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Kracmarova-Farren M, Papik J, Uhlik O, Freeman J, Foster A, Leewis MC, Creamer C. Compost, plants and endophytes versus metal contamination: choice of a restoration strategy steers the microbiome in polymetallic mine waste. ENVIRONMENTAL MICROBIOME 2023; 18:74. [PMID: 37805609 PMCID: PMC10559404 DOI: 10.1186/s40793-023-00528-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/02/2023] [Accepted: 09/14/2023] [Indexed: 10/09/2023]
Abstract
Finding solutions for the remediation and restoration of abandoned mining areas is of great environmental importance as they pose a risk to ecosystem health. In this study, our aim was to determine how remediation strategies with (i) compost amendment, (ii) planting a metal-tolerant grass Bouteloua curtipendula, and (iii) its inoculation with beneficial endophytes influenced the microbiome of metal-contaminated tailings originating from the abandoned Blue Nose Mine, SE Arizona, near Patagonia (USA). We conducted an indoor microcosm experiment followed by a metataxonomic analysis of the mine tailings, compost, and root samples. Our results showed that each remediation strategy promoted a distinct pattern of microbial community structure in the mine tailings, which correlated with changes in their chemical properties. The combination of compost amendment and endophyte inoculation led to the highest prokaryotic diversity and total nitrogen and organic carbon, but also induced shifts in microbial community structure that significantly correlated with an enhanced potential for mobilization of Cu and Sb. Our findings show that soil health metrics (total nitrogen, organic carbon and pH) improved, and microbial community changed, due to organic matter input and endophyte inoculation, which enhanced metal leaching from the mine waste and potentially increased environmental risks posed by Cu and Sb. We further emphasize that because the initial choice of remediation strategy can significantly impact trace element mobility via modulation of both soil chemistry and microbial communities, site specific, bench-scale preliminary tests, as reported here, can help determine the potential risk of a chosen strategy.
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Affiliation(s)
- Martina Kracmarova-Farren
- Department of Biochemistry and Microbiology, Faculty of Food and Biochemical Technology, University of Chemistry and Technology, Prague, Technicka 3, 166 28, Prague 6, Czech Republic
| | - Jakub Papik
- Department of Biochemistry and Microbiology, Faculty of Food and Biochemical Technology, University of Chemistry and Technology, Prague, Technicka 3, 166 28, Prague 6, Czech Republic.
| | - Ondrej Uhlik
- Department of Biochemistry and Microbiology, Faculty of Food and Biochemical Technology, University of Chemistry and Technology, Prague, Technicka 3, 166 28, Prague 6, Czech Republic
| | - John Freeman
- Intrinsyx Environmental, Sunnyvale, CA, 94085, USA
| | | | - Mary-Cathrine Leewis
- U.S. Geological Survey, Menlo Park, CA, USA
- Agriculture and Agri-Food Canada, Quebec Research and Development Centre, Quebec, QC, Canada
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Lu J, Geng R, Zhang H, Yu Z, Chen T, Zhang B. Concurrent reductive decontamination of chromium (VI) and uranium (VI) in groundwater by Fe(0)-based autotrophic bioprocess. JOURNAL OF HAZARDOUS MATERIALS 2023; 452:131222. [PMID: 36989793 DOI: 10.1016/j.jhazmat.2023.131222] [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: 01/14/2023] [Revised: 02/23/2023] [Accepted: 03/14/2023] [Indexed: 05/03/2023]
Abstract
The co-presence of chromium (VI) [Cr(VI)] and uranium (VI) [U(VI)] is widely found in groundwater, imposing severe risks on human health. Although zerovalent iron [Fe(0)] supports superb performance for bioreduction of Cr(VI) and U(VI) individually, the biogeochemical process involving their concurrent removal with Fe(0) as electron donor remains unexplored. In the 6-d batch study, 86.1% ± 0.7% of Cr(VI) was preferentially eliminated, while 78.4% ± 0.5% of U(VI) removal was achieved simultaneously. Efficient removal of Cr(VI) (100%) and U(VI) (51.2% ∼ 100%) was also obtained in a continuous 160-d column experiment. As a result, Cr(VI) and U(VI) were reduced to less mobile Cr(III) and insoluble U(IV), respectively. 16 S rRNA sequencing was performed to investigate the dynamics of microbial community. Delftia, Acinetobacter, Pseudomonas and Desulfomicrobium were the major contributors mediating the bioreduction process. The initial Cr(VI) and hydraulic retention time (HRT) incurred pronounced effects on community diversity, which in turn altered the reactor's performance. The enrichment of Cr(VI) resistance (chrA), U(VI) reduction (dsrA) and Fe(II) oxidation (mtrA) genes were observed by reverse transcription qPCR. Cytochrome c, glutathione and NADH as well as VFAs and gas metabolites also involved in the bioprocess. This study demonstrated a promising approach for removing the combined contaminants of Cr(VI) and U(VI) in groundwater.
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Affiliation(s)
- Jianping Lu
- MOE Key Laboratory of Groundwater Circulation and Environmental Evolution, School of Water Resources and Environment, China University of Geosciences Beijing, Beijing 100083, PR China
| | - Rongyue Geng
- MOE Key Laboratory of Groundwater Circulation and Environmental Evolution, School of Water Resources and Environment, China University of Geosciences Beijing, Beijing 100083, PR China
| | - Han Zhang
- MOE Key Laboratory of Groundwater Circulation and Environmental Evolution, School of Water Resources and Environment, China University of Geosciences Beijing, Beijing 100083, PR China.
| | - Zhen Yu
- Institute of Eco-environmental and Soil Sciences, Guangdong Academy of Sciences, Guangzhou 510650, PR China
| | - Tao Chen
- School of Environment, South China Normal University, University Town, Guangzhou 510006, PR China.
| | - Baogang Zhang
- MOE Key Laboratory of Groundwater Circulation and Environmental Evolution, School of Water Resources and Environment, China University of Geosciences Beijing, Beijing 100083, PR China
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Wang G, Liu Y, Wang J, Xiang J, Zeng T, Li S, Song J, Zhang Z, Liu J. The remediation of uranium-contaminated groundwater via bioreduction coupled to biomineralization with different pH and electron donors. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:23096-23109. [PMID: 36316554 DOI: 10.1007/s11356-022-23902-z] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/24/2022] [Accepted: 10/26/2022] [Indexed: 06/16/2023]
Abstract
Stimulating indigenous microbes to reduce aqueous U(VI) to insoluble U(IV) by adding an electron donor has been applied as an applicable strategy to remediate uranium-contaminated groundwater in situ. However, biogenic U(IV) minerals are susceptible to oxidative remobilization after exposure to oxygen. To enhance the stability of the end product, glycerol phosphate (GP) was selected to treat artificial uranium-containing groundwater at different pH values (i.e., 7.0 and 5.0) with glycerol (GY) as the control group. The results revealed that removal ratios of uranium with GP were all higher than those with GY, and reduced crystalline U(IV)-phosphate and U(VI)-phosphate minerals (recalcitrant to oxidative remobilization) were generated in the GP groups. Although bioreduction efficiency was influenced at pH 5.0, the stability of the end product with GP was elevated significantly compared with that with GY. Mechanism analysis demonstrated that GP could activate bioreduction and biomineralization of the microbial community, and two stages were included in the GP groups. In the early stage, bioreduction and biomineralization were both involved in the immobilization process. Subsequently, part of the U(VI) precipitate was gradually reduced to U(IV) precipitate by microorganisms. This work implied that the formation of U-phosphate minerals via bioreduction coupled with biomineralization potentially offers a more effective strategy for remediating uranium-contaminated groundwater with long-term stability.
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Affiliation(s)
- Guohua Wang
- Hunan Provincial Key Laboratory of Pollution Control and Resources Technology, University of South China, Hengyang, 421001, China
- Key Discipline Laboratory for National Defense for Biotechnology in Uranium Mining and Hydrometallurgy, University of South China, Hengyang, 421001, China
| | - Ying Liu
- Hunan Provincial Key Laboratory of Pollution Control and Resources Technology, University of South China, Hengyang, 421001, China
| | - Jiali Wang
- Hunan Provincial Key Laboratory of Pollution Control and Resources Technology, University of South China, Hengyang, 421001, China
| | - Jinjing Xiang
- Hunan Provincial Key Laboratory of Pollution Control and Resources Technology, University of South China, Hengyang, 421001, China
| | - Taotao Zeng
- Hunan Provincial Key Laboratory of Pollution Control and Resources Technology, University of South China, Hengyang, 421001, China
| | - Shiyou Li
- Hunan Provincial Key Laboratory of Pollution Control and Resources Technology, University of South China, Hengyang, 421001, China
| | - Jian Song
- Hunan Provincial Key Laboratory of Pollution Control and Resources Technology, University of South China, Hengyang, 421001, China
| | - Zhiyue Zhang
- Hunan Provincial Key Laboratory of Pollution Control and Resources Technology, University of South China, Hengyang, 421001, China
| | - Jinxiang Liu
- Hunan Provincial Key Laboratory of Pollution Control and Resources Technology, University of South China, Hengyang, 421001, China.
- Key Discipline Laboratory for National Defense for Biotechnology in Uranium Mining and Hydrometallurgy, University of South China, Hengyang, 421001, China.
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Banala UK, Indradyumna Das NP, Toleti SR. Uranium sequestration abilities of Bacillus bacterium isolated from an alkaline mining region. JOURNAL OF HAZARDOUS MATERIALS 2021; 411:125053. [PMID: 33453672 DOI: 10.1016/j.jhazmat.2021.125053] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/11/2020] [Revised: 12/29/2020] [Accepted: 01/04/2021] [Indexed: 06/12/2023]
Abstract
The present study elaborates uranium sequestration by bacteria from alkaline wastewaters. In the investigation, a few bacterial strains were isolated from alkaline uranium mine water and were tested for uranium sequestration properties 16S rRNA analysis assigned the 10 bacterial isolates to 4 genera of Actinobacteria and Firmicutes. Among all the isolates tested, the strain Bacillus aryabhattai (TP03) has shown superior sequestration capacity at 5 and 10 mg/L U in 1 mM carbonate-bicarbonate buffer at pH 9.2. At low uranium concentrations (5 mg/L as uranyl carbonate), the strain could sequester ~70% of the uranium in 6 h with a loading capacity of 4.3 mg U/g dry bacterial biomass. Increase in carbonate-bicarbonate buffer concentrations and pH reduced the sequestration capacity. Scanning electron microscopy and energy dispersive X-ray fluorescence spectroscopy studies indicated the presence of uranium with the bacterial biomass. Fourier transform infra-red spectroscopy results confirmed the uranium sequestration by cell membrane phosphate, amide, and carboxyl functional groups. Transmission electron microscopy study showed uranium presence within the cell cytoplasm, thus supporting the hypothesis on active metabolism-dependent bioaccumulation of uranium. The kinetics study of uranium sequestration was well fitted to the pseudo-second-order model. Overall, this study infers that the isolated alkaliphilic bacteria from the mine waters have significant sequestration property for treating uranium-containing alkaline wastewaters.
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Affiliation(s)
- Uday Kumar Banala
- Radiological and Environmental Safety Division, Indira Gandhi Centre for Atomic Research, Kalpakkam 603102, India; Homi Bhabha National Institute, Anushakti Nagar, Mumbai 400094, India
| | | | - Subba Rao Toleti
- Homi Bhabha National Institute, Anushakti Nagar, Mumbai 400094, India; Water and Steam Chemistry Division, Chemistry Group, Bhabha Atomic Research Centre, Kalpakkam 603102, India.
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Bodhaguru M, Santhiyagu P, Lakshmanan M, Ramasamy R, Kumari AN, Ethiraj K, Arunachalam P, Grasian I. In vitro biomedicinal properties of Pyrrolidine-2,4-Dione derived from a novel actinobacterium Streptomyces rochei, a green approach. BIOCATALYSIS AND AGRICULTURAL BIOTECHNOLOGY 2019. [DOI: 10.1016/j.bcab.2019.101244] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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He G, Wang X, Liu X, Xiao X, Huang S, Wu J. Nutrients Availability Shapes Fungal Community Composition and Diversity in the Rare Earth Mine Tailings of Southern Jiangxi, China. RUSS J ECOL+ 2019. [DOI: 10.1134/s1067413618660037] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Bondici V, Khan N, Swerhone G, Dynes J, Lawrence J, Yergeau E, Wolfaardt G, Warner J, Korber D. Biogeochemical activity of microbial biofilms in the water column overlying uranium mine tailings. J Appl Microbiol 2014; 117:1079-94. [DOI: 10.1111/jam.12593] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2014] [Revised: 06/18/2014] [Accepted: 06/29/2014] [Indexed: 01/14/2023]
Affiliation(s)
- V.F. Bondici
- Food and Bioproduct Sciences; University of Saskatchewan; Saskatoon SK Canada
| | - N.H. Khan
- Food and Bioproduct Sciences; University of Saskatchewan; Saskatoon SK Canada
| | | | - J.J. Dynes
- Canadian Light Source; Saskatoon SK Canada
| | | | - E. Yergeau
- National Research Council; Montreal QC Canada
| | - G.M. Wolfaardt
- Department of Chemistry and Biology; Ryerson University; Toronto ON Canada
| | - J. Warner
- Cameco Corporation; Saskatoon SK Canada
| | - D.R. Korber
- Food and Bioproduct Sciences; University of Saskatchewan; Saskatoon SK Canada
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