Sulfide and sulfate inhibition of methanogenesis

Karhadkar, P. P.; Audic, J. M.; Faup, G. M.; Khanna, P.

doi:10.1016/0043-1354(87)90027-3

Cited by 125 publications

(56 citation statements)

References 6 publications

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“…Hydrogen sulfide, produced by degradation of sulfur containing amino acids or dissimilarity sulfate reduction using sulfate present in the initial substrate, is highly toxic to microorganisms, as it forms an inactive protein, metal complexation, and interferes with key metabolic enzymes in the cells (Karhadkar et al, 1987;Zandvoort et al, 2006;Chen et al, 2014). Therefore, the experiment on sulfide inhibition was conducted (Figure 7) and the calculated IC 50 was in the range of the reported values of 125-250 mg/L (Koster et al, 1986;Oleszkiewicz et al, 1989;Chen et al, 2008).…”

Section: Importance Of Te Supplementation On Ad Of Fwmentioning

confidence: 99%

Enhanced Anaerobic Digestion of Food Waste by Supplementing Trace Elements: Role of Selenium (VI) and Iron (II)

Ariunbaatar

Esposito

Yeh

et al. 2016

Front. Environ. Sci.

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This paper discusses the potential to enhance the anaerobic digestion of food waste FW by supplementing trace elements (Fe, Co, Ni, Zn, Mn, Cu, Se, and Mo) individually as well as in cocktails. A series of batch experiments on the biomethane potential of synthetic food waste were performed with low (FW-A) and high (FW-B) trace element background concentrations prepared in, respectively, Delft (The Netherlands) and Tampa (Florida, USA). The most effective trace elements for FW-A were Fe with an increase of 39.2 (±0.6)% of biomethane production, followed by Se (34.1 ± 5.6% increase), Ni (26.4 ± 0.2% increase) and Co (23.8 ± 0.2% increase). For FW-B supplementing these trace elements did not result in enhancement of the biomethane production, except for Se. FW-B had a Se concentration of 1.3 (±0. 5) µ g/gTS, while it was below the detection limit for FW-A. Regardless of the FW source, Se resulted in 30-35% increase of biomethane production at a concentration range of 25-50 µg/L (0.32-0.63 µM). Volatile fatty acids analysis revealed that TE supplementation enhances their consumption, thus yielding a higher biomethane production. Moreover, additional experiments on sulfide inhibition showed the enhancing effects of trace elements on the anaerobic digestion of food waste were not related with sulfide toxicity, but with the enzymatic reactions and/or microbial biomass aggregation.

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Section: Importance Of Te Supplementation On Ad Of Fwmentioning

confidence: 99%

Enhanced Anaerobic Digestion of Food Waste by Supplementing Trace Elements: Role of Selenium (VI) and Iron (II)

Ariunbaatar

Esposito

Yeh

et al. 2016

Front. Environ. Sci.

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“…Under anaerobic conditions, sulfate is reduced to sulfide through the action of sulfate-reducing bacteria (SRB), which will compete for the substrate with the methane-producing bacteria (MPB), resulting in lower methane production during the methanogenic phase (Harada et al, 1994;Isa and Anderson, 2005;Karhadkar et al, 1987).…”

Section: Gas Monitoring: Hydrogen Sulfide (H 2 S)mentioning

confidence: 99%

Methane production in anaerobic digestion of organic waste from Recife (Brazil) landfill: evaluation in refuse of diferent ages

Schirmer

Jucá

Schuler

et al. 2014

Braz. J. Chem. Eng.

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-This work focuses on monitoring the generation of biogas by biochemical methane potential (BMP) assays, commonly used to assess anaerobic biodegradability of solid and liquid wastes under controlled conditions. The experiment employed 5 g of substrate of both refuses (fresh and one-year-old wastes), digested with 250 mL of inoculum in 1 L flasks as bioreactors (all of them in triplicate, operating under batch conditions at ± 35 ºC). Despite the difference of age of both refuses evaluated, there was no significant differences in volume (near 1800 mL) and composition (55% methane) of biogas generated in 80 days of incubation under mesophilic conditions. The important parameters of both refuses (such as moisture content, volatile solids and chemical oxygen demand) also showed very similar initial values.

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“…The toxic effects of hydrogen sulfide are increased with decreased pH value (Karhadkar et al, 1987).…”

Section: Toxic Substances -Inhibitors Of the Processmentioning

confidence: 99%

“…Also the impact of sulphur compounds on methanogenesis is complex. , and their content amounting to approximately 5 mg dm -3 may even stimulate the production of methane (Karhadkar et al, 1987). Besides, while determining allowable concentrations of heavy metals in anaerobic processes of treatment, we should also take into account the presence of sulphur compounds.…”

Section: Toxic Substances -Inhibitors Of the Processmentioning

confidence: 99%

Methane fermentation process for utilization of organic waste

Frąc¹,

Ziemiński²

2012

International Agrophysics

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Methane fermentation process for utilization of organic wasteBiogas is a renewable and sustainable energy carrier generatedviaanaerobic digestion of biomass. This fuel is derived from various biomass resources and depending on its origin it contains methane (40-75%), carbon dioxide (20-45%) and some other compounds. The aim of this paper is to present the current knowledge and prospects of using the methane fermentation process to dispose of various types of organic wastes as well as conditions and factors affecting the methane fermentation process.

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Sulfide and sulfate inhibition of methanogenesis

Cited by 125 publications

References 6 publications

Enhanced Anaerobic Digestion of Food Waste by Supplementing Trace Elements: Role of Selenium (VI) and Iron (II)

Enhanced Anaerobic Digestion of Food Waste by Supplementing Trace Elements: Role of Selenium (VI) and Iron (II)

Methane production in anaerobic digestion of organic waste from Recife (Brazil) landfill: evaluation in refuse of diferent ages

Methane fermentation process for utilization of organic waste

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