The Effect of pH on Thiosulfate Formation in a Biotechnological Process for the Removal of Hydrogen Sulfide from Gas Streams

Bosch, Pim L. F. van den; Sorokin, Dimitry Y.; Buisman, C.J.N.; Janssen, A.J.H.

doi:10.1021/es7024438

Cited by 60 publications

(47 citation statements)

References 20 publications

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“…Upon addition of biomass (15 mg N L −1 ) to oxygen-saturated buffer, the DO concentration decreased at a rate of up to 4.8 mM O 2 h −1 , even without addition of substrate (data not shown). This phenomenon was also previously observed and is assumed to be attributed to the oxidation of membrane-bound polysulfur compounds (Banciu et al 2004;Van den Bosch et al 2008). After re-aeration for at least 5 min, only endogenic oxygen consumption was observed, and experiments were started.…”

Section: Resultssupporting

confidence: 76%

Inhibition of microbiological sulfide oxidation by methanethiol and dimethyl polysulfides at natron-alkaline conditions

Bosch

Graaff

Fortuny-Picornell

et al. 2009

Appl Microbiol Biotechnol

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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 CO 2 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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Section: Resultssupporting

confidence: 76%

Inhibition of microbiological sulfide oxidation by methanethiol and dimethyl polysulfides at natron-alkaline conditions

Bosch

Graaff

Fortuny-Picornell

et al. 2009

Appl Microbiol Biotechnol

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“…In addition, they require minimum nutrient input and display high robustness to temperature, pH and moisture fluctuations (Oyarzun et al, 2003;Syed et al, 2006;Abatzoglou and Boivin, 2009;Sun et al, 2015). The most common biological technologies for H 2 S removal include biofilters (i.e., Chung et al, 1996;Elias et al, 2002;Oyarzun et al, 2003), biotrickling filters (e.g., Kim and Deshusses, 2005;Fortuny et al, 2008;Rodriguez et al, 2014) and bioscrubbers (e.g., Sorokin et al, 2008;Van Den Bosch et al, 2008). These processes are effective and environmentally friendly for the removal of H 2 S, in particular at low concentrations of the latter (Fortuny et al, 2008;Tang et al, 2009).…”

Section: H 2 S Removalmentioning

confidence: 99%

Biogas Management: Advanced Utilization for Production of Renewable Energy and Added-value Chemicals

Yentekakis

Goula

2017

Front. Environ. Sci.

106

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Biogas is widely available as a product of anaerobic digestion of urban, industrial, animal and agricultural wastes. Its indigenous local-base production offers the promise of a dispersed renewable energy source that can significantly contribute to regional economic growth. Biogas composition typically consists of 35-75% methane, 25-65% carbon dioxide, 1-5% hydrogen along with minor quantities of water vapor, ammonia, hydrogen sulfide and halides. Current utilization for heating and lighting is inefficient and polluting, and, in the case of poor quality biogas (CH 4 /CO 2 < 1), exacerbated by detrimental venting to the atmosphere. Accordingly, innovative and efficient strategies for improving the management and utilization of biogas for the production of sustainable electrical power or high added-value chemicals are highly desirable. Utilization is the focus of the present review in which the scientific and technological basis underlying alternative routes to the efficient and eco-friendly exploitation of biogas are described and discussed. After concisely reviewing state-of-the-art purification and upgrading methods, in-depth consideration is given to the exploitation of biogas in the renewable energy, liquid fuels, transport and chemicals sectors along with an account of potential impediments to further progress.Keywords: biogas, upgrading, purification, utilization, SOFC, ethylene, reforming, siloxanes BIOGAS Efficient management of ever-increasing amounts of municipal, industrial and agricultural wastes in order to minimize their environmental impact is an urgent necessity. Biological treatment of wastes, which can be carried out either aerobically or anaerobically, is widely applied in this area. Due to their several advantages the anaerobic processes are to be preferred because they require considerably smaller installations, produce less sludge, operate at lower temperatures and are suited to periodic operation. Much more importantly, they generate biogas, which is an attractive potential source of renewable energy and/or added-value chemicals due to its high content of methane and CO 2 . Anaerobic digestion (AD) can proceed over a wide temperature range, from phychrophilic (ca. 10-20 • C) and mesophilic (ca. 20-45 • C) up to thermophilic (ca. 45-65 • C) and hyperthermophilic (ca. ∼70 • C) levels, by means of cooperation between anaerobes and facultative anaerobe microorganisms, which successively promote a sequence of hydrolysis-acidogenesis,

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“…x ) Van Den Bosch et al, 2008). For the description of the biological formation of S 0 and SO 2À 4 via a MonodeHaldane model, at least 12 empirical parameters have to be estimated.…”

Section: Introductionmentioning

confidence: 99%

A physiologically based kinetic model for bacterial sulfide oxidation

et al. 2013

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The Effect of pH on Thiosulfate Formation in a Biotechnological Process for the Removal of Hydrogen Sulfide from Gas Streams

Cited by 60 publications

References 20 publications

Inhibition of microbiological sulfide oxidation by methanethiol and dimethyl polysulfides at natron-alkaline conditions

Inhibition of microbiological sulfide oxidation by methanethiol and dimethyl polysulfides at natron-alkaline conditions

Biogas Management: Advanced Utilization for Production of Renewable Energy and Added-value Chemicals

A physiologically based kinetic model for bacterial sulfide oxidation

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