1
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Johnston KAKY, van Lankveld M, de Rink R, Mol AR, Keesman KJ, Buisman CJN. Influence of oxidation-reduction potential and pH on polysulfide concentrations and chain lengths in the biological desulfurization process under haloalkaline conditions. WATER RESEARCH 2024; 259:121795. [PMID: 38889663 DOI: 10.1016/j.watres.2024.121795] [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: 03/22/2024] [Revised: 04/29/2024] [Accepted: 05/16/2024] [Indexed: 06/20/2024]
Abstract
Biological desulfurization under haloalkaline conditions has been applied worldwide to remove hydrogen sulfide (H2S) from sour gas steams. The process relies on sulfide-oxidizing bacteria (SOB) to oxidize H2S to elemental sulfur (S8), which can then be recovered and reused. Recently, a dual-reactor biological desulfurization system was implemented where an anaerobic (sulfidic) bioreactor was incorporated as an addition to a micro-oxic bioreactor, allowing for higher S8 selectivity by limiting by-product formation. The highly sulfidic bioreactor environment enabled the SOB to remove (poly)sulfides (Sx2-) in the absence of oxygen, with Sx2- speculated as a main substrate in the removal pathway, thus making it vital to understand its role in the process. The SOB are influenced by the oxidation-reduction potential (ORP) set-point of the micro-oxic bioreactor as it is used to control the product of oxidation (S8 vs. SO42-), while the uptake of Sx2- by SOB has been qualitatively linked to pH. Therefore, to quantify these effects, this work determined the concentration and speciation of Sx2- in the biological desulfurization process under various pH values and ORP set-points. The total Sx2- concentrations in the sulfidic zone increased at elevated pH (8.9) compared to low pH (< 8.0), with on average 3.3 ± 1.0 mM-S more Sx2-. Chain lengths varied, with S72- only doubling in concentration while S52- increased 9 fold, which is in contrast with observations from abiotic systems. Changes to the ORP set-point of the micro-oxic reactor did not produce substantial changes in Sx2- concentration in the sulfidic zone. This illustrates that the reduction degree of the SOB in the micro-oxic bioreactor does not enhance their ability to interact with Sx2- in the sulfidic bioreactor. This increased understanding of how both pH and ORP affect changes in Sx2- concentration and chain length can lead to improved efficiency and design of the dual-reactor biological desulfurization process.
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Affiliation(s)
- Kestral A K Y Johnston
- Wetsus, European Centre of Excellence for Sustainable Water Technology, Oostergoweg 9 8911 CE Leeuwarden, Netherlands; Environmental Technology, Wageningen University & Research, P.O. Box 17 6700 AA, Wageningen, Netherlands
| | - Mark van Lankveld
- Environmental Technology, Wageningen University & Research, P.O. Box 17 6700 AA, Wageningen, Netherlands; Paqell B.V., Reactorweg 301 3542 CE Utrecht, Netherlands
| | - Rieks de Rink
- Environmental Technology, Wageningen University & Research, P.O. Box 17 6700 AA, Wageningen, Netherlands; Paqell B.V., Reactorweg 301 3542 CE Utrecht, Netherlands
| | - Annemerel R Mol
- Environmental Technology, Wageningen University & Research, P.O. Box 17 6700 AA, Wageningen, Netherlands
| | - Karel J Keesman
- Wetsus, European Centre of Excellence for Sustainable Water Technology, Oostergoweg 9 8911 CE Leeuwarden, Netherlands; Mathematical and Statistical Methods - Biometris, Wageningen University & Research, P.O. Box 16 6700 AA, Wageningen, Netherlands.
| | - Cees J N Buisman
- Wetsus, European Centre of Excellence for Sustainable Water Technology, Oostergoweg 9 8911 CE Leeuwarden, Netherlands; Environmental Technology, Wageningen University & Research, P.O. Box 17 6700 AA, Wageningen, Netherlands
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2
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Wang X, Li X, Hao P, Duan X, Gao Y, Liang X. Cellulosimicrobium sp. Strain L1: A Study on the Optimization of the Conditions and Performance of a Combined Biological Trickling Filter for Hydrogen Sulfide Degradation. Microorganisms 2024; 12:1513. [PMID: 39203356 PMCID: PMC11356333 DOI: 10.3390/microorganisms12081513] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2024] [Revised: 07/12/2024] [Accepted: 07/18/2024] [Indexed: 09/03/2024] Open
Abstract
Sulfide is a toxic and hazardous substance in the agricultural environment, which can cause damage to humans and livestock when exposed to large amounts of air. In this study, we performed one-factor optimization of the culture conditions and culture fractions of the Cellulosimicrobium sp. strain L1 and combined it with a biological trickling filter cell for the degradation of hydrogen sulfide for 24 consecutive days. The degradation effect of strain L1 and the biological trickling filter (BTF) on hydrogen sulfide was investigated, and the changes in intermediate products in the degradation process were briefly analyzed. The results showed that strain L1 had the highest conversion efficiency when incubated with 3 g/L sucrose as the carbon source and 1 g/L NH4Cl as the nitrogen source at a temperature of 35 °C, an initial pH of 5, and a NaCl concentration of 1%. The concentration of thiosulfate increased and then decreased during the degradation process, and the concentration of sulfate increased continuously. When strain L1 was applied to the biological trickling filter, it could degrade 359.53 mg/m3 of H2S. This study provides a deeper understanding of sulfide degradation in biological trickling filters and helps promote the development of desulfurization technology and the treatment of malodorous gasses produced by the accumulation of large quantities of livestock manure.
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Affiliation(s)
- Xuechun Wang
- College of Veterinary Medicine, Jilin Agricultural University, Changchun 130118, China; (X.W.)
| | - Xintian Li
- College of Veterinary Medicine, Jilin Agricultural University, Changchun 130118, China; (X.W.)
| | - Peng Hao
- College of Veterinary Medicine, Jilin Agricultural University, Changchun 130118, China; (X.W.)
| | - Xinran Duan
- College of Veterinary Medicine, Jilin Agricultural University, Changchun 130118, China; (X.W.)
| | - Yunhang Gao
- College of Veterinary Medicine, Jilin Agricultural University, Changchun 130118, China; (X.W.)
| | - Xiaojun Liang
- Institute of Animal Science, Ningxia Academy of Agriculture and Forestry, Yinchuan 750002, China
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3
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Han YL, Wu ZC, Rittmann BE, Zhao HP. Achieving Long-Term Stability of Partial Nitrification and Autotrophic Denitrification in an MABR via Sulfide Dosing. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2024; 58:12532-12541. [PMID: 38940696 DOI: 10.1021/acs.est.4c04007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/29/2024]
Abstract
While partial nitrification (PN) has the potential to reduce energy for aeration, it has proven to be unstable when treating low-strength wastewater. This study introduces an innovative combined strategy incorporating a low rate of oxygen supply, pH control, and sulfide addition to selectively inhibit nitrite-oxidizing bacteria (NOB). This strategy led to a stable PN in a laboratory-scale membrane aerated biofilm reactor (MABR). Over a period of 260 days, the nitrite accumulation ratio exceeded 60% when treating synthetic sewage containing 50 mg NH4+-N/L. Through in situ activity testing and high-throughput sequencing, the combined strategy led to low levels of nitrite-oxidation activity (<5.5 mg N/m2 h), Nitrospira species (relative abundance <1%), and transcription of nitrite-oxidation genes (undetectable). The addition of sulfide led to simultaneous PN and autotrophic denitrification in the single-stage MABR, resulting in over 60% total inorganic nitrogen removal. Sulfur-based autotrophic denitrification consumed nitrite and inhibited NOB conversion of nitrite to nitrate. The combined strategy has potential to be applied in large-scale sewage treatment and deserves further exploration.
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Affiliation(s)
- Yu-Lin Han
- MOE Key Lab of Environmental Remediation and Ecosystem Health, College of Environmental and Resource Science, Zhejiang University, Hangzhou 310058, China
| | - Zhen-Chuan Wu
- MOE Key Lab of Environmental Remediation and Ecosystem Health, College of Environmental and Resource Science, Zhejiang University, Hangzhou 310058, China
| | - Bruce E Rittmann
- Swette Center for Environmental Biotechnology, Biodesign Institute at Arizona State University, P.O. Box 875701, Tempe, Arizona 85287-5701, United States
| | - He-Ping Zhao
- MOE Key Lab of Environmental Remediation and Ecosystem Health, College of Environmental and Resource Science, Zhejiang University, Hangzhou 310058, China
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4
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Tang L, Huang J, Zhuang C, Yang X, Sun L, Lu H. Biogenic sulfur recovery from sulfate-laden antibiotic production wastewater using a single-chamber up-flow bioelectrochemical reactor. WATER RESEARCH 2024; 256:121590. [PMID: 38631241 DOI: 10.1016/j.watres.2024.121590] [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: 12/21/2023] [Revised: 03/31/2024] [Accepted: 04/08/2024] [Indexed: 04/19/2024]
Abstract
The high-concentration sulfate (SO42-) in the antibiotic production wastewater hinders the anerobic methanogenic process and also proposes possible environmental risk. In this study, a novel single-chamber up-flow anaerobic bioelectrochemical reactor (UBER) was designed to realize simultaneous SO42- removal and elemental sulfur (S0) recovery. With the carbon felt, the cathode was installed underneath and the anode above to meet the different biological niches for sulfate reducing bacteria (SRB) and sulfur oxidizing bacteria (SOB). The bio-anode UBER (B-UBER) demonstrated a much higher average SO42- removal rate (SRR) of 113.2 ± 5.7 mg SO42--S L-1 d-1 coupled with a S0 production rate (SPR) of 54.4 ± 5.8 mg S0-S L-1 d-1 at the optimal voltage of 0.8 V than that in the abio-anode UBER (control reactor) (SRR = 86.6 ± 13.4 mg SO42--S L-1 d-1; SPR = 25.5 ± 9.7 mg S0-S L-1 d-1) under long-term operation. A large amount of biogenic S0 (about 72.2 mg g-1 VSS) was recovered in the B-UBER. The bio-anode, dominated by Thiovirga (SOB genus) and Acinetobacter (electrochemically active bacteria genus), exhibited a higher current density, lower overpotential, and lower internal resistance. C-type cytochromes mainly served as the crucial electron transfer mediator for both direct and indirect electron transfer, so that significantly increasing electron transfer capacity and biogenic S0 recovery. The reaction pathways of the sulfur transformation in the B-UBER were hypothesized that SRB utilized acetate as the main electron donor for SO42- reduction in the cathode zone and SOB transferred electrons to the anode or oxygen to produce biogenic S0 in the anode zone. This study proved a new pathway for biogenic S0 recovery and sulfate removal from sulfate-laden antibiotic production wastewater using a well-designed single-chamber bioelectrochemical reactor.
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Affiliation(s)
- Lan Tang
- School of Environmental Science and Engineering, Sun Yat-sen University, Guangzhou, 510275, China; Guangdong Provincial Key Laboratory of Environmental Pollution Control and Remediation Technology (Sun Yat-sen University), Guangzhou, 510275, China
| | - Jiamei Huang
- School of Environmental Science and Engineering, Sun Yat-sen University, Guangzhou, 510275, China; Guangdong Provincial Key Laboratory of Environmental Pollution Control and Remediation Technology (Sun Yat-sen University), Guangzhou, 510275, China
| | - Chuanyan Zhuang
- School of Environmental Science and Engineering, Sun Yat-sen University, Guangzhou, 510275, China; Guangdong Provincial Key Laboratory of Environmental Pollution Control and Remediation Technology (Sun Yat-sen University), Guangzhou, 510275, China
| | - Xiaojing Yang
- School of Environmental Science and Engineering, Sun Yat-sen University, Guangzhou, 510275, China; Guangdong Provincial Key Laboratory of Environmental Pollution Control and Remediation Technology (Sun Yat-sen University), Guangzhou, 510275, China
| | - Lianpeng Sun
- School of Environmental Science and Engineering, Sun Yat-sen University, Guangzhou, 510275, China; Guangdong Provincial Key Laboratory of Environmental Pollution Control and Remediation Technology (Sun Yat-sen University), Guangzhou, 510275, China
| | - Hui Lu
- School of Environmental Science and Engineering, Sun Yat-sen University, Guangzhou, 510275, China; Guangdong Provincial Key Laboratory of Environmental Pollution Control and Remediation Technology (Sun Yat-sen University), Guangzhou, 510275, China.
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5
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Johnston KKY, van Lankveld M, de Rink R, Roman P, Klok JBM, Mol AR, Keesman KJ, Buisman CJN. Polysulfide Concentration and Chain Length in the Biological Desulfurization Process: Effect of Biomass Concentration and the Sulfide Loading Rate. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2023; 57:13530-13540. [PMID: 37639370 PMCID: PMC10501124 DOI: 10.1021/acs.est.3c03017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/21/2023] [Revised: 08/11/2023] [Accepted: 08/11/2023] [Indexed: 08/31/2023]
Abstract
Removal of hydrogen sulfide (H2S) can be achieved using the sustainable biological desulfurization process, where H2S is converted to elemental sulfur using sulfide-oxidizing bacteria (SOB). A dual-bioreactor process was recently developed where an anaerobic (sulfidic) bioreactor was used between the absorber column and micro-oxic bioreactor. In the absorber column and sulfidic bioreactor, polysulfides (Sx2-) are formed due to the chemical equilibrium between H2S and sulfur (S8). Sx2- is thought to be the intermediate for SOB to produce sulfur via H2S oxidation. In this study, we quantify Sx2-, determine their chain-length distribution under high H2S loading rates, and elucidate the relationship between biomass and the observed biological removal of sulfides under anaerobic conditions. A linear relationship was observed between Sx2- concentration and H2S loading rates at a constant biomass concentration. Increasing biomass concentrations resulted in a lower measured Sx2- concentration at similar H2S loading rates in the sulfidic bioreactor. Sx2- of chain length 6 (S62-) showed a substantial decrease at higher biomass concentrations. Identifying Sx2- concentrations and their chain lengths as a function of biomass concentration and the sulfide loading rate is key in understanding and controlling sulfide uptake by the SOB. This knowledge will contribute to a better understanding of how to reach and maintain a high selectivity for S8 formation in the dual-reactor biological desulfurization process.
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Affiliation(s)
- Kestral
A. K. Y. Johnston
- Environmental
Technology, Wageningen University &
Research, P.O. Box 17, 6700
AA Wageningen, The
Netherlands
- Wetsus,
European Centre of Excellence for Sustainable Water Technology, Oostergoweg 9, 8911 AD Leeuwarden, The Netherlands
| | - Mark van Lankveld
- Environmental
Technology, Wageningen University &
Research, P.O. Box 17, 6700
AA Wageningen, The
Netherlands
- Paqell
B.V., Reactorweg 301, 3542 AD Utrecht, The Netherlands
| | - Rieks de Rink
- Environmental
Technology, Wageningen University &
Research, P.O. Box 17, 6700
AA Wageningen, The
Netherlands
- Paqell
B.V., Reactorweg 301, 3542 AD Utrecht, The Netherlands
| | - Pawel Roman
- Wetsus,
European Centre of Excellence for Sustainable Water Technology, Oostergoweg 9, 8911 AD Leeuwarden, The Netherlands
| | - Johannes B. M. Klok
- Wetsus,
European Centre of Excellence for Sustainable Water Technology, Oostergoweg 9, 8911 AD Leeuwarden, The Netherlands
| | - Annemerel R. Mol
- Environmental
Technology, Wageningen University &
Research, P.O. Box 17, 6700
AA Wageningen, The
Netherlands
| | - Karel J. Keesman
- Wetsus,
European Centre of Excellence for Sustainable Water Technology, Oostergoweg 9, 8911 AD Leeuwarden, The Netherlands
- Mathematical
and Statistical Methods − Biometris, Wageningen University & Research, P.O. Box 16, 6700 AA Wageningen, The Netherlands
| | - Cees J. N. Buisman
- Environmental
Technology, Wageningen University &
Research, P.O. Box 17, 6700
AA Wageningen, The
Netherlands
- Wetsus,
European Centre of Excellence for Sustainable Water Technology, Oostergoweg 9, 8911 AD Leeuwarden, The Netherlands
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6
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Linssen R, Slinkert T, Buisman CJN, Klok JBM, Ter Heijne A. Anaerobic sulphide removal by haloalkaline sulphide oxidising bacteria. BIORESOURCE TECHNOLOGY 2023; 369:128435. [PMID: 36481375 DOI: 10.1016/j.biortech.2022.128435] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/20/2022] [Revised: 11/23/2022] [Accepted: 11/30/2022] [Indexed: 06/17/2023]
Abstract
Sulphide is a toxic and corrosive compound and requires removal from waste streams. Recent discoveries show that sulphide oxidising bacteria (SOB) from modern desulphurisation plants are able to spatially separate sulphide removal and oxygen reduction when exposed to intermittent anaerobic and aerobic environments. Here, SOB act as electron shuttles between electron donor and acceptor. The underlying mechanisms for electron shuttling are of yet unknown. To investigate the anaerobic sulphide removal of SOB, batch experiments and mathematical models were applied. The sulphide removal capacity decreased at increasing biomass concentrations. At 0.6 mgN/L SOB could remove up to 8 mgS/mgN in 30 min. It was found that biological activity determines sulphide removal, alongside chemical processes. Anaerobic oxidation of electron carriers was determined to only explain 0.1% of charge storage, where irreversible cleavage of long chain polysulphides could explain full sulphide storage. Different sulphide removal and intracellular storage processes are postulated.
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Affiliation(s)
- Rikke Linssen
- Environmental Technology, Wageningen University, P.O. Box 17, Wageningen, The Netherlands
| | - Thomas Slinkert
- Environmental Technology, Wageningen University, P.O. Box 17, Wageningen, The Netherlands
| | - Cees J N Buisman
- Environmental Technology, Wageningen University, P.O. Box 17, Wageningen, The Netherlands; Wetsus, European Centre of Excellence for Sustainable Water Technology, Oostergoweg 9, Leeuwarden, The Netherlands
| | - Johannes B M Klok
- Environmental Technology, Wageningen University, P.O. Box 17, Wageningen, The Netherlands; Wetsus, European Centre of Excellence for Sustainable Water Technology, Oostergoweg 9, Leeuwarden, The Netherlands; Paqell B.V., Reactorweg 301, 3542 AD Utrecht, The Netherlands
| | - Annemiek Ter Heijne
- Environmental Technology, Wageningen University, P.O. Box 17, Wageningen, The Netherlands.
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7
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Cai J, Qaisar M, Chen B, Wang K, Wang R, Lou J. Deciphering the roles of suspended sludge and fixed sludge at electrode in microbial fuel cell accomplishing sulfide-based autotrophic denitrification. Biochem Eng J 2023. [DOI: 10.1016/j.bej.2023.108874] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/24/2023]
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8
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Mol AR, Pruim SD, de Korte M, Meuwissen DJM, van der Weijden RD, Klok JBM, Keesman KJ, Buisman CJN. Removal of small elemental sulfur particles by polysulfide formation in a sulfidic reactor. WATER RESEARCH 2022; 227:119296. [PMID: 36351351 DOI: 10.1016/j.watres.2022.119296] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/15/2022] [Revised: 10/22/2022] [Accepted: 10/25/2022] [Indexed: 06/16/2023]
Abstract
For over 30 years, biological gas desulfurization under halo-alkaline conditions has been studied and optimized. This technology is currently applied in already 270 commercial installations worldwide. Sulfur particle separation, however, remains a challenge; a fraction of sulfur particles is often too small for liquid-solid separation with conventional separation technology. In this article, we report the effects of a novel sulfidic reactor, inserted in the conventional process set-up, on sulfur particle size and morphology. In the sulfidic reactor polysulfide is produced by the reaction of elemental sulfur particles and sulfide, which is again converted to elemental sulfur in a gas-lift reactor. We analyzed sulfur particles produced in continuous, long term lab-scale reactor experiments under various sulfide concentrations and sulfidic retention times. The analyses were performed with laser diffraction particle size analysis and light microscopy. These show that the smallest particles (< 1 µm) have mostly disappeared under the highest sulfide concentration (4.1 mM) and sulfidic retention time (45 min). Under these conditions also agglomeration of sulfur particles was promoted. Model calculations with thermodynamic and previously derived kinetic data on polysulfide formation confirm the experimental data on the removal of the smallest particles. Under the 'highest sulfidic pressure', the model predicts that equilibrium conditions are reached between sulfur, sulfide and polysulfide and that 100% of the sulfur particles <1 µm are dissolved by the (autocatalytic) formation of polysulfides. These experiments and modeling results demonstrate that the insertion of a novel sulfidic reactor in the conventional process set-up promotes the removal of the smallest individual sulfur particles and promotes the production of sulfur agglomerates. The novel sulfidic reactor is therefore a promising process addition with the potential to improve process operation, sulfur separation and sulfur recovery.
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Affiliation(s)
- Annemerel R Mol
- Environmental Technology, Wageningen University & Research, P.O. Box 17, 6700 AA, Wageningen, the Netherlands; Paqell B.V, Reactorweg 301, 3542 CE Utrecht, the Netherlands.
| | - Sebastian D Pruim
- Environmental Technology, Wageningen University & Research, P.O. Box 17, 6700 AA, Wageningen, the Netherlands
| | - Milan de Korte
- Mathematical and Statistical Methods - Biometris, Wageningen University and Research, P.O. Box 16, 6700 AA Wageningen, the Netherlands
| | - Derek J M Meuwissen
- Environmental Technology, Wageningen University & Research, P.O. Box 17, 6700 AA, Wageningen, the Netherlands
| | - Renata D van der Weijden
- Environmental Technology, Wageningen University & Research, P.O. Box 17, 6700 AA, Wageningen, the Netherlands; Wetsus, European Centre of Excellence for Sustainable Water Technology, P.O: Box 1113, 8900 CC Leeuwarden, the Netherlands
| | - Johannes B M Klok
- Environmental Technology, Wageningen University & Research, P.O. Box 17, 6700 AA, Wageningen, the Netherlands; Paqell B.V, Reactorweg 301, 3542 CE Utrecht, the Netherlands; Wetsus, European Centre of Excellence for Sustainable Water Technology, P.O: Box 1113, 8900 CC Leeuwarden, the Netherlands
| | - Karel J Keesman
- Mathematical and Statistical Methods - Biometris, Wageningen University and Research, P.O. Box 16, 6700 AA Wageningen, the Netherlands; Wetsus, European Centre of Excellence for Sustainable Water Technology, P.O: Box 1113, 8900 CC Leeuwarden, the Netherlands
| | - Cees J N Buisman
- Environmental Technology, Wageningen University & Research, P.O. Box 17, 6700 AA, Wageningen, the Netherlands; Wetsus, European Centre of Excellence for Sustainable Water Technology, P.O: Box 1113, 8900 CC Leeuwarden, the Netherlands
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9
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Liu Z, Yang M, Mu T, Liu J, Chen L, Miao D, Xing J. Organic layer characteristics and microbial utilization of the biosulfur globules produced by haloalkaliphilic Thioalkalivibrio versutus D301 during biological desulfurization. Extremophiles 2022; 26:27. [PMID: 35962820 DOI: 10.1007/s00792-022-01274-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2021] [Accepted: 07/13/2022] [Indexed: 11/26/2022]
Abstract
The haloalkaliphilic genus Thioalkalivibrio, widely used in bio-desulfurization, can oxidize H2S to So, which is excreted outside cells in the form of biosulfur globules. As by-product of bio-desulfurization, information on biosulfur globules is still very scant, which limits its high-value utilization. In this paper, the characteristics of biosulfur globules produced by Thioalkalivibrio versutus D301 and the possibility of cultivating sulfur-oxidizing bacteria as a high biological-activity sulfur source were studied. The sulfur element in the biosulfur globules existed in the form α-S8, which was similar to chemical sulfur. The biosulfur globule was wrapped with an organic layer composed of polysaccharides and proteins. The composition of this organic layer could change. In the formation stage of biosulfur globules, the organic layer was dominated by polysaccharides, and in later stage, proteins became the main component. We speculated that the organic layer was mainly formed by the passive adsorption of organic matter secreted by cells. The existence of organic layer endowed biosulfur with better bioavailability. Compared with those found using chemical sulfur, the growth rates of Acidithiobacillus thiooxidans ATCC 19377T, Thiomicrospira microaerophila BDL05 and Thioalkalibacter halophilus BDH06 using biosulfur increased several folds to an order of magnitude, indicating that biosulfur was a good sulfur source for cultivating sulfur-oxidizing bacteria.
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Affiliation(s)
- Zhixia Liu
- CAS Key Laboratory of Green Process and Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing, 100190, China
- School of Biology and Engineering, Hebei University of Science and Technology, Shijiazhuang, 050018, China
| | - Maohua Yang
- CAS Key Laboratory of Green Process and Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing, 100190, China.
| | - Tingzhen Mu
- CAS Key Laboratory of Green Process and Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing, 100190, China
| | - Jinlong Liu
- School of Biology and Engineering, Hebei University of Science and Technology, Shijiazhuang, 050018, China
| | - Linxu Chen
- State Key Laboratory of Microbial Technology, Shandong University, Qingdao, 266237, China
| | - Delu Miao
- CAS Key Laboratory of Green Process and Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing, 100190, China
| | - Jianmin Xing
- CAS Key Laboratory of Green Process and Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing, 100190, China
- College of Chemical Engineering, University of Chinese Academy of Sciences, Beijing, 100049, China
- Chemistry and Chemical Engineering Guangdong Laboratory, Shantou, 515031, China
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10
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Peh S, Mu T, Zhong W, Yang M, Chen Z, Yang G, Zhao X, Sharshar MM, Samak NA, Xing J. Enhanced Biodesulfurization with a Microbubble Strategy in an Airlift Bioreactor with Haloalkaliphilic Bacterium Thioalkalivibrio versutus D306. ACS OMEGA 2022; 7:15518-15528. [PMID: 35571827 PMCID: PMC9096976 DOI: 10.1021/acsomega.2c00258] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/13/2022] [Accepted: 03/31/2022] [Indexed: 05/05/2023]
Abstract
Biodesulfurization under haloalkaline conditions requires limiting oxygen and additional energy in the system to deliver high mixing quality control. This study considers biodesulfurization in an airlift bioreactor with uniform microbubbles generated by a fluidic oscillation aeration system to enhance the biological desulfurization process and its hydrodynamics. Fluidic oscillation aeration in an airlift bioreactor requires minimal energy input for microbubble generation. This aeration system produced 81.87% smaller average microbubble size than the direct aeration system in a bubble column bioreactor. The biodesulfurization phase achieved a yield of 94.94% biological sulfur, 84.91% biological sulfur selectivity, and 5.06% sulfur oxidation performance in the airlift bioreactor with the microbubble strategy. The biodesulfurization conditions of thiosulfate via Thioalkalivibrio versutus D306 are revealed in this study. The biodesulfurization conditions in the airlift bioreactor with the fluidic oscillation aeration system resulted in the complete conversion of thiosulfate with 27.64% less sulfate production and 10.34% more biological sulfur production than in the bubble column bioreactor. Therefore, pleasant hydrodynamics via an airlift bioreactor mechanism with microbubbles is favored for biodesulfurization under haloalkaline conditions.
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Affiliation(s)
- Sumit Peh
- CAS
Key Laboratory of Green Process and Engineering, State Key Laboratory
of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences (CAS), Beijing 100190, China
- College
of Chemical Engineering, University of Chinese
Academy of Sciences, Beijing 100049, P.R. China
| | - Tingzhen Mu
- CAS
Key Laboratory of Green Process and Engineering, State Key Laboratory
of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences (CAS), Beijing 100190, China
| | - Wei Zhong
- CAS
Key Laboratory of Green Process and Engineering, State Key Laboratory
of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences (CAS), Beijing 100190, China
- College
of Chemical Engineering, University of Chinese
Academy of Sciences, Beijing 100049, P.R. China
| | - Maohua Yang
- CAS
Key Laboratory of Green Process and Engineering, State Key Laboratory
of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences (CAS), Beijing 100190, China
| | - Zheng Chen
- CAS
Key Laboratory of Green Process and Engineering, State Key Laboratory
of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences (CAS), Beijing 100190, China
- College
of Chemical Engineering, University of Chinese
Academy of Sciences, Beijing 100049, P.R. China
| | - Gama Yang
- CAS
Key Laboratory of Green Process and Engineering, State Key Laboratory
of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences (CAS), Beijing 100190, China
- College
of Chemical Engineering, University of Chinese
Academy of Sciences, Beijing 100049, P.R. China
| | - Xuhao Zhao
- CAS
Key Laboratory of Green Process and Engineering, State Key Laboratory
of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences (CAS), Beijing 100190, China
- College
of Chemical Engineering, University of Chinese
Academy of Sciences, Beijing 100049, P.R. China
| | - Moustafa Mohamed Sharshar
- CAS
Key Laboratory of Green Process and Engineering, State Key Laboratory
of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences (CAS), Beijing 100190, China
- College
of Chemical Engineering, University of Chinese
Academy of Sciences, Beijing 100049, P.R. China
| | - Nadia A. Samak
- CAS
Key Laboratory of Green Process and Engineering, State Key Laboratory
of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences (CAS), Beijing 100190, China
- College
of Chemical Engineering, University of Chinese
Academy of Sciences, Beijing 100049, P.R. China
- Processes
Design and Development Department, Egyptian
Petroleum Research Institute, Nasr
City 11727, Cairo, Egypt
| | - Jianmin Xing
- CAS
Key Laboratory of Green Process and Engineering, State Key Laboratory
of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences (CAS), Beijing 100190, China
- College
of Chemical Engineering, University of Chinese
Academy of Sciences, Beijing 100049, P.R. China
- Chemistry
and Chemical Engineering Guangdong Laboratory, Shantou 515031, P.R. China
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11
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Chen Z, Yang G, Mu T, Yang M, Samak NA, Peh S, Jia Y, Hao X, Zhao X, Xing J. Rate-based model for predicting and evaluating H2S absorption in the haloalkaliphilic biological desulfurization process. J IND ENG CHEM 2022. [DOI: 10.1016/j.jiec.2022.03.020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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12
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de Rink R, B Lavender M, Liu D, Klok JBM, Sorokin DY, Ter Heijne A, Buisman CJN. Continuous electron shuttling by sulfide oxidizing bacteria as a novel strategy to produce electric current. JOURNAL OF HAZARDOUS MATERIALS 2022; 424:127358. [PMID: 34879559 DOI: 10.1016/j.jhazmat.2021.127358] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/20/2021] [Revised: 08/30/2021] [Accepted: 09/24/2021] [Indexed: 06/13/2023]
Abstract
Sulfide oxidizing bacteria (SOB) are widely applied in industry to convert toxic H2S into elemental sulfur. Haloalkaliphilic planktonic SOB can remove sulfide from solution under anaerobic conditions (SOB are 'charged'), and release electrons at an electrode (discharge of SOB). The effect of this electron shuttling on product formation and biomass growth is not known. Here, we study and demonstrate a continuous process in which SOB remove sulfide from solution in an anaerobic 'uptake chamber', and shuttle these electrons to the anode of an electrochemical cell, in the absence of dissolved sulfide. Two experiments over 31 and 41 days were performed. At a sulfide loading rate of 1.1 mmolS/day, electricity was produced continuously (3 A/m2) without dissolved sulfide in the anolyte. The main end product was sulfate (56% in experiment 1% and 78% in experiment 2), and 87% and 77% of the electrons in sulfide were recovered as electricity. It was found that the current density was dependent on the sulfide loading rate and not on the anode potential. Biological growth occurred, mainly at the anode as biofilm, in which the deltaproteobacterial genus Desulfurivibrio was dominating. Our results demonstrate a novel strategy to produce electricity from sulfide in an electrochemical system.
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Affiliation(s)
- Rieks de Rink
- Environmental Technology, Wageningen University, P.O. Box 17, Wageningen, The Netherlands; Paqell B.V., Reactorweg 301, 3542 AD Utrecht, The Netherlands
| | - Micaela B Lavender
- Environmental Technology, Wageningen University, P.O. Box 17, Wageningen, The Netherlands
| | - Dandan Liu
- Paqell B.V., Reactorweg 301, 3542 AD Utrecht, The Netherlands
| | - Johannes B M Klok
- Environmental Technology, Wageningen University, P.O. Box 17, Wageningen, The Netherlands; Paqell B.V., Reactorweg 301, 3542 AD Utrecht, The Netherlands; Wetsus, European Centre of Excellence for Sustainable Water Technology, Oostergoweg 9, Leeuwarden, The Netherlands
| | - Dimitry Y Sorokin
- Winogradsky Institute of Microbiology, Research Centre of Biotechnology RAS, Leninskii Prospect, 33/2, 119071 Moscow, Russia; Department of Biotechnology, Delft University of Technology, Van der Maasweg 9, 2629HZ Delft, The Netherlands
| | - Annemiek Ter Heijne
- Environmental Technology, Wageningen University, P.O. Box 17, Wageningen, The Netherlands.
| | - Cees J N Buisman
- Environmental Technology, Wageningen University, P.O. Box 17, Wageningen, The Netherlands; Wetsus, European Centre of Excellence for Sustainable Water Technology, Oostergoweg 9, Leeuwarden, The Netherlands
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13
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Ai T, Zou L, Cheng H, Luo Z, Al-Rekabi WS, Li H, Fu Q, He Q, Ai H. The potential of electrotrophic denitrification coupled with sulfur recycle in MFC and its responses to COD/SO 42- ratios. CHEMOSPHERE 2022; 287:132149. [PMID: 34496337 DOI: 10.1016/j.chemosphere.2021.132149] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/08/2021] [Revised: 07/27/2021] [Accepted: 09/01/2021] [Indexed: 06/13/2023]
Abstract
Electrotrophic denitrification is a promising novel nitrogen removal technique. In this study, the performance and the mechanism of electrotrophic denitrification coupled with sulfate-sulfide cycle were investigated under different anodic influent COD/SO42- ratios. The results showed that electrotrophic denitrification contributed to more than 22% total nitrogen removal in cathode chamber. Higher COD/SO42- ratios would deteriorate the sulfate reduction but enhance methane production. Further mass balance indicated that the electron flow utilized by methanogenic archaea (MA) increased while that utilized by sulfate-reducing bacteria (SRB) decreased as the COD/SO42- ratio increased from 0.44 to 1.11. However, higher COD/SO42- ratios would produce more electrons to strengthen electrotrophic denitrification. Microbial community analysis showed that the biocathode was predominantly covered by Thiobacillus that encoded with narG gene. These findings collectively suggest that electrotrophic denitrification could be a sustainable approach to simultaneously remove COD and nitrogen under suitable COD/SO42- ratio based on sulfur cycle in wastewater.
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Affiliation(s)
- Tao Ai
- Key Laboratory of the Three Gorges Reservoir Region's Eco-Environment, Ministry of Education, Chongqing University, Chongqing, 400045, PR China
| | - Linzhi Zou
- Key Laboratory of the Three Gorges Reservoir Region's Eco-Environment, Ministry of Education, Chongqing University, Chongqing, 400045, PR China
| | - Hong Cheng
- Key Laboratory of the Three Gorges Reservoir Region's Eco-Environment, Ministry of Education, Chongqing University, Chongqing, 400045, PR China
| | - Zhongwu Luo
- 3rd Construction Co., LTD of China Construction 5th Engineering Bureau, PR China
| | - Wisam S Al-Rekabi
- Civil Engineering Department, College of Engineering, University of Basrah, Iraq
| | - Hua Li
- Chongqing Water Group Co. Ltd, PR China
| | - Qibin Fu
- Key Laboratory of the Three Gorges Reservoir Region's Eco-Environment, Ministry of Education, Chongqing University, Chongqing, 400045, PR China
| | - Qiang He
- Key Laboratory of the Three Gorges Reservoir Region's Eco-Environment, Ministry of Education, Chongqing University, Chongqing, 400045, PR China
| | - Hainan Ai
- Key Laboratory of the Three Gorges Reservoir Region's Eco-Environment, Ministry of Education, Chongqing University, Chongqing, 400045, PR China.
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14
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Mol A, Meuwissen DJM, Pruim SD, Zhou C, van Vught V, Klok JBM, Buisman CJN, van der Weijden RD. Novel Agglomeration Strategy for Elemental Sulfur Produced during Biological Gas Desulfurization. ACS OMEGA 2021; 6:27913-27923. [PMID: 34722991 PMCID: PMC8554788 DOI: 10.1021/acsomega.1c03701] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/13/2021] [Accepted: 09/28/2021] [Indexed: 06/13/2023]
Abstract
This article presents a novel crystal agglomeration strategy for elemental sulfur (S) produced during biological desulfurization (BD). A key element is the nucleophilic dissolution of S by sulfide (HS-) to polysulfides (S x 2-), which was enhanced by a sulfide-rich, anoxic reactor. This study demonstrates that with enhanced S x 2- formation, crystal agglomerates are formed with a uniform size (14.7 ± 3.1 μm). In contrast, with minimal S x 2- formation, particle size fluctuates markedly (5.6 ± 5.9 μm) due to the presence of agglomerates and single crystals. Microscopic analysis showed that the uniformly sized agglomerates had an irregular structure, whereas the loose particles and agglomerates were more defined and bipyramidal. The irregular agglomerates are explained by dissolution of S by (poly)sulfides, which likely changed the crystal surface structure and disrupted crystal growth. Furthermore, S from S x 2- appeared to form at least 5× faster than from HS- based on the average S x 2- chain length of x ≈ 5, thereby stimulating particle agglomeration. In addition, microscopy suggested that S crystal growth proceeded via amorphous S globules. Our findings imply that the crystallization product is controlled by the balance between dissolution and formation of S. This new insight has a strong potential to prevent poor S settleability in BD.
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Affiliation(s)
- Annemerel
R. Mol
- Environmental
Technology, Wageningen University &
Research, P.O. Box 17, 6700 AA Wageningen, The Netherlands
- Paqell
B.V., Reactorweg 301, 3542 AD Utrecht, The Netherlands
| | - Derek J. M. Meuwissen
- Environmental
Technology, Wageningen University &
Research, P.O. Box 17, 6700 AA Wageningen, The Netherlands
| | - Sebastian D. Pruim
- Environmental
Technology, Wageningen University &
Research, P.O. Box 17, 6700 AA Wageningen, The Netherlands
| | - Chenyu Zhou
- Environmental
Technology, Wageningen University &
Research, P.O. Box 17, 6700 AA Wageningen, The Netherlands
| | - Vincent van Vught
- Environmental
Technology, Wageningen University &
Research, P.O. Box 17, 6700 AA Wageningen, The Netherlands
| | - Johannes B. M. Klok
- Environmental
Technology, Wageningen University &
Research, P.O. Box 17, 6700 AA Wageningen, The Netherlands
- Paqell
B.V., Reactorweg 301, 3542 AD Utrecht, The Netherlands
- Wetsus,
European Centre of Excellence for Sustainable Water Technology, P.O. Box 1113, 8900 CC Leeuwarden, The Netherlands
| | - Cees J. N. Buisman
- Environmental
Technology, Wageningen University &
Research, P.O. Box 17, 6700 AA Wageningen, The Netherlands
- Wetsus,
European Centre of Excellence for Sustainable Water Technology, P.O. Box 1113, 8900 CC Leeuwarden, The Netherlands
| | - Renata D. van der Weijden
- Environmental
Technology, Wageningen University &
Research, P.O. Box 17, 6700 AA Wageningen, The Netherlands
- Wetsus,
European Centre of Excellence for Sustainable Water Technology, P.O. Box 1113, 8900 CC Leeuwarden, The Netherlands
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15
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Hao X, Mu T, Mohammed Sharshar M, Yang M, Zhong W, Jia Y, Chen Z, Yang G, Xing J. Revealing sulfate role in empowering the sulfur-oxidizing capacity of Thioalkalivibrio versutus D301 for an enhanced desulfurization process. BIORESOURCE TECHNOLOGY 2021; 337:125367. [PMID: 34139561 DOI: 10.1016/j.biortech.2021.125367] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/15/2021] [Revised: 05/28/2021] [Accepted: 05/29/2021] [Indexed: 06/12/2023]
Abstract
Haloalkaliphilic Thioalkalivibrio, a dominant genus for sulfide removal, has attracted growing interest. However, the bacterial biological response to this process's final product, sulfate, has not been well-studied. Here, thiosulfate oxidation and sulfur formation by T. versutus D301 were being enhanced with increasing sulfate supply. With the addition of 0.73 M sulfate, the thiosulfate utilization rate and sulfur production were improved by 68.1% and 120.1% compared with carbonate-grown control at the same salinity (1.8 M). For sulfate-grown cells, based on metabolic analysis, the downregulation of central carbon metabolism indicated that sulfate triggered a decrease in energy conservation efficiency. Additionally, the gene expression analysis further revealed that sulfate induced the inhibition of sulfur to sulfate oxidation, causing the upregulation of thiosulfate to sulfur oxidation for providing cells with additional energy. This study enhances researchers' understanding regarding the sulfate effect on the bio-desulfurization process and presents a new perspective of optimizing the biotechniques.
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Affiliation(s)
- Xuemi Hao
- CAS Key Laboratory of Green Process and Engineering, State Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, PR China; College of Chemical Engineering, University of Chinese Academy of Sciences, Beijing 100049, PR China
| | - Tingzhen Mu
- CAS Key Laboratory of Green Process and Engineering, State Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, PR China
| | | | - Maohua Yang
- CAS Key Laboratory of Green Process and Engineering, State Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, PR China
| | - Wei Zhong
- Shenzhen Key Laboratory of Synthetic Genomics, Guangdong Provincial Key Laboratory of Synthetic Genomics, CAS Key Laboratory of Quantitative Engineering Biology, Shenzhen Institute of Synthetic Biology, Shenzhen Institutes of Advanced Technology, CAS, Shenzhen 518055, China
| | - Yunpu Jia
- CAS Key Laboratory of Green Process and Engineering, State Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, PR China; College of Chemical Engineering, University of Chinese Academy of Sciences, Beijing 100049, PR China
| | - Zheng Chen
- CAS Key Laboratory of Green Process and Engineering, State Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, PR China; College of Chemical Engineering, University of Chinese Academy of Sciences, Beijing 100049, PR China
| | - Gama Yang
- CAS Key Laboratory of Green Process and Engineering, State Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, PR China; College of Chemical Engineering, University of Chinese Academy of Sciences, Beijing 100049, PR China
| | - Jianmin Xing
- CAS Key Laboratory of Green Process and Engineering, State Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, PR China; College of Chemical Engineering, University of Chinese Academy of Sciences, Beijing 100049, PR China; Chemistry and Chemical Engineering Guangdong Laboratory, Shantou 515031, PR China.
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16
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Chen Z, Yang G, Hao X, Samak NA, Jia Y, Peh S, Mu T, Yang M, Xing J. Recent advances in microbial capture of hydrogen sulfide from sour gas via sulfur-oxidizing bacteria. Eng Life Sci 2021; 21:693-708. [PMID: 34690639 PMCID: PMC8518563 DOI: 10.1002/elsc.202100006] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2021] [Revised: 03/23/2021] [Accepted: 04/30/2021] [Indexed: 01/05/2023] Open
Abstract
Biological desulfurization offers several remarkably environmental advantages of operation at ambient temperature and atmospheric pressure, no demand of toxic chemicals as well as the formation of biologically re-usable sulfur (S0), which has attracted increasing attention compared to conventionally physicochemical approaches in removing hydrogen sulfide from sour gas. However, the low biomass of SOB, the acidification of process solution, the recovery of SOB, and the selectivity of bio-S0 limit its industrial application. Therefore, more efforts should be made in the improvement of the BDS process for its industrial application via different research perspectives. This review summarized the recent research advances in the microbial capture of hydrogen sulfide from sour gas based on strain modification, absorption enhancement, and bioreactor modification. Several efficient solutions to limitations for the BDS process were proposed, which paved the way for the future development of BDS industrialization.
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Affiliation(s)
- Zheng Chen
- CAS Key Laboratory of Green Process and EngineeringState Key Laboratory of Biochemical EngineeringInstitute of Process Engineering, Chinese Academy of SciencesBeijingP. R. China
- College of Chemical EngineeringUniversity of Chinese Academy of SciencesBeijingP. R. China
| | - Gama Yang
- CAS Key Laboratory of Green Process and EngineeringState Key Laboratory of Biochemical EngineeringInstitute of Process Engineering, Chinese Academy of SciencesBeijingP. R. China
- College of Chemical EngineeringUniversity of Chinese Academy of SciencesBeijingP. R. China
| | - Xuemi Hao
- CAS Key Laboratory of Green Process and EngineeringState Key Laboratory of Biochemical EngineeringInstitute of Process Engineering, Chinese Academy of SciencesBeijingP. R. China
- College of Chemical EngineeringUniversity of Chinese Academy of SciencesBeijingP. R. China
| | - Nadia A. Samak
- CAS Key Laboratory of Green Process and EngineeringState Key Laboratory of Biochemical EngineeringInstitute of Process Engineering, Chinese Academy of SciencesBeijingP. R. China
- College of Chemical EngineeringUniversity of Chinese Academy of SciencesBeijingP. R. China
- Processes Design and Development DepartmentEgyptian Petroleum Research InstituteCairoEgypt
| | - Yunpu Jia
- CAS Key Laboratory of Green Process and EngineeringState Key Laboratory of Biochemical EngineeringInstitute of Process Engineering, Chinese Academy of SciencesBeijingP. R. China
- College of Chemical EngineeringUniversity of Chinese Academy of SciencesBeijingP. R. China
| | - Sumit Peh
- CAS Key Laboratory of Green Process and EngineeringState Key Laboratory of Biochemical EngineeringInstitute of Process Engineering, Chinese Academy of SciencesBeijingP. R. China
- College of Chemical EngineeringUniversity of Chinese Academy of SciencesBeijingP. R. China
| | - Tingzhen Mu
- CAS Key Laboratory of Green Process and EngineeringState Key Laboratory of Biochemical EngineeringInstitute of Process Engineering, Chinese Academy of SciencesBeijingP. R. China
| | - Maohua Yang
- CAS Key Laboratory of Green Process and EngineeringState Key Laboratory of Biochemical EngineeringInstitute of Process Engineering, Chinese Academy of SciencesBeijingP. R. China
| | - Jianmin Xing
- CAS Key Laboratory of Green Process and EngineeringState Key Laboratory of Biochemical EngineeringInstitute of Process Engineering, Chinese Academy of SciencesBeijingP. R. China
- College of Chemical EngineeringUniversity of Chinese Academy of SciencesBeijingP. R. China
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17
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Zhang L, Qiu YY, Zhou Y, Chen GH, van Loosdrecht MCM, Jiang F. Elemental sulfur as electron donor and/or acceptor: Mechanisms, applications and perspectives for biological water and wastewater treatment. WATER RESEARCH 2021; 202:117373. [PMID: 34243051 DOI: 10.1016/j.watres.2021.117373] [Citation(s) in RCA: 54] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/07/2021] [Revised: 06/06/2021] [Accepted: 06/13/2021] [Indexed: 06/13/2023]
Abstract
Biochemical oxidation and reduction are the principle of biological water and wastewater treatment, in which electron donor and/or acceptor shall be provided. Elemental sulfur (S0) as a non-toxic and easily available material with low price, possesses both reductive and oxidative characteristics, suggesting that it is a suitable material for water and wastewater treatment. Recent advanced understanding of S0-respiring microorganisms and their metabolism further stimulated the development of S0-based technologies. As such, S0-based biotechnologies have emerged as cost-effective and attractive alternatives to conventional biological methods for water and wastewater treatment. For instance, S0-driven autotrophic denitrification substantially lower the operational cost for nitrogen removal from water and wastewater, compared to the conventional process with exogenous carbon source supplementation. The introduction of S0 can also avoid secondary pollution commonly caused by overdose of organic carbon. S0 reduction processes cost-effectively mineralize organic matter with low sludge production. Biological sulfide production using S0 as electron acceptor is also an attractive technology for metal-laden wastewater treatment, e.g. acid mine drainage. This paper outlines an overview of the fundamentals, characteristics and advances of the S0-based biotechnologies and highlights the functional S0-related microorganisms. In particular, the mechanisms of microorganisms accessing insoluble S0 and feasibility to improve S0 bio-utilization efficiency are critically discussed. Additionally, the research knowledge gaps, current process limitations, and required further developments are identified and discussed.
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Affiliation(s)
- Liang Zhang
- Guangdong Provincial Key Lab of Environmental Pollution Control and Remediation Technology, School of Environmental Science and Engineering, Sun Yat-Sen University, Guangzhou, China; Advanced Environmental Biotechnology Centre, Nanyang Environment and Water Research Institute, School of Civil and Environmental Engineering, Nanyang Technological University, Singapore
| | - Yan-Ying Qiu
- Guangdong Provincial Key Lab of Environmental Pollution Control and Remediation Technology, School of Environmental Science and Engineering, Sun Yat-Sen University, Guangzhou, China
| | - Yan Zhou
- Advanced Environmental Biotechnology Centre, Nanyang Environment and Water Research Institute, School of Civil and Environmental Engineering, Nanyang Technological University, Singapore
| | - Guang-Hao Chen
- Department of Civil and 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, Hong Kong, China
| | - Mark C M van Loosdrecht
- Department of Biotechnology, Delft University of Technology, van der Maasweg 9, 2629 HZ Delft, the Netherlands
| | - Feng Jiang
- Guangdong Provincial Key Lab of Environmental Pollution Control and Remediation Technology, School of Environmental Science and Engineering, Sun Yat-Sen University, Guangzhou, China.
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18
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Zhao Y, Wang J, Liu Y, Zheng P, Hu B. Microbial interaction promotes desulfurization efficiency under high pH condition. ENVIRONMENTAL RESEARCH 2021; 200:111423. [PMID: 34118244 DOI: 10.1016/j.envres.2021.111423] [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: 03/01/2021] [Revised: 05/22/2021] [Accepted: 05/25/2021] [Indexed: 06/12/2023]
Abstract
The existence of H2S in biogas may cause equipment corrosion and considerable SO2 emission. Commonly used biotrickling filters may cause biogas dilution or generation of explosive mixtures. Compared with biotrickling filters, two-step process such as bioscrubber filters can overcome these shortages. However, its removal efficiency was still limited due to low microbial activity under high pH condition. Here, a bioreactor filter was carried out under pH 9.0. Removal efficiency higher than 99% was achieved under sulfide loading rate reaching 4.24 kg S m-3d-1. Results of network and high throughput sequencing showed that Thiobacillus acted as both dominant species (accounting for 75%) and unique kinless hub in this bioreactor. Other bacteria (accounting for 25%) contributed 75% to the network, which implied the intensive interaction between Thiobacillus and others. Sulfide removal ability and pH tolerance of pure bacteria and mixed culture were considered to verify how microbial interaction influenced them. Compared with pure bacteria, mixed culture had better performance under high pH condition, which confirmed that microbial interaction promoted desulfurization efficiency under high pH condition. These results showed that intensive microbial interaction might be the key to enhance sulfide removal efficiency under high pH condition.
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Affiliation(s)
- Yuxiang Zhao
- Department of Environmental Engineering, Zhejiang University, Hangzhou, China
| | - Jiaqi Wang
- Department of Environmental Engineering, Zhejiang University, Hangzhou, China
| | - Yan Liu
- Department of Environmental Engineering, Zhejiang University, Hangzhou, China
| | - Ping Zheng
- Department of Environmental Engineering, Zhejiang University, Hangzhou, China
| | - Baolan Hu
- Department of Environmental Engineering, Zhejiang University, Hangzhou, China; Zhejiang Province Key Laboratory for Water Pollution Control and Environmental Safety, Hangzhou, China; Key Laboratory of Environment Remediation and Ecological Health, Ministry of Education, College of Environmental Resource Sciences, Zhejiang University, Hangzhou, China.
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19
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Deng YF, Wu D, Huang H, Cui YX, van Loosdrecht MCM, Chen GH. Exploration and verification of the feasibility of sulfide-driven partial denitrification coupled with anammox for wastewater treatment. WATER RESEARCH 2021; 193:116905. [PMID: 33581404 DOI: 10.1016/j.watres.2021.116905] [Citation(s) in RCA: 33] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/06/2020] [Revised: 01/10/2021] [Accepted: 02/02/2021] [Indexed: 06/12/2023]
Abstract
Anaerobic ammonia oxidation (anammox) is a well-developed biotechnology for treating high-strength ammonium wastewaters. Recently, partial denitrification has been considered as an alternative to supply anammox with the required nitrite. In this study, a process of sulfide-driven partial denitrification and anammox (SPDA) was developed and operated continuously in an upflow anaerobic sludge blanket (UASB) reactor for 392 days. This reactor was fed with synthetic wastewater containing 100 mgN/L nitrate, 80 mgN/L ammonium and 20-80 mgS/L sulfide. After 160 days of operation, the reactor reached stable performance, and the nitrogen removal efficiency and rate were maintained at 80% and 0.29 kgN/(m³•d), respectively. The estimated nitrogen removal via anammox and sulfide-driven denitrification were 87.2% and 12.8%. Additional batch experiments were conducted to investigate the effects of sulfide on anammox and the mechanisms of nitrogen removal in the SPDA system. The following results were obtained: (1) sulfide had an inhibitory effect on the specific anammox activity with IC50 of 9.7 mgS-H2S/L. (2) The rapid oxidation of sulfide by sulfur-oxidizing bacteria (SOB) could relieve the toxic effects of sulfide on the anammox in the SPDA system. (3) Sulfide bio-oxidation was a two-step reaction with biologically produced elemental sulfur (BPS0) as the intermediate, and the second step using BPS0 as the electron donor, can efficiently produce nitrite via partial denitrification (NO3- → NO2-) as a supply for anammox. Finally, a high-throughput sequencing analysis identified Thiobacillus and Sulfurimonas as the dominant genera of SOB in the SPDA system, and Candidatus Kuenenia as the dominant anammox bacteria. Overall, this research gives the foundation for the practical application of sulfide-driven partial denitrification and anammox process in the future.
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Affiliation(s)
- Yang-Fan Deng
- Department of Civil and 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, Hong Kong SAR, China; Shenzhen Research Institute, Fok Ying Tung Graduate School, The Hong Kong University of Science and Technology, Guangdong, China
| | - Di Wu
- Department of Civil and 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, Hong Kong SAR, China; Shenzhen Research Institute, Fok Ying Tung Graduate School, The Hong Kong University of Science and Technology, Guangdong, China.
| | - Hao Huang
- Department of Civil and 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, Hong Kong SAR, China; Shenzhen Research Institute, Fok Ying Tung Graduate School, The Hong Kong University of Science and Technology, Guangdong, China
| | - Yan-Xiang Cui
- Department of Civil and 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, Hong Kong SAR, China
| | | | - Guang-Hao Chen
- Department of Civil and 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, Hong Kong SAR, China; Shenzhen Research Institute, Fok Ying Tung Graduate School, The Hong Kong University of Science and Technology, Guangdong, China.
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20
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Mu T, Yang M, Xing J. Performance and characteristic of a haloalkaliphilic bio-desulfurizing system using Thioalkalivibrio verustus D301 for efficient removal of H2S. Biochem Eng J 2021. [DOI: 10.1016/j.bej.2020.107812] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
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21
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Yang H, Deng L. Using air instead of biogas for mixing and its effect on anaerobic digestion of animal wastewater with high suspended solids. BIORESOURCE TECHNOLOGY 2020; 318:124047. [PMID: 32871320 DOI: 10.1016/j.biortech.2020.124047] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/10/2020] [Revised: 08/14/2020] [Accepted: 08/19/2020] [Indexed: 06/11/2023]
Abstract
This study proposed a new mixing method for anaerobic digestion treating animal wastewater using air as gas source of agitation (named "air mixing") and demonstrated its feasibility by comparing with other mixing modes. The results indicated that the methane production for air mixing was increased by 6.4%, 11.9% and 19.6% compared with biogas mixing, mechanical mixing and no mixing. Air mixing improved the mass transfer and the homogeneous mixing time was shortened from 10 min of mechanical mixing to 1.5 min at the same power input. A transient microaerobic environment was created by air mixing, which increased the hydrolysis efficiency by 1.7-11.4% compared with biogas mixing and facilitated VFAs generation and consumption, as well as promoted the syntrophic relationship between facultative bacteria and hydrogenotrophic methanogens. The relative contribution of the improvement of mass transfer and the reaction of microaerobic environment to methane production was 62.9% and 37.1%, respectively.
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Affiliation(s)
- Hongnan Yang
- Biogas Institute of Ministry of Agriculture and Rural Affairs, Chengdu 610041, PR China; Laboratory of Development and Application of Rural Renewable Energy, Ministry of Agriculture and Rural Affairs, Chengdu 610041, PR China
| | - Liangwei Deng
- Biogas Institute of Ministry of Agriculture and Rural Affairs, Chengdu 610041, PR China; Laboratory of Development and Application of Rural Renewable Energy, Ministry of Agriculture and Rural Affairs, Chengdu 610041, PR China.
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22
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Kiragosyan K, Picard M, Timmers PHA, Sorokin DY, Klok JBM, Roman P, Janssen AJH. Effect of methanethiol on process performance, selectivity and diversity of sulfur-oxidizing bacteria in a dual bioreactor gas biodesulfurization system. JOURNAL OF HAZARDOUS MATERIALS 2020; 398:123002. [PMID: 32506049 DOI: 10.1016/j.jhazmat.2020.123002] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/14/2020] [Revised: 04/30/2020] [Accepted: 05/19/2020] [Indexed: 06/11/2023]
Abstract
This study provides important new insights on how to achieve high sulfur selectivities and stable gas biodesulfurization process operation in the presence of both methanethiol and H2S in the feed gas. On the basis of previous research, we hypothesized that a dual bioreactor lineup (with an added anaerobic bioreactor) would favor sulfur-oxidizing bacteria (SOB) that yield a higher sulfur selectivity. Therefore, the focus of the present study was to enrich thiol-resistant SOB that can withstand methanethiol, the most prevalent and toxic thiol in sulfur-containing industrial off gases. In addition, the effect of process conditions on the SOB population dynamics was investigated. The results confirmed that thiol-resistant SOB became dominant with a concomitant increase of the sulfur selectivity from 75 mol% to 90 mol% at a loading rate of 2 mM S methanethiol day-1. The abundant SOB in the inoculum - Thioalkalivibrio sulfidiphilus - was first outcompeted by Alkalilimnicola ehrlichii after which Thioalkalibacter halophilus eventually became the most abundant species. Furthermore, we found that the actual electron donor in our lab-scale biodesulfurization system was polysulfide, and not the primarily supplied sulfide.
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Affiliation(s)
- Karine Kiragosyan
- Wetsus, European Centre of Excellence for Sustainable Water Technology, Oostergoweg 9, 8911 MA Leeuwarden, the Netherlands; Environmental Technology, Wageningen University & Research, P.O. Box 17, 6700 AA Wageningen, the Netherlands.
| | - Magali Picard
- Wetsus, European Centre of Excellence for Sustainable Water Technology, Oostergoweg 9, 8911 MA Leeuwarden, the Netherlands; Eurofins Agroscience Services Chem SAS 75, chemin de Sommières 30310, Vergèze, France
| | - Peer H A Timmers
- Wetsus, European Centre of Excellence for Sustainable Water Technology, Oostergoweg 9, 8911 MA Leeuwarden, the Netherlands; Laboratory of Microbiology, Wageningen University & Research, Wageningen, the Netherlands
| | - Dimitry Y Sorokin
- Wetsus, European Centre of Excellence for Sustainable Water Technology, Oostergoweg 9, 8911 MA Leeuwarden, the Netherlands; Winogradsky Institute of Microbiology, Research Centre of Biotechnology, Russian Academy of Sciences, Prospect 60-let Oktyabrya 7/2, Moscow, Russian Federation; Department of Biotechnology, Delft University of Technology, Van der Maasweg 9, 2629 HZ, Delft, the Netherlands
| | - Johannes B M Klok
- Wetsus, European Centre of Excellence for Sustainable Water Technology, Oostergoweg 9, 8911 MA Leeuwarden, the Netherlands; Environmental Technology, Wageningen University & Research, P.O. Box 17, 6700 AA Wageningen, the Netherlands; Paqell B.V., Reactorweg 301, 3542 AD, Utrecht, the Netherlands
| | - Pawel Roman
- Wetsus, European Centre of Excellence for Sustainable Water Technology, Oostergoweg 9, 8911 MA Leeuwarden, the Netherlands
| | - Albert J H Janssen
- Environmental Technology, Wageningen University & Research, P.O. Box 17, 6700 AA Wageningen, the Netherlands; Shell, Oostduinlaan 2, 2596 JM, the Hague, the Netherlands
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Haghighatian S, Mazarei E, Doroodmand MM, Klein A, Memarpoor-Yazdi M. A new whole-cell biocatalyst for sulfur dioxide filtering and degradation. BIORESOURCE TECHNOLOGY 2020; 314:123755. [PMID: 32623286 DOI: 10.1016/j.biortech.2020.123755] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/19/2020] [Revised: 06/24/2020] [Accepted: 06/25/2020] [Indexed: 06/11/2023]
Abstract
In this study, the interaction of the magnetotactic bacterium with sulfite compounds and their potential to degrade SO2 was investigated using cyclic voltammetry (CV), molecular emission cavity analysis (MECA) and ion-exchange chromatography (IEC). This biofilter was able to degrade SO2 up to 22281 mg m-3 by disproportionation reaction and the formation of S2- and SO42- with ≥99% efficiency. Designed biofilter was able to restart the initial performance at least after seven cycles if it was used at 14-day intervals. According to theoretical studies, the value of mean free energy (E) obtained using the Dubinin-Radushkevich isotherm model was 0.02 kJ mol-1, which is in the range expected for physical adsorption. Designed biofilter can be considered as a powerful tool to degrade SO2 in diverse urban and industrial centers.
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Affiliation(s)
- Sara Haghighatian
- Department of Chemistry, College of Science, Shiraz University, Shiraz, Iran
| | - Elham Mazarei
- Department of Chemistry, College of Science, Shiraz University, Shiraz, Iran
| | | | - Axel Klein
- Department of Chemistry, Institute of Inorganic Chemistry, University of Cologne, Germany
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24
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Abstract
In the biodesulfurization (BD) process under halo-alkaline conditions, toxic hydrogen sulfide is oxidized to elemental sulfur by a mixed culture of sulfide oxidizing bacteria to clean biogas. The resulting sulfur is recovered by gravitational settling and can be used as raw material in various industries. However, if the sulfur particles do not settle, it will lead to operational difficulties. In this study, we investigated the properties of sulfur formed in five industrial BD facilities. Sulfur particles from all samples showed large differences in terms of shape, size, and settleability. Both single crystals (often bipyramidal) and aggregates thereof were observed with light and scanning electron microscopy. The small, non-settled particles account for at least 13.6% of the total number of particles and consists of small individual particles with a median of 0.3 µm. This is undesirable, because those particles cannot be removed from the BD facility by gravitational settling and lead to operational interruption. The particles with good settling properties are aggregates (5–20 µm) or large single crystals (20 µm). We provide hypotheses as to how the differences in sulfur particle properties might have occurred. These findings provide a basis for understanding the relation between sulfur particle properties and formation mechanisms.
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25
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Fasihi M, Fazaelipoor MH, Rezakazemi M. H 2S removal from sour water in a combination system of trickling biofilter and biofilter. ENVIRONMENTAL RESEARCH 2020; 184:109380. [PMID: 32182483 DOI: 10.1016/j.envres.2020.109380] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/10/2019] [Revised: 01/22/2020] [Accepted: 03/10/2020] [Indexed: 06/10/2023]
Abstract
Desulfurization of sour water was investigated in a combination system of trickling biofilter (BTF) and biofilter (BF) filled with ceramic packing materials. A critical elimination capacity (EC) of 251.93 g S m-3 h-1 was obtained for the BTF/BF system during a stepwise increase of sulfide concentration from 10 to 60 g S m-3. This stepwise increment of loading rate also led to critical ECs of 176.21 and 478.88 g S m-3 h-1 for BTF and BF, respectively. A dynamic model describing biological H2S removal from sour water in the BTF/BF was developed and calibrated by a set of experimental data. The model includes the main processes occurring in the BTF/BF such as mass transfer between phases, diffusion and biological reaction inside the biofilm. The model also considers the intermediate (elemental sulfur) production/consumption and sulfate formation through the different oxidation pathways. The model validation was performed under a starvation period and a dynamic H2S loading period. A sensitivity analysis was carried out to evaluate the relative importance of the key parameters on the performance of the BTF/BF system. Sensitivity analysis showed that the BTF performance is more affected by the parameters related to H2S mass transfer.
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Affiliation(s)
- Mojtaba Fasihi
- Department of Chemical Engineering, Faculty of Engineering, Shahid Bahonar University of Kerman, Iran
| | - Mohammad Hassan Fazaelipoor
- Department of Chemical Engineering, Faculty of Engineering, Shahid Bahonar University of Kerman, Iran; Department of Chemical and Polymer Engineering, Faculty of Engineering, Yazd University, Yazd, Iran.
| | - Mashallah Rezakazemi
- Faculty of Chemical and Materials Engineering, Shahrood University of Technology, Shahrood, Iran
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26
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Liu Z, Xue R, Ma Y, Zang L, Zhuang J, Lu G. Effect of sulfate removal in a high sulfate volumetric loading micro-aerobic bio-reactor and study of subsequent bio-sulfur adsorption by iron-modified activated carbon. RSC Adv 2020; 10:14542-14549. [PMID: 35497127 PMCID: PMC9051921 DOI: 10.1039/c9ra10908k] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2019] [Accepted: 03/27/2020] [Indexed: 11/21/2022] Open
Abstract
Removal of sulfide from a micro-aerobic bio-reactor was studied at 10 000 mg L−1 chemical oxygen demand (COD) of inlet water, with the sulfate volumetric loading 0.75, 1.0, 1.5 and 2.0 kg (m−3 d−1), respectively. Tentatively, activated carbon (AC) as an adsorbent was modified in positively charged iron to adsorb bio-sulfur through electrostatic interaction. At an O2/S molar ratio of 8–10, the reactor was sufficient to decrease the sulfide in the effluent and biogas to low levels at the sulfate volumetric loading of 2 kg (m−3 d−1). After iron-modified, the specific surface area of AC was form 32.4 m2 g−1 to 65.0 m2 g−1, and the zeta potential was 25.3 mV at pH 7.0. The XRD pattern of the iron-modified activated carbon (FeAC) explained that the metal species of iron was Fe3O4. It could be clearly seen that there was Fe3O4 on the surface of the FeAC, and sulfur particles with a large particle size were adsorbed by the FeAC on the SEM figures. And the XRD pattern of the bio-sulfur explained that the bio-sulfur was made up of S8 (91.444%), C3H4N2OS (1.491%) and CH5N3S (7.075%). The zeta potential of bio-sulfur was −25 mV and the particle size was mainly distributed at the average diameter of 1935 nm at pH 7.0. Removal of sulfide from a micro-aerobic bio-reactor was studied at 10 000 mg L−1 chemical oxygen demand (COD) of inlet water, with the sulfate volumetric loading 0.75, 1.0, 1.5 and 2.0 kg (m−3 d−1), respectively.![]()
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Affiliation(s)
- Ziyu Liu
- School of Environmental Science and Engineering, Qilu University of Technology (Shandong Academy of Sciences) Jinan 250353 China +86-531-89631680 +86-531-89631680
| | - Rong Xue
- School of Environmental Science and Engineering, Qilu University of Technology (Shandong Academy of Sciences) Jinan 250353 China +86-531-89631680 +86-531-89631680
| | - Yunqian Ma
- School of Environmental Science and Engineering, Qilu University of Technology (Shandong Academy of Sciences) Jinan 250353 China +86-531-89631680 +86-531-89631680.,Jiangsu Key Laboratory of Anaerobic Biotechnology, Jiangnan University Wuxi 214122 P. R. China
| | - Lihua Zang
- School of Environmental Science and Engineering, Qilu University of Technology (Shandong Academy of Sciences) Jinan 250353 China +86-531-89631680 +86-531-89631680
| | - Jiasheng Zhuang
- School of Environmental Science and Engineering, Qilu University of Technology (Shandong Academy of Sciences) Jinan 250353 China +86-531-89631680 +86-531-89631680
| | - Guangsong Lu
- School of Environmental Science and Engineering, Qilu University of Technology (Shandong Academy of Sciences) Jinan 250353 China +86-531-89631680 +86-531-89631680
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27
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Li W, Zhang M, Kang D, Chen W, Yu T, Xu D, Zeng Z, Li Y, Zheng P. Mechanisms of sulfur selection and sulfur secretion in a biological sulfide removal (BISURE) system. ENVIRONMENT INTERNATIONAL 2020; 137:105549. [PMID: 32086075 DOI: 10.1016/j.envint.2020.105549] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/20/2019] [Revised: 01/06/2020] [Accepted: 02/03/2020] [Indexed: 06/10/2023]
Abstract
Biological desulfurization technology is a sustainable process for the sulfide removal from biogas, which has multiple advantages. In this study, a biological sulfide removal (BISURE) system was established to investigate the working performances and process mechanisms. The results showed that the sulfide removal rate was 2.30 kg-S/(m3 d), the sulfide removal efficiency was higher than 98%, the sulfur production rate was 1.76 kg-S/(m3 d), the sulfur selectivity was 75.02 ± 3.63% and the main form of products (sulfur compounds) was Rosickyite-S and S8. The performance of BISURE system was supported by the dominant genus (abundance more than 60%) of sulfur-oxidizing bacteria (SOB) which shifted to Thiovirga at the high SLR. The sqr and dsrA genes could serve as the indicators for the pathway of two-step sulfide oxidation, i.e. "partial sulfide oxidation (PSO, sulfide → sulfur)" and "complete sulfide oxidation (CSO, sulfur → sulfate)". The sulfur selectivity was improved by enhancing PSO and inhibiting CSO with the indication of two genes. The cellular sulfur secretion was revealed, and the "outer-membrane vesicles (OMVs)-dependent" sulfur-secreting hypothesis was proposed to explain the transportation of elemental sulfur from inside to outside of SOB cells. The findings of this work provide a new perspective to understand the sulfur selection of sulfide bio-oxidation and the sulfur secretion of SOB cells so as to promote the development of biological desulfurization technology.
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Affiliation(s)
- Wenji Li
- Department of Environmental Engineering, College of Environmental & Resource Sciences, Zhejiang University, Hangzhou, Zhejiang 310058, China
| | - Meng Zhang
- Advanced Environmental Biotechnology Centre, Nanyang Environment & Water Research Institute, Nanyang Technological University, Singapore
| | - Da Kang
- Department of Environmental Engineering, College of Environmental & Resource Sciences, Zhejiang University, Hangzhou, Zhejiang 310058, China
| | - Wenda Chen
- Department of Environmental Engineering, College of Environmental & Resource Sciences, Zhejiang University, Hangzhou, Zhejiang 310058, China
| | - Tao Yu
- Department of Environmental Engineering, College of Environmental & Resource Sciences, Zhejiang University, Hangzhou, Zhejiang 310058, China
| | - Dongdong Xu
- Department of Environmental Engineering, College of Environmental & Resource Sciences, Zhejiang University, Hangzhou, Zhejiang 310058, China
| | - Zhuo Zeng
- Department of Environmental Engineering, College of Environmental & Resource Sciences, Zhejiang University, Hangzhou, Zhejiang 310058, China
| | - Yiyu Li
- Department of Environmental Engineering, College of Environmental & Resource Sciences, Zhejiang University, Hangzhou, Zhejiang 310058, China
| | - Ping Zheng
- Department of Environmental Engineering, College of Environmental & Resource Sciences, Zhejiang University, Hangzhou, Zhejiang 310058, China.
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28
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Kiragosyan K, Picard M, Sorokin DY, Dijkstra J, Klok JBM, Roman P, Janssen AJH. Effect of dimethyl disulfide on the sulfur formation and microbial community composition during the biological H 2S removal from sour gas streams. JOURNAL OF HAZARDOUS MATERIALS 2020; 386:121916. [PMID: 31884361 DOI: 10.1016/j.jhazmat.2019.121916] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/12/2019] [Revised: 12/06/2019] [Accepted: 12/15/2019] [Indexed: 06/10/2023]
Abstract
Removal of organic and inorganic sulfur compounds from sour gases is required because of their toxicity and atmospheric pollution. The most common are hydrogen sulfide (H2S) and methanethiol (MT). Under oxygen-limiting conditions about 92 mol% of sulfide is oxidized to sulfur by haloalkaliphilic sulfur-oxidizing bacteria (SOB), whilst the remainder is oxidized either biologically to sulfate or chemically to thiosulfate. MT is spontaneously oxidized to dimethyl disulfide (DMDS), which was found to inhibit the oxidation of sulfide to sulfate. Hence, we assessed the effect of DMDS on product formation in a lab-scale biodesulfurization setup. DMDS was quantified using a newly, in-house developed analytical method. Subsequently, a chemical reaction mechanism was proposed for the formation of methanethiol and dimethyl trisulfide from the reaction between sulfide and DMDS. Addition of DMDS resulted in significant inhibition of sulfate formation, leading to 96 mol% of sulfur formation. In addition, a reduction in the dominating haloalkaliphilic SOB species, Thioalkalivibrio sulfidiphilus, was observed in favor of Thioalkaibacter halophilus as a more DMDS-tolerant with the 50 % inhibition coefficient at 2.37 mM DMDS.
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Affiliation(s)
- Karine Kiragosyan
- Wetsus, European Centre of Excellence for Sustainable Water Technology, Oostergoweg 9, 8911 MA Leeuwarden, The Netherlands; Environmental Technology, Wageningen University, P.O. Box 17, 6700 AA Wageningen, The Netherlands.
| | - Magali Picard
- Wetsus, European Centre of Excellence for Sustainable Water Technology, Oostergoweg 9, 8911 MA Leeuwarden, The Netherlands; Eurofins Agroscience Services Chem SAS 75, chemin de Sommières 30310, Vergèze, France
| | - Dimitry Y Sorokin
- Wetsus, European Centre of Excellence for Sustainable Water Technology, Oostergoweg 9, 8911 MA Leeuwarden, The Netherlands; Winogradsky Institute of Microbiology, Research Centre of Biotechnology, Russian Academy of Sciences, Prospect 60-let Oktyabrya 7/2, Moscow, Russian Federation; Department of Biotechnology, Delft University of Technology, Van der Maasweg 9, 2629 HZ Delft, The Netherlands
| | - Jelmer Dijkstra
- Wetsus, European Centre of Excellence for Sustainable Water Technology, Oostergoweg 9, 8911 MA Leeuwarden, The Netherlands
| | - Johannes B M Klok
- Wetsus, European Centre of Excellence for Sustainable Water Technology, Oostergoweg 9, 8911 MA Leeuwarden, The Netherlands; Environmental Technology, Wageningen University, P.O. Box 17, 6700 AA Wageningen, The Netherlands; Paqell B.V., Reactorweg 301, 3542 AD Utrecht, The Netherlands
| | - Pawel Roman
- Wetsus, European Centre of Excellence for Sustainable Water Technology, Oostergoweg 9, 8911 MA Leeuwarden, The Netherlands
| | - Albert J H Janssen
- Environmental Technology, Wageningen University, P.O. Box 17, 6700 AA Wageningen, The Netherlands; Shell, Oostduinlaan 2, 2596 JM the Hague, The Netherlands
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29
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de Rink R, Klok JBM, van Heeringen GJ, Keesman KJ, Janssen AJH, Ter Heijne A, Buisman CJN. Biologically enhanced hydrogen sulfide absorption from sour gas under haloalkaline conditions. JOURNAL OF HAZARDOUS MATERIALS 2020; 383:121104. [PMID: 31586887 DOI: 10.1016/j.jhazmat.2019.121104] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/06/2019] [Revised: 07/21/2019] [Accepted: 08/26/2019] [Indexed: 06/10/2023]
Abstract
We studied a biotechnological desulfurization process for removal of toxic hydrogen sulfide (H2S) from sour gas. The process consists of two steps: i) Selective absorption of H2S into a (bi)carbonate solution in the absorber column and ii) conversion of sulfide to sulfur by sulfide oxidizing bacteria (SOB) in the aerated bioreactor. In previous studies, several physico-chemical factors were assessed to explain the observed enhancement of H2S absorption in the absorber, but a full explanation was not provided. We investigated the relation between the metabolic activity of SOB and the enhancement factor. Two continuous experiments on pilot-scale were performed to determine H2S absorption efficiencies at different temperatures and biomass concentrations. The absorption efficiency improved at increasing temperatures, i.e. H2S concentration in the treated gas decreased from 715 ± 265 ppmv at 25.4 °C to 69 ± 25 ppmv at 39.4 °C. The opposite trend is expected when H2S absorption is solely determined by physico-chemical factors. Furthermore, increasing biomass concentrations to the absorber also resulted in decreased H2S concentrations in the treated gas, from approximately 6000 ppmv without biomass to 1664 ± 126 ppmv at 44 mg N/L. From our studies it can be concluded that SOB activity enhances H2S absorption and leads to increased H2S removal efficiencies in biotechnological gas desulfurization.
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Affiliation(s)
- Rieks de Rink
- Environmental Technology, Wageningen University, P.O. Box 17, Wageningen, the Netherlands; Paqell B.V., Reactorweg 301, 3542 AD Utrecht, the Netherlands
| | - Johannes B M Klok
- Environmental Technology, Wageningen University, P.O. Box 17, Wageningen, the Netherlands; Paqell B.V., Reactorweg 301, 3542 AD Utrecht, the Netherlands; Wetsus, European Centre of Excellence for Sustainable Water Technology, Oostergoweg 9, Leeuwarden, the Netherlands
| | | | - Karel J Keesman
- Wetsus, European Centre of Excellence for Sustainable Water Technology, Oostergoweg 9, Leeuwarden, the Netherlands; Mathematical and Statistical methods, Wageningen University, P.O. Box 16, 6700 AA Wageningen, the Netherlands
| | - Albert J H Janssen
- Environmental Technology, Wageningen University, P.O. Box 17, Wageningen, the Netherlands
| | - Annemiek Ter Heijne
- Environmental Technology, Wageningen University, P.O. Box 17, Wageningen, the Netherlands.
| | - Cees J N Buisman
- Environmental Technology, Wageningen University, P.O. Box 17, Wageningen, the Netherlands; Wetsus, European Centre of Excellence for Sustainable Water Technology, Oostergoweg 9, Leeuwarden, the Netherlands
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30
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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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31
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Cui YX, Biswal BK, van Loosdrecht MCM, Chen GH, Wu D. Long term performance and dynamics of microbial biofilm communities performing sulfur-oxidizing autotrophic denitrification in a moving-bed biofilm reactor. WATER RESEARCH 2019; 166:115038. [PMID: 31505308 DOI: 10.1016/j.watres.2019.115038] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/10/2019] [Revised: 08/30/2019] [Accepted: 08/31/2019] [Indexed: 06/10/2023]
Abstract
Sulfide-oxidizing autotrophic denitrification (SOAD) implemented in a moving-bed biofilm reactor (MBBR) is a promising alternative to conventional heterotrophic denitrification in mainstream biological nitrogen removal. The sulfide-oxidation intermediate - elemental sulfur - is crucial for the kinetic and microbial properties of the sulfur-oxidizing bacterial communities, but its role is yet to be studied in depth. Hence, to investigate the performance and microbial communities of the aforementioned new biosystem, we operated for a long term a laboratory-scale (700 d) SOAD MBBR to treat synthetic saline domestic sewage, with an increase of the surface loading rate from 8 to 50 mg N/(m2·h) achieved by shortening the hydraulic retention time from 12 h to 2 h. The specific reaction rates of the reactor were eventually increased up to 0.37 kg N/(m3·d) and 0.73 kg S/(m3·d) for nitrate reduction and sulfide oxidation with no significant sulfur elemental accumulation. Two sulfur-oxidizing bacterial (SOB) clades, Sox-independent SOB (SOBI) and Sox-dependent SOB (SOBII), were responsible for indirect two-step sulfur oxidation (S2-→S0→SO42-) and direct one-step sulfur oxidation (S2-→SO42-), respectively. The SOBII biomass-specific electron transfer capacity could be around 2.5 times greater than that of SOBI (38 mmol e-/(gSOBII·d) versus 15 mmol e-/(gSOBI·d)), possibly resulting in the selection of SOBII over SOBI under stress conditions (such as a shorter HRT). Further studies on the methods and mechanism of selecting of SOBII over SOBI in biofilm reactors are recommended. Overall, the findings shed light on the design and operation of MBBR-based SOAD processes for mainstream biological denitrification.
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Affiliation(s)
- Yan-Xiang Cui
- Department of Civil and Environmental Engineering, Water Technology Center, Chinese National Engineering Research Center for Control & Treatment of Heavy Metal Pollution (Hong Kong Branch), The Hong Kong University of Science and Technology, Hong Kong China; Shenzhen Research Institute, Fok Ying Tung Graduate School, The Hong Kong University of Science and Technology, Guangdong, China
| | - Basanta Kumar Biswal
- Department of Civil and Environmental Engineering, Water Technology Center, Chinese National Engineering Research Center for Control & Treatment of Heavy Metal Pollution (Hong Kong Branch), The Hong Kong University of Science and Technology, Hong Kong China
| | | | - Guang-Hao Chen
- Department of Civil and Environmental Engineering, Water Technology Center, Chinese National Engineering Research Center for Control & Treatment of Heavy Metal Pollution (Hong Kong Branch), The Hong Kong University of Science and Technology, Hong Kong China; Shenzhen Research Institute, Fok Ying Tung Graduate School, The Hong Kong University of Science and Technology, Guangdong, China
| | - Di Wu
- Department of Civil and Environmental Engineering, Water Technology Center, Chinese National Engineering Research Center for Control & Treatment of Heavy Metal Pollution (Hong Kong Branch), The Hong Kong University of Science and Technology, Hong Kong China; Shenzhen Research Institute, Fok Ying Tung Graduate School, The Hong Kong University of Science and Technology, Guangdong, China.
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Cui YX, Guo G, Ekama GA, Deng YF, Chui HK, Chen GH, Wu D. Elucidating the biofilm properties and biokinetics of a sulfur-oxidizing moving-bed biofilm for mainstream nitrogen removal. WATER RESEARCH 2019; 162:246-257. [PMID: 31279316 DOI: 10.1016/j.watres.2019.02.061] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/15/2019] [Revised: 02/25/2019] [Accepted: 02/26/2019] [Indexed: 06/09/2023]
Abstract
The sulfide-oxidizing autotrophic denitrification (SOAD) process offers a feasible alternative to mainstream heterotrophic denitrification in treating domestic sewage with insufficient organics. Previously SOAD has been successfully applied in a moving-bed biofilm reactor (MBBR). However, the biofilm properties and biokinetics are still not thoroughly understood. The present study was therefore designed to investigate these features of sulfur-oxidizing biofilms (SOBfs) cultivated in a lab-scale MBBR under stable operation for over a year. The biofilms developed were 160 μm thick, had an uneven and porous surface on which elemental sulfur (S0) accumulated, and the SOB biomass was highly diverse. The bioprocess kinetics were evaluated through 12 batch experiments. The results were interpreted by adopting a two-step sulfide oxidation model (sulfide→S0 and S0→ sulfate) with all specific rates having a linear regression coefficient of R2 > 0.9. Moreover, the inhibitory kinetic analysis revealed that 1) the maximum treatment capacity (about 480 mg S/(m2·h) and 80 mg N/(m2·h)) was observed at low sulfide level (40 mg S/L), while higher sulfide level (60-150 mg S/L) showed increasing inhibition on the oxidation of both sulfide and sulfur and denitrification. 2) The denitritation activity decreased by up to 43% when free nitrous acid reached a maximum of 8.6 μg N/L, whereas the oxidation of sulfide and sulfur did not have any significant effect. Interestingly, two physiologically diverse SOB groups were found in this special biofilm. The mechanisms of the cooperation and competition for electron donors and acceptors between these two SOB clades are proposed. The results of this study greatly enhance our understanding of the design and optimization of SOAD-MBBR for mainstream nitrogen removal.
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Affiliation(s)
- Yan-Xiang Cui
- Department of Civil and 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, Hong Kong, China; Fok Ying Tung Graduate School and Shenzhen Research Institute, The Hong Kong University of Science and Technology, Guangdong, China
| | - Gang Guo
- Department of Civil and 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, Hong Kong, China
| | - George A Ekama
- Water Research Group, Department of Civil Engineering, University of Cape Town, Cape Town, South Africa
| | - Yang-Fan Deng
- Department of Civil and 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, Hong Kong, China
| | - Ho-Kwong Chui
- Department of Civil and 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, Hong Kong, China
| | - Guang-Hao Chen
- Department of Civil and 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, Hong Kong, China; Fok Ying Tung Graduate School and Shenzhen Research Institute, The Hong Kong University of Science and Technology, Guangdong, China
| | - Di Wu
- Department of Civil and 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, Hong Kong, China; Fok Ying Tung Graduate School and Shenzhen Research Institute, The Hong Kong University of Science and Technology, Guangdong, China.
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Sharshar MM, Samak NA, Hao X, Mu T, Zhong W, Yang M, Peh S, Ambreen S, Xing J. Enhanced growth-driven stepwise inducible expression system development in haloalkaliphilic desulfurizing Thioalkalivibrio versutus. BIORESOURCE TECHNOLOGY 2019; 288:121486. [PMID: 31128536 DOI: 10.1016/j.biortech.2019.121486] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/18/2019] [Revised: 05/11/2019] [Accepted: 05/13/2019] [Indexed: 05/13/2023]
Abstract
Highly toxic and flammable H2S gas has become an environmental threat. Because of its ability to efficiently remove H2S by oxidation, Thioalkalivibrio versutus is gaining more attention. Haloalkaliphilic autotrophs, like the bio-desulfurizing T. versutus, grow weakly. Weak growth makes any trial for developing potent genetic tools required for genetic engineering far from achieved. In this study, the fed-batch strategy improved T. versutus growth by 1.6 fold in maximal growth rate, 9-fold in O.D600 values and about 3-fold in biomass and protein productions. The strategy also increased the favorable desulfurization product, sulfur, by 2.7 fold in percent yield and 1.5-fold in diameter. A tight iron-inducible expression system for T. versutus was successfully developed. The system was derived from fed-batch cultivation coupled with new design, build, test and validate (DPTV) approach. The inducible system was validated by toxin expression. Fed-batch cultivation coupled with DPTV approach could be applied to other autotrophs.
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Affiliation(s)
- Moustafa Mohamed Sharshar
- Key Laboratory of Green Process and Engineering, State Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences (CAS), Beijing 100190, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Nadia Abdrabo Samak
- Key Laboratory of Green Process and Engineering, State Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences (CAS), Beijing 100190, China; University of Chinese Academy of Sciences, Beijing 100049, China; Processes Design and Development Department, Egyptian Petroleum Research Institute, Nasr City, 11727 Cairo, Egypt
| | - Xuemi Hao
- Key Laboratory of Green Process and Engineering, State Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences (CAS), Beijing 100190, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Tingzhen Mu
- Key Laboratory of Green Process and Engineering, State Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences (CAS), Beijing 100190, China
| | - Wei Zhong
- Key Laboratory of Green Process and Engineering, State Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences (CAS), Beijing 100190, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Maohua Yang
- Key Laboratory of Green Process and Engineering, State Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences (CAS), Beijing 100190, China
| | - Sumit Peh
- Key Laboratory of Green Process and Engineering, State Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences (CAS), Beijing 100190, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Sadaf Ambreen
- University of Chinese Academy of Sciences, Beijing 100049, China; Key Laboratory of Genomics and Precision Medicine, Institute of Genomics, CAS, Beijing 100101, China
| | - Jianmin Xing
- Key Laboratory of Green Process and Engineering, State Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences (CAS), Beijing 100190, China; University of Chinese Academy of Sciences, Beijing 100049, China.
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Kiragosyan K, Klok JB, Keesman KJ, Roman P, Janssen AJ. Development and validation of a physiologically based kinetic model for starting up and operation of the biological gas desulfurization process under haloalkaline conditions. WATER RESEARCH X 2019; 4:100035. [PMID: 31334497 PMCID: PMC6614595 DOI: 10.1016/j.wroa.2019.100035] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/04/2019] [Revised: 06/28/2019] [Accepted: 07/01/2019] [Indexed: 05/14/2023]
Abstract
Hydrogen sulfide is a toxic and corrosive gas that must be removed from gaseous hydrocarbon streams prior to combustion. This paper describes a gas biodesulfurization process where sulfur-oxidizing bacteria (SOB) facilitate sulfide conversion to both sulfur and sulfate. In order to optimize the formation of sulfur, it is crucial to understand the relations between the SOB microbial composition, kinetics of biological and abiotic sulfide oxidation and the effects on the biodesulfurization process efficiency. Hence, a physiologically based kinetic model was developed for four different inocula. The resulting model can be used as a tool to evaluate biodesulfurization process performance. The model relies on a ratio of two key enzymes involved in the sulfide oxidation process, i.e., flavocytochrome c and sulfide-quinone oxidoreductase (FCC and SQR). The model was calibrated by measuring biological sulfide oxidation rates for different inocula obtained from four full-scale biodesulfurization installations fed with gases from various industries. Experimentally obtained biological sulfide oxidation rates showed dissimilarities between the tested biomasses which could be explained by assuming distinctions in the key-enzyme ratios. Hence, we introduce a new model parameter α to whereby α describes the ratio between the relative expression levels of FCC and SQR enzymes. Our experiments show that sulfur production is the highest at low α values.
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Affiliation(s)
- Karine Kiragosyan
- Wetsus, European Centre of Excellence for Sustainable Water Technology, Oostergoweg 9, 8911, MA, Leeuwarden, the Netherlands
- Environmental Technology, Wageningen University, P.O. Box 17, 6700, AA, Wageningen, the Netherlands
- Corresponding author. Wetsus, European Centre of Excellence for Sustainable Water Technology, Oostergoweg 9, 8911, MA, Leeuwarden, the Netherlands.
| | - Johannes B.M. Klok
- Wetsus, European Centre of Excellence for Sustainable Water Technology, Oostergoweg 9, 8911, MA, Leeuwarden, the Netherlands
- Environmental Technology, Wageningen University, P.O. Box 17, 6700, AA, Wageningen, the Netherlands
- Paqell B.V., Reactorweg 301, 3542, AD, Utrecht, the Netherlands
| | - Karel J. Keesman
- Wetsus, European Centre of Excellence for Sustainable Water Technology, Oostergoweg 9, 8911, MA, Leeuwarden, the Netherlands
- Biobased Chemistry & Technology, Wageningen University, P.O. Box 17, 6700, AA, Wageningen, the Netherlands
| | - Pawel Roman
- Wetsus, European Centre of Excellence for Sustainable Water Technology, Oostergoweg 9, 8911, MA, Leeuwarden, the Netherlands
| | - Albert J.H. Janssen
- Environmental Technology, Wageningen University, P.O. Box 17, 6700, AA, Wageningen, the Netherlands
- Shell, Oostduinlaan 2, 2596, M the Hague, the Netherlands
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Bressani-Ribeiro T, Mota Filho CR, Melo VRD, Bianchetti FJ, Chernicharo CADL. Planning for achieving low carbon and integrated resources recovery from sewage treatment plants in Minas Gerais, Brazil. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2019; 242:465-473. [PMID: 31071623 DOI: 10.1016/j.jenvman.2019.04.103] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/29/2018] [Revised: 04/20/2019] [Accepted: 04/25/2019] [Indexed: 06/09/2023]
Abstract
There is an enormous deficit in sanitation infrastructure in most Brazilian cities. To tackle this challenge, it is crucial to conceive the new sanitation infrastructure based on sustainability principles, including an integrated approach for the management of the liquid, solid and gaseous phases. This study aimed at developing sustainable sewage treatment flowsheets for different scales and regional scenarios in the state of Minas Gerais. Two watersheds were chosen as study areas, due to their remarkable regional importance and socioeconomic and environmental diversity, i.e. Rio das Velhas and Jequitaí-Pacuí. Currently available processes for sewage treatment and resources recovery were assessed based on: literature review and benchmarking of operational practices, experiences reported by sanitation companies, techno-economic feasibility of resource recovery and carbon footprint assessment of anaerobic-based technologies. Social acceptance was also considered. A total of 15 sustainable flowsheets were proposed, comprising passive/natural systems (stabilization ponds, constructed wetlands and controlled land application), anaerobic process combined with natural systems (UASB reactors followed by controlled land application, constructed wetlands or polishing ponds) and compact anaerobic/aerobic systems (UASB reactors followed by activated sludge or trickling filters). Processes selected for small-scale sewage treatment plants (STPs) (people-equivalent - PE < 10,000 inhab.) intended to be integrated into local communities and economic activities. Large-scale STPs (especially those with PE > 100,000 inhab.) were conceived as industries, where a wide range of resources (e.g. sand for non-structural concrete, biogas for electricity, sludge for thermal energy) could be recovered from the influent sewage. Results obtained from the current study could serve as support for decision-making on the planning and implementation of new sustainable sanitation solutions in the state of Minas Gerais and possibly in other regions of Brazil and other developing countries.
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Affiliation(s)
- Thiago Bressani-Ribeiro
- Department of Sanitary and Environmental Engineering, Federal University of Minas Gerais, Belo Horizonte, Brazil.
| | - Cesar Rossas Mota Filho
- Department of Sanitary and Environmental Engineering, Federal University of Minas Gerais, Belo Horizonte, Brazil
| | - Vanessa Rodrigues de Melo
- Department of Sanitary and Environmental Engineering, Federal University of Minas Gerais, Belo Horizonte, Brazil
| | - Fábio José Bianchetti
- Department of Sanitary and Environmental Engineering, Federal University of Minas Gerais, Belo Horizonte, Brazil
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de Rink R, Klok JB, van Heeringen GJ, Sorokin DY, ter Heijne A, Zeijlmaker R, Mos YM, de Wilde V, Keesman KJ, Buisman CJ. Increasing the Selectivity for Sulfur Formation in Biological Gas Desulfurization. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2019; 53:4519-4527. [PMID: 30882225 PMCID: PMC6581417 DOI: 10.1021/acs.est.8b06749] [Citation(s) in RCA: 38] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/07/2023]
Abstract
In the biotechnological desulfurization process under haloalkaline conditions, dihydrogen sulfide (H2S) is removed from sour gas and oxidized to elemental sulfur (S8) by sulfide-oxidizing bacteria. Besides S8, the byproducts sulfate (SO42-) and thiosulfate (S2O32-) are formed, which consume caustic and form a waste stream. The aim of this study was to increase selectivity toward S8 by a new process line-up for biological gas desulfurization, applying two bioreactors with different substrate conditions (i.e., sulfidic and microaerophilic), instead of one (i.e., microaerophilic). A 111-day continuous test, mimicking full scale operation, demonstrated that S8 formation was 96.6% on a molar H2S supply basis; selectivity for SO42- and S2O32- were 1.4 and 2.0% respectively. The selectivity for S8 formation in a control experiment with the conventional 1-bioreactor line-up was 75.6 mol %. At start-up, the new process line-up immediately achieved lower SO42- and S2O32- formations compared to the 1-bioreactor line-up. When the microbial community adapted over time, it was observed that SO42- formation further decreased. In addition, chemical formation of S2O32- was reduced due to biologically mediated removal of sulfide from the process solution in the anaerobic bioreactor. The increased selectivity for S8 formation will result in 90% reduction in caustic consumption and waste stream formation compared to the 1-bioreactor line-up.
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Affiliation(s)
- Rieks de Rink
- Environmental
Technology, Wageningen University, P.O. Box 17, 6700 AA Wageningen, The Netherlands
- Paqell
B.V., Reactorweg 301, 3542 AD Utrecht, The Netherlands
| | - Johannes B.M. Klok
- Paqell
B.V., Reactorweg 301, 3542 AD Utrecht, 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, Prospect 60-let Oktyabrya 7/2, Moscow, Russian Federation
- Department
of Biotechnology, Delft University of Technology, Van der Maasweg 9, 2629 HZ, Delft, The Netherlands
| | - Annemiek ter Heijne
- Environmental
Technology, Wageningen University, P.O. Box 17, 6700 AA Wageningen, The Netherlands
- E-mail:
| | | | - Yvonne M. Mos
- Environmental
Technology, Wageningen University, P.O. Box 17, 6700 AA Wageningen, The Netherlands
| | - Vinnie de Wilde
- Environmental
Technology, Wageningen University, P.O. Box 17, 6700 AA Wageningen, The Netherlands
| | - Karel J. Keesman
- Mathematical
and Statistical methods, Wageningen University, P.O. Box 16, 6700 AA Wageningen, The Netherlands
| | - Cees J.N. Buisman
- Environmental
Technology, Wageningen University, P.O. Box 17, 6700 AA Wageningen, The Netherlands
- Wetsus, European
Centre of Excellence for Sustainable Water
Technology, Oostergoweg
9, 8911 MA Leeuwarden, The Netherlands
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37
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Li L, Xue S, Xi J. Anaerobic oxidation of methane coupled to sulfate reduction: Consortium characteristics and application in co-removal of H 2S and methane. J Environ Sci (China) 2019; 76:238-248. [PMID: 30528014 DOI: 10.1016/j.jes.2018.05.006] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2018] [Revised: 05/09/2018] [Accepted: 05/09/2018] [Indexed: 06/09/2023]
Abstract
Anaerobic sludge from a sewage treatment plant was used to acclimatize microbial colonies capable of anaerobic oxidation of methane (AOM) coupled to sulfate reduction. Clone libraries and fluorescence in situ hybridization were used to investigate the microbial population. Sulfate-reducing bacteria (SRB) (e.g., Desulfotomaculum arcticum and Desulfobulbus propionicus) and anaerobic methanotrophic archaea (ANME) (e.g., Methanosaeta sp. and Methanolinea sp.) coexisted in the enrichment. The archaeal and bacterial cells were randomly or evenly distributed throughout the consortia. Accompanied by sulfate reduction, methane was oxidized anaerobically by the consortia of methane-oxidizing archaea and SRB. Moreover, CH4 and SO42- were consumed by methanotrophs and sulfate reducers with CO2 and H2S as products. The H3CSH produced by methanotrophy was an intermediate product during the process. The methanotrophic enrichment was inoculated in a down-flow biofilter for the treatment of methane and H2S from a landfill site. On average, 93.33% of H2S and 10.71% of methane was successfully reduced in the biofilter. This study tries to provide effective method for the synergistic treatment of waste gas containing sulfur compounds and CH4.
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Affiliation(s)
- Lin Li
- State Key Laboratory of Environmental Aquatic Chemistry, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; National Engineering Laboratory for VOCs Pollution Control Material & Technology, University of Chinese Academy of Sciences, Beijing 101408, China.
| | - Song Xue
- State Key Laboratory of Environmental Aquatic Chemistry, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; National Engineering Laboratory for VOCs Pollution Control Material & Technology, University of Chinese Academy of Sciences, Beijing 101408, China
| | - Jingru Xi
- State Key Laboratory of Environmental Aquatic Chemistry, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; State Key Laboratory of Applied Microbiology Southern China, Guangdong Institute of Microbiology, Guangdong Academy of Sciences, Guangzhou 510070, China; National Engineering Laboratory for VOCs Pollution Control Material & Technology, University of Chinese Academy of Sciences, Beijing 101408, China
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38
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Azevedo LS, Castro IMP, Leal CD, Araújo JC, Chernicharo CAL. Performance and bacterial diversity of bioreactors used for simultaneous removal of sulfide, solids and organic matter from UASB reactor effluents. WATER SCIENCE AND TECHNOLOGY : A JOURNAL OF THE INTERNATIONAL ASSOCIATION ON WATER POLLUTION RESEARCH 2018; 78:1312-1323. [PMID: 30388088 DOI: 10.2166/wst.2018.403] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Two bioreactors were investigated as an alternative to post-treatment of effluent from an upflow anaerobic sludge blanket (UASB) reactor treating domestic sewage, with an aim of oxidizing sulfide into elemental sulfur, and removal of solid and organic material. The bioreactors were operated at different hydraulic retention times (HRTs) (6, 4, and 2 h) and in the presence or absence (control) of packing material (polypropylene rings). Greater sulfide removal efficiencies - 75% (control reactor) and 92% (packed reactor) - were achieved in both reactors for an HRT of 6 h. Higher organic matter (COD) and solid (TSS) removal levels were observed in the packed reactor, which produced effluent with low COD (100 mg CODL-1) and TSS concentrations (30 mg TSSL-1). Denaturing gradient gel electrophoresis results revealed that a metabolically diverse bacterial community was present in both bioreactors, with sequences related to heterotrophic bacteria, sulfur bacteria (Thiocapsa, Sulfurimonas sp., Chlorobaculum sp., Chromatiales and Sulfuricellales), phototrophic purple non-sulfur bacteria (Rhodopseudomonas, Rhodocyclus sp.) and cyanobacteria. The packed reactor presented higher extracellular sulfur formation and potential for elemental sulfur recovery was seen. Higher efficiencies related to the packed reactor were attributed to the presence of packing material and higher cell retention time. The studied bioreactors seemed to be a simple and low-cost alternative for the post-treatment of anaerobic effluent.
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Affiliation(s)
- L S Azevedo
- Department of Sanitary and Environmental Engineering, Federal University of Minas Gerais, Av. Antônio Carlos 6.627, Campus Pampulha, 31.270-901, Belo Horizonte, MG, Brazil E-mail:
| | - I M P Castro
- Department of Sanitary and Environmental Engineering, Federal University of Minas Gerais, Av. Antônio Carlos 6.627, Campus Pampulha, 31.270-901, Belo Horizonte, MG, Brazil E-mail:
| | - C D Leal
- Department of Sanitary and Environmental Engineering, Federal University of Minas Gerais, Av. Antônio Carlos 6.627, Campus Pampulha, 31.270-901, Belo Horizonte, MG, Brazil E-mail:
| | - J C Araújo
- Department of Sanitary and Environmental Engineering, Federal University of Minas Gerais, Av. Antônio Carlos 6.627, Campus Pampulha, 31.270-901, Belo Horizonte, MG, Brazil E-mail:
| | - C A L Chernicharo
- Department of Sanitary and Environmental Engineering, Federal University of Minas Gerais, Av. Antônio Carlos 6.627, Campus Pampulha, 31.270-901, Belo Horizonte, MG, Brazil E-mail:
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Lin S, Mackey HR, Hao T, Guo G, van Loosdrecht MCM, Chen G. Biological sulfur oxidation in wastewater treatment: A review of emerging opportunities. WATER RESEARCH 2018; 143:399-415. [PMID: 29986249 DOI: 10.1016/j.watres.2018.06.051] [Citation(s) in RCA: 108] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/27/2018] [Revised: 06/15/2018] [Accepted: 06/22/2018] [Indexed: 06/08/2023]
Abstract
Sulfide prevails in both industrial and municipal waste streams and is one of the most troublesome issues with waste handling. Various technologies and strategies have been developed and used to deal with sulfide for decades, among which biological means make up a considerable portion due to their low operation requirements and flexibility. Sulfur bacteria play a vital role in these biotechnologies. In this article, conventional biological approaches dealing with sulfide and functional microorganisms are systematically reviewed. Linking the sulfur cycle with other nutrient cycles such as nitrogen or phosphorous, and with continued focus of waste remediation by sulfur bacteria, has led to emerging biotechnologies. Furthermore, opportunities for energy harvest and resource recovery based on sulfur bacteria are also discussed. The electroactivity of sulfur bacteria indicates a broad perspective of sulfur-based bioelectrochemical systems in terms of bioelectricity production and bioelectrochemical synthesis. The considerable PHA accumulation, high yield and anoxygenic growth conditions in certain phototrophic sulfur bacteria could provide an interesting alternative for bioplastic production. In this review, new merits of biological sulfide oxidation from a traditional environmental management perspective as well as a waste to resource perspective are presented along with their potential applications.
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Affiliation(s)
- Sen Lin
- Department of Civil and Environmental Engineering, The Hong Kong University of Science & Technology, Clear Water Bay, Kowloon, Hong Kong, China
| | - Hamish R Mackey
- Division of Sustainable Development, College of Science and Engineering, Hamad Bin Khalifa University, Education City, Doha, Qatar
| | - Tianwei Hao
- 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 & Technology, Clear Water Bay, Kowloon, Hong Kong, China.
| | - Gang Guo
- Department of Civil and Environmental Engineering, The Hong Kong University of Science & Technology, Clear Water Bay, Kowloon, Hong Kong, China
| | - Mark C M van Loosdrecht
- Department of Biotechnology, Delft University of Technology, Julianalaan 67, 2628 BC, Delft, The Netherlands
| | - Guanghao Chen
- Department of Civil and Environmental Engineering, The Hong Kong University of Science & Technology, Clear Water Bay, Kowloon, Hong Kong, China; Fok Ying Tung Research Institute, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, 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, Clear Water Bay, Kowloon, Hong Kong, China.
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40
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Wu C, Li Y, Zhou Y, Li Z, Zhang S, Liu H. Upgrading the Chinese biggest petrochemical wastewater treatment plant: Technologies research and full scale application. THE SCIENCE OF THE TOTAL ENVIRONMENT 2018; 633:189-197. [PMID: 29573685 DOI: 10.1016/j.scitotenv.2018.03.164] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/27/2017] [Revised: 03/02/2018] [Accepted: 03/16/2018] [Indexed: 06/08/2023]
Abstract
The components of petrochemical wastewater (PCWW) are very complex and it is one of the most important sources of organic micropollutants (OMPs) in water bodies. To improve the effluent qualities of PCWW, the Chinese government has promulgated a new Emission Standard of Pollutants for Petroleum Chemistry Industry. More than 60 types of OMPs, most of which are toxic organics, are added and strictly limited in the standard. Based on the bench- and pilot-scale experiments, a pretreatment (microaerobic hydrolysis and acidification, MOHA), biological (anoxic/oxic process, A/O) and advanced treatment (micro-flocculation dynasand filtration and catalytic ozonation, MFDF-CO) integrated process is proposed. The full-scale application in the Chinese biggest petrochemical wastewater treatment plant has demonstrated that the performance of the integrated process is stable and it can significantly improve the effluent qualities. The effluent COD decreased from 84.7 to 47.0mg/L and most of the OMPs were removed. The EC50 of the effluent for luminescent bacteria assay, algal growth inhibition, Daphnia magna inhibition test and zebrafish eggs test are all higher than 100% and the induction rate (IR) for genotoxicity is only 0.76. The energy demand, however, with the electricity consumption increase by 44.1%, is very high for OMPs removal, leading to high indirect carbon emission.
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Affiliation(s)
- Changyong Wu
- State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing 100012, China; Research Center of Water Pollution Control Technology, Chinese Research Academy of Environment Sciences, Beijing 100012, China
| | - Yanan Li
- School of Marine Science and Technology and Environment, Dalian Ocean University, Dalian 116023, China
| | - Yuexi Zhou
- State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing 100012, China; Research Center of Water Pollution Control Technology, Chinese Research Academy of Environment Sciences, Beijing 100012, China.
| | - Zhimin Li
- Jilin Petrochemical Wastewater Treatment Plant, Jilin Petrochemical Company of PetroChina, Jilin 132000, China
| | - Siyu Zhang
- School of Chemical & Environmental Engineering, China University of Mining & Technology, Beijing 100083, China
| | - Hengming Liu
- School of Marine Science and Technology and Environment, Dalian Ocean University, Dalian 116023, China
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41
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Kalantari H, Nosrati M, Shojaosadati SA, Shavandi M. Investigation of transient forms of sulfur during biological treatment of spent caustic. ENVIRONMENTAL TECHNOLOGY 2018; 39:1597-1606. [PMID: 28554258 DOI: 10.1080/09593330.2017.1334707] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/11/2016] [Accepted: 05/20/2017] [Indexed: 06/07/2023]
Abstract
In the present study, the production of various transient forms of sulfur during biological oxidation of sulfidic spent caustics under haloalkaline conditions in a stirred tank bioreactor is investigated. Also, the effects of abiotic aeration (chemical oxidation), dissolved oxygen (DO) concentration and sodium concentration on forms of sulfur during biological treatment are demonstrated. Thioalkalivibrio versutus strain was used for sulfide oxidation in spent caustic (SC). The aeration had an important effect on sulfide oxidation and its final products. At DO concentrations above 2 mg l-1, majority of sulfide was oxidized to sulfate. Maximum sulfide removal efficiency (%R) and yield of sulfate production [Formula: see text] was obtained in Na+ concentration ranging from 0.6 to 2 M. Abiotic aeration, which is the most important factor of production of thiosulfate, resulted in the formation of an undesired product-polysulfide. However, abiotic aeration can be used as a pretreatment to biological treatment. In the bioreactor the removal efficiency was obtained as 82.7% and various forms of sulfur such as polysulfide, biosulfur, thiosulfate and sulfate was observed during biological treatment of SC.
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Affiliation(s)
- Hamed Kalantari
- a Biotechnology Group, Faculty of Chemical Engineering , Tarbiat Modares University , Tehran , Iran
| | - Mohsen Nosrati
- a Biotechnology Group, Faculty of Chemical Engineering , Tarbiat Modares University , Tehran , Iran
| | - Seyed Abbas Shojaosadati
- a Biotechnology Group, Faculty of Chemical Engineering , Tarbiat Modares University , Tehran , Iran
| | - Mahmoud Shavandi
- b Environment and Biotechnology Group , Research Institute of Petroleum Industry , Tehran , Iran
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Arellano-García L, Le Borgne S, Revah S. Simultaneous treatment of dimethyl disulfide and hydrogen sulfide in an alkaline biotrickling filter. CHEMOSPHERE 2018; 191:809-816. [PMID: 29145133 DOI: 10.1016/j.chemosphere.2017.10.096] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/27/2017] [Revised: 06/26/2017] [Accepted: 10/16/2017] [Indexed: 05/20/2023]
Abstract
Foul odors comprise generally a complex mixture of molecules, where reduced sulfur compounds play a key role due to their toxicity and low odor threshold. Previous reports on treating mixtures of sulfur compounds in single biofilters showed that hydrogen sulfide (H2S) interferes with the removal and degradation of other sulfur compounds. In this study, hydrogen sulfide (H2S) and dimethyl disulfide (DMDS) were fed to an alkaline biotrickling filter (ABTF) at pH 10, to evaluate the simultaneous removal of inorganic and organic sulfur compounds in a single, basic-pH system. The H2S-DMDS mixture was treated for more than 200 days, with a gas residence time of 40 s, attaining elimination capacities of 86 gDMDS m-3 h-1 and 17 gH2S m-3 h-1 and removal efficiencies close to 100%. Conversion of H2S and DMDS to sulfate was generally above 70%. Consumption of sulfide and formaldehyde was verified by respirometry, suggesting the coexistence of both methylotrophic and chemoautotrophic breakdown pathways by the immobilized alkaliphilic biomass. The molecular biology analysis showed that the long-term acclimation of the ABTF led to a great variety of bacteria, predominated by Thioalkalivibrio species, while fungal community was notoriously less diverse and dominated by Fusarium species.
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Affiliation(s)
- Luis Arellano-García
- Depto. Procesos y Tecnología, UAM Cuajimalpa, Av. Vasco de Quiroga 4871, Mexico City, 05300, Mexico
| | - Sylvie Le Borgne
- Depto. Procesos y Tecnología, UAM Cuajimalpa, Av. Vasco de Quiroga 4871, Mexico City, 05300, Mexico
| | - Sergio Revah
- Depto. Procesos y Tecnología, UAM Cuajimalpa, Av. Vasco de Quiroga 4871, Mexico City, 05300, Mexico.
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43
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Zhang J, Zhu G, Lv N, Pan X, Li L, Ren ZJ. The Establishment and Characteristics of Dominant Syntrophic Propionate Oxidation Bacteria and Sulfate-Reducing Bacteria in a Mixed Culture. CHEM ENG COMMUN 2017. [DOI: 10.1080/00986445.2017.1328410] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Affiliation(s)
- Jingrui Zhang
- Key Laboratory of Urban Pollutant Conversion, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen, China
| | - Gefu Zhu
- Key Laboratory of Urban Pollutant Conversion, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen, China
| | - Nan Lv
- Key Laboratory of Urban Pollutant Conversion, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen, China
| | - Xiaofang Pan
- Key Laboratory of Urban Pollutant Conversion, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen, China
| | - Lixin Li
- College of Environmental and Chemical Engineering, Heilongjiang University of Science and Technology, Harbin, China
| | - Zhiyong Jason Ren
- Department of Civil, Environmental, and Architectural Engineering, University of Colorado Boulder, Boulder, Colorado, USA
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44
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Zhao J, Fang D, Zhang P, Zhou L. Long-term effects of increasing acidity on low-pH sulfate-reducing bioprocess and bacterial community. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2017; 24:4067-4076. [PMID: 27933494 DOI: 10.1007/s11356-016-8147-2] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/15/2016] [Accepted: 11/23/2016] [Indexed: 06/06/2023]
Abstract
An ethanol-fed, sulfate-reducing anaerobic baffled reactor was operated over a period of 260 days to assess the effects of sequentially more acidic conditions (pH 4.5-2.5) on sulfate reduction and bacterial community. Results showed that the reactor could reduce sulfate and generate alkalinity at progressively lower pH values of 4.5, 3.5, and 2.5 in a synthetic wastewater containing 2500 mg/L sulfate. About 93.9% of the influent sulfate was removed at a rate of 4691 mg/L/day, and the effluent pH was increased to 6.8 even when challenged with influent pH as low as 2.5. Illumina MiSeq sequencing revealed that a step decrease in influent pH from 4.5 to 2.5 resulted in noticeable decrease in the biodiversity inside the sulfidogenic reactor. Additionally, complete and incomplete organic oxidizers Desulfobacter and Desulfovibrio were observed to be the most dominant sulfate reducers at pH 2.5, sustaining the low-pH, high-rate sulfate removal and alkalinity generation.
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Affiliation(s)
- Jing Zhao
- College of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing, 210095, China
| | - Di Fang
- College of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing, 210095, China.
| | - Pengfei Zhang
- College of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing, 210095, China
| | - Lixiang Zhou
- College of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing, 210095, China
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45
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Mu T, Yang M, Zhao J, Sharshar MM, Tian J, Xing J. Improvement of desulfurizing activity of haloalkaliphilic Thialkalivibrio versutus SOB306 with the expression of Vitreoscilla hemoglobin gene. Biotechnol Lett 2016; 39:447-452. [PMID: 27999973 DOI: 10.1007/s10529-016-2266-1] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2016] [Accepted: 11/29/2016] [Indexed: 01/18/2023]
Abstract
OBJECTIVE To construct efficient transformation and expression system and further improve desulfurizing activity of cells through expression of Vitreoscilla hemoglobin (VHb) in haloalkaliphilic Thialkalivibrio versutus SOB306. RESULTS We transferred plasmids pKT230 and pBBR-smr into T. versutus SOB306 via a conjugation method. We identified four promoters from among several predicted promoters by scoring for streptomycin resistance, and finally selected tac and p3 based on the efficiency of expression of red fluorescent protein (RFP). Expression of RFP when regulated by tac was more than three times that of p3 in SOB306. Further, we expressed VHb under the control of tac promoter in SOB306. Expression of VHb was verified using CO-difference spectra. The results showed that VHb expression can boost sulfur metabolism, as evidenced by an increase of about 11.7 ± 1.8% in the average rate of thiosulfate removal in the presence of VHb. CONCLUSION A conjugation transfer and an expression system for Thialkalivibrio, has been developed for the first time and used for expression of VHb to improve desulfurizing activity.
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Affiliation(s)
- Tingzhen Mu
- State Key Laboratory of Biochemical Engineering and Key Laboratory of Green Process and Engineering, Institute of Process Engineering, Chinese Academy of Sciences, P.O. Box 353, Beijing, 100190, People's Republic of China.,University of Chinese Academy of Sciences, Beijing, 100049, People's Republic of China
| | - Maohua Yang
- State Key Laboratory of Biochemical Engineering and Key Laboratory of Green Process and Engineering, Institute of Process Engineering, Chinese Academy of Sciences, P.O. Box 353, Beijing, 100190, People's Republic of China
| | - Jixiang Zhao
- University of Science & Technology Beijing, 30 Xueyuan Road, Haidian District, Beijing, 100083, People's Republic of China
| | - Moustafa Mohammed Sharshar
- State Key Laboratory of Biochemical Engineering and Key Laboratory of Green Process and Engineering, Institute of Process Engineering, Chinese Academy of Sciences, P.O. Box 353, Beijing, 100190, People's Republic of China.,University of Chinese Academy of Sciences, Beijing, 100049, People's Republic of China
| | - Jiangnan Tian
- State Key Laboratory of Biochemical Engineering and Key Laboratory of Green Process and Engineering, Institute of Process Engineering, Chinese Academy of Sciences, P.O. Box 353, Beijing, 100190, People's Republic of China.,University of Chinese Academy of Sciences, Beijing, 100049, People's Republic of China
| | - Jianmin Xing
- State Key Laboratory of Biochemical Engineering and Key Laboratory of Green Process and Engineering, Institute of Process Engineering, Chinese Academy of Sciences, P.O. Box 353, Beijing, 100190, People's Republic of China. .,University of Chinese Academy of Sciences, Beijing, 100049, People's Republic of China.
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46
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Roman P, Klok JBM, Sousa JAB, Broman E, Dopson M, Van Zessen E, Bijmans MFM, Sorokin DY, Janssen AJH. Selection and Application of Sulfide Oxidizing Microorganisms Able to Withstand Thiols in Gas Biodesulfurization Systems. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2016; 50:12808-12815. [PMID: 27934286 DOI: 10.1021/acs.est.6b04222] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/07/2023]
Abstract
After the first commercial applications of a new biological process for the removal of hydrogen sulfide (H2S) from low pressure biogas, the need arose to broaden the operating window to also enable the removal of organosulfur compounds from high pressure sour gases. In this study we have selected microorganisms from a full-scale biodesulfurization system that are capable of withstanding the presence of thiols. This full-scale unit has been in stable operation for more than 10 years. We investigated the microbial community by using high-throughput sequencing of 16S rRNA gene amplicons which showed that methanethiol gave a competitive advantage to bacteria belonging to the genera Thioalkalibacter (Halothiobacillaceae family) and Alkalilimnicola (Ectothiorhosdospiraceae family). The sulfide-oxidizing potential of the acclimatized population was investigated under elevated thiol loading rates (4.5-9.1 mM d-1), consisting of a mix of methanethiol, ethanethiol, and propanethiol. With this biomass, it was possible to achieve a stable bioreactor operation at which 80% of the supplied H2S (61 mM d-1) was biologically oxidized to elemental sulfur. The remainder was chemically produced thiosulfate. Moreover, we found that a conventionally applied method for controlling the oxygen supply to the bioreactor, that is, by maintaining a redox potential set-point value, appeared to be ineffective in the presence of thiols.
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Affiliation(s)
- Pawel Roman
- Sub-Department of Environmental Technology, Wageningen University , P.O. Box 17, 6700 AA Wageningen, The Netherlands
- Wetsus, European Centre of Excellence for Sustainable Water Technology, Oostergoweg 9, 8911 MA Leeuwarden, The Netherlands
| | - Johannes B M Klok
- Wetsus, European Centre of Excellence for Sustainable Water Technology, Oostergoweg 9, 8911 MA Leeuwarden, The Netherlands
- Paqell, Asterweg 109, 1031 HM Amsterdam, The Netherlands
| | - João A B Sousa
- Wetsus, European Centre of Excellence for Sustainable Water Technology, Oostergoweg 9, 8911 MA Leeuwarden, The Netherlands
- Laboratory of Microbiology, Wageningen University , Dreijenplein 10, 6703 HB Wageningen, The Netherlands
| | - Elias Broman
- Centre for Ecology and Evolution in Microbial model Systems (EEMiS), Linnaeus University , Kalmar, Sweden
| | - Mark Dopson
- Centre for Ecology and Evolution in Microbial model Systems (EEMiS), Linnaeus University , Kalmar, Sweden
| | - Erik Van Zessen
- Paques B.V., Tjalke de Boerstrjitte 24, 8561 EL Balk, The Netherlands
| | - Martijn F M Bijmans
- 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 , Prospect 60-let Oktyabrya 7/2, 117811 Moscow, Russia
- Department of Biotechnology, Delft University of Technology , Van der Maasweg 9, 2629 HZ Delft, The Netherlands
| | - Albert J H Janssen
- Sub-Department of Environmental Technology, Wageningen University , P.O. Box 17, 6700 AA Wageningen, The Netherlands
- Shell Technology Centre Bangalore, RMZ Centennial Campus B, Kundalahalli Main Road, Bengaluru 560 048 India
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47
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Roman P, Lipińska J, Bijmans MFM, Sorokin DY, Keesman KJ, Janssen AJH. Inhibition of a biological sulfide oxidation under haloalkaline conditions by thiols and diorgano polysulfanes. WATER RESEARCH 2016; 101:448-456. [PMID: 27295619 DOI: 10.1016/j.watres.2016.06.003] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/07/2016] [Revised: 05/30/2016] [Accepted: 06/02/2016] [Indexed: 05/27/2023]
Abstract
A novel approach has been developed for the simultaneous description of reaction kinetics to describe the formation of polysulfide and sulfate anions from the biological oxidation of hydrogen sulfide (H2S) using a quick, sulfide-dependent respiration test. Next to H2S, thiols are commonly present in sour gas streams. We investigated the inhibition mode and the corresponding inhibition constants of six thiols and the corresponding diorgano polysulfanes on the biological oxidation of H2S. A linear relationship was found between the calculated IC50 values and the lipophilicity of the inhibitors. Moreover, a mathematical model was proposed to estimate the biomass activity in the absence and presence of sulfurous inhibitors. The biomass used in the respiration tests originated from a full-scale biodesulfurization reactor. A microbial community analysis of this biomass revealed that two groups of microorganism are abundant, viz. Ectothiorhodospiraceae and Piscirickettsiaceae.
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Affiliation(s)
- Pawel Roman
- Sub-department of Environmental Technology, Wageningen University, P.O. Box 17, 6700 AA Wageningen, The Netherlands; Wetsus, European Centre of Excellence for Sustainable Water Technology, Oostergoweg 9, 8911 MA Leeuwarden, The Netherlands.
| | - Joanna Lipińska
- Wetsus, European Centre of Excellence for Sustainable Water Technology, Oostergoweg 9, 8911 MA Leeuwarden, The Netherlands; Faculty of Chemistry, Warsaw University of Technology, Noakowskiego St. 3, 00-664 Warsaw, Poland
| | - Martijn F M Bijmans
- 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, Prospect 60-let Oktyabrya 7/2, 117811 Moscow, Russia; Department of Biotechnology, Delft University of Technology, Julianalaan 67, 2628 BC Delft, The Netherlands
| | - Karel J Keesman
- Wetsus, European Centre of Excellence for Sustainable Water Technology, Oostergoweg 9, 8911 MA Leeuwarden, The Netherlands; Biobased Chemistry & Technology, Wageningen University, P.O. Box 17, 6700 AA Wageningen, The Netherlands
| | - Albert J H Janssen
- Sub-department of Environmental Technology, Wageningen University, P.O. Box 17, 6700 AA Wageningen, The Netherlands; Shell Technology Centre Bangalore, RMZ Centennial Campus B, Kundalahalli Main Road, 560 048 Bengaluru, India
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48
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Dias MF, Colturato LF, de Oliveira JP, Leite LR, Oliveira G, Chernicharo CA, de Araújo JC. Metagenomic analysis of a desulphurisation system used to treat biogas from vinasse methanisation. BIORESOURCE TECHNOLOGY 2016; 205:58-66. [PMID: 26803795 DOI: 10.1016/j.biortech.2016.01.007] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/04/2015] [Revised: 01/03/2016] [Accepted: 01/05/2016] [Indexed: 06/05/2023]
Abstract
We investigated the response of microbial community to changes in H2S loading rate in a microaerated desulphurisation system treating biogas from vinasse methanisation. H2S removal efficiency was high, and both COD and DO seemed to be important parameters to biomass activity. DGGE analysis retrieved sequences of sulphide-oxidising bacteria (SOB), such as Thioalkalimicrobium sp. Deep sequencing analysis revealed that the microbial community was complex and remained constant throughout the experiment. Most sequences belonged to Firmicutes and Proteobacteria, and, to a lesser extent, Bacteroidetes, Chloroflexi, and Synergistetes. Despite the high sulphide removal efficiency, the abundance of the taxa of SOB was low, and was negatively affected by the high sulphide loading rate.
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Affiliation(s)
- Marcela França Dias
- Department of Sanitary and Environmental Engineering, Federal University of Minas Gerais, Antonio Carlos Avenue, 6627, Belo Horizonte, Minas Gerais State 31270-90, Brazil
| | - Luis Felipe Colturato
- Department of Sanitary and Environmental Engineering, Federal University of Minas Gerais, Antonio Carlos Avenue, 6627, Belo Horizonte, Minas Gerais State 31270-90, Brazil; Methanum Waste and Energy, Alameda do Ingá, 840, Room 908, Vale do Sereno, Nova Lima, Minas Gerais State 34.000-000, Brazil
| | - João Paulo de Oliveira
- Methanum Waste and Energy, Alameda do Ingá, 840, Room 908, Vale do Sereno, Nova Lima, Minas Gerais State 34.000-000, Brazil
| | - Laura Rabelo Leite
- Genomics and Computational Biology Group, René Rachou Research Center, Oswaldo Cruz Foundation, Augusto de Lima Avenue, 1717, Belo Horizonte, Minas Gerais State 30.190-002, Brazil
| | - Guilherme Oliveira
- Genomics and Computational Biology Group, René Rachou Research Center, Oswaldo Cruz Foundation, Augusto de Lima Avenue, 1717, Belo Horizonte, Minas Gerais State 30.190-002, Brazil
| | - Carlos Augusto Chernicharo
- Department of Sanitary and Environmental Engineering, Federal University of Minas Gerais, Antonio Carlos Avenue, 6627, Belo Horizonte, Minas Gerais State 31270-90, Brazil
| | - Juliana Calabria de Araújo
- Department of Sanitary and Environmental Engineering, Federal University of Minas Gerais, Antonio Carlos Avenue, 6627, Belo Horizonte, Minas Gerais State 31270-90, Brazil.
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49
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Hu J, Xue Y, Li J, Wang L, Zhang S, Wang YN, Gao MT. Characterization of a designed synthetic autotrophic–heterotrophic consortia for fixing CO2 without light. RSC Adv 2016. [DOI: 10.1039/c6ra13118b] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
CO2 fixation efficiency of the devised synthetic microbial consortia with both autotrophic–autotrophic and autotrophic–heterotrophic microbial interactions were higher than the sum of theoretical CO2 fixation efficiency of the microbial components.
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Affiliation(s)
- Jiajun Hu
- Shanghai Key Laboratory of Bio-Energy Crops
- School of Life Sciences
- Shanghai University
- Shanghai 200444
- China
| | - Yiyun Xue
- Shanghai Key Laboratory of Bio-Energy Crops
- School of Life Sciences
- Shanghai University
- Shanghai 200444
- China
| | - Jixiang Li
- Shanghai Advanced Research Institute
- Chinese Academy of Sciences
- Shanghai 20110
- China
| | - Lei Wang
- State Key Laboratory of Pollution Control and Resource Reuse
- School of Environmental Science and Engineering
- Tongji University
- Shanghai 200092
- China
| | - Shiping Zhang
- Shanghai Advanced Research Institute
- Chinese Academy of Sciences
- Shanghai 20110
- China
| | - Ya-nan Wang
- State Key Laboratory of Pollution Control and Resource Reuse
- School of Environmental Science and Engineering
- Tongji University
- Shanghai 200092
- China
| | - Min-tian Gao
- Shanghai Key Laboratory of Bio-Energy Crops
- School of Life Sciences
- Shanghai University
- Shanghai 200444
- China
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50
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Roman P, Bijmans MFM, Janssen AJH. Influence of methanethiol on biological sulphide oxidation in gas treatment system. ENVIRONMENTAL TECHNOLOGY 2016; 37:1693-703. [PMID: 26652658 DOI: 10.1080/09593330.2015.1128001] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/07/2023]
Abstract
Inorganic and organic sulphur compounds such as hydrogen sulphide (H2S) and thiols (RSH) are unwanted components in sour gas streams (e.g. biogas and refinery gases) because of their toxicity, corrosivity and bad smell. Biological treatment processes are often used to remove H2S at small and medium scales (<50 tons per day of H2S). Preliminarily research by our group focused on achieving maximum sulphur production from biological H2S oxidation in the presence of methanethiol. In this paper the underlying principles have been further studied by assessing the effect of methanethiol on the biological conversion of H2S under a wide range of redox conditions covering not only sulphur but also sulphate-producing conditions. Furthermore, our experiments were performed in an integrated system consisting of a gas absorber and a bioreactor in order to assess the effect of methanethiol on the overall gas treatment efficiency. This study shows that methanethiol inhibits the biological oxidation of H2S to sulphate by way of direct suppression of the cytochrome c oxidase activity in biomass, whereas the oxidation of H2S to sulphur was hardly affected. We estimated the kinetic parameters of biological H2S oxidation that can be used to develop a mathematical model to quantitatively describe the biodesulphurization process. Finally, it was found that methanethiol acts as a competitive inhibitor; therefore, its negative effect can be minimized by increasing the enzyme (biomass) concentration and the substrate (sulphide) concentration, which in practice means operating the biodesulphurization systems under low redox conditions.
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Affiliation(s)
- Pawel Roman
- a Sub-department of Environmental Technology , Wageningen , The Netherlands
- b Wetsus , European Centre of Excellence for Sustainable Water Technology , Leeuwarden , The Netherlands
| | - Martijn F M Bijmans
- b Wetsus , European Centre of Excellence for Sustainable Water Technology , Leeuwarden , The Netherlands
| | - Albert J H Janssen
- a Sub-department of Environmental Technology , Wageningen , The Netherlands
- c Shell Technology Centre Bangalore , Bengaluru , India
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