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Castro R, Gabriel G, Gabriel D, Gamisans X, Guimerà X. Development of a flow-cell bioreactor for immobilized sulfidogenic sludge characterization using electrochemical H 2S microsensors. CHEMOSPHERE 2024; 358:141959. [PMID: 38608772 DOI: 10.1016/j.chemosphere.2024.141959] [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: 10/16/2023] [Revised: 04/02/2024] [Accepted: 04/08/2024] [Indexed: 04/14/2024]
Abstract
The sulfate-reduction process plays a crucial role in the biological valorization of SOx gases. However, a complete understanding of the sulfidogenic process in bioreactors is limited by the lack of technologies for characterizing the sulfate-reducing activity of immobilized biomass. In this work, we propose a flow-cell bioreactor (FCB) for characterizing sulfate-reducing biomass using H2S microsensors to monitor H2S production in real-time within a biofilm. To replace natural immobilization through extracellular polymeric substance production, sulfidogenic sludge was artificially immobilized using polymers. Physical and sulfate-reducing activity studies were performed to select a polymer-biomass matrix that maintained sulfate-reducing activity of biomass while providing strong microbial retention and mechanical strength. Several operational conditions of the sulfidogenic reactor allowed to obtain a H2S profiles under different inlet sulfate loads and, additionally, 3D mapping was assessed in order to perform a hydraulic characterization. Besides, the effects of artificial immobilization on biodiversity were investigated through the characterization of microbial communities. This study demonstrated the appropriateness of immobilized-biomass for characterization of sulfidogenic biomass in FCB using H2S electrochemical microsensors, and beneficial microbiological communities shifts as well as enrichment of sulfate-reducing bacteria have been confirmed.
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Affiliation(s)
- Rebeca Castro
- Department of Mining, Industrial and ICT Engineering (EMIT), Research Group on Intelligent and Sustainable Resources and Industries (RIIS), Manresa School of Engineering (EPSEM), Universitat Politècnica de Catalunya (UPC), Av. Bases de Manresa 61-73, 08242, Manresa, Spain
| | - Gemma Gabriel
- Instituto de Microelectrónica de Barcelona, IMB-CNM (CSIC), 08193, Bellaterra, Barcelona, Spain; CIBER, de Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN), ISCIII, Spain
| | - David Gabriel
- GENOCOV Research Group, Department of Chemical, Biological and Environmental Engineering, Escola d'enginyeria, Universitat Autònoma de Barcelona, 08193, Bellaterra, Spain
| | - Xavier Gamisans
- Department of Mining, Industrial and ICT Engineering (EMIT), Research Group on Intelligent and Sustainable Resources and Industries (RIIS), Manresa School of Engineering (EPSEM), Universitat Politècnica de Catalunya (UPC), Av. Bases de Manresa 61-73, 08242, Manresa, Spain
| | - Xavier Guimerà
- Department of Mining, Industrial and ICT Engineering (EMIT), Research Group on Intelligent and Sustainable Resources and Industries (RIIS), Manresa School of Engineering (EPSEM), Universitat Politècnica de Catalunya (UPC), Av. Bases de Manresa 61-73, 08242, Manresa, Spain.
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Awasthi MK, Amobonye A, Bhagwat P, Ashokkumar V, Gowd SC, Dregulo AM, Rajendran K, Flora G, Kumar V, Pillai S, Zhang Z, Sindhu R, Taherzadeh MJ. Biochemical engineering for elemental sulfur from flue gases through multi-enzymatic based approaches - A review. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 914:169857. [PMID: 38190912 DOI: 10.1016/j.scitotenv.2023.169857] [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: 09/04/2023] [Revised: 12/30/2023] [Accepted: 12/31/2023] [Indexed: 01/10/2024]
Abstract
Flue gases are the gases which are produced from industries related to chemical manufacturing, petrol refineries, power plants and ore processing plants. Along with other pollutants, sulfur present in the flue gas is detrimental to the environment. Therefore, environmentalists are concerned about its removal and recovery of resources from flue gases due to its activation ability in the atmosphere to transform into toxic substances. This review is aimed at a critical assessment of the techniques developed for resource recovery from flue gases. The manuscript discusses various bioreactors used in resource recovery such as hollow fibre membrane reactor, rotating biological contractor, sequential batch reactor, fluidized bed reactor, entrapped cell bioreactor and hybrid reactors. In conclusion, this manuscript provides a comprehensive analysis of the potential of thermotolerant and thermophilic microbes in sulfur removal. Additionally, it evaluates the efficacy of a multi-enzyme engineered bioreactor in this process. Furthermore, the study introduces a groundbreaking sustainable model for elemental sulfur recovery, offering promising prospects for environmentally-friendly and economically viable sulfur removal techniques in various industrial applications.
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Affiliation(s)
- Mukesh Kumar Awasthi
- College of Natural Resources and Environment, Northwest A&F University, Yangling, Shaanxi Province 712100, PR China.
| | - Ayodeji Amobonye
- Department of Biotechnology and Food Science, Faculty of Applied Sciences, Durban University of Technology, P O Box 1334, Durban 4000, South Africa
| | - Prashant Bhagwat
- Department of Biotechnology and Food Science, Faculty of Applied Sciences, Durban University of Technology, P O Box 1334, Durban 4000, South Africa
| | - Veeramuthu Ashokkumar
- Center for Waste Management and Renewable Energy, Saveetha Dental College and Hospitals, Saveetha Institute of Medical and Technical Sciences, Saveetha University, Chennai 600077, India
| | - Sarath C Gowd
- Department of Environmental Science and Engineering, School of Engineering and Sciences, SRM University, Andhra Pradesh, India
| | - Andrei Mikhailovich Dregulo
- National Research University "Higher School of Economics", 17 Promyshlennaya str, 198095, Saint-Petersburg, Russia
| | - Karthik Rajendran
- Department of Environmental Science and Engineering, School of Engineering and Sciences, SRM University, Andhra Pradesh, India
| | - G Flora
- Department of Botany, St. Mary's College (Autonomous), Tamil Nadu, India
| | - Vinay Kumar
- Bioconversion and Tissue Engineering (BITE) Laboratory, Department of Community Medicine, Saveetha Medical College and Hospital, Saveetha Institute of Medical and Technical Sciences (SIMATS), Chennai, Thandalam-602105, India
| | - Santhosh Pillai
- Department of Biotechnology and Food Science, Faculty of Applied Sciences, Durban University of Technology, P O Box 1334, Durban 4000, South Africa
| | - Zengqiang Zhang
- College of Natural Resources and Environment, Northwest A&F University, Yangling, Shaanxi Province 712100, PR China
| | - Raveendran Sindhu
- Department of Food Technology, TKM Institute of Technology, Kollam 691 505, Kerala, India
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Carpanez T, Moreira V, Magalhães N, Assis I, Lange L, Amaral M. Integrated membrane-based processes to obtain organo-mineral fertilizer, water, and energy from sugarcane vinasse. Sep Purif Technol 2022. [DOI: 10.1016/j.seppur.2022.122180] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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4
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Patel M, Villa Gómez DK, Pikaar I, Clarke WP. Influence of inoculum selection on the utilisation of volatile fatty acid and glucose in sulfate reducing reactors. ENVIRONMENTAL TECHNOLOGY 2022; 43:225-236. [PMID: 32543310 DOI: 10.1080/09593330.2020.1783371] [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: 02/12/2020] [Accepted: 05/19/2020] [Indexed: 06/11/2023]
Abstract
The capacity of three inocula (sewer biofilm, mangrove and estuary sediment) to utilise typical fermentation products of municipal solid waste for biological sulfate reduction was investigated. Each inoculum was used in two reactors, one fed a mixture of volatile fatty acids and another fed glucose to provide a suite of fermentation products via naturally occurring fermentation. Following 228 days of reactor operation, reactors inoculated with mangrove and estuary sediments exhibited higher sulfate reducing efficiencies (80-88%) compared to the biofilm-inoculated reactors (32-49%). Minimal use of acetate and its accumulation in the biofilm-inoculated reactors pointed to the high abundance of incomplete-oxidising sulfate reducing bacteria (SRB), Desulfovibrio and Desulfobulbus (90-96% of the sulfate reducing population). Although Desulfovibrio was also prominent in reactors inoculated with mangrove and estuary sediments, Desulfobacter, a known acetoclastic sulfate reducer, emerged from trace levels in these sediment (0.01% abundance in the estuary sediments and below detection in the mangrove sediments) to comprise 14%-70% of the sulfate reducing population at the end of reactor operation.
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Affiliation(s)
- Miheka Patel
- School of Civil Engineering, The University of Queensland, Brisbane, Australia
- School of Chemical Engineering, University of Queensland, Brisbane, Australia
| | - Denys K Villa Gómez
- School of Civil Engineering, The University of Queensland, Brisbane, Australia
| | - Ilje Pikaar
- School of Civil Engineering, The University of Queensland, Brisbane, Australia
| | - William P Clarke
- School of Civil Engineering, The University of Queensland, Brisbane, Australia
- School of Chemical Engineering, University of Queensland, Brisbane, Australia
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Zhou J, Xing J. Haloalkaliphilic denitrifiers-dependent sulfate-reducing bacteria thrive in nitrate-enriched environments. WATER RESEARCH 2021; 201:117354. [PMID: 34157573 DOI: 10.1016/j.watres.2021.117354] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/25/2021] [Revised: 05/17/2021] [Accepted: 06/06/2021] [Indexed: 06/13/2023]
Abstract
As bridge in global cycles of carbon, nitrogen, and sulfur, sulfate-reducing bacteria (SRB) play more and more important role under various environments, especially the saline-alkali environments with significant increase in area caused by human activities. Sulfate reduction can be inhibited by environmental nitrate. However, how SRB cope with environmental nitrate stress in these extreme environments still remain unclear. Here, after a long-term enrichment of sediment from saline-alkali Qinghai Lake of China using anaerobic filter reactors, nitrate was added to evaluate the response of SRB. With the increase in nitrate concentrations, the inhibition on sulfate reduction was gradually observed. Interestingly, extension of hydraulic retention time can relieve the inhibition caused by high nitrate concentration. Mass balance analysis showed that nitrate reduction is prior to sulfate reduction. Further metatranscriptomic analysis shows that, genes of nitrite reductase (periplasmic cytochrome c nitrite reductase gene) and energy metabolisms (lactate dehydrogenase, formate dehydrogenase, pyruvate:ferredoxin-oxidoreductase, and fumarate reductase genes) in SRB was down-regulated, challenging the long-held opinion that up-regulation of these genes can relieve the nitrate inhibition. Most importantly, the nitrate addition activated the denitrification pathway in denitrifying bacteria (DB) via significantly up-regulating the expression of the corresponding genes (nitrite reductase, nitric oxide reductase c subunit, nitric oxide reductase activation protein and nitrous oxide reductase genes), quickly reducing the environmental nitrate and relieving the nitrate inhibition on SRB. Our findings unravel that in response to environmental nitrate stress, haloalkaliphilic SRB show dependency on DB, and expand our knowledge of microbial relationship during sulfur and nitrogen cycles.
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Affiliation(s)
- Jiemin Zhou
- Key Laboratory of Drinking Water Science and Technology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, 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
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6
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Wang S, Liu Q, Li J, Wang Z. Methane in wastewater treatment plants: status, characteristics, and bioconversion feasibility by methane oxidizing bacteria for high value-added chemicals production and wastewater treatment. WATER RESEARCH 2021; 198:117122. [PMID: 33865027 DOI: 10.1016/j.watres.2021.117122] [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: 12/16/2020] [Revised: 02/23/2021] [Accepted: 04/02/2021] [Indexed: 06/12/2023]
Abstract
Methane is a type of renewable fuel that can generate many types of high value-added chemicals, however, besides heat and power production, there is little methane utilization in most of the wastewater treatment plants (WWTPs) all round the world currently. In this review, the status of methane production performance from WWTPs was firstly investigated. Subsequently, based on the identification and classification of methane oxidizing bacteria (MOB), the key enzymes and metabolic pathway of MOB were presented in depth. Then the production, extraction and purification process of high value-added chemicals, including methanol, ectoine, biofuel, bioplastic, methane protein and extracellular polysaccharides, were introduced in detail, which was conducive to understand the bioconversion process of methane. Finally, the use of methane in wastewater treatment process, including nitrogen removal, emerging contaminants removal as well as resource recovery was extensively explored. These findings could provide guidance in the development of sustainable economy and environment, and facilitate biological methane conversion by using MOB in further attempts.
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Affiliation(s)
- Shuo Wang
- Jiangsu Key Laboratory of Anaerobic Biotechnology, School of Environment and Civil Engineering, Jiangnan University, Wuxi 214122, China; Jiangsu Engineering Laboratory for Biomass Energy and Carbon Reduction Technology, Wuxi 214122, China; Jiangsu College of Water Treatment Technology and Material Collaborative Innovation Center, Suzhou 215009, China
| | - Qixin Liu
- Jiangsu Key Laboratory of Anaerobic Biotechnology, School of Environment and Civil Engineering, Jiangnan University, Wuxi 214122, China
| | - Ji Li
- Jiangsu Key Laboratory of Anaerobic Biotechnology, School of Environment and Civil Engineering, Jiangnan University, Wuxi 214122, China; Jiangsu Engineering Laboratory for Biomass Energy and Carbon Reduction Technology, Wuxi 214122, China; Jiangsu College of Water Treatment Technology and Material Collaborative Innovation Center, Suzhou 215009, China.
| | - Zhiwu Wang
- Department of Civil and Environmental Engineering, Virginia Tech, Manassas, VA 20110, USA.
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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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Syngas as Electron Donor for Sulfate and Thiosulfate Reducing Haloalkaliphilic Microorganisms in a Gas-Lift Bioreactor. Microorganisms 2020; 8:microorganisms8091451. [PMID: 32971967 PMCID: PMC7565546 DOI: 10.3390/microorganisms8091451] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2020] [Revised: 09/17/2020] [Accepted: 09/21/2020] [Indexed: 11/16/2022] Open
Abstract
Biodesulfurization processes remove toxic and corrosive hydrogen sulfide from gas streams (e.g., natural gas, biogas, or syngas). To improve the efficiency of these processes under haloalkaline conditions, a sulfate and thiosulfate reduction step can be included. The use of H2/CO mixtures (as in syngas) instead of pure H2 was tested to investigate the potential cost reduction of the electron donor required. Syngas is produced in the gas-reforming process and consists mainly of H2, carbon monoxide (CO), and carbon dioxide (CO2). Purification of syngas to obtain pure H2 implies higher costs because of additional post-treatment. Therefore, the use of syngas has merit in the biodesulfurization process. Initially, CO inhibited hydrogen-dependent sulfate reduction. However, after 30 days the biomass was adapted and both H2 and CO were used as electron donors. First, formate was produced, followed by sulfate and thiosulfate reduction, and later in the reactor run acetate and methane were detected. Sulfide production rates with sulfate and thiosulfate after adaptation were comparable with previously described rates with only hydrogen. The addition of CO marginally affected the microbial community in which Tindallia sp. was dominant. Over time, acetate production increased and acetogenesis became the dominant process in the bioreactor. Around 50% of H2/CO was converted to acetate. Acetate supported biomass growth and higher biomass concentrations were reached compared to bioreactors without CO feed. Finally, CO addition resulted in the formation of small, compact microbial aggregates. This suggests that CO or syngas can be used to stimulate aggregation in haloalkaline biodesulfurization systems.
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Sulfidogenesis establishment under increasing metal and nutrient concentrations: An effective approach for biotreating sulfate-rich wastewaters using an innovative structured-bed reactor (AnSTBR). ACTA ACUST UNITED AC 2020. [DOI: 10.1016/j.biteb.2020.100458] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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10
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Yan J, Liu J, Ye W, Yuan W, Lin J, Xie J, Huang X, Xie J, Bao M, Yang J, Liu S, Chen W, Chen Y, Zhang H. Enhanced organic compounds utilization and desalination of coal-fired power plant FGD wastewater by mixed bacterial sulphate reducing consortium. Biochem Eng J 2020. [DOI: 10.1016/j.bej.2020.107549] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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The Evaluation of Simultaneous COD and Sulfate Removal at High COD/SO42− Ratio and Haloalkaline Condition. ARABIAN JOURNAL FOR SCIENCE AND ENGINEERING 2020. [DOI: 10.1007/s13369-020-04451-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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12
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Fuess LT, Zaiat M, do Nascimento CAO. Novel insights on the versatility of biohydrogen production from sugarcane vinasse via thermophilic dark fermentation: Impacts of pH-driven operating strategies on acidogenesis metabolite profiles. BIORESOURCE TECHNOLOGY 2019; 286:121379. [PMID: 31051398 DOI: 10.1016/j.biortech.2019.121379] [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: 03/25/2019] [Revised: 04/22/2019] [Accepted: 04/24/2019] [Indexed: 05/15/2023]
Abstract
An innovative application of the anaerobic structured-bed reactor (AnSTBR) in thermophilic dark fermentation of sugarcane vinasse targeting biohydrogen (bioH2) production was assessed. A detailed metabolite monitoring program identified the major substrates and primary metabolic pathways within the system. Increasing the applied organic loading rate positively affected bioH2 production, reaching 2074 N mL-H2 L-1 d-1 and indicating an optimal load of approximately 70 kg-COD m-3 d-1. Controlling the fermentation pH (5.0-5.5) was the primary strategy to maintain bioH2-producing conditions, offsetting negative impacts associated with the compositional variability of vinasse. Metabolic correlations pointed out lactate as the primary substrate for bioH2 production, indicating its accumulation as evidence of impaired reactors. The versatility of the acidogenic system was confirmed by identifying three major metabolic pathways according to the pH, i.e., lactate-producing (pH <5.0), bioH2-/butyrate-producing (pH = 5.0-5.5) and bioH2-producing/sulfate-reducing (pH >6.0) systems, which enables managing the operation of the reactors for diversified purposes in practical aspects.
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Affiliation(s)
- Lucas Tadeu Fuess
- 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; Biological Process Laboratory, São Carlos School of Engineering, University of São Paulo (LPB/EESC/USP), Av. João Dagnone 1100, São Carlos, SP 13563-120, Brazil.
| | - Marcelo Zaiat
- Biological Process Laboratory, São Carlos School of Engineering, University of São Paulo (LPB/EESC/USP), Av. João Dagnone 1100, São Carlos, SP 13563-120, Brazil.
| | - Claudio Augusto Oller do Nascimento
- 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.
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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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14
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Chinalia FA, Andrade MB, Vale TOD, Santos SCD, Moura-Costa LFD, Almeida PFD. The potential impact of using a surfactant and an alcoholic co-surfactant on SRB activity during EOR. ENVIRONMENTAL TECHNOLOGY 2019; 40:2100-2106. [PMID: 29405085 DOI: 10.1080/09593330.2018.1437780] [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: 08/01/2017] [Accepted: 02/02/2018] [Indexed: 06/07/2023]
Abstract
Surfactants and co-surfactants play an important role in enhanced oil recovery for they improve petroleum solubility and reduce interfacial tensions between oil, water and the rock formation. Ethanol is receiving renewed attention as potential co-surfactant because of the negative results obtained with the use of salts and alkaline substances. Sulphate-reducing bacteria (SRB) can use surfactants and co-surfactants as carbon sources and, consequently, this can increase the biological accumulation of sulphide (souring). The aim of this research is to correlate SRB activity with different concentrations of co-surfactant (ethanol) as an attempt to quantifying in which concentration such compound can potentially increase or inhibit souring. The results show that the combination of surfactant (lauryl glucoside) and co-surfactant (ethanol) can increase SRB activity to about 2.3-fold. The highest sulphate consumption rate of 591 μg l-1 h-1 was observed in experiments with 0.03% and 1.5% (v/v) of surfactant and ethanol, respectively. The experiments indicated that SRB activity is only controlled by ethanol concentrations above 6.5% (v/v). Ethanol can potentially decrease costs with the use of biocides and significantly increase oil recovery ratios. Tests with the model Desulfovibrio vulgaris were not comparable with the results obtained with the SRB consortium.
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Affiliation(s)
- Fabio Alexandre Chinalia
- a Departamento de Biointeração, Instituto de Ciências da Saúde (ICS), Universidade Federal da Bahia , Salvador , Brazil
| | - Mayara Borges Andrade
- a Departamento de Biointeração, Instituto de Ciências da Saúde (ICS), Universidade Federal da Bahia , Salvador , Brazil
| | - Tatiana Oliveira do Vale
- a Departamento de Biointeração, Instituto de Ciências da Saúde (ICS), Universidade Federal da Bahia , Salvador , Brazil
| | - Sueli Carvalho Dos Santos
- a Departamento de Biointeração, Instituto de Ciências da Saúde (ICS), Universidade Federal da Bahia , Salvador , Brazil
| | - Lilia Ferreira de Moura-Costa
- a Departamento de Biointeração, Instituto de Ciências da Saúde (ICS), Universidade Federal da Bahia , Salvador , Brazil
| | - Paulo Fernando de Almeida
- a Departamento de Biointeração, Instituto de Ciências da Saúde (ICS), Universidade Federal da Bahia , Salvador , Brazil
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Qian Z, Tianwei H, Mackey HR, van Loosdrecht MCM, Guanghao C. Recent advances in dissimilatory sulfate reduction: From metabolic study to application. WATER RESEARCH 2019; 150:162-181. [PMID: 30508713 DOI: 10.1016/j.watres.2018.11.018] [Citation(s) in RCA: 82] [Impact Index Per Article: 16.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/26/2018] [Revised: 10/25/2018] [Accepted: 11/08/2018] [Indexed: 05/24/2023]
Abstract
Sulfate-reducing bacteria (SRB) are a group of diverse anaerobic microorganisms omnipresent in natural habitats and engineered environments that use sulfur compounds as the electron acceptor for energy metabolism. Dissimilatory sulfate reduction (DSR)-based techniques mediated by SRB have been utilized in many sulfate-containing wastewater treatment systems worldwide, particularly for acid mine drainage, groundwater, sewage and industrial wastewater remediation. However, DSR processes are often operated suboptimally and disturbances are common in practical application. To improve the efficiency and robustness of SRB-based processes, it is necessary to study SRB metabolism and operational conditions. In this review, the mechanisms of DSR processes are reviewed and discussed focusing on intracellular and extracellular electron transfer with different electron donors (hydrogen, organics, methane and electrodes). Based on the understanding of the metabolism of SRB, responses of SRB to environmental stress (pH-, temperature-, and salinity-related stress) are summarized at the species and community levels. Application in these stressed conditions is discussed and future research is proposed. The feasibility of recovering energy and resources such as biohydrogen, hydrocarbons, polyhydroxyalkanoates, magnetite and metal sulfides through the use of SRB were investigated but some long-standing questions remain unanswered. Linking the existing scientific understanding and observations to practical application is the challenge as always for promotion of SRB-based techniques.
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Affiliation(s)
- Zeng Qian
- Department of Civil and Environmental Engineering, The Hong Kong University of Science and Technology, Hong Kong, China
| | - Hao Tianwei
- Department of Civil and Environmental Engineering, Faculty of Science and Technology, University of Macau, Macau, China; Department of Civil and Environmental Engineering, The Hong Kong University of Science and Technology, Hong Kong, China.
| | - Hamish Robert Mackey
- Division of Sustainable Development, College of Science and Engineering, Hamad Bin Khalifa University, Qatar Foundation, Doha, Qatar
| | | | - Chen Guanghao
- Department of Civil and Environmental Engineering, The Hong Kong University of Science and Technology, Hong Kong, China; Water Technology Center, The Hong Kong University of Science and Technology, Hong Kong, China; Hong Kong Branch of Chinese National Engineering Research Center for Control & Treatment of Heavy Metal Pollution, The Hong Kong University of Science and Technology, Hong Kong, China; Wastewater Treatment Laboratory, FYT Graduate School, The Hong Kong University of Science and Technology, Nansha, Guangzhou, China.
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Yang FL, Li WZ, Li Q, Li PF, Wang ZJ, Luo LN. Unravelling the influence of sulfate loading on enhancing anaerobic co-digestion of corn stover and bio-kerosene production wastewater. J Biosci Bioeng 2019; 127:99-106. [DOI: 10.1016/j.jbiosc.2018.07.010] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2017] [Revised: 05/01/2018] [Accepted: 07/10/2018] [Indexed: 01/23/2023]
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17
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Sánchez-Soto Jiménez MF, Cerqueda-García D, Montero-Muñoz JL, Aguirre-Macedo ML, García-Maldonado JQ. Assessment of the bacterial community structure in shallow and deep sediments of the Perdido Fold Belt region in the Gulf of Mexico. PeerJ 2018; 6:e5583. [PMID: 30225176 PMCID: PMC6139248 DOI: 10.7717/peerj.5583] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2018] [Accepted: 08/14/2018] [Indexed: 12/31/2022] Open
Abstract
The Mexican region of the Perdido Fold Belt (PFB), in northwestern Gulf of Mexico (GoM), is a geological province with important oil reservoirs that will be subjected to forthcoming oil exploration and extraction activities. To date, little is known about the native microbial communities of this region, and how these change relative to water depth. In this study we assessed the bacterial community structure of surficial sediments by high-throughput sequencing of the 16S rRNA gene at 11 sites in the PFB, along a water column depth gradient from 20 to 3,700 m, including five shallow (20–600 m) and six deep (2,800–3,700 m) samples. The results indicated that OTUs richness and diversity were higher for shallow sites (OTUs = 2,888.2 ± 567.88; H′ = 9.6 ± 0.85) than for deep sites (OTUs = 1,884.7 ± 464.2; H′ = 7.74 ± 1.02). Nonmetric multidimensional scaling (NMDS) ordination revealed that shallow microbial communities grouped separately from deep samples. Additionally, the shallow sites plotted further from each other on the NMDS whereas samples from the deeper sites (abyssal plains) plotted much more closely to each other. These differences were related to depth, redox potential, sulfur concentration, and grain size (lime and clay), based on the environmental variables fitted with the axis of the NMDS ordination. In addition, differential abundance analysis identified 147 OTUs with significant fold changes among the zones (107 from shallow and 40 from deep sites), which constituted 10 to 40% of the total relative abundances of the microbial communities. The most abundant OTUs with significant fold changes in shallow samples corresponded to Kordiimonadales, Rhodospirillales, Desulfobacterales (Desulfococcus), Syntrophobacterales and Nitrospirales (GOUTA 19, BD2-6, LCP-6), whilst Chromatiales, Oceanospirillales (Amphritea, Alcanivorax), Methylococcales, Flavobacteriales, Alteromonadales (Shewanella, ZD0117) and Rhodobacterales were the better represented taxa in deep samples. Several of the OTUs detected in both deep and shallow sites have been previously related to hydrocarbons consumption. Thus, this metabolism seems to be well represented in the studied sites, and it could abate future hydrocarbon contamination in this ecosystem. The results presented herein, along with biological and physicochemical data, constitute an available reference for further monitoring of the bacterial communities in this economically important region in the GoM.
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Affiliation(s)
- Ma Fernanda Sánchez-Soto Jiménez
- Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional, Unidad Mérida, Departamento de Recursos del Mar, Mérida, Yucatán, México
| | - Daniel Cerqueda-García
- Consorcio de Investigación del Golfo de México (CIGOM). Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional, Unidad Mérida. Departamento de Recursos del Mar, Mérida, Yucatán, México
| | - Jorge L Montero-Muñoz
- Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional, Unidad Mérida, Departamento de Recursos del Mar, Mérida, Yucatán, México
| | - Ma Leopoldina Aguirre-Macedo
- Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional, Unidad Mérida, Departamento de Recursos del Mar, Mérida, Yucatán, México
| | - José Q García-Maldonado
- CONACYT - Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional, Unidad Mérida. Departamento de Recursos del Mar, Mérida, Yucatán, México
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Fuess LT, Garcia ML, Zaiat M. Seasonal characterization of sugarcane vinasse: Assessing environmental impacts from fertirrigation and the bioenergy recovery potential through biodigestion. THE SCIENCE OF THE TOTAL ENVIRONMENT 2018; 634:29-40. [PMID: 29626768 DOI: 10.1016/j.scitotenv.2018.03.326] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/22/2017] [Revised: 03/26/2018] [Accepted: 03/26/2018] [Indexed: 06/08/2023]
Abstract
Sugarcane vinasse has been widely used as a soil fertilizer in the Brazilian sucro-alcohol industry for recycling potassium and water. However, the potential negative effects from long-term soil fertirrigation represent a major drawback regarding this practice, whereas the application of biodigestion represents an efficient method for reducing the polluting organic load and recovering bioenergy from vinasse. Regardless of the predicted use for vinasse, an understanding of the potential of each option is imperative, as the seasonal alterations in the inorganic/organic fractions of vinasse directly affect its management. In this context, this study presents a detailed compositional characterization of sugarcane vinasse from a large-scale Brazilian biorefinery throughout the 2014/2015 harvest to assess the environmental effects (due to fertirrigation) and to estimate the biogas energetic potential. Calculated inputs of organic matter into soils due to vinasse land application were equivalent to the polluting load of populations (117-257inhabha-1) at least 2-fold greater than the largest Brazilian capital cities (78-70inhabha-1). Two-phase biodigestion could efficiently reduce the polluting load of vinasse (23-52inhabha-1) and eliminate the negative effects from direct sulfide emissions in the environment. However, a high risk of soil sodification could result from using high doses of Na-based alkalizing compounds in biodigestion plants. Finally, the optimized recovery of bioenergy through biogas (13.3-26.7MW as electricity) could supply populations as large as 305 thousand inhabitants, so that over 30% of the surplus electricity produced by the studied biorefinery could be obtained from biogas. Overall, applying biodigestion in the treatment of vinasse provides important environmental and energetic gains. However, the benefits of reducing the polluting organic load of vinasse through bioenergy recovery may lose their effect depending on the alkalizing strategy, indicating that the proper use of chemicals in full-scale biodigestion plants is imperative to attain process sustainability.
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Affiliation(s)
- Lucas Tadeu Fuess
- 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.
| | - Marcelo Loureiro Garcia
- São Paulo State University (UNESP), Institute of Geosciences and Exact Sciences (IGCE), Campus of Rio Claro. Av. 24-A, 1515, Bela Vista, Rio Claro, São Paulo 13506-900, Brazil.
| | - Marcelo Zaiat
- 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.
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Tijani H, Yuzir A, Abdullah N. Producing desulfurized biogas using two-stage domesticated shear-loop anaerobic contact stabilization system. WASTE MANAGEMENT (NEW YORK, N.Y.) 2018; 78:770-780. [PMID: 32559969 DOI: 10.1016/j.wasman.2018.06.045] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/24/2018] [Revised: 05/10/2018] [Accepted: 06/23/2018] [Indexed: 06/11/2023]
Abstract
In this study, a two-stage domesticated shear-loop anaerobic contact stabilization (SLACS) system is introduced as a new reactor design to enhance methane productivity with significant reduction in hydrogen sulphide (H2S) synthesis. Due to the rich sulfate content in industrial wastewaters, the initial fermentation phase of anaerobic digestion is highly acidifying and often leads to severe performance losses, digester's instability, and even culture crash. The SLACS system functions as a dissimilatory sulfate reduction - methanogenic reactor consisting of two compartments, a shear-loop anaerobic bed (SLAB) unit and an anaerobic plug flow (APF) unit. The functional role of the SLAB unit is not limited to acidogenesis but also sulfidogenic processes, which curtails H2S generation in the APF unit (methanogenic stage). Experimental observations indicated that pH serves a critical role in the cohabitation of acidogenic and sulfidogenic microbes in the SLAB unit. Although acidogenesis was not influenced by pH within the range of 4.5-6.0, it is vital to stabilize the pH of this unit at 5.4 to establish a steady sulfate reduction of above 75%. The highest desulfurization achieved in this compartment was 88% under a hydraulic retention time (HRT) of 4 h. With an average methane productivity of 256 mL g-1 VS, the methanogenic performance of the two-stage domesticated SLACS system shows a 32% methanogenic proficiency higher than that of the one-stage digestion system. Microbial community structure within the system carried out via Next Generation Sequencing (NGS) provided qualitative data on the sludge's sulfidogenic and methanogenic performance.
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Affiliation(s)
- Hamzat Tijani
- Algal Biomass iKohza, Malaysia-Japan International Institute of Technology (MJIIT), Universiti Teknologi Malaysia, Jalan Sultan Yahya Petra, 54100 Kuala Lumpur, Malaysia
| | - Ali Yuzir
- Department of Environmental Engineering & Green Technology, Malaysia-Japan International Institute of Technology (MJIIT), Universiti Teknologi Malaysia, Jalan Sultan Yahya Petra, 54100 Kuala Lumpur, Malaysia.
| | - Norhayati Abdullah
- Department of Environmental Engineering & Green Technology, Malaysia-Japan International Institute of Technology (MJIIT), Universiti Teknologi Malaysia, Jalan Sultan Yahya Petra, 54100 Kuala Lumpur, Malaysia
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Gil-Garcia C, de Godoi LAG, Fuess LT, Damianovic MHRZ. Performance improvement of a thermophilic sulfate-reducing bioreactor under acidogenic conditions: Effects of diversified operating strategies. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2018; 207:303-312. [PMID: 29179118 DOI: 10.1016/j.jenvman.2017.11.043] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/11/2017] [Revised: 11/08/2017] [Accepted: 11/16/2017] [Indexed: 06/07/2023]
Abstract
The establishment of a sulfidogenic environment under thermophilic (55 °C) acidogenic conditions was assessed in an innovative structured-bed bioreactor to enhance sulfate removal and acetate production prior to methanogenesis. Diversified operating strategies, i.e., variations in the hydraulic retention time (HRT; 6-12 h), sulfate loading rate (SLR; 8-16 kg SO42- m-3 day-1) and liquid phase recirculation ratio (0.0-57.0) were assessed to both enable the establishment of sulfate-reducing conditions and remove H2S from the liquid phase. Ethanol was used as the only carbon source. Applying a low HRT (6 h) as the initial operating strategy severely hindered the establishment of sulfate-reducing bacteria (SRB) populations within the system (sulfate removal < 27.5%). In turn, applying effluent recirculation had a positive impact on the system (sulfate removal ∼ 60%) by providing an adequate buffer control along the entire height of the system, as well by displacing over 70% of the H2S to the gaseous phase. The maintenance of pH values above 6.1 proved to be adequate for the sulfidogenic activity, whereas enhanced acidic conditions (pH < 6.0) at the basal portion of the reactor comprised a determining factor to hinder sulfate reduction. SRB were able to handle H2S and acetate concentrations as high as 232 mg L-1 and 3111 mg L-1, respectively, after establishing an effective acidogenic/sulfidogenic environment, indicating that the proposed system has the potential to be used as the first stage in the anaerobic processing of sulfate-rich wastewater streams.
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Affiliation(s)
- Carolina Gil-Garcia
- Biological Process Laboratory, São Carlos School of Engineering, University of São Paulo (LPB/EESC/USP), Av. João Dagnone 1100, São Carlos, São Paulo 13563-120, Brazil.
| | - Leandro Augusto Gouvêa de Godoi
- Biological Process Laboratory, São Carlos School of Engineering, University of São Paulo (LPB/EESC/USP), Av. João Dagnone 1100, São Carlos, São Paulo 13563-120, Brazil.
| | - Lucas Tadeu Fuess
- Biological Process Laboratory, São Carlos School of Engineering, University of São Paulo (LPB/EESC/USP), Av. João Dagnone 1100, São Carlos, São Paulo 13563-120, Brazil.
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Microbial communities in the native habitats of Agaricus sinodeliciosus from Xinjiang Province revealed by amplicon sequencing. Sci Rep 2017; 7:15719. [PMID: 29146962 PMCID: PMC5691072 DOI: 10.1038/s41598-017-16082-1] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2017] [Accepted: 11/07/2017] [Indexed: 11/22/2022] Open
Abstract
Agaricus sinodeliciosus is an edible species described from China and has been successfully cultivated. However, no studies have yet reported the influence factors implicated in the process of fructification. To better know abiotic and biotic factors, physiochemical characteristics and microbial communities were investigated in five different soil samples collected in the native habitats of specimens from northern Xinjiang, southern Xinjiang, and Zhejiang Province, respectively. There are major differences in texture and morphology among different specimens of A. sinodeliciosus from Xinjiang Province. A. sinodeliciosus from southern Xinjiang was the largest. Concentrations of DOC and TN and C/N ratio are not the main reason for the differences. Microbial communities were analyzed to find out mushroom growth promoting microbes (MGPM), which may lead to the differences. Functional microbes were picked out and can be divided into two categories. Microbes in the first category may belong to MGPM. There may be symbiotic relationships between microbes in the second category and A. sinodeliciosus. Certain analyses of microbial communities support the hypothesis that interactions between microbes and mushrooms would be implicated in morphological variation of the collected mushrooms. Redundancy analysis results indicate that high DOC/NH4+-N ratio and NH4+-N concentration can improve the yield of A. sinodeliciosus.
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22
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de Aquino S, Fuess LT, Pires EC. Media arrangement impacts cell growth in anaerobic fixed-bed reactors treating sugarcane vinasse: Structured vs. randomic biomass immobilization. BIORESOURCE TECHNOLOGY 2017; 235:219-228. [PMID: 28365350 DOI: 10.1016/j.biortech.2017.03.120] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/20/2017] [Revised: 03/20/2017] [Accepted: 03/21/2017] [Indexed: 06/07/2023]
Abstract
This study reports on the application of an innovative structured-bed reactor (FVR) as an alternative to conventional packed-bed reactors (PBRs) to treat high-strength solid-rich wastewaters. Using the FVR prevents solids from accumulating within the fixed-bed, while maintaining the advantages of the biomass immobilization. The long-term operation (330days) of a FVR and a PBR applied to sugarcane vinasse under increasing organic loads (2.4-18.0kgCODm-3day-1) was assessed, focusing on the impacts of the different media arrangements over the production and retention of biomass. Much higher organic matter degradation rates, as well as long-term operational stability and high conversion efficiencies (>80%) confirmed that the FVR performed better than the PBR. Despite the equivalent operating conditions, the biomass growth yield was different in both reactors, i.e., 0.095gVSSg-1COD (FVR) and 0.066gVSSg-1COD (PBR), indicating a clear control of the media arrangement over the biomass production in fixed-bed reactors.
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Affiliation(s)
- Samuel de Aquino
- Laboratório de Processos Biológicos, Escola de Engenharia de São Carlos, Universidade de São Paulo (LPB/EESC/USP), Av. João Dagnone 1100, São Carlos, São Paulo 13.563-120, Brazil.
| | - Lucas Tadeu Fuess
- Laboratório de Processos Biológicos, Escola de Engenharia de São Carlos, Universidade de São Paulo (LPB/EESC/USP), Av. João Dagnone 1100, São Carlos, São Paulo 13.563-120, Brazil.
| | - Eduardo Cleto Pires
- Laboratório de Processos Biológicos, Escola de Engenharia de São Carlos, Universidade de São Paulo (LPB/EESC/USP), Av. João Dagnone 1100, São Carlos, São Paulo 13.563-120, Brazil; Departamento de Hidráulica e Saneamento, Escola de Engenharia de São Carlos, Universidade de São Paulo (SHS/EESC/USP), Av. Trabalhador São-Carlense 400, São Carlos, São Paulo 13.566-590, Brazil.
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23
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Kiyuna LSM, Fuess LT, Zaiat M. Unraveling the influence of the COD/sulfate ratio on organic matter removal and methane production from the biodigestion of sugarcane vinasse. BIORESOURCE TECHNOLOGY 2017; 232:103-112. [PMID: 28214696 DOI: 10.1016/j.biortech.2017.02.028] [Citation(s) in RCA: 42] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/02/2017] [Revised: 02/04/2017] [Accepted: 02/08/2017] [Indexed: 06/06/2023]
Abstract
Throughout the sugarcane harvest, it is common for sulfate to accumulate in the vinasse of sugar and ethanol plants. However, little is known regarding the influence of sulfate on the anaerobic digestion (AD) of vinasse, which may lead to severe performance losses. This study assessed the influence of various COD/sulfate ratios (12.0, 10.0 and 7.5) on both COD removal and methane (CH4) production from sugarcane vinasse AD. Batch assays were conducted in thermophilic conditions. At a COD/sulfate ratio of 7.5, CH4 production was 35% lower compared with a ratio of 12.0, considering a diversion of approximately 13.6% of the electron flow to sulfidogenesis. The diversion of electrons to sulfidogenesis was negligible at COD/sulfate ratios higher than 25, considering the exponential increase in CH4 production. Organic matter degradation was not greatly affected by sulfidogenesis, with COD removal levels higher than 80%, regardless of the initial COD/sulfate ratio.
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Affiliation(s)
- Luma Sayuri Mazine Kiyuna
- Biological Processes Laboratory, São Carlos School of Engineering, University of São Paulo, 1100 João Dagnone Avenue, 13563-120 São Carlos, SP, Brazil.
| | - Lucas Tadeu Fuess
- Biological Processes Laboratory, São Carlos School of Engineering, University of São Paulo, 1100 João Dagnone Avenue, 13563-120 São Carlos, SP, Brazil.
| | - Marcelo Zaiat
- Biological Processes Laboratory, São Carlos School of Engineering, University of São Paulo, 1100 João Dagnone Avenue, 13563-120 São Carlos, SP, Brazil; Brazilian Bioethanol Science and Technology Laboratory (CTBE), Brazilian Center for Research in Energy and Materials (CNPEM), 10000 Giuseppe Máximo Scolfaro Street, 13083-970 Campinas, SP, Brazil.
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24
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Biotic conversion of sulphate to sulphide and abiotic conversion of sulphide to sulphur in a microbial fuel cell using cobalt oxide octahedrons as cathode catalyst. Bioprocess Biosyst Eng 2017; 40:759-768. [PMID: 28180999 DOI: 10.1007/s00449-017-1741-y] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2016] [Accepted: 01/20/2017] [Indexed: 02/05/2023]
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Sousa JAB, Bijmans MFM, Stams AJM, Plugge CM. Thiosulfate Conversion to Sulfide by a Haloalkaliphilic Microbial Community in a Bioreactor Fed with H 2 Gas. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2017; 51:914-923. [PMID: 27997142 DOI: 10.1021/acs.est.6b04497] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
In industrial gas biodesulfurization systems, where haloalkaline conditions prevail, a thiosulfate containing bleed stream is produced. This bleed stream can be treated in a separate bioreactor by reducing thiosulfate to sulfide and recycling it. By performing treatment and recycling of the bleed stream, its disposal decreases and less caustics are required to maintain the high pH. In this study, anaerobic microbial thiosulfate conversion to sulfide in a H2/CO2 fed bioreactor operated at haloalkaline conditions was investigated. Thiosulfate was converted by reduction to sulfide as well as disproportionation to sulfide and sulfate. Formate production from H2/CO2 was observed as an important reaction in the bioreactor. Formate, rather than H2, might have been used as the main electron donor by thiosulfate/sulfate-reducing bacteria. The microbial community was dominated by bacteria belonging to the family Clostridiaceae most closely related to Tindallia texcoconensis. Bacteria phylogenetically related to known haloalkaline sulfate and thiosulfate reducers, thiosulfate-disproportionating bacteria, and remarkably sulfur-oxidizing bacteria were also detected. On the basis of the results, two approaches to treat the biodesulfurization waste stream are proposed: (i) addition of electron donor to reduce thiosulfate to sulfide and (ii) thiosulfate disproportionation without the need for an electron donor. The concept of application of solely thiosulfate disproportionation is discussed.
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Affiliation(s)
- João A B Sousa
- Laboratory of Microbiology, Wageningen University , Stippeneng 4, 6708 WE Wageningen, The Netherlands
- Wetsus , European Centre of Excellence for Sustainable Water Technology, Oostergoweg 9, 8911 MA Leeuwarden, The Netherlands
| | - 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 , Stippeneng 4, 6708 WE Wageningen, The Netherlands
- CEB-Centre of Biological Engineering, University of Minho , Campus de Gualtar, 4710-057, Braga, Portugal
| | - Caroline M Plugge
- Laboratory of Microbiology, Wageningen University , 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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Lu X, Zhen G, Ni J, Kubota K, Li YY. Sulfidogenesis process to strengthen re-granulation for biodegradation of methanolic wastewater and microorganisms evolution in an UASB reactor. WATER RESEARCH 2017; 108:137-150. [PMID: 27817890 DOI: 10.1016/j.watres.2016.10.073] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/23/2016] [Revised: 10/16/2016] [Accepted: 10/27/2016] [Indexed: 06/06/2023]
Abstract
A lab-scale methanolic wastewater-fed (3000 mg COD L-1) UASB reactor was operated for 235 days to evaluate the influence of the sulfidogenesis process on metabolic routes, the re-granulation of dispersed granules and long-term process performance. Various sulfidogenesis scenarios were created by stepwise decreasing the influent COD/SO42- ratio from 20 to 0.5 at a fixed organic loading rate (OLR) of 12 g COD L-1 d-1. It was shown that the conversion of methanol to methane was stable at a wide COD/SO42- range of ≥2, attaining high biogas production rate of 3.78 ± 0.32 L L-1 d-1 with efficient concurrent removal of the total COD (96.5 ± 4.4%) and sulfate (56.3 ± 13.0%). The methane content in biogas remained relatively stable at 81.5 ± 1.6% for all COD/SO42- ratios tested. The particle size of the granules was shown to clearly increase as the COD/SO42- ratios decreased. A slight linear decline was noted in the number of electrons utilized by methane producing archaea (MPA) (from 98.5 ± 0.5% to 80.0 ± 2.4%), whereas consumption by sulfate reducing bacteria (SRB) increased (from 1.5 ± 0.5% to 20.0 ± 2.4%) with the decreasing COD/SO42- ratio. According to the results of activity tests and microbial community analysis, the conversion of methanol to methane at a low COD/SO42- ratio, except from Methanomethylovorans sp., depends not only on low levels of acetoclastic and hydrogenotrophic methanogens, but also on incomplete oxidizer SRB species (e.g. Desulfovibrio sp.) that utilize H2-CO2 with acetate to mineralize the methanol. This serves to diversify the metabolic pathway of methanol. Further analysis through scanning electron microscopy (SEM) revealed that a lower COD/SO42- ratio favored the sulfidogenesis process and diversified the microbial community inside the reactor. The benefical sulfidogenesis process subsequently invoked the formation of a sufficient, rigid [-Fe-EPS-]n network (EPS: extracellular polymeric substances), binding and immobilizing the sludge, and resulting in the re-granulation of the dispersed granules.
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Affiliation(s)
- Xueqin Lu
- Department of Civil and Environmental Engineering, Graduate School of Engineering, Tohoku University, Sendai, Miyagi 980-8579, Japan.
| | - Guangyin Zhen
- Department of Civil and Environmental Engineering, Graduate School of Engineering, Tohoku University, Sendai, Miyagi 980-8579, Japan.
| | - Jialing Ni
- Department of Civil and Environmental Engineering, Graduate School of Engineering, Tohoku University, Sendai, Miyagi 980-8579, Japan
| | - Kengo Kubota
- Department of Civil and Environmental Engineering, Graduate School of Engineering, Tohoku University, Sendai, Miyagi 980-8579, Japan
| | - Yu-You Li
- Department of Civil and Environmental Engineering, Graduate School of Engineering, Tohoku University, Sendai, Miyagi 980-8579, Japan; Graduate School of Environmental Studies, Tohoku University, Sendai, Miyagi 980-8579, Japan.
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García-Depraect O, Guerrero-Barajas C, Jan-Roblero J, Ordaz A. Characterization of a Marine Microbial Community Used for Enhanced Sulfate Reduction and Copper Precipitation in a Two-Step Process. Appl Biochem Biotechnol 2016; 182:452-467. [DOI: 10.1007/s12010-016-2337-8] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2016] [Accepted: 11/16/2016] [Indexed: 11/24/2022]
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Lu X, Zhen G, Ni J, Hojo T, Kubota K, Li YY. Effect of influent COD/SO4(2-) ratios on biodegradation behaviors of starch wastewater in an upflow anaerobic sludge blanket (UASB) reactor. BIORESOURCE TECHNOLOGY 2016; 214:175-183. [PMID: 27132225 DOI: 10.1016/j.biortech.2016.04.100] [Citation(s) in RCA: 55] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/09/2016] [Revised: 04/10/2016] [Accepted: 04/20/2016] [Indexed: 06/05/2023]
Abstract
A lab-scale upflow anaerobic sludge blanket (UASB) has been run for 250days to investigate the influence of influent COD/SO4(2-) ratios on the biodegradation behavior of starch wastewater and process performance. Stepwise decreasing COD/SO4(2-) ratio enhanced sulfidogenesis, complicating starch degradation routes and improving process stability. The reactor exhibited satisfactory performance at a wide COD/SO4(2-) range ⩾2, attaining stable biogas production of 1.15-1.17LL(-1)d(-1) with efficient simultaneous removal of total COD (73.5-80.3%) and sulfate (82.6±6.4%). Adding sulfate favored sulfidogenesis process and diversified microbial community, invoking hydrolysis-acidification of starch and propionate degradation and subsequent acetoclastic methanogenesis; whereas excessively enhanced sulfidogenesis (COD/SO4(2-) ratios <2) would suppress methanogenesis through electrons competition and sulfide inhibition, deteriorating methane conversion. This research in-depth elucidated the role of sulfidogenesis in bioenergy recovery and sulfate removal, advancing the applications of UASB technology in water industry from basic science.
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Affiliation(s)
- Xueqin Lu
- Department of Civil and Environmental Engineering, Graduate School of Engineering, Tohoku University, Sendai, Miyagi 980-8579, Japan
| | - Guangyin Zhen
- National Institute for Environmental Studies, Onogawa 16-2, Tsukuba, Ibaraki 305-0053, Japan
| | - Jialing Ni
- Department of Civil and Environmental Engineering, Graduate School of Engineering, Tohoku University, Sendai, Miyagi 980-8579, Japan
| | - Toshimasa Hojo
- Department of Civil and Environmental Engineering, Graduate School of Engineering, Tohoku University, Sendai, Miyagi 980-8579, Japan
| | - Kengo Kubota
- Department of Civil and Environmental Engineering, Graduate School of Engineering, Tohoku University, Sendai, Miyagi 980-8579, Japan
| | - Yu-You Li
- Department of Civil and Environmental Engineering, Graduate School of Engineering, Tohoku University, Sendai, Miyagi 980-8579, Japan; Graduate School of Environmental Studies, Tohoku University, Sendai, Miyagi 980-8579, Japan.
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Zhou J, Zhou X, Li Y, Xing J. Bacterial communities in haloalkaliphilic sulfate-reducing bioreactors under different electron donors revealed by 16S rRNA MiSeq sequencing. JOURNAL OF HAZARDOUS MATERIALS 2015; 295:176-184. [PMID: 25897699 DOI: 10.1016/j.jhazmat.2015.04.010] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/21/2015] [Revised: 03/17/2015] [Accepted: 04/04/2015] [Indexed: 06/04/2023]
Abstract
Biological technology used to treat flue gas is useful to replace conventional treatment, but there is sulfide inhibition. However, no sulfide toxicity effect was observed in haloalkaliphilic bioreactors. The performance of the ethanol-fed bioreactor was better than that of lactate-, glucose-, and formate-fed bioreactor, respectively. To support this result strongly, Illumina MiSeq paired-end sequencing of 16S rRNA gene was applied to investigate the bacterial communities. A total of 389,971 effective sequences were obtained and all of them were assigned to 10,220 operational taxonomic units (OTUs) at a 97% similarity. Bacterial communities in the glucose-fed bioreactor showed the greatest richness and evenness. The highest relative abundance of sulfate-reducing bacteria (SRB) was found in the ethanol-fed bioreactor, which can explain why the performance of the ethanol-fed bioreactor was the best. Different types of SRB, sulfur-oxidizing bacteria, and sulfur-reducing bacteria were detected, indicating that sulfur may be cycled among these microorganisms. Because high-throughput 16S rRNA gene paired-end sequencing has improved resolution of bacterial community analysis, many rare microorganisms were detected, such as Halanaerobium, Halothiobacillus, Desulfonatronum, Syntrophobacter, and Fusibacter. 16S rRNA gene sequencing of these bacteria would provide more functional and phylogenetic information about the bacterial communities.
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Affiliation(s)
- Jiemin Zhou
- National Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences, P.O. Box 353, Beijing 100190, PR China; University of Chinese Academy of Sciences, Beijing 100049, PR China
| | - Xuemei Zhou
- 101 Institute, Ministry of Civil Affairs, Beijing 100070, PR China
| | - Yuguang Li
- 101 Institute, Ministry of Civil Affairs, Beijing 100070, PR China
| | - Jianmin Xing
- National Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences, P.O. Box 353, Beijing 100190, PR China.
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Sousa JAB, Sorokin DY, Bijmans MFM, Plugge CM, Stams AJM. Ecology and application of haloalkaliphilic anaerobic microbial communities. Appl Microbiol Biotechnol 2015; 99:9331-6. [PMID: 26359181 PMCID: PMC4628080 DOI: 10.1007/s00253-015-6937-y] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2015] [Revised: 08/09/2015] [Accepted: 08/13/2015] [Indexed: 11/28/2022]
Abstract
Haloalkaliphilic microorganisms that grow optimally at high-pH and high-salinity conditions can be found in natural environments such as soda lakes. These globally spread lakes harbour interesting anaerobic microorganisms that have the potential of being applied in existing technologies or create new opportunities. In this review, we discuss the potential application of haloalkaliphilic anaerobic microbial communities in the fermentation of lignocellulosic feedstocks material subjected to an alkaline pre-treatment, methane production and sulfur removal technology. Also, the general advantages of operation at haloalkaline conditions, such as low volatile fatty acid and sulfide toxicity, are addressed. Finally, an outlook into the main challenges like ammonia toxicity and lack of aggregation is provided.
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Affiliation(s)
- João A B Sousa
- Laboratory of Microbiology, Wageningen University, Dreijenplein 10, 6703 HB, Wageningen, The Netherlands. .,Wetsus, European Centre of Excellence for Sustainable Water Technology, Oostergoweg 9, 8911 MA, Leeuwarden, the Netherlands.
| | - Dimitry Y Sorokin
- Winogradsky Institute of Microbiology, Research Centre of Biotechnology, Russian Academy of Sciences, Moscow, Russia. .,Department of Biotechnology, Delft University of Technology, 2628 BC, Delft, the Netherlands.
| | - Martijn F M Bijmans
- Wetsus, European Centre of Excellence for Sustainable Water Technology, Oostergoweg 9, 8911 MA, Leeuwarden, the Netherlands.
| | - Caroline M Plugge
- Laboratory of Microbiology, Wageningen University, Dreijenplein 10, 6703 HB, Wageningen, The Netherlands. .,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, Dreijenplein 10, 6703 HB, Wageningen, The Netherlands. .,Department of Biological Engineering, University of Minho, Braga, Portugal.
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