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Ascomycetes versus Spent Mushroom Substrate in Mycoremediation of Dredged Sediments Contaminated by Total Petroleum Hydrocarbons: The Involvement of the Bacterial Metabolism. WATER 2021. [DOI: 10.3390/w13213040] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Two mycoremediation approaches for the depletion of the total petroleum hydrocarbons in dredged sediments were compared: co-composting with spent mushroom substrate (SMS) from Pleurotus ostreatus and bioaugmentation with Lambertella sp. MUT 5852, an ascomycetes autochthonous to the sediment, capable of utilizing diesel oil its sole carbon source. After 28 days of incubation, 99% depletion was observed in presence of Lambertella sp. MUT 5852. No total petroleum hydrocarbon depletion was observed in sediment co-composting with the SMS after 60 days of incubation. 16S rDNA metabarcoding of the bacterial community was performed to evaluate the potential synergism between fungi and bacteria in the bioremediation process. The functional metagenomic prediction approach indicated that the biodiversity of the bacterial genera potentially involved in the degradation of TPH was higher in sediment bioaugmented with Lambertella sp. MUT 5852, which resulted in being mandatory for TPH depletion. Mechanisms of co-substrate inhibition of the hydrocarburoclastic bacterial species, due to the bioavailable organic matter of the SMS, are suggested to be involved in the observed kinetics of TPH depletion, failing in the case of SMS and successful in the case of Lambertella sp. MUT 5852.
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2
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Valizadeh S, Lee SS, Baek K, Choi YJ, Jeon BH, Rhee GH, Andrew Lin KY, Park YK. Bioremediation strategies with biochar for polychlorinated biphenyls (PCBs)-contaminated soils: A review. ENVIRONMENTAL RESEARCH 2021; 200:111757. [PMID: 34303678 DOI: 10.1016/j.envres.2021.111757] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/26/2021] [Revised: 07/05/2021] [Accepted: 07/17/2021] [Indexed: 06/13/2023]
Abstract
Polychlorinated biphenyls (PCBs) are hazardous organic contaminants threatening human health and environmental safety due to their toxicity and carcinogenicity. Biochar (BC) is an eco-friendly carbonaceous material that can extensively be utilized for the remediation of PCBs-contaminated soils. In the last decade, many studies reported that BC is beneficial for soil quality enhancement and agricultural productivity based on its physicochemical characteristics. In this review, the potential of BC application in PCBs-contaminated soils is elaborated as biological strategies (e.g., bioremediation and phytoremediation) and specific mechanisms are also comprehensively demonstrated. Further, the synergy effects of BC application on PCBs-contaminated soils are discussed, in view of eco-friendly, beneficial, and productive aspects.
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Affiliation(s)
- Soheil Valizadeh
- School of Environmental Engineering, University of Seoul, Seoul, 02504, Republic of Korea
| | - Sang Soo Lee
- Department of Environmental & Energy Engineering, Yonsei University, Wonju, 26493, Republic of Korea
| | - Kitae Baek
- Department of Environment & Energy (BK21 FOUR) and Soil Environment Research Center, Jeonbuk National University, Jeonju, Jeollabukdo 54896, Republic of Korea
| | - Yong Jun Choi
- School of Environmental Engineering, University of Seoul, Seoul, 02504, Republic of Korea
| | - Byong-Hun Jeon
- Department of Earth Resources and Environmental Engineering, Hanyang University, Seoul, 04763, Republic of Korea
| | - Gwang Hoon Rhee
- Department of Mechanical and Information Engineering, University of Seoul, Seoul, 02504, Republic of Korea
| | - Kun-Yi Andrew Lin
- Department of Environmental Engineering, National Chung Hsing University, 250 Kuo-Kuang Road, Taichung, Taiwan
| | - Young-Kwon Park
- School of Environmental Engineering, University of Seoul, Seoul, 02504, Republic of Korea.
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3
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Pathiraja G, Egodawatta P, Goonetilleke A, Te'o VSJ. Solubilization and degradation of polychlorinated biphenyls (PCBs) by naturally occurring facultative anaerobic bacteria. THE SCIENCE OF THE TOTAL ENVIRONMENT 2019; 651:2197-2207. [PMID: 30326452 DOI: 10.1016/j.scitotenv.2018.10.127] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/20/2018] [Revised: 10/09/2018] [Accepted: 10/09/2018] [Indexed: 06/08/2023]
Abstract
A combination of solubilization and degradation is essential for the bioremediation of environments contaminated with complex polychlorinated biphenyls (PCB) mixtures. However, the application of facultative anaerobic microorganisms that can both solubilize and breakdown hydrophobic PCBs in aqueous media under both anaerobic and aerobic conditions, has not been reported widely. In this comprehensive study, four bacteria discovered from soil and sediments and identified as Achromobacter sp. NP03, Ochrobactrum sp. NP04, Lysinibacillus sp. NP05 and Pseudomonas sp. NP06, were investigated for their PCB degradation efficiencies. Aroclor 1260 (50 mg/L), a commercial and highly chlorinated PCB mixture was exposed to the different bacterial strains under aerobic, anaerobic and two stage anaerobic-aerobic conditions. The results confirmed that all four facultative anaerobic microorganisms were capable of degrading PCBs under both anaerobic and aerobic conditions. The highest chlorine removal (9.16 ± 0.8 mg/L), PCB solubility (14.7 ± 0.93 mg/L) and growth rates as OD600 (2.63 ± 0.22) were obtained for Lysinibacillus sp. NP05 under two stage anaerobic-aerobic conditions. The presence of biosurfactants in the culture medium suggested their role in solubility of PCBs. Overall, the positive results obtained suggest that high PCB hydrolysis can be achieved using suitable facultative anaerobic microorganisms under two stage anaerobic-aerobic conditions. Such facultative microbial strains capable of solubilization as well as degradation of PCBs under both anaerobic and aerobic conditions provide an efficient and effective alternative to commonly used bioaugmentation methods utilizing specific obligate aerobic and anaerobic microorganisms, separately.
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Affiliation(s)
- Gathanayana Pathiraja
- School of Earth, Environmental and Biological Sciences, Queensland University of Technology (QUT), Brisbane 4001, Queensland, Australia.
| | - Prasanna Egodawatta
- School of Earth, Environmental and Biological Sciences, Queensland University of Technology (QUT), Brisbane 4001, Queensland, Australia.
| | - Ashantha Goonetilleke
- School of Civil Engineering and Built Environment, Queensland University of Technology (QUT), Brisbane 4001, Queensland, Australia.
| | - Valentino S Junior Te'o
- School of Earth, Environmental and Biological Sciences, Queensland University of Technology (QUT), Brisbane 4001, Queensland, Australia.
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Hydrocarbonoclastic Ascomycetes to enhance co-composting of total petroleum hydrocarbon (TPH) contaminated dredged sediments and lignocellulosic matrices. N Biotechnol 2019; 50:27-36. [PMID: 30654133 DOI: 10.1016/j.nbt.2019.01.006] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2018] [Revised: 01/09/2019] [Accepted: 01/13/2019] [Indexed: 02/06/2023]
Abstract
Four new Ascomycete fungi capable of degrading diesel oil were isolated from sediments of a river estuary mainly contaminated by shipyard fuels or diesel oil. The isolates were identified as species of Lambertella, Penicillium, Clonostachys, and Mucor. The fungal candidates degraded and adsorbed the diesel oil in suspension cultures. The Lambertella sp. isolate displayed the highest percentages of oxidation of diesel oil and was characterised by the capacity to utilise the latter as a sole carbon source. This isolate showed extracellular laccase and Mn-peroxidase activities in the presence of diesel oil. It was tested for capacity to accelerate the process of decontamination of total petroleum hydrocarbon contaminated sediments, co-composted with lignocellulosic residues and was able to promote the degradation of 47.6% of the TPH contamination (54,074 ± 321 mg TPH/Kg of sediment) after two months of incubation. The response of the bacterial community during the degradation process was analysed by 16S rRNA gene meta-barcoding.
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PCB in the environment: bio-based processes for soil decontamination and management of waste from the industrial production of Pleurotus ostreatus. N Biotechnol 2017; 39:232-239. [DOI: 10.1016/j.nbt.2017.08.011] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2016] [Revised: 08/25/2017] [Accepted: 08/28/2017] [Indexed: 01/01/2023]
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6
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Wang H, Hwang J, Huang J, Xu Y, Yu G, Li W, Zhang K, Liu K, Cao Z, Ma X, Wei Z, Wang Q. Mechanochemical remediation of PCB contaminated soil. CHEMOSPHERE 2017; 168:333-340. [PMID: 27810532 DOI: 10.1016/j.chemosphere.2016.10.073] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/16/2016] [Revised: 10/18/2016] [Accepted: 10/20/2016] [Indexed: 06/06/2023]
Abstract
Soil contaminated by polychlorinated biphenyls (PCBs) is a ubiquitous problem in the world, which can cause significant risks to human health and the environment. Mechanochemical destruction (MCD) has been recognized as a promising technology for the destruction of persistent organic pollutants (POPs) and other organic molecules in both solid waste and contaminated soil. However, few studies have been published about the application of MCD technology for the remediation of PCB contaminated soil. In the present study, the feasibility of destroying PCBs in contaminated soil by co-grinding with and without additives in a planetary ball mill was investigated. After 4 h milling time, more than 96% of PCBs in contaminated soil samples were destroyed. The residual concentrations of PCBs decreased from 1000 mg/kg to below the provisional Basel Convention limit of less than 50 mg/kg. PCDD/F present in the original soil at levels of 4200 ng TEQ/kg was also destroyed with even a slightly higher destruction efficiency. Only minor dechlorinations of the PCBs were observed and the destruction of the hydrocarbon skeleton is proposed as the main degradation pathway of PCBs.
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Affiliation(s)
- Haizhu Wang
- State Key Joint Laboratory of Environment Simulation and Pollution Control (SKJLESPC), Beijing Key Laboratory for Emerging Organic Contaminants Control, School of Environment, POPs Research Center, Tsinghua University, Beijing, 100084, PR China; State Key Laboratory of High Power Semiconductor Laser, Changchun University of Science and Technology, Changchun, 130022, PR China
| | - Jisu Hwang
- State Key Joint Laboratory of Environment Simulation and Pollution Control (SKJLESPC), Beijing Key Laboratory for Emerging Organic Contaminants Control, School of Environment, POPs Research Center, Tsinghua University, Beijing, 100084, PR China
| | - Jun Huang
- State Key Joint Laboratory of Environment Simulation and Pollution Control (SKJLESPC), Beijing Key Laboratory for Emerging Organic Contaminants Control, School of Environment, POPs Research Center, Tsinghua University, Beijing, 100084, PR China.
| | - Ying Xu
- School of Physics, Northeast Normal University, Changchun, 130024, PR China
| | - Gang Yu
- State Key Joint Laboratory of Environment Simulation and Pollution Control (SKJLESPC), Beijing Key Laboratory for Emerging Organic Contaminants Control, School of Environment, POPs Research Center, Tsinghua University, Beijing, 100084, PR China
| | - Wenchao Li
- CSD IDEA (Beijing) Environmental Test & Analysis Co. Ltd, Beijing, 100192, PR China
| | - Kunlun Zhang
- State Key Joint Laboratory of Environment Simulation and Pollution Control (SKJLESPC), Beijing Key Laboratory for Emerging Organic Contaminants Control, School of Environment, POPs Research Center, Tsinghua University, Beijing, 100084, PR China
| | - Kai Liu
- State Key Joint Laboratory of Environment Simulation and Pollution Control (SKJLESPC), Beijing Key Laboratory for Emerging Organic Contaminants Control, School of Environment, POPs Research Center, Tsinghua University, Beijing, 100084, PR China
| | - Zhiguo Cao
- State Key Joint Laboratory of Environment Simulation and Pollution Control (SKJLESPC), Beijing Key Laboratory for Emerging Organic Contaminants Control, School of Environment, POPs Research Center, Tsinghua University, Beijing, 100084, PR China
| | - Xiaohui Ma
- State Key Laboratory of High Power Semiconductor Laser, Changchun University of Science and Technology, Changchun, 130022, PR China
| | - Zhipeng Wei
- State Key Laboratory of High Power Semiconductor Laser, Changchun University of Science and Technology, Changchun, 130022, PR China
| | - Quhui Wang
- State Key Laboratory of High Power Semiconductor Laser, Changchun University of Science and Technology, Changchun, 130022, PR China
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Arslan M, Imran A, Khan QM, Afzal M. Plant-bacteria partnerships for the remediation of persistent organic pollutants. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2017; 24:4322-4336. [PMID: 26139403 DOI: 10.1007/s11356-015-4935-3] [Citation(s) in RCA: 80] [Impact Index Per Article: 11.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/16/2015] [Accepted: 06/22/2015] [Indexed: 05/22/2023]
Abstract
High toxicity, bioaccumulation factor and widespread dispersal of persistent organic pollutants (POPs) cause environmental and human health hazards. The combined use of plants and bacteria is a promising approach for the remediation of soil and water contaminated with POPs. Plants provide residency and nutrients to their associated rhizosphere and endophytic bacteria. In return, the bacteria support plant growth by the degradation and detoxification of POPs. Moreover, they improve plant growth and health due to their innate plant growth-promoting mechanisms. This review provides a critical view of factors that affect absorption and translocation of POPs in plants and the limitations that plant have to deal with during the remediation of POPs. Moreover, the synergistic effects of plant-bacteria interactions in the phytoremediation of organic pollutants with special reference to POPs are discussed.
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Affiliation(s)
- Muhammad Arslan
- Earth Sciences Department, King Fahd University of Petroleum and Minerals, Dhahran, 31261, Saudi Arabia
| | - Asma Imran
- Environmental Biotechnology Division, National Institute for Biotechnology and Genetic Engineering (NIBGE), Faisalabad, Pakistan
| | - Qaiser Mahmood Khan
- Environmental Biotechnology Division, National Institute for Biotechnology and Genetic Engineering (NIBGE), Faisalabad, Pakistan
| | - Muhammad Afzal
- Environmental Biotechnology Division, National Institute for Biotechnology and Genetic Engineering (NIBGE), Faisalabad, Pakistan.
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8
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Vergani L, Mapelli F, Zanardini E, Terzaghi E, Di Guardo A, Morosini C, Raspa G, Borin S. Phyto-rhizoremediation of polychlorinated biphenyl contaminated soils: An outlook on plant-microbe beneficial interactions. THE SCIENCE OF THE TOTAL ENVIRONMENT 2017; 575:1395-1406. [PMID: 27717569 DOI: 10.1016/j.scitotenv.2016.09.218] [Citation(s) in RCA: 71] [Impact Index Per Article: 10.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/16/2016] [Revised: 09/28/2016] [Accepted: 09/28/2016] [Indexed: 05/18/2023]
Abstract
Polychlorinated biphenyls (PCBs) are toxic chemicals, recalcitrant to degradation, bioaccumulative and persistent in the environment, causing adverse effects on ecosystems and human health. For this reason, the remediation of PCB-contaminated soils is a primary issue to be addressed. Phytoremediation represents a promising tool for in situ soil remediation, since the available physico-chemical technologies have strong environmental and economic impacts. Plants can extract and metabolize several xenobiotics present in the soil, but their ability to uptake and mineralize PCBs is limited due to the recalcitrance and low bioavailability of these molecules that in turn impedes an efficient remediation of PCB-contaminated soils. Besides plant degradation ability, rhizoremediation takes into account the capability of soil microbes to uptake, attack and degrade pollutants, so it can be seen as the most suitable strategy to clean-up PCB-contaminated soils. Microbes are in fact the key players of PCB degradation, performed under both aerobic and anaerobic conditions. In the rhizosphere, microbes and plants positively interact. Microorganisms can promote plant growth under stressed conditions typical of polluted soils. Moreover, in this specific niche, root exudates play a pivotal role by promoting the biphenyl catabolic pathway, responsible for microbial oxidative PCB metabolism, and by improving the overall PCB degradation performance. Besides rhizospheric microbial community, also the endophytic bacteria are involved in pollutant degradation and represent a reservoir of microbial resources to be exploited for bioremediation purposes. Here, focusing on plant-microbe beneficial interactions, we propose a review of the available results on PCB removal from soil obtained combining different plant and microbial species, mainly under simplified conditions like greenhouse experiments. Furthermore, we discuss the potentiality of "omics" approaches to identify PCB-degrading microbes, an aspect of paramount importance to design rhizoremediation strategies working efficiently under different environmental conditions, pointing out the urgency to expand research investigations to field scale.
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Affiliation(s)
- Lorenzo Vergani
- Department of Food, Environmental and Nutritional Sciences (DeFENS), University of Milan, Via Celoria 2, 20133 Milan, Italy
| | - Francesca Mapelli
- Department of Food, Environmental and Nutritional Sciences (DeFENS), University of Milan, Via Celoria 2, 20133 Milan, Italy
| | - Elisabetta Zanardini
- Department of Science and High Technology (DiSAT), University of Insubria, Via Valleggio 9, Como, Italy
| | - Elisa Terzaghi
- Department of Science and High Technology (DiSAT), University of Insubria, Via Valleggio 9, Como, Italy
| | - Antonio Di Guardo
- Department of Science and High Technology (DiSAT), University of Insubria, Via Valleggio 9, Como, Italy
| | - Cristiana Morosini
- Department of Science and High Technology (DiSAT), University of Insubria, Via G.B. Vico 46, Varese, Italy
| | - Giuseppe Raspa
- Department of Chemical Engineering Materials Environment (DICMA), Rome "La Sapienza" University, Via Eudossiana 18, Rome, Italy
| | - Sara Borin
- Department of Food, Environmental and Nutritional Sciences (DeFENS), University of Milan, Via Celoria 2, 20133 Milan, Italy.
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9
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Covino S, Stella T, D'Annibale A, Lladó S, Baldrian P, Čvančarová M, Cajthaml T, Petruccioli M. Comparative assessment of fungal augmentation treatments of a fine-textured and historically oil-contaminated soil. THE SCIENCE OF THE TOTAL ENVIRONMENT 2016; 566-567:250-259. [PMID: 27220102 DOI: 10.1016/j.scitotenv.2016.05.018] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/22/2016] [Revised: 05/03/2016] [Accepted: 05/03/2016] [Indexed: 06/05/2023]
Abstract
The removal of aged hydrophobic contaminants from fine-textured soils is a challenging issue in remediation. The objective of this study was to compare the efficacy of augmentation treatments to that of biostimulation in terms of total aliphatic hydrocarbon (TAH) and toxicity removal from a historically contaminated clay soil and to assess their impact on the resident microbial community. To this aim, Pleurotus ostreatus, Botryosphaeria rhodina and a combination of both were used as the inoculants while the addition of a sterilized lignocellulose mixture to soil (1:5, w/w) was used as a biostimulation approach. As opposed to the non-amended control soil, where no changes in TAH concentration and residual toxicity were observed after 60days, the activation of specialized bacteria was found in the biostimulated microcosms resulting in significant TAH removal (79.8%). The bacterial community structure in B. rhodina-augmented microcosms did not differ from the biostimulated microcosms due to the inability of the fungus to be retained within the resident microbiota. Best TAH removals were observed in microcosms inoculated with P. ostreatus alone (Po) and in binary consortium with B. rhodina (BC) (86.8 and 88.2%, respectively). In these microcosms, contaminant degradation exceeded their bioavailability thresholds determined by sequential supercritical CO2 extraction. Illumina metabarcoding of 16S rRNA gene showed that the augmentation with Po and BC led to lower relative abundances of Gram(+) taxa, Actinobacteria in particular, than those in biostimulated microcosms. Best detoxification, with respect to the non-amended incubation control, was found in Po microcosms where a drop in collembola mortality (from 90 to 22%) occurred. At the end of incubation, in both Po and BC, the relative abundances of P. ostreatus sequences were higher than 60% thus showing the suitability of this fungus in bioaugmentation-based remediation applications.
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Affiliation(s)
- Stefano Covino
- Institute for Environmental studies, Faculty of Science, Charles University, Prague, Czech Republic; Laboratory of Environmental Biotechnology, Institute of Microbiology of the Czech Academy of Sciences, Praha, Czech Republic; Department for Innovation in Biological, Agro-Food, and Forest systems (DIBAF), University of Tuscia, Viterbo, Italy
| | - Tatiana Stella
- Laboratory of Environmental Biotechnology, Institute of Microbiology of the Czech Academy of Sciences, Praha, Czech Republic
| | - Alessandro D'Annibale
- Department for Innovation in Biological, Agro-Food, and Forest systems (DIBAF), University of Tuscia, Viterbo, Italy.
| | - Salvador Lladó
- Laboratory of Environmental Microbiology, Institute of Microbiology of the Czech Academy of Sciences, Praha, Czech Republic
| | - Petr Baldrian
- Laboratory of Environmental Microbiology, Institute of Microbiology of the Czech Academy of Sciences, Praha, Czech Republic
| | - Monika Čvančarová
- Institute for Environmental studies, Faculty of Science, Charles University, Prague, Czech Republic; Laboratory of Environmental Biotechnology, Institute of Microbiology of the Czech Academy of Sciences, Praha, Czech Republic
| | - Tomas Cajthaml
- Institute for Environmental studies, Faculty of Science, Charles University, Prague, Czech Republic; Laboratory of Environmental Biotechnology, Institute of Microbiology of the Czech Academy of Sciences, Praha, Czech Republic
| | - Maurizio Petruccioli
- Department for Innovation in Biological, Agro-Food, and Forest systems (DIBAF), University of Tuscia, Viterbo, Italy
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Plant-assisted bioremediation of a historically PCB and heavy metal-contaminated area in Southern Italy. N Biotechnol 2016; 38:65-73. [PMID: 27686395 DOI: 10.1016/j.nbt.2016.09.006] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2015] [Revised: 09/06/2016] [Accepted: 09/23/2016] [Indexed: 11/22/2022]
Abstract
A plant-assisted bioremediation strategy was applied in an area located in Southern Italy, close to the city of Taranto, historically contaminated by polychlorinated biphenyls (PCBs) and heavy metals. A specific poplar clone (Monviso) was selected for its ability to promote organic pollutant degradation in the rhizosphere, as demonstrated elsewhere. Chemical and microbiological analyses were performed at the time of poplar planting in selected plots at different distances from the trunk (0.25-1m) and at different soil depths (0-20 and 20-40cm), at day 420. A significant decrease in PCB congeners and a reduction in all heavy metals was observed where the poplar trees were present. No evidence of PCB and heavy metal reduction was observed in the non poplar-vegetated soil. Microbial analyses (dehydrogenase activity, cell viability, microbial abundance) of the autochthonous microbial community showed an improvement in soil quality. In particular, microbial activity generally increased in the poplar-rhizosphere and a positive effect was observed in some cases at up to 1m distance from the trunk and up to 40cm depth. The Monviso clone was effective in promoting both a general decrease in contaminant occurrence and an increase in microbial activity in the chronically polluted area a little more than one year after planting.
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García-Delgado C, D'Annibale A, Pesciaroli L, Yunta F, Crognale S, Petruccioli M, Eymar E. Implications of polluted soil biostimulation and bioaugmentation with spent mushroom substrate (Agaricus bisporus) on the microbial community and polycyclic aromatic hydrocarbons biodegradation. THE SCIENCE OF THE TOTAL ENVIRONMENT 2015; 508:20-28. [PMID: 25437949 DOI: 10.1016/j.scitotenv.2014.11.046] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/31/2014] [Revised: 11/12/2014] [Accepted: 11/13/2014] [Indexed: 06/04/2023]
Abstract
Different applications of spent Agaricus bisporus substrate (SAS), a widespread agro-industrial waste, were investigated with respect to the remediation of a historically polluted soil with Polycyclic Aromatic Hydrocarbons (PAH). In one treatment, the waste was sterilized (SSAS) prior to its application in order to assess its ability to biostimulate, as an organic amendment, the resident soil microbiota and ensuing contaminant degradation. For the other treatments, two bioaugmentation approaches were investigated; the first involved the use of the waste itself and thus implied the application of A. bisporus and the inherent microbiota of the waste. In the second treatment, SAS was sterilized and inoculated again with the fungus to assess its ability to act as a fungal carrier. All these treatments were compared with natural attenuation in terms of their impact on soil heterotrophic and PAH-degrading bacteria, fungal growth, biodiversity of soil microbiota and ability to affect PAH bioavailability and ensuing degradation and detoxification. Results clearly showed that historically PAH contaminated soil was not amenable to natural attenuation. Conversely, the addition of sterilized spent A. bisporus substrate to the soil stimulated resident soil bacteria with ensuing high removals of 3-ring PAH. Both augmentation treatments were more effective in removing highly condensed PAH, some of which known to possess a significant carcinogenic activity. Regardless of the mode of application, the present results strongly support the adequacy of SAS for environmental remediation purposes and open the way to an attractive recycling option of this waste.
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Affiliation(s)
- Carlos García-Delgado
- Department of Agricultural Chemistry and Food Sciences, University Autónoma of Madrid, 28049 Madrid, Spain.
| | - Alessandro D'Annibale
- Department for Innovation in Biological, Agro-Food and Forest systems [DIBAF], University of Tuscia, 01100 Viterbo, Italy.
| | - Lorena Pesciaroli
- Department for Innovation in Biological, Agro-Food and Forest systems [DIBAF], University of Tuscia, 01100 Viterbo, Italy.
| | - Felipe Yunta
- Department of Geology and Geochemistry, University Autónoma of Madrid, 28049 Madrid, Spain.
| | - Silvia Crognale
- Department for Innovation in Biological, Agro-Food and Forest systems [DIBAF], University of Tuscia, 01100 Viterbo, Italy.
| | - Maurizio Petruccioli
- Department for Innovation in Biological, Agro-Food and Forest systems [DIBAF], University of Tuscia, 01100 Viterbo, Italy.
| | - Enrique Eymar
- Department of Agricultural Chemistry and Food Sciences, University Autónoma of Madrid, 28049 Madrid, Spain.
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12
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Covino S, D'Annibale A, Stazi SR, Cajthaml T, Čvančarová M, Stella T, Petruccioli M. Assessment of degradation potential of aliphatic hydrocarbons by autochthonous filamentous fungi from a historically polluted clay soil. THE SCIENCE OF THE TOTAL ENVIRONMENT 2015; 505:545-554. [PMID: 25461057 DOI: 10.1016/j.scitotenv.2014.10.027] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/16/2014] [Revised: 10/02/2014] [Accepted: 10/09/2014] [Indexed: 06/04/2023]
Abstract
The present work was aimed at isolating and identifying the main members of the mycobiota of a clay soil historically contaminated by mid- and long-chain aliphatic hydrocarbons (AH) and to subsequently assess their hydrocarbon-degrading ability. All the isolates were Ascomycetes and, among them, the most interesting was Pseudoallescheria sp. 18A, which displayed both the ability to use AH as the sole carbon source and to profusely colonize a wheat straw:poplar wood chip (70:30, w/w) lignocellulosic mixture (LM) selected as the amendment for subsequent soil remediation microcosms. After a 60 d mycoaugmentation with Pseudoallescheria sp. of the aforementioned soil, mixed with the sterile LM (5:1 mass ratio), a 79.7% AH reduction and a significant detoxification, inferred by a drop in mortality of Folsomia candida from 90 to 24%, were observed. However, similar degradation and detoxification outcomes were found in the non-inoculated incubation control soil that had been amended with the sterile LM. This was due to the biostimulation exerted by the amendment on the resident microbiota, fungi in particular, the activity and density of which were low, instead, in the non-amended incubation control soil.
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Affiliation(s)
- Stefano Covino
- Laboratory of Environmental Biotechnology, Academy of Sciences of the Czech Republic, Prague, Czech Republic
| | - Alessandro D'Annibale
- Department of Innovation in Agroforestry and Biological Systems (DIBAF), University of Tuscia, Viterbo, Italy.
| | - Silvia Rita Stazi
- Department of Innovation in Agroforestry and Biological Systems (DIBAF), University of Tuscia, Viterbo, Italy
| | - Tomas Cajthaml
- Laboratory of Environmental Biotechnology, Academy of Sciences of the Czech Republic, Prague, Czech Republic; Institute of Environmental Studies, Faculty of Science, Charles University, Benátská 2, CZ-128 01 Prague 2, Czech Republic
| | - Monika Čvančarová
- Laboratory of Environmental Biotechnology, Academy of Sciences of the Czech Republic, Prague, Czech Republic
| | - Tatiana Stella
- Laboratory of Environmental Biotechnology, Academy of Sciences of the Czech Republic, Prague, Czech Republic
| | - Maurizio Petruccioli
- Department of Innovation in Agroforestry and Biological Systems (DIBAF), University of Tuscia, Viterbo, Italy
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Passatore L, Rossetti S, Juwarkar AA, Massacci A. Phytoremediation and bioremediation of polychlorinated biphenyls (PCBs): state of knowledge and research perspectives. JOURNAL OF HAZARDOUS MATERIALS 2014; 278:189-202. [PMID: 24976127 DOI: 10.1016/j.jhazmat.2014.05.051] [Citation(s) in RCA: 150] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/24/2014] [Revised: 05/15/2014] [Accepted: 05/16/2014] [Indexed: 05/20/2023]
Abstract
This review summarizes the bioremediation and phytoremediation technologies proposed so far to detoxify PCB-contaminated sites. A critical analysis about the potential and limits of the PCB pollution treatment strategies by means of plants, fungi and bacteria are elucidated, including the new insights emerged from recent studies on the rhizosphere potential and on the implementation of simultaneous aerobic and anaerobic biodegradation processes. The review describes the biodegradation and phytoremediation processes and elaborates on the environmental variables affecting contaminant degradation rates, summarizing the amendments recommended to enhance PCB degradation. Additionally, issues connected with PCB toxicology, actual field remediation strategies and economical evaluation are discussed.
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Affiliation(s)
- Laura Passatore
- Institute of Agro-environment and Forest Biology (IBAF), National Research Council (CNR), Via Salaria Km 29.300, 00015 Monterotondo (Rome), Italy; Department for Innovation in Biological, Agro-Food and Forest Systems (DIBAF), University of Tuscia, Via S. Camillo de Lellis snc, 01100 Viterbo, Italy
| | - Simona Rossetti
- Water Research Institute (IRSA), National Research Council (CNR), Via Salaria Km 29.300, 00015 Monterotondo (Rome), Italy
| | - Asha A Juwarkar
- Environmental Biotechnology Division, National Environmental Engineering Research Institute (NEERI), Nehru Marg, Nagpur 440 020, India
| | - Angelo Massacci
- Institute of Agro-environment and Forest Biology (IBAF), National Research Council (CNR), Via Salaria Km 29.300, 00015 Monterotondo (Rome), Italy.
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