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

