The behavior of sulfate-reducing bacteria in acidogenic phase of anaerobic digestion

Muta, Osamu; Li, Y.Y.; Noike, Tatsuya

doi:10.1016/s0043-1354(97)00372-2

Cited by 146 publications

(66 citation statements)

References 23 publications

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“…This phenomenon is usually related to high H 2 -scavenging ability of the hydrogenotrophic SRB, which are also resistant to acidic pH at much lower levels than hydrogenconsuming methanogens. 21,22 Lowering of H 2 partial pressure is crucial to provide thermodynamically favorable conditions for efficient VFA oxidation, where hydrogenotrophic SRB have been reported as the most efficient species with higher substrate affinity and reaction rate constants compared to hydrogenotrophic methanogens. 22 -24 Research also exists on their ability to oxidize VFA such as butyric acid and propionic acid.…”

Section: Methodsmentioning

confidence: 99%

“…25,26 Another advantage of promoting SRB activity in the PA tank is that the sulfatereducing path produces alkalinity and also consumes acidity. 21,27 Organic matter as dissolved COD and biochemical oxygen demand (BOD), fatty matter/lipid and other parameters were determined using Standard Methods. 28 VFA and HCO 3 − were determined according to Anderson and Yang's method as equivalent CaCO 3 .…”

Section: Methodsmentioning

confidence: 99%

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Treatment of high‐fat‐containing dairy wastewater in a sequential UASBR system: influence of recycle

Erdirençelebi

2010

J of Chemical Tech & Biotech

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BACKGROUND: Raw cheese whey originating from white cheese production results in a strong and complex wastewater excessively rich in organic matter (chemical oxygen demand, COD=28-65 g L −1 ), fatty matter (14-24.5 g L −1 ) and acidity (3.9-6.1 g L −1 ). It was treated in a three-stage configuration consisting of a pre-acidification (PA) tank and sequential upflow anaerobic sludge bed reactors (UASBRs) at 2.8-7 g COD L −1 day −1 organic loading rates, during which the effects of effluent recycling at low rates and promoted SRB activity were investigated. Acidification, volatile fatty acids (VFA), COD and fatty matter removal and volatile solids were monitored throughout the system during the study.

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Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Treatment of high‐fat‐containing dairy wastewater in a sequential UASBR system: influence of recycle

Erdirençelebi

2010

J of Chemical Tech & Biotech

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“…However, sulfidogenesis was predominant and minimal methane was produced. According to Mizuno & Noike (1998), SRB play an important role in the interspecies transfer of hydrogen gas (H 2 ). It is possible that the primary organic matter had been converted into intermediate products such as propionate, butyrate and acetate and that, in this case, SRB competed with methanogenic archaea by consuming hydrogen.…”

Section: Microbial Assessment By Fluorescent In Situ Hybridization (Fmentioning

confidence: 99%

Kinetic modeling and microbial assessment by fluorescent in situ hybridization in anaerobic sequencing batch biofilm reactors treating sulfate-rich wastewater

Silva

Domingues

Hirasawa

et al. 2011

Braz. J. Chem. Eng.

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-This paper reports the results of applying anaerobic sequencing batch biofilm reactors (AnSBBR) for treating sulfate-rich wastewater. The reactor was filled with polyurethane foam matrices or with eucalyptus charcoal, used as the support for biomass attachment. Synthetic wastewater was prepared with two ratios between chemical oxygen demand (COD) and sulfate concentration (COD/SO 4 2-) of 0.4 and 3.2. For a COD/SO 4 2-ratio of 3.2, the AnSBBR performance was influenced by the support material used; the average levels of organic matter removal were 67% and 81% in the reactors filled with polyurethane foam and charcoal, respectively, and both support materials were associated with similar levels of sulfate reduction (above 90%). In both reactors, sulfate-reducing bacteria (SRB) represented more than 65% of the bacterial community. The kinetic model indicated equilibrium between complete-and incomplete-oxidizing SRB in the reactor filled with polyurethane foam and predominantly incomplete-oxidizing SRB in the reactor filled with charcoal. Methanogenic activity seems to have been the determining factor to explain the better performance of the reactor filled with charcoal to remove organic matter at a COD/SO 4 2-ratio of 3.2. For a COD/SO 4 2-ratio of 0.4, low values of sulfate reduction (around 32%) and low reaction rates were observed as a result of the small SRB population (about 20% of the bacterial community). Although the support material did not affect overall performance for this condition, different degradation pathways were observed; incomplete oxidation of organic matter by SRB was the main kinetic pathway and methanogenesis was negligible in both reactors.

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“…The Bioreactor referred to as 'substrate' usually serves two purposes: to provide a carbon source and to maintain flow through the system.Sulphate-reducing bacteria use the easily degradable fraction of organic matter such as low molecular weight compounds with simple structures (e.g., methanol, ethanol, lactate) (Dvorak et al, 1992;Tsukamoto et al, 2004), polylactic acid (Edenborn, 2004), simple carbohydrate monomers (e.g., glucose or sucrose) (Mizuno et al, 1998), and whey (Christensen et al, 1996). In terms of energy and biomass produced, lactate is a superior electron donor compared to others such as ethanol, acetic acid, propionate, and acetate (Nagpal et al, 2000).…”

Section: Introductionmentioning

confidence: 99%

Correlation between Chemical Characterization and Treatment Efficiencies of Complex Organic Carbon as Single Substrate in Treating Acid Mine Drainage

2016

IJAAEE

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Abstract-To develop efficient passive acid mine drainage (AMD) treatment systems, the anaerobic sulphate reduction process must be optimized, by selecting the most appropriate organic electron donors for sulphate reduction. The effectiveness in the remediation of AMD is dependent on the chemical characterization of organic carbon. Selection of the suitable carbon source is important to ensure performance and longevity of AMD treatment. The objective of the present study is to characterized a few natural organic easily available with almost negligible cost. Ten natural waste materials (i.e. organic waste goat manure, cow manure and buffalo manure and cellulosic waste sugarcane waste, babool woodchip and sawdust, mango woodchips and sawdust, fodder pearl and proso) were tested as single substrate in bench scale bioreactors. The suitability of a substrate for treating a particular substrate was determined empirically using laboratory scale test. Using ten single substrate bioreactors important contaminants removal (pH and sulphate) were observed and find their correlation between contaminant removal and chemical characteristics. The study indicates that a wide range of organic substrate materials can be used to effectively treat AMD using SRB technology. Goat, cow and buffalo manures show promising results in the initial startup of the bioreactor. Remove contaminants efficiently.

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The behavior of sulfate-reducing bacteria in acidogenic phase of anaerobic digestion

Cited by 146 publications

References 23 publications

Treatment of high‐fat‐containing dairy wastewater in a sequential UASBR system: influence of recycle

Treatment of high‐fat‐containing dairy wastewater in a sequential UASBR system: influence of recycle

Kinetic modeling and microbial assessment by fluorescent in situ hybridization in anaerobic sequencing batch biofilm reactors treating sulfate-rich wastewater

Correlation between Chemical Characterization and Treatment Efficiencies of Complex Organic Carbon as Single Substrate in Treating Acid Mine Drainage

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