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Liu M, Zhang L, Yang R, Cui H, Li Y, Li X, Huang H. Integrating metal-organic framework ZIF-8 with green modifier empowered bacteria with improved bioremediation. JOURNAL OF HAZARDOUS MATERIALS 2024; 461:132475. [PMID: 37714005 DOI: 10.1016/j.jhazmat.2023.132475] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/02/2023] [Revised: 09/02/2023] [Accepted: 09/02/2023] [Indexed: 09/17/2023]
Abstract
Suspended microorganisms often experience diminished efficacy in the bioremediation of polycyclic aromatic hydrocarbons (PAHs). In this study, the potential of zeolite imidazolate framework-8 (ZIF-8) and the eco-friendly modifier citric acid (CA) was harnessed to generate a biomimetic mineralized protective shell on the surface of Bacillus subtilis ZL09-26, resulting in an enhanced capability for PAH degradation. This investigation encompassed the integrated responses of B. subtilis ZL09-26 to ZIF-8 and ZIF-8-CA at both cellular and proteomic levels. The amalgamation of ZIF-8 and CA not only stimulated the growth and bolstered the cell viability of B. subtilis ZL09-26, but also counteracted the toxic effects of phenanthrene (PHE) stress. Remarkably, the bioremediation prowess of B. subtilis ZL09-26@ZIF-8-CA surpassed that of ZL09-26@ZIF-8 and ZL09-26, achieving a PHE removal rate of 94.14 % within 6 days. After undergoing five cycles, ZL09-26@ZIF-8-CA demonstrated an enduring PHE removal rate exceeding 83.31 %. A complex interplay of various metabolic pathways orchestrated cellular responses, enhancing PHE transport and degradation. These pathways encompassed direct PHE biodegradation, central carbon metabolism, oxidative phosphorylation, purine metabolism, and aminoacyl-tRNA biosynthesis. This study not only extends the potential applications of biomineralized organisms but also offers alternative strategies for effective contaminant management.
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Affiliation(s)
- Mina Liu
- College of Food Science and Pharmaceutical Engineering, Nanjing Normal University, Nanjing 210009, China
| | - Lei Zhang
- Jiangsu Key Laboratory of Marine Bioresources and Environment, Jiangsu Ocean University, Lianyungang 222005, China
| | - Rongrong Yang
- College of Food Science and Pharmaceutical Engineering, Nanjing Normal University, Nanjing 210009, China
| | - Haiyang Cui
- RWTH Aachen University, Templergraben 55, 52062 Aachen, Germany
| | - Yanan Li
- College of Food Science and Pharmaceutical Engineering, Nanjing Normal University, Nanjing 210009, China
| | - Xiujuan Li
- College of Food Science and Pharmaceutical Engineering, Nanjing Normal University, Nanjing 210009, China.
| | - He Huang
- College of Food Science and Pharmaceutical Engineering, Nanjing Normal University, Nanjing 210009, China
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2
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Mahto KU, Kumari S, Das S. Unraveling the complex regulatory networks in biofilm formation in bacteria and relevance of biofilms in environmental remediation. Crit Rev Biochem Mol Biol 2021; 57:305-332. [PMID: 34937434 DOI: 10.1080/10409238.2021.2015747] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Biofilms are assemblages of bacteria embedded within a matrix of extracellular polymeric substances (EPS) attached to a substratum. The process of biofilm formation is a complex phenomenon regulated by the intracellular and intercellular signaling systems. Various secondary messenger molecules such as cyclic dimeric guanosine 3',5'-monophosphate (c-di-GMP), cyclic adenosine 3',5'-monophosphate (cAMP), and cyclic dimeric adenosine 3',5'-monophosphate (c-di-AMP) are involved in complex signaling networks to regulate biofilm development in several bacteria. Moreover, the cell to cell communication system known as Quorum Sensing (QS) also regulates biofilm formation via diverse mechanisms in various bacterial species. Bacteria often switch to the biofilm lifestyle in the presence of toxic pollutants to improve their survivability. Bacteria within a biofilm possess several advantages with regard to the degradation of harmful pollutants, such as increased protection within the biofilm to resist the toxic pollutants, synthesis of extracellular polymeric substances (EPS) that helps in the sequestration of pollutants, elevated catabolic gene expression within the biofilm microenvironment, higher cell density possessing a large pool of genetic resources, adhesion ability to a wide range of substrata, and metabolic heterogeneity. Therefore, a comprehensive account of the various factors regulating biofilm development would provide valuable insights to modulate biofilm formation for improved bioremediation practices. This review summarizes the complex regulatory networks that influence biofilm development in bacteria, with a major focus on the applications of bacterial biofilms for environmental restoration.
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Affiliation(s)
- Kumari Uma Mahto
- Department of Life Science, Laboratory of Environmental Microbiology and Ecology (LEnME), National Institute of Technology, Odisha, India
| | - Swetambari Kumari
- Department of Life Science, Laboratory of Environmental Microbiology and Ecology (LEnME), National Institute of Technology, Odisha, India
| | - Surajit Das
- Department of Life Science, Laboratory of Environmental Microbiology and Ecology (LEnME), National Institute of Technology, Odisha, India
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3
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Shemesh A, Zvulunov Y, Radian A. Impact of cocultivation on the aggregation and sedimentation trends of cyanobacteria with native and modified clay minerals. Sep Purif Technol 2021. [DOI: 10.1016/j.seppur.2021.119179] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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4
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Li M, Yin H, Zhu M, Yu Y, Lu G, Dang Z. Co-metabolic and biochar-promoted biodegradation of mixed PAHs by highly efficient microbial consortium QY1. J Environ Sci (China) 2021; 107:65-76. [PMID: 34412788 DOI: 10.1016/j.jes.2021.02.002] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2020] [Revised: 01/20/2021] [Accepted: 02/01/2021] [Indexed: 05/22/2023]
Abstract
Polycyclic aromatic hydrocarbons (PAHs), typical representatives of the persistent organic pollutants (POPs), have become ubiquitous in the environment. In this study, a novel microbial consortium QY1 that performed outstanding PAHs-degrading capacity has been enriched. The degradation characteristics of single and mixed PAHs treated with QY1 were studied, and the effect of biochar on biodegradation of mixed PAHs and the potential of biochar in PAHs-heavy metal combined pollution bioremediation were also investigated. Results showed that, in single substrate system, QY1 degraded 94.5% of 500 mg/L phenanthrene (PHE) and 17.8% of 10 mg/L pyrene (PYR) after 7 days, while in PHE-PYR mixture system, the biodegradation efficiencies of PHE (500 mg/L) and PYR (10 mg/L) reached 94.0% and 96.2%, respectively, since PHE served as co-metabolic substrate to have significantly improved PYR biodegradation. Notably, with the cooperation of biochar, the biodegradations of PHE and PYR were greatly accelerated. Further, biochar could reduce the adverse impact of heavy metals (Cd2+, Cu2+, Cr2O72-) on PYR biodegradation remarkably. The sequencing analysis revealed that Methylobacterium, Burkholderia and Stenotrophomonas were the dominant genera of QY1 in almost all treatments, indicating that these genera might play key roles in PAHs biodegradation. Overall, this study provided new insights into the efficient bioremediation of PAHs-contaminated site.
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Affiliation(s)
- Min Li
- Key Laboratory of Ministry of Education on Pollution Control and Ecosystem Restoration in Industry Clusters, School of Environment and Energy, South China University of Technology, Guangdong 510006, China
| | - Hua Yin
- Key Laboratory of Ministry of Education on Pollution Control and Ecosystem Restoration in Industry Clusters, School of Environment and Energy, South China University of Technology, Guangdong 510006, China.
| | - Minghan Zhu
- Key Laboratory of Ministry of Education on Pollution Control and Ecosystem Restoration in Industry Clusters, School of Environment and Energy, South China University of Technology, Guangdong 510006, China
| | - Yuanyuan Yu
- Guangdong Provincial Key Laboratory of Petrochemical Pollution Processes and Control, School of Environmental Science and Engineering, Guangdong University of Petrochemical Technology, Guangdong 525000, China
| | - Guining Lu
- Key Laboratory of Ministry of Education on Pollution Control and Ecosystem Restoration in Industry Clusters, School of Environment and Energy, South China University of Technology, Guangdong 510006, China
| | - Zhi Dang
- Key Laboratory of Ministry of Education on Pollution Control and Ecosystem Restoration in Industry Clusters, School of Environment and Energy, South China University of Technology, Guangdong 510006, China
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5
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Biswas B, Juhasz AL, Mahmudur Rahman M, Naidu R. Modified clays alter diversity and respiration profile of microorganisms in long-term hydrocarbon and metal co-contaminated soil. Microb Biotechnol 2019; 13:522-534. [PMID: 31713319 PMCID: PMC7017831 DOI: 10.1111/1751-7915.13510] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2019] [Revised: 09/28/2019] [Accepted: 10/23/2019] [Indexed: 12/01/2022] Open
Abstract
Clays and surfactant‐modified clays (organoclays) are becoming popular as pollutant sorbents due to their high reactivity and low‐cost availability. However, the lack of field testing and data on ecotoxicity limits their application. Considering such aspects, this study assessed the impact of clay amendments to polycyclic aromatic hydrocarbons (PAHs)/cadmium (Cd)‐contaminated soil on microbial respiration profiles (active vs. inactive cells) using redox staining and the relative abundance and diversity of bacteria and archaea. These clay products are bentonite, cationic surfactant‐modified bentonite and palmitic acid‐grafted surfactant‐modified bentonite). After 70 days, the addition of bentonite and its modified forms altered microbial community structure mainly among dominant groups (Actinobacteria, Proteobacteria, Firmicutes and Chloroflexi) with effects varying depending on material loading to soil. Among amendments, fatty acid (palmitic acid) tailored cationic surfactant‐modified bentonite proved to be microbial growth supportive and significantly increased the number of respiration‐active microbial cells by 5% at a low dose of material (e.g. 1%). Even at high dose (5%), the similarity index using operational taxonomic units (OTUs) also indicates that this modified organoclay‐mixed soil provided only slightly different environment than control soil, and therefore, it could offer more biocompatibility than its counterpart organoclay at similar dose (e.g. cationic surfactant‐modified bentonite). This study promotes designing ‘eco‐safe’ clay‐based sorbents for environmental remediation.
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Affiliation(s)
- Bhabananda Biswas
- Future Industries Institute, University of South Australia, Mawson Lakes, SA, 5085, Australia.,Cooperative Research Centre for Contamination Assessment and Remediation of the Environment (CRC CARE), The University of Newcastle, ATC Building, Callaghan, NSW, 2308, Australia
| | - Albert L Juhasz
- Future Industries Institute, University of South Australia, Mawson Lakes, SA, 5085, Australia
| | - Mohammad Mahmudur Rahman
- Cooperative Research Centre for Contamination Assessment and Remediation of the Environment (CRC CARE), The University of Newcastle, ATC Building, Callaghan, NSW, 2308, Australia.,Global Centre for Environmental Remediation (GCER), The University of Newcastle, Callaghan, NSW, 2308, Australia
| | - Ravi Naidu
- Cooperative Research Centre for Contamination Assessment and Remediation of the Environment (CRC CARE), The University of Newcastle, ATC Building, Callaghan, NSW, 2308, Australia.,Global Centre for Environmental Remediation (GCER), The University of Newcastle, Callaghan, NSW, 2308, Australia
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6
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Biswas B, Warr LN, Hilder EF, Goswami N, Rahman MM, Churchman JG, Vasilev K, Pan G, Naidu R. Biocompatible functionalisation of nanoclays for improved environmental remediation. Chem Soc Rev 2019; 48:3740-3770. [PMID: 31206104 DOI: 10.1039/c8cs01019f] [Citation(s) in RCA: 50] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Among the wide range of materials used for remediating environmental contaminants, modified and functionalised nanoclays show particular promise as advanced sorbents, improved dispersants, or biodegradation enhancers. However, many chemically modified nanoclay materials are incompatible with living organisms when they are used in natural systems with detrimental implications for ecosystem recovery. Here we critically review the pros and cons of functionalised nanoclays and provide new perspectives on the synthesis of environmentally friendly varieties. Particular focus is given to finding alternatives to conventional surfactants used in modified nanoclay products, and to exploring strategies in synthesising nanoclay-supported metal and metal oxide nanoparticles. A large number of promising nanoclay-based sorbents are yet to satisfy environmental biocompatibility in situ but opportunities are there to tailor them to produce "biocompatible" or regenerative/reusable materials.
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Affiliation(s)
- Bhabananda Biswas
- Future Industries Institute, University of South Australia, Mawson Lakes, SA 5095, Australia. and Cooperative Research Centre for Contamination Assessment and Remediation of the Environment (CRC CARE), ACT building, The University of Newcastle, Callaghan, NSW 2308, Australia.
| | - Laurence N Warr
- Institute for Geography and Geology, University of Greifswald, D-17487 Greifswald, Germany
| | - Emily F Hilder
- Future Industries Institute, University of South Australia, Mawson Lakes, SA 5095, Australia.
| | - Nirmal Goswami
- School of Engineering, University of South Australia, Mawson Lakes, SA 5095, Australia
| | - Mohammad M Rahman
- Cooperative Research Centre for Contamination Assessment and Remediation of the Environment (CRC CARE), ACT building, The University of Newcastle, Callaghan, NSW 2308, Australia. and Global Centre for Environmental Remediation, the University of Newcastle, Callaghan, NSW 2308, Australia.
| | - Jock G Churchman
- School of Agriculture, Food and Wine, University of Adelaide, Waite Campus, Urrbrae, SA 5064, Australia
| | - Krasimir Vasilev
- School of Engineering, University of South Australia, Mawson Lakes, SA 5095, Australia
| | - Gang Pan
- Centre of Integrated Water-Energy-Food Studies, School of Animal, Rural and Environmental Sciences, Nottingham Trent University, Southwell, NG25 0QF, UK
| | - Ravi Naidu
- Cooperative Research Centre for Contamination Assessment and Remediation of the Environment (CRC CARE), ACT building, The University of Newcastle, Callaghan, NSW 2308, Australia. and Global Centre for Environmental Remediation, the University of Newcastle, Callaghan, NSW 2308, Australia.
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7
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Ye J, Chen X, Chen C, Bate B. Emerging sustainable technologies for remediation of soils and groundwater in a municipal solid waste landfill site -- A review. CHEMOSPHERE 2019; 227:681-702. [PMID: 31022669 DOI: 10.1016/j.chemosphere.2019.04.053] [Citation(s) in RCA: 44] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/01/2019] [Revised: 04/05/2019] [Accepted: 04/06/2019] [Indexed: 06/09/2023]
Abstract
Remediation of soils and groundwater in a municipal solid wastes (MSW) landfill site emerges as a global challenge to the living environment on earth with significant market potential. Unlike contaminants in an industry or agricultural site, contaminants from MSW landfills are diverse, primarily consisting of chemical oxygen demand (COD), inorganic matter (ammonia-nitrogen, nitrate-nitrogen, total phosphorus) and heavy metals. This renders new challenges to remediation contaminants of different characters altogether. A status quo of existing technologies, including permeable reactive barriers, electrokinetic remediation, microbial remediation, and injection of either solubilizing agents or micro or nanobubbles were thoroughly reviewed, with an emphasis on removal efficiency based on existing projects at lab, pilot or field scales. A design chart tailored for the remediation of a landfill contaminated site was developed, verified by a few case studies, which supplement the chart. Future trends of technical innovation (such as multi-layer permeable reactive barriers (PRBs)) and challenges (such as flow pattern) were identified.
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Affiliation(s)
- Jianshe Ye
- Graduate Research Assistant, Institute of Geotechnical Engineering, College of Civil Engineering and Architecture, MOE Key Laboratory of Soft Soils and Geoenvironmental Engineering, Zhejiang University, China
| | - Xiao Chen
- Graduate Research Assistant, Institute of Geotechnical Engineering, College of Civil Engineering and Architecture, MOE Key Laboratory of Soft Soils and Geoenvironmental Engineering, Zhejiang University, China
| | - Chao Chen
- Graduate Research Assistant, Institute of Geotechnical Engineering, College of Civil Engineering and Architecture, MOE Key Laboratory of Soft Soils and Geoenvironmental Engineering, Zhejiang University, China
| | - Bate Bate
- Institute of Geotechnical Engineering, College of Civil Engineering and Architecture, Zhejiang University, Hangzhou, China.
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8
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Liu Z, Zhang Y, Han F, Yan P, Liu B, Zhou Q, Min F, He F, Wu Z. Investigation on the adsorption of phosphorus in all fractions from sediment by modified maifanite. Sci Rep 2018; 8:15619. [PMID: 30353133 PMCID: PMC6199331 DOI: 10.1038/s41598-018-34144-w] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2018] [Accepted: 10/07/2018] [Indexed: 12/15/2022] Open
Abstract
Sediment phosphorus (P) removal is crucial for the control of eutrophication, and the in-situ adsorption is an essential technique. In this study, modified maifanite (MMF) prepared by acidification, alkalization, salinization, calcination and combined modifications, respectively, were first applied to treat sediment P. The morphology and microstructure of MMF samples were characterized by X-ray fluorescence (XRF), Fourier transform infrared (FTIR), X-ray diffraction (XRD), scanning electron microscope (SEM) and Brunauer-Emmett-Teller (BET). Various adsorption parameters were tested, such as dosage of maifanite, time, operation pH and temperature. The adsorption mechanisms were also investigated and discussed. Results showed that CMMF-H2.5-400 (2.5 mol/L H2SO4 and calcined at 400 °C) exhibited the highest P adsorption capacity. Thus, it was selected as the in-situ adsorbent material to control the internal P loading. Under the optimal conditions of dynamic experiments, the adsorption rates of TP, IP, OP, Fe/Al-P and Ca-P by CMMF-H2.5-400 were 37.22%, 44.41%, 25.54%, 26.09% and 60.34%, respectively. The adsorption mechanisms analysis revealed that the adsorption of P onto CMMF-H2.5-400 mainly by ligand exchange. Results of this work indicated that the modification treatment could improve the adsorption capacity of maifanite, and CMMF-H2.5-400 could be further applied to eutrophication treatment.
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Affiliation(s)
- Zisen Liu
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, 430072, China.,University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Yi Zhang
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, 430072, China.
| | - Fan Han
- School of Resources and Environmental Engineering, Wuhan University of Technology, Wuhan, 430070, China
| | - Pan Yan
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, 430072, China.,University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Biyun Liu
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, 430072, China
| | - Qiaohong Zhou
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, 430072, China
| | - Fenli Min
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, 430072, China.,University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Feng He
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, 430072, China
| | - Zhenbin Wu
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, 430072, China
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9
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The Fate of Chemical Pollutants with Soil Properties and Processes in the Climate Change Paradigm—A Review. SOIL SYSTEMS 2018. [DOI: 10.3390/soilsystems2030051] [Citation(s) in RCA: 42] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Heavy metal(loid)s and organic contaminants are two major groups of pollutants in soils. The fate and exposure of such pollutants in soil depends on their chemical properties, speciation, and soil properties. Soil properties and processes that control the toxicological aspects of pollutants include temperature, moisture, organic matter, mineral fractions, and microbial activities. These processes are vulnerable to climate change associated with global warming, including increased incidences of extreme rainfall, extended dry periods, soil erosion, and a rise in sea level. Here we explain evidence that relates to the effects of climate change-driven soil processes on the mobility, transport, and storage of pollutants in soil. The review found that changes in climate could increase human exposure to soil contaminants mainly due to processes involving soil organic carbon (SOC), surface runoff, redox state, and microbial community. However, uncertainties remain in relation to the extent of contaminant toxicity to human health, which is linked to global change drivers.
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10
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Tarafdar A, Sarkar TK, Chakraborty S, Sinha A, Masto RE. Biofilm development of Bacillus thuringiensis on MWCNT buckypaper: Adsorption-synergic biodegradation of phenanthrene. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2018; 157:327-334. [PMID: 29627417 DOI: 10.1016/j.ecoenv.2018.03.090] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/11/2017] [Revised: 03/29/2018] [Accepted: 03/29/2018] [Indexed: 06/08/2023]
Abstract
Adsorption-synergic biodegradation of a model PAH (phenanthrene, Phe) on MWCNT buckypaper surface with a potential PAH biodegrading bacterial strain Bacillus thuringiensis AT.ISM.11 has been studied in aqueous medium. Adsorption of Phe on buckypaper follows Dubinin-Ashtakhov model (R2 = 0.9895). MWCNT generally exerts toxicity to microbes but adsorbed layer of Phe prevents the direct contact between MWCNT and bacterial cell wall. FESEM study suggests that formation of biofilms occurred on buckypaper. Lower layer cells are disrupted and flattened as they are in direct contact with MWCNT but the upper layer cells of the developed biofilm are fully intact and functional. Force-distance curves of Bacillus thuringiensis AT.ISM.11 with buckypaper indicates adhesion forces varied from -10.3 to -15.6 nN with increasing contact time, which supports the phenomenon of biofilm formation. AFM surface statistical data of buckypaper suggests increase in bacterial cell count increases the Rms roughness (95.7242-632.565) while adhering to the buckypaper surface to form biofilm. We observed an enhanced Phe biodegradation of 93.81% from that of the 65.71% in 15 days' study period, using buckypaper as a bio-carrier or a matrix for the microbial growth. GC-MS study identified phthalic acid ester as metabolite, which is the evidence of protocatechuate pathway degradation of Phe. Current study enlightens the interaction between hydrocarbons and microbes in presence of MWCNT buckypaper matrix in aqueous system for the first time. An enhancement in biodegradation of Phe by 28.10% has also been reported which can be a basis for CNT aided enhanced biodegradation studies in future.
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Affiliation(s)
- Abhrajyoti Tarafdar
- Division of Environmental Science and Ecological Engineering, Korea University, Republic of Korea.
| | - Tarun Kanti Sarkar
- Chemical Science Division, CSIR-Indian Institute of Petroleum, Dehradun, India.
| | - Sourav Chakraborty
- Department of Environmental science, Southeast Missouri State University, USA.
| | - Alok Sinha
- Department of Environmental Science and Engineering, Indian Institute of Technology (Indian School of Mines), Dhanbad, India.
| | - Reginald E Masto
- Environmental Management Division, Central Institute of Mining and Fuel Research (Digwadih Campus), Dhanbad, India.
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11
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Wawra A, Friesl-Hanl W, Puschenreiter M, Soja G, Reichenauer T, Roithner C, Watzinger A. Degradation of polycyclic aromatic hydrocarbons in a mixed contaminated soil supported by phytostabilisation, organic and inorganic soil additives. THE SCIENCE OF THE TOTAL ENVIRONMENT 2018; 628-629:1287-1295. [PMID: 30045550 DOI: 10.1016/j.scitotenv.2018.02.156] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/18/2017] [Revised: 02/12/2018] [Accepted: 02/13/2018] [Indexed: 06/08/2023]
Abstract
In soil, mixed contamination with potentially toxic trace elements and polycyclic aromatic hydrocarbons (PAHs) may persist for a long time due to strong adsorption to the soil matrix and to its toxicity to microorganism. We conducted an incubation batch experiment to test the effect of soil amendments (biochar, gravel sludge, iron oxides) on the immobilisation of trace elements. To monitor microbial degradation, a 13C-PHE (phenanthrene) label was introduced to soil for 13C-PLFA (phospholipid fatty acid) analysis. Soil amendments increased soil pH, reduced mobility of NH4NO3-extractable trace elements Cd and Zn, and increased mobile Cu. A small consortium of PHE degraders was identified mainly in the microbial groups of gram-negative bacteria and actinomycetes. The degradation process of PHE peaked 9days after incubation start. PAH concentrations remained constant in the soil within the 30-day incubation, except for the easily available 13C-PHE in the amended treatment. In order to test the effect of plants and soil amendments under more realistic conditions, we also conducted an outdoor pot experiment with black locust (Robinia pseudoacacia Nyirsegi). Furthermore, soil amendments increased the mobility of soil Cu and As and decreased the mobility of Cd, Pb and Sb. The uptake of trace elements to leaves was low. Σ 16 U.S. EPA PAHs were significantly reduced only in the combined treatment of black locust and soil amendments after 12months of plant growth. Soil amendment-assisted phytoremediation showed a high efficiency in PAH dissipation and may be a useful remediation technique for mixed contaminated soils.
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Affiliation(s)
- Anna Wawra
- AIT Austrian Institute of Technology GmbH, Environmental Resources & Technologies, Konrad Lorenz Straße 24, 3430 Tulln, Austria; University of Natural Resources and Life Sciences, Vienna (BOKU), Institute of Soil Research, Konrad Lorenz Straße 24, 3430 Tulln, Austria
| | - Wolfgang Friesl-Hanl
- AIT Austrian Institute of Technology GmbH, Environmental Resources & Technologies, Konrad Lorenz Straße 24, 3430 Tulln, Austria.
| | - Markus Puschenreiter
- University of Natural Resources and Life Sciences, Vienna (BOKU), Institute of Soil Research, Konrad Lorenz Straße 24, 3430 Tulln, Austria
| | - Gerhard Soja
- AIT Austrian Institute of Technology GmbH, Environmental Resources & Technologies, Konrad Lorenz Straße 24, 3430 Tulln, Austria
| | - Thomas Reichenauer
- AIT Austrian Institute of Technology GmbH, Environmental Resources & Technologies, Konrad Lorenz Straße 24, 3430 Tulln, Austria
| | - Caroline Roithner
- AIT Austrian Institute of Technology GmbH, Environmental Resources & Technologies, Konrad Lorenz Straße 24, 3430 Tulln, Austria
| | - Andrea Watzinger
- AIT Austrian Institute of Technology GmbH, Environmental Resources & Technologies, Konrad Lorenz Straße 24, 3430 Tulln, Austria
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12
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Wawra A, Friesl-Hanl W, Jäger A, Puschenreiter M, Soja G, Reichenauer T, Watzinger A. Investigations of microbial degradation of polycyclic aromatic hydrocarbons based on 13C-labeled phenanthrene in a soil co-contaminated with trace elements using a plant assisted approach. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2018; 25:6364-6377. [PMID: 29249024 DOI: 10.1007/s11356-017-0941-y] [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: 06/27/2017] [Accepted: 12/04/2017] [Indexed: 06/07/2023]
Abstract
Co-contaminations of soils with organic and inorganic pollutants are a frequent environmental problem. Due to their toxicity and recalcitrance, the heterogeneous pollutants may persist in soil. The hypothesis of this study was that degradation of polycyclic aromatic hydrocarbons (PAHs) is enhanced if heavy metals in soil are immobilized and their bioavailability reduced. For metal immobilization and enhanced biodegradation, distinct mineral and organic soil amendments (iron oxides, gravel sludge, biochar) were deployed in an incubation batch experiment. The second part of the experiment consisted of a greenhouse pot experiment applying fast-growing and pollution-tolerant woody plants (willow and black locust). Soil amendments initially immobilized NH4NO3-extractable zinc, cadmium, and lead; after 100 days of incubation, soil amendments showed reductions only for cadmium and a tendency to enhance arsenic mobility. In order to monitor the remediation success, a 13C-phenanthrene (PHE) label was applied. 13C-phospholipid fatty acid analysis (13C-PLFA) further enabled the identification of PHE-degrading soil microorganisms. Both experiments exhibited a similar PLFA profile. Gram-negative bacteria (esp. cy17:0, 16:1ω7 + 6, 18:1ω7c) were the most significant microbial group taking up 13C-PHE. Plants effectively increased the label uptake by gram-positive bacteria and increased the biomass of the fungal biomarker, although their contribution to the degradation process was minor. Plants tended to prolong PAH dissipation in soil; at the end of the experiment, however, all treatments showed equally low total PAH concentrations in soil. While black locust plants tended not to take up potentially toxic trace elements, willows accumulated them in their leaves. The results of this study show that the chosen treatments did not enhance the remediation of the experimental soil.
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Affiliation(s)
- Anna Wawra
- Environmental Resources & Technologies, AIT Austrian Institute of Technology GmbH, Konrad-Lorenz-Straße 24, 3430, Tulln, Austria
- Institute of Soil Research, University of Natural Resources and Life Sciences (BOKU), Konrad-Lorenz-Straße 24, 3430, Tulln, Austria
| | - Wolfgang Friesl-Hanl
- Environmental Resources & Technologies, AIT Austrian Institute of Technology GmbH, Konrad-Lorenz-Straße 24, 3430, Tulln, Austria.
| | - Anna Jäger
- Environmental Resources & Technologies, AIT Austrian Institute of Technology GmbH, Konrad-Lorenz-Straße 24, 3430, Tulln, Austria
| | - Markus Puschenreiter
- Institute of Soil Research, University of Natural Resources and Life Sciences (BOKU), Konrad-Lorenz-Straße 24, 3430, Tulln, Austria
| | - Gerhard Soja
- Environmental Resources & Technologies, AIT Austrian Institute of Technology GmbH, Konrad-Lorenz-Straße 24, 3430, Tulln, Austria
| | - Thomas Reichenauer
- Environmental Resources & Technologies, AIT Austrian Institute of Technology GmbH, Konrad-Lorenz-Straße 24, 3430, Tulln, Austria
| | - Andrea Watzinger
- Environmental Resources & Technologies, AIT Austrian Institute of Technology GmbH, Konrad-Lorenz-Straße 24, 3430, Tulln, Austria
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13
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Liu G, Zhong H, Yang X, Liu Y, Shao B, Liu Z. Advances in applications of rhamnolipids biosurfactant in environmental remediation: A review. Biotechnol Bioeng 2018; 115:796-814. [PMID: 29240227 DOI: 10.1002/bit.26517] [Citation(s) in RCA: 83] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2017] [Revised: 10/05/2017] [Accepted: 12/04/2017] [Indexed: 12/30/2022]
Abstract
The objective of this review is to provide a comprehensive overview of the advances in the applications of rhamnolipids biosurfactants in soil and ground water remediation for removal of petroleum hydrocarbon and heavy metal contaminants. The properties of rhamnolipids associated with the contaminant removal, that is, solubilization, emulsification, dispersion, foaming, wetting, complexation, and the ability to modify bacterial cell surface properties, were reviewed in the first place. Then current remediation technologies with integration of rhamnolipid were summarized, and the effects and mechanisms for rhamnolipid to facilitate contaminant removal for these technologies were discussed. Finally rhamnolipid-based methods for remediation of the sites co-contaminated by petroleum hydrocarbons and heavy metals were presented and discussed. The review is expected to enhance our understanding on environmental aspects of rhamnolipid and provide some important information to guide the extending use of this fascinating chemical in remediation applications.
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Affiliation(s)
- Guansheng Liu
- State Key Laboratory of Water Resources and Hydropower Engineering Science, Wuhan University, Wuhan, Hubei, China.,School of Water Resources and Hydropower Engineering, Wuhan University, Wuhan, Hubei, China
| | - Hua Zhong
- State Key Laboratory of Water Resources and Hydropower Engineering Science, Wuhan University, Wuhan, Hubei, China.,School of Water Resources and Hydropower Engineering, Wuhan University, Wuhan, Hubei, China
| | - Xin Yang
- College of Environmental Science and Engineering, Hunan University, Changsha, Hunan, China
| | - Yang Liu
- College of Environmental Science and Engineering, Hunan University, Changsha, Hunan, China
| | - Binbin Shao
- College of Environmental Science and Engineering, Hunan University, Changsha, Hunan, China
| | - Zhifeng Liu
- College of Environmental Science and Engineering, Hunan University, Changsha, Hunan, China
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14
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Ugochukwu UC, Fialips CI. Crude oil polycyclic aromatic hydrocarbons removal via clay-microbe-oil interactions: Effect of acid activated clay minerals. CHEMOSPHERE 2017; 178:65-72. [PMID: 28319743 DOI: 10.1016/j.chemosphere.2017.03.035] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/22/2016] [Revised: 02/27/2017] [Accepted: 03/09/2017] [Indexed: 05/21/2023]
Abstract
Acid treatment of clay minerals is known to modify their properties such as increase their surface area and surface acidity, making them suitable as catalysts in many chemical processes. However, the role of these surface properties during biodegradation processes of polycyclic aromatic hydrocarbons (PAHs) is only known for mild acid (0.5 M Hydrochloric acid) treated clays. Four different clay minerals were used for this study: a montmorillonite, a saponite, a palygorskite and a kaolinite. They were treated with 3 M hydrochloric acid to produce acid activated clay minerals. The role of the acid activated montmorillonite, saponite, palygorskite and kaolinite in comparison with the unmodified clay minerals in the removal of PAHs during biodegradation was investigated in microcosm experiments. The microcosm experiments contained micro-organisms, oil, and clays in aqueous medium with a hydrocarbon degrading microorganism community predominantly composed of Alcanivorax spp. Obtained results indicated that acid activated clays and unmodified kaolinite did not enhance the biodegradation of the PAHs whereas unmodified montmorillonite, palygorskite and saponite enhanced their biodegradation. In addition, unmodified palygorskite adsorbed the PAHs significantly due to its unique channel structure.
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Affiliation(s)
- Uzochukwu C Ugochukwu
- SHELL Centre for Environmental Management & Control, University of Nigeria, Enugu Campus, Enugu State, Nigeria.
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15
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Ye S, Zeng G, Wu H, Zhang C, Dai J, Liang J, Yu J, Ren X, Yi H, Cheng M, Zhang C. Biological technologies for the remediation of co-contaminated soil. Crit Rev Biotechnol 2017; 37:1062-1076. [DOI: 10.1080/07388551.2017.1304357] [Citation(s) in RCA: 311] [Impact Index Per Article: 44.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- Shujing Ye
- College of Environmental Science and Engineering, Hunan University, Changsha, PR China
- Key Laboratory of Environmental Biology and Pollution Control, Hunan University, Ministry of Education, Changsha, PR China
| | - Guangming Zeng
- College of Environmental Science and Engineering, Hunan University, Changsha, PR China
- Key Laboratory of Environmental Biology and Pollution Control, Hunan University, Ministry of Education, Changsha, PR China
| | - Haipeng Wu
- College of Environmental Science and Engineering, Hunan University, Changsha, PR China
- Key Laboratory of Environmental Biology and Pollution Control, Hunan University, Ministry of Education, Changsha, PR China
- Changjiang River Scientific Research Institute, Wuhan, PR China
| | - Chang Zhang
- College of Environmental Science and Engineering, Hunan University, Changsha, PR China
- Key Laboratory of Environmental Biology and Pollution Control, Hunan University, Ministry of Education, Changsha, PR China
| | - Juan Dai
- College of Environmental Science and Engineering, Hunan University, Changsha, PR China
- Key Laboratory of Environmental Biology and Pollution Control, Hunan University, Ministry of Education, Changsha, PR China
- Changjiang River Scientific Research Institute, Wuhan, PR China
| | - Jie Liang
- College of Environmental Science and Engineering, Hunan University, Changsha, PR China
- Key Laboratory of Environmental Biology and Pollution Control, Hunan University, Ministry of Education, Changsha, PR China
| | - Jiangfang Yu
- College of Environmental Science and Engineering, Hunan University, Changsha, PR China
- Key Laboratory of Environmental Biology and Pollution Control, Hunan University, Ministry of Education, Changsha, PR China
| | - Xiaoya Ren
- College of Environmental Science and Engineering, Hunan University, Changsha, PR China
- Key Laboratory of Environmental Biology and Pollution Control, Hunan University, Ministry of Education, Changsha, PR China
| | - Huan Yi
- College of Environmental Science and Engineering, Hunan University, Changsha, PR China
- Key Laboratory of Environmental Biology and Pollution Control, Hunan University, Ministry of Education, Changsha, PR China
| | - Min Cheng
- College of Environmental Science and Engineering, Hunan University, Changsha, PR China
- Key Laboratory of Environmental Biology and Pollution Control, Hunan University, Ministry of Education, Changsha, PR China
| | - Chen Zhang
- College of Environmental Science and Engineering, Hunan University, Changsha, PR China
- Key Laboratory of Environmental Biology and Pollution Control, Hunan University, Ministry of Education, Changsha, PR China
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16
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Biswas B, Sarkar B, Rusmin R, Naidu R. Mild acid and alkali treated clay minerals enhance bioremediation of polycyclic aromatic hydrocarbons in long-term contaminated soil: A 14C-tracer study. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2017; 223:255-265. [PMID: 28131473 DOI: 10.1016/j.envpol.2017.01.022] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/13/2016] [Revised: 01/10/2017] [Accepted: 01/11/2017] [Indexed: 06/06/2023]
Abstract
Bioremediation of polycyclic aromatic hydrocarbon (PAH)-contaminated soils requires a higher microbial viability and an increased PAH bioavailability. The clay/modified clay-modulated bacterial degradation could deliver a more efficient removal of PAHs in soils depending on the bioavailability of the compounds. In this study, we modified clay minerals (smectite and palygorskite) with mild acid (HCl) and alkali (NaOH) treatments (0.5-3 M), which increased the surface area and pore volume of the products, and removed the impurities without collapsing the crystalline structure of clay minerals. In soil incubation studies, supplements with the clay products increased bacterial growth in the order: 0.5 M HCl ≥ unmodified ≥ 0.5 M NaOH ≥ 3 M NaOH ≥ 3 M HCl for smectite, and 0.5 M HCl ≥ 3 M NaOH ≥ 0.5 M NaOH ≥ 3 M HCl ≥ unmodified for palygorskite. A14C-tracing study showed that the mild acid/alkali-treated clay products increased the PAH biodegradation (5-8%) in the order of 0.5 M HCl ≥ unmodified > 3 M NaOH ≥ 0.5 M NaOH for smectite, and 0.5 M HCl > 0.5 M NaOH ≥ unmodified ≥ 3 M NaOH for palygorskite. The biodegradation was correlated (r = 0.81) with the bioavailable fraction of PAHs and microbial growth as affected particularly by the 0.5 M HCl and 0.5 M NaOH-treated clay minerals. These results could be pivotal in developing a clay-modulated bioremediation technology for cleaning up PAH-contaminated soils and sediments in the field.
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Affiliation(s)
- Bhabananda Biswas
- Future Industries Institute, University of South Australia, Mawson Lakes Campus, SA 5095, Australia; Cooperative Research Centre for Contamination Assessment and Remediation of the Environment, ACT Building, The University of Newcastle, Callaghan, NSW 2308, Australia.
| | - Binoy Sarkar
- Future Industries Institute, University of South Australia, Mawson Lakes Campus, SA 5095, Australia; Department of Geological Sciences, Indiana University, Bloomington, IN 47405, USA.
| | - Ruhaida Rusmin
- Future Industries Institute, University of South Australia, Mawson Lakes Campus, SA 5095, Australia
| | - Ravi Naidu
- Cooperative Research Centre for Contamination Assessment and Remediation of the Environment, ACT Building, The University of Newcastle, Callaghan, NSW 2308, Australia; Global Centre for Environmental Remediation (GCER), Faculty of Science and Information Technology, The University of Newcastle, Callaghan, NSW 2308, Australia.
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17
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Biswas B, Sarkar B, Naidu R. Bacterial mineralization of phenanthrene on thermally activated palygorskite: A 14C radiotracer study. THE SCIENCE OF THE TOTAL ENVIRONMENT 2017; 579:709-717. [PMID: 27863871 DOI: 10.1016/j.scitotenv.2016.11.037] [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] [Received: 06/23/2016] [Revised: 10/31/2016] [Accepted: 11/06/2016] [Indexed: 06/06/2023]
Abstract
Clay-bacterial interaction can significantly influence the biodegradation of organic contaminants in the environment. A moderate heat treatment of palygorskite could alter the physicochemical properties of the clay mineral and thus support the growth and function of polycyclic aromatic hydrocarbon (PAH)-degrading bacteria. By using 14C-labelled phenanthrene and a model bacterium Burkholderia sartisoli, we studied the mineralization of phenanthrene on the surface of a moderately heat-treated (up to 400°C) palygorskite. The heat treatment at 400°C induced a reduction of binding sites (e.g., by the elimination of organic matter and/or channel shrinkage) in the palygorskite and thus imparted a weaker sequestration of phenanthrene on its surface and within the pores. As a result, a supplement with the thermally modified palygorskite (400°C) significantly increased (20-30%; p<0.05) the biomineralization of total phenanthrene in a simulated soil slurry system. These results are highly promising to develop a clay mineral based technology for the bioremediation of PAH contaminants in water and soil environments.
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Affiliation(s)
- Bhabananda Biswas
- Future Industries Institute, University of South Australia, Mawson Lakes Campus, SA 5095, Australia; Cooperative Research Centre for Contamination Assessment and Remediation of the Environment, ACT Building, University of Newcastle, Callaghan, NSW 2308, Australia.
| | - Binoy Sarkar
- Future Industries Institute, University of South Australia, Mawson Lakes Campus, SA 5095, Australia.
| | - Ravi Naidu
- Cooperative Research Centre for Contamination Assessment and Remediation of the Environment, ACT Building, University of Newcastle, Callaghan, NSW 2308, Australia; Global Centre for Environmental Remediation (GCER), Faculty of Science and Information Technology, University of Newcastle, Callaghan, NSW 2308, Australia.
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18
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Biswas B, Sarkar B, Mandal A, Naidu R. Specific adsorption of cadmium on surface-engineered biocompatible organoclay under metal-phenanthrene mixed-contamination. WATER RESEARCH 2016; 104:119-127. [PMID: 27522022 DOI: 10.1016/j.watres.2016.08.009] [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: 03/31/2016] [Revised: 07/04/2016] [Accepted: 08/04/2016] [Indexed: 06/06/2023]
Abstract
Bioremediation of polycyclic aromatic hydrocarbons (PAHs) is extremely challenging when they coexist with heavy metals. This constrain has led to adsorption-based techniques that help immobilize the metals and reduce toxicity. However, the adsorbents can also non-selectively bind the organic compounds, which reduces their bioavailability. In this study we developed a surface-engineered organoclay (Arquad® 2HT-75-bentonite-palmitic acid) which enhanced bacterial proliferation and adsorbed cadmium, but elevated phenanthrene bioavailability. Adsorption models of single and binary solutes revealed that the raw bentonite adsorbed cadmium and phenanthrene non-selectively at the same binding sites and sequestrated phenanthrene. In contrast, cadmium selectively bound to the deprotonated state of carboxyl groups in the organoclay and phenanthrene on the outer surface of the adsorbent led to a microbially congenial microenvironment with a higher phenanthrene bioavailability. This study provided valuable information which would be highly important for developing a novel clay-modulated bioremediation technology for cleaning up PAHs under mixed-contaminated situations.
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Affiliation(s)
- Bhabananda Biswas
- Future Industries Institute, University of South Australia, Mawson Lakes Campus, SA 5095, Australia; Cooperative Research Centre for Contamination Assessment and Remediation of the Environment, ACT Building, University of Newcastle, Callaghan, NSW 2308, Australia.
| | - Binoy Sarkar
- Future Industries Institute, University of South Australia, Mawson Lakes Campus, SA 5095, Australia; Department of Geological Sciences, Indiana University, Bloomington, IN 47405, USA.
| | - Asit Mandal
- Indian Council of Agricultural Research (ICAR), Indian Institute of Soil Science, Bhopal, India
| | - Ravi Naidu
- Cooperative Research Centre for Contamination Assessment and Remediation of the Environment, ACT Building, University of Newcastle, Callaghan, NSW 2308, Australia; Global Centre for Environmental Remediation (GCER), Faculty of Science and Information Technology, University of Newcastle, Callaghan, NSW 2308, Australia.
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