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Sorn S, Hara-Yamamura H, Vet S, Xiao M, Hoek EMV, Honda R. Biological treatment of perfluorooctanesulfonic acid (PFOS) using microbial capsules of a polysulfone membrane. CHEMOSPHERE 2023; 329:138585. [PMID: 37028728 DOI: 10.1016/j.chemosphere.2023.138585] [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: 11/09/2022] [Revised: 03/30/2023] [Accepted: 04/01/2023] [Indexed: 05/03/2023]
Abstract
Perfluorooctanesulfonic acid (PFOS) is a persistent organic substance that has been extensively applied in many industries and causes severe, widespread adverse health impacts on humans and the environment. The development of an effective PFOS treatment method with affordable operational costs has been expected. This study proposes the biological treatment of PFOS using microbial capsules enclosing a PFOS-reducing microbial consortium. The objective of this study was to evaluate the performance of the polymeric membrane encapsulation technique for the biological removal of PFOS. First, a PFOS-reducing bacterial consortium, composed of Paracoccus (72%), Hyphomicrobium (24%), and Micromonosporaceae (4%), was enriched from activated sludge by acclimation and subsequent subculturing with PFOS containing media. The bacterial consortium was first immobilized in alginate gel beads, then enclosed in membrane capsules by coating the gel beads with a 5% or 10% polysulfone (PSf) membrane. The introduction of microbial membrane capsules could increase PFOS reduction to between 52% and 74% compared with free cell suspension, which reduced by 14% over three weeks. Microbial capsules coated with 10% PSf membrane demonstrated the highest PFOS reduction at 80% and physical stability for six weeks. Candidate metabolites including perfluorobutanoic acid (PFBA) and 3,3,3- trifluoropropionic acid were detected by FTMS, suggesting the possible biological degradation of PFOS. In microbial membrane capsules, the initial adsorption of PFOS on the shell membrane layer enhanced subsequent biosorption and biological degradation by PFOS-reducing bacteria immobilized in the core alginate gel beads. The 10%-PSf microbial capsules exhibited a thicker membrane layer with the fabric structure of a polymer network, which maintained longer physical stability than 5%-PSf microbial capsules. This outcome suggests the potential application of microbial membrane capsules to PFOS-contaminated water treatment.
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Affiliation(s)
- Sovannlaksmy Sorn
- Graduate School of Natural Science and Technology, Kanazawa University, Japan
| | | | - Sreyla Vet
- Graduate School of Natural Science and Technology, Kanazawa University, Japan
| | - Minhao Xiao
- Department of Civil and Environmental Engineering, University of California, Los Angeles, USA
| | - Eric M V Hoek
- Department of Civil and Environmental Engineering, University of California, Los Angeles, USA
| | - Ryo Honda
- Faculty of Geosciences and Civil Engineering, Kanazawa University, Japan; Department of Civil and Environmental Engineering, University of California, Los Angeles, USA.
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Lan T, Huang J, Ouyang Y, Yi K, Yu H, Zhang W, Zhang C, Li S. QQ-PAC core-shell structured quorum quenching beads for potential membrane antifouling properties. Enzyme Microb Technol 2021; 148:109813. [PMID: 34116759 DOI: 10.1016/j.enzmictec.2021.109813] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2020] [Revised: 04/06/2021] [Accepted: 04/29/2021] [Indexed: 10/21/2022]
Abstract
Quorum quenching (QQ) has been proven to be an effective method to reduce MBR membrane biological contamination. In this paper, a novel and efficient QQ-PAC core-shell beads were prepared for mitigating the membrane contamination. The bead was composed of two parts: QQ bacteria embedded in the core and PAC in the shell. The microstructure of the bead was observed by scanning electron microscopy (SEM) and the functional groups were revealed by Fourier transform infrared spectroscopy (FTIR). Meanwhile, the mechanical strength, swelling property, penetration property and QQ activity of the core bead, the core shell-without PAC bead and the core shell-with PAC bead were compared. The core shell-with PAC structure improved the adsorption capacity under good mass transfer conditions. Besides, the combined effect of QQ bacteria and PAC enhanced the QQ effect and alleviated the process of MBR membrane biological contamination consequently. Therefore, the QQ-PAC core-shell beads have a potential possibility in MBR membrane fouling control as the immobilization technology of QQ bacteria.
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Affiliation(s)
- Tian Lan
- College of Environmental Science and Engineering, Hunan University, Changsha, Hunan, 410082, China; Key Laboratory of Environmental Biology and Pollution Control, Hunan University, Ministry of Education, Changsha, Hunan, 410082, China
| | - Jinhui Huang
- College of Environmental Science and Engineering, Hunan University, Changsha, Hunan, 410082, China; Key Laboratory of Environmental Biology and Pollution Control, Hunan University, Ministry of Education, Changsha, Hunan, 410082, China.
| | - Yichen Ouyang
- College of Environmental Science and Engineering, Hunan University, Changsha, Hunan, 410082, China; Key Laboratory of Environmental Biology and Pollution Control, Hunan University, Ministry of Education, Changsha, Hunan, 410082, China; Hunan Provincial Communications Planning, Survey & Design Institute Co., Ltd., Changsha, Hunan, 410008, China
| | - Kaixin Yi
- College of Environmental Science and Engineering, Hunan University, Changsha, Hunan, 410082, China; Key Laboratory of Environmental Biology and Pollution Control, Hunan University, Ministry of Education, Changsha, Hunan, 410082, China
| | - Hanbo Yu
- College of Environmental Science and Engineering, Hunan University, Changsha, Hunan, 410082, China; Key Laboratory of Environmental Biology and Pollution Control, Hunan University, Ministry of Education, Changsha, Hunan, 410082, China
| | - Wei Zhang
- College of Environmental Science and Engineering, Hunan University, Changsha, Hunan, 410082, China; Key Laboratory of Environmental Biology and Pollution Control, Hunan University, Ministry of Education, Changsha, Hunan, 410082, China
| | - Chenyu Zhang
- College of Environmental Science and Engineering, Hunan University, Changsha, Hunan, 410082, China; Key Laboratory of Environmental Biology and Pollution Control, Hunan University, Ministry of Education, Changsha, Hunan, 410082, China
| | - Suzhou Li
- College of Environmental Science and Engineering, Hunan University, Changsha, Hunan, 410082, China; Key Laboratory of Environmental Biology and Pollution Control, Hunan University, Ministry of Education, Changsha, Hunan, 410082, China
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Huang Y, Zhang W, Pang S, Chen J, Bhatt P, Mishra S, Chen S. Insights into the microbial degradation and catalytic mechanisms of chlorpyrifos. ENVIRONMENTAL RESEARCH 2021; 194:110660. [PMID: 33387540 DOI: 10.1016/j.envres.2020.110660] [Citation(s) in RCA: 68] [Impact Index Per Article: 22.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/04/2020] [Revised: 11/20/2020] [Accepted: 12/20/2020] [Indexed: 06/12/2023]
Abstract
Chlorpyrifos is extensively used worldwide as an insecticide to control various insect pests. Long-term and irregular applications of chlorpyrifos have resulted in large-scale soil, groundwater, sediment, and air pollution. Numerous studies have shown that chlorpyrifos and its major intermediate metabolite 3,5,6-trichloropyridinol (TCP) accumulate in non-target organisms through biomagnification and have a strong toxic effect on non-target organisms, including human beings. Bioremediation based on microbial metabolism is considered an eco-friendly and efficient strategy to remove chlorpyrifos residues. To date, a variety of bacterial and fungal species have been isolated and characterized for the biodegradation of chlorpyrifos and TCP. The metabolites and degradation pathways of chlorpyrifos have been investigated. In addition, the chlorpyrifos-degrading enzymes and functional genes in microbes have been reported. Hydrolases can catalyze the first step in ester-bond hydrolysis, and this initial regulatory metabolic reaction plays a key role in the degradation of chlorpyrifos. Previous studies have shown that the active site of hydrolase contains serine residues, which can initiate a catalytic reaction by nucleophilic attack on the P-atom of chlorpyrifos. However, few reviews have focused on the microbial degradation and catalytic mechanisms of chlorpyrifos. Therefore, this review discusses the deep understanding of chlorpyrifos degradation mechanisms with microbial strains, metabolic pathways, catalytic mechanisms, and their genetic basis in bioremediation.
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Affiliation(s)
- Yaohua Huang
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, Guangdong Province Key Laboratory of Microbial Signals and Disease Control, Integrative Microbiology Research Centre, South China Agricultural University, Guangzhou, 510642, China; Guangdong Laboratory for Lingnan Modern Agriculture, Guangzhou, 510642, China
| | - Wenping Zhang
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, Guangdong Province Key Laboratory of Microbial Signals and Disease Control, Integrative Microbiology Research Centre, South China Agricultural University, Guangzhou, 510642, China; Guangdong Laboratory for Lingnan Modern Agriculture, Guangzhou, 510642, China
| | - Shimei Pang
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, Guangdong Province Key Laboratory of Microbial Signals and Disease Control, Integrative Microbiology Research Centre, South China Agricultural University, Guangzhou, 510642, China; Guangdong Laboratory for Lingnan Modern Agriculture, Guangzhou, 510642, China
| | - Junmin Chen
- College of Plant Protection, Nanjing Agricultural University, Nanjing, 210095, China
| | - Pankaj Bhatt
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, Guangdong Province Key Laboratory of Microbial Signals and Disease Control, Integrative Microbiology Research Centre, South China Agricultural University, Guangzhou, 510642, China; Guangdong Laboratory for Lingnan Modern Agriculture, Guangzhou, 510642, China
| | - Sandhya Mishra
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, Guangdong Province Key Laboratory of Microbial Signals and Disease Control, Integrative Microbiology Research Centre, South China Agricultural University, Guangzhou, 510642, China; Guangdong Laboratory for Lingnan Modern Agriculture, Guangzhou, 510642, China
| | - Shaohua Chen
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, Guangdong Province Key Laboratory of Microbial Signals and Disease Control, Integrative Microbiology Research Centre, South China Agricultural University, Guangzhou, 510642, China; Guangdong Laboratory for Lingnan Modern Agriculture, Guangzhou, 510642, China.
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Arshad M, Naqvi N, Gul I, Yaqoob K, Bilal M, Kallerhoff J. Lead phytoextraction by Pelargonium hortorum: Comparative assessment of EDTA and DIPA for Pb mobility and toxicity. THE SCIENCE OF THE TOTAL ENVIRONMENT 2020; 748:141496. [PMID: 32818897 DOI: 10.1016/j.scitotenv.2020.141496] [Citation(s) in RCA: 32] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/01/2020] [Revised: 07/26/2020] [Accepted: 08/03/2020] [Indexed: 06/11/2023]
Abstract
Soil amendments like ethylene-diamine-tetraacetic-acid (EDTA) have extensively been used for enhancing lead (Pb) phytoextraction. But due to its toxic effects, environment friendly substitute is required. Therefore, the present study was conducted to investigate the effect of EDTA and Di-iso-propanol-amine (DIPA) to enhance Pb phytoavailability and uptake by Pelargonium hortorum along with comparative toxicities of both organic amendments. For this purpose, soil was spiked with Pb concentrations (0, 500, 750, 1000 and 1500 mg kg1) and amended with EDTA and DIPA at dosage levels (0, 1.5, 3, 5, 7.5, 10 mmol kg-1) for plantation of Pelargonium hortorum. Soil samples were extracted with MgCl2, plant samples were acid digested and analyzed for metal content. Biomass and root/shoot length of Pelargonium hortorum was decreased with increase in concentration of Pb and chelating agents. Phytoavailability of Pb at 1500 mg kg-1 with EDTA 10 mmol kg-1 was 0.3-folds in comparison to DIPA at the same dosage. Pelargonium hortorum plants amended with EDTA and DIPA at 10 mmol kg-1 with Pb 1000 mg kg-1 were found to uptake Pb 5.3-fold and 2.5-folds, respectively in comparison to Pb 1000 mg kg-1 alone. Pb uptake decreased at 1500 mg kg-1 with both chelating agents. The EDTA alone and in combination with 1500 mg Pb kg-1 showed maximum genotoxicity by reducing the mitotic index and increasing the micronuclei formation. EDTA+Pb showed maximum toxicity followed by Pb and DIPA. Overall, 10 mmol kg-1 of EDTA and DIPA performed better among all dosages in enhancing phytoavailability and uptake of Pb. DIPA showed less toxicity than that caused by EDTA, with comparable ability to promote Pb phytoextraction.
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Affiliation(s)
- Muhammad Arshad
- Institute of Environmental Sciences and Engineering, School of Civil and Environmental Engineering, National University of Sciences and Technology (NUST), Islamabad, Pakistan.
| | - Neelam Naqvi
- Institute of Environmental Sciences and Engineering, School of Civil and Environmental Engineering, National University of Sciences and Technology (NUST), Islamabad, Pakistan
| | - Iram Gul
- Institute of Environmental Sciences and Engineering, School of Civil and Environmental Engineering, National University of Sciences and Technology (NUST), Islamabad, Pakistan
| | - Khurram Yaqoob
- School of Chemical and Materials Engineering, National University of Sciences and Technology (NUST), Islamabad, Pakistan
| | - Muhammad Bilal
- Department of Environmental Sciences, COMSATS University Islamabad, Abbottabad Campus, Abbottabad, Pakistan
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Santillan JY, Rojas NL, Ghiringhelli PD, Nóbile ML, Lewkowicz ES, Iribarren AM. Organophosphorus compounds biodegradation by novel bacterial isolates and their potential application in bioremediation of contaminated water. BIORESOURCE TECHNOLOGY 2020; 317:124003. [PMID: 32810733 DOI: 10.1016/j.biortech.2020.124003] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/02/2020] [Revised: 08/07/2020] [Accepted: 08/08/2020] [Indexed: 06/11/2023]
Abstract
Organophosphorus compounds (OPs), the major pesticides used worldwide, comprise an environmental hazard due to their harmful toxicity. Aimed to develop a bioreactor to remediate OPs contaminated wastewater, bacteria isolated from contaminated soils were identified and their ability to degrade OPs assessed, resulting in two main isolates, Sphingomonas sp. and Brevundimonas sp. Their OP degrading activities were characterized in terms of temperature, pH and substrates acceptance, resulting in high degradation rates at 60 °C, pH 10 and towards bulky OPs such as coroxon, coumaphos, and chlorpyrifos. Sphingomonas sp. cells were immobilized and 75.4% degradation of 0.15 mM chlorpyrifos was achieved after 21 days by immobilized cells in batch system, while this OP was completely degraded within 17 h when the biocatalyst is settled in a packed bed bioreactor, with a reusability of 8 cycles. These results suggest the potential application of this system in the bioremediation of contaminated wastewater.
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Affiliation(s)
- Julia Yamila Santillan
- Universidad Nacional de Quilmes, CONICET, Departamento de Ciencia y Tecnología, Laboratorio de Biocatálisis y Biotransformaciones, Roque Sáenz Peña 352, Quilmes 1876, Argentina.
| | - Natalia Lorena Rojas
- Universidad Nacional de Quilmes, CONICET, Departamento de Ciencia y Tecnología, Laboratorio de Ingeniería Genética y Biología Celular y Molecular- Área Virosis de Insectos, Instituto de Microbiología Básica y Aplicada, Roque Sáenz Peña 352, Quilmes 1876, Argentina
| | - Pablo Daniel Ghiringhelli
- Universidad Nacional de Quilmes, CONICET, Departamento de Ciencia y Tecnología, Laboratorio de Ingeniería Genética y Biología Celular y Molecular- Área Virosis de Insectos, Instituto de Microbiología Básica y Aplicada, Roque Sáenz Peña 352, Quilmes 1876, Argentina
| | - Matías Leonardo Nóbile
- Universidad Nacional de Quilmes, CONICET, Departamento de Ciencia y Tecnología, Laboratorio de Biocatálisis y Biotransformaciones, Roque Sáenz Peña 352, Quilmes 1876, Argentina
| | - Elizabeth Sandra Lewkowicz
- Universidad Nacional de Quilmes, CONICET, Departamento de Ciencia y Tecnología, Laboratorio de Biocatálisis y Biotransformaciones, Roque Sáenz Peña 352, Quilmes 1876, Argentina
| | - Adolfo Marcelo Iribarren
- Universidad Nacional de Quilmes, CONICET, Departamento de Ciencia y Tecnología, Laboratorio de Biocatálisis y Biotransformaciones, Roque Sáenz Peña 352, Quilmes 1876, Argentina
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Zhang C, Li J, An H, Wu X, Wu Y, Long Y, Li R, Xing D. Enhanced elimination of dimethachlon from soils using a novel strain Brevundimonas naejangsanensis J3. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2020; 255:109848. [PMID: 31756580 DOI: 10.1016/j.jenvman.2019.109848] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/25/2019] [Revised: 10/08/2019] [Accepted: 11/07/2019] [Indexed: 06/10/2023]
Abstract
Dimethachlon is a hazardous xenobiotic which poses a potential risk on the ecosystem and human health after foliar spray for mitigating fungal diseases of crops. A novel dimethachlon-degrading strain was isolated and identified as Brevundimonas naejangsanensis J3. Free cells and enzymes of this strain could rapidly eliminate 75 mg/L dimethachlon in liquid medium, especially the latter (>90% of degradation efficiency). Strain J3 completely metabolized dimethachlon by an ideally transformed pathway. Immobilization cells and enzymes exhibited better stability and adaptability for the repeated use, as compared with free cells and enzymes. In laboratory, 68.03 and 65.13%, or 82.67 and 95.41% of dimethachlon were eliminated from non-sterile soils by free or immobilized cells and enzymes within 7 d, respectively. Under the field condition, 95.78 and 98.01% of 20.250 kg a.i./ha dimethachlon wettable powder from soils were degraded by immobilized cells and enzymes in 9 d respectively, which were significant higher than the degradation efficiencies of free cells and enzymes (78.81 and 67.25%). This study highlights immobilized cells and enzymes from strain J3 can be applicable for bioremediating dimethachlon-contaminated soils.
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Affiliation(s)
- Cheng Zhang
- College of Agricultural Equipment and Engineering, Jiangsu University, Zhenjiang, Jiangsu, 212013, China; Institute of Crop Protection, Research Center for Engineering Technology of Kiwifruit, College of Agriculture, Guizhou University, Guiyang, Guizhou, 550025, China; Institute of Geochemistry, Chinese Academy of Sciences, Guiyang, Guizhou, 550081, China
| | - Jiaohong Li
- Institute of Crop Protection, Research Center for Engineering Technology of Kiwifruit, College of Agriculture, Guizhou University, Guiyang, Guizhou, 550025, China
| | - Huaming An
- Institute of Crop Protection, Research Center for Engineering Technology of Kiwifruit, College of Agriculture, Guizhou University, Guiyang, Guizhou, 550025, China
| | - Xiaomao Wu
- Institute of Crop Protection, Research Center for Engineering Technology of Kiwifruit, College of Agriculture, Guizhou University, Guiyang, Guizhou, 550025, China.
| | - Yanyou Wu
- Institute of Geochemistry, Chinese Academy of Sciences, Guiyang, Guizhou, 550081, China.
| | - Youhua Long
- Institute of Crop Protection, Research Center for Engineering Technology of Kiwifruit, College of Agriculture, Guizhou University, Guiyang, Guizhou, 550025, China
| | - Rongyu Li
- Institute of Crop Protection, Research Center for Engineering Technology of Kiwifruit, College of Agriculture, Guizhou University, Guiyang, Guizhou, 550025, China
| | - Deke Xing
- College of Agricultural Equipment and Engineering, Jiangsu University, Zhenjiang, Jiangsu, 212013, China
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Taweetanawanit P, Ratpukdi T, Siripattanakul-Ratpukdi S. Performance and kinetics of triclocarban removal by entrapped Pseudomonas fluorescens strain MC46. BIORESOURCE TECHNOLOGY 2019; 274:113-119. [PMID: 30502601 DOI: 10.1016/j.biortech.2018.11.085] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/27/2018] [Revised: 11/21/2018] [Accepted: 11/23/2018] [Indexed: 05/22/2023]
Abstract
This study investigated removal of triclocarban (TCC) from contaminated wastewater by Pseudomonas fluorescens strain MC46 entrapped in barium alginate. Appropriate entrapped cell preparation conditions (cell-to-entrapment material ratio and cell loading) for removing TCC were examined. The highest TCC removal by the entrapped and free cell systems at the initial TCC concentration of 10 mg/L was 72 and 45%, respectively. TCC was degraded to less toxic compounds. Self-substrate inhibition was found at TCC concentration of 30 mg/L. The kinetics of TCC removal by entrapped and free cells fitted well with Edwards model. Scanning and transmission electron microscopic observations revealed that entrapment matrices reduced TCC-microbe contact, which lessened TCC inhibition. A live/dead cell assay also confirmed reduced microbial cell damage in the entrapped cell system compared to the free cell system. This study reveals the potential of entrapment technology to improve antibiotic removal from the environment.
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Affiliation(s)
- Pongsatorn Taweetanawanit
- Department of Environmental Engineering, Faculty of Engineering and Research Center for Environmental and Hazardous Substance Management, Khon Kaen University, Khon Kaen 40002, Thailand.
| | - Thunyalux Ratpukdi
- Department of Environmental Engineering, Faculty of Engineering and Research Center for Environmental and Hazardous Substance Management, Khon Kaen University, Khon Kaen 40002, Thailand; Center of Excellence on Hazardous Substance Management (HSM), Bangkok 10330, Thailand.
| | - Sumana Siripattanakul-Ratpukdi
- Department of Environmental Engineering, Faculty of Engineering and Research Center for Environmental and Hazardous Substance Management, Khon Kaen University, Khon Kaen 40002, Thailand; Center of Excellence on Hazardous Substance Management (HSM), Bangkok 10330, Thailand.
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Zhao C, Liu J, Yuan G, Liu J, Zhang H, Yang J, Yang Y, Liu N, Sun Q, Liao J. A novel activated sludge-graphene oxide composites for the removal of uranium(VI) from aqueous solutions. J Mol Liq 2018. [DOI: 10.1016/j.molliq.2018.09.069] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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