Results 21 to 30 of about 46,146 (257)

High-Rate Sulfate Removal Coupled to Elemental Sulfur Production in Mining Process Waters Based on Membrane-Biofilm Technology

Frontiers in Bioengineering and Biotechnology, 2022
It is anticipated that copper mining output will significantly increase over the next 20 years because of the more intensive use of copper in electricity-related technologies such as for transport and clean power generation, leading to a significant ...
Alex Schwarz, María Gaete, Iván Nancucheo, Denys Villa-Gomez, Marcelo Aybar, Daniel Sbárbaro   +5 more
doaj   +1 more source

Sulfur reducing activity of Desulfuromonas sp. YSD S-3 bacteria under cultivation at different conditions

Біологічні студії, 2017
The sulfur reducing activity of sulfur-reducing bacteria Desulfuromonas sp. YSD S-3 for the influence of aeration, pH and temperature was studied. The highest sulfur redu­cing activity was found in culture fluid (48.4 µM H2S / (min×mg of protein), in ...
O. Chayka, T. Peretjatko, S. Gudz
doaj   +1 more source

Biogenic Hydrogen Sulfide Production Using Elemental Sulfur and Low-Cost Organic Substrates to Remove Metal Ions from Mining Effluents

Mining, 2023
One of the best technologies available for metal removal from mining effluents is the precipitation of metals as sulfides. However, the high cost and difficulty in managing reagents limit its widespread application.
Cristian Martínez, Pabla Viedma, Franco Cárdenas, Davor Cotoras   +3 more
doaj   +1 more source

Sulfur reducing bacteria from coal pits waste heaps of Chervonograd mining region

Біологічні студії, 2016
Sulfur reducing bacteria from coal pits waste heaps of Chervonograd minig region were isolated and their seasonal number changes were established.
S. V. Diakiv, S. O. Hnatush, O. M. Moroz, O. Ya. Prypin, O. R. Kulachkovskyi, V. Ye. Bodnaruk   +5 more
doaj   +1 more source

Recent Advances in Biotechnologies for the Treatment of Environmental Pollutants Based on Reactive Sulfur Species

Antioxidants, 2023
The definition of reactive sulfur species (RSS) is inspired by the reactivity and variable chemical valence of sulfur. Sulfur is an essential element for life and is a part of global geochemical cycles.
Kaili Fan, Wei Wang, Xijun Xu, Yuan Yuan, Nanqi Ren, Duu-Jong Lee, Chuan Chen   +6 more
doaj   +1 more source

Oxidation of Reduced Inorganic Sulfur Compounds by Bacteria: Emergence of a Common Mechanism? [PDF]

Applied and Environmental Microbiology, 2001
Biological oxidation of hydrogen sulfide to sulfate is one of the major reactions of the global sulfur cycle. Reduced inorganic sulfur compounds (referred to below as sulfur) are exclusively oxidized by prokaryotes, and sulfate is the major oxidation product.
C G, Friedrich, D, Rother, F, Bardischewsky, A, Quentmeier, J, Fischer   +4 more
openaire   +2 more sources

Attenuation of acid rock drainage by stimulating sulfur-reducing bacteria

Environmental Earth Sciences, 2023
AbstractIron-sulfide minerals found in shale formations are stable under anaerobic conditions. However, in the presence of oxygen and water, acid-loving chemolithotrophic bacteria can transform the iron-sulfide minerals into a toxic solution of sulfuric acid and dissolved iron and minerals known as acid rock drainage (ARD).
Thomas D. Byl, Ronald Oniszczak, Diarra Fall, Petra K. Byl, Michael Bradley   +4 more
openaire   +1 more source

The Eastern Nebraska Salt Marsh Microbiome Is Well Adapted to an Alkaline and Extreme Saline Environment

Life, 2021
The Eastern Nebraska Salt Marshes contain a unique, alkaline, and saline wetland area that is a remnant of prehistoric oceans that once covered this area.
Sierra R. Athen, Shivangi Dubey, John A. Kyndt   +2 more
doaj   +1 more source

Fine scale analysis of shifts in bacterial community structure in the chemocline of meromictic Lake Cadagno, Switzerland

Journal of Limnology, 2009
Phototrophic sulfur bacteria in the chemocline of Lake Cadagno, Switzerland, were dominated by purple sulfur bacteria before 1998, but their composition shifted after a presumed disturbance to consist of mainly green sulfur bacteria.
Mauro TONOLLA, Dittmar HAHN, Nadia RUGGERI-BERNARDI, Sandro PEDUZZI, Paola M.A. DECRISTOPHORIS   +4 more
doaj   +1 more source

Sulfur content in foods and beverages and its role in human and animal metabolism: A scoping review of recent studies

Heliyon, 2023
Sulfur is a vital element that all living things require, being a component of proteins and other bio-organic substances. The various kinds and varieties of microbes in nature allow for the transformation of this element.
Dani Dordevic, Jana Capikova, Simona Dordevic, Bohuslava Tremlová, Márió Gajdács, Ivan Kushkevych   +5 more
doaj   +1 more source