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Wan H, Wang G, Zhang T, Xu Z, Liu H. Bacterial adhesion and corrosion behavior of different pure metals induced by sulfate reducing bacteria. BIOFOULING 2024:1-15. [PMID: 38836545 DOI: 10.1080/08927014.2024.2357308] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/15/2023] [Accepted: 05/10/2024] [Indexed: 06/06/2024]
Abstract
The corrosion behaviors of four pure metals (Fe, Ni, Mo and Cr) in the presence of sulfate reducing bacteria (SRB) were investigated in enriched artificial seawater (EASW) after 14-day incubation. Metal Fe and metal Ni experienced weight losses of 1.96 mg cm-2 and 1.26 mg cm-2, respectively. In contrast, metal Mo and metal Cr exhibited minimal weight losses, with values of only 0.05 mg cm-2 and 0.03 mg cm-2, respectively. In comparison to Mo (2.2 × 106 cells cm-2) or Cr (1.4 × 106 cells cm-2) surface, the sessile cell counts on Fe (4.0 × 107 cells cm-2) or Ni (3.1 × 107 cells cm-2) surface was higher.
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Affiliation(s)
- Huihai Wan
- Key Laboratory of Material Chemistry for Energy Conversion and Storage, Ministry of Education, Hubei Key Laboratory of Material Chemistry and Service Failure, Hubei Engineering Research Center for Biomaterials and Medical Protective Materials, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan, PR China
| | - Guoqing Wang
- Key Laboratory of Material Chemistry for Energy Conversion and Storage, Ministry of Education, Hubei Key Laboratory of Material Chemistry and Service Failure, Hubei Engineering Research Center for Biomaterials and Medical Protective Materials, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan, PR China
| | - Tiansui Zhang
- Key Laboratory of Material Chemistry for Energy Conversion and Storage, Ministry of Education, Hubei Key Laboratory of Material Chemistry and Service Failure, Hubei Engineering Research Center for Biomaterials and Medical Protective Materials, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan, PR China
| | - Zixuan Xu
- Key Laboratory of Material Chemistry for Energy Conversion and Storage, Ministry of Education, Hubei Key Laboratory of Material Chemistry and Service Failure, Hubei Engineering Research Center for Biomaterials and Medical Protective Materials, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan, PR China
| | - Hongfang Liu
- Key Laboratory of Material Chemistry for Energy Conversion and Storage, Ministry of Education, Hubei Key Laboratory of Material Chemistry and Service Failure, Hubei Engineering Research Center for Biomaterials and Medical Protective Materials, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan, PR China
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2
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Nong G, Huang W, Meng L, Gao Y, Tian C, Zhang X, Lu L. Pretreatment of 3-hydroxyacetophenone in pharmaceutical wastewater using combined salting-out crystallization+ Fenton system and subsequent impact analysis of effluent water. ENVIRONMENTAL TECHNOLOGY 2023:1-17. [PMID: 38009063 DOI: 10.1080/09593330.2023.2287025] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/10/2023] [Accepted: 11/11/2023] [Indexed: 11/28/2023]
Abstract
Selecting a suitable pretreatment process for pharmaceutical wastewater that is difficult to treat biochemically so that it can enter the subsequent biochemical treatment. In this study, pharmaceutical wastewater consisting of 45 g/L sodium bisulfate, 9 g/L 3-hydroxyacetophenone (3-HAP), and 36.75 g/L sulfuric acids,which is a kind of typical pharmaceutical wastewater, was used for the pretreatment case study, and the process was screened by technology. A salting-out crystallization+Fenton system(SC-F) was developed for the treatment of this wastewater. The salting-out agent is formed by the pH adjustment process without additional additions and the salting-out crystallization effect is significant for the precipitation of 3-HAP from the wastewater. Subsequently, the optimal operating conditions for SC-F were derived from experiments as H2O2 of 0.4692 mol/L, n(H2O2):n(Fe2+)=30:1, pH=3. Under optimal conditions, the reaction time of 2 h achieved a COD removal rate of 90% and a BOD/COD value of 0.56, confirming the effectiveness of the technology in treating this wastewater. Additionally, it was discovered that the Fenton treatment was not significantly impacted by the inorganic components of the effluent. Analysis of effluent properties and possible effects on subsequent treatment by LC-MS and toxicity analysis. The results show that the biodegradability are enhanced by the pretreatment technology. However, the effluent still suffers from high acidity and high salt content, and this study proposes a solution to this problem. Furthermore, research on the treatment of 3-HAP wastewater has not been reported and this study provides a new case study in the field of wastewater treatment.
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Affiliation(s)
- Guoyou Nong
- School of Resources, Environment and Materials, Guangxi University, Nanning, People's Republic of China
| | - Wenyu Huang
- School of Resources, Environment and Materials, Guangxi University, Nanning, People's Republic of China
- Guangxi Bossco Environmental Protection Technology Co., Ltd, Nanning, People's Republic of China
| | - Lijie Meng
- School of Resources, Environment and Materials, Guangxi University, Nanning, People's Republic of China
| | - Yufan Gao
- School of Resources, Environment and Materials, Guangxi University, Nanning, People's Republic of China
| | - Chengyue Tian
- School of Resources, Environment and Materials, Guangxi University, Nanning, People's Republic of China
| | - Xinyun Zhang
- School of Resources, Environment and Materials, Guangxi University, Nanning, People's Republic of China
| | - Lihai Lu
- Guangxi Bossco Environmental Protection Technology Co., Ltd, Nanning, People's Republic of China
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3
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Zhang M, Xiong J, Zhou L, Li J, Fan J, Li X, Zhang T, Yin Z, Yin H, Liu X, Meng D. Community ecological study on the reduction of soil antimony bioavailability by SRB-based remediation technologies. JOURNAL OF HAZARDOUS MATERIALS 2023; 459:132256. [PMID: 37567138 DOI: 10.1016/j.jhazmat.2023.132256] [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: 05/29/2023] [Revised: 07/27/2023] [Accepted: 08/07/2023] [Indexed: 08/13/2023]
Abstract
Sulfate-reducing bacteria (SRB) were effective in stabilizing Sb. However, the influence of electron donors and acceptors during SRB remediation, as well as the ecological principles involved, remained unclear. In this study, Desulfovibrio desulfuricans ATCC 7757 was utilized to stabilize soil Sb within microcosm. Humic acid (HA) or sodium sulfate (Na2SO4) were employed to enhance SRB capacity. The SRB+HA treatment exhibited the highest Sb stabilization rate, achieving 58.40%. Bacterial community analysis revealed that SRB altered soil bacterial diversity, community composition, and assembly processes, with homogeneous selection as the predominant assembly processes. When HA and Na2SO4 significantly modified the stimulated microbial community succession trajectories, shaped the taxonomic composition and interactions of the bacterial community, they showed converse effect in shaping bacterial community which were both helpful for promoting dissimilatory sulfate reduction. Na2SO4 facilitated SRB-mediated anaerobic reduction and promoted interactions between SRB and bacteria involved in nitrogen and sulfur cycling. The HA stimulated electron generation and storage, and enhanced the interactions between SRB and bacteria possessing heavy metal tolerance or carbohydrate degradation capabilities.
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Affiliation(s)
- Min Zhang
- School of Minerals Processing and Bioengineering, Central South University, Changsha 410083, China; Key laboratory of Biometallurgy, Ministry of Education, Changsha 410083, China
| | - Jing Xiong
- Hunan urban and Rural Environmental Construction Co., Ltd, Changsha 410118, China
| | - Lei Zhou
- Beijing Research Institute of Chemical Engineering and Metallurgy, Beijing 101148, China
| | - Jingjing Li
- Technology Center, China Tobacco Fujian Industrial Co., Ltd., Xiamen, Fujian 361000, China
| | - Jianqiang Fan
- Technology Center, China Tobacco Fujian Industrial Co., Ltd., Xiamen, Fujian 361000, China
| | - Xing Li
- Hunan HIKEE Environmental Technology CO., LTD, Changsha 410221, China
| | - Teng Zhang
- School of Minerals Processing and Bioengineering, Central South University, Changsha 410083, China; Hunan urban and Rural Environmental Construction Co., Ltd, Changsha 410118, China; Key laboratory of Biometallurgy, Ministry of Education, Changsha 410083, China
| | - Zhuzhong Yin
- School of Minerals Processing and Bioengineering, Central South University, Changsha 410083, China; Key laboratory of Biometallurgy, Ministry of Education, Changsha 410083, China
| | - Huaqun Yin
- School of Minerals Processing and Bioengineering, Central South University, Changsha 410083, China; Key laboratory of Biometallurgy, Ministry of Education, Changsha 410083, China
| | - Xueduan Liu
- School of Minerals Processing and Bioengineering, Central South University, Changsha 410083, China; Key laboratory of Biometallurgy, Ministry of Education, Changsha 410083, China
| | - Delong Meng
- School of Minerals Processing and Bioengineering, Central South University, Changsha 410083, China; Key laboratory of Biometallurgy, Ministry of Education, Changsha 410083, China.
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Zhang TT, Zhao QB, Wu XQ, Xu C, Zheng YM, Yu SS. Enhancing sulfate reduction and hydrogen sulfide removal through gas stripping in the acidogenesis phase of a two-phase anaerobic process. BIORESOURCE TECHNOLOGY 2023:129381. [PMID: 37352992 DOI: 10.1016/j.biortech.2023.129381] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/25/2023] [Revised: 06/19/2023] [Accepted: 06/20/2023] [Indexed: 06/25/2023]
Abstract
This study aims at evaluating two-phase and single-phase reactors for treating sulfate wastewater with low COD/SO42- ratios. Additionally, a new process of gas stripping in an acidogenesis phase is proposed to reduce hydrogen sulfide (H2S) inhibition and enhance biomethanation. The two-phase performed better than the single-phase in terms of COD removal, CH4 production and H2S resistance. After 30 days of stripping, the COD and sulfate degradation rates increased from 85.16% to 91.09% and from 49.39% to 63.07% in the two-phase, respectively. In contrast, without stripping, they were from 79.21% to 64.37% and from 50.26% to 53.15% in the single-phase, respectively. The microbial biodiversity was augmented via stripping, including norank_f__Spirochaetaceae, Petrimonas, Desulfurella and Blvii28_wastewater-sludge_group. Stripping operation enhanced the dissimilatory sulfate reduction, amino acid metabolism and possibly sulfate-dependent anaerobic ammonia oxidation (S-ANAMMOX). This study provides a promising strategy to improve sulfate reduction and reduce H2S inhibition under a low COD/SO42- ratio.
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Affiliation(s)
- Ting-Ting Zhang
- CAS Key Laboratory of Urban Pollutant Conversion, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Quan-Bao Zhao
- CAS Key Laboratory of Urban Pollutant Conversion, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, China; University of Chinese Academy of Sciences, Beijing 100049, China.
| | - Xiao-Qiong Wu
- CAS Key Laboratory of Urban Pollutant Conversion, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Cheng Xu
- CAS Key Laboratory of Urban Pollutant Conversion, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Yu-Ming Zheng
- CAS Key Laboratory of Urban Pollutant Conversion, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Sheng-Song Yu
- CAS Key Laboratory of Urban Pollutant Conversion, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, China; CAS Key Laboratory of Urban Pollutant Conversion, Department of Environmental Science and Technology, University of Science and Technology of China, Hefei 230026, China
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5
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Sherief M, Javed MA, Bunker B, Dvorak B, Maraqa MA, Aly Hassan A. In-situ desorption of hydrogen sulfide from activated carbon: effect of temperature, pH and flowrate. INTERNATIONAL JOURNAL OF ENVIRONMENTAL SCIENCE AND TECHNOLOGY 2023. [DOI: 10.1007/s13762-023-04974-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/18/2022] [Revised: 04/11/2023] [Accepted: 04/25/2023] [Indexed: 09/01/2023]
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Genomic Insights into Niche Partitioning across Sediment Depth among Anaerobic Methane-Oxidizing Archaea in Global Methane Seeps. mSystems 2023; 8:e0117922. [PMID: 36927099 PMCID: PMC10134854 DOI: 10.1128/msystems.01179-22] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/18/2023] Open
Abstract
Marine sediments are important methane reservoirs. Methane efflux from the seabed is significantly restricted by anaerobic methanotrophic (ANME) archaea through a process known as anaerobic oxidation of methane (AOM). Different clades of ANME archaea occupy distinct niches in methane seeps, but their underlying molecular mechanisms still need to be fully understood. To provide genetic explanations for the niche partitioning of ANME archaea, we applied comparative genomic analysis to ANME archaeal genomes retrieved from global methane seeps. Our results showed that ANME-2 archaea are more prevalent than ANME-1 archaea in shallow sediments because they carry genes that encode a significantly higher number of outer membrane multiheme c-type cytochromes and flagellar proteins. These features make ANME-2 archaea perform direct interspecies electron transfer better and benefit more from electron acceptors in AOM. Besides, ANME-2 archaea carry genes that encode extra peroxidase compared to ANME-1 archaea, which may lead to ANME-2 archaea better tolerating oxygen toxicity. In contrast, ANME-1 archaea are more competitive in deep layers than ANME-2 archaea because they carry extra genes (mtb and mtt) for methylotrophic methanogenesis and a significantly higher number of frh and mvh genes for hydrogenotrophic methanogenesis. Additionally, ANME-1 archaea carry exclusive genes (sqr, TST, and mddA) involved in sulfide detoxification compared to ANME-2 archaea, leading to stronger sulfide tolerance. Overall, this study reveals the genomic mechanisms shaping the niche partitioning among ANME archaea in global methane seeps. IMPORTANCE Anaerobic methanotrophic (ANME) archaea are important methanotrophs in marine sediment, controlling the flux of biologically generated methane, which plays an essential role in the marine carbon cycle and climate change. So far, no strain of this lineage has been isolated in pure culture, which makes metagenomics one of the fundamental approaches to reveal their metabolic potential. Although the niche partitioning of ANME archaea was frequently reported in different studies, whether this pattern was consistent in global methane seeps had yet to be verified, and little was known about the genetic mechanisms underlying it. Here, we reviewed and analyzed the community structure of ANME archaea in global methane seeps and indicated that the niche partitioning of ANME archaea was statistically supported. Our comparative genomic analysis indicated that the capabilities of interspecies electron transfer, methanogenesis, and the resistance of oxygen and hydrogen sulfide could be critical in defining the distribution of ANME archaea in methane seep sediment.
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7
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Prakash O, Mostafa A, Im S, Song YC, Kang S, Kim DH. Enhanced anaerobic treatment of sulfate-rich wastewater by electrical voltage application. BIORESOURCE TECHNOLOGY 2023; 369:128430. [PMID: 36464001 DOI: 10.1016/j.biortech.2022.128430] [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: 10/22/2022] [Revised: 11/29/2022] [Accepted: 11/30/2022] [Indexed: 06/17/2023]
Abstract
Treatment of sulfate-rich wastewater with high methane recovery is a major concern due to sulfide inhibition. Here, an electrical voltage (EV) aims to enhance methanogenesis and sulfidogenesis to treat sulfate-rich wastewater. Two (control and EV-applied) reactors were operated with a gradual decrease in chemical oxygen demand (COD)/SO42- ratios (CSR). EV-applied reactor (EVR) demonstrated an increase of ∼30 % in methane production and ∼40 % in sulfate removal, compared to the control till CSR of 2.0. At CSR 1.0, the control failed, while EVR still exhibited a stable performance of 50 % COD-methane recovery. Microbial community results showed that the relative abundance of sulfate-reducing bacteria in EVR was 1.5 times higher than the control. Furthermore, higher relative abundance of dissimilatory sulfate reductase (>50 %) and Ni/Fe hydrogenase (x15) genes demonstrated an improved tolerance against H2S toxicity. This study highlights the importance of EV application by minimizing the byproduct inhibition in sulfate-rich wastewater.
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Affiliation(s)
- Om Prakash
- Department of Smart-city Engineering, Inha University, 100 Inha-ro, Michuhol-gu, Incheon 22212, Republic of Korea
| | - Alsayed Mostafa
- Department of Smart-city Engineering, Inha University, 100 Inha-ro, Michuhol-gu, Incheon 22212, Republic of Korea
| | - Seongwon Im
- Department of Smart-city Engineering, Inha University, 100 Inha-ro, Michuhol-gu, Incheon 22212, Republic of Korea
| | - Young-Chae Song
- Department of Environmental Engineering, Korea Maritime and Ocean University, Busan 49112, Republic of Korea
| | - Seoktae Kang
- Department of Civil and Environmental Engineering, KAIST, 291 Daehak-ro, Yuseong-gu, Daejeon 34141, Republic of Korea
| | - Dong-Hoon Kim
- Department of Smart-city Engineering, Inha University, 100 Inha-ro, Michuhol-gu, Incheon 22212, Republic of Korea.
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Saedi Y, Batista JR, Britto R, Grady D. Impacts of co-contaminants and dilution on perchlorate biodegradation using various carbon sources. Biodegradation 2023; 34:301-323. [PMID: 36598629 DOI: 10.1007/s10532-022-10013-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2021] [Accepted: 12/21/2022] [Indexed: 01/05/2023]
Abstract
This research investigates the biodegradation of perchlorate in the presence of the co-contaminants nitrate and chlorate using soluble and slow-release carbon sources. In addition, the impact of bio-augmentation and dilution, which results in lower total dissolved salts (TDS) and contaminant levels, is examined. Laboratory microcosms were conducted using actual groundwater and soils from a contaminated aquifer. The results revealed that both soluble and slow-release carbon sources support biodegradation of contaminants in the sequence nitrate > chlorate > perchlorate. Degradation rates, including and excluding lag times, revealed that the overall impact of the presence of co-contaminants depends on degradation kinetics and the relative concentrations of the contaminants. When the lag time caused by the presence of the co-contaminants is considered, the degradation rates for chlorate and perchlorate were two to three times slower. The results also show that dilution causes lower initial contaminant concentrations, and consequently, slower degradation rates, which is not desirable. On the other hand, the dilution resulting from the injection of amendments to support remediation promotes desirably lower salinity levels. However, the salinity associated with the presence of sulfate does not inhibit biodegradation. The naturally occurring bacteria were able to support the degradation of all contaminants. Bio-augmentation was effective only in diluted microcosms. Proteobacteria and Firmicutes were the dominant phyla identified in the microcosms.
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Affiliation(s)
- Yasaman Saedi
- Department of Civil and Environmental Engineering and Construction, University of Nevada Las Vegas (UNLV), 4505 Maryland Parkway, Las Vegas, NV, 89154-4015, USA
| | - Jacimaria R Batista
- Department of Civil and Environmental Engineering and Construction, University of Nevada Las Vegas (UNLV), 4505 Maryland Parkway, Las Vegas, NV, 89154-4015, USA.
| | - Ronnie Britto
- Tetra Tech Inc, 720 Coleherne Road, Collierville, TN, 38017, USA
| | - Dana Grady
- Tetra Tech Inc, 720 Coleherne Road, Collierville, TN, 38017, USA
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9
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Hao T. Adaptive response mechanisms of granular and flocculent sulfate-reducing sludge toward acidic multi-metal-laden wastewater. WATER RESEARCH 2022; 226:119227. [PMID: 36240714 DOI: 10.1016/j.watres.2022.119227] [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: 05/31/2022] [Revised: 10/06/2022] [Accepted: 10/07/2022] [Indexed: 06/16/2023]
Abstract
Dissimilatory sulfate reduction-based processes have long been a viable option for treating acidic metal-laden wastewater (AMW). Such processes can be optimized through enhancing sulfidogenic activity and the microbial consortia's resilience against a harsh environment. This study investigated how granular and flocculent sulfate-reducing bacteria (SRB) sludge respond to AMW as well as the mechanisms through which they adapt to the wastewater, with particular focuses on the stability of the sulfidogenic activities, metal removal, and the bacteria's resistance over the long-term: the flocculent SRB lost more than 50% of their treatment capacity after 35 days of treating AMW with the presence of Cd2+, Cu2+, Zn2+, and Ni2+ at 30 mg/L each, under pH = 4.5. In contrast, the granular SRB maintained its metal removal rate at 91% throughout the 161-day trial. Despite the SRB abundance remaining at approximate 40%, organics-partial oxidizing genera (Desulfobulbus and Desulfobacter) began to dominate due to their kinetic advantage. The extracellular glycosyl compositions were revealed to be critical for the stability of the granular structure and microbial activity as the extracellular proteins disintegrated irreversible. Usage the molecular dynamic simulation, the mobility of the metal ions in the SRB granular system was suppressed by the presence of a more diverse glycosyl composition compared with the flocculent system (10-50% diffusion coefficients differences). All of the identified glycosyls (especially xylose and rhamnose) exhibited strong interactions with Cu2+ (-470 kJ mol-1), while the maximum binding strength of Cd2+ to glycosyls was greater than -40 kJ mol-1, suggesting a low Cd2+complexation efficiency. The findings of this study shed light on the defensive mechanisms of SRB granules against multi-metal stress, and provide clues for efficient AMW treatment.
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Affiliation(s)
- Tianwei Hao
- Department of Civil and Environmental Engineering, Faculty of Science and Technology, University of Macau, Macau, China.
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10
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Lin D, Fu Y, Li X, Wang L, Hou M, Hu D, Li Q, Zhang Z, Xu C, Qiu S, Wang Z, Boczkaj G. Application of persulfate-based oxidation processes to address diverse sustainability challenges: A critical review. JOURNAL OF HAZARDOUS MATERIALS 2022; 440:129722. [PMID: 35963083 DOI: 10.1016/j.jhazmat.2022.129722] [Citation(s) in RCA: 25] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/08/2022] [Revised: 08/03/2022] [Accepted: 08/04/2022] [Indexed: 06/15/2023]
Abstract
Over the past years, persulfate (PS) is widely applied due to their high versatility and efficacy in decontamination and sterilization. While treatment of organic chemicals, remediation of soil and groundwater, sludge treatment, disinfection on pathogen microorganisms have been covered by most published reviews, there are no comprehensive and specific reviews on its application to address diverse sustainability challenges, including solid waste treatment, resources recovery and regeneration of ecomaterials. PS applications mainly rely on direct oxidation by PS itself or the reactive sulfate radical (SO4•-) or hydroxyl radical (•OH) from the activation of peroxodisulfate (PDS, S2O82-) or peroxymonosulfate (PMS, HSO5-) in SO4•--based advanced oxidation processes (SO4•--AOPs). From a broader perspective of environmental cleanup and sustainability, this review summarizes the various applications of PS except pollutant decontamination and elaborates the possible reaction mechanisms. Additionally, the differences between PS treatment and conventional technologies are highlighted. Challenges, research needs and future prospect are thus discussed to promote the development of the applications of PS-based oxidation processes in niche environmental fields. In all, this review is a call to pay more attention to the possibilities of PS application in practical resource reutilization and environmental protection except widely reported pollutant degradation.
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Affiliation(s)
- Dagang Lin
- Shanghai Key Lab for Urban Ecological Processes and Eco-Restoration, School of Ecological and Environmental Sciences, East China Normal University, Shanghai 200241, China
| | - Yu Fu
- Shanghai Key Lab for Urban Ecological Processes and Eco-Restoration, School of Ecological and Environmental Sciences, East China Normal University, Shanghai 200241, China
| | - Xiaodie Li
- Shanghai Key Lab for Urban Ecological Processes and Eco-Restoration, School of Ecological and Environmental Sciences, East China Normal University, Shanghai 200241, China
| | - Lingli Wang
- Shanghai Key Lab for Urban Ecological Processes and Eco-Restoration, School of Ecological and Environmental Sciences, East China Normal University, Shanghai 200241, China
| | - Meiru Hou
- Shanghai Key Lab for Urban Ecological Processes and Eco-Restoration, School of Ecological and Environmental Sciences, East China Normal University, Shanghai 200241, China
| | - Dongdong Hu
- Shanghai Key Lab for Urban Ecological Processes and Eco-Restoration, School of Ecological and Environmental Sciences, East China Normal University, Shanghai 200241, China
| | - Qingchao Li
- Shanghai Key Lab for Urban Ecological Processes and Eco-Restoration, School of Ecological and Environmental Sciences, East China Normal University, Shanghai 200241, China
| | - Zhen Zhang
- Shanghai Key Lab for Urban Ecological Processes and Eco-Restoration, School of Ecological and Environmental Sciences, East China Normal University, Shanghai 200241, China
| | - Chunxiao Xu
- Shanghai Key Lab for Urban Ecological Processes and Eco-Restoration, School of Ecological and Environmental Sciences, East China Normal University, Shanghai 200241, China
| | - Sifan Qiu
- Shanghai Key Lab for Urban Ecological Processes and Eco-Restoration, School of Ecological and Environmental Sciences, East China Normal University, Shanghai 200241, China
| | - Zhaohui Wang
- Shanghai Key Lab for Urban Ecological Processes and Eco-Restoration, School of Ecological and Environmental Sciences, East China Normal University, Shanghai 200241, China; Technology Innovation Center for Land Spatial Eco-restoration in Metropolitan Area, Ministry of Natural Resources, 3663 N. Zhongshan Road, Shanghai 200062, China; Shanghai Engineering Research Center of Biotransformation of Organic Solid Waste, Shanghai 200241, China.
| | - Grzegorz Boczkaj
- Department of Sanitary Engineering, Faculty of Civil and Environmental Engineering, Gdańsk University of Technology, G. Narutowicza St. 11/12, 80-233 Gdansk, Poland; EkoTech Center, Gdansk University of Technology, G. Narutowicza St. 11/12, 80-233 Gdansk, Poland
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11
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Ostermeyer P, Van Landuyt J, Bonin L, Folens K, Williamson A, Hennebel T, Rabaey K. High rate production of concentrated sulfides from metal bearing wastewater in an expanded bed hydrogenotrophic sulfate reducing bioreactor. ENVIRONMENTAL SCIENCE AND ECOTECHNOLOGY 2022; 11:100173. [PMID: 36158753 PMCID: PMC9488047 DOI: 10.1016/j.ese.2022.100173] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/02/2022] [Revised: 03/28/2022] [Accepted: 03/29/2022] [Indexed: 06/16/2023]
Abstract
Metallurgical wastewaters contain high concentrations of sulfate, up to 15 g L-1. Sulfate-reducing bioreactors are employed to treat these wastewaters, reducing sulfates to sulfides which subsequently co-precipitate metals. Sulfate loading and reduction rates are typically restricted by the total H2S concentration. Sulfide stripping, sulfide precipitation and dilution are the main strategies employed to minimize inhibition by H2S, but can be adversely compromised by suboptimal sulfate reduction, clogging and additional energy costs. Here, metallurgical wastewater was treated for over 250 days using two hydrogenotrophic granular activated carbon expanded bed bioreactors without additional removal of sulfides. H2S toxicity was minimized by operating at pH 8 ± 0.15, resulting in an average sulfate removal of 7.08 ± 0.08 g L-1, sulfide concentrations of 2.1 ± 0.2 g L-1 and peaks up to 2.3 ± 0.2 g L-1. A sulfate reduction rate of 20.6 ± 0.9 g L-1 d-1 was achieved, with maxima up to 27.2 g L-1 d-1, which is among the highest reported considering a literature review of 39 studies. The rates reported here are 6-8 times higher than those reported for other reactors without active sulfide removal and the only reported for expanded bed sulfate-reducing bioreactors using H2. By increasing the influent sulfate concentration and maintaining high sulfide concentrations, sulfate reducers were promoted while fermenters and methanogens were suppressed. Industrial wastewater containing 4.4 g L-1 sulfate, 0.036 g L-1 nitrate and various metals (As, Fe, Tl, Zn, Ni, Sb, Co and Cd) was successfully treated with all metal(loid)s, nitrates and sulfates removed below discharge limits.
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Affiliation(s)
- Pieter Ostermeyer
- Center of Microbial Ecology and Technology (CMET), Faculty of Bioscience Engineering, Ghent University, Coupure Links 653, B-9000, Gent, Belgium
- CAPTURE, Frieda Saeysstraat 1, 9000, Gent, Belgium1
www.capture-resources.be
| | - Josefien Van Landuyt
- Center of Microbial Ecology and Technology (CMET), Faculty of Bioscience Engineering, Ghent University, Coupure Links 653, B-9000, Gent, Belgium
| | - Luiza Bonin
- Center of Microbial Ecology and Technology (CMET), Faculty of Bioscience Engineering, Ghent University, Coupure Links 653, B-9000, Gent, Belgium
- CAPTURE, Frieda Saeysstraat 1, 9000, Gent, Belgium1
www.capture-resources.be
| | - Karel Folens
- Center of Microbial Ecology and Technology (CMET), Faculty of Bioscience Engineering, Ghent University, Coupure Links 653, B-9000, Gent, Belgium
| | - Adam Williamson
- Center of Microbial Ecology and Technology (CMET), Faculty of Bioscience Engineering, Ghent University, Coupure Links 653, B-9000, Gent, Belgium
- CENBG, Université de Bordeaux, CNRS-IN2P3/, 19 chemin du Solarium, CS10120, 33175, Gradignan, France
| | - Tom Hennebel
- Center of Microbial Ecology and Technology (CMET), Faculty of Bioscience Engineering, Ghent University, Coupure Links 653, B-9000, Gent, Belgium
- CAPTURE, Frieda Saeysstraat 1, 9000, Gent, Belgium1
www.capture-resources.be - Umicore, Group Research & Development, Competence Area Recycling and Extraction Technologies, Watertorenstraat 33, B-2250, Olen, Belgium
| | - Korneel Rabaey
- Center of Microbial Ecology and Technology (CMET), Faculty of Bioscience Engineering, Ghent University, Coupure Links 653, B-9000, Gent, Belgium
- CAPTURE, Frieda Saeysstraat 1, 9000, Gent, Belgium1
www.capture-resources.be
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12
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Dai S, Korth B, Schwab L, Aulenta F, Vogt C, Harnisch F. Deciphering the fate of sulfate in one- and two-chamber bioelectrochemical systems. Electrochim Acta 2022. [DOI: 10.1016/j.electacta.2022.139942] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
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13
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Zhai X, Li S, Wang Y, Cao S, Sun W, Liu M, Mao G, Cao B, Wang H. A magnet-renewable electroanalysis strategy for hydrogen sulfide in aquaculture freshwater using magnetic silver metal-organic frameworks. Anal Chim Acta 2022; 1195:339450. [DOI: 10.1016/j.aca.2022.339450] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2021] [Revised: 12/30/2021] [Accepted: 01/04/2022] [Indexed: 11/15/2022]
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Schönborn JW, Stewart FA, Enriquez KM, Akhtar I, Droste A, Waschina S, Beller M. Modeling Drosophila gut microbe interactions reveals metabolic interconnectivity. iScience 2021; 24:103216. [PMID: 34712918 PMCID: PMC8528732 DOI: 10.1016/j.isci.2021.103216] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2021] [Revised: 07/08/2021] [Accepted: 09/30/2021] [Indexed: 11/19/2022] Open
Abstract
We know a lot about varying gut microbiome compositions. Yet, how the bacteria affect each other remains elusive. In mammals, this is largely based on the sheer complexity of the microbiome with at least hundreds of different species. Thus, model organisms such as Drosophila melanogaster are commonly used to investigate mechanistic questions as the microbiome consists of only about 10 leading bacterial species. Here, we isolated gut bacteria from laboratory-reared Drosophila, sequenced their respective genomes, and used this information to reconstruct genome-scale metabolic models. With these, we simulated growth in mono- and co-culture conditions and different media including a synthetic diet designed to grow Drosophila melanogaster. Our simulations reveal a synergistic growth of some but not all gut microbiome members, which stems on the exchange of distinct metabolites including tricarboxylic acid cycle intermediates. Culturing experiments confirmed our predictions. Our study thus demonstrates the possibility to predict microbiome-derived growth-promoting cross-feeding.
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Affiliation(s)
- Jürgen W. Schönborn
- Institut für Mathematische Modellierung Biologischer Systeme, Heinrich-Heine-Universität Düsseldorf, 40225 Düsseldorf, Germany
- Systembiologie des Fettstoffwechsels, Heinrich-Heine-Universität Düsseldorf, 40225 Düsseldorf, Germany
| | - Fiona A. Stewart
- Institut für Mathematische Modellierung Biologischer Systeme, Heinrich-Heine-Universität Düsseldorf, 40225 Düsseldorf, Germany
- Systembiologie des Fettstoffwechsels, Heinrich-Heine-Universität Düsseldorf, 40225 Düsseldorf, Germany
| | - Kerstin Maas Enriquez
- Institut für Mathematische Modellierung Biologischer Systeme, Heinrich-Heine-Universität Düsseldorf, 40225 Düsseldorf, Germany
- Systembiologie des Fettstoffwechsels, Heinrich-Heine-Universität Düsseldorf, 40225 Düsseldorf, Germany
| | - Irfan Akhtar
- Institut für Mathematische Modellierung Biologischer Systeme, Heinrich-Heine-Universität Düsseldorf, 40225 Düsseldorf, Germany
- Systembiologie des Fettstoffwechsels, Heinrich-Heine-Universität Düsseldorf, 40225 Düsseldorf, Germany
| | - Andrea Droste
- Institut für Mathematische Modellierung Biologischer Systeme, Heinrich-Heine-Universität Düsseldorf, 40225 Düsseldorf, Germany
- Systembiologie des Fettstoffwechsels, Heinrich-Heine-Universität Düsseldorf, 40225 Düsseldorf, Germany
| | - Silvio Waschina
- Christian-Albrechts-University Kiel, Institute of Human Nutrition and Food Science, Nutriinformatics, Heinrich-Hecht-Platz 10, 24118 Kiel, Germany
| | - Mathias Beller
- Institut für Mathematische Modellierung Biologischer Systeme, Heinrich-Heine-Universität Düsseldorf, 40225 Düsseldorf, Germany
- Systembiologie des Fettstoffwechsels, Heinrich-Heine-Universität Düsseldorf, 40225 Düsseldorf, Germany
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15
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Oliveira CA, Fuess LT, Soares LA, Damianovic MHRZ. Increasing salinity concentrations determine the long-term participation of methanogenesis and sulfidogenesis in the biodigestion of sulfate-rich wastewater. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2021; 296:113254. [PMID: 34271347 DOI: 10.1016/j.jenvman.2021.113254] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/25/2021] [Revised: 06/27/2021] [Accepted: 07/08/2021] [Indexed: 06/13/2023]
Abstract
The competition between sulfate-reducing bacteria (SRB) and methanogenic archaea (MA) depends on several factors, such as the COD/SO42- ratio, sensitivity to inhibitors and even the length of the operating period in reactors. Among the inhibitors, salinity, a characteristic common to diverse types of industrial effluents, can act as an important factor. This work aimed to evaluate the long-term participation of sulfidogenesis and methanogenesis in the sulfate-rich wastewater process (COD/SO42- = 1.6) in an anaerobic structured-bed reactor (AnSTBR) using sludge not adapted to salinity. The AnSTBR was operated for 580 d under mesophilic temperature (30 °C). Salinity levels were gradually increased from 1.7 to 50 g-NaCl L-1. Up to 35 g-NaCl L-1, MA and SRB equally participated in COD conversion, with a slight predominance of the latter (53 ± 11%). A decrease in COD removal efficiency associated with acetate accumulation was further observed when applying 50 g-NaCl L-1. The sulfidogenic pathway corresponded to 62 ± 17% in this case, indicating the inhibition of MA. Overall, sulfidogenic activity was less sensitive (25%-inhibition) to high salinity levels compared to methanogenesis (100%-inhibition considering the methane yield). The wide spectrum of SRB populations at different salinity levels, namely, the prevalence of Desulfovibrio sp. up to 35 g-NaCl L-1 and the additional participation of the genera Desulfobacca, Desulfatirhabdium, and Desulfotomaculum at 50 g-NaCl-1 explain such patterns. Conversely, the persistence of Methanosaeta genus was not sufficient to sustain methane production. Hence, exploiting SRB populations is imperative to anaerobically remediating saline wastewaters.
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Affiliation(s)
- Cristiane Arruda Oliveira
- Biological Processes Laboratory, Center for Research, Development and Innovation in Environmental Engineering, São Carlos School of Engineering (EESC), University of São Paulo (USP), Av. João Dagnone, 1100, Santa Angelina, 13.563-120, São Carlos, SP, Brazil.
| | - Lucas Tadeu Fuess
- Biological Processes Laboratory, Center for Research, Development and Innovation in Environmental Engineering, São Carlos School of Engineering (EESC), University of São Paulo (USP), Av. João Dagnone, 1100, Santa Angelina, 13.563-120, São Carlos, SP, Brazil; Chemical Engineering Department, Polytechnic School, University of São Paulo (DEQ/EP/USP), Av. Prof. Lineu Prestes 580, Bloco 18, Conjunto Das Químicas, SP, 05508-000, Brazil
| | - Lais Américo Soares
- Biological Processes Laboratory, Center for Research, Development and Innovation in Environmental Engineering, São Carlos School of Engineering (EESC), University of São Paulo (USP), Av. João Dagnone, 1100, Santa Angelina, 13.563-120, São Carlos, SP, Brazil
| | - Márcia Helena Rissato Zamariolli Damianovic
- Biological Processes Laboratory, Center for Research, Development and Innovation in Environmental Engineering, São Carlos School of Engineering (EESC), University of São Paulo (USP), Av. João Dagnone, 1100, Santa Angelina, 13.563-120, São Carlos, SP, Brazil
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16
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Sulonen MLK, Baeza JA, Gabriel D, Guisasola A. Optimisation of the operational parameters for a comprehensive bioelectrochemical treatment of acid mine drainage. JOURNAL OF HAZARDOUS MATERIALS 2021; 409:124944. [PMID: 33422754 DOI: 10.1016/j.jhazmat.2020.124944] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/15/2020] [Revised: 12/09/2020] [Accepted: 12/21/2020] [Indexed: 06/12/2023]
Abstract
Bioelectrochemical systems provide a promising tool for the treatment of acid mine drainage (AMD). Biological sulphate reduction powered with electrical energy consumes acidity and produces sulphide, which can precipitate metals. However, the produced sulphide and the changes in pH resulting from the biological processes affect the efficiency and the environmental impacts of this treatment significantly. In this work, the effects of pH and sulphur speciation on the sulphate reduction rate (SRR) and comprehensive AMD treatment were evaluated in two-chamber microbial electrolysis cells at a cathode potential of -0.8 V vs. NHE. The increase of initial sulphate concentration from below 1000 mg to above 1500 mg S-SO42-/L increased SRR from 121 ± 25 to 177 ± 19 mg S-SO42-/L/d. SRR further increased to 347 mg S-SO42-/L/d when the operation mode was changed from batch to periodical addition of sulphate and acidity (363 mg S-SO42-/L/d and 22.6 mmol H+/L/d, respectively). The average SRR remained above 150 mg S-SO42-/L/d even at pH above 8.5 and with the total dissolved sulphide concentration increasing above 1300 mg S-TDSu/L. Operation at pH above 8 enabled the recovery of over 90% of the sulphur as dissolved sulphide and thus assisted in minimising the formation and release of toxic H2S.
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Affiliation(s)
- Mira L K Sulonen
- GENOCOV Research Group, Departament d'Enginyeria Química, Biològica i Ambiental. Escola d'Enginyeria, Universitat Autònoma de Barcelona, 08193 Bellaterra, Barcelona, Spain.
| | - Juan Antonio Baeza
- GENOCOV Research Group, Departament d'Enginyeria Química, Biològica i Ambiental. Escola d'Enginyeria, Universitat Autònoma de Barcelona, 08193 Bellaterra, Barcelona, Spain
| | - David Gabriel
- GENOCOV Research Group, Departament d'Enginyeria Química, Biològica i Ambiental. Escola d'Enginyeria, Universitat Autònoma de Barcelona, 08193 Bellaterra, Barcelona, Spain
| | - Albert Guisasola
- GENOCOV Research Group, Departament d'Enginyeria Química, Biològica i Ambiental. Escola d'Enginyeria, Universitat Autònoma de Barcelona, 08193 Bellaterra, Barcelona, Spain
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Jiang K, Cheng Z, Lou Z, Wang L, Lu H, Xu B, Jin N. Chemical and olfactive impacts of organic matters on odor emission patterns from the simulated construction and demolition waste landfills. J Environ Sci (China) 2021; 103:196-206. [PMID: 33743901 DOI: 10.1016/j.jes.2020.10.016] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2020] [Revised: 10/19/2020] [Accepted: 10/20/2020] [Indexed: 06/12/2023]
Abstract
The explosive increase of construction and demolition waste (CDW) caused the insufficient source separation and emergency disposal at domestic waste landfills in many developing countries. Some organic fractions were introduced to the CDW landfill process and resulted in serious odor pollution. To comprehensively explore the impacts of organic matters on odor emission patterns, five CDW landfills (OIL), with organic matters/ inert CDW components (O/I) from 5% to 30%, and the control group only with inert components (IL) or organics (OL) were simulated at the laboratory. The chemical and olfactive characters of odors were evaluated using the emission rate of 94 odorants content (ERtotal), theory odor concentration (TOCtotal), and e-nose concentration (ERENC), and their correlations with waste properties were also analyzed. It was found that the main contributors to ERtotal (IL: 93.0% NH3; OIL: 41.6% sulfides, 31.0% NH3, 25.9% oxygenated compounds) and TOCtotal (IL: 64.1% CH3SH, 28.2% NH3; OIL: 71.7% CH3SH, 24.8% H2S) changed significantly. With the rise of O/I, ERtotal, TOCtotal, and ERENC increased by 10.9, 20.6, and 2.1 times, respectively. And the organics content in CDW should be less than 10% (i.e., DOC<101.3 mg/L). The good regressions between waste properties (DOC, DN, pH) and ERENC- (r=0.86, 0.86, -0.88, p<0.05), TOCtotal- (r=0.82, 0.79, -0.82, p<0.05) implied that the carbon sources and acidic substances relating to organics degradation might result in that increase. Besides, the correlation analysis results (ERENC-vs.TOCtotal-, r=0.96, p<0.01; vs.ERtotal-, r=0.86, p<0.05) indicated that e-nose perhaps was a reliable odor continuous monitoring tool for CDW landfills.
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Affiliation(s)
- Kunyu Jiang
- College of Environmental and Chemical Engineering, Shanghai University of Electric Power, Shanghai 200090, China
| | - Zhaowen Cheng
- School of Environmental Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Ziyang Lou
- College of Environmental and Chemical Engineering, Shanghai University of Electric Power, Shanghai 200090, China; School of Environmental Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, China; Shanghai Engineering Research Center of Solid Waste Treatment and Resource Recovery, Shanghai 200092, China; Institute for Urban Governance, Shanghai Jiao Tong University, Shanghai 200240, China.
| | - Luochun Wang
- College of Environmental and Chemical Engineering, Shanghai University of Electric Power, Shanghai 200090, China.
| | - Hailin Lu
- Shanghai Environment Group co., Ltd, Shanghai 200336, China
| | - Bijun Xu
- Shanghai Environmental Sanitation Engineering Design Institute Co., Ltd, Shanghai 200001, China
| | - Ningben Jin
- Shanghai Environmental Sanitation Engineering Design Institute Co., Ltd, Shanghai 200001, China
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18
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Johnson CR, Antonopoulos DA, Boyanov MI, Flynn TM, Koval JC, Kemner KM, O'Loughlin EJ. Reduction of Sb(V) by coupled biotic-abiotic processes under sulfidogenic conditions. Heliyon 2021; 7:e06275. [PMID: 33681496 PMCID: PMC7930292 DOI: 10.1016/j.heliyon.2021.e06275] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2020] [Revised: 01/26/2021] [Accepted: 02/09/2021] [Indexed: 01/05/2023] Open
Abstract
Increasing use and mining of antimony (Sb) has resulted in greater concern involving its fate and transport in the environment. Antimony(V) and (III) are the two most environmentally relevant oxidation states, but little is known about the redox transitions between the two in natural systems. To better understand the behavior of antimony in anoxic environments, the redox transformations of Sb(V) were studied in biotic and abiotic reactors. The biotic reactors contained Sb(V) (2 mM as KSb(OH)6), ferrihydrite (50 mM Fe(III)), sulfate (10 mM), and lactate (10 mM), that were inoculated with sediment from a wetland. In the abiotic reactors, The interaction of Sb(V) with green rust, magnetite, siderite, vivianite or mackinawite was examined under abiotic conditions. Changes in the concentrations of Sb, Fe(II), sulfate, and lactate, as well as the microbial community composition were monitored over time. Lactate was rapidly fermented to acetate and propionate in the bioreactors, with the latter serving as the primary electron donor for dissimilatory sulfate reduction (DSR). The reduction of ferrihydrite was primarily abiotic, being driven by biogenic sulfide. Sb and Fe K-edge X-ray absorption near edge structure (XANES) analysis showed reduction of Sb(V) to Sb(III) within 4 weeks, concurrent with DSR and the formation of FeS. Sb K-edge extended X-ray absorption fine structure (EXAFS) spectroscopy analysis indicated that the reduced phase was a mixture of S- and O-coordinated Sb(III). Reduction of Sb(V) was not observed in the presence of magnetite, siderite, or green rust, and limited reduction occurred with vivianite. However, reduction of Sb(V) to amorphous Sb(III) sulfide occurred with mackinawite. These results are consistent with abiotic reduction of Sb(V) by biogenic sulfide and reveal a substantial influence of Fe oxides on the speciation of Sb(III), which illustrates the tight coupling of Sb speciation with the biogeochemical cycling of S and Fe.
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Affiliation(s)
- Clayton R Johnson
- Biosciences Division, Argonne National Laboratory, Lemont, IL 60439-4843
| | | | - Maxim I Boyanov
- Biosciences Division, Argonne National Laboratory, Lemont, IL 60439-4843.,Bulgarian Academy of Sciences, Institute of Chemical Engineering, Sofia, 1113, Bulgaria
| | - Theodore M Flynn
- Biosciences Division, Argonne National Laboratory, Lemont, IL 60439-4843
| | - Jason C Koval
- Biosciences Division, Argonne National Laboratory, Lemont, IL 60439-4843
| | - Kenneth M Kemner
- Biosciences Division, Argonne National Laboratory, Lemont, IL 60439-4843
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Sulphate-Reducing Bacteria’s Response to Extreme pH Environments and the Effect of Their Activities on Microbial Corrosion. APPLIED SCIENCES-BASEL 2021. [DOI: 10.3390/app11052201] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Sulphate-reducing bacteria (SRB) are dominant species causing corrosion of various types of materials. However, they also play a beneficial role in bioremediation due to their tolerance of extreme pH conditions. The application of sulphate-reducing bacteria (SRB) in bioremediation and control methods for microbiologically influenced corrosion (MIC) in extreme pH environments requires an understanding of the microbial activities in these conditions. Recent studies have found that in order to survive and grow in high alkaline/acidic condition, SRB have developed several strategies to combat the environmental challenges. The strategies mainly include maintaining pH homeostasis in the cytoplasm and adjusting metabolic activities leading to changes in environmental pH. The change in pH of the environment and microbial activities in such conditions can have a significant impact on the microbial corrosion of materials. These bacteria strategies to combat extreme pH environments and their effect on microbial corrosion are presented and discussed.
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Fernández-Palacios E, Zhou X, Mora M, Gabriel D. Microbial Diversity Dynamics in a Methanogenic-Sulfidogenic UASB Reactor. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2021; 18:ijerph18031305. [PMID: 33535604 PMCID: PMC7908407 DOI: 10.3390/ijerph18031305] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/27/2020] [Revised: 01/22/2021] [Accepted: 01/27/2021] [Indexed: 11/16/2022]
Abstract
In this study, the long-term performance and microbial dynamics of an Upflow Anaerobic Sludge Blanket (UASB) reactor targeting sulfate reduction in a SOx emissions treatment system were assessed using crude glycerol as organic carbon source and electron donor under constant S and C loading rates. The reactor was inoculated with granular sludge obtained from a pulp and paper industry and fed at a constant inlet sulfate concentration of 250 mg S-SO42−L−1 and a constant C/S ratio of 1.5 ± 0.3 g Cg−1 S for over 500 days. Apart from the regular analysis of chemical species, Illumina analyses of the 16S rRNA gene were used to study the dynamics of the bacterial community along with the whole operation. The reactor was sampled along the operation to monitor its diversity and the changes in targeted species to gain insight into the performance of the sulfidogenic UASB. Moreover, studies on the stratification of the sludge bed were performed by sampling at different reactor heights. Shifts in the UASB performance correlated well with the main shifts in microbial communities of interest. A progressive loss of the methanogenic capacity towards a fully sulfidogenic UASB was explained by a progressive wash-out of methanogenic Archaea, which were outcompeted by sulfate-reducing bacteria. Desulfovibrio was found as the main sulfate-reducing genus in the reactor along time. A progressive reduction in the sulfidogenic capacity of the UASB was found in the long run due to the accumulation of a slime-like substance in the UASB.
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21
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Dutta A, Smith B, Goldman T, Walker L, Streets M, Eden B, Dirmeier R, Bowman JS. Understanding Microbial Community Dynamics in Up-Flow Bioreactors to Improve Mitigation Strategies for Oil Souring. Front Microbiol 2020; 11:585943. [PMID: 33343524 PMCID: PMC7744764 DOI: 10.3389/fmicb.2020.585943] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2020] [Accepted: 11/09/2020] [Indexed: 01/04/2023] Open
Abstract
Oil souring occurs when H2S is generated in oil reservoirs. This not only leads to operational risks and health hazards but also increases the cost of refining crude oil. Sulfate-reducing microorganisms are considered to be the main source of the H2S that leads to oil souring. Substrate competition between nitrate-reducing and sulfate-reducing microorganisms makes biosouring mitigation via the addition of nitrate salts a viable strategy. This study explores the shift in microbial community across different phases of biosouring and mitigation. Anaerobic sand-filled columns wetted with seawater and/or oil were used to initiate the processes of sulfidogenesis, followed by mitigation with nitrate, rebound sulfidogenesis, and rebound control phases (via nitrate and low salinity treatment). Shifts in microbial community structure and function were observed across different phases of seawater and oil setups. Marine bacterial taxa (Marinobacter, Marinobacterium, Thalassolituus, Alteromonas, and Cycloclasticus) were found to be the initial responders to the application of nitrate during mitigation of sulfidogenesis in both seawater- and oil- wetted columns. Autotrophic groups (Sulfurimonas and Desulfatibacillum) were found to be higher in seawater-wetted columns compared to oil-wetted columns, suggesting the potential for autotrophic volatile fatty acid (VFA) production in oil-field aquifers when seawater is introduced. Results indicate that fermentative (such as Bacteroidetes) and oil-degrading bacteria (such as Desulfobacula toluolica) play an important role in generating electron donors in the system, which may sustain biosouring and nitrate reduction. Persistence of certain microorganisms (Desulfobacula) across different phases was observed, which may be due to a shift in metabolic lifestyle of the microorganisms across phases, or zonation based on nutrient availability in the columns. Overall results suggest mitigation strategies for biosouring can be improved by monitoring VFA concentrations and microbial community dynamics in the oil reservoirs during secondary recovery of oil.
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Affiliation(s)
- Avishek Dutta
- Integrative Oceanography Division, Scripps Institution of Oceanography, University of California San Diego, La Jolla, CA, United States
| | - Ben Smith
- BP Upstream Technology, London, United Kingdom
| | | | - Leanne Walker
- Rawwater Engineering Company Ltd., Culcheth, United Kingdom
| | | | - Bob Eden
- Rawwater Engineering Company Ltd., Culcheth, United Kingdom
| | | | - Jeff S. Bowman
- Integrative Oceanography Division, Scripps Institution of Oceanography, University of California San Diego, La Jolla, CA, United States
- Center for Microbiome Innovation, University of California, San Diego, La Jolla, CA, United States
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22
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Sousa JAB, Bolgár A, Christel S, Dopson M, Bijmans MFM, Stams AJM, Plugge CM. Immobilization of sulfate and thiosulfate-reducing biomass on sand under haloalkaline conditions. THE SCIENCE OF THE TOTAL ENVIRONMENT 2020; 745:141017. [PMID: 32736107 DOI: 10.1016/j.scitotenv.2020.141017] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/16/2020] [Revised: 07/14/2020] [Accepted: 07/14/2020] [Indexed: 06/11/2023]
Abstract
Biological sulfate and thiosulfate reduction under haloalkaline conditions can be applied to treat waste streams from biodesulfurization systems. However, the lack of microbial aggregation under haloalkaline conditions limits the volumetric rates of sulfate and thiosulfate reducing bioreactors. As biomass retention in haloalkaline bioreactors has not been studied before, sand was chosen as a biomass carrier material to increase cell retention and consequently raise the volumetric rates. The results showed that ~10 fold higher biomass concentrations could be achieved with sand, compared to previous studies without carrier addition. The volumetric rates of sulfate/thiosulfate reduction increased approximately 4.5 times. Biomass attachment to the sand was restricted to cavities within the sand particles. Acetate produced by acetogenic bacteria from H2 and CO2 was used as carbon source for biomass growth, while formate that was also produced from H2 and CO2 enhanced sulfate reduction. The microbial community composition was analyzed by 16S rRNA gene amplicon sequencing, and Tindallia related bacteria were probably responsible for formate formation from hydrogen. The community attached to the sand particles was similar to the suspended fraction, but the relative abundance of sequences most closely related to Desulfohalobiaceae was much higher in the attached fraction compared to the suspended fraction (30% and 13%, respectively). The results indicated that even though the biomass attachment to sand was poor, it still increased the biomass concentration and consequently the sulfate and thiosulfate reduction volumetric rates.
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Affiliation(s)
- João A B Sousa
- Laboratory of Microbiology, Wageningen University & Research, Stippeneng 4, 6708 WE Wageningen, the Netherlands; Wetsus, European Centre of Excellence for Sustainable Water Technology, Oostergoweg 9, 8911 MA Leeuwarden, the Netherlands
| | - Andrea Bolgár
- Wetsus, European Centre of Excellence for Sustainable Water Technology, Oostergoweg 9, 8911 MA Leeuwarden, the Netherlands
| | - Stephan Christel
- Centre for Ecology and Evolution in Microbial Model Systems (EEMiS), Linnaeus University, SE-391 82 Kalmar, Sweden
| | - Mark Dopson
- Centre for Ecology and Evolution in Microbial Model Systems (EEMiS), Linnaeus University, SE-391 82 Kalmar, Sweden
| | - Martijn F M Bijmans
- Wetsus, European Centre of Excellence for Sustainable Water Technology, Oostergoweg 9, 8911 MA Leeuwarden, the Netherlands
| | - Alfons J M Stams
- Laboratory of Microbiology, Wageningen University & Research, Stippeneng 4, 6708 WE Wageningen, the Netherlands
| | - Caroline M Plugge
- Laboratory of Microbiology, Wageningen University & Research, Stippeneng 4, 6708 WE Wageningen, the Netherlands; Wetsus, European Centre of Excellence for Sustainable Water Technology, Oostergoweg 9, 8911 MA Leeuwarden, the Netherlands.
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23
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Florentino AP, Costa RB, Hu Y, O'Flaherty V, Lens PNL. Long Chain Fatty Acid Degradation Coupled to Biological Sulfidogenesis: A Prospect for Enhanced Metal Recovery. Front Bioeng Biotechnol 2020; 8:550253. [PMID: 33195115 PMCID: PMC7644789 DOI: 10.3389/fbioe.2020.550253] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2020] [Accepted: 09/25/2020] [Indexed: 12/19/2022] Open
Abstract
This research assessed the microbiological suitability of oleate degradation coupled to sulfidogenesis by enriching communities from anaerobic sludge treating dairy products with S0, SO 3 2 - , SO 4 2 - , and S2 O 3 2 - as electron acceptors. The limiting factor hampering highly efficient oleate degradation was investigated in batch reactors. The best sulfidogenic performance coupled to specialization of the enriched bacterial community was obtained for S0- and S2 O 3 2 - -reducing enrichments, with 15.6 (± 0.2) and 9.0 (± 0.0) mM of sulfide production, respectively. Microbial community analyses revealed predominance of Enterobacteraceae (50.6 ± 5.7%), Sulfurospirillum (23.1 ± 0.1%), Bacteroides (7.5 ± 1.5%) and Seleniivibrio (6.9 ± 1.1%) in S0-reducing cultures. In S2 O 3 2 - -reducing enrichments, the genus Desulfurella predominated (49.2 ± 1.2%), followed by the Enterobacterales order (20.9 ± 2.3%). S0-reducing cultures were not affected by oleate concentrations up to 5 mM, while S2 O 3 2 - -reducing cultures could degrade oleate in concentrations up to 10 mM, with no significant impact on sulfidogenesis. In sequencing batch reactors operated with sulfide stripping, the S0-reducing enrichment produced 145.8 mM sulfide, precipitating Zn as ZnS in a separate tank. The S2 O 3 2 - fed bioreactor only produced 23.4 mM of sulfide precipitated as ZnS. The lower sulfide production likely happened due to sulfite toxicity, an intermediate of thiosulfate reduction. Therefore, elemental sulfur reduction represents an excellent alternative to the currently adopted approaches for LCFA degradation. To the best of our knowledge, this is the first report of oleate degradation with the flux of electrons totally diverted toward sulfide production for metal precipitation, showing great efficiency of LCFA degradation coupled to high levels of metals precipitated as metal sulfide.
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Affiliation(s)
- Anna Patrícya Florentino
- Department of Microbiology, School of Natural Sciences and Ryan Institute, National University of Ireland Galway, Galway, Ireland
| | - Rachel Biancalana Costa
- Department of Biochemistry and Organic Chemistry, Institute of Chemistry, São Paulo State University, Araraquara, Brazil
| | - Yuansheng Hu
- Department of Civil Engineering, School of Engineering, College of Science and Engineering, National University of Ireland Galway, Galway, Ireland
| | - Vincent O'Flaherty
- Department of Microbiology, School of Natural Sciences and Ryan Institute, National University of Ireland Galway, Galway, Ireland
| | - Piet N L Lens
- Department of Microbiology, School of Natural Sciences and Ryan Institute, National University of Ireland Galway, Galway, Ireland
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Tang Z, Fan F, Deng S, Wang D. Mercury in rice paddy fields and how does some agricultural activities affect the translocation and transformation of mercury - A critical review. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2020; 202:110950. [PMID: 32800226 DOI: 10.1016/j.ecoenv.2020.110950] [Citation(s) in RCA: 41] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/08/2020] [Revised: 06/22/2020] [Accepted: 06/25/2020] [Indexed: 06/11/2023]
Abstract
Human exposure to methylmercury (MeHg) through rice consumption is raising health concerns. It has long been recognized that MeHg found in rice grain predominately originated from paddy soil. Anaerobic conditions in paddy fields promote Hg methylation, potentially leading to high MeHg concentrations in rice grain. Understanding the transformation and migration of Hg in the rice paddy system, as well as the effects of farming activities, are keys to assessing risks and developing potential mitigation strategies. Therefore, this review examines the current state of knowledge on: 1) sources of Hg in paddy fields; 2) how MeHg and inorganic Hg (IHg) are transformed (including abiotic and biotic processes); 3) how IHg and MeHg enter and translocate in rice plants; and 4) how regular farming activities (including the application of fertilizer, cultivation methods, choice of cultivar), affect Hg cycling in the paddy field system. Current issues and controversies on Hg transformation and migration in the paddy field system are also discussed.
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Affiliation(s)
- Zhenya Tang
- Faculty of Environmental Science & Engineering, Kunming University of Science &Technology, Kunming, China; Interdisciplinary Research Center for Agriculture Green Development in Yangtze River Basin, Southwest University, Chongqing, China.
| | - Fangling Fan
- School of Energy and Environment Science, Yunnan Normal University, Kunming, China.
| | - Shiping Deng
- Department of Plant and Soil Sciences, Oklahoma State University, Stillwater, OK, USA.
| | - Dingyong Wang
- Interdisciplinary Research Center for Agriculture Green Development in Yangtze River Basin, Southwest University, Chongqing, China; State Cultivation Base of Eco-agriculture for Southwest Mountainous Land, College of Resources and Environment, Southwest University, Chongqing, China.
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Zhang K, Zheng X, He Z, Yang T, Shu L, Xiao F, Wu Y, Wang B, Li Z, Chen P, Yan Q. Fish growth enhances microbial sulfur cycling in aquaculture pond sediments. Microb Biotechnol 2020; 13:1597-1610. [PMID: 32940416 PMCID: PMC7415356 DOI: 10.1111/1751-7915.13622] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2020] [Revised: 06/08/2020] [Accepted: 06/11/2020] [Indexed: 12/20/2022] Open
Abstract
Microbial sulfate reduction and sulfur oxidation are vital processes to enhance organic matter degradation in sediments. However, the diversity and composition of sulfate-reducing bacteria (SRB) and sulfur-oxidizing bacteria (SOB) and their environmental driving factors are still poorly understood in aquaculture ponds, which received mounting of organic matter. In this study, bacterial communities, SRB and SOB from sediments of aquaculture ponds with different sizes of grass carp (Ctenopharyngodon idellus) were analysed using high-throughput sequencing and quantitative real-time PCR (qPCR). The results indicated that microbial communities in aquaculture pond sediments of large juvenile fish showed the highest richness and abundance of SRB and SOB, potentially further enhancing microbial sulfur cycling. Specifically, SRB were dominated by Desulfobulbus and Desulfovibrio, whereas SOB were dominated by Dechloromonas and Leptothrix. Although large juvenile fish ponds had relatively lower concentrations of sulfur compounds (i.e. total sulfur, acid-volatile sulfide and elemental sulfur) than those of larval fish ponds, more abundant SRB and SOB were found in the large juvenile fish ponds. Further redundancy analysis (RDA) and linear regression indicated that sulfur compounds and sediment suspension are the major environmental factors shaping the abundance and community structure of SRB and SOB in aquaculture pond sediments. Findings of this study expand our current understanding of microbial driving sulfur cycling in aquaculture ecosystems and also provide novel insights for ecological and green aquaculture managements.
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Affiliation(s)
- Keke Zhang
- Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai)School of Environmental Science and EngineeringEnvironmental Microbiomics Research CenterSun Yat‐sen UniversityGuangzhouGuangdong510006China
| | - Xiafei Zheng
- Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai)School of Environmental Science and EngineeringEnvironmental Microbiomics Research CenterSun Yat‐sen UniversityGuangzhouGuangdong510006China
| | - Zhili He
- Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai)School of Environmental Science and EngineeringEnvironmental Microbiomics Research CenterSun Yat‐sen UniversityGuangzhouGuangdong510006China
- College of AgronomyHunan Agricultural UniversityChangsha410128China
| | - Tony Yang
- Swift Current Research and Development CentreAgriculture & Agri‐Food CanadaSwift CurrentSKCanada
| | - Longfei Shu
- Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai)School of Environmental Science and EngineeringEnvironmental Microbiomics Research CenterSun Yat‐sen UniversityGuangzhouGuangdong510006China
| | - Fanshu Xiao
- Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai)School of Environmental Science and EngineeringEnvironmental Microbiomics Research CenterSun Yat‐sen UniversityGuangzhouGuangdong510006China
| | - Yongjie Wu
- Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai)School of Environmental Science and EngineeringEnvironmental Microbiomics Research CenterSun Yat‐sen UniversityGuangzhouGuangdong510006China
| | - Binhao Wang
- Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai)School of Environmental Science and EngineeringEnvironmental Microbiomics Research CenterSun Yat‐sen UniversityGuangzhouGuangdong510006China
| | - Zhou Li
- Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai)School of Environmental Science and EngineeringEnvironmental Microbiomics Research CenterSun Yat‐sen UniversityGuangzhouGuangdong510006China
| | - Pubo Chen
- Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai)School of Environmental Science and EngineeringEnvironmental Microbiomics Research CenterSun Yat‐sen UniversityGuangzhouGuangdong510006China
| | - Qingyun Yan
- Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai)School of Environmental Science and EngineeringEnvironmental Microbiomics Research CenterSun Yat‐sen UniversityGuangzhouGuangdong510006China
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Braga JK, de Melo Júnior OM, Rodriguez RP, Sancinetti GP. Sulfate and metals removal from acid mine drainage in a horizontal anaerobic immobilized biomass (HAIB) reactor. JOURNAL OF ENVIRONMENTAL SCIENCE AND HEALTH. PART A, TOXIC/HAZARDOUS SUBSTANCES & ENVIRONMENTAL ENGINEERING 2020; 55:1436-1449. [PMID: 32812506 DOI: 10.1080/10934529.2020.1806632] [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: 10/28/2019] [Revised: 07/27/2020] [Accepted: 07/28/2020] [Indexed: 06/11/2023]
Abstract
The acid mine drainage (AMD) can causes negative impacts to the environment. Physico-chemical methods to treat AMD can have high operational costs. Through passive biological methods, such as anaerobic reactors, sulfate reduction, and recovery of metals are promoted. This study evaluated the performance of a horizontal anaerobic immobilized biomass (HAIB) reactor for the treatment of synthetic AMD using polyurethane foam as support material, and anaerobic sludge as inoculum. Ethanol was used as an electron donor for sulfate reduction, resulting in an influent chemical oxygen demand (COD) in the range of 500-1,500 mg/L and COD/sulfate ratio at 1. A gradual increase of sulfate and COD concentration was applied that resulted in COD removal efficiencies higher than 78%, and sulfate removal efficiencies of 80%. Higher sulfate and COD concentrations associated with higher hydraulic retention times (36 h) proved to be a better strategy for sulfate removal. The HAIB reactor was able to accommodate an increase in the SLR up to 2.25 g SO42-/L d-1 which achieved the greatest performance on the entire process. Moreover, the reactor proved a suitable alternative for reaching high levels of metal removal (86.95 for Zn, 98.79% for Fe, and 99.59% for Cu).
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Affiliation(s)
- Juliana Kawanishi Braga
- Laboratório de Biotecnologia Anaeróbia, Instituto de Ciência e Tecnologia, Universidade Federal de Alfenas (UNIFAL-MG), Poços de Caldas, Minas Gerais, Brazil
| | - Omar Mendes de Melo Júnior
- Laboratório de Biotecnologia Anaeróbia, Instituto de Ciência e Tecnologia, Universidade Federal de Alfenas (UNIFAL-MG), Poços de Caldas, Minas Gerais, Brazil
| | - Renata Piacentini Rodriguez
- Laboratório de Biotecnologia Anaeróbia, Instituto de Ciência e Tecnologia, Universidade Federal de Alfenas (UNIFAL-MG), Poços de Caldas, Minas Gerais, Brazil
| | - Giselle Patricia Sancinetti
- Laboratório de Biotecnologia Anaeróbia, Instituto de Ciência e Tecnologia, Universidade Federal de Alfenas (UNIFAL-MG), Poços de Caldas, Minas Gerais, Brazil
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Yang D, Jia R, Abd Rahman HB, Gu T. Preliminary Investigation of Utilization of a Cellulose-Based Polymer in Enhanced Oil Recovery by Oilfield Anaerobic Microbes and its Impact on Carbon Steel Corrosion. CORROSION 2020; 76:766-772. [DOI: 10.5006/3476] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/02/2023]
Abstract
Water injection increases reservoir pressure in enhanced oil recovery (EOR). Among other oilfield performance chemicals, an EOR polymer is added to the injection water to provide the viscosity necessary for effective displacement of viscous crude oil from the reservoir formation. However, these organic macromolecules may be degraded by microbes downhole, causing undesirable viscosity loss. The organic carbon utilization by the microbes promotes microbial metabolism, thus potentially exacerbating microbiologically influenced corrosion (MIC). In this preliminary laboratory investigation, 3,000 ppm (w/w) carboxymethyl cellulose sodium (CMCS), a commonly used EOR polymer, was found to be utilized by an oilfield biofilm consortium. This oilfield biofilm consortium consisted of bacteria (including that can degrade large organic molecules), sulfate-reducing bacteria (SRB), and other microorganisms. A 30-day incubation in 125 mL anaerobic vials was conducted with an artificial seawater medium without yeast extract and lactate supplements at 37°C. The polymer biodegradation led to 16% viscosity loss in the broth and a 30× higher SRB sessile cell count. Slightly increased MIC weight loss and pitting corrosion were observed on C1018 carbon steel coupons. Thus, the use of CMCS in EOR should take into the consideration of microbial degradation and its impact on MIC.
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Affiliation(s)
- Dongqing Yang
- Department of Chemical and Biomolecular Engineering, Institute for Corrosion and Multiphase Technology, Ohio University, Athens, Ohio 45701
| | - Ru Jia
- Department of Chemical and Biomolecular Engineering, Institute for Corrosion and Multiphase Technology, Ohio University, Athens, Ohio 45701
| | - Hasrizal Bin Abd Rahman
- Hydrocarbon Recovery Technology, Group Research & Technology, Project Delivery & Technology, Petronas, Kuala Lumpur, 50088, Malaysia
| | - Tingyue Gu
- Department of Chemical and Biomolecular Engineering, Institute for Corrosion and Multiphase Technology, Ohio University, Athens, Ohio 45701
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28
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Ntagia E, Chatzigiannidou I, Williamson AJ, Arends JBA, Rabaey K. Homoacetogenesis and microbial community composition are shaped by pH and total sulfide concentration. Microb Biotechnol 2020; 13:1026-1038. [PMID: 32126162 PMCID: PMC7264883 DOI: 10.1111/1751-7915.13546] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2019] [Revised: 02/08/2020] [Accepted: 02/10/2020] [Indexed: 12/27/2022] Open
Abstract
Biological CO2 sequestration through acetogenesis with H2 as electron donor is a promising technology to reduce greenhouse gas emissions. Today, a major issue is the presence of impurities such as hydrogen sulfide (H2 S) in CO2 containing gases, as they are known to inhibit acetogenesis in CO2 -based fermentations. However, exact values of toxicity and inhibition are not well-defined. To tackle this uncertainty, a series of toxicity experiments were conducted, with a mixed homoacetogenic culture, total dissolved sulfide concentrations ([TDS]) varied between 0 and 5 mM and pH between 5 and 7. The extent of inhibition was evaluated based on acetate production rates and microbial growth. Maximum acetate production rates of 0.12, 0.09 and 0.04 mM h-1 were achieved in the controls without sulfide at pH 7, pH 6 and pH 5. The half-maximal inhibitory concentration (IC50 qAc ) was 0.86, 1.16 and 1.36 mM [TDS] for pH 7, pH 6 and pH 5. At [TDS] above 3.33 mM, acetate production and microbial growth were completely inhibited at all pHs. 16S rRNA gene amplicon sequencing revealed major community composition transitions that could be attributed to both pH and [TDS]. Based on the observed toxicity levels, treatment approaches for incoming industrial CO2 streams can be determined.
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Affiliation(s)
- Eleftheria Ntagia
- Center for Microbial Ecology and Technology (CMET)Ghent UniversityCoupure Links 653Ghent9000Belgium
| | - Ioanna Chatzigiannidou
- Center for Microbial Ecology and Technology (CMET)Ghent UniversityCoupure Links 653Ghent9000Belgium
| | - Adam J. Williamson
- Center for Microbial Ecology and Technology (CMET)Ghent UniversityCoupure Links 653Ghent9000Belgium
| | - Jan B. A. Arends
- Center for Microbial Ecology and Technology (CMET)Ghent UniversityCoupure Links 653Ghent9000Belgium
| | - Korneel Rabaey
- Center for Microbial Ecology and Technology (CMET)Ghent UniversityCoupure Links 653Ghent9000Belgium
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29
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Transcriptome Analysis of the Acid Stress Response of Desulfovibrio vulgaris ATCC 7757. Curr Microbiol 2020; 77:2702-2712. [DOI: 10.1007/s00284-020-02051-x] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2019] [Accepted: 05/23/2020] [Indexed: 01/23/2023]
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30
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Xu YN, Chen Y. Advances in heavy metal removal by sulfate-reducing bacteria. WATER SCIENCE AND TECHNOLOGY : A JOURNAL OF THE INTERNATIONAL ASSOCIATION ON WATER POLLUTION RESEARCH 2020; 81:1797-1827. [PMID: 32666937 DOI: 10.2166/wst.2020.227] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Industrial development has led to generation of large volumes of wastewater containing heavy metals, which need to be removed before the wastewater is released into the environment. Chemical and electrochemical methods are traditionally applied to treat this type of wastewater. These conventional methods have several shortcomings, such as secondary pollution and cost. Bioprocesses are gradually gaining popularity because of their high selectivities, low costs, and reduced environmental pollution. Removal of heavy metals by sulfate-reducing bacteria (SRB) is an economical and effective alternative to conventional methods. The limitations of and advances in SRB activity have not been comprehensively reviewed. In this paper, recent advances from laboratory studies in heavy metal removal by SRB were reported. Firstly, the mechanism of heavy metal removal by SRB is introduced. Then, the factors affecting microbial activity and metal removal efficiency are elucidated and discussed in detail. In addition, recent advances in selection of an electron donor, enhancement of SRB activity, and improvement of SRB tolerance to heavy metals are reviewed. Furthermore, key points for future studies of the SRB process are proposed.
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Affiliation(s)
- Ya-Nan Xu
- State Key Laboratory of Pollution Control and Resource Reuse, School of Environmental Science and Engineering, Tongji University, 1239 Siping Road, Shanghai 200092, China E-mail:
| | - Yinguang Chen
- State Key Laboratory of Pollution Control and Resource Reuse, School of Environmental Science and Engineering, Tongji University, 1239 Siping Road, Shanghai 200092, China E-mail: ; Shanghai Institute of Pollution Control and Ecological Security, Shanghai 200092, China
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31
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Сhaіka OM, Peretyatko TB. Effect of abiotic factors on sulfidogenic activity of bacteria Desulfuromonas sp. REGULATORY MECHANISMS IN BIOSYSTEMS 2020. [DOI: 10.15421/022025] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Abstract
Sulfur-reducing bacteria are promising agents for the development of new methods of wastewater treatment with the removal of ions of heavy metals and organic compounds. Study of the effect of various environmental factors on the growth and sulfidogenic activity of sulfur-reducing bacteria allows one to investigate the adaptability of these microorganisms to stress factors. The paper deals with the effect of рН, different concentrations of elemental sulfur, hydrogen sulfide and presence of various electron acceptors on the growth and sulfidogenic activity of bacteria Desulfuromonas sp. YSDS-3. The calculation of C/S ratio for sulfur-reducing bacteria Desulfuromonas sp. YSDS-3 was made, with the comparison with similar parameters of sulfate-reducing bacteria. In the medium with elemental sulfur, concentration of hydrogen sulfide increased with the concentration of elemental sulfur. Bacteria Desulfuromonas sp. YSDS-3 accumulated their biomass in the most effective way at the concentration of elemental sulfur of 10–100 mM. In the medium with polysulfide form of sulfur at the neutral pH, bacteria produced hydrogen sulfide and accumulated biomass the best. Hydrogen sulfide at the concentration of 3 mM did not inhibit the bacterial growth, but further increase in the hydrogen sulfide concentration inhibited the growth of bacteria. The bacteria did not grow at the hydrogen sulfide concentration of 25 mM and above. As the concentration of elemental sulfur and cell density increases, sulfidogenic activity of the bacteria grows. Presence of two electron acceptors (S and K2Cr2O7, S and MnO2, S and Fe (III)) did not affect the accumulation of biomass of the bacteria Desulfuromonas sp. YSDS-3. However, under such conditions the bacteria accumulated 1.5–2.5 times less hydrogen sulfide than in the test medium. After 12–24 h of cultivation, different concentrations of elemental sulfur had a significant effect on the sulfidogenic activity. However, during 3–16 days of cultivation, the percentage of effect of elemental sulfur concentration decreased to 31%, while the percentage of effect of cell density increased threefold. Presence in the medium of the electron acceptors (Cr (VI), MnO2, Fe (III)) alternative to elemental sulfur led to a significant decrease in the content of hydrogen sulfide produced by sulfur-reducing bacteria.
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32
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Marzocchi U, Palma E, Rossetti S, Aulenta F, Scoma A. Parallel artificial and biological electric circuits power petroleum decontamination: The case of snorkel and cable bacteria. WATER RESEARCH 2020; 173:115520. [PMID: 32018171 DOI: 10.1016/j.watres.2020.115520] [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: 09/23/2019] [Revised: 12/13/2019] [Accepted: 01/17/2020] [Indexed: 06/10/2023]
Abstract
Degradation of petroleum hydrocarbons (HC) in sediments is often limited by the availability of electron acceptors. By allowing long-distance electron transport (LDET) between anoxic sediments and oxic overlying water, bioelectrochemical snorkels may stimulate the regeneration of sulphate in the anoxic sediment thereby accelerating petroleum HC degradation. Cable bacteria can also mediate LDET between anoxic and oxic sediment layers and thus theoretically stimulate petroleum HC degradation. Here, we quantitatively assessed the impact of cable bacteria and snorkels on the degradation of alkanes in marine sediment from Aarhus Bay (Denmark). After seven weeks, cable bacteria and snorkels accelerated alkanes degradation by +24 and +25%, respectively, compared to control sediment with no cable bacteria nor snorkel. The combination of snorkels and cable bacteria further enhanced alkanes degradation (+46%). Higher degradation rates were sustained by LDET-induced sulphide removal rather than, as initially hypothesized, sulphate regeneration. Cable bacteria are thus overlooked players in the self-healing capacity of crude-oil contaminated sediments, and may inspire novel remediation treatments upon hydrocarbon spillage.
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Affiliation(s)
- Ugo Marzocchi
- Center for Electromicrobiology, Section for Microbiology, Department of Bioscience, Aarhus University, Aarhus, Denmark; Integrative Marine Ecology Department, Stazione Zoologica Anton Dohrn, National Institute of Marine Biology, Ecology and Biotechnology, Napoli, Italy.
| | - Enza Palma
- Water Research Institute (IRSA), National Research Council (CNR), Monterotondo, Italy
| | - Simona Rossetti
- Water Research Institute (IRSA), National Research Council (CNR), Monterotondo, Italy
| | - Federico Aulenta
- Water Research Institute (IRSA), National Research Council (CNR), Monterotondo, Italy
| | - Alberto Scoma
- Section of Microbiology, Department of Bioscience, Aarhus University, Aarhus, Denmark; Biological and Chemical Engineering (BCE), Department of Engineering, Aarhus University, Aarhus, Denmark
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Mu T, Yang M, Xing J. Deep and high-efficiency removal of sulfate through a coupling system with sulfate-reducing and sulfur-oxidizing capacity under haloalkaliphilic condition. Bioprocess Biosyst Eng 2020; 43:1009-1015. [PMID: 31993799 DOI: 10.1007/s00449-020-02298-5] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2019] [Accepted: 01/16/2020] [Indexed: 11/27/2022]
Abstract
Sulfide from anaerobic treatment of high-sulfate wastewater would always have some adverse effects on downstream processes. In this study, a coupling anaerobic/aerobic system was developed and operated under haloalkaliphilic condition to realize deep and high-efficiency removal of sulfate without production of sulfide. A haloalkaliphilic sulfur-oxidizing strain, Thioalkalivibrio versutus SOB306, was responsible for oxidation of sulfide. The anaerobic part was first operated at optimum condition based on a previous study. Then, its effluent with an average sulfide concentration of 674 ± 33 mg·l-1 was further directly treated by a set of 1 l biofilter with SOB306 strain under aerobic condition. Finally, 100% removal rate of sulfide was achieved at aeration rate of 0.75 l·l-1·min-1, ORP of - 392 mV and HRT of 4 h. The average yield of elemental sulfur reached 79.1 ± 1.3% in the filter, and the CROS achieved a conversion rate of sulfate to sulfur beyond 54%. This study for the first time revealed the characteristics and performance of the haloalkaliphilic CROS in deep treatment of high-sulfate wastewater, which paved the way for the development and application of this method in the real world.
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Affiliation(s)
- Tingzhen Mu
- Key Laboratory of Green Process and Engineering, State Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing, 100190, China.
| | - Maohua Yang
- Key Laboratory of Green Process and Engineering, State Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing, 100190, China
| | - Jianmin Xing
- Key Laboratory of Green Process and Engineering, State Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing, 100190, China
- College of Chemical Engineering, University of Chinese Academy of Sciences, 19 A Yuquan Road, Beijing, 100049, China
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34
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Florentino AP, Costa RB, Hu Y, O'Flaherty V, Lens PNL. Long Chain Fatty Acid Degradation Coupled to Biological Sulfidogenesis: A Prospect for Enhanced Metal Recovery. Front Bioeng Biotechnol 2020. [PMID: 33195115 DOI: 10.3389/fbioe.2020] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/28/2023] Open
Abstract
This research assessed the microbiological suitability of oleate degradation coupled to sulfidogenesis by enriching communities from anaerobic sludge treating dairy products with S0, SO 3 2 - , SO 4 2 - , and S2 O 3 2 - as electron acceptors. The limiting factor hampering highly efficient oleate degradation was investigated in batch reactors. The best sulfidogenic performance coupled to specialization of the enriched bacterial community was obtained for S0- and S2 O 3 2 - -reducing enrichments, with 15.6 (± 0.2) and 9.0 (± 0.0) mM of sulfide production, respectively. Microbial community analyses revealed predominance of Enterobacteraceae (50.6 ± 5.7%), Sulfurospirillum (23.1 ± 0.1%), Bacteroides (7.5 ± 1.5%) and Seleniivibrio (6.9 ± 1.1%) in S0-reducing cultures. In S2 O 3 2 - -reducing enrichments, the genus Desulfurella predominated (49.2 ± 1.2%), followed by the Enterobacterales order (20.9 ± 2.3%). S0-reducing cultures were not affected by oleate concentrations up to 5 mM, while S2 O 3 2 - -reducing cultures could degrade oleate in concentrations up to 10 mM, with no significant impact on sulfidogenesis. In sequencing batch reactors operated with sulfide stripping, the S0-reducing enrichment produced 145.8 mM sulfide, precipitating Zn as ZnS in a separate tank. The S2 O 3 2 - fed bioreactor only produced 23.4 mM of sulfide precipitated as ZnS. The lower sulfide production likely happened due to sulfite toxicity, an intermediate of thiosulfate reduction. Therefore, elemental sulfur reduction represents an excellent alternative to the currently adopted approaches for LCFA degradation. To the best of our knowledge, this is the first report of oleate degradation with the flux of electrons totally diverted toward sulfide production for metal precipitation, showing great efficiency of LCFA degradation coupled to high levels of metals precipitated as metal sulfide.
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Affiliation(s)
- Anna Patrícya Florentino
- Department of Microbiology, School of Natural Sciences and Ryan Institute, National University of Ireland Galway, Galway, Ireland
| | - Rachel Biancalana Costa
- Department of Biochemistry and Organic Chemistry, Institute of Chemistry, São Paulo State University, Araraquara, Brazil
| | - Yuansheng Hu
- Department of Civil Engineering, School of Engineering, College of Science and Engineering, National University of Ireland Galway, Galway, Ireland
| | - Vincent O'Flaherty
- Department of Microbiology, School of Natural Sciences and Ryan Institute, National University of Ireland Galway, Galway, Ireland
| | - Piet N L Lens
- Department of Microbiology, School of Natural Sciences and Ryan Institute, National University of Ireland Galway, Galway, Ireland
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Kushkevych I, Kotrsová V, Dordević D, Buňková L, Vítězová M, Amedei A. Hydrogen Sulfide Effects on the Survival of Lactobacilli with Emphasis on the Development of Inflammatory Bowel Diseases. Biomolecules 2019; 9:E752. [PMID: 31756903 PMCID: PMC6995546 DOI: 10.3390/biom9120752] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2019] [Revised: 11/12/2019] [Accepted: 11/15/2019] [Indexed: 02/07/2023] Open
Abstract
The gut microbiota is a complex component of humans that depends on diet, host genome, and lifestyle. The background: The study purpose is to find relations between nutrition, intestinal lactic acid bacteria (LAB) from various environments (human, animal intestine, and yogurt) and sulfate-reducing microbial communities in the large intestine; to compare kinetic growth parameters of LAB; and to determine their sensitivity to different concentration of hydrogen sulfide produced by intestinal sulfate-reducing bacteria. METHODS Microbiological (isolation and identification), biochemical (electrophoresis), molecular biology methods (DNA isolation and PCR analysis), and statistical processing (average and standard error calculations) of the results were used. THE RESULTS The toxicity of hydrogen sulfide produced by sulfate-reducing bacteria, the survival of lactic acid bacteria, and minimal inhibitory concentrations (MIC) were determined. The measured hydrogen sulfide sensitivity values were the same for L. paracasei and L. reuteri (MIC > 1.1 mM). In addition, L. plantarum and L.fermentum showed also a similar sensitivity (MIC > 0.45 mM) but significantly (p < 0.05) lower than L.reuteri and L. paracasei (1.1 > 0.45 mM). L. paracasei and L. reuteri are more sensitive to hydrogen sulfide than L. fermentum and L. plantarum. L. pentosus was sensitive to the extremely low concentration of H2S (MIC > 0.15 mM). CONCLUSIONS The Lactobacillus species were significantly sensitive to hydrogen sulfide, which is a final metabolite of intestinal sulfate-reducing bacteria. The results are definitely helpful for a better understanding of complicated interaction among intestinal microbiota and nutrition.
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Affiliation(s)
- Ivan Kushkevych
- Department of Experimental Biology, Faculty of Science, Masaryk University, Kamenice 753/5, 62500 Brno, Czech Republic; (V.K.); (M.V.)
| | - Věra Kotrsová
- Department of Experimental Biology, Faculty of Science, Masaryk University, Kamenice 753/5, 62500 Brno, Czech Republic; (V.K.); (M.V.)
| | - Dani Dordević
- Department of Plant Origin Foodstuffs Hygiene and Technology, Faculty of Veterinary Hygiene and Ecology, University of Veterinary and Pharmaceutical Sciences, 61242 Brno, Czech Republic;
| | - Leona Buňková
- The Department of Environmental Protection Engineering, Faculty of Technology, Tomas Bata University in Zlín, 76001 Zlín, Czech Republic;
| | - Monika Vítězová
- Department of Experimental Biology, Faculty of Science, Masaryk University, Kamenice 753/5, 62500 Brno, Czech Republic; (V.K.); (M.V.)
| | - Amedeo Amedei
- Department of Experimental and Clinical Medicine, University of Florence, 50134 Florence, Italy;
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Gao K, Jiang M, Guo C, Zeng Y, Fan C, Zhang J, Reinfelder JR, Huang W, Lu G, Dang Z. Reductive dissolution of jarosite by a sulfate reducing bacterial community: Secondary mineralization and microflora development. THE SCIENCE OF THE TOTAL ENVIRONMENT 2019; 690:1100-1109. [PMID: 31470473 DOI: 10.1016/j.scitotenv.2019.06.483] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/15/2019] [Revised: 06/13/2019] [Accepted: 06/27/2019] [Indexed: 06/10/2023]
Abstract
Jarosite is an iron-hydroxysulfate mineral commonly found in acid mine drainage (AMD). Given its strong adsorption capacity and its ability to co-precipitation with heavy metals, jarosite is considered a potent scavenger of contaminants in AMD-impacted environments. Sulfate-reducing bacteria (SRB) play an important role in the reductive dissolution of jarosite; however, the mechanism involved has yet to be elucidated. In this study, an indigenous SRB community enriched from the Dabaoshan mine area (Guangdong, China) was employed to explore the mechanism of the microbial reduction of jarosite. Different cultures, with or without dissolved sulfate and the physical separation of jarosite from bacteria by dialysis bags, were examined. Results indicate that the reduction of jarosite by SRB occurred via an indirect mechanism. In systems with dissolved sulfate, lactate was incompletely oxidized to acetate coupled with the reduction of SO42- to S2-, which subsequently reduced the Fe3+ in jarosite, forming secondary minerals including vivianite, mackinawite and pyrite. In systems without dissolved sulfate, jarosite dissolution occurred prior to reduction, and similar secondary minerals formed as well. Extracellular polymeric substances secreted by SRB appeared to facilitate the release of sulfate from jarosite. Structural sulfate in the solid phase of jarosite may not be available for SRB respiration. Although direct contact between SRB and jarosite is not necessary for mineral reduction, wrapping jarosite into dialysis bags suppressed the reduction to a certain extent. Microbial community composition differed in direct contact treatments and physical separation treatments. Physical separation of the SRB community from jarosite mineral supported the growth of Citrobacter, while Desulfosporosinus dominated in direct contact treatments.
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Affiliation(s)
- Kun Gao
- School of Environment and Energy, South China University of Technology, Guangzhou 510006, PR China; The Key Lab of Pollution Control and Ecosystem Restoration in Industry Clusters, Ministry of Education, South China University of Technology, Guangzhou 510006, PR China
| | - Mengge Jiang
- School of Environment and Energy, South China University of Technology, Guangzhou 510006, PR China; The Key Lab of Pollution Control and Ecosystem Restoration in Industry Clusters, Ministry of Education, South China University of Technology, Guangzhou 510006, PR China
| | - Chuling Guo
- School of Environment and Energy, South China University of Technology, Guangzhou 510006, PR China; The Key Lab of Pollution Control and Ecosystem Restoration in Industry Clusters, Ministry of Education, South China University of Technology, Guangzhou 510006, PR China.
| | - Yufei Zeng
- School of Environment and Energy, South China University of Technology, Guangzhou 510006, PR China
| | - Cong Fan
- School of Environment and Energy, South China University of Technology, Guangzhou 510006, PR China; The Key Lab of Pollution Control and Ecosystem Restoration in Industry Clusters, Ministry of Education, South China University of Technology, Guangzhou 510006, PR China
| | - Junhui Zhang
- School of Environment and Energy, South China University of Technology, Guangzhou 510006, PR China; The Key Lab of Pollution Control and Ecosystem Restoration in Industry Clusters, Ministry of Education, South China University of Technology, Guangzhou 510006, PR China
| | - John R Reinfelder
- Department of Environmental Sciences, Rutgers University, New Brunswick, NJ 08901, USA
| | - Weilin Huang
- Department of Environmental Sciences, Rutgers University, New Brunswick, NJ 08901, USA
| | - Guining Lu
- School of Environment and Energy, South China University of Technology, Guangzhou 510006, PR China; The Key Lab of Pollution Control and Ecosystem Restoration in Industry Clusters, Ministry of Education, South China University of Technology, Guangzhou 510006, PR China
| | - Zhi Dang
- School of Environment and Energy, South China University of Technology, Guangzhou 510006, PR China; The Key Lab of Pollution Control and Ecosystem Restoration in Industry Clusters, Ministry of Education, South China University of Technology, Guangzhou 510006, PR China.
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Čanković M, Žučko J, Radić ID, Janeković I, Petrić I, Ciglenečki I, Collins G. Microbial diversity and long-term geochemical trends in the euxinic zone of a marine, meromictic lake. Syst Appl Microbiol 2019; 42:126016. [PMID: 31635887 DOI: 10.1016/j.syapm.2019.126016] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2019] [Revised: 08/30/2019] [Accepted: 09/07/2019] [Indexed: 01/04/2023]
Abstract
Hypoxic and anoxic niches of meromictic lakes are important sites for studying the microbial ecology of conditions resembling ancient Earth. The expansion and increasing global distribution of such environments also means that information about them serves to understand future phenomena. In this study, a long-term chemical dataset (1996-2015) was explored together with seasonal (in 2015) information on the diversity and abundance of bacterial and archaeal communities residing in the chemocline, monimolimnion and surface sediment of the marine meromictic Rogoznica Lake. The results of quantitative PCR assays, and high-throughput sequencing, targeting 16S rRNA genes and transcripts, revealed a clear vertical structure of the microbial community with Gammaproteobacteria (Halochromatium) and cyanobacteria (Synechococcus spp.) dominating the chemocline, Deltaproteobacteria and Bacteroidetes dominating the monimolimnion, and significantly more abundant archaeal populations in the surface sediment, most of which affiliated to Nanoarchaeota. Seasonal changes in the community structure and abundance were not pronounced. Diversity in Rogoznica Lake was found to be high, presumably as a consequence of stable environmental conditions accompanied by high dissolved carbon and nutrient concentrations. Long-term data indicated that Rogoznica Lake exhibited climate changes that could alter its physico-chemical features and, consequently, induce structural and physiological changes within its microbial community.
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Affiliation(s)
- Milan Čanković
- Division for Marine and Environmental Research, Ruđer Bošković Institute, Bijenička cesta 54, 10 000 Zagreb, Croatia.
| | - Jurica Žučko
- Department of Biochemical Engineering, Faculty of Food Technology and Biotechnology, University of Zagreb, Pierottijeva 6, 10 000 Zagreb, Croatia
| | - Iris Dupčić Radić
- Institute for Marine and Coastal Research, University of Dubrovnik, Ul. kneza Damjana Jude 12, 20 000, Dubrovnik, Croatia
| | - Ivica Janeković
- Division for Marine and Environmental Research, Ruđer Bošković Institute, Bijenička cesta 54, 10 000 Zagreb, Croatia
| | - Ines Petrić
- Division for Marine and Environmental Research, Ruđer Bošković Institute, Bijenička cesta 54, 10 000 Zagreb, Croatia
| | - Irena Ciglenečki
- Division for Marine and Environmental Research, Ruđer Bošković Institute, Bijenička cesta 54, 10 000 Zagreb, Croatia
| | - Gavin Collins
- Microbial Communities Laboratory, Microbiology, School of Natural Sciences, National University of Ireland Galway, University Road, Galway, H91 TK33, Ireland
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Fernández-Palacios E, Lafuente J, Mora M, Gabriel D. Exploring the performance limits of a sulfidogenic UASB during the long-term use of crude glycerol as electron donor. THE SCIENCE OF THE TOTAL ENVIRONMENT 2019; 688:1184-1192. [PMID: 31726549 DOI: 10.1016/j.scitotenv.2019.06.371] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/06/2019] [Revised: 06/22/2019] [Accepted: 06/22/2019] [Indexed: 06/10/2023]
Abstract
SOx contained in flue gases and S-rich liquid effluents can be valorized to recover elemental sulfur in a two-stage bioscrubbing process. The reduction of sulfate to sulfide is the most crucial stage to be optimized. In this study, the long-term performance of an up-flow anaerobic sludge blanket (UASB) reactor using crude glycerol as electron donor was assessed. The UASB was operated for 400 days with different sulfate and organic loading rates (SLR and OLR, respectively) and a COD/S-SO42- ratio ranging from 3.8 g O2 g-1 S to 5.4 g O2 g-1 S. After inoculation with methanogenic, granular biomass, the competition between sulfate-reducing and methanogenic microorganisms determined to what extent dissolved sulfide and methane were produced. After the complete washout of methanogens, which was revealed by next-generation sequencing analysis, the highest S-EC was reached in the system. The highest average sulfate elimination capacity (S-EC = 4.3 kg S m-3d-1) was obtained at a COD/S-SO42- ratio of 5.4 g O2 g-1 S and an OLR of 24.4 kg O2 m-3d-1 with a sulfate removal efficiency of 94%. The conversion of influent COD to methane decreased from 12% to 2.5% as the SLR increased while a large fraction of acetate (35% of the initial COD) was accumulated. Our data indicate that crude glycerol can promote sulfidogenesis. However, the disappearance of methanogens in the long-term due to the out competition by sulfate reducing bacteria, lead to such large accumulation of acetate.
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Affiliation(s)
- E Fernández-Palacios
- GENOCOV Research Group, Department of Chemical, Biological and Environmental Engineering, School of Engineering, Universitat Autònoma de Barcelona, 08193 Bellaterra, Spain
| | - J Lafuente
- GENOCOV Research Group, Department of Chemical, Biological and Environmental Engineering, School of Engineering, Universitat Autònoma de Barcelona, 08193 Bellaterra, Spain
| | - M Mora
- GENOCOV Research Group, Department of Chemical, Biological and Environmental Engineering, School of Engineering, Universitat Autònoma de Barcelona, 08193 Bellaterra, Spain
| | - D Gabriel
- GENOCOV Research Group, Department of Chemical, Biological and Environmental Engineering, School of Engineering, Universitat Autònoma de Barcelona, 08193 Bellaterra, Spain.
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Qian J, Zhang M, Jing R, Bai L, Zhou B, Zhao M, Pei X, Wei L, Chen GH. Thiosulfate as the electron acceptor in Sulfur Bioconversion-Associated Process (SBAP) for sewage treatment. WATER RESEARCH 2019; 163:114850. [PMID: 31326695 DOI: 10.1016/j.watres.2019.07.017] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/24/2019] [Revised: 06/21/2019] [Accepted: 07/08/2019] [Indexed: 06/10/2023]
Abstract
The sulfur bioconversion-associated processes (SBAP) for sewage treatment have been extensively reported so far. In this study, biological thiosulfate reduction (BTR)-driven biotechnology for high rate sulfidogenesis and organic removal was explored to further close the gap of our knowledge on the sulfur cycle-based sewage treatment bioprocess. With thiosulfate as the electron acceptor, the sulfidogenic rate in the UASB rector is 105.6 mg S/L/h with the sludge yield of only 0.044 g MLVSS/g CODsubstrate. Thus providing sufficient electron donors or chemical sources (i.e. HS-) for the downstream autotrophic denitrification or for the cost-effective heavy metal precipitation. Thiosulfate disproportionation was not observed in BTR reactor. High-throughput pyrosequencing analysis reveals that Desulfobulbus and Desulfomicrobium are the predominant thiosulfate-reducing genera and the thiosulfate disproportionation-bacteria were at much lower genus level. The specific thiosulfate-reducer i.e. Dethiosulfatibacter which could utilize thiosulfate but not sulfate as the electron acceptor was also identified. Batch testing results indicate that the sulfidogenic activity on thiosulfate was 1.5 times that on sulfate. The optimal pH for BTR activity was between 7.0 and 8.0, a typical pH range of the municipal sewage. Thiosulfate can be efficiently recovered in the sulfide-driven denitritation reactor enriched with abundant sulfide-oxidizing genera (mainly including Thiobacillus and Sulfurimonas). Finally, a conceptual model of the sulfur cycle based on the biotransformation between thiosulfate and sulfide was established, offering new insights into the sustainable SBAP with sludge minimization.
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Affiliation(s)
- Jin Qian
- Research & Development Institute in Shenzhen & School of Natural and Applied Sciences, Northwestern Polytechnical University, China; State Key Laboratory of Geohazard Prevention and Geoenvironment Protection, Chengdu University of Technology, Chengdu, China.
| | - Mingkuan Zhang
- Research & Development Institute in Shenzhen & School of Natural and Applied Sciences, Northwestern Polytechnical University, China
| | - Ran Jing
- Department of Civil and Environmental Engineering, University of Maryland at College Park, 0147L Glenn L. Martin Hall, College Park, MD, 20742, USA
| | - Linqin Bai
- Research & Development Institute in Shenzhen & School of Natural and Applied Sciences, Northwestern Polytechnical University, China
| | - Bo Zhou
- Research & Development Institute in Shenzhen & School of Natural and Applied Sciences, Northwestern Polytechnical University, China
| | - Mingjun Zhao
- Research & Development Institute in Shenzhen & School of Natural and Applied Sciences, Northwestern Polytechnical University, China
| | - Xiangjun Pei
- State Key Laboratory of Geohazard Prevention and Geoenvironment Protection, Chengdu University of Technology, Chengdu, China.
| | - Li Wei
- Department of Civil & Environmental Engineering, Chinese National Engineering Research Center for Control & Treatment of Heavy Metal Pollution (Hong Kong Branch) and Water Technology Center, The Hong Kong University of Science and Technology, Clear Water Bay, Hong Kong, China
| | - Guang-Hao Chen
- Department of Civil & Environmental Engineering, Chinese National Engineering Research Center for Control & Treatment of Heavy Metal Pollution (Hong Kong Branch) and Water Technology Center, The Hong Kong University of Science and Technology, Clear Water Bay, Hong Kong, China
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40
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Nogueira EW, Licona FM, Godoi LAG, Brucha G, Damianovic MHRZ. Biological treatment removal of rare earth elements and yttrium (REY) and metals from actual acid mine drainage. WATER SCIENCE AND TECHNOLOGY : A JOURNAL OF THE INTERNATIONAL ASSOCIATION ON WATER POLLUTION RESEARCH 2019; 80:1485-1493. [PMID: 31961811 DOI: 10.2166/wst.2019.398] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Actual acid mine drainage (AMD) containing a high concentration of sulfate (∼1,000 mg·L-1), dissolved metals, uranium, rare earth elements and yttrium (REY) was treated using a down-flow fixed-structured bed biological reactor (DFSBR). The reactor was operated in a continuous flow mode for 175 days and the temperature was maintained at 30 °C. The synthetic AMD was gradually replaced by the actual AMD in 20, 50 and 75% of the total medium volume. Sugarcane vinasse was used as the electron donor and the influent pH of the reactor was decreased from 6.9 to 4.6 until the system collapsed. REY elements and transition metals were removed from the actual AMD and precipitated in the down-flow fixed-structured bed reactor. Sulfate reduction achieved 67 ± 22% in Phase II and chemical oxygen demand (COD) removal was above 56% in Phases I and II. Removal of La, Ce, Pr, Nd, Sm and Y was higher than 70% in both Phases II and III while Fe, Al, Si and Mn were removed with efficiencies of 79, 67, 48 and 25%, respectively. The results highlighted the potential use of DFSBR in the treatment of AMD, providing possibilities for simultaneous sulfate reduction and metal and REY recovery in a single unit.
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Affiliation(s)
- E W Nogueira
- Biological Processes Laboratory (LPB), São Carlos School of Engineering (EESC), University of São Paulo (USP), Av. João Dagnone, 1100, Santa Angelina, São Carlos, São Paulo 13563-120, Brazil E-mail:
| | - F M Licona
- Universidade Federal de Alfenas, Rodovia José Aurélio Vilela, 11999 (BR 267 Km 533) Cidade Universitária, Poços de Caldas, Minas Gerais, Brazil
| | - L A G Godoi
- Biological Processes Laboratory (LPB), São Carlos School of Engineering (EESC), University of São Paulo (USP), Av. João Dagnone, 1100, Santa Angelina, São Carlos, São Paulo 13563-120, Brazil E-mail:
| | - G Brucha
- Universidade Federal de Alfenas, Rodovia José Aurélio Vilela, 11999 (BR 267 Km 533) Cidade Universitária, Poços de Caldas, Minas Gerais, Brazil
| | - M H R Z Damianovic
- Biological Processes Laboratory (LPB), São Carlos School of Engineering (EESC), University of São Paulo (USP), Av. João Dagnone, 1100, Santa Angelina, São Carlos, São Paulo 13563-120, Brazil E-mail:
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Ammonia, Hydrogen Sulfide, and Greenhouse Gas Emissions from Lab-Scaled Manure Bedpacks with and without Aluminum Sulfate Additions. ENVIRONMENTS 2019. [DOI: 10.3390/environments6100108] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
The poultry industry has successfully used aluminum sulfate (alum) as a litter amendment to reduce NH3 emissions from poultry barns, but alum has not been evaluated for similar uses in cattle facilities. A study was conducted to measure ammonia (NH3), greenhouse gases (GHG), and hydrogen sulfide (H2S) emissions from lab-scaled bedded manure packs over a 42-day period. Two frequencies of application (once or weekly) and four concentrations of alum (0, 2.5, 5, and 10% by mass) were evaluated. Frequency of alum application was either the entire treatment of alum applied on Day 0 (once) or 16.6% of the total alum mass applied each week for six weeks. Ammonia emissions were reduced when 10% alum was used, but H2S emissions increased as the concentration of alum increased in the bedded packs. Nitrous oxide emissions were not affected by alum treatment. Methane emissions increased as the concentration of alum increased in the bedded packs. Carbon dioxide emissions were highest when 5% alum was applied and lowest when 0% alum was used. Results of this study indicate that 10% alum is needed to effectively reduce NH3 emissions, but H2S and methane emissions may increase when this concentration of alum is used.
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Recovery of Metals from Waste Lithium Ion Battery Leachates Using Biogenic Hydrogen Sulfide. MINERALS 2019. [DOI: 10.3390/min9090563] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Lithium ion battery (LIB) waste is increasing globally and contains an abundance of valuable metals that can be recovered for re-use. This study aimed to evaluate the recovery of metals from LIB waste leachate using hydrogen sulfide generated by a consortium of sulfate-reducing bacteria (SRB) in a lactate-fed fluidised bed reactor (FBR). The microbial community analysis showed Desulfovibrio as the most abundant genus in a dynamic and diverse bioreactor consortium. During periods of biogenic hydrogen sulfide production, the average dissolved sulfide concentration was 507 mg L−1 and the average volumetric sulfate reduction rate was 278 mg L−1 d−1. Over 99% precipitation efficiency was achieved for Al, Ni, Co, and Cu using biogenic sulfide and NaOH, accounting for 96% of the metal value contained in the LIB waste leachate. The purity indices of the precipitates were highest for Co, being above 0.7 for the precipitate at pH 10. However, the process was not selective for individual metals due to simultaneous precipitation and the complexity of the metal content of the LIB waste. Overall, the process facilitated the production of high value mixed metal precipitates, which could be purified further or used as feedstock for other processes, such as the production of steel.
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Lam BR, Barr CR, Rowe AR, Nealson KH. Differences in Applied Redox Potential on Cathodes Enrich for Diverse Electrochemically Active Microbial Isolates From a Marine Sediment. Front Microbiol 2019; 10:1979. [PMID: 31555224 PMCID: PMC6724507 DOI: 10.3389/fmicb.2019.01979] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2019] [Accepted: 08/12/2019] [Indexed: 01/21/2023] Open
Abstract
The diversity of microbially mediated redox processes that occur in marine sediments is likely underestimated, especially with respect to the metabolisms that involve solid substrate electron donors or acceptors. Though electrochemical studies that utilize poised potential electrodes as a surrogate for solid substrate or mineral interactions have shed some much needed light on these areas, these studies have traditionally been limited to one redox potential or metabolic condition. This work seeks to uncover the diversity of microbes capable of accepting cathodic electrons from a marine sediment utilizing a range of redox potentials, by coupling electrochemical enrichment approaches to microbial cultivation and isolation techniques. Five lab-scale three-electrode electrochemical systems were constructed, using electrodes that were initially incubated in marine sediment at cathodic or electron-donating voltages (five redox potentials between -400 and -750 mV versus Ag/AgCl) as energy sources for enrichment. Electron uptake was monitored in the laboratory bioreactors and linked to the reduction of supplied terminal electron acceptors (nitrate or sulfate). Enriched communities exhibited differences in community structure dependent on poised redox potential and terminal electron acceptor used. Further cultivation of microbes was conducted using media with reduced iron (Fe0, FeCl2) and sulfur (S0) compounds as electron donors, resulting in the isolation of six electrochemically active strains. The isolates belong to the genera Vallitalea of the Clostridia, Arcobacter of the Epsilonproteobacteria, Desulfovibrio of the Deltaproteobacteria, and Vibrio and Marinobacter of the Gammaproteobacteria. Electrochemical characterization of the isolates with cyclic voltammetry yielded a wide range of midpoint potentials (99.20 to -389.1 mV versus Ag/AgCl), indicating diverse metabolic pathways likely support the observed electron uptake. Our work demonstrates culturing under various electrochemical and geochemical regimes allows for enhanced cultivation of diverse cathode-oxidizing microbes from one environmental system. Understanding the mechanisms of solid substrate oxidation from environmental microbes will further elucidation of the ecological relevance of these electron transfer interactions with implications for microbe-electrode technologies.
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Affiliation(s)
- Bonita R. Lam
- Department of Biological Sciences, University of Southern California, Los Angeles, CA, United States
| | - Casey R. Barr
- Department of Earth Sciences, University of Southern California, Los Angeles, CA, United States
| | - Annette R. Rowe
- Department of Biological Sciences, University of Cincinnati, Cincinnati, OH, United States
| | - Kenneth H. Nealson
- Department of Biological Sciences, University of Southern California, Los Angeles, CA, United States
- Department of Earth Sciences, University of Southern California, Los Angeles, CA, United States
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Xie X, Müller N. Enhanced aniline degradation by Desulfatiglans anilini in a synthetic microbial community with the phototrophic purple sulfur bacterium Thiocapsa roseopersicina. Syst Appl Microbiol 2019; 42:125998. [PMID: 31345671 DOI: 10.1016/j.syapm.2019.06.003] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2019] [Revised: 06/23/2019] [Accepted: 06/26/2019] [Indexed: 11/30/2022]
Abstract
Desulfatiglans anilini is a sulfate-reducing bacterium (SRB) capable of oxidizing aniline, although growth and aniline turnover rates are slow, making it difficult to analyze the metabolism of the strain. Therefore, this study was designed to investigate the effect of sulfide on growth of D. anilini cultures, in order to improve its growth and aniline turnover rates, and study the biochemical mechanisms of sulfide inhibition. Hydrogen sulfide was found to inhibit growth of D. anilini, regardless of whether the strain was grown with aniline or phenol, and complete inhibition was observed at 20mM hydrogen sulfide. For improving the growth of D. anilini with aniline, the sulfide-consuming phototrophic bacterium Thiocapsa roseopersicina was co-cultured in a synthetic microbial community with D. anilini using a co-cultivation device that continuously removed hydrogen sulfide from the culture. The doubling time of D. anilini with aniline was 15 days in the co-cultivation device, compared to 26 days in the absence of a sulfide-oxidizing partner. Moreover, the aniline degradation rate was significantly increased by a factor of 2.66 during co-cultivation of D. anilini with T. roseopersicina. The initial carboxylation reaction during aniline degradation was measured in cell-free extracts of D. anilini with carbon dioxide (CO2) as a co-substrate in the presence of aniline and ATP. The effects of hydrogen sulfide on this aniline carboxylating system and on phenylphosphate synthase activity for phenol activation were studied, and it was concluded that hydrogen sulfide severely inhibited these enzyme activities.
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Affiliation(s)
- Xiaoman Xie
- Department of Biology, University of Konstanz, Constance, Germany; Konstanz Research School Chemical Biology, Constance, Germany
| | - Nicolai Müller
- Department of Biology, University of Konstanz, Constance, Germany.
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Smith NW, Shorten PR, Altermann E, Roy NC, McNabb WC. A Mathematical Model for the Hydrogenotrophic Metabolism of Sulphate-Reducing Bacteria. Front Microbiol 2019; 10:1652. [PMID: 31379794 PMCID: PMC6653664 DOI: 10.3389/fmicb.2019.01652] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2019] [Accepted: 07/03/2019] [Indexed: 12/13/2022] Open
Abstract
Sulphate-reducing bacteria (SRB) are studied across a range of scientific fields due to their characteristic ability to metabolise sulphate and produce hydrogen sulphide, which can lead to significant consequences for human activities. Importantly, they are members of the human gastrointestinal microbial population, contributing to the metabolism of dietary and host secreted molecules found in this environment. The role of the microbiota in host digestion is well studied, but the full role of SRB in this process has not been established. Moreover, from a human health perspective, SRB have been implicated in a number of functional gastrointestinal disorders such as Irritable Bowel Syndrome and the development of colorectal cancer. To assist with the study of SRB, we present a mathematical model for the growth and metabolism of the well-studied SRB, Desulfovibrio vulgaris in a closed system. Previous attempts to model SRB have resulted in complex or highly specific models that are not easily adapted to the study of SRB in different environments, such as the gastrointestinal tract. We propose a simpler, Monod-based model that allows for easy alteration of both key parameter values and the governing equations to enable model adaptation. To prevent any incorrect assumptions about the nature of SRB metabolic pathways, we structure the model to consider only the concentrations of initial and final metabolites in a pathway, which circumvents the current uncertainty around hydrogen cycling by SRB. We parameterise our model using experiments with varied initial substrate conditions, obtaining parameter values that compare well with experimental estimates in the literature. We then validate our model against four independent experiments involving D. vulgaris with further variations to substrate availability. Further use of the model will be possible in a number of settings, notably as part of larger models studying the metabolic interactions between SRB and other hydrogenotrophic microbes in the human gastrointestinal tract and how this relates to functional disorders.
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Affiliation(s)
- Nick W Smith
- AgResearch, Ruakura Research Centre, Hamilton, New Zealand.,AgResearch, Grasslands Research Centre, Palmerston North, New Zealand.,Riddet Institute, Massey University, Palmerston North, New Zealand.,School of Food and Advanced Technology, Massey University, Palmerston North, New Zealand
| | - Paul R Shorten
- AgResearch, Ruakura Research Centre, Hamilton, New Zealand.,Riddet Institute, Massey University, Palmerston North, New Zealand
| | - Eric Altermann
- AgResearch, Grasslands Research Centre, Palmerston North, New Zealand.,Riddet Institute, Massey University, Palmerston North, New Zealand
| | - Nicole C Roy
- AgResearch, Grasslands Research Centre, Palmerston North, New Zealand.,Riddet Institute, Massey University, Palmerston North, New Zealand.,High-Value Nutrition National Science Challenge, The University of Auckland, Auckland, New Zealand
| | - Warren C McNabb
- Riddet Institute, Massey University, Palmerston North, New Zealand.,High-Value Nutrition National Science Challenge, The University of Auckland, Auckland, New Zealand
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46
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Synthetic microbial consortia for biosynthesis and biodegradation: promises and challenges. J Ind Microbiol Biotechnol 2019; 46:1343-1358. [PMID: 31278525 DOI: 10.1007/s10295-019-02211-4] [Citation(s) in RCA: 46] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2019] [Accepted: 07/01/2019] [Indexed: 02/07/2023]
Abstract
Functional differentiation and metabolite exchange enable microbial consortia to perform complex metabolic tasks and efficiently cycle the nutrients. Inspired by the cooperative relationships in environmental microbial consortia, synthetic microbial consortia have great promise for studying the microbial interactions in nature and more importantly for various engineering applications. However, challenges coexist with promises, and the potential of consortium-based technologies is far from being fully harnessed. Thorough understanding of the underlying molecular mechanisms of microbial interactions is greatly needed for the rational design and optimization of defined consortia. These knowledge gaps could be potentially filled with the assistance of the ongoing revolution in systems biology and synthetic biology tools. As current fundamental and technical obstacles down the road being removed, we would expect new avenues with synthetic microbial consortia playing important roles in biological and environmental engineering processes such as bioproduction of desired chemicals and fuels, as well as biodegradation of persistent contaminants.
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47
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Sulfate reduction by a haloalkaliphilic bench-scale sulfate-reducing bioreactor and its bacterial communities at different depths. Biochem Eng J 2019. [DOI: 10.1016/j.bej.2019.04.008] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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48
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Cui YX, Biswal BK, Guo G, Deng YF, Huang H, Chen GH, Wu D. Biological nitrogen removal from wastewater using sulphur-driven autotrophic denitrification. Appl Microbiol Biotechnol 2019; 103:6023-6039. [DOI: 10.1007/s00253-019-09935-4] [Citation(s) in RCA: 37] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2019] [Revised: 05/20/2019] [Accepted: 05/21/2019] [Indexed: 01/06/2023]
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49
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Labrado AL, Brunner B, Bernasconi SM, Peckmann J. Formation of Large Native Sulfur Deposits Does Not Require Molecular Oxygen. Front Microbiol 2019; 10:24. [PMID: 30740094 PMCID: PMC6355691 DOI: 10.3389/fmicb.2019.00024] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2018] [Accepted: 01/09/2019] [Indexed: 01/05/2023] Open
Abstract
Large native (i.e., elemental) sulfur deposits can be part of caprock assemblages found on top of or in lateral position to salt diapirs and as stratabound mineralization in gypsum and anhydrite lithologies. Native sulfur is formed when hydrocarbons come in contact with sulfate minerals in presence of liquid water. The prevailing model for native sulfur formation in such settings is that sulfide produced by sulfate-reducing bacteria is oxidized to zero-valent sulfur in presence of molecular oxygen (O2). Although possible, such a scenario is problematic because: (1) exposure to oxygen would drastically decrease growth of microbial sulfate-reducing organisms, thereby slowing down sulfide production; (2) on geologic timescales, excess supply with oxygen would convert sulfide into sulfate rather than native sulfur; and (3) to produce large native sulfur deposits, enormous amounts of oxygenated water would need to be brought in close proximity to environments in which ample hydrocarbon supply sustains sulfate reduction. However, sulfur stable isotope data from native sulfur deposits emplaced at a stage after the formation of the host rocks indicate that the sulfur was formed in a setting with little solute exchange with the ambient environment and little supply of dissolved oxygen. We deduce that there must be a process for the formation of native sulfur in absence of an external oxidant for sulfide. We hypothesize that in systems with little solute exchange, sulfate-reducing organisms, possibly in cooperation with other anaerobic microbial partners, drive the formation of native sulfur deposits. In order to cope with sulfide stress, microbes may shift from harmful sulfide production to non-hazardous native sulfur production. We propose four possible mechanisms as a means to form native sulfur: (1) a modified sulfate reduction process that produces sulfur compounds with an intermediate oxidation state, (2) coupling of sulfide oxidation to methanogenesis that utilizes methylated compounds, acetate or carbon dioxide, (3) ammonium oxidation coupled to sulfate reduction, and (4) sulfur comproportionation of sulfate and sulfide. We show these reactions are thermodynamically favorable and especially useful in environments with multiple stressors, such as salt and dissolved sulfide, and provide evidence that microbial species functioning in such environments produce native sulfur. Integrating these insights, we argue that microbes may form large native sulfur deposits in absence of light and external oxidants such as O2, nitrate, and metal oxides. The existence of such a process would not only explain enigmatic occurrences of native sulfur in the geologic record, but also provide an explanation for cryptic sulfur and carbon cycling beneath the seabed.
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Affiliation(s)
- Amanda L. Labrado
- Department of Geological Sciences, The University of Texas at El Paso, El Paso, TX, United States
| | - Benjamin Brunner
- Department of Geological Sciences, The University of Texas at El Paso, El Paso, TX, United States
| | | | - Jörn Peckmann
- Centrum für Erdsystemforschung und Nachhaltigkeit, Universität Hamburg, Hamburg, Germany
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50
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Fernandez-Gonzalez N, Sierra-Alvarez R, Field JA, Amils R, Sanz JL. Adaptation of granular sludge microbial communities to nitrate, sulfide, and/or p-cresol removal. Int Microbiol 2018; 22:305-316. [PMID: 30810994 DOI: 10.1007/s10123-018-00050-4] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2018] [Revised: 11/24/2018] [Accepted: 11/27/2018] [Indexed: 11/26/2022]
Abstract
Effluents from petroleum refineries contain a toxic mixture of sulfide, nitrogen, and phenolic compounds that require adequate treatment for their removal. Biological denitrification processes are a cost-effective option for the treatment of these effluents, but the knowledge on the microbial interactions in simultaneous sulfide and phenol oxidation in denitrifying reactors is still very limited. In this work, microbial community structure and macrostructure of granular biomass were studied in three denitrifying reactors treating a mixture of inorganic (sulfide) and organic (p-cresol) electron donors for their simultaneous removal. The differences in the available substrates resulted in different community assemblies that supported high removal efficiencies, indicating the community adaptation capacity to the fluctuating compositions of industrial effluents. The three reactors were dominated by nitrate reducing and denitrifying bacteria where Thiobacillus spp. were the prevalent denitrifying organisms. The toxicity and lack of adequate substrates caused the endogenous decay of the biomass, leading to release of organic matter that maintained a diverse although not very abundant group of heterotrophs. The endogenous digestion of the granules caused the degradation of its macrostructure, which should be considered to further develop the denitrification process in sulfur-based granular reactors for treatment of industrial wastewater with toxic compounds.
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Affiliation(s)
- Nuria Fernandez-Gonzalez
- Department of Molecular Biology, Universidad Autónoma de Madrid, C/Darwin 2, 28049, Madrid, Spain.
- Department of Chemical Engineering, Universidade de Santiago de Compostela, Rúa de Lope Gómez de Marzoa, s/n, 15782, Santiago de Compostela, Spain.
| | - Reyes Sierra-Alvarez
- Department of Chemical and Environmental Engineering, The University of Arizona, PO Box 210011, Tucson, AZ, 85721, USA
| | - James A Field
- Department of Chemical and Environmental Engineering, The University of Arizona, PO Box 210011, Tucson, AZ, 85721, USA
| | - Ricardo Amils
- Department of Molecular Biology, Universidad Autónoma de Madrid, C/Darwin 2, 28049, Madrid, Spain
| | - Jose Luis Sanz
- Department of Molecular Biology, Universidad Autónoma de Madrid, C/Darwin 2, 28049, Madrid, Spain
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