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Lactate as an effective electron donor in the sulfate reduction: impacts on the microbial diversity
Environmental Technology, 2021The competition between sulfate-reducing bacteria and methane-producing archaea has a major influence on organic matter removal, as well as the success of sulfidogenic systems. This study investigated the performance of six batch sulfidogenic reactors in response to different COD/sulfate ratios (1.0 and 2.0) and electron donors (cheese whey, ethanol ...
Angélica Marcia dos Santos +6 more
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Autotrophic biocathode for high efficient sulfate reduction in microbial electrolysis cells
Bioresource Technology, 2014The aim of this study was to utilize the biocathode microbial electrolysis cell (MEC) for sulfate removal from wastewater. Experiments were conducted using the two-chambered MEC under fed-batch and continuous flow modes, respectively, with different cathode potentials. With the fed-batch operation, the average reductive rate of sulfate was 0.49 mg d(-1)
Haiping Luo +2 more
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Microbial sulfate reduction in a brackish meromictic steppe lake
Aquatic Ecology, 2003Patterns of sulfate reduction were studied in water and sediments of Lake Shira, South Siberia, Russia. The lake was characterized by a high level of sulfate (91-116 mM). The concentration of hydrogen sulfide in the anoxic waters of the lake reached 0.6 mM.
Dmitriy B. Kosolapov +4 more
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Cellular energy conservation and the rate of microbial sulfate reduction
Geology, 2009Microbial sulfate reduction is subject to a thermodynamic limit arising from the micro-organisms9 need to save energy for maintenance and growth, and this limit prevents the process from proceeding until the supply of electron donor or sulfate has been consumed, as would be expected from commonly applied kinetic theory.
Qusheng Jin, Craig M. Bethke
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Microbiology, 2013
The rates of microbial processes of sulfate reduction and of the methane cycle were measured in the bottom sediments of the Sevastopol basin, where seeps of gaseous methane have been previously found. Typically for marine environments, sulfate reduction played the major role in the terminal phase of decomposition of organic matter (OM) in reduced ...
N V, Pimenov +6 more
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The rates of microbial processes of sulfate reduction and of the methane cycle were measured in the bottom sediments of the Sevastopol basin, where seeps of gaseous methane have been previously found. Typically for marine environments, sulfate reduction played the major role in the terminal phase of decomposition of organic matter (OM) in reduced ...
N V, Pimenov +6 more
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High-Temperature Microbial Sulfate Reduction Can Be Accompanied by Magnetite Formation
Microbiology, 2004The hyperthermophilic sulfate-reducing archaeon Archaeoglobus fulgidus was found to be capable of lithoautotrophic growth on medium containing molecular hydrogen, sulfate, and amorphous Fe(III) oxide. During the growth of this microorganism, amorphous Fe(III) oxide was transformed into black strongly magnetic sediment rich in magnetite, as shown by ...
A I, Slobodkin +2 more
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Biodegradation, 2009
The reductive dechlorination of pentachloroaniline (PCA) was investigated in the absence and presence of sulfate in batch assays using a PCA-dechlorinating mixed anaerobic culture with methanol as the external electron donor at neutral pH and 22 degrees C.
Zainab Z, Ismail, Spyros G, Pavlostathis
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The reductive dechlorination of pentachloroaniline (PCA) was investigated in the absence and presence of sulfate in batch assays using a PCA-dechlorinating mixed anaerobic culture with methanol as the external electron donor at neutral pH and 22 degrees C.
Zainab Z, Ismail, Spyros G, Pavlostathis
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Mechanism of arsenic release in sulfate rich sediment during microbial sulfate reduction
2016Arsenic contamination of drinking water is a major problem in An Giang, one of the Southwestern Vietnamese provinces. To simulate the natural redox cycles to which natural sediments are subjected, batch redox oscillation bioreactor experiments were conducted on arsenic and sulfate doped natural sediments.
Phan THV +5 more
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Microbial Sulfate Reduction at Low pH in Sediments of an Acidic Lake in Argentina
Environmental Science & Technology, 2003We measured sulfate reduction in the acidic (pH < or = 3) sediment of an Argentinean lake influenced by volcanism. Sulfate reduction rates of 2.04 mmol m(-2) d(-1) were determined with a 35SO4(2-) core injection method and confirmed by batch incubations and from H2S measurements in the sediment. H2S production stopped when iron reduction was stimulated
Matthias, Koschorreck +2 more
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Microbial reduction of sulfate injected to gas condensate plumes in cold groundwater
Journal of Contaminant Hydrology, 2007Despite a rapid expansion over the past decade in the reliance on intrinsic bioremediation to remediate petroleum hydrocarbon plumes in groundwater, significant research gaps remain. Although it has been demonstrated that bacterial sulfate reduction can be a key electron accepting process in many petroleum plumes, little is known about the rate of this
Dale R, Van Stempvoort +2 more
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