A legacy of lead and silver mining in its headwaters left Lake Coeur d'Alene, Idaho with a sediment body that is highly reduced and contains up to 100 g kg(-1) iron and a smaller fraction of chemically active sulfide phases. The dynamic character of these sulfides and their importance for the sequestering of contaminating trace elements prompted this study of the sulfate-reducing bacteria (SRB)...

Abstract Although it is well known that microbes play a significant role in marine corrosion, few studies have systematically studied the relationship between microorganisms and corrosion products under long-term immersion. In this study, characteristics of rust layer formed on carbon steel immersed South China Sea for 5.5 years were investigated using various surface analysis microbial communi...

The main intention of this study to understand the microbial consortium of Sulphate Reducing Bacteria(SRB) and Sulphure oxidizing bacteria (SOB) on Extra polymeric substance produced by Pseudomonas sp., with combination of E-coli. In stressing the importance of anaerobic corrosion by SRB, corrosive effects of acids produced by microorganisms may be overlooked Sulphur oxidizers chiefly of the ge...

Abstract Petroleum-hydrocarbons spilt in surface seawater may pose potential threats to the corrosion of steel infrastructures. We show that crude oil accelerated mainly by accelerating microbiologically influenced (MIC). Crude led dominance marine oil-degraders including Alcanivorax and Marinobacter both rust, rather than sulfate-reducing bacteria (SRB) which dominated rust microbial community...

Hydrogen sulfide produced by sulfate-reducing bacteria (SRB) in sewers causes odor problems and asset deterioration due to the sulfide-induced concrete corrosion. Free nitrous acid (FNA) was recently demonstrated as a promising antimicrobial agent to alleviate hydrogen sulfide production in sewers. However, details of the antimicrobial mechanisms of FNA are largely unknown. Here, we report the ...

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...

Copper canisters are a central component in the safety of Finnish spent fuel repository concept (KBS-3), where main corrodent potentially affecting canister integrity is sulfide. In this study, 3D numerical model developed to assess evolution sulfide fluxes and spatially resolved corrosion depths for nuclear concept. The backfilled tunnel disposal hole implemented using geometries, with being p...

Sediments recovered from the flooded mine workings of the Penn Mine, a Cu-Zn mine abandoned since the early 1960s, were cultured for anaerobic bacteria over a range of pH (4.0 to 7.5). The molecular biology of sediments and cultures was studied to determine whether sulfate-reducing bacteria (SRB) were active in moderately acidic conditions present in the underground mine workings. Here we docum...

The colonic mucus layer is comprised primarily of acidomucins, which provide viscous properties and can be broadly classified into sialomucins or sulfomucins based on the presence of terminating sialic acid or sulfate groups. Differences in acidomucin chemotypes have been observed in diseases such as colorectal cancer and inflammatory bowel disease, and variation in sialo- and sulfomucin conten...

Certain species of sulfate-reducing bacteria (SRB) use cathodes as electron donors for metabolism, and this electron transfer process may influence the proper protection potential choice for structures. The interaction between SRB and polarized electrodes had been the focus of numerous investigations. In this paper, the impact of cathodic protection (CP) on Desulfovibrio caledoniens metabolic a...