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Fan XY, Wang YB, Xing-Li, Cao SB, Zhang XH, Geng WN. Redox mediator chlorophyll accelerates low-temperature biological denitrification with responses of extracellular polymers and changes in microbial community composition. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 926:171978. [PMID: 38537813 DOI: 10.1016/j.scitotenv.2024.171978] [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: 01/16/2024] [Revised: 03/15/2024] [Accepted: 03/23/2024] [Indexed: 04/02/2024]
Abstract
Low temperatures limit the denitrification wastewater in activated sludge systems, but this can be mitigated by addition of redox mediators (RMs). Here, the effects of chlorophyll (Chl), 1,2-naphthoquinone-4-sulfonic acid (NQS), humic acid (HA), and riboflavin (RF), each tested at three concentrations, were compared for denitrification performance at low temperature, by monitoring the produced extracellular polymeric substances (EPS), and characterizing microbial communities and their metabolic potential. Chl increased the denitrification rate most, namely 4.12-fold compared to the control, followed by NQS (2.62-fold increase) and HA (1.35-fold increase), but RF had an inhibitory effect. Chl promoted the secretion of tryptophan-like and tyrosine-like proteins in the EPS and aided the conversion of protein from tightly bound EPS into loosely bound EPS, which improved the material transfer efficiency. NQS, HA, and RF also altered the EPS components. The four RMs affected the microbial community structure, whereby both conditionally abundant taxa (CAT) and conditionally rare or abundant taxa (CRAT) were key taxa. Among them, CRAT members interacted most with the other taxa. Chl promoted Flavobacterium enrichment in low-temperature activated sludge systems. In addition, Chl promoted the abundance of nitrate reduction genes narGHI and napAB and of nitrite reduction genes nirKS, norBC, and nosZ. Moreover, Chl increased abundance of genes involved in acetate metabolism and in the TCA cycle, thereby improving carbon source utilization. This study increases our understanding of the enhancement of low-temperature activated sludge by RMs, and demonstrates positive effects, in particular by Chl.
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Affiliation(s)
- Xiao-Yan Fan
- Faculty of Architecture, Civil and Transportation Engineering, Beijing University of Technology, Beijing 100124, PR China.
| | - Ya-Bao Wang
- Faculty of Architecture, Civil and Transportation Engineering, Beijing University of Technology, Beijing 100124, PR China
| | - Xing-Li
- Faculty of Architecture, Civil and Transportation Engineering, Beijing University of Technology, Beijing 100124, PR China
| | - Shen-Bin Cao
- Faculty of Architecture, Civil and Transportation Engineering, Beijing University of Technology, Beijing 100124, PR China
| | - Xiao-Han Zhang
- Faculty of Architecture, Civil and Transportation Engineering, Beijing University of Technology, Beijing 100124, PR China
| | - Wen-Nian Geng
- Faculty of Architecture, Civil and Transportation Engineering, Beijing University of Technology, Beijing 100124, PR China
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Dissimilatory reduction of Fe(III) by a novel Serratia marcescens strain with special insight into the influence of prodigiosin. Int Microbiol 2019; 23:201-214. [DOI: 10.1007/s10123-019-00088-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2019] [Revised: 06/12/2019] [Accepted: 06/14/2019] [Indexed: 12/21/2022]
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Wu Y, Luo J, Zhang Q, Aleem M, Fang F, Xue Z, Cao J. Potentials and challenges of phosphorus recovery as vivianite from wastewater: A review. CHEMOSPHERE 2019; 226:246-258. [PMID: 30933734 DOI: 10.1016/j.chemosphere.2019.03.138] [Citation(s) in RCA: 90] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/29/2018] [Revised: 03/20/2019] [Accepted: 03/21/2019] [Indexed: 06/09/2023]
Abstract
Due to the shortage of phosphorus resources and the limitations of existing phosphorus recovery methods, phosphorus recovery in the form of vivianite has attracted considerable attention with its natural ubiquity, easy accessibility and foreseeable economic value. This review systematically summarizes the chemistry of vivianite, including the characteristics, formation process and influencing factors of the material. Additionally, the potential of phosphorus recovery as vivianite from wastewater has also been comprehensively examined from the prospects of economic value and engineering feasibility. In general, this method is theoretically and practically feasible, and brings some extra benefits in WWTPs. However, the insufficient understanding on vivianite recovery in wastewater/sludge decelerate the development and exploration of such advanced approach. Further researches and cross-field supports would facilitate the improvement of this technique in the future.
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Affiliation(s)
- Yang Wu
- Key Laboratory of Integrated Regulation and Resource Development on Shallow Lakes, College of Environment, Hohai University, Nanjing 210098, China; College of Environment, Hohai University, Nanjing 210098, China
| | - Jingyang Luo
- Key Laboratory of Integrated Regulation and Resource Development on Shallow Lakes, College of Environment, Hohai University, Nanjing 210098, China; College of Environment, Hohai University, Nanjing 210098, China.
| | - Qin Zhang
- Key Laboratory of Integrated Regulation and Resource Development on Shallow Lakes, College of Environment, Hohai University, Nanjing 210098, China; College of Environment, Hohai University, Nanjing 210098, China; Wanjiang University of Technology, Ma'anshan 243031, China
| | - Muhammad Aleem
- Key Laboratory of Integrated Regulation and Resource Development on Shallow Lakes, College of Environment, Hohai University, Nanjing 210098, China; College of Environment, Hohai University, Nanjing 210098, China
| | - Fang Fang
- Key Laboratory of Integrated Regulation and Resource Development on Shallow Lakes, College of Environment, Hohai University, Nanjing 210098, China; College of Environment, Hohai University, Nanjing 210098, China
| | - Zhaoxia Xue
- Key Laboratory of Integrated Regulation and Resource Development on Shallow Lakes, College of Environment, Hohai University, Nanjing 210098, China; College of Environment, Hohai University, Nanjing 210098, China
| | - Jiashun Cao
- Key Laboratory of Integrated Regulation and Resource Development on Shallow Lakes, College of Environment, Hohai University, Nanjing 210098, China; College of Environment, Hohai University, Nanjing 210098, China.
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Matyugina E, Belkova N, Borzenko S, Lukyanov P, Kabilov M, Baturina O, Kley AMV, Nalian A, Ptitsyn A. Structure and diversity dynamics of microbial communities at day and night: investigation of meromictic Lake Doroninskoe, Transbaikalia, Russia. JOURNAL OF OCEANOLOGY AND LIMNOLOGY 2018; 36:1978-1992. [DOI: 10.1007/s00343-018-7332-1] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/27/2018] [Accepted: 03/27/2018] [Indexed: 07/26/2024]
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MeGraw VE, Brown AR, Boothman C, Goodacre R, Morris K, Sigee D, Anderson L, Lloyd JR. A Novel Adaptation Mechanism Underpinning Algal Colonization of a Nuclear Fuel Storage Pond. mBio 2018; 9:e02395-17. [PMID: 29946053 PMCID: PMC6020298 DOI: 10.1128/mbio.02395-17] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2017] [Accepted: 05/16/2018] [Indexed: 11/20/2022] Open
Abstract
Geochemical analyses alongside molecular techniques were used to characterize the microbial ecology and biogeochemistry of an outdoor spent nuclear fuel storage pond at Sellafield, United Kingdom, that is susceptible to seasonal algal blooms that cause plant downtime. 18S rRNA gene profiling of the filtered biomass samples showed the increasing dominance of a species closely related to the alga Haematococcus pluvialis, alongside 16S rRNA genes affiliated with a diversity of freshwater bacteria, including Proteobacteria and Cyanobacteria High retention of 137Cs and 90Sr on pond water filters coincided with high levels of microbial biomass in the pond, suggesting that microbial colonization may have an important control on radionuclide fate in the pond. To interpret the unexpected dominance of Haematococcus species during bloom events in this extreme environment, the physiological response of H. pluvialis to environmentally relevant ionizing radiation doses was assessed. Irradiated laboratory cultures produced significant quantities of the antioxidant astaxanthin, consistent with pigmentation observed in pond samples. Fourier transform infrared (FT-IR) spectroscopy suggested that radiation did not have a widespread impact on the metabolic fingerprint of H. pluvialis in laboratory experiments, despite the 80-Gy dose. This study suggests that the production of astaxanthin-rich encysted cells may be related to the preservation of the Haematococcus phenotype, potentially allowing it to survive oxidative stress arising from radiation doses associated with the spent nuclear fuel. The oligotrophic and radiologically extreme conditions in this environment do not prevent extensive colonization by microbial communities, which play a defining role in controlling the biogeochemical fate of major radioactive species present.IMPORTANCE Spent nuclear fuel is stored underwater in large ponds prior to processing and disposal. Such environments are intensively radioactive but can be colonized by microorganisms. Colonization of such inhospitable radioactive ponds is surprising, and the survival mechanisms that microbes use is of fundamental interest. It is also important to study these unusual ecosystems, as microbes growing in the pond waters may accumulate radionuclides present in the waters (for bioremediation applications), while high cell loads can hamper management of the ponds due to poor visibility. In this study, an outdoor pond at the U.K. Sellafield facility was colonized by a seasonal bloom of microorganisms, able to accumulate high levels of 137Cs and 90Sr and dominated by the alga Haematococcus This organism is not normally associated with deep water bodies, but it can adapt to radioactive environments via the production of the pigment astaxanthin, which protects the cells from radiation damage.
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Affiliation(s)
- Victoria E MeGraw
- Research Centre for Radwaste Disposal, School of Earth and Environmental Sciences, The University of Manchester, Manchester, United Kingdom
- Williamson Research Centre for Molecular Environmental Science, School of Earth and Environmental Sciences, The University of Manchester, Manchester, United Kingdom
| | - Ashley R Brown
- Research Centre for Radwaste Disposal, School of Earth and Environmental Sciences, The University of Manchester, Manchester, United Kingdom
- Williamson Research Centre for Molecular Environmental Science, School of Earth and Environmental Sciences, The University of Manchester, Manchester, United Kingdom
| | - Christopher Boothman
- Research Centre for Radwaste Disposal, School of Earth and Environmental Sciences, The University of Manchester, Manchester, United Kingdom
- Williamson Research Centre for Molecular Environmental Science, School of Earth and Environmental Sciences, The University of Manchester, Manchester, United Kingdom
| | - Royston Goodacre
- Manchester Institute of Biotechnology, The University of Manchester, Manchester, United Kingdom
| | - Katherine Morris
- Research Centre for Radwaste Disposal, School of Earth and Environmental Sciences, The University of Manchester, Manchester, United Kingdom
- Williamson Research Centre for Molecular Environmental Science, School of Earth and Environmental Sciences, The University of Manchester, Manchester, United Kingdom
| | - David Sigee
- Research Centre for Radwaste Disposal, School of Earth and Environmental Sciences, The University of Manchester, Manchester, United Kingdom
- Williamson Research Centre for Molecular Environmental Science, School of Earth and Environmental Sciences, The University of Manchester, Manchester, United Kingdom
| | - Lizzie Anderson
- Thorp Management Centre, Sellafield, Seascale, United Kingdom
| | - Jonathan R Lloyd
- Research Centre for Radwaste Disposal, School of Earth and Environmental Sciences, The University of Manchester, Manchester, United Kingdom
- Williamson Research Centre for Molecular Environmental Science, School of Earth and Environmental Sciences, The University of Manchester, Manchester, United Kingdom
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Zheng S, Liu F, Li M, Xiao L, Wang O. Comparative transcriptomic insights into the mechanisms of electron transfer in Geobacter co-cultures with activated carbon and magnetite. SCIENCE CHINA-LIFE SCIENCES 2017; 61:787-798. [DOI: 10.1007/s11427-017-9177-1] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/25/2017] [Accepted: 09/15/2017] [Indexed: 11/28/2022]
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Zheng S, Wang B, Li Y, Liu F, Wang O. Electrochemically active iron (III)-reducing bacteria in coastal riverine sediments. J Basic Microbiol 2017; 57:1045-1054. [DOI: 10.1002/jobm.201700322] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2017] [Revised: 08/30/2017] [Accepted: 09/01/2017] [Indexed: 11/06/2022]
Affiliation(s)
- Shiling Zheng
- Key Laboratory of Coastal Biology and Biological Resources Utilization, Yantai Institute of Coastal Zone Research; Chinese Academy of Sciences; Yantai China
| | - Bingchen Wang
- Key Laboratory of Coastal Biology and Biological Resources Utilization, Yantai Institute of Coastal Zone Research; Chinese Academy of Sciences; Yantai China
- University of Chinese Academy of Sciences; Beijing China
| | - Ying Li
- Key Laboratory of Coastal Biology and Biological Resources Utilization, Yantai Institute of Coastal Zone Research; Chinese Academy of Sciences; Yantai China
- University of Chinese Academy of Sciences; Beijing China
| | - Fanghua Liu
- Key Laboratory of Coastal Biology and Biological Resources Utilization, Yantai Institute of Coastal Zone Research; Chinese Academy of Sciences; Yantai China
| | - Oumei Wang
- Binzhou Medical University; Yantai China
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Peiravi M, Mote SR, Mohanty MK, Liu J. Bioelectrochemical treatment of acid mine drainage (AMD) from an abandoned coal mine under aerobic condition. JOURNAL OF HAZARDOUS MATERIALS 2017; 333:329-338. [PMID: 28376361 DOI: 10.1016/j.jhazmat.2017.03.045] [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: 11/28/2016] [Revised: 02/28/2017] [Accepted: 03/20/2017] [Indexed: 05/28/2023]
Abstract
In this study, a bioelectrochemical system (BES) was used to treat acid mine drainage (AMD) from an abandoned coal mine in the cathode chamber under aerobic condition. Activated sludge from a local wastewater treatment plant was used in the anode chamber of the BES to supply electrons to the treatment. After 7days, the pH of the cathode solution enhanced from 2.5 to 7.3. More than 99% of Al, Fe and Pb were removed, and removal rates of 93%, 91%, 89% and 69% were achieved for Cd, Zn, Mn and Co respectively with biocathode. Energy-dispersive X-ray spectroscopy (EDS) study revealed the deposition of the various types of metals on the cathode surface, and some metals were detected in the precipitates of the cathode chamber. The bacteria for AMD treatment was identified to be Serratia spp. using 16s rRNA gene amplification and sequencing. Scanning electron microscopy showed attached growth of the bacteria on the cathode. The bioelectrochemical treatment of the AMD was also compared with the biological treatment in a continuously stirred batch reactor (CSBR).
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Affiliation(s)
- Meisam Peiravi
- Department of Civil and Environmental Engineering, Southern Illinois University, Carbondale, IL, 62901, USA
| | - Shekhar R Mote
- Department of Civil and Environmental Engineering, Southern Illinois University, Carbondale, IL, 62901, USA
| | - Manoj K Mohanty
- Department of Mining and Mineral Resources Engineering, Southern Illinois University, Carbondale, IL, 62901, USA
| | - Jia Liu
- Department of Civil and Environmental Engineering, Southern Illinois University, Carbondale, IL, 62901, USA.
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Newsome L, Morris K, Lloyd JR. Uranium Biominerals Precipitated by an Environmental Isolate of Serratia under Anaerobic Conditions. PLoS One 2015; 10:e0132392. [PMID: 26132209 PMCID: PMC4488441 DOI: 10.1371/journal.pone.0132392] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2015] [Accepted: 06/13/2015] [Indexed: 11/19/2022] Open
Abstract
Stimulating the microbially-mediated precipitation of uranium biominerals may be used to treat groundwater contamination at nuclear sites. The majority of studies to date have focussed on the reductive precipitation of uranium as U(IV) by U(VI)- and Fe(III)-reducing bacteria such as Geobacter and Shewanella species, although other mechanisms of uranium removal from solution can occur, including the precipitation of uranyl phosphates via bacterial phosphatase activity. Here we present the results of uranium biomineralisation experiments using an isolate of Serratia obtained from a sediment sample representative of the Sellafield nuclear site, UK. When supplied with glycerol phosphate, this Serratia strain was able to precipitate 1 mM of soluble U(VI) as uranyl phosphate minerals from the autunite group, under anaerobic and fermentative conditions. Under phosphate-limited anaerobic conditions and with glycerol as the electron donor, non-growing Serratia cells could precipitate 0.5 mM of uranium supplied as soluble U(VI), via reduction to nano-crystalline U(IV) uraninite. Some evidence for the reduction of solid phase uranyl(VI) phosphate was also observed. This study highlights the potential for Serratia and related species to play a role in the bioremediation of uranium contamination, via a range of different metabolic pathways, dependent on culturing or in situ conditions.
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Affiliation(s)
- Laura Newsome
- Research Centre for Radwaste Disposal and Williamson Research Centre, School of Earth, Atmospheric and Environmental Sciences, University of Manchester, Oxford Road, Manchester, United Kingdom
- * E-mail:
| | - Katherine Morris
- Research Centre for Radwaste Disposal and Williamson Research Centre, School of Earth, Atmospheric and Environmental Sciences, University of Manchester, Oxford Road, Manchester, United Kingdom
| | - Jonathan. R. Lloyd
- Research Centre for Radwaste Disposal and Williamson Research Centre, School of Earth, Atmospheric and Environmental Sciences, University of Manchester, Oxford Road, Manchester, United Kingdom
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