Results 151 to 160 of about 112,858 (199)

Arsenite removal without thioarsenite formation in a sulfidogenic system driven by sulfur reducing bacteria under acidic conditions

Water Research, 2019
Sulfidogenic process using sulfate-reducing bacteria (SRB) has been used to remove arsenite from the arsenic-contaminated waters through the precipitation of arsenite with sulfide. However, excessive sulfide production and significant pH increase induced by sulfate reduction result in the formation of the mobile thioarsenite by-products and the ...
Jianliang Sun, Yaowu Hong, Jiahua Guo, Jierui Yang, Duanyi Huang, Zichao Lin, Feng Jiang   +6 more
openaire   +4 more sources

Realizing a high-rate sulfidogenic reactor driven by sulfur-reducing bacteria with organic substrate dosage minimization and cost-effectiveness maximization

Chemosphere, 2019
Biological sulfur reduction is an attractive sulfidogenic technology for the treatment of organics-deficient metal-laden wastewater, because it theoretically reduces the electron donor consumption by 75%, compared to sulfate reduction. However, reducing the external organic substrate dosage may lower the sulfur reduction rate.
Jiahua Guo, Jinting Wang, Yanying Qiu, Jianliang Sun, Feng Jiang   +4 more
openaire   +5 more sources

Benzothiazol-3-ium Cationic Schiff Base Surfactants: Synthesis, Surface Activity and Antimicrobial Applications against Pathogenic and Sulfur Reducing Bacteria in Oil Fields

Journal of Dispersion Science and Technology, 2011
Two series of cationic Schiff base surfactants namely: 2-(benzylideneamino)-3-(2-oxo-2-alkoxyethyl)-1,3-benzothiazol-3-ium bromide (1-4) and 2-[(4-methoxybenzylidene)amino]-3-(2-oxo-2-alkoxyethyl)-1,3-benzothiazol-3-ium bromide (5-8) were prepared. The chemical structures of the prepared Schiff bases were recognized by elemental analysis, FTIR, and NMR
N. A. Negm, Y. M. Elkholy, F. M. Ghuiba, M. K. Zahran, S. A. Mahmoud, S. M. Tawfik   +5 more
openaire   +3 more sources

Polysulfide as a possible substrate for sulfur-reducing bacteria

Archives of Microbiology, 1993
Because of its low solubility it is unlikely that elemental sulfur serves as the direct substrate for sulfur-reducing bacteria. To test the hypothesis that polysulfide may represent a soluble intermediate of sulfur reduction, the maximal polysulfide concentrations formed from elemental sulfur in aqueous sulfide solutions were measured at near neutral ...
Rolf Schauder, Eva M�ller
openaire   +1 more source

A survey of EPR-detectable components in sulfur-reducing bacteria

Biochimica et Biophysica Acta (BBA) - Bioenergetics, 1983
Abstract A survey was made of components of sulfur-reducing bacteria that can be detected by EPR spectroscopy. To this purpose, whole cells were examined and a membrane and cytoplasm fraction obtained by centrifugation at 120 000 × g after cell lysis by suitable procedures.
R. Bache, P.M.H. Kroneck, H. Merkle, H. Beinert   +3 more
openaire   +1 more source

Biosynthesis of semiconductor nanoparticles by using sulfur reducing bacteria Serratia nematodiphila

Advances in nano research, 2013
The synthesis of semiconductor nanoparticles is a growing research area due to the prospective applications for the development of novel technologies. In this paper we have reported the biosynthesis of Cadmium sulfide nanoparticles (CdSNPs) by reduction of cadmium sulphate solution, using the bacteria of Serratia nematodiphila.
C. Malarkodi, S. Rajeshkumar, K. Paulkumar, G. Gnana Jobitha, M. Vanaja, G. Annadurai   +5 more
openaire   +1 more source

Role of sulfur-reducing bacteria in a wetland system treating acid mine drainage

Science of The Total Environment, 2008
This report describes a twenty month case study of a successive alkalinity producing system (SAPS) treating a strong acid mine drainage (AMD) source in Coshocton County, Ohio. Prior to the commencement of the project, a large volume of black amorphous sludge had accumulated in several of the constructed wetlands. The sludge was found to be 43% organic,
R Guy, Riefler, Jeremy, Krohn, Ben, Stuart, Cheryl, Socotch   +3 more
openaire   +2 more sources

Photoproduction of H2 from acetate by syntrophic cocultures of green sulfur bacteria and sulfur-reducing bacteria

Archives of Microbiology, 1992
The marine green sulfur bacterium Chlorobium vibrioforme strain 1930 produced H2 and elemental sulfur from sulfide or thiosulfate under N limitation in the light. H2 production depended on nitrogenase and occurred only in the absence of ammonia. Methionine sulfoximine, an inhibitor of glutamine synthetase, prevented the switch-off by ammonia.
Rolf Warthmann, Heribert Cypionka, Norbert Pfennig   +2 more
openaire   +1 more source

Electric current generation by sulfur-reducing bacteria in microbial-anode fuel cell

SPIE Proceedings, 2012
Sulfur - reducing bacteria are a part of normal microflora of natural environment. Their main function is supporting of reductive stage of sulfur cycle by hydrogen sulfide production in the process of dissimilative sulfur-reduction. At the same time these bacteria completely oxidize organic compounds with CO 2 and H 2 O formation.
Oresta M. Vasyliv, Oleksandr I. Bilyy, Yaroslav P. Ferensovych, Svitlana O. Hnatush   +3 more
openaire   +1 more source

Biological metal corrosion in saline systems by sulfur-reducing and iron-oxidizing bacteria

Water Quality Research Journal, 2011
This study investigated whether any possible bio-corrosion of pumps could occur when operating underground pumping stations in coastal regions. Groundwater in the stations was found to contain Leptothrix sp. (iron-oxidizing bacteria, IOB) and Desulfovibrio sp. (sulfur-reducing bacteria, SRB).
Chang-Gyun Kim, Hyung Joon Seo, Chang-Min Ahn, Ji-Sun Han, Eun-Hae Sung   +4 more
openaire   +1 more source