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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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Shihab MS, Alp K, Türker M, Akmirza I, Mhemid RK. Removal of ethanethiol using a biotrickling filter with nitrate as an electron acceptor. ENVIRONMENTAL TECHNOLOGY 2020; 41:1738-1752. [PMID: 30418102 DOI: 10.1080/09593330.2018.1545804] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/11/2018] [Accepted: 11/02/2018] [Indexed: 06/09/2023]
Abstract
Many studies have discussed the biotreatment of ethanethiol (ET) under aerobic conditions. However, O2 free conditions offer bio-conversion of ET gas into elemental sulphur and/or sulphate using [Formula: see text] as electron acceptor, and this has been not studied. In this study, an anoxic biotrickling filter was tested in lab-scale conditions with ET/[Formula: see text] ratio 0.74 and 0.34 mole/mole to remove malodorous ET waste gas. The study examined the effect of three operational parameters: ET inlet concentrations (150, 300, 800, and 1500 mg/m3), trickling velocities (0.12, 0.18, 0.24, 0.3, and 0.45 m/h), and empty bed residence times (30, 60, 90, and 120 s). It found that the effect of trickling velocity on removal efficiency depended on inlet concentrations; 0.24 m/h trickling velocity resulted in efficient ET removal (higher than 90.8% for 150 mg/m3 of inlet concentration) while 0.45 m/h trickling velocity could only achieve a removal of 80.6% for 1500 mg/m3 of inlet concentration at fixed EBRT 60 s. Increasing the EBRT up to 60 s was adequate to achieve removal efficiency, i.e. 92 and 80% for ET inlet concentrations 150 and 1500 mg/m3 respectively, and the maximum elimination capacity was 75.18 g/m3/h at 0.45 m/h. Overall, the anoxic conditions enhanced the low oxidation rates of ET in an anoxic biotrickling filter despite mass transfer limitations and poor solubility of ET.
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Affiliation(s)
- Mohammed Salim Shihab
- Department of Environmental Engineering, Istanbul Technical University, Istanbul, Turkey
- Department of Environmental Engineering, University of Mosul, Mosul, Iraq
| | - Kadir Alp
- Department of Environmental Engineering, Istanbul Technical University, Istanbul, Turkey
| | | | - Ilker Akmirza
- Department of Environmental Engineering, Istanbul Technical University, Istanbul, Turkey
- Department of Chemical Engineering and Environmental Technology, University of Valladolid, Valladolid, Spain
| | - Rasha Khalid Mhemid
- Department of Environmental Engineering, Istanbul Technical University, Istanbul, Turkey
- College of Environmental Science and Technology, University of Mosul, Mosul, Iraq
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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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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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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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6
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Treatment of Sulfidic Wastewater Using Iron Salts. ARABIAN JOURNAL FOR SCIENCE AND ENGINEERING 2016. [DOI: 10.1007/s13369-016-2315-z] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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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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8
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Giri BS, Goswami M, Pandey R, Kim K. Kinetics and biofiltration of dimethyl sulfide emitted from P&P industry. Biochem Eng J 2015. [DOI: 10.1016/j.bej.2015.02.038] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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9
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Roman P, Veltman R, Bijmans MFM, Keesman KJ, Janssen AJH. Effect of Methanethiol Concentration on Sulfur Production in Biological Desulfurization Systems under Haloalkaline Conditions. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2015; 49:9212-21. [PMID: 26154624 DOI: 10.1021/acs.est.5b01758] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/07/2023]
Abstract
Bioremoval of H2S from gas streams became popular in recent years because of high process efficiency and low operational costs. To expand the scope of these processes to gas streams containing volatile organic sulfur compounds, like thiols, it is necessary to provide new insights into their impact on overall biodesulfurization process. Published data on the effect of thiols on biodesulfurization processes are scarce. In this study, we investigated the effect of methanethiol on the selectivity for sulfur production in a bioreactor integrated with a gas absorber. This is the first time that the inhibition of biological sulfur formation by methanethiol is investigated. In our reactor system, inhibition of sulfur production started to occur at a methanethiol loading rate of 0.3 mmol L(-1) d(-1). The experimental results were also described by a mathematical model that includes recent findings on the mode of biomass inhibition by methanethiol. We also found that the negative effect of methanethiol can be mitigated by lowering the salinity of the bioreactor medium. Furthermore, we developed a novel approach to measure the biological activity by sulfide measurements using UV-spectrophotometry. On the basis of this measurement method, it is possible to accurately estimate the unknown kinetic parameters in the mathematical model.
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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
| | - René Veltman
- ‡Wetsus, European Centre of Excellence for Sustainable Water Technology, Oostergoweg 9, 8911 MA Leeuwarden, The Netherlands
| | - Martijn F M Bijmans
- ‡Wetsus, European Centre of Excellence for Sustainable Water Technology, Oostergoweg 9, 8911 MA Leeuwarden, The Netherlands
| | - Karel J Keesman
- †Sub-department of Environmental 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, Bengaluru 560 048 India
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González-Sánchez A, Arellano-García L, Bonilla-Blancas W, Baquerizo G, Hernández S, Gabriel D, Revah S. Kinetic Characterization by Respirometry of Volatile Organic Compound-Degrading Biofilms from Gas-Phase Biological Filters. Ind Eng Chem Res 2014. [DOI: 10.1021/ie503327f] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Armando González-Sánchez
- Departamento
de Procesos y Tecnología, Universidad Autónoma Metropolitana Cuajimalpa, Mexico City, 05300, Mexico
- Instituto
de Ingeniería, Universidad Nacional Autónoma de México (UNAM), Circuito Escolar, Ciudad Universitaria, Mexico City, 04510, Mexico
| | - Luis Arellano-García
- Posgrado
en Ingeniería Química. Departamento de Ingeniería
de Procesos e Hidráulica, Universidad Autónoma Metropolitana Iztapalapa, Mexico City, 09340, Mexico
| | - Wenceslao Bonilla-Blancas
- Posgrado
en Ingeniería Química. Departamento de Ingeniería
de Procesos e Hidráulica, Universidad Autónoma Metropolitana Iztapalapa, Mexico City, 09340, Mexico
- Tecnológico de Estudios Superiores de Ecatepec, Av. Tecnológico S/N, Col. Valle Anáhuac, 55210, Ecatepec de Morelos, Mexico
| | - Guillermo Baquerizo
- Departamento
de Procesos y Tecnología, Universidad Autónoma Metropolitana Cuajimalpa, Mexico City, 05300, Mexico
- Irstea, UR MALY,
Epure, Centre de Lyon-Villeurbanne, F-69626 Villeurbanne, France
| | - Sergio Hernández
- Departamento
de Procesos y Tecnología, Universidad Autónoma Metropolitana Cuajimalpa, Mexico City, 05300, Mexico
| | - David Gabriel
- Departament
d’Enginyeria Química, Universitat Autònoma de Barcelona, Campus de Bellaterra, Barcelona, 08193, Spain
| | - Sergio Revah
- Departamento
de Procesos y Tecnología, Universidad Autónoma Metropolitana Cuajimalpa, Mexico City, 05300, Mexico
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Zhang CZ, Zhang WJ, Xu J. Isolation and identification of methanethiol-utilizing bacterium CZ05 and its application in bio-trickling filter of biogas. BIORESOURCE TECHNOLOGY 2013; 150:338-343. [PMID: 24185035 DOI: 10.1016/j.biortech.2013.10.024] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/16/2013] [Revised: 10/01/2013] [Accepted: 10/07/2013] [Indexed: 06/02/2023]
Abstract
A bacterium capable of methanethiol (MT) degradation was enriched and isolated by employing activated sewage sludge as the inoculum in a mineral medium containing MT. The isolate was identified as Paenibacillus polymyxa CZ05 through a Biolog test and 16S rDNA sequencing. This strain can utilize both organic and inorganic media and thrives at pH 4 to 9. The batch culture showed that the strain can degrade MT better in the No. 4 medium than in the No. 1 medium. A series-operating biotrickling filter with lava stone as the carrier was employed to test the application of P. polymyxa CZ05 in the removal of MT in simulated biogas. Long-term experiments showed that a high concentration of MT (60 ppm) was efficiently removed (99.5%) by the biotrickling filters at EBRT 30 s. The addition of hydrogen sulfide decreased the MT removal rate because the dissolved oxygen competed with MT.
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Affiliation(s)
- Chao-zheng Zhang
- School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, PR China; Key Laboratory of Ministry of Education Industrial Fermentation Microbiology, Tianjin Key Laboratory of Industrial Microbiology, Tianjin University of Science and Technology, Tianjin 300457, PR China
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Klok JBM, van den Bosch PLF, Buisman CJN, Stams AJM, Keesman KJ, Janssen AJH. Pathways of sulfide oxidation by haloalkaliphilic bacteria in limited-oxygen gas lift bioreactors. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2012; 46:7581-6. [PMID: 22697609 DOI: 10.1021/es301480z] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/13/2023]
Abstract
Physicochemical processes, such as the Lo-cat and Amine-Claus process, are commonly used to remove hydrogen sulfide from hydrocarbon gas streams such as landfill gas, natural gas, and synthesis gas. Biodesulfurization offers environmental advantages, but still requires optimization and more insight in the reaction pathways and kinetics. We carried out experiments with gas lift bioreactors inoculated with haloalkaliphilic sulfide-oxidizing bacteria. At oxygen-limiting levels, that is, below an O(2)/H(2)S mole ratio of 1, sulfide was oxidized to elemental sulfur and sulfate. We propose that the bacteria reduce NAD(+) without direct transfer of electrons to oxygen and that this is most likely the main route for oxidizing sulfide to elemental sulfur which is subsequently oxidized to sulfate in oxygen-limited bioreactors. We call this pathway the limited oxygen route (LOR). Biomass growth under these conditions is significantly lower than at higher oxygen levels. These findings emphasize the importance of accurate process control. This work also identifies a need for studies exploring similar pathways in other sulfide oxidizers such as Thiobacillus bacteria.
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Affiliation(s)
- Johannes B M Klok
- Systems and Control group, Wageningen University, Bornse Weilanden 9, P.O. Box 17, 6700 AA Wageningen, The Netherlands.
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Meulepas RJW, Jagersma CG, Khadem AF, Stams AJM, Lens PNL. Effect of methanogenic substrates on anaerobic oxidation of methane and sulfate reduction by an anaerobic methanotrophic enrichment. Appl Microbiol Biotechnol 2010; 87:1499-506. [PMID: 20445975 PMCID: PMC2892604 DOI: 10.1007/s00253-010-2597-0] [Citation(s) in RCA: 46] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2010] [Revised: 03/31/2010] [Accepted: 03/31/2010] [Indexed: 12/26/2022]
Abstract
Anaerobic oxidation of methane (AOM) coupled to sulfate reduction (SR) is assumed to be a syntrophic process, in which methanotrophic archaea produce an interspecies electron carrier (IEC), which is subsequently utilized by sulfate-reducing bacteria. In this paper, six methanogenic substrates are tested as candidate-IECs by assessing their effect on AOM and SR by an anaerobic methanotrophic enrichment. The presence of acetate, formate or hydrogen enhanced SR, but did not inhibit AOM, nor did these substrates trigger methanogenesis. Carbon monoxide also enhanced SR but slightly inhibited AOM. Methanol did not enhance SR nor did it inhibit AOM, and methanethiol inhibited both SR and AOM completely. Subsequently, it was calculated at which candidate-IEC concentrations no more Gibbs free energy can be conserved from their production from methane at the applied conditions. These concentrations were at least 1,000 times lower can the final candidate-IEC concentration in the bulk liquid. Therefore, the tested candidate-IECs could not have been produced from methane during the incubations. Hence, acetate, formate, methanol, carbon monoxide, and hydrogen can be excluded as sole IEC in AOM coupled to SR. Methanethiol did inhibit AOM and can therefore not be excluded as IEC by this study.
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Affiliation(s)
- Roel J W Meulepas
- Pollution Prevention and Control Core, UNESCO-IHE, Westvest 7, 2611 AX Delft, The Netherlands.
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van den Bosch PLF, de Graaff M, Fortuny-Picornell M, van Leerdam RC, Janssen AJH. Inhibition of microbiological sulfide oxidation by methanethiol and dimethyl polysulfides at natron-alkaline conditions. Appl Microbiol Biotechnol 2009; 83:579-87. [PMID: 19333598 PMCID: PMC7419365 DOI: 10.1007/s00253-009-1951-6] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2009] [Revised: 03/05/2009] [Accepted: 03/05/2009] [Indexed: 11/29/2022]
Abstract
To avoid problems related to the discharge of sulfidic spent caustics, a biotechnological process is developed for the treatment of gases containing both hydrogen sulfide and methanethiol. The process operates at natron-alkaline conditions (>1 mol L−1 of sodium- and potassium carbonates and a pH of 8.5–10) to enable the treatment of gases with a high partial CO2 pressure. In the process, methanethiol reacts with biologically produced sulfur particles to form a complex mixture predominantly consisting of inorganic polysulfides, dimethyl disulfide (DMDS), and dimethyl trisulfide (DMTS). The effect of these organic sulfur compounds on the biological oxidation of sulfide to elemental sulfur was studied with natron-alkaliphilic bacteria belonging to the genus Thioalkalivibrio. Biological oxidation rates were reduced by 50% at 0.05 mM methanethiol, while for DMDS and DMTS, this was estimated to occur at 1.5 and 1.0 mM, respectively. The inhibiting effect of methanethiol on biological sulfide oxidation diminished due to its reaction with biologically produced sulfur particles. This reaction increases the feasibility of biotechnological treatment of gases containing both hydrogen sulfide and methanethiol at natron-alkaline conditions.
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Affiliation(s)
- Pim L F van den Bosch
- Sub-department of Environmental Technology, Wageningen University, Bomenweg 2, P. O. Box 8129, 6700 EV Wageningen, The Netherlands.
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