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Zhou X, Zhang B, Meng Q, Li L. Effects of Graphene Oxide on Endophytic Bacteria Population Characteristics in Plants from Soils Contaminated by Polycyclic Aromatic Hydrocarbons. Molecules 2024; 29:2342. [PMID: 38792204 PMCID: PMC11123924 DOI: 10.3390/molecules29102342] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2024] [Revised: 05/09/2024] [Accepted: 05/14/2024] [Indexed: 05/26/2024] Open
Abstract
Environmental pollution stands as one of the significant global challenges we face today. Polycyclic aromatic hydrocarbons (PAHs), a class of stubborn organic pollutants, have long been a focal point of bioremediation research. This study aims to explore the impact and mechanisms of graphene oxide (GO) on the phytoremediation effectiveness of PAHs. The results underscore the significant efficacy of GO in accelerating the degradation of PAHs. Additionally, the introduction of GO altered the diversity and community structure of endophytic bacteria within the roots, particularly those genera with potential for PAH degradation. Through LEfSe analysis and correlation studies, we identified specific symbiotic bacteria, such as Mycobacterium, Microbacterium, Flavobacterium, Sphingomonas, Devosia, Bacillus, and Streptomyces, which coexist and interact under the influence of GO, synergistically degrading PAHs. These bacteria may serve as key biological markers in the PAH degradation process. These findings provide new theoretical and practical foundations for the application of nanomaterials in plant-based remediation of polluted soils and showcase the immense potential of plant-microbe interactions in environmental restoration.
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Affiliation(s)
- Xingxing Zhou
- College of Architecture and Environment, Ningxia Institute of Science and Technology, Shizuishan 753000, China;
| | - Bo Zhang
- Key Laboratory of Ministry of Education on Safe Mining of Deep Metal Mines, Northeastern University, Shenyang 110819, China;
| | - Qingzhu Meng
- College of Material Science and Green Technologies, Kazakh-British Technical University, Almaty 050000, Kazakhstan;
| | - Lingmei Li
- College of Life Science, Shenyang Normal University, Shenyang 110034, China
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Kambhu A, Satapanajaru T, Somsamak P, Pengthamkeerati P, Chokejaroenrat C, Muangkaew K, Nonthamit K. Green cleanup of styrene-contaminated soil by carbon-based nanoscale zero-valent iron and phytoremediation: Sunn hemp ( Crotalaria juncea), zinnia ( Zinnia violacea Cav.), and marigold ( Tagetes erecta L. ). Heliyon 2024; 10:e27499. [PMID: 38496887 PMCID: PMC10944241 DOI: 10.1016/j.heliyon.2024.e27499] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2023] [Revised: 02/29/2024] [Accepted: 02/29/2024] [Indexed: 03/19/2024] Open
Abstract
Accidental chemical spills can result in styrene-contaminated soil. Styrene negatively affects human health and the environment. The objective of this study was to remediate styrene-contaminated soil using a combination of activated carbon-based nanoscale zero-valent iron (nZVI-AC) and phytoremediation by sunn hemp (Crotalaria juncea), zinnia (Zinnia violacea Cav.) and marigolds (Tagetes erecta L.). The results showed that all three plant types could potentially increase the removal efficiency of styrene-contaminated soil. At 28 days, all three plants showed complete removal of styrene from the soil with 1 g/kg of nZVI-AC, activated carbon-based nZVI synthesized by tea leaves (Camellia sinensis) (T-nZVI-AC), or activated carbon-based nZVI synthesized by red Thai holy basil (Ocimum tenuiflorum L.) (B-nZVI-AC). However, styrene removal efficiencies of sunn hemp, zinnia, and marigold without carbon-based nZVI were 30%, 67%, and 56%, respectively. Statistical analysis (ANOVA) revealed that the removal efficiencies differed significantly from those of phytoremediation alone. With the same removal efficiency (100%), the biomass of sunn hemp in nano-phytoremediation treatments differed by approximately 55%, whereas the biomass of zinnia differed by >67%, compared with that of the control experiment. For marigold, the difference in biomass was only 30%. Styrene was adsorbed on surface of soil and AC and then further oxidized under air-water-nZVI environment, while phytovolatilization played an important role in transporting the remaining styrene from the contaminated soil to the air. Marigold was used as an alternative plant for the nano-phytoremediation of styrene-contaminated soil because of its sturdy nature, high biomass, tolerance to toxic effects, and ease of cultivation. Remediation of one cubic meter of styrene-contaminated soil by a combination of carbon-based nanoscale zero-valent iron and phytoremediation by marigolds emitted 0.0027 kgCO2/m3.
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Affiliation(s)
- Ann Kambhu
- Department of Environmental Technology and Management, Faculty of Environment, Kasetsart University, Bangkok, 10900 Thailand
| | - Tunlawit Satapanajaru
- Department of Environmental Technology and Management, Faculty of Environment, Kasetsart University, Bangkok, 10900 Thailand
| | - Piyapawn Somsamak
- Department of Environmental Technology and Management, Faculty of Environment, Kasetsart University, Bangkok, 10900 Thailand
| | - Patthra Pengthamkeerati
- Department of Environmental Technology and Management, Faculty of Environment, Kasetsart University, Bangkok, 10900 Thailand
| | - Chanat Chokejaroenrat
- Department of Environmental Technology and Management, Faculty of Environment, Kasetsart University, Bangkok, 10900 Thailand
| | - Kanitchanok Muangkaew
- Department of Environmental Technology and Management, Faculty of Environment, Kasetsart University, Bangkok, 10900 Thailand
| | - Kanthika Nonthamit
- Department of Environmental Technology and Management, Faculty of Environment, Kasetsart University, Bangkok, 10900 Thailand
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Caronni S, Quaglini LA, Franzetti A, Gentili R, Montagnani C, Citterio S. Does Caulerpa prolifera with Its Bacterial Coating Represent a Promising Association for Seawater Phytoremediation of Diesel Hydrocarbons? PLANTS (BASEL, SWITZERLAND) 2023; 12:2507. [PMID: 37447068 DOI: 10.3390/plants12132507] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/29/2023] [Revised: 06/13/2023] [Accepted: 06/27/2023] [Indexed: 07/15/2023]
Abstract
Anthropic diesel-derived contamination of Mediterranean coastal waters is of great concern. Nature-based solutions such as phytoremediation are considered promising technologies to remove contaminants from marine environments. The aim of this work was to investigate the tolerance of the Mediterranean autochthonous seaweed Caulerpa prolifera (Forsskal) Lamouroux to diesel fuel and its hydrocarbon degradation potential. Changes in C. prolifera traits, including its associated bacterial community abundance and structure, were determined by fluorescence microscopy and next-generation sequencing techniques. Thalli of C. prolifera artificially exposed to increasing concentration of diesel fuel for 30 days and thalli collected from three natural sites with different levels of seawater diesel-derived hydrocarbons were analysed. Gas chromatography was applied to determine the seaweed hydrocarbon degradation potential. Overall, in controlled conditions the lower concentration of diesel (0.01%) did not affect C. prolifera survival and growth, whereas the higher concentration (1%) resulted in high mortality and blade damages. Similarly, only natural thalli, collected at the most polluted marine site (750 mg L-1), were damaged. A higher abundance of epiphytic bacteria, with a higher relative abundance of Vibrio bacteria, was positively correlated to the health status of the seaweed as well as to its diesel-degradation ability. In conclusion, C. prolifera tolerated and degraded moderate concentrations of seawater diesel-derived compounds, especially changing the abundance and community structure of its bacterial coating. The protection and exploitation of this autochthonous natural seaweed-bacteria symbiosis represents a useful strategy to mitigate the hydrocarbon contamination in moderate polluted Mediterranean costal environments.
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Affiliation(s)
- Sarah Caronni
- Department of Earth and Environmental Sciences, University of Milano-Bicocca, Piazza della Scienza 1, 20126 Milan, Italy
| | - Lara A Quaglini
- Department of Earth and Environmental Sciences, University of Milano-Bicocca, Piazza della Scienza 1, 20126 Milan, Italy
| | - Andrea Franzetti
- Department of Earth and Environmental Sciences, University of Milano-Bicocca, Piazza della Scienza 1, 20126 Milan, Italy
| | - Rodolfo Gentili
- Department of Earth and Environmental Sciences, University of Milano-Bicocca, Piazza della Scienza 1, 20126 Milan, Italy
| | - Chiara Montagnani
- Department of Earth and Environmental Sciences, University of Milano-Bicocca, Piazza della Scienza 1, 20126 Milan, Italy
| | - Sandra Citterio
- Department of Earth and Environmental Sciences, University of Milano-Bicocca, Piazza della Scienza 1, 20126 Milan, Italy
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4
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Shen T, Jin R, Yan J, Cheng X, Zeng L, Chen Q, Gu Y, Zou L, Zhao K, Xiang Q, Penttinen P, Ma M, Li S, Zou T, Yu X. Study on diversity, nitrogen-fixing capacity, and heavy metal tolerance of culturable Pongamia pinnata rhizobia in the vanadium-titanium magnetite tailings. Front Microbiol 2023; 14:1078333. [PMID: 37405163 PMCID: PMC10315665 DOI: 10.3389/fmicb.2023.1078333] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2022] [Accepted: 05/23/2023] [Indexed: 07/06/2023] Open
Abstract
Introduction The diversity, nitrogen-fixing capacity and heavy metal tolerance of culturable rhizobia in symbiotic relationship with Pongamia pinnata surviving in vanadium (V) - titanium (Ti) magnetite (VTM) tailings is still unknown, and the rhizobia isolates from the extreme barren VTM tailings contaminated with a variety of metals would provide available rhizobia resources for bioremediation. Methods P. pinnata plants were cultivated in pots containing the VTM tailings until root nodules formed, and then culturable rhizobia were isolated from root nodules. The diversity, nitrogen-fixing capacity and heavy metal tolerance of rhizobia were performed. Results Among 57 rhizobia isolated from these nodules, only twenty strains showed different levels of tolerance to copper (Cu), nickel (Ni), manganese (Mn) and zinc (Zn), especially strains PP1 and PP76 showing high tolerance against these four heavy metals. Based on the phylogenetic analysis of 16S rRNA and four house-keeping genes (atpD, recA, rpoB, glnII), twelve isolates were identified as Bradyrhizobium pachyrhizi, four as Ochrobactrum anthropic, three as Rhizobium selenitireducens and one as Rhizobium pisi. Some rhizobia isolates showed a high nitrogen-fixing capacity and promoted P. pinnata growth by increasing nitrogen content by 10%-145% in aboveground plant part and 13%-79% in the root. R. pachyrhizi PP1 showed the strongest capacity of nitrogen fixation, plant growth promotion and resistance to heavy metals, which provided effective rhizobia strains for bioremediation of VTM tailings or other contaminated soils. This study demonstrated that there are at least three genera of culturable rhizobia in symbiosis with P. pinnata in VTM tailings. Discussion Abundant culturable rhizobia with the capacity of nitrogen fixation, plant growth promotion and resistance to heavy metals survived in VTM tailings, indicating more valuable functional microbes could be isolated from extreme soil environments such as VTM tailings.
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Affiliation(s)
- Tian Shen
- College of Resources, Sichuan Agricultural University, Chengdu, China
| | - Ruimin Jin
- College of Resources, Sichuan Agricultural University, Chengdu, China
| | - Jing Yan
- College of Resources, Sichuan Agricultural University, Chengdu, China
| | - Xiran Cheng
- College of Resources, Sichuan Agricultural University, Chengdu, China
| | - Lan Zeng
- College of Resources, Sichuan Agricultural University, Chengdu, China
| | - Qiang Chen
- College of Resources, Sichuan Agricultural University, Chengdu, China
- Key Laboratory of Investigation and Monitoring, Protection and Utilization for Cultivated Land Resources, Ministry of Natural Resources, Chengdu, China
| | - Yunfu Gu
- College of Resources, Sichuan Agricultural University, Chengdu, China
| | - Likou Zou
- College of Resources, Sichuan Agricultural University, Chengdu, China
| | - Ke Zhao
- College of Resources, Sichuan Agricultural University, Chengdu, China
| | - Quanju Xiang
- College of Resources, Sichuan Agricultural University, Chengdu, China
| | - Petri Penttinen
- College of Resources, Sichuan Agricultural University, Chengdu, China
| | - Menggen Ma
- College of Resources, Sichuan Agricultural University, Chengdu, China
| | - Shuangcheng Li
- College of Resources, Sichuan Agricultural University, Chengdu, China
| | - Ting Zou
- College of Resources, Sichuan Agricultural University, Chengdu, China
| | - Xiumei Yu
- College of Resources, Sichuan Agricultural University, Chengdu, China
- Key Laboratory of Investigation and Monitoring, Protection and Utilization for Cultivated Land Resources, Ministry of Natural Resources, Chengdu, China
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5
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Zhang H, Liu X, Wang Y, Duan L, Liu X, Zhang X, Dong L. Deep relationships between bacterial community and polycyclic aromatic hydrocarbons in soil profiles near typical coking plants. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:64486-64498. [PMID: 37071357 DOI: 10.1007/s11356-023-26903-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/15/2022] [Accepted: 04/05/2023] [Indexed: 05/11/2023]
Abstract
Bacterial communities play an important role in maintaining the normal functioning of ecosystems; therefore, it is important to understand the effects of polycyclic aromatic hydrocarbons (PAHs) on the bacterial community. In addition, understanding the metabolic potential of bacterial communities for PAHs is important for the remediation of PAH-contaminated soils. However, the deep relationship between PAHs and bacterial community in coking plants is not clear. In this study, we determined the bacterial community and the concentration of PAHs in three soil profiles contaminated by coke plants in Xiaoyi Coking Park, Shanxi, China, using 16S rRNA and gas chromatography coupled with mass spectrometry, respectively. The results show that 2 ~ 3 rings PAHs are the main PAHs and Acidobacteria (23.76%) was the dominant bacterial community in three soil profiles. Statistical analysis showed that there were significant differences in the composition of bacterial communities at different depths and different sites. Redundancy analysis (RDA) and variance partitioning analysis (VPA) illustrate the influence of environmental factors (including PAHs, soil organic matter (SOM), and pH) on the vertical distribution of soil bacterial community, and PAHs were the main factors affecting the bacterial community in this study. The co-occurrence networks further indicated correlations between bacterial community and PAHs and found that Nap has the greatest effect on bacterial community compared with other PAHs. In addition, some operational taxonomic units (OTUs, OTU2, and OTU37) have the potential to degrade PAHs. PICRUSt2 (Phylogenetic Investigation of Communities by Reconstruction of Unobserved States) was used for further study on the potential of microbial PAHs degradation from a genetic perspective, which showed that different PAH metabolism genes were present in the genomes of bacterial communities in the three soil profiles, and a total of 12 PAH degradation-related genes were isolated, mainly dioxygenase and dehydrogenase genes.
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Affiliation(s)
- Handan Zhang
- State Key Laboratory of Water Environment Simulation, School of Environment, Beijing Normal University, Beijing, 100875, People's Republic of China
- Research and Development Center for Watershed Environmental Eco-Engineering (Zhuhai), Beijing Normal University, Zhuhai, 519087, People's Republic of China
| | - Xinhui Liu
- State Key Laboratory of Water Environment Simulation, School of Environment, Beijing Normal University, Beijing, 100875, People's Republic of China.
- Research and Development Center for Watershed Environmental Eco-Engineering (Zhuhai), Beijing Normal University, Zhuhai, 519087, People's Republic of China.
| | - Yujing Wang
- State Key Laboratory of Water Environment Simulation, School of Environment, Beijing Normal University, Beijing, 100875, People's Republic of China
| | - Linshuai Duan
- State Key Laboratory of Water Environment Simulation, School of Environment, Beijing Normal University, Beijing, 100875, People's Republic of China
| | - Xiqin Liu
- State Key Laboratory of Water Environment Simulation, School of Environment, Beijing Normal University, Beijing, 100875, People's Republic of China
| | - Xin Zhang
- State Key Laboratory of Water Environment Simulation, School of Environment, Beijing Normal University, Beijing, 100875, People's Republic of China
- Research and Development Center for Watershed Environmental Eco-Engineering (Zhuhai), Beijing Normal University, Zhuhai, 519087, People's Republic of China
| | - Lu Dong
- State Key Laboratory of Water Environment Simulation, School of Environment, Beijing Normal University, Beijing, 100875, People's Republic of China
- Research and Development Center for Watershed Environmental Eco-Engineering (Zhuhai), Beijing Normal University, Zhuhai, 519087, People's Republic of China
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6
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Sam K, Onyena AP, Zabbey N, Odoh CK, Nwipie GN, Nkeeh DK, Osuji LC, Little DI. Prospects of emerging PAH sources and remediation technologies: insights from Africa. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:39451-39473. [PMID: 36773255 DOI: 10.1007/s11356-023-25833-9] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/11/2022] [Accepted: 02/06/2023] [Indexed: 02/12/2023]
Abstract
Remediation of polluted environmental media is critical to realization of the goals of the United Nations Decade on Ecosystem Restoration (UNDER) project. Many natural-resource dependent economies in Africa are characterized by numerous contaminated sites resulting from conventional and artisanal natural-resource mining. Alongside these extractive activities, there are refining, processing, and power plant operations, agriculture, urban, and infrastructure developments that contribute to increased discharges of toxins into the environment, particularly polycyclic aromatic hydrocarbons (PAHs), which are carcinogenic in nature. As a result, human and environmental receptors (i.e., air, water, soil, and biota) face increasing risk of exposure to higher concentrations of PAH. Evidence exists of widespread PAH contamination and in some instances where corrective action has been taken, residual contaminant levels exceeding regulatory thresholds remain in the environment due to the use of inappropriate and unsustainable remedial methods. Considering the long-term harmful effects of PAH on human and ecosystem health, land use, and the complexity of Africa's environmental deterioration, it is essential to explore remediation strategies that benefit both the environment and the economy. This review examined the status, opportunities, and challenges related to the application of emerging green technologies to remediate PAH-contaminated sites in five African countries (South Africa, Nigeria, Angola, Egypt, and Kenya). This paper concludes that bioremediation presents a sustainable option, considering its low net emissions and environmental footprints, and its low economic cost to Africa's poor communities and overburdened economy. However, an integration of biological and physico-chemical approaches could address various compounds and concentrations of PAH contamination.
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Affiliation(s)
- Kabari Sam
- School of Environment, Geography and Geoscience, University of Portsmouth, University House, Winston Churchill Ave, Portsmouth, PO1 2UP, UK.,Department of Marine Environment and Pollution Control, Faculty of Marine Environmental Management, Nigeria Maritime University, Okerenkoko, Delta State, Nigeria
| | - Amarachi P Onyena
- Department of Marine Environment and Pollution Control, Faculty of Marine Environmental Management, Nigeria Maritime University, Okerenkoko, Delta State, Nigeria.
| | - Nenibarini Zabbey
- Department of Fisheries, Faculty of Agriculture, University of Port Harcourt, East-West Road, PMB 5323, Choba, Port Harcourt, Rivers State, Nigeria.,Environment and Conservation Unit, Centre for Environment, Human Rights and Development (CEHRD), D-Line, Port Harcourt, Rivers State, Nigeria
| | - Chuks K Odoh
- Division of Biotechnology, Dalian Institute of Chemical Physics, CAS, Dalian, 116023, China
| | - Goodluck N Nwipie
- Department of Fisheries, Faculty of Agriculture, University of Port Harcourt, East-West Road, PMB 5323, Choba, Port Harcourt, Rivers State, Nigeria
| | - Dumbari K Nkeeh
- Department of Environmental Technology and Management, World Bank Africa Centre of Excellence, Centre for Oilfield Chemicals Research, University of Port Harcourt, Choba, P.M.B.5323, Port Harcourt, Rivers State, Nigeria
| | - Leo C Osuji
- Petroleum Chemistry Research Group, Department of Pure and Industrial Chemistry, University of Port Harcourt, Choba, P.M.B 5323, Port Harcourt, Nigeria
| | - David I Little
- Environmental Consultancy, Swavesey, Cambridgeshire, Cambridge, CB24 4RL, UK
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7
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Xiang L, Harindintwali JD, Wang F, Redmile-Gordon M, Chang SX, Fu Y, He C, Muhoza B, Brahushi F, Bolan N, Jiang X, Ok YS, Rinklebe J, Schaeffer A, Zhu YG, Tiedje JM, Xing B. Integrating Biochar, Bacteria, and Plants for Sustainable Remediation of Soils Contaminated with Organic Pollutants. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2022; 56:16546-16566. [PMID: 36301703 PMCID: PMC9730858 DOI: 10.1021/acs.est.2c02976] [Citation(s) in RCA: 63] [Impact Index Per Article: 31.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/06/2023]
Abstract
The contamination of soil with organic pollutants has been accelerated by agricultural and industrial development and poses a major threat to global ecosystems and human health. Various chemical and physical techniques have been developed to remediate soils contaminated with organic pollutants, but challenges related to cost, efficacy, and toxic byproducts often limit their sustainability. Fortunately, phytoremediation, achieved through the use of plants and associated microbiomes, has shown great promise for tackling environmental pollution; this technology has been tested both in the laboratory and in the field. Plant-microbe interactions further promote the efficacy of phytoremediation, with plant growth-promoting bacteria (PGPB) often used to assist the remediation of organic pollutants. However, the efficiency of microbe-assisted phytoremediation can be impeded by (i) high concentrations of secondary toxins, (ii) the absence of a suitable sink for these toxins, (iii) nutrient limitations, (iv) the lack of continued release of microbial inocula, and (v) the lack of shelter or porous habitats for planktonic organisms. In this regard, biochar affords unparalleled positive attributes that make it a suitable bacterial carrier and soil health enhancer. We propose that several barriers can be overcome by integrating plants, PGPB, and biochar for the remediation of organic pollutants in soil. Here, we explore the mechanisms by which biochar and PGPB can assist plants in the remediation of organic pollutants in soils, and thereby improve soil health. We analyze the cost-effectiveness, feasibility, life cycle, and practicality of this integration for sustainable restoration and management of soil.
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Affiliation(s)
- Leilei Xiang
- CAS
Key Laboratory of Soil Environment and Pollution Remediation, Institute of Soil Science, Chinese Academy of Sciences, Nanjing 210008, China
- University
of Chinese Academy of Sciences, Beijing 100049, China
| | - Jean Damascene Harindintwali
- CAS
Key Laboratory of Soil Environment and Pollution Remediation, Institute of Soil Science, Chinese Academy of Sciences, Nanjing 210008, China
- University
of Chinese Academy of Sciences, Beijing 100049, China
| | - Fang Wang
- CAS
Key Laboratory of Soil Environment and Pollution Remediation, Institute of Soil Science, Chinese Academy of Sciences, Nanjing 210008, China
- University
of Chinese Academy of Sciences, Beijing 100049, China
- Institute
for Environmental Research, RWTH Aachen
University, 52074 Aachen, Germany
- or
| | - Marc Redmile-Gordon
- Department
of Environmental Horticulture, Royal Horticultural
Society, Wisley, Surrey GU23 6QB, U.K.
| | - Scott X. Chang
- Department
of Renewable Resources, University of Alberta, Edmonton, Alberta T6G 2R3, Canada
| | - Yuhao Fu
- CAS
Key Laboratory of Soil Environment and Pollution Remediation, Institute of Soil Science, Chinese Academy of Sciences, Nanjing 210008, China
- University
of Chinese Academy of Sciences, Beijing 100049, China
| | - Chao He
- CAS
Key Laboratory of Soil Environment and Pollution Remediation, Institute of Soil Science, Chinese Academy of Sciences, Nanjing 210008, China
- Zhejiang University, Hangzhou 310058, China
| | - Bertrand Muhoza
- College
of Food Science, Northeast Agricultural
University, Harbin, Heilongjiang 150030, China
| | - Ferdi Brahushi
- Department
of Agroenvironment and Ecology, Agricultural
University of Tirana, Tirana 1029, Albania
| | - Nanthi Bolan
- School of
Agriculture and Environment, The UWA Institute of Agriculture, The University of Western Australia, Perth, Western Australia 6001, Australia
| | - Xin Jiang
- CAS
Key Laboratory of Soil Environment and Pollution Remediation, Institute of Soil Science, Chinese Academy of Sciences, Nanjing 210008, China
- University
of Chinese Academy of Sciences, Beijing 100049, China
| | - Yong Sik Ok
- Korea
Biochar Research Center, APRU Sustainable Waste Management Program
& Division of Environmental Science and Ecological Engineering, Korea University, Seoul 02841, Republic
of Korea
| | - Jörg Rinklebe
- Department
of Soil and Groundwater Management, Bergische
Universität, 42285 Wuppertal, Germany
| | - Andreas Schaeffer
- Institute
for Environmental Research, RWTH Aachen
University, 52074 Aachen, Germany
- School
of the Environment, State Key Laboratory of Pollution Control and
Resource Reuse, Nanjing University, 210023 Nanjing, China
- Key
Laboratory of the Three Gorges Reservoir Region’s Eco-Environment, Chongqing University, 400045 Chongqing, China
| | - Yong-guan Zhu
- University
of Chinese Academy of Sciences, Beijing 100049, China
- Key
Laboratory of Urban Environment and Health, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, China
- State
Key Laboratory of Urban and Regional Ecology, Research Center for Eco-Environmental Sciences, Chinese Academy of
Sciences, Beijing 100085, China
| | - James M. Tiedje
- Center
for Microbial Ecology, Department of Plant, Soil and Microbial Sciences, Michigan State University, East Lansing, Michigan 48824, United States
| | - Baoshan Xing
- Stockbridge
School of Agriculture, University of Massachusetts, Amherst, Massachusetts 01003, United States
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8
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Liu H, Huang X, Fan X, Wang Q, Liu Y, Wei H, He J. Phytoremediation of crude oil-contaminated sediment using Suaeda heteroptera enhanced by Nereis succinea and oil-degrading bacteria. INTERNATIONAL JOURNAL OF PHYTOREMEDIATION 2022; 25:322-328. [PMID: 36444773 DOI: 10.1080/15226514.2022.2083576] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
A 150-day experiment was performed to investigate the stimulatory effect of a promising phytoremediation strategy consisting of Suaeda heteroptera (S. heteroptera), Nereis succinea (N. succinea), and oil-degrading bacteria for cleaning up total petroleum hydrocarbons (TPHs) in spiked sediment. Inoculation with oil-degrading bacteria and/or N. succinea increased plant yield and TPH accumulation in S. heteroptera plants. The highest TPH dissipation (40.5%) was obtained in the combination treatment, i.e., S. heteroptera + oil-degrading bacteria + N. succinea, in which the sediment TPH concentration decreased from an initial value of 3955 to 2355 mg/kg in 150 days. BAF, BCF, and TF confirmed the role of N. succinea and oil-degrading bacteria in the amelioration and translocation of TPHs. In addition, TPH toxicity of S. heteroptera was alleviated by N. succinea and oil-degrading bacteria addition through the reduction of oxidative stress. Therefore, S. heteroptera could be used for cleaning up oil-contaminated sediment, particularly in the presence of oil-degrading bacteria + N. succinea. Field studies on oil-degrading bacteria + N. succinea may provide new insights on the rehabilitation and restoration of sediments contaminated by TPHs.
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Affiliation(s)
- Huan Liu
- College of Marine Technology and Environment, Dalian Ocean University, Dalian, PR China
- Key Laboratory of Nearshore Marine Environmental Science and Technology in Liaoning Province, Dalian Ocean University, Dalian, PR China
| | - Xin Huang
- College of Marine Technology and Environment, Dalian Ocean University, Dalian, PR China
- Key Laboratory of Nearshore Marine Environmental Science and Technology in Liaoning Province, Dalian Ocean University, Dalian, PR China
| | - Xiaoru Fan
- College of Marine Technology and Environment, Dalian Ocean University, Dalian, PR China
- Key Laboratory of Nearshore Marine Environmental Science and Technology in Liaoning Province, Dalian Ocean University, Dalian, PR China
| | - Qingzhi Wang
- College of Marine Technology and Environment, Dalian Ocean University, Dalian, PR China
- Key Laboratory of Nearshore Marine Environmental Science and Technology in Liaoning Province, Dalian Ocean University, Dalian, PR China
| | - Yuan Liu
- College of Marine Technology and Environment, Dalian Ocean University, Dalian, PR China
- Key Laboratory of Nearshore Marine Environmental Science and Technology in Liaoning Province, Dalian Ocean University, Dalian, PR China
| | - Haifeng Wei
- College of Marine Technology and Environment, Dalian Ocean University, Dalian, PR China
- Key Laboratory of Nearshore Marine Environmental Science and Technology in Liaoning Province, Dalian Ocean University, Dalian, PR China
| | - Jie He
- College of Marine Technology and Environment, Dalian Ocean University, Dalian, PR China
- Key Laboratory of Nearshore Marine Environmental Science and Technology in Liaoning Province, Dalian Ocean University, Dalian, PR China
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9
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Chowdhary P, Mani S, Shukla P, Raj A. Microbes and Environment. Microb Biotechnol 2022. [DOI: 10.1002/9781119834489.ch1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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10
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Hostyn G, Schwartz C, Côme JM, Ouvrard S. Assessment for combined phytoremediation and biomass production on a moderately contaminated soil. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2022; 29:59736-59750. [PMID: 35394632 DOI: 10.1007/s11356-022-19963-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/21/2021] [Accepted: 03/25/2022] [Indexed: 06/14/2023]
Abstract
Once previous industrial activity has ceased, brownfields are found in urban and suburban environments and managed in different ways ranging from being left untouched to total reconversion. These situations apply to large surface areas often impacted by residual diffuse pollution. Though significant and preventing any sensitive use, residual contamination does not necessarily require treatment. Moreover, conventional treatments show their technical and economic limits in these situations and gentle remediation options such as phytomanagement might appear more relevant to the management of those sites. Thus, these sites face up two major issues: managing moderate contamination levels and providing an alternative use of economic interest. This work proposes to assess a management strategy associating the phytoremediation of organic pollution along with the production of biomass for energy generation production. A 16-week controlled growth experiment was conducted on a soil substrate moderately impacted by multiple pollution (trace elements, mainly Zn and Pb, and hydrocarbons), by associating rhizodegradation with Medicago sativa or biomass production with Robinia pseudoacacia or Alnus incana in monocultures. The effect of a microbial inoculum amendment on the performances of these treatments was also evaluated. Results showed total hydrocarbons (TH), and to a lesser extent polycyclic aromatic hydrocarbons (PAH), concentrations decreased over time, whatever the plant cover. Good biomass production yields were achieved for both tree species in comparison with the control sample, even though R. pseudoacacia seemed to perform better. Furthermore, the quality of the biomass produced was in conformity with the thresholds set by the legislation concerning its use as a renewable energy source.
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Affiliation(s)
- Guillaume Hostyn
- Université de Lorraine, INRAE, LSE, F-54000, Nancy, France
- GINGER BURGEAP, Département Recherche Et Développement, 19 rue de la Villette, 69425, Lyon, France
| | | | - Jean-Marie Côme
- GINGER BURGEAP, Département Recherche Et Développement, 19 rue de la Villette, 69425, Lyon, France
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Saravanakumar K, Sivasantosh S, Sathiyaseelan A, Sankaranarayanan A, Naveen KV, Zhang X, Jamla M, Vijayasarathy S, Vishnu Priya V, MubarakAli D, Wang MH. Impact of benzo[a]pyrene with other pollutants induce the molecular alternation in the biological system: Existence, detection, and remediation methods. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2022; 304:119207. [PMID: 35351595 DOI: 10.1016/j.envpol.2022.119207] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/27/2022] [Revised: 03/16/2022] [Accepted: 03/22/2022] [Indexed: 06/14/2023]
Abstract
The exposure of benzo [a]pyrene (BaP) in recent times is rather unavoidable than ever before. BaP emissions are sourced majorly from anthropogenic rather than natural provenance from wildfires and volcanic eruptions. A major under-looked source is via the consumption of foods that are deep-fried, grilled, and charcoal smoked foods (meats in particular). BaP being a component of poly aromatic hydrocarbons has been classified as a Group I carcinogenic agent, which has been shown to cause both systemic and localized effects in animal models as well as in humans; has been known to cause various forms of cancer, accelerate neurological disorders, invoke DNA and cellular damage due to the generation of reactive oxygen species and involve in multi-generational phenotypic and genotypic defects. BaP's short and accumulated exposure has been shown in disrupting the fertility of gamete cells. In this review, we have discussed an in-depth and capacious run-through of the various origins of BaP, its economic distribution and its impact as well as toxicological effects on the environment and human health. It also deals with a mechanism as a single compound and its ability to synergize with other chemicals/materials, novel sensitive detection methods, and remediation approaches held in the environment.
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Affiliation(s)
- Kandasamy Saravanakumar
- Department of Bio-Health Convergence, Kangwon National University, Chuncheon, 200-701, Republic of Korea.
| | | | - Anbazhagan Sathiyaseelan
- Department of Bio-Health Convergence, Kangwon National University, Chuncheon, 200-701, Republic of Korea.
| | - Alwarappan Sankaranarayanan
- Department of Life Sciences, Sri Sathya Sai University for Human Excellence, Navanihal, Karnataka, 585 313, India.
| | - Kumar Vishven Naveen
- Department of Bio-Health Convergence, Kangwon National University, Chuncheon, 200-701, Republic of Korea.
| | - Xin Zhang
- Department of Bio-Health Convergence, Kangwon National University, Chuncheon, 200-701, Republic of Korea.
| | - Monica Jamla
- Department of Biotechnology, Modern College of Arts, Science and Commerce, Savitribai Phule Pune University, Pune, 411007, India.
| | - Sampathkumar Vijayasarathy
- Department of Biotechnology, School of Biosciences and Technology, Vellore Institute of Technology, Vellore, Tamil Nadu, 632014, India.
| | - Veeraraghavan Vishnu Priya
- Department of Biochemistry, Saveetha Dental College, Saveetha Institute of Medical and Technical Sciences, Saveetha University, Chennai, 600077, India.
| | - Davoodbasha MubarakAli
- School of Life Sciences, B.S. Abdur Rahman Crescent Institute of Science and Technology, Chennai, Tamil Nadu, 600048, India.
| | - Myeong-Hyeon Wang
- Department of Bio-Health Convergence, Kangwon National University, Chuncheon, 200-701, Republic of Korea.
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Wang Q, Zhou Q, Huang L, Xu S, Fu Y, Hou D, Feng Y, Yang X. Cadmium phytoextraction through Brassica juncea L. under different consortia of plant growth-promoting bacteria from different ecological niches. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2022; 237:113541. [PMID: 35483144 DOI: 10.1016/j.ecoenv.2022.113541] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/24/2021] [Revised: 04/14/2022] [Accepted: 04/17/2022] [Indexed: 06/14/2023]
Abstract
Combined bioaugmentation inoculants composed of two or more plant growth-promoting bacteria (PGPB) were more effective than single inoculants for plant growth and cadmium (Cd) removal in contaminated soils. However, the principles of consortia construction still need to be discovered. Here, a pot experiment with Cd natural polluted soil was conducted and PGPB consortia with different ecological niches from hyperaccumulator Sedum alfredii Hance were used to compare their effects and mechanisms on plant growth condition, Cd phytoextraction efficiency, soil enzymatic activities, and rhizospheric bacterial community of Brassica juncea L. The results showed that both rhizospheric and endophytic PGPB consortia inoculants promoted plant growth (6.9%-22.1%), facilitated Cd uptake (230.0%-350.0%) of oilseed rape, increased Cd phytoextraction efficiency (343.0%-441.0%), and enhanced soil Cd removal rates (92.0%-144.0%). PGPB consortia inoculants also enhanced soil microbial carbon by 22.2%-50.5%, activated the activities of soil urease and sucrase by 74.7%-158.4% and 8.4%-61.3%, respectively. Simultaneously, PGPB consortia inoculants increased the relative abundance of Flavobacterium, Rhodanobacter, Kosakonia, Pseudomonas and Paraburkholderia at the genus level, which may be beneficial to plant growth promotion and bacterial phytopathogen biocontrol. Although the four PGPB consortia inoculants promoted oilseed growth, amplified Cd phytoextraction, and changed bacterial community structure in rhizosphere soil, their original ecological niches were not a decisive factor for the efficiency of PGPB consortia. therefore, the results enriched the present knowledge regarding the significant roles of PGPB consortia as bioaugmentation agents and preliminarily explored construction principles of effective bioaugmentation inoculants, which will provide insights into the microbial responses to combined inoculation in the Cd-contaminated soils.
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Affiliation(s)
- Qiong Wang
- MOE Key Laboratory of Environment Remediation and Ecological Health, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, China
| | - Qiyao Zhou
- MOE Key Laboratory of Environment Remediation and Ecological Health, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, China
| | - Lukuan Huang
- MOE Key Laboratory of Environment Remediation and Ecological Health, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, China
| | - Shun'an Xu
- MOE Key Laboratory of Environment Remediation and Ecological Health, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, China
| | - Yingyi Fu
- MOE Key Laboratory of Environment Remediation and Ecological Health, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, China
| | - Dandi Hou
- School of Marine Sciences, Ningbo University, Ningbo 315211, China.
| | - Ying Feng
- MOE Key Laboratory of Environment Remediation and Ecological Health, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, China.
| | - Xiaoe Yang
- MOE Key Laboratory of Environment Remediation and Ecological Health, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, China
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13
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Li W, Li WB, Xing LJ, Guo SX. Effect of arbuscular mycorrhizal fungi (AMF) and plant growth-promoting rhizobacteria (PGPR) on microorganism of phenanthrene and pyrene contaminated soils. INTERNATIONAL JOURNAL OF PHYTOREMEDIATION 2022; 25:240-251. [PMID: 35549569 DOI: 10.1080/15226514.2022.2071832] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
A pot experiment was performed to investigate the effect of phytoremediation (CK, using tall fescue), fungi remediation (GV, using Glomus versiforme), bacterial remediation (PS, using Pseudomonas fluorescens Ps2-6), and microbial-phytoremediation (GVPS, using three species) on removing polycyclic aromatic hydrocarbons (PAHs) and the microbial diversity in soils. Inoculation with G. versiforme and P. fluorescens could increase the biomass of tall fescue and the accumulation of phenanthrene (PHE) and pyrene (PYR) in plants. Among them, the highest PHE and PYR removal efficiencies and highest biomass of tall fescue were observed in the GVPS treatment and the microbial diversity in contaminated soil was changed, the result revealed that Proteobacteria and Ascomycota were the dominant bacterial phylum and fungal phylum in all treatments, while more Proteobacteria were detected in GVPS treatment. At the genus level, the abundance of Sphingomonas (3.17%), Pseudomonas (2.05%), and Fusarium (8.65%) treated with GVPS increased compared with other treatments. These pieces of evidence contribute to a better understanding of the mechanisms involved in the combined microbial-phytoremediation strategies for PAHs-contaminated soils, especially the effects of microbial-phytoremediation on rhizosphere microbial diversity.
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Affiliation(s)
- Wei Li
- College of Landscape Architecture and Forestry, Qingdao Agricultural University, Qingdao, China
| | - Wen-Bin Li
- College of Landscape Architecture and Forestry, Qingdao Agricultural University, Qingdao, China
| | - Li-Jun Xing
- College of Landscape Architecture and Forestry, Qingdao Agricultural University, Qingdao, China
| | - Shao-Xia Guo
- College of Landscape Architecture and Forestry, Qingdao Agricultural University, Qingdao, China
- Institute of Mycorrhizal Biotechnology, Qingdao Agricultural University, Qingdao, China
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14
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Kariyawasam T, Doran GS, Howitt JA, Prenzler PD. Polycyclic aromatic hydrocarbon contamination in soils and sediments: Sustainable approaches for extraction and remediation. CHEMOSPHERE 2022; 291:132981. [PMID: 34826448 DOI: 10.1016/j.chemosphere.2021.132981] [Citation(s) in RCA: 21] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/19/2021] [Revised: 11/14/2021] [Accepted: 11/17/2021] [Indexed: 06/13/2023]
Abstract
Polycyclic aromatic hydrocarbons (PAHs) are carcinogenic environmental pollutants that are extremely hydrophobic in nature and resistant to biological degradation. Extraction of PAHs from environmental matrices is the first and most crucial step in PAH quantification. Extraction followed by quantification is essential to understand the extent of contamination prior to the application of remediation approaches. Due to their non-polar structures, PAHs can be adsorbed tightly to the organic matter in soils and sediments, making them more difficult to be extracted. Extraction of PAHs can be achieved by a variety of methods. Techniques such as supercritical and subcritical fluid extraction, microwave-assisted solvent extraction, plant oil-assisted extraction and some microextraction techniques provide faster PAH extraction using less organic solvents, while providing a more environmentally friendly and safer process with minimum matrix interferences. More recently, more environmentally friendly methods for soil and sediment remediation have been explored. This often involves using natural chemicals, such as biosurfactants, to solubilize PAHs in contaminated soils and sediments to allow subsequent microbial degradation. Vermiremediation and microbial enzyme-mediated remediation are emerging approaches, which require further development. The following summarises the existing literature on traditional PAH extraction and bioremediation methods and contrasts them to newer, more environmentally friendly ways.
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Affiliation(s)
- Thiloka Kariyawasam
- School of Agricultural, Environmental and Veterinary Sciences, Charles Sturt University, Wagga Wagga, NSW, 2678, Australia; Institute for Land, Water and Society, Charles Sturt University, Albury, NSW, 2702, Australia
| | - Gregory S Doran
- School of Agricultural, Environmental and Veterinary Sciences, Charles Sturt University, Wagga Wagga, NSW, 2678, Australia; Graham Centre for Agricultural Innovation, Charles Sturt University, Wagga Wagga, NSW, 2678, Australia.
| | - Julia A Howitt
- School of Agricultural, Environmental and Veterinary Sciences, Charles Sturt University, Wagga Wagga, NSW, 2678, Australia; Institute for Land, Water and Society, Charles Sturt University, Albury, NSW, 2702, Australia
| | - Paul D Prenzler
- School of Agricultural, Environmental and Veterinary Sciences, Charles Sturt University, Wagga Wagga, NSW, 2678, Australia; Graham Centre for Agricultural Innovation, Charles Sturt University, Wagga Wagga, NSW, 2678, Australia
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Li Y, Ma J, Li Y, Xiao C, Shen X, Chen J, Xia X. Nitrogen addition facilitates phytoremediation of PAH-Cd cocontaminated dumpsite soil by altering alfalfa growth and rhizosphere communities. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 806:150610. [PMID: 34597578 DOI: 10.1016/j.scitotenv.2021.150610] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/04/2021] [Revised: 09/22/2021] [Accepted: 09/22/2021] [Indexed: 06/13/2023]
Abstract
Thousands of unlined landfills and open dumpsites seriously threatened the safety of soil and groundwater due to leachate leakage with a mass of pollutants, particularly heavy metals, organic contaminants and ammonia. Phytoremediation is widely used in the treatment of cocontaminated soils because it is cost-effective and environmentally friendly. However, the extent to which phytoremediation efficiency and plant physiological responses are affected by the high nitrogen (N) content in such cocontaminated soil is still uncertain. Here, pot experiments were conducted to investigate the effects of N addition on the applicability of legume alfalfa remediation for polycyclic aromatic hydrocarbon‑cadmium (PAHCd) co-/contaminated soil and the corresponding microbial regulation mechanism. The results showed that the PAH dissipation rates and Cd removal rates in the high-contamination groups increased with the external N supply, among which the pyrene dissipation rates in the cocontaminated soil was elevated most significantly, from 78.10% to 87.25%. However, the phytoremediation efficiency weakened in low cocontaminated soil, possibly because the excessive N content had inhibitory effects on the rhizobium Ensifer and restrained alfalfa growth. Furthermore, the relative abundance of PAH-degrading bacteria in the rhizosphere dominated PAH dissipation. As reflected by principal coordinate analysis (PCoA) analysis and hierarchical dendrograms, the microbial community composition changed with N addition, and a more pronounced shift was found in the rhizosphere relative to the endosphere or shoots of alfalfa. This study will provide a theoretical basis for legume plant remediation of dumpsites as well as soil contaminated with multiple pollutants.
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Affiliation(s)
- Yijia Li
- State Key Laboratory of Water Environment Simulation, School of Environment, Beijing Normal University, No. 19, Xinjiekouwai Street, HaiDian District, Beijing 100875, PR China.
| | - Junwei Ma
- State Key Laboratory of Water Environment Simulation, School of Environment, Beijing Normal University, No. 19, Xinjiekouwai Street, HaiDian District, Beijing 100875, PR China.
| | - Yuqian Li
- State Key Laboratory of Water Environment Simulation, School of Environment, Beijing Normal University, No. 19, Xinjiekouwai Street, HaiDian District, Beijing 100875, PR China.
| | - Chen Xiao
- State Key Laboratory of Water Environment Simulation, School of Environment, Beijing Normal University, No. 19, Xinjiekouwai Street, HaiDian District, Beijing 100875, PR China.
| | - Xinyi Shen
- State Key Laboratory of Water Environment Simulation, School of Environment, Beijing Normal University, No. 19, Xinjiekouwai Street, HaiDian District, Beijing 100875, PR China.
| | - Jiajun Chen
- State Key Laboratory of Water Environment Simulation, School of Environment, Beijing Normal University, No. 19, Xinjiekouwai Street, HaiDian District, Beijing 100875, PR China.
| | - Xinghui Xia
- State Key Laboratory of Water Environment Simulation, School of Environment, Beijing Normal University, No. 19, Xinjiekouwai Street, HaiDian District, Beijing 100875, PR China.
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Wang X, Teng Y, Ren W, Han Y, Wang X, Li X. Soil bacterial diversity and functionality are driven by plant species for enhancing polycyclic aromatic hydrocarbons dissipation in soils. THE SCIENCE OF THE TOTAL ENVIRONMENT 2021; 797:149204. [PMID: 34346367 DOI: 10.1016/j.scitotenv.2021.149204] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/05/2021] [Revised: 07/13/2021] [Accepted: 07/18/2021] [Indexed: 05/27/2023]
Abstract
Plant-microorganisms symbiosis has been widely used in developing strategies for the rhizoremediation of polycyclic aromatic hydrocarbon (PAHs) contaminated agricultural soils. However, understanding the potential mechanisms for using complex plant-microbe interactions to enhance rhizoremediation in contaminated soils is still limited. In this study, rhizosphere microbiomes were established by cultivating four types of cover crops for 15 months in a PAHs-contaminated field. The results showed that the PAHs removal rates were significantly higher in rhizosphere soils (55.2-82.3%) than the bare soils (20.5%). Of the four cover crops, the rhizosphere soils associated with the alfalfa and clover had higher removal rates for high molecular weight (HMW) PAHs (78.5-87.1%) than the grasses (39.0-46.2%). High-throughput sequencing analysis showed that bacterial community structure between the planted and bare soils, and among four cover crops rhizosphere soils were significantly different. The rhizosphere soils associated with the alfalfa and clover had more abundant degradation-related taxa. Correlation network analysis showed that bacterial communities with high removal rates have stronger interactions. Metagenome analysis indicated that the relative abundance of the key functional genes involved in PAHs degradation and nutrient metabolisms were significantly higher in rhizosphere soils, especially for alfalfa and clover. Overall, this study provides new insights for us to understand the mechanisms by different plants enhancing PAHs dissipation from the viewpoint of microbiology.
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Affiliation(s)
- Xia Wang
- Key Laboratory of Soil Environment and Pollution Remediation, Institute of Soil Science, Chinese Academy of Sciences, Nanjing 210008, China; University of the Chinese Academy of Sciences, Beijing, 100049, China
| | - Ying Teng
- Key Laboratory of Soil Environment and Pollution Remediation, Institute of Soil Science, Chinese Academy of Sciences, Nanjing 210008, China.
| | - Wenjie Ren
- Key Laboratory of Soil Environment and Pollution Remediation, Institute of Soil Science, Chinese Academy of Sciences, Nanjing 210008, China
| | - Yujuan Han
- Key Laboratory of Soil Environment and Pollution Remediation, Institute of Soil Science, Chinese Academy of Sciences, Nanjing 210008, China
| | - Xiaomi Wang
- Key Laboratory of Soil Environment and Pollution Remediation, Institute of Soil Science, Chinese Academy of Sciences, Nanjing 210008, China
| | - Xiufen Li
- Department of Plant Pathology, Washington State University, Pullman, WA 99164, USA
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Kumar M, Bolan NS, Hoang SA, Sawarkar AD, Jasemizad T, Gao B, Keerthanan S, Padhye LP, Singh L, Kumar S, Vithanage M, Li Y, Zhang M, Kirkham MB, Vinu A, Rinklebe J. Remediation of soils and sediments polluted with polycyclic aromatic hydrocarbons: To immobilize, mobilize, or degrade? JOURNAL OF HAZARDOUS MATERIALS 2021; 420:126534. [PMID: 34280720 DOI: 10.1016/j.jhazmat.2021.126534] [Citation(s) in RCA: 105] [Impact Index Per Article: 35.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/10/2021] [Revised: 06/09/2021] [Accepted: 06/26/2021] [Indexed: 05/22/2023]
Abstract
Polycyclic aromatic hydrocarbons (PAHs) are generated due to incomplete burning of organic substances. Use of fossil fuels is the primary anthropogenic cause of PAHs emission in natural settings. Although several PAH compounds exist in the natural environmental setting, only 16 of these compounds are considered priority pollutants. PAHs imposes several health impacts on humans and other living organisms due to their carcinogenic, mutagenic, or teratogenic properties. The specific characteristics of PAHs, such as their high hydrophobicity and low water solubility, influence their active adsorption onto soils and sediments, affecting their bioavailability and subsequent degradation. Therefore, this review first discusses various sources of PAHs, including source identification techniques, bioavailability, and interactions of PAHs with soils and sediments. Then this review addresses the remediation technologies adopted so far of PAHs in soils and sediments using immobilization techniques (capping, stabilization, dredging, and excavation), mobilization techniques (thermal desorption, washing, electrokinetics, and surfactant assisted), and biological degradation techniques. The pros and cons of each technology are discussed. A detailed systematic compilation of eco-friendly approaches used to degrade PAHs, such as phytoremediation, microbial remediation, and emerging hybrid or integrated technologies are reviewed along with case studies and provided prospects for future research.
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Affiliation(s)
- Manish Kumar
- CSIR-National Environmental Engineering Research Institute (CSIR-NEERI), Nehru Marg, Nagpur 440020, Maharashtra, India
| | - Nanthi S Bolan
- School of Agriculture and Environment, The University of Western Australia, Perth WA 6001, Australia; The UWA Institute of Agriculture, The University of Western Australia, Perth, WA 6001, Australia; College of Engineering, Science and Environment, University of Newcastle, Callaghan NSW, 2308, Australia
| | - Son A Hoang
- College of Engineering, Science and Environment, University of Newcastle, Callaghan NSW, 2308, Australia
| | - Ankush D Sawarkar
- Department of Computer Science and Engineering, Visvesvaraya National Institute of Technology (VNIT), Nagpur, Maharashtra, 440 010, India
| | - Tahereh Jasemizad
- Department of Civil and Environmental Engineering, Faculty of Engineering, The University of Auckland, Auckland 1010, New Zealand
| | - Bowen Gao
- Key Laboratory of Water and Sediment Sciences of Ministry of Education, State Key Laboratory of Water Environment Simulation, School of Environment, Beijing Normal University, Beijing 100875, China
| | - S Keerthanan
- Ecosphere Resilience Research Center, Faculty of Applied Sciences, University of Sri Jayewardenepura, Nugegoda 10250, Sri Lanka
| | - Lokesh P Padhye
- Department of Civil and Environmental Engineering, Faculty of Engineering, The University of Auckland, Auckland 1010, New Zealand
| | - Lal Singh
- CSIR-National Environmental Engineering Research Institute (CSIR-NEERI), Nehru Marg, Nagpur 440020, Maharashtra, India
| | - Sunil Kumar
- CSIR-National Environmental Engineering Research Institute (CSIR-NEERI), Nehru Marg, Nagpur 440020, Maharashtra, India
| | - Meththika Vithanage
- Ecosphere Resilience Research Center, Faculty of Applied Sciences, University of Sri Jayewardenepura, Nugegoda 10250, Sri Lanka
| | - Yang Li
- Department of Environmental Engineering, China Jiliang University, Zhejiang, Hangzhou 310018, China
| | - Ming Zhang
- Department of Environmental Engineering, China Jiliang University, Zhejiang, Hangzhou 310018, China
| | - M B Kirkham
- Department of Agronomy, Kansas State University, Manhattan, KS, United States of America
| | - Ajayan Vinu
- Global Innovative Centre for Advanced Nanomaterials, School of Engineering, The University of Newcastle, Callaghan, NSW, 2308, Australia
| | - Jörg Rinklebe
- University of Wuppertal, School of Architecture and Civil Engineering, Institute of Foundation Engineering, Water- and Waste Management, Laboratory of Soil- and Groundwater Management, Pauluskirchstraße 7, 42285 Wuppertal, Germany; Department of Environment, Energy and Geoinformatics, Sejong University, Seoul 05006, Republic of Korea.
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18
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Ummara U, Noreen S, Afzal M, Ahmad P. Bacterial bioaugmentation enhances hydrocarbon degradation, plant colonization and gene expression in diesel-contaminated soil. PHYSIOLOGIA PLANTARUM 2021; 173:58-66. [PMID: 32691441 DOI: 10.1111/ppl.13171] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/21/2020] [Revised: 06/23/2020] [Accepted: 07/10/2020] [Indexed: 05/27/2023]
Abstract
Environmental contamination by hydrocarbons is a major problem, and hydrocarbon accumulation in soil poses hazardous threat to ecosystems. Phytoremediation, which involves plants, is an encouraging technique for the removal of hydrocarbons from polluted soil and water. The purpose of this investigation was to examine whether bacterial inoculation enhanced the phytoremediation of hydrocarbons in diesel-contaminated soil vegetated with maize (Zea mays L.). The two cultivars of maize, MMRI Yellow and Pearl White, were planted in diesel-polluted soil (0, 1.5, 2.5, and 3.5 g diesel kg-1 soil), and inoculated with the consortium of three alkane-degrading bacterial strains, Arthrobacter oxydans ITRH49, Pseudomonas sp. ITRI73 and Pseudomonas sp. MixRI75. Bacterial inoculation enhanced plant growth and hydrocarbon degradation. Between two cultivars, MMRI Yellow showed better growth and hydrocarbon degradation in the presence and absence of bacterial inoculation. Maximum hydrocarbon degradation (80%) was observed in the soil having minimum concentration of diesel (1.5 g kg-1 soil), and vegetated with bacterial inoculated MMRI Yellow maize cultivar. Furthermore, more bacterial colonization, and abundance and expression of the alkane hydroxylase gene (alkB) were observed in the root interior than in the rhizosphere and shoot interior of the plants. The bacteria-mediated phytoremediation of soil contaminated with hydrocarbons suggested that the collective use of plants and bacteria was the most beneficial approach for the reclamation of diesel-contaminated soil in comparison with vegetation alone.
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Affiliation(s)
- Ume Ummara
- Institute of Pure and Applied Biology, Bahauddin Zakariya University, Multan, Pakistan
| | - Sibgha Noreen
- Institute of Pure and Applied Biology, Bahauddin Zakariya University, Multan, Pakistan
| | - Muhammad Afzal
- National Institute of Biotechnology and Genetic Engineering (NIBGE), Faisalabad, Pakistan
| | - Parvaiz Ahmad
- Botany and Microbiology Department, College of Science, King Saud University, Riyadh, Saudi Arabia
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19
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Gabriele I, Race M, Papirio S, Esposito G. Phytoremediation of pyrene-contaminated soils: A critical review of the key factors affecting the fate of pyrene. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2021; 293:112805. [PMID: 34051532 DOI: 10.1016/j.jenvman.2021.112805] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/06/2021] [Revised: 04/15/2021] [Accepted: 05/15/2021] [Indexed: 06/12/2023]
Abstract
Soil contamination by pyrene has increased over the years due to human-related activities, urgently demanding for remediation approaches to ensure human and environment safety. Within this frame, phytoremediation has been successfully applied over the years due to its green and cost-effectiveness features. The scope of this review includes the main phytoremediation mechanisms correlated with the removal of pyrene from contaminated soils and sediments to highlight the impact of different parameters and the supplement of additives on the efficiency of the treatment. Soil organic matter (SOM), plant species, aging time, environmental parameters (pH, soil oxygenation, and temperature) and bioavailability are among the main parameters affecting pyrene removal through phytoremediation. Phytoextraction only accounts for a small part of the entire phytoremediation process, but the addition of surfactants and chelating agents in planted soils could increase pyrene accumulation in plant tissues by 20% as a consequence of the increased pyrene bioavailability. Rhizodegradation is the main phytoremediation mechanism involved due to the activity of bacteria capable of degrading pyrene in the root area. Inoculated-planted soil treatments have the potential to decrease pyrene accumulation in shoots and roots by approximately 30 and 40%, respectively, further stimulating the proliferation of pyrene-degrading bacteria in the rhizosphere. Plant-fungi symbiotic association results in an enhanced accumulation of pyrene in shoots and roots of plants as well as a higher biodegradation. Finally, pyrene removal from soil can be improved in the presence of amendments, such as natural non-ionic surfactants, biochar, and bacterial mixtures.
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Affiliation(s)
- Ilaria Gabriele
- Department of Civil and Mechanical Engineering, University of Cassino and Southern Lazio, Via Di Biasio 43, 03043, Cassino, Italy.
| | - Marco Race
- Department of Civil and Mechanical Engineering, University of Cassino and Southern Lazio, Via Di Biasio 43, 03043, Cassino, Italy
| | - Stefano Papirio
- Department of Civil, Architectural and Environmental Engineering, University of Napoli Federico II, Via Claudio 21, 80125, Napoli, Italy
| | - Giovanni Esposito
- Department of Civil, Architectural and Environmental Engineering, University of Napoli Federico II, Via Claudio 21, 80125, Napoli, Italy
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Kiamarsi Z, Kafi M, Soleimani M, Nezami A, Lutts S. Evaluating the bio-removal of crude oil by vetiver grass ( Vetiveria zizanioides L.) in interaction with bacterial consortium exposed to contaminated artificial soils. INTERNATIONAL JOURNAL OF PHYTOREMEDIATION 2021; 24:483-492. [PMID: 34340621 DOI: 10.1080/15226514.2021.1954876] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Remediation of crude oil-impacted areas is a major pervasive concern in various environmental conditions. The major aim of this study was to investigate the collaboration of vetiver grass (Vetiveria zizanioides L.) and petroleum hydrocarbon-degrading bacteria to clean up contaminated soils. Vetiver grass and five native bacterial isolates were used in one consortium to remediate contaminated soil by crude oil at various concentrations (2.0, 4.0, 6.0 8.0, 10, and 12.0% woil/wsoil). The presence of isolated bacteria caused a significant (p < 0.05) increment of root-shoot ratio of vetiver in contaminated soils in comparison to non-contaminated soil. The combination of vetiver and bacterial consortium revealed efficient dissipation of more than 30% of low-molecular-weight polycyclic aromatic hydrocarbons (PAHs) and more than 50% of high-molecular-weight PAHs in all crude oil concentrations. The removal of n-alkanes in the simultaneous presence of the bacteria and plant was more than 70.0% at 10.0% of oil concentration, whereas the removals in control were 20.7, 13.7 and 9.2%, respectively. The hydrocarbons dissipation efficiency of applied treatments decreased at 12.0% of contamination. It is concluded that a combination of vetiver grass and the isolated bacteria could be a feasible strategy for remediation of crude oil-polluted soils. Novelty statementDetermination of the responses of vetiver grass under different crude oil concentrations is one of the novelties of the present study, which is helpful for demonstrating plant tolerance on polluted environments. Also, it adds information about the potential of this grass to clean up crude oil-polluted soils solely as well as in the presence of promising selected bacterial strains.
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Affiliation(s)
- Zahra Kiamarsi
- Department of Agrotechnology, Faculty of Agriculture, Ferdowsi University of Mashhad, Mashhad, Iran
| | - Mohammad Kafi
- Department of Agrotechnology, Faculty of Agriculture, Ferdowsi University of Mashhad, Mashhad, Iran
| | - Mohsen Soleimani
- Department of Natural Resources, Isfahan University of Technology, Isfahan, Iran
| | - Ahmad Nezami
- Department of Agrotechnology, Faculty of Agriculture, Ferdowsi University of Mashhad, Mashhad, Iran
| | - Stanley Lutts
- Life Sciences Institute, Catholic University of Louvain, Louvain-la-Neuve, Belgium
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Gómez-Sagasti MT, Garbisu C, Urra J, Míguez F, Artetxe U, Hernández A, Vilela J, Alkorta I, Becerril JM. Mycorrhizal-Assisted Phytoremediation and Intercropping Strategies Improved the Health of Contaminated Soil in a Peri-Urban Area. FRONTIERS IN PLANT SCIENCE 2021; 12:693044. [PMID: 34276742 PMCID: PMC8283827 DOI: 10.3389/fpls.2021.693044] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/09/2021] [Accepted: 05/19/2021] [Indexed: 06/13/2023]
Abstract
Soils of abandoned and vacant lands in the periphery of cities are frequently subjected to illegal dumping and can undergo degradation processes such as depletion of organic matter and nutrients, reduced biodiversity, and the presence of contaminants, which may exert an intense abiotic stress on biological communities. Mycorrhizal-assisted phytoremediation and intercropping strategies are highly suitable options for remediation of these sites. A two-year field experiment was conducted at a peri-urban site contaminated with petroleum hydrocarbons and polychlorinated biphenyls, to assess the effects of plant growth (spontaneous plant species, Medicago sativa, and Populus × canadensis, alone vs. intercropped) and inoculation of a commercial arbuscular mycorrhizal and ectomycorrhizal inoculum. Contaminant degradation, plant performance, and biodiversity, as well as a variety of microbial indicators of soil health (microbial biomass, activity, and diversity parameters) were determined. The rhizosphere bacterial and fungal microbiomes were assessed by measuring the structural diversity and composition via amplicon sequencing. Establishment of spontaneous vegetation led to greater plant and soil microbial diversity. Intercropping enhanced the activity of soil enzymes involved in nutrient cycling. The mycorrhizal treatment was a key contributor to the establishment of intercropping with poplar and alfalfa. Inoculated and poplar-alfalfa intercropped soils had a higher microbial abundance than soils colonized by spontaneous vegetation. Our study provided evidence of the potential of mycorrhizal-assisted phytoremediation and intercropping strategies to improve soil health in degraded peri-urban areas.
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Affiliation(s)
| | - Carlos Garbisu
- Department of Conservation of Natural Resources, NEIKER, Basque Research and Technology Alliance (BRTA), Derio, Spain
| | - Julen Urra
- Department of Conservation of Natural Resources, NEIKER, Basque Research and Technology Alliance (BRTA), Derio, Spain
| | - Fátima Míguez
- Department of Plant Biology and Ecology, University of the Basque Country (UPV/EHU), Leioa, Spain
| | - Unai Artetxe
- Department of Plant Biology and Ecology, University of the Basque Country (UPV/EHU), Leioa, Spain
| | - Antonio Hernández
- Department of Plant Biology and Ecology, University of the Basque Country (UPV/EHU), Leioa, Spain
| | - Juan Vilela
- Centro de Estudios Ambientales, Vitoria-Gasteiz, Spain
| | - Itziar Alkorta
- Department of Biochemistry and Molecular Biology, University of the Basque Country (UPV/EHU), Leioa, Spain
| | - José M. Becerril
- Department of Plant Biology and Ecology, University of the Basque Country (UPV/EHU), Leioa, Spain
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Haider FU, Ejaz M, Cheema SA, Khan MI, Zhao B, Liqun C, Salim MA, Naveed M, Khan N, Núñez-Delgado A, Mustafa A. Phytotoxicity of petroleum hydrocarbons: Sources, impacts and remediation strategies. ENVIRONMENTAL RESEARCH 2021; 197:111031. [PMID: 33744268 DOI: 10.1016/j.envres.2021.111031] [Citation(s) in RCA: 32] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/03/2021] [Revised: 03/09/2021] [Accepted: 03/12/2021] [Indexed: 06/12/2023]
Abstract
Extraction and exploration of petroleum hydrocarbons (PHs) to satisfy the rising world population's fossil fuel demand is playing havoc with human beings and other life forms by contaminating the ecosystem, particularly the soil. In the current review, we highlighted the sources of PHs contamination, factors affecting the PHs accumulation in soil, mechanisms of uptake, translocation and potential toxic effects of PHs on plants. In plants, PHs reduce the seed germination andnutrients translocation, and induce oxidative stress, disturb the plant metabolic activity and inhibit the plant physiology and morphology that ultimately reduce plant yield. Moreover, the defense strategy in plants to mitigate the PHs toxicity and other potential remediation techniques, including the use of organic manure, compost, plant hormones, and biochar, and application of microbe-assisted remediation, and phytoremediation are also discussed in the current review. These remediation strategies not only help to remediate PHs pollutionin the soil rhizosphere but also enhance the morphological and physiological attributes of plant and results to improve crop yield under PHs contaminated soils. This review aims to provide significant information on ecological importance of PHs stress in various interdisciplinary investigations and critical remediation techniques to mitigate the contamination of PHs in agricultural soils.
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Affiliation(s)
- Fasih Ullah Haider
- College of Resources and Environmental Sciences, Gansu Agricultural University, Lanzhou, 730070, China; Gansu Provincial Key Lab of Arid-land Crop Science, Gansu Agricultural University, Lanzhou, 730070, China
| | - Mukkaram Ejaz
- School of Environmental and Municipal Engineering, Lanzhou Jiaotong University, Lanzhou, 730070, Gansu, PR China
| | - Sardar Alam Cheema
- Department of Agronomy, University of Agriculture, Faisalabad, 38000, Pakistan
| | - Muhammad Imran Khan
- Institute of Soil and Environmental Sciences, University of Agriculture, Faisalabad, 38040, Pakistan
| | - Baowei Zhao
- School of Environmental and Municipal Engineering, Lanzhou Jiaotong University, Lanzhou, 730070, Gansu, PR China
| | - Cai Liqun
- College of Resources and Environmental Sciences, Gansu Agricultural University, Lanzhou, 730070, China; Gansu Provincial Key Lab of Arid-land Crop Science, Gansu Agricultural University, Lanzhou, 730070, China.
| | | | - Muhammad Naveed
- Institute of Soil and Environmental Sciences, University of Agriculture, Faisalabad, 38040, Pakistan
| | - Naeem Khan
- Department of Agronomy, Institute of Food and Agricultural Sciences, University of Florida, Gainesville, 12 FL 32611, USA
| | - Avelino Núñez-Delgado
- Depart. Soil Sci. and Agric. Chem., Engineering Polytech. School, Lugo, Univ. Santiago de Compostela, Spain
| | - Adnan Mustafa
- National Engineering Laboratory for Improving Quality of Arable Land, Institute of Agricultural Resources and Regional Planning, Chinese Academy of Agricultural Sciences, Beijing, 100081, PR China.
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23
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Niu H, Leng Y, Li X, Yu Q, Wu H, Gong J, Li H, Chen K. Behaviors of cadmium in rhizosphere soils and its interaction with microbiome communities in phytoremediation. CHEMOSPHERE 2021; 269:128765. [PMID: 33143888 DOI: 10.1016/j.chemosphere.2020.128765] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/14/2020] [Revised: 10/12/2020] [Accepted: 10/25/2020] [Indexed: 06/11/2023]
Abstract
Phytoremediation of cadmium (Cd) contaminated soils by accumulators or hyperaccumulators has received considerable attention. However, there is still limited information about its migration, dynamic characteristics, and interaction with microbial communities in rhizosphere. In this study, the behaviors of Cd in rhizosphere soils in phytoremediation were carefully studied and illustrated. We find that the migration rate of Cd in rhizosphere is higher than the absorption rate of Cd by roots of plants, and Cd in near-rhizosphere moves sluggishly, and near-rhizosphere soils forms a mass pool of Cd for absorption by plants. Additionally, in tall fescue and Indian mustard treatments, shoot biomasses, total extracted Cd and migration rate of Cd in near-rhizosphere soils were comparable. It suggests that shoot biomasses of plants significantly affect their extraction of heavy metals from rhizosphere soils. Biomasses of bacteria significantly increased after phytoremediation, and structures of microbiome communities of soils after phytoremediation reassembled significantly. Furthermore, Indian mustard, even with relative lower root biomasses, could better reassembled the microbiome communities in rhizosphere than tall fescue which possesses a higher developed root system. In the end, analyses of functional microorganisms in rhizosphere soils provide new insights into biological and physiochemical roles of these populations in phytoremediation.
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Affiliation(s)
- Hong Niu
- College of Resources and Environmental Science, Key Laboratory of Catalysis and Energy Materials Chemistry of Ministry of Education & Hubei Key Laboratory of Catalysis and Materials Science, South-Central University for Nationalities, Wuhan, PR China
| | - YiFei Leng
- School of Civil Engineering, Architecture and Environment, Hubei University of Technology, Wuhan, 430068, PR China
| | - Xuecheng Li
- College of Resources and Environmental Science, Key Laboratory of Catalysis and Energy Materials Chemistry of Ministry of Education & Hubei Key Laboratory of Catalysis and Materials Science, South-Central University for Nationalities, Wuhan, PR China
| | - Qian Yu
- College of Resources and Environmental Science, Key Laboratory of Catalysis and Energy Materials Chemistry of Ministry of Education & Hubei Key Laboratory of Catalysis and Materials Science, South-Central University for Nationalities, Wuhan, PR China
| | - Hang Wu
- College of Resources and Environmental Science, Key Laboratory of Catalysis and Energy Materials Chemistry of Ministry of Education & Hubei Key Laboratory of Catalysis and Materials Science, South-Central University for Nationalities, Wuhan, PR China
| | - Junchao Gong
- College of Resources and Environmental Science, Key Laboratory of Catalysis and Energy Materials Chemistry of Ministry of Education & Hubei Key Laboratory of Catalysis and Materials Science, South-Central University for Nationalities, Wuhan, PR China
| | - HaoLin Li
- College of Resources and Environmental Science, Key Laboratory of Catalysis and Energy Materials Chemistry of Ministry of Education & Hubei Key Laboratory of Catalysis and Materials Science, South-Central University for Nationalities, Wuhan, PR China
| | - Ke Chen
- College of Resources and Environmental Science, Key Laboratory of Catalysis and Energy Materials Chemistry of Ministry of Education & Hubei Key Laboratory of Catalysis and Materials Science, South-Central University for Nationalities, Wuhan, PR China.
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24
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Singha LP, Pandey P. Rhizosphere assisted bioengineering approaches for the mitigation of petroleum hydrocarbons contamination in soil. Crit Rev Biotechnol 2021; 41:749-766. [PMID: 33626996 DOI: 10.1080/07388551.2021.1888066] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
The high demand for petroleum oil has led to hydrocarbon contamination in soil, including agricultural lands, and many other ecosystems across the globe. Physical and chemical treatments are effective strategies for the removal of high contamination levels and are useful for small areas, although with concerns of cost-effectiveness. Alternatively, several bacteria belonging to the Phylum: Proteobacteria, Bacteroidetes, Actinobacteria, Nocardioides, or Firmicutes are used for biodegradation of different hydrocarbons - aliphatic, polyaromatic hydrocarbons (PAH), and asphaltenes in the oil-contaminated soil. The rhizoremediation strategy with plant-microbe interactions has prospects to achieve the desired result in the field conditions. However, adequate biostimulation, and bioaugmentation with the suitable plant-microbe combination, and efficiency under a toxic environment needs to be evaluated. Modifying the microbiomes to achieve better biodegradation of contaminants is an upcoming strategy popularly known as microbiome engineering. In this review, rhizoremediation for the successful removal of the hydrocarbons have been critically discussed, with challenges for making it a feasible technology.HIGHLIGHTSPetroleum hydrocarbon contamination has increased around the globe.Rhizoremediation has the potential for the mitigation of pollutants from the contaminated sites.An accurate and detailed analysis of the physio-chemical and climatic conditions of the contaminated sites must be focused on.The suitable plant and bacteria, with other major considerations, may be employed for in-situ remediation.The appropriate data should be obtained using the omics approach to help toward the success of the rhizoremediation strategy.
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Affiliation(s)
| | - Piyush Pandey
- Department of Microbiology, Assam University, Silchar, India
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25
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Massot F, Gkorezis P, Van Hamme J, Marino D, Trifunovic BS, Vukovic G, d'Haen J, Pintelon I, Giulietti AM, Merini L, Vangronsveld J, Thijs S. Isolation, Biochemical and Genomic Characterization of Glyphosate Tolerant Bacteria to Perform Microbe-Assisted Phytoremediation. Front Microbiol 2021; 11:598507. [PMID: 33519737 PMCID: PMC7840833 DOI: 10.3389/fmicb.2020.598507] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2020] [Accepted: 12/17/2020] [Indexed: 11/16/2022] Open
Abstract
The large-scale use of the herbicide glyphosate leads to growing ecotoxicological and human health concerns. Microbe-assisted phytoremediation arises as a good option to remove, contain, or degrade glyphosate from soils and waterbodies, and thus avoid further spreading to non-target areas. To achieve this, availability of plant-colonizing, glyphosate-tolerant and -degrading strains is required and at the same time, it must be linked to plant-microorganism interaction studies focusing on a substantive ability to colonize the roots and degrade or transform the herbicide. In this work, we isolated bacteria from a chronically glyphosate-exposed site in Argentina, evaluated their glyphosate tolerance using the minimum inhibitory concentration assay, their in vitro degradation potential, their plant growth-promotion traits, and performed whole genome sequencing to gain insight into the application of a phytoremediation strategy to remediate glyphosate contaminated agronomic soils. Twenty-four soil and root-associated bacterial strains were isolated. Sixteen could grow using glyphosate as the sole source of phosphorous. As shown in MIC assay, some strains tolerated up to 10000 mg kg–1 of glyphosate. Most of them also demonstrated a diverse spectrum of in vitro plant growth-promotion traits, confirmed in their genome sequences. Two representative isolates were studied for their root colonization. An isolate of Ochrobactrum haematophilum exhibited different colonization patterns in the rhizoplane compared to an isolate of Rhizobium sp. Both strains were able to metabolize almost 50% of the original glyphosate concentration of 50 mg l–1 in 9 days. In a microcosms experiment with Lotus corniculatus L, O. haematophilum performed better than Rhizobium, with 97% of glyphosate transformed after 20 days. The results suggest that L. corniculatus in combination with to O. haematophilum can be adopted for phytoremediation of glyphosate on agricultural soils. An effective strategy is presented of linking the experimental data from the isolation of tolerant bacteria with performing plant-bacteria interaction tests to demonstrate positive effects on the removal of glyphosate from soils.
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Affiliation(s)
- Francisco Massot
- Cátedra de Biotecnología, Departamento de Microbiología, Inmunología, Biotecnología y Genética, Facultad de Farmacia y Bioquímica, Universidad de Buenos Aires, Junín, Argentina.,Instituto de Nanobiotecnología (NANOBIOTEC), CONICET-Universidad de Buenos Aires, Junín, Argentina
| | - Panagiotis Gkorezis
- Environmental Biology, Centre for Environmental Sciences, Hasselt University, Diepenbeek, Belgium
| | - Jonathan Van Hamme
- Department of Biological Sciences, Thompson Rivers University, Kamloops, BC, Canada
| | - Damian Marino
- Centro de Investigaciones del Medio Ambiente, Facultad de Ciencias Exactas, Universidad Nacional de la Plata (UNLP), La Plata, Argentina
| | | | - Gorica Vukovic
- Department of Phytomedicine, Faculty of Agriculture, University of Belgrade, Belgrade, Serbia
| | - Jan d'Haen
- Institute for Materials Research (IMO-IMEC), Hasselt University, Diepenbeek, Belgium
| | - Isabel Pintelon
- Laboratory of Cell Biology and Histology, University of Antwerp, Antwerp, Belgium
| | - Ana María Giulietti
- Cátedra de Biotecnología, Departamento de Microbiología, Inmunología, Biotecnología y Genética, Facultad de Farmacia y Bioquímica, Universidad de Buenos Aires, Junín, Argentina.,Instituto de Nanobiotecnología (NANOBIOTEC), CONICET-Universidad de Buenos Aires, Junín, Argentina
| | | | - Jaco Vangronsveld
- Environmental Biology, Centre for Environmental Sciences, Hasselt University, Diepenbeek, Belgium.,Department of Plant Physiology and Biophysics, Faculty of Biology and Biotechnology, Maria Curie-Skłodowska University, Lublin, Poland
| | - Sofie Thijs
- Environmental Biology, Centre for Environmental Sciences, Hasselt University, Diepenbeek, Belgium
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26
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Hoang SA, Lamb D, Seshadri B, Sarkar B, Choppala G, Kirkham MB, Bolan NS. Rhizoremediation as a green technology for the remediation of petroleum hydrocarbon-contaminated soils. JOURNAL OF HAZARDOUS MATERIALS 2021; 401:123282. [PMID: 32634659 DOI: 10.1016/j.jhazmat.2020.123282] [Citation(s) in RCA: 58] [Impact Index Per Article: 19.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/18/2020] [Revised: 06/18/2020] [Accepted: 06/19/2020] [Indexed: 05/22/2023]
Abstract
Rhizoremediation is increasingly becoming a green and sustainable alternative to physico-chemical methods for remediation of contaminated environments through the utilization of symbiotic relationship between plants and their associated soil microorganisms in the root zone. The overall efficiency can be enhanced by identifying suitable plant-microbe combinations for specific contaminants and supporting the process with the application of appropriate soil amendments. This approach not only involves promoting the existing activity of plants and soil microbes, but also introduces an adequate number of microorganisms with specific catabolic activity. Here, we reviewed recent literature on the main mechanisms and key factors in the rhizoremediation process with a particular focus on soils contaminated with total petroleum hydrocarbon (TPH). We then discuss the potential of different soil amendments to accelerate the remediation efficiency based on biostimulation and bioaugmentation processes. Notwithstanding some successes in well-controlled environments, rhizoremediation of TPH under field conditions is still not widespread and considered less attractive than physico-chemical methods. We catalogued the major pitfalls of this remediation approach at the field scale in TPH-contaminated sites and, provide some applicable situations for the future successful use of in situ rhizoremediation of TPH-contaminated soils.
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Affiliation(s)
- Son A Hoang
- Global Centre for Environmental Remediation (GCER), Advanced Technology Centre (ATC) Building, Faculty of Science, The University of Newcastle, University Drive, Callaghan, NSW 2308, Australia; Division of Urban Infrastructural Engineering, Mien Trung University of Civil Engineering, Phu Yen 56000, Viet Nam
| | - Dane Lamb
- Global Centre for Environmental Remediation (GCER), Advanced Technology Centre (ATC) Building, Faculty of Science, The University of Newcastle, University Drive, Callaghan, NSW 2308, Australia
| | - Balaji Seshadri
- Global Centre for Environmental Remediation (GCER), Advanced Technology Centre (ATC) Building, Faculty of Science, The University of Newcastle, University Drive, Callaghan, NSW 2308, Australia
| | - Binoy Sarkar
- Lancaster Environment Centre, Lancaster University, Lancaster LA1 4YQ, United Kingdom
| | - Girish Choppala
- Global Centre for Environmental Remediation (GCER), Advanced Technology Centre (ATC) Building, Faculty of Science, The University of Newcastle, University Drive, Callaghan, NSW 2308, Australia
| | - M B Kirkham
- Department of Agronomy, Kansas State University, Manhattan, KS, United States
| | - Nanthi S Bolan
- Global Centre for Environmental Remediation (GCER), Advanced Technology Centre (ATC) Building, Faculty of Science, The University of Newcastle, University Drive, Callaghan, NSW 2308, Australia.
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27
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Terzaghi E, Alberti E, Raspa G, Zanardini E, Morosini C, Anelli S, Armiraglio S, Di Guardo A. A new dataset of PCB half-lives in soil: Effect of plant species and organic carbon addition on biodegradation rates in a weathered contaminated soil. THE SCIENCE OF THE TOTAL ENVIRONMENT 2021; 750:141411. [PMID: 32841806 DOI: 10.1016/j.scitotenv.2020.141411] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/01/2020] [Revised: 07/28/2020] [Accepted: 07/30/2020] [Indexed: 06/11/2023]
Abstract
This paper presents a new dataset of Polychlorinated Biphenyls (PCBs) half-lives in soil. Data were obtained from a greenhouse experiment performed with an aged contaminated soil under semi-field conditions, collected from a National Relevance Site (SIN) located in Northern Italy (SIN Brescia-Caffaro). Ten different treatments (combination of seven plant species and different soil conditions) were considered together with the respective controls (soil without plants). PCB concentration reduction in soil was measured over a period of 18 months to evaluate the ability of plants to stimulate the biodegradation of these compounds. Tall fescue, tall fescue cultivated together with pumpkin and tall fescue amended with compost reduced more than the 50% of the 79 measured PCB congeners, including the most chlorinated ones (octa to deca-PCBs). However, the data obtained showed that no plant species was uniquely responsible for the effective degradation of all isomeric classes and congeners. The obtained half-lives ranged from 1.3 to 5.6 years and were up to a factor of 8 lower compared to generic HL values reported in literature. This highlighted the importance of cultivation and plant-microbe interactions in speeding up the PCB biodegradation. This new dataset could contribute to substantially improve the predictions of soil remediation time, multimedia fate and the long-range transport of PCBs. Additionally, the half-lives obtained here can also be used in the evaluation of the food chain transfer of these chemicals, and finally the exposure and potential for effects on ecosystems.
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Affiliation(s)
- Elisa Terzaghi
- DiSAT, University of Insubria, Via Valleggio 11, Como, Italy
| | - Elena Alberti
- DiSAT, University of Insubria, Via Valleggio 11, Como, Italy
| | - Giuseppe Raspa
- DICMA, Sapienza University of Rome, Via Eudossiana 18, Rome, Italy
| | | | | | | | - Stefano Armiraglio
- Municipality of Brescia - Museum of Natural Sciences, Via Ozanam 4, Brescia, Italy
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Wang Y, Zhu S, Liu T, Guo B, Li F, Bai X. Identification of the rhizospheric microbe and metabolites that led by the continuous cropping of ramie (Boehmeria nivea L. Gaud). Sci Rep 2020; 10:20408. [PMID: 33230149 PMCID: PMC7683709 DOI: 10.1038/s41598-020-77475-3] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2020] [Accepted: 11/11/2020] [Indexed: 11/13/2022] Open
Abstract
Continuous cropping lowers the production and quality of ramie (Boehmeria nivea L. Gaud). This study aimed to reveal the metagenomic and metabolomic changes between the healthy- and obstacle-plant after a long period of continuous cropping. After 10 years of continuous cropping, ramie planted in some portions of the land exhibited weak growth and low yield (Obstacle-group), whereas, ramie planted in the other portion of the land grew healthy (Health-group). We collected rhizosphere soil and root samples from which measurements of soil chemical and plant physiochemical properties were taken. All samples were subjected to non-targeted gas chromatograph-mass spectrometer (GS/MS) metabolome analysis. Further, metagenomics was performed to analyze the functional genes in rhizospheric soil organisms. Based on the findings, ramie in Obstacle-group were characterized by shorter plant height, smaller stem diameter, and lower fiber production than that in Health-group. Besides, the Obstacle-group showed a lower relative abundance of Rhizobiaceae, Lysobacter antibioticus, and Bradyrhizobium japonicum, but a higher relative abundance of Azospirillum lipoferum and A. brasilense compared to the Health-group. Metabolomic analysis results implicated cysteinylglycine (Cys-Gly), uracil, malonate, and glycerol as the key differential metabolites between the Health- and Obstacle-group. Notably, this work revealed that bacteria such as Rhizobia potentially synthesize IAA and are likely to reduce the biotic stress of ramie. L. antibioticus also exerts a positive effect on plants in the fight against biotic stress and is mediated by metabolites including orthophosphate, uracil, and Cys-Gly, which may serve as markers for disease risk. These bacterial effects can play a key role in plant resistance to biotic stress via metabolic and methionine metabolism pathways.
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Affiliation(s)
- Yanzhou Wang
- Institute of Bast Fiber Crops, Chinese Academy of Agricultural Sciences, Changsha, 410205, Hunan, People's Republic of China
| | - Siyuan Zhu
- Institute of Bast Fiber Crops, Chinese Academy of Agricultural Sciences, Changsha, 410205, Hunan, People's Republic of China.
| | - Touming Liu
- Institute of Bast Fiber Crops, Chinese Academy of Agricultural Sciences, Changsha, 410205, Hunan, People's Republic of China
| | - Bing Guo
- Institute of Bast Fiber Crops, Chinese Academy of Agricultural Sciences, Changsha, 410205, Hunan, People's Republic of China
| | - Fu Li
- Institute of Bast Fiber Crops, Chinese Academy of Agricultural Sciences, Changsha, 410205, Hunan, People's Republic of China
| | - Xuehua Bai
- Institute of Bast Fiber Crops, Chinese Academy of Agricultural Sciences, Changsha, 410205, Hunan, People's Republic of China
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Vaidya BP, Hagmann DF, Balacco J, Passchier S, Krumins JA, Goodey NM. Plants mitigate restrictions to phosphatase activity in metal contaminated soils. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2020; 265:114801. [PMID: 32806404 DOI: 10.1016/j.envpol.2020.114801] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/20/2019] [Revised: 05/09/2020] [Accepted: 05/10/2020] [Indexed: 06/11/2023]
Abstract
Soil anthropogenic contaminants can limit enzymatic nutrient mineralization, either by direct regulation or via impacts on the microbial community, thus affecting plant growth in agricultural and non-agricultural soils. The impact on phosphatase activity of mixing two contaminated, post-industrial rail yard soils was investigated; one was vegetated and had high phosphatase function, the other was barren and had low enzymatic function. The two soils had different abiotic properties, including contaminant load, vegetation cover, soil aggregate size distribution, and phosphatase potential. An experimental gradient was established between the two soils to systematically vary the abiotic properties and microbial community composition of the two soils, creating a gradient of novel ecosystems. The time dependence of extracellular phosphatase activity, soil moisture, and organic matter content was assessed along this gradient in the presence and absence of plants. Initially, mixtures with higher percentages of functional, vegetated soil had higher phosphatase activities. Phosphatase activity remained unchanged through time (65 days) in all soil mixtures in unplanted pots, but it increased in planted pots. For example, in the presence of plants, phosphatase activity increased from 0.6 ± 0.1 to 2.4 ± 0.3 μmol•h-1•gdry soil-1 from day one to day 65 in the 1:1 functional:barren soil mixture. The presence of plants also promoted moisture retention. Inoculation of poorly functioning soil with 10% of the functional soil with its microbial community did not, over 65 days, revitalize the poorly functioning soil. The findings showed that abiotic limitations to enzymatic activity in barren brownfield soils could be mitigated by establishing primary production but not by the addition of enzymatically active microbial communities alone.
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Affiliation(s)
- Bhagyashree P Vaidya
- Department of Earth and Environmental Science, Montclair State University, Montclair, NJ, USA, 07043.
| | - Diane F Hagmann
- Department of Earth and Environmental Science, Montclair State University, Montclair, NJ, USA, 07043.
| | - Jennifer Balacco
- Department of Biology, Montclair State University, Montclair, NJ, USA, 07043.
| | - Sandra Passchier
- Department of Earth and Environmental Science, Montclair State University, Montclair, NJ, USA, 07043.
| | | | - Nina M Goodey
- Department of Chemistry and Biochemistry, Montclair State University, Montclair, NJ, 07043, USA; PSEG Institute of Sustainability Studies, Montclair State University, Montclair, NJ, 07043, USA.
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The Response of Red Clover ( Trifolium pratense L.) to Separate and Mixed Inoculations with Rhizobium leguminosarum and Azospirillum brasilense in Presence of Polycyclic Aromatic Hydrocarbons. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2020; 17:ijerph17165751. [PMID: 32784849 PMCID: PMC7460069 DOI: 10.3390/ijerph17165751] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/03/2020] [Revised: 07/31/2020] [Accepted: 08/06/2020] [Indexed: 11/20/2022]
Abstract
This study aimed to evaluate the impact of co-inoculation Rhizobium sp. and Azospirillum sp. on plant (Trifolium pratense L.) growth in the presence of polycyclic aromatic hydrocarbon (PAH) contamination (anthracene, phenanthrene, and pyrene). Eight strains from the genus Rhizobium leguminosarum bv. trifolii were selected for biotest analysis. Two methods of inoculation were used in the chamber experiment: (1) R. leguminosarum alone and (2) a combined inoculant (R. leguminosarum and Azospirillum brasilense). For comparison, non-contaminated controls were also used. The results demonstrated that co-inoculation of plants with Rhizobium and Azospirillum resulted in more root and shoot biomass than in plants inoculated with R. leguminosarum alone. The results indicated that application of a co-inoculation of bacteria from Rhizobium and Azospirillum species had a positive effect on clover nodulation and growth under the condition of PAH contamination.
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Jeelani N, Yang W, Zhu HL, An S. Phytoremediation for co-contaminated soils of cadmium and pyrene using Phragmites australis (common reed). INTERNATIONAL JOURNAL OF PHYTOREMEDIATION 2020; 22:1385-1395. [PMID: 32673058 DOI: 10.1080/15226514.2020.1780411] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Soil contamination is currently the most severe problem as it poses a toxicological impact on human health and ecosystems. A greenhouse experiment was carried out to investigate the effect of 20 and 40 mg kg-1 of cadmium (Cd) or 50 and 100 mg kg-1 of pyrene (PYR) and the combined effect of Cd-PYR on the growth of Phragmites australis together with the uptake and accumulation of Cd as well as removal of PYR. Results demonstrated that the single or co- contaminants of Cd and PYR did not affect plant growth relative to control treatments, except low Cd and high PYR treatment, which showed a significant increase in 91% biomass compared to the control. However, under the joint effect of Cd-PYR, P. australis was unwilling to uptake and translocate Cd, and bioconcentration factor (BCF) and translocation factor (TrF) values were less than one. The removal rate of PYR in the soils and soil enzymes was negatively impacted at the elevated Cd level in the soil. Our study shows that P. australis may have the potential for phytostabilization but cannot be useful for phytoextraction.
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Affiliation(s)
- Nasreen Jeelani
- School of Life Science, Nanjing University, Nanjing, PR China
- Nanjing University Ecological Research Institute of Changshu, Changshu, PR China
| | - Wen Yang
- College of Life Sciences, Shaanxi Normal University, Xi'an, PR China
| | - Hai-Liang Zhu
- School of Life Science, Nanjing University, Nanjing, PR China
| | - Shuqing An
- School of Life Science, Nanjing University, Nanjing, PR China
- Nanjing University Ecological Research Institute of Changshu, Changshu, PR China
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Temporal Evolution of PAHs Bioaccessibility in an Aged-Contaminated Soil during the Growth of Two Fabaceae. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2020; 17:ijerph17114016. [PMID: 32516924 PMCID: PMC7312443 DOI: 10.3390/ijerph17114016] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/17/2020] [Revised: 06/01/2020] [Accepted: 06/04/2020] [Indexed: 11/16/2022]
Abstract
Polycyclic aromatic hydrocarbons (PAHs) are health-concerning organic compounds that accumulate in the environment. Bioremediation and phytoremediation are studied to develop eco-friendly remediation techniques. In this study, the effects of two plants (Medicago sativa L. and Trifoliumpratense L.) on the PAHs’ bioaccessibility in an aged-contaminated soil throughout a long-term rhizoremediation trial was investigated. A bioaccessibility measurement protocol, using Tenax® beads, was adapted to the studied soil. The aged-contaminated soil was cultured with each plant type and compared to unplanted soil. The bioaccessible and residual PAH contents were quantified after 3, 6 and 12 months. The PAHs’ desorption kinetics were established for 15 PAHs and described by a site distribution model. A common Tenax® extraction time (24 h) was established as a comparison basis for PAHs bioaccessibility. The rhizoremediation results show that M. sativa developed better than T. pratense on the contaminated soil. When plants were absent (control) or small (T. pratense), the global PAHs’ residual contents dissipated from the rhizosphere to 8% and 10% of the total initial content, respectively. However, in the presence of M. sativa, dissipation after 12 months was only 50% of the total initial content. Finally, the PAHs’ bioaccessible content increased more significantly in the absence of plants. This one-year trial brought no evidence that the presence of M. sativa or T. pratense on this tested aged-contaminated soil was beneficial in the PAH remediation process, compared to unplanted soil.
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Terzaghi E, Vitale CM, Salina G, Di Guardo A. Plants radically change the mobility of PCBs in soil: Role of different species and soil conditions. JOURNAL OF HAZARDOUS MATERIALS 2020; 388:121786. [PMID: 31836368 DOI: 10.1016/j.jhazmat.2019.121786] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/28/2019] [Revised: 09/23/2019] [Accepted: 11/28/2019] [Indexed: 05/18/2023]
Abstract
The mobility of Polychlorinated Biphenyls (PCBs) in soil cultivated with different plant species was evaluated by means of a column experiment to investigate the specific plant influence on PCB environmental fate and the potential for leaching. The soil was collected at a National Relevance Site for remediation located in Northern Italy (SIN Brescia-Caffaro) and underwent a rhizoremediation treatment for 18 months with different plant species (Festuca arundinacea, Cucurbita pepo ssp pepo and Medicago sativa). The same but unplanted soil was also considered as control for comparison. The columns were leached with tap water and PCB concentrations were measured in the leachate after 7 days of soil/water contact. Soil previously cultivated with different plant species exhibited statistically different behavior in terms of chemical leaching among the different fractions. Total PCB bulk concentrations ranged from 24 to 219 ng/L. Leachate samples were enriched in tetra- to hepta-PCBs. While PCB concentrations in the dissolved phases varied within a factor of 2 between controls and treatments, PCB associated to particulate organic carbon (POC) differed by more than one order of magnitude. More specifically, Medicago sativa enriched the soil with POC doubling PCB leaching with respect to the other plant species and the unplanted controls.
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Affiliation(s)
- Elisa Terzaghi
- Department of Science and High Technology (DiSAT), University of Insubria, Via Valleggio 11, Como, Italy
| | - Chiara Maria Vitale
- Department of Science and High Technology (DiSAT), University of Insubria, Via Valleggio 11, Como, Italy
| | - Georgia Salina
- Department of Science and High Technology (DiSAT), University of Insubria, Via Valleggio 11, Como, Italy
| | - Antonio Di Guardo
- Department of Science and High Technology (DiSAT), University of Insubria, Via Valleggio 11, Como, Italy.
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Combined Effects of Compost and Medicago Sativa in Recovery a PCB Contaminated Soil. WATER 2020. [DOI: 10.3390/w12030860] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
The effectiveness of adding compost and the plant Medicago sativa in improving the quality of a soil historically contaminated by polychlorinated biphenyls (PCBs) was tested in greenhouse microcosms. Plant pots, containing soil samples from an area contaminated by PCBs, were treated with the compost and the plant, separately or together. Moreover, un-treated and un-planted microcosms were used as controls. At fixed times (1, 133 and 224 days), PCBs were analysed and the structure (cell abundance, phylogenetic characterization) and functioning (cell viability, dehydrogenase activity) of the natural microbial community were also measured. The results showed the effectiveness of the compost and plant in increasing the microbial activity, cell viability, and bacteria/fungi ratio, and in decreasing the amount of higher-chlorinated PCBs. Moreover, a higher number of α-Proteobacteria, one of the main bacterial groups involved in the degradation of PCBs, was found in the compost and plant co-presence.
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Xu C, Yang W, Wei L, Huang Z, Wei W, Lin A. Enhanced phytoremediation of PAHs-contaminated soil from an industrial relocation site by Ochrobactrum sp. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2020; 27:8991-8999. [PMID: 31321730 DOI: 10.1007/s11356-019-05830-7] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/25/2019] [Accepted: 06/24/2019] [Indexed: 06/10/2023]
Abstract
Nowadays, the remediation of polycyclic aromatic hydrocarbons (PAHs)-contaminated soil has received wide attention. In this work, Ochrobactrum sp. (PW) was isolated through selective enrichment from PAHs-contaminated soil in coking plant of Beijing, and the effects of PW on phytoremediation of that soil by alfalfa (Medicago sativa L.) and ryegrass (Lolium multiflorum Lam.) were investigated through pot experiments. Plant biomass, peroxidase (POD) activity, malondialdehyde (MDA) contents, soil enzyme activity (polyphenol oxidase and dehydrogenase activity), and residual concentration of PAHs in soils were determined to illustrate the ability of PW for enhancing the degradation of PAHs by plants. The results showed that the fresh weight of ryegrass and alfalfa inoculated with PW was significantly (p < 0.05) increased while the activity of POD and MDA contents were notably (p < 0.05) reduced than that without inoculation. Additionally, PW enhanced the activity of polyphenol oxidase and dehydrogenase in soil significantly (p < 0.05), and further enhanced the degradability of the system to PAHs. Different treatment methods could be ranked by the following order according to the degradability: SP (alfalfa + PW) > RP (ryegrass + PW) > PW (PW) > S (alfalfa) > R (ryegrass). The combined action of PW and alfalfa/ryegrass could accelerate the degradability of PAHs from soil contaminated by coking plants. PW could be used as potential bacteria to promote phytoremediation of the soil contaminated by PAHs.
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Affiliation(s)
- Congbin Xu
- College of Resources and Environment, University of Chinese Academy of Sciences, Beijing, 100049, People's Republic of China
- College of Chemical Engineering, Beijing University of Chemical Technology, Beijing, 100029, People's Republic of China
| | - Wenjie Yang
- Chinese Academy for Environmental Planning, Beijing, 100012, People's Republic of China
| | - Lianshuang Wei
- College of Chemical Engineering, Beijing University of Chemical Technology, Beijing, 100029, People's Republic of China
| | - Zeyu Huang
- School of International Education, Beijing University of Chemical Technology, Beijing, 100029, People's Republic of China
| | - Wenxia Wei
- Beijing Key Laboratory of Industrial Land Contamination and Remediation, Environmental Protection Research Institute of Light Industry, Beijing, 100089, People's Republic of China.
| | - Aijun Lin
- College of Chemical Engineering, Beijing University of Chemical Technology, Beijing, 100029, People's Republic of China.
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Lemmel F, Maunoury-Danger F, Leyval C, Cébron A. DNA stable isotope probing reveals contrasted activity and phenanthrene-degrading bacteria identity in a gradient of anthropized soils. FEMS Microbiol Ecol 2019; 95:5626340. [PMID: 31730156 DOI: 10.1093/femsec/fiz181] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2019] [Accepted: 11/13/2019] [Indexed: 11/13/2022] Open
Abstract
Polycyclic aromatic hydrocarbons (PAHs) are ubiquitous soil organic pollutants. Although PAH-degrading bacteria are present in almost all soils, their selection and enrichment have been shown in historically high PAH contaminated soils. We can wonder if the effectiveness of PAH biodegradation and the PAH-degrading bacterial diversity differ among soils. The stable isotope probing (SIP) technique with 13C-phenanthrene (PHE) as a model PAH was used to: (i) compare for the first time a range of 10 soils with various PAH contamination levels, (ii) determine their PHE-degradation efficiency and (iii) identify the active PHE-degraders using 16S rRNA gene amplicon sequencing from 13C-labeled DNA. Surprisingly, the PHE degradation rate was not directly correlated to the initial level of total PAHs and phenanthrene in the soils, but was mostly explained by the initial abundance and richness of soil bacterial communities. A large diversity of PAH-degrading bacteria was identified for seven of the soils, with differences among soils. In the soils where the PHE degradation activities were the higher, Mycobacterium species were always the dominant active PHE degraders. A positive correlation between PHE-degradation level and the diversity of active PHE-degraders (Shannon index) supported the hypothesis that cooperation between strains led to a more efficient PAH degradation.
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Affiliation(s)
- Florian Lemmel
- Université de Lorraine, CNRS, LIEC UMR7360, Faculté des Sciences et Technologies, Bd des Aiguillettes, BP70239, 54506 Vandoeuvre-les-Nancy, France
| | - Florence Maunoury-Danger
- Université de Lorraine, CNRS, LIEC UMR7360, Campus Bridoux, Avenue du général Delestraint, 57070 Metz, France
| | - Corinne Leyval
- Université de Lorraine, CNRS, LIEC UMR7360, Faculté des Sciences et Technologies, Bd des Aiguillettes, BP70239, 54506 Vandoeuvre-les-Nancy, France
| | - Aurélie Cébron
- Université de Lorraine, CNRS, LIEC UMR7360, Faculté des Sciences et Technologies, Bd des Aiguillettes, BP70239, 54506 Vandoeuvre-les-Nancy, France
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Jarujareet P, Nakkanong K, Luepromchai E, Suttinun O. Bioaugmentation coupled with phytoremediation for the removal of phenolic compounds and color from treated palm oil mill effluent. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2019; 26:32065-32079. [PMID: 31493076 DOI: 10.1007/s11356-019-06332-2] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/03/2019] [Accepted: 08/26/2019] [Indexed: 06/10/2023]
Abstract
The potential for coupling bioaugmentation with phytoremediation to simultaneously treat and utilize treated palm oil mill effluent (TPOME) in animal feed production was determined from a reduction in phenolic compounds and color in soil leachates, as well as from an increased yield of pasture grass. Two phenol-degrading bacteria-Methylobacterium sp. NP3 and Acinetobacter sp. PK1-were inoculated into the Brachiaria humidicola rhizosphere before the application of TPOME. A pot study showed that the soil with both grass and inoculated bacteria had the highest dephenolization and decolorization efficiencies, with a maximum capability of removing 70% from 587 mg total phenolic compounds added and 73% from 4438 color units during ten TPOME application cycles. The results corresponded to increases in the number of phenol-degrading bacteria and the grass yield. In a field study, this treatment was able to remove 46% from 21,453 mg total phenolic compounds added, with a maximum color removal efficiency of 52% from 5105 color units, while the uninoculated plots removed about 24-39% and 29-46% of phenolic compounds and color, respectively. The lower treatment performance was probably due to the increased TPOME concentrations. Based on the amounts of phenolic compounds, protein, and crude fiber in the grass biomass, the inoculated TPOME-treated grass had a satisfactory nutritional quality and digestibility for use as animal feed.
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Affiliation(s)
- Palist Jarujareet
- Environmental Assessment and Technology for Hazardous Waste Management Research Center, Faculty of Environmental Management, Prince of Songkla University, Songkhla, 90112, Thailand
| | - Korakot Nakkanong
- Department of Plant Science, Faculty of Natural Resources, Prince of Songkla University, Songkhla, 90112, Thailand
| | - Ekawan Luepromchai
- Microbial Technology for Marine Pollution Treatment Research Unit, Department of Microbiology, Faculty of Science, Chulalongkorn University, Bangkok, 10330, Thailand
- Center of Excellence on Hazardous Substance Management (HSM), Bangkok, 10330, Thailand
| | - Oramas Suttinun
- Environmental Assessment and Technology for Hazardous Waste Management Research Center, Faculty of Environmental Management, Prince of Songkla University, Songkhla, 90112, Thailand.
- Center of Excellence on Hazardous Substance Management (HSM), Bangkok, 10330, Thailand.
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Terzaghi E, Vergani L, Mapelli F, Borin S, Raspa G, Zanardini E, Morosini C, Anelli S, Nastasio P, Sale VM, Armiraglio S, Di Guardo A. Rhizoremediation of weathered PCBs in a heavily contaminated agricultural soil: Results of a biostimulation trial in semi field conditions. THE SCIENCE OF THE TOTAL ENVIRONMENT 2019; 686:484-496. [PMID: 31185397 DOI: 10.1016/j.scitotenv.2019.05.458] [Citation(s) in RCA: 37] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/18/2019] [Revised: 05/28/2019] [Accepted: 05/30/2019] [Indexed: 05/18/2023]
Abstract
This paper describes the results of a rhizoremediation greenhouse experiment planned to select the best plant species and soil management for the bioremediation of weathered polychlorinated biphenyls (PCBs). We evaluated the ability of different plant species to stimulate activity and diversity of the soil microbial community leading to the reduction of PCB concentrations in a heavily contaminated soil (at mg kg-1 dw level), of the national priority site for remediation (SIN) "Brescia-Caffaro" in Italy. Biostimulation was determined in large size (6kg) pots, to reflect semi-field conditions with a soil/root volume ratio larger than in most rhizoremediation experiments present in the literature. In total, 10 treatments were tested in triplicates comparing 7 plant species (grass and trees) and 5 soil/cultivation conditions (i.e., only one plant species, plant consociation, redox cycle, compost or ammonium thiosulfate addition) with the appropriate unplanted controls. After 18months of biostimulation the overall reduction of total PCBs varied between 14 and 20%. Microbial analysis revealed a shift in the microbial community structure over time and showed that all the planted treatments significantly enhanced microbial hydrolytic activity and the abundance of bacterial populations, including potential PCB degraders, in the soil surrounding plant roots. The plant species most effective in reducing the contaminant concentrations were Festuca arundinacea cultivated adding compost or in consociation with Cucurbita pepo ssp. pepo and Medicago sativa cultivated with Rhizobium spp. and mycorrhizal fungi; they reduced total PCB concentrations of about 20% and showed the significant depletion of a high number of PCB congeners (29, 37 and 23, respectively, out of the 79 measured). Our results suggest that these plant species are particularly efficient in increasing soil PCB bioavailability and in stimulating microbial degradation. They could be used in field rhizoremediation strategies to enhance the natural attenuation process and reduce PCB levels in historically contaminated sites.
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Affiliation(s)
- Elisa Terzaghi
- DiSAT, University of Insubria, Via Valleggio 11, Como, Italy
| | | | | | - Sara Borin
- DeFENS, University of Milan, Via Celoria 2, Milan, Italy
| | - Giuseppe Raspa
- DCEME, Sapienza University of Rome, Via Eudossiana 18, Rome, Italy
| | | | | | | | | | | | - Stefano Armiraglio
- Municipality of Brescia - Museum of Natural Sciences, Via Ozanam 4, Brescia, Italy
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Hou L, Liu R, Li N, Dai Y, Yan J. Study on the efficiency of phytoremediation of soils heavily polluted with PAHs in petroleum-contaminated sites by microorganism. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2019; 26:31401-31413. [PMID: 31485937 DOI: 10.1007/s11356-019-05828-1] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/08/2018] [Accepted: 06/24/2019] [Indexed: 06/10/2023]
Abstract
The effects of Fire Phoenix (a mixture of Festuca L.) and Purple coneflower (Echinacea purpurea (L.) Moench) on the remediation of two different high concentrations of PAH-contaminated soils were studied under the effect of strain N12 (Mycobacterium sp.), and the changes in rhizosphere enzymatic activity were preliminarily studied. The results of three culture stages (60 d, 120 d, and 150 d) showed that N12 has a promotional effect on the biomass of Fire Phoenix and E. purpurea, and the effect of N12 on the biomass of Fire Phoenix is better. Under the strengthening of N12, the maximum removal rates of Fire Phoenix reached 86.77% and 67.82% at two high PAH concentrations (A and B, respectively). The activity of dehydrogenase (DHO) is positively correlated with the degradation rate of PAHs at the A concentration (P < 0.05). The activity of DHO in soil will continue to increase at a higher level of the B concentration, but the positive correlation between the activity of DHO and the degradation rate of PAH is weakened. In the rhizosphere soil of the two plants, the change in polyphenol oxidase (PPO) activity with time has a significant negative correlation with the degradation rate of PAHs (P < 0.05). The experiment proved that Fire Phoenix is more suitable for the remediation of heavy PAH-contaminated soil under the condition of microorganism-strengthening, and it can achieve a better degradation effect when the concentrations of PAHs are < 150 mg·kg-1. Results provide a further scientific basis for the remediation of contaminated sites.
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Affiliation(s)
- Liqun Hou
- Key Laboratory of Pollution Ecology and Environmental Engineering, Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang, 110016, Liaoning, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Rui Liu
- Key Laboratory of Pollution Ecology and Environmental Engineering, Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang, 110016, Liaoning, China.
| | - Na Li
- Key Laboratory of Pollution Ecology and Environmental Engineering, Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang, 110016, Liaoning, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Yuanyuan Dai
- Key Laboratory of Pollution Ecology and Environmental Engineering, Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang, 110016, Liaoning, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Jun Yan
- Key Laboratory of Pollution Ecology and Environmental Engineering, Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang, 110016, Liaoning, China
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40
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Sharma RS, Karmakar S, Kumar P, Mishra V. Application of filamentous phages in environment: A tectonic shift in the science and practice of ecorestoration. Ecol Evol 2019; 9:2263-2304. [PMID: 30847110 PMCID: PMC6392359 DOI: 10.1002/ece3.4743] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2017] [Revised: 08/25/2018] [Accepted: 10/30/2018] [Indexed: 02/06/2023] Open
Abstract
Theories in soil biology, such as plant-microbe interactions and microbial cooperation and antagonism, have guided the practice of ecological restoration (ecorestoration). Below-ground biodiversity (bacteria, fungi, invertebrates, etc.) influences the development of above-ground biodiversity (vegetation structure). The role of rhizosphere bacteria in plant growth has been largely investigated but the role of phages (bacterial viruses) has received a little attention. Below the ground, phages govern the ecology and evolution of microbial communities by affecting genetic diversity, host fitness, population dynamics, community composition, and nutrient cycling. However, few restoration efforts take into account the interactions between bacteria and phages. Unlike other phages, filamentous phages are highly specific, nonlethal, and influence host fitness in several ways, which make them useful as target bacterial inocula. Also, the ease with which filamentous phages can be genetically manipulated to express a desired peptide to track and control pathogens and contaminants makes them useful in biosensing. Based on ecology and biology of filamentous phages, we developed a hypothesis on the application of phages in environment to derive benefits at different levels of biological organization ranging from individual bacteria to ecosystem for ecorestoration. We examined the potential applications of filamentous phages in improving bacterial inocula to restore vegetation and to monitor changes in habitat during ecorestoration and, based on our results, recommend a reorientation of the existing framework of using microbial inocula for such restoration and monitoring. Because bacterial inocula and biomonitoring tools based on filamentous phages are likely to prove useful in developing cost-effective methods of restoring vegetation, we propose that filamentous phages be incorporated into nature-based restoration efforts and that the tripartite relationship between phages, bacteria, and plants be explored further. Possible impacts of filamentous phages on native microflora are discussed and future areas of research are suggested to preclude any potential risks associated with such an approach.
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Affiliation(s)
- Radhey Shyam Sharma
- Bioresources and Environmental Biotechnology Laboratory, Department of Environmental StudiesUniversity of DelhiDelhiIndia
| | - Swagata Karmakar
- Bioresources and Environmental Biotechnology Laboratory, Department of Environmental StudiesUniversity of DelhiDelhiIndia
| | - Pankaj Kumar
- Bioresources and Environmental Biotechnology Laboratory, Department of Environmental StudiesUniversity of DelhiDelhiIndia
| | - Vandana Mishra
- Bioresources and Environmental Biotechnology Laboratory, Department of Environmental StudiesUniversity of DelhiDelhiIndia
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Gitipour S, Sorial GA, Ghasemi S, Bazyari M. Treatment technologies for PAH-contaminated sites: a critical review. ENVIRONMENTAL MONITORING AND ASSESSMENT 2018; 190:546. [PMID: 30140952 DOI: 10.1007/s10661-018-6936-4] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/27/2018] [Accepted: 08/15/2018] [Indexed: 06/08/2023]
Abstract
To reduce environmental and human health risks of contaminated sites, having a comprehensive knowledge about the polycyclic aromatic hydrocarbon (PAH) removal processes is crucial. PAHs are contaminants which are highly recognized to pose threats to humans, animals, and plants. PAHs are hydrophobic and own two or more benzene rings, and hence are resistant to structural degradation. There are various techniques which have been developed to treat PAH-contaminated soil. Four distinct processes to remove PAHs in the contaminated soil, thought to be more effective techniques, are presented in this review: soil washing, chemical oxidation, electrokinetic, phytoremediation. In a surfactant-aided washing process, a removal rate of 90% was reported. Compost-amended phytoremediation treatment presented 58-99% removal of pyrene from the soil in 90 days. Chemical oxidation method was able to reach complete conversion for some PAHs. In electrokinetic treatment, researchers have achieved reliable results in removal of some specific PAHs. Researchers' innovations in novel studies and advantages/disadvantages of the techniques are also investigated throughout the paper. Finally, it should be noted that an exclusive method or a combination of methods by themselves are not the key to be employed for remediation of every contaminated site but the field characteristics are also essential in selection of the most appropriate decontamination technique(s). The remedy for selection criteria is based on PAH concentrations, site characteristics, costs, shortcomings, and advantages.
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Affiliation(s)
- Saeid Gitipour
- Department of Environmental Engineering, Faculty of Environment, University of Tehran, No.25 Ghods St., Enghelab Ave, PO Box 81948/43995, Tehran, Iran.
| | - George A Sorial
- Department of Chemical and Environmental Engineering, University of Cincinnati, Cincinnati, OH, 45221-0012, USA
| | - Soroush Ghasemi
- Department of Environmental Engineering, Faculty of Environment, University of Tehran, No.25 Ghods St., Enghelab Ave, PO Box 81948/43995, Tehran, Iran
| | - Mahdieh Bazyari
- HSE Group, Graduate Faculty of Environment, University of Tehran, Tehran, Iran
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Zhang M, Wang J, Bai SH, Teng Y, Xu Z. Evaluating the effects of phytoremediation with biochar additions on soil nitrogen mineralization enzymes and fungi. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2018; 25:23106-23116. [PMID: 29860689 DOI: 10.1007/s11356-018-2425-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/14/2017] [Accepted: 05/28/2018] [Indexed: 06/08/2023]
Abstract
Phytoremediation with biochar addition might alleviate pollutant toxicity to soil microorganism. It is uncertain to what extent biochar addition rate could affect activities of enzymes related to soil nitrogen (N) mineralization and alter fungal community under the phytoremediation. This study aimed to reveal the effects of Medicago sativa L. (alfalfa) phytoremediation, alone or with biochar additions, on soil protease and chitinase and fungal community and link the responses of microbial parameters with biochar addition rates. The alfalfa phytoremediation enhanced soil protease activities, and relative to the phytoremediation alone, biochar additions had inconsistent impacts on the corresponding functional gene abundances. Compared with the blank control, alfalfa phytoremediation, alone or with biochar additions, increased fungal biomass and community richness estimators. Moreover, relative to the phytoremediation alone, the relative abundances of phylum Zygomycota were also increased by biochar additions. The whole soil fungal community was not significantly changed by the alfalfa phytoremediation alone, but was indeed changed by alfalfa phytoremediation with 3.0% (w/w) or 6.0% biochar addition. This study suggested that alfalfa phytoremediation could enhance N mineralization enzyme activities and that biochar addition rates affected the responses of fungal community to the alfalfa phytoremediation.
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Affiliation(s)
- Manyun Zhang
- Environmental Futures Research Institute, School of Natural Sciences, Griffith University, Brisbane, Queensland, 4111, Australia.
- Key Laboratory of Soil Environment and Pollution Remediation, Institute of Soil Science, Chinese Academy of Sciences, Nanjing, 210008, China.
| | - Jun Wang
- Key Laboratory of Soil Environment and Pollution Remediation, Institute of Soil Science, Chinese Academy of Sciences, Nanjing, 210008, China
- Chongqing Research Academy of Environmental Sciences, Chongqing, 401147, China
| | - Shahla Hosseini Bai
- Environmental Futures Research Institute, School of Natural Sciences, Griffith University, Brisbane, Queensland, 4111, Australia
- GeneCology Research Centre, Faculty of Science, Health, Education and Engineering, University of the Sunshine Coast, Maroochydore DC, Queensland, 4558, Australia
| | - Ying Teng
- Key Laboratory of Soil Environment and Pollution Remediation, Institute of Soil Science, Chinese Academy of Sciences, Nanjing, 210008, China.
| | - Zhihong Xu
- Environmental Futures Research Institute, School of Natural Sciences, Griffith University, Brisbane, Queensland, 4111, Australia.
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Alves WS, Manoel EA, Santos NS, Nunes RO, Domiciano GC, Soares MR. Phytoremediation of polycyclic aromatic hydrocarbons (PAH) by cv. Crioula: A Brazilian alfalfa cultivar. INTERNATIONAL JOURNAL OF PHYTOREMEDIATION 2018; 20:747-755. [PMID: 29775101 DOI: 10.1080/15226514.2018.1425663] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/21/2017] [Accepted: 01/02/2018] [Indexed: 06/08/2023]
Abstract
This work aimed to evaluate the phytoremediation capacity of the alfalfa cultivar Crioula in soils contaminated with polycyclic aromatic hydrocarbons (PAHs), primary pollutants with mutagenic and carcinogenic potential. Alfalfa was grown from seed for 40 days on soil amended with anthracene, pyrene, and phenanthrene. Soil and plant tissue was collected for biometric assay, dry mass analysis, and PAH analysis by liquid chromatography. Increased total PAH concentration was associated with decreases in plant biomass, height, and internode length. The Crioula cultivar had a satisfactory phytoremediation effect, reducing total PAH concentration (300 ppm) in the experimental soil by 85% in 20 days, and by more than 95% in 40 days. The PAH showed a tendency to be removed in the temporal order: phenanthrene before pyrene before anthracene, and the removal ratio was influenced by the initial soil concentration of each PAH.
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Affiliation(s)
- Wilber S Alves
- a Departamento de Bioquímica , Instituto de Química, UFRJ - Centro de Tecnologia, Cidade Universitária , Rio de Janeiro , Brazil
- b Programa Químico de Petróleo e Biocombustíveis PRH-01, Instituto de Química, UFRJ - Centro de Tecnologia, Cidade Universitária , Rio de Janeiro , Brazil
| | - Evelin A Manoel
- c Departamento de Biotecnologia Farmacêutica , Faculdade de Farmácia, UFRJ - Avenida Carlos Chagas Filho, Cidade Universitária , Rio de Janeiro , Brazil
| | - Noemi S Santos
- a Departamento de Bioquímica , Instituto de Química, UFRJ - Centro de Tecnologia, Cidade Universitária , Rio de Janeiro , Brazil
| | - Rosane O Nunes
- a Departamento de Bioquímica , Instituto de Química, UFRJ - Centro de Tecnologia, Cidade Universitária , Rio de Janeiro , Brazil
| | - Giselli C Domiciano
- a Departamento de Bioquímica , Instituto de Química, UFRJ - Centro de Tecnologia, Cidade Universitária , Rio de Janeiro , Brazil
| | - Marcia R Soares
- a Departamento de Bioquímica , Instituto de Química, UFRJ - Centro de Tecnologia, Cidade Universitária , Rio de Janeiro , Brazil
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Jeelani N, Yang W, Qiao Y, Li J, An S, Leng X. Individual and combined effects of cadmium and polycyclic aromatic hydrocarbons on the phytoremediation potential of Xanthium sibiricum in co-contaminated soil. INTERNATIONAL JOURNAL OF PHYTOREMEDIATION 2018; 20:773-779. [PMID: 29775102 DOI: 10.1080/15226514.2018.1425666] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Soil contamination with heavy metals and organic pollutants continues to cause major ecological damage and human health problems. Phytoremediation offers a highly promising technology for the recovery of sites contaminated with mixed pollutants. In this study, we performed a greenhouse experiment to investigate the individual and combined effects of cadmium (Cd) and polycyclic aromatic hydrocarbon (PAH) contamination on the growth of Xanthium sibiricum, and also the ability of this species to accumulate and remove Cd and to reduce PAHs over a period of 75 days. Our results demonstrated that individual or combined contamination by Cd and PAHs showed no significant differences to the control treatment except in the high Cd treatment. The reduction of PAH concentration in the soil with the passage of time was similar in the presence or absence of plants. At higher levels of Cd, the removal of pyrene decreased in both planted and non-planted soils; however, this effect might be due to the higher Cd content. Soil dehydrogenase and polyphenol oxidase activities showed that soil contamination did not have a significant effect on the removal of PAHs. Overall, our results suggest that X. sibiricum might be a suitable species for use in the phytoremediation of contaminated soils.
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Affiliation(s)
- Nasreen Jeelani
- a School of Life Science , Nanjing University , Nanjing , P. R. China
- b Nanjing University Ecology Research Institute of Changshu (NJUecoRICH) , Changshu , Jiangsu , P.R. China
| | - Wen Yang
- a School of Life Science , Nanjing University , Nanjing , P. R. China
- b Nanjing University Ecology Research Institute of Changshu (NJUecoRICH) , Changshu , Jiangsu , P.R. China
| | - Yajun Qiao
- a School of Life Science , Nanjing University , Nanjing , P. R. China
- b Nanjing University Ecology Research Institute of Changshu (NJUecoRICH) , Changshu , Jiangsu , P.R. China
| | - Jingjing Li
- a School of Life Science , Nanjing University , Nanjing , P. R. China
- b Nanjing University Ecology Research Institute of Changshu (NJUecoRICH) , Changshu , Jiangsu , P.R. China
| | - Shuqing An
- a School of Life Science , Nanjing University , Nanjing , P. R. China
- b Nanjing University Ecology Research Institute of Changshu (NJUecoRICH) , Changshu , Jiangsu , P.R. China
| | - Xin Leng
- a School of Life Science , Nanjing University , Nanjing , P. R. China
- b Nanjing University Ecology Research Institute of Changshu (NJUecoRICH) , Changshu , Jiangsu , P.R. China
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Ren CG, Kong CC, Bian B, Liu W, Li Y, Luo YM, Xie ZH. Enhanced phytoremediation of soils contaminated with PAHs by arbuscular mycorrhiza and rhizobium. INTERNATIONAL JOURNAL OF PHYTOREMEDIATION 2017; 19:789-797. [PMID: 28165756 DOI: 10.1080/15226514.2017.1284755] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Greenhouse experiment was conducted to evaluate the potential effectiveness of a legume (Sesbania cannabina), arbuscular mycorrhizal fungi (AMF) (Glomus mosseae), and rhizobia (Ensifer sp.) symbiosis for remediation of Polycyclic aromatic hydrocarbons (PAHs) in spiked soil. AMF and rhizobia had a beneficial impact on each other in the triple symbiosis. AMF and/or rhizobia significantly increased plant biomass and PAHs accumulation in plants. The highest PAHs dissipation was observed in plant + AMF + rhizobia treated soil, in which >97 and 85-87% of phenanthrene and pyrene, respectively, had been degraded, whereas 81-85 and 72-75% had been degraded in plant-treated soil. During the experiment, a relatively large amount of water-soluble phenolic compounds was detected in soils of AMF and/or rhizobia treatment. It matches well with the high microbial activity and soil enzymes activity. These results suggest that the mutual interactions in the triple symbiosis enhanced PAHs degradation via stimulating both microbial development and soil enzyme activity. The mutual interactions between rhizobia and AMF help to improve phytoremediation efficiency of PAHs by S. cannabina.
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Affiliation(s)
- Cheng-Gang Ren
- a Key Laboratory of Biology and Utilization of Biological Resources of Coastal Zone , Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences , Yantai , China
| | - Cun-Cui Kong
- a Key Laboratory of Biology and Utilization of Biological Resources of Coastal Zone , Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences , Yantai , China
- b Shanxi Agricultural University , Taigu , China
| | - Bian Bian
- a Key Laboratory of Biology and Utilization of Biological Resources of Coastal Zone , Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences , Yantai , China
| | - Wei Liu
- a Key Laboratory of Biology and Utilization of Biological Resources of Coastal Zone , Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences , Yantai , China
| | - Yan Li
- a Key Laboratory of Biology and Utilization of Biological Resources of Coastal Zone , Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences , Yantai , China
| | - Yong-Ming Luo
- c Key Laboratory of Coastal Environmental Processes and Ecological Remediation , Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences , Yantai , China
| | - Zhi-Hong Xie
- a Key Laboratory of Biology and Utilization of Biological Resources of Coastal Zone , Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences , Yantai , China
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Jeelani N, Yang W, Xu L, Qiao Y, An S, Leng X. Phytoremediation potential of Acorus calamus in soils co-contaminated with cadmium and polycyclic aromatic hydrocarbons. Sci Rep 2017; 7:8028. [PMID: 28808325 PMCID: PMC5556126 DOI: 10.1038/s41598-017-07831-3] [Citation(s) in RCA: 42] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2016] [Accepted: 07/04/2017] [Indexed: 11/14/2022] Open
Abstract
Phytoremediation is a promising technology for the remediation of sites co-contaminated with inorganic (heavy metal) and organic pollutants. A greenhouse experiment was conducted to investigate the independent and interactive effects of cadmium (Cd) and polycyclic aromatic hydrocarbons (PAHs) on the growth of the wetland plant Acorus calamus and its ability to uptake, accumulate, and remove pollutants from soils. Our results showed that growth and biomass of A. calamus were significantly influenced by the interaction of Cd and PAHs after 60 days of growth. The combined treatment of low Cd and low PAHs increased plant biomass and Cd accumulation in plant tissues, thus enhancing Cd removal. Dissipation of PAHs from soils was not significantly influenced by Cd addition or by the presence of plants. Correlation analysis also indicated a positive relationship between residual concentrations of phenantherene and pyrene (PAHs), whereas enzyme activities (dehydrogenase and polyphenol oxidase) were negatively correlated with each other. Cluster analysis was used to evaluate the similarity between different treatments during phytoremediation of Cd and PAHs. Our results suggest that A. calamus might be useful for phytoremediation of co-contaminated soil.
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Affiliation(s)
- Nasreen Jeelani
- School of Life Science, Nanjing University, Nanjing, 210093, P. R. China
- Nanjing University Ecology Research Institute of Changshu (NJUecoRICH), Changshu, 215500, Jiangsu, P.R. China
| | - Wen Yang
- School of Life Science, Nanjing University, Nanjing, 210093, P. R. China
- Nanjing University Ecology Research Institute of Changshu (NJUecoRICH), Changshu, 215500, Jiangsu, P.R. China
| | - Lingqian Xu
- School of Life Science, Nanjing University, Nanjing, 210093, P. R. China
- Nanjing University Ecology Research Institute of Changshu (NJUecoRICH), Changshu, 215500, Jiangsu, P.R. China
| | - Yajun Qiao
- School of Life Science, Nanjing University, Nanjing, 210093, P. R. China
- Nanjing University Ecology Research Institute of Changshu (NJUecoRICH), Changshu, 215500, Jiangsu, P.R. China
| | - Shuqing An
- School of Life Science, Nanjing University, Nanjing, 210093, P. R. China
- Nanjing University Ecology Research Institute of Changshu (NJUecoRICH), Changshu, 215500, Jiangsu, P.R. China
| | - Xin Leng
- School of Life Science, Nanjing University, Nanjing, 210093, P. R. China.
- Nanjing University Ecology Research Institute of Changshu (NJUecoRICH), Changshu, 215500, Jiangsu, P.R. China.
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Zhao L, Jiang J, Chen C, Zhan S, Yang J, Yang S. Efficiency and mechanism of the phytoremediation of decabromodiphenyl ether-contaminated sediments by aquatic macrophyte Scirpus validus. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2017; 24:12949-12962. [PMID: 28374199 DOI: 10.1007/s11356-017-8900-1] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/17/2016] [Accepted: 03/20/2017] [Indexed: 06/07/2023]
Abstract
Phytoremediation is an economic and promising technique for removing toxic pollutants from the environment. Freshwater sediments are regarded as the ultimate sink of the widely used PBDE congener decabromodiphenyl ether (BDE-209) in the environment. In the study, the aquatic macrophyte Scirpus validus was selected to remove BDE-209 from three types of sediments (silt, clay, and sand) at an environmentally relevant concentration. After 18 months of phytoremediation experiment, S. validus significantly enhanced the dissipation rates of BDE-209 in all the sediments compared to the controls. Average removal rates of BDE-209 in the three treatments of silt, clay, and sandy sediments with S. validus were respectively 92.84, 84.04, and 72.22%, which were 148, 197, and 233% higher than that in the control sediments without S. validus. In the phytoremediation process, the macrophyte-rhizosphere microbe combined degradation was the main pathway of BDE-209 removal. Sixteen lower brominated PBDE congeners (di- to nona-) were detected in the sediments and plant tissues, confirming metabolic debromination of BDE-209 in S. validus. A relatively higher proportion of penta- and di-BDE congeners among the metabolites in plant tissues than that in the sediments indicated further debromination of PBDEs within plants. The populations and activities of microorganisms in the sediments were greatly promoted by S. validus. Bacterial community structure in BDE-209-contaminated rhizosphere sediments was different from that in the control rhizosphere sediment, as indicated by the dominant proportions of β-proteobacteria, δ-proteobacteria, α-proteobacteria, Acidobacteria, and Chloroflexi in the microbial flora. All these results suggested that S. validus was effective in phytoremediation of BDE-209 by the macrophyte-rhizosphere microbe combined degradation in aquatic sediments.
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Affiliation(s)
- Liangyuan Zhao
- School of Life Sciences, Central China Normal University, Wuhan, 430079, China
- Basin Water Environmental Research Department, Yangtze River Scientific Research Institute, Wuhan, 430010, China
| | - Jinhui Jiang
- School of Life Sciences, Central China Normal University, Wuhan, 430079, China
| | - Chuanhong Chen
- School of Life Sciences, Central China Normal University, Wuhan, 430079, China
- Key Laboratory of Nuclear Resources and Environment, Ministry of Education, East China University of Technology, Fuzhou, 344000, China
| | - Shuie Zhan
- School of Life Sciences, Central China Normal University, Wuhan, 430079, China
| | - Jiaoyan Yang
- School of Life Sciences, Central China Normal University, Wuhan, 430079, China
| | - Shao Yang
- School of Life Sciences, Central China Normal University, Wuhan, 430079, China.
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Liu X, Liu W, Wang Q, Wu L, Luo Y, Christie P. Soil properties and microbial ecology of a paddy field after repeated applications of domestic and industrial sewage sludges. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2017; 24:8619-8628. [PMID: 28194679 DOI: 10.1007/s11356-017-8543-2] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/01/2016] [Accepted: 02/01/2017] [Indexed: 06/06/2023]
Abstract
The effects of repeated application of two types of sewage sludge, domestic and industrial (petrochemical, PSS) sludges, into paddy fields over a 5-year period on the soil properties and microbial ecology were studied and compared with conventional NPK fertilizer application. Soil organic matter and total nitrogen contents were significantly higher in the two sludge treatments than that in fertilized plots after 5 years. Soil concentrations of potentially toxic metals were low after 5 years of both sludge treatments, but the polycyclic aromatic hydrocarbons (PAHs) showed differences between the two sludge types. Concentrations of high-molecular-weight PAHs were significantly higher (p < 0.05) in the petrochemical sludge treatment than the domestic sludge treatment or the fertilizer control, although the total concentrations of 16 types of PAH in the petrochemical sludge treatment were only slightly higher than in the domestic sludge treatment and the control. The biological toxicity of soil dimethyl sulfoxide extracts from the petrochemical sludge treatment was also significantly higher (p < 0.05) than those from the fertilizer control and the domestic sludge treatment when evaluated using Photobacterium phosphoreum T3. Both types of sewage sludge increased soil microbial activity, but only the petrochemical sludge led to enrichment with specific PAH degraders such as Mycobacterium, Nocardioides, and Sphingomonas.
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Affiliation(s)
- Xiaoyan Liu
- Key Laboratory of Soil Environment and Pollution Remediation, Institute of Soil Science, Chinese Academy of Sciences, Nanjing, 210008, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Wuxing Liu
- Key Laboratory of Soil Environment and Pollution Remediation, Institute of Soil Science, Chinese Academy of Sciences, Nanjing, 210008, China.
| | - Qingling Wang
- Key Laboratory of Soil Environment and Pollution Remediation, Institute of Soil Science, Chinese Academy of Sciences, Nanjing, 210008, China
| | - Longhua Wu
- Key Laboratory of Soil Environment and Pollution Remediation, Institute of Soil Science, Chinese Academy of Sciences, Nanjing, 210008, China
| | - Yongming Luo
- Key Laboratory of Soil Environment and Pollution Remediation, Institute of Soil Science, Chinese Academy of Sciences, Nanjing, 210008, China
- Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai, 264003, China
| | - Peter Christie
- Key Laboratory of Soil Environment and Pollution Remediation, Institute of Soil Science, Chinese Academy of Sciences, Nanjing, 210008, China
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Deng S, Zeng D. Removal of phenanthrene in contaminated soil by combination of alfalfa, white-rot fungus, and earthworms. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2017; 24:7565-7571. [PMID: 28116628 DOI: 10.1007/s11356-017-8466-y] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/03/2016] [Accepted: 01/16/2017] [Indexed: 06/06/2023]
Abstract
The aim of this study was to investigate the removal of phenanthrene by combination of alfalfa, white-rot fungus, and earthworms in soil. A 60-day experiment was conducted. Inoculation with earthworms and/or white-rot fungus increased alfalfa biomass and phenanthrene accumulation in alfalfa. However, inoculations of alfalfa and white-rot fungus can significantly decrease the accumulation of phenanthrene in earthworms. The removal rates for phenanthrene in soil were 33, 48, 66, 74, 85, and 93% under treatments control, only earthworms, only alfalfa, earthworms + alfalfa, alfalfa + white-rot fungus, and alfalfa + earthworms + white-rot fungus, respectively. The present study demonstrated that the combination of alfalfa, earthworms, and white-rot fungus is an effective way to remove phenanthrene in the soil. The removal is mainly via stimulating both microbial development and soil enzyme activity.
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Affiliation(s)
- Shuguang Deng
- School of Resource and Environmental Engineering, Wuhan University of Technology, Wuhan, 430070, China
| | - Defang Zeng
- School of Resource and Environmental Engineering, Wuhan University of Technology, Wuhan, 430070, China.
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50
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Guarino C, Spada V, Sciarrillo R. Assessment of three approaches of bioremediation (Natural Attenuation, Landfarming and Bioagumentation - Assistited Landfarming) for a petroleum hydrocarbons contaminated soil. CHEMOSPHERE 2017; 170:10-16. [PMID: 27951446 DOI: 10.1016/j.chemosphere.2016.11.165] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/29/2016] [Revised: 11/02/2016] [Accepted: 11/30/2016] [Indexed: 06/06/2023]
Abstract
Contamination with total petroleum hydrocarbons (TPH) subsequent to refining activities, is currently one of the major environmental problems. Among the biological remediation approaches, landfarming and in situ bioremediation strategies are of great interest. Purpose of this study was to verify the feasibility of a remediation process wholly based on biological degradation applied to contaminated soils from a decommissioned refinery. This study evaluated through a pot experiment three bioremediation strategies: a) Natural Attenuation (NA), b) Landfarming (L), c) Bioaugmentation-assisted Landfarming (LB) for the treatment of a contaminated soil with petroleum hydrocarbons (TPHs). After a 90-days trial, Bioagumentation - assistited Landfarming approach produced the best results and the greatest evident effect was shown with the most polluted samples reaching a reduction of about 86% of total petroleum hydrocarbons (TPH), followed by Landfarming (70%), and Natural Attenuation (57%). The results of this study demonstrated that the combined use of bioremediation strategies was the most advantageous option for the treatment of contaminated soil with petroleum hydrocarbons, as compared to natural attenuation, bioaugmentation or landfarming applied alone. Besides, our results indicate that incubation with an autochthonous bacterial consortium may be a promising method for bioremediation of TPH-contaminated soils.
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Affiliation(s)
- C Guarino
- University of Sannio, Department of Science and Technology, Via Port'Arsa 11, 82100, Benevento, Italy
| | - V Spada
- University of Sannio, Department of Science and Technology, Via Port'Arsa 11, 82100, Benevento, Italy
| | - R Sciarrillo
- University of Sannio, Department of Science and Technology, Via Port'Arsa 11, 82100, Benevento, Italy.
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