Results 51 to 60 of about 270,626 (338)

Activity and phylogenetic diversity of sulfate-reducing microorganisms in low-temperature subsurface fluids within the upper oceanic crust

open access: yesFrontiers in Microbiology, 2015
The basaltic ocean crust is the largest aquifer system on Earth, yet the rates of biological activity in this environment are unknown. Low-temperature (
Alberto eRobador   +6 more
doaj   +1 more source

Sulfur-cycling chemolithoautotrophic microbial community dominates a cold, anoxic, hypersaline Arctic spring

open access: yesMicrobiome, 2023
Background Gypsum Hill Spring, located in Nunavut in the Canadian High Arctic, is a rare example of a cold saline spring arising through thick permafrost.
Elisse Magnuson   +4 more
doaj   +1 more source

Biotechnological aspects of sulfate reduction with methane as electron donor [PDF]

open access: yes, 2010
Biological sulfate reduction can be used for the removal and recovery of oxidized sulfur compounds and metals from waste streams. However, the costs of conventional electron donors, like hydrogen and ethanol, limit the application possibilities.
Lens, P.N.L.   +2 more
core   +2 more sources

Integrated Kinetic Modelling and Microbial Profiling Provide Insights Into Biological Sulfate-Reducing Reactor Design and Operation

open access: yesFrontiers in Bioengineering and Biotechnology, 2022
Biological sulfate reduction (BSR) is an attractive approach for the bioremediation of sulfate-rich wastewater streams. Many sulfate-reducing microorganisms (SRM), which facilitate this process, have been well-studied in pure culture.
Tomas Hessler   +4 more
doaj   +1 more source

Microbial sulfate reduction in acidic (pH 3) strip-mine lakes [PDF]

open access: yesFEMS Microbiology Letters, 1990
35SO4 reduction was detected in slurries of sediments obtained from Reservoir 29 (pH 3.8) and Lake B (pH 6.2), two acid strip-mine lakes in Indiana. The rates varied seasonally and were higher in summer and fall than in the spring. The optimal pH for sulfate reduction in Reservoir 29 sediments was 5, but samples had increased activity at pH 7 within 24
Ruth A. Gyure   +3 more
openaire   +2 more sources

Galvanic interpretation of self‐potential signals associated with microbial sulfate‐reduction [PDF]

open access: yesJournal of Geophysical Research: Biogeosciences, 2007
We have evaluated the usefulness of the self‐potential (SP) geophysical method to track the onset and location of microbial sulfate‐reduction in saturated sediments during organic carbon amendment. Following stimulation of sulfate‐reducing bacteria (SRB) by addition of lactate, anomalous voltages exceeding 600 mV correlated in space and time with the ...
Williams, Kenneth H.   +2 more
openaire   +2 more sources

Biogeochemical dynamics and microbial community development under sulfate- and iron-reducing conditions based on electron shuttle amendment.

open access: yesPLoS ONE, 2021
Iron reduction and sulfate reduction are two of the major biogeochemical processes that occur in anoxic sediments. Microbes that catalyze these reactions are therefore some of the most abundant organisms in the subsurface, and some of the most important.
Theodore M Flynn   +8 more
doaj   +1 more source

Microbial Community Structure and Functions in Ethanol-Fed Sulfate Removal Bioreactors for Treatment of Mine Water

open access: yesMicroorganisms, 2017
Sulfate-rich mine water must be treated before it is released into natural water bodies. We tested ethanol as substrate in bioreactors designed for biological sulfate removal from mine water containing up to 9 g L−1 sulfate, using granular sludge from an
Malin Bomberg   +3 more
doaj   +1 more source

Microbial degradation of dimethylsulphide and related C1-sulphur compounds: organisms and pathways controlling fluxes of sulphur in the biosphere [PDF]

open access: yes, 2010
Dimethylsulphide (DMS) plays a major role in the global sulphur cycle. It has important implications for atmospheric chemistry, climate regulation, and sulphur transport from the marine to the atmospheric and terrestrial environments.
Boden, Rich   +2 more
core   +1 more source

A microbial method for improving salt swelling behavior of sulfate saline soil by an experimental study

open access: yesAlexandria Engineering Journal, 2019
Services of soil environment system and safety production of pavements and railways are seriously affected and threatened by salt swelling behavior of sulfate saline soil.
Shuquan Peng   +4 more
doaj   +1 more source

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