Results 301 to 310 of about 270,626 (338)

Large sulfur isotope fractionations associated with Neoarchean microbial sulfate reduction

Science, 2014
Dissecting ancient microbial sulfur cycling Before the rise of oxygen, life on Earth depended on the marine sulfur cycle. The fractionation of different sulfur isotopes provides clues to which biogeochemical cycles were active long ago (see the Perspective by Ueno). Zhelezinskaia et al.
I. Zhelezinskaia, A. J. Kaufman, J. Farquhar, J. Cliff   +3 more
semanticscholar   +3 more sources

Application of microbial sulfate-reduction process for sulfate-laden wastewater treatment: A review

Journal of Water Process Engineering, 2023
C. Diao, Weizhuo Ye, Jia Yan, T. Hao, Lei Huang, Yong-heng Chen, J. Long, T. Xiao, Hongguo Zhang   +8 more
semanticscholar   +2 more sources

Insight of the bio-cathode biofilm construction in microbial electrolysis cell dealing with sulfate reduction.

Bioresource Technology, 2022
Signaling molecules are useful in biofilm formation, but the mechanism for biofilm construction still needs to be explored. In this study, a signaling molecule, N-butyryl-L-Homoserine lactone (C4-HSL), was supplied to enhance the construction of the ...
Ke Shi, Wei Cheng, Qing Jiang, Jianliang Xue, Yanlu Qiao, Dongle Cheng   +5 more
semanticscholar   +1 more source

Lactate as an effective electron donor in the sulfate reduction: impacts on the microbial diversity

Environmental technology, 2021
The 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
A. Santos, J. M. Costa, J. Braga, T. Flynn, G. Brucha, G. P. Sancinetti, R. P. Rodriguez   +6 more
semanticscholar   +1 more source

Aerobic Sulfate Reduction in Microbial Mats

Science, 1991
Measurements of bacterial sulfate reduction and dissolved oxygen (O 2 ) in hypersaline bacterial mats from Baja California, Mexico, revealed that sulfate reduction occurred consistently within the well-oxygenated photosynthetic zone of the mats.
D E, Canfield, D J, Des Marais
openaire   +2 more sources

The antiquity of microbial sulfate reduction

Earth-Science Reviews, 2004
The phylogenetic positions of sulfate-reducing organisms, as revealed from comparisons of small-subunit ribosomal RNA (SSU rRNA), are spread over both the Archaeal and Bacterial domains, though when they evolved is uncertain. The low-branching positions of some of these groups on the Tree of Life have inspired the hypothesis that the metabolic ...
Yanan Shen, Roger Buick
openaire   +1 more source

Microbial sulfate reduction in a liquid–solid fluidized bed reactor

Biotechnology and Bioengineering, 2000
A liquid-solid fluidized bed reactor was used to carry out sulfate reduction with a mixed culture of sulfate reducing bacteria. The bacteria were immobilized on porous glass beads. Stable fluidized bed operation with these biofilm-coated beads was possible.
S, Nagpal, S, Chuichulcherm, L, Peeva, A, Livingston   +3 more
openaire   +2 more sources

Kinetics of microbial sulfate reduction in estuarine sediments

Geochimica et Cosmochimica Acta, 2006
Abstract Kinetic parameters of microbial sulfate reduction in intertidal sediments from a freshwater, brackish and marine site of the Scheldt estuary (Belgium, the Netherlands) were determined. Sulfate reduction rates (SRR) were measured at 10, 21, and 30 °C, using both flow-through reactors containing intact sediment slices and conventional sediment
Pallud, C., Van Cappellen, P.S.J.
openaire   +2 more sources

Microbial Reduction of Schwertmannite By Co-Cultured Iron- and Sulfate-Reducing Bacteria

SSRN Electronic Journal, 2022
Schwertmannite (Sch) is an iron-hydroxysulfate mineral commonly found in acid mine drainage contaminated environment. The transformation mechanism of Sch mediated by pure cultured iron-reducing bacteria (FeRB) or sulfate-reducing bacteria (SRB) has been studied.
Changdong, Ke, Chuling, Guo, Siyu, Zhang, Yanping, Deng, Xiaofei, Li, Yuancheng, Li, Guining, Lu, Fei, Ling, Zhi, Dang   +8 more
openaire   +2 more sources

Sulfate Reduction at a Lignite Seam: Microbial Abundance and Activity

Microbial Ecology, 2001
In a combined isotope geochemical and microbiological investigation, a setting of multiple aquifers was characterized. Biologically mediated redox processes were observed in the aquifers situated in marine sands of Tertiary age and overlying Quaternary gravel deposits.
J., Detmers, U., Schulte, H., Strauss, J., Kuever   +3 more
openaire   +2 more sources