نتایج جستجو برای: sulfate reducing bacteria srb

تعداد نتایج: 469872  

Journal: :Applied and environmental microbiology 2014
Dennis Enning Julia Garrelfs

About a century ago, researchers first recognized a connection between the activity of environmental microorganisms and cases of anaerobic iron corrosion. Since then, such microbially influenced corrosion (MIC) has gained prominence and its technical and economic implications are now widely recognized. Under anoxic conditions (e.g., in oil and gas pipelines), sulfate-reducing bacteria (SRB) are...

2017
Connor T Skennerton Karuna Chourey Ramsunder Iyer Robert L Hettich Gene W Tyson Victoria J Orphan

The anaerobic oxidation of methane by anaerobic methanotrophic (ANME) archaea in syntrophic partnership with deltaproteobacterial sulfate-reducing bacteria (SRB) is the primary mechanism for methane removal in ocean sediments. The mechanism of their syntrophy has been the subject of much research as traditional intermediate compounds, such as hydrogen and formate, failed to decouple the partner...

Journal: :Environmental science & technology 2001
J K King J E Kostka M E Frischer F M Saunders R A Jahnke

A quantitative framework was developed which estimates mercury methylation rates (MMR) in sediment cores based on measured sulfate reduction rates (SRR) and the community composition sulfate-reducing bacterial consortia. MMR and SRR as well as group-specific 16S rRNA concentrations (as quantified by probe signal) associated with sulfate-reducing bacteria (SRB) were measured in triplicate cores ...

Journal: :Applied and environmental microbiology 2003
K J Purdy D B Nedwell T M Embley

The distribution and activity of communities of sulfate-reducing bacteria (SRB) and methanogenic archaea in two contrasting Antarctic sediments were investigated. Methanogenesis dominated in freshwater Lake Heywood, while sulfate reduction dominated in marine Shallow Bay. Slurry experiments indicated that 90% of the methanogenesis in Lake Heywood was acetoclastic. This finding was supported by ...

2014
I. N. Jamil William P. Clarke

Biological sulfate reduction has been slowly replacing chemical unit processes to treat acid mine drainage (AMD). Bioremediations for AMD treatment are favored due to their low capital and maintenance cost. This paper describes the available AMD treatment, current SRB commercialization such as THIOPAQ® and BioSulphide® technologies, and also the factors and limitations faced. THIOPAQ® and BioSu...

Journal: :Saline Systems 2009
Eitan Ben-Dov Ariel Kushmaro Asher Brenner

Abundance and seasonal dynamics of sulfate-reducing bacteria (SRB), in general, and of extreme halophilic SRB (belonging to Desulfocella halophila) in particular, were examined in highly saline industrial wastewater evaporation ponds over a forty one month period. Industrial wastewater was sampled and the presence of SRB was determined by quantitative real-time PCR (qPCR) with a set of primers ...

2017
Yu Zhang Xungong Wang Yu Zhen Tiezhu Mi Hui He Zhigang Yu

Sulfate-reducing bacteria (SRB) and sulfur-oxidizing bacteria (SOB) have been studied extensively in marine sediments because of their vital roles in both sulfur and carbon cycles, but the available information regarding the highly diverse SRB and SOB communities is not comprehensive. High-throughput sequencing of functional gene amplicons provides tremendous insight into the structure and func...

2002
Derek R. Lovley Eric E. Roden

Lovley, D.R., Roden, E.E., Phillips, E.J.P. and Woodward, J.C., 1993. Enzymatic iron and uranium reduction by sulfatereducing bacteria. In: R.J. Parkes, P. Westbroek and J.W. de Leeuw (Editors), Marine Sediments, Burial, Pore Water Chemistry, Microbiology and Diagenesis. Mar. Geol., 113: 41-53. The potential for sulfate-reducing bacteria (SRB) to enzymatically reduce Fe(III) and U(VI) was inves...

Journal: :Water 2023

The reduction of Cr(VI) by biosynthesis iron sulfides (FeS1+x) under anoxic conditions has been studied extensively. However, the role sulfate-reducing bacteria (SRB) when FeS1+x containing SRB removes contaminants during in situ remediation still needs further study. secondary kinetic constant biosynthetic with presence (called BS-FeS1+x) was 1.72 times that absence BNS-FeS1+x) FeS1+x:Cr(VI) m...

Journal: :Journal of the Korean Society of Mineral and Energy Resources Engineers 2023

Heavy metal stabilization in soil was investigated using sulfate-reducing bacteria (SRB). Samples were collected from three agricultural soils near abandoned mines, and a nine-week batch experiment performed following the classification of as ① non-sterile with SO42- (SO4), ② sterile SRB (SRBo), ③ (SS). metals extracted 0.1 N HCl or Mehlich, efficiency evaluated by comparing results to control....

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