Sulfur-reducing bacteria, which use sulfur as an energy source, are the primary producers of large quantities of hydrogen sulfide. Gut Bacteria and Hydrogen Sulfide . When the water is pumped to the surface, the hydrogen sulfide gas escapes and is therefore easy to smell. Two substrates are essential for SRB to produce H 2 S, i.e., a sulfate and an electron donor for the sulfate reduction. Before the “great oxidation event” which occurred 2.5 billion years ago leading to an increase in atmospheric oxygen, H 2 S remained the most abundant and versatile chemical on the primitive earth ( 4 , 5 ). This page provides basic information about hydrogen sulfide gas and sulfur bacteria and discusses actions that you can take to minimize their effects. Hydrogen sulfide gas (H2S) can occur in wells anywhere in Minnesota, and gives the water a characteristic rotten egg taste or odor.
Hydrogen sulfide is insoluble in water, but underground, this gas remains trapped within the water. These bacteria chemically change natural sulfates in water to hydrogen sulfide. International Journal of Green Energy 2011, 8 (7) , 705-714.
Hydrogen sulfide (H 2 S)-producing bacteria (sulfate reducers, sulfite reducers, sulfur reducers, and other molecules with sulfur) : Importance in the deterioration of fish and meat products - Qualitative and quantitative culture; Molecular identification (PCR and sequencing). These bacteria utilized inorganic sulfur substrates and produced hydrogen sulfide (H 2 S) as the end product of anaerobic respiration . Hydrogen sulfide, or hydrosulfuric acid (H 2 S), is a gas that may occur in your household water.
The dominant genera are Desulfovibrio (D. piger, D. desulfuricans), Desulfobacter, Desulfobulbus and Desulfotomaculu . Sulfur-reducing bacteria live in oxygen-deficient environments such as deep wells, plumbing systems, water softeners and water heaters.
Common names include stink gas and sewer gas. Hydrogen, an abundant element that helps power the sun, also forms diverse compounds on earth ranging from water to hydrogen sulfide: a foul-smelling, colorless gas that forms when bacteria decompose dead animal and plant matter in stagnant low-oxygen water. Information 15-04-2018. Hydrogen Sulfide Removal from Biogas Using Pure and Mixed Cultures of Sulfide-Oxidizing Bacteria Biofiltration. Although hydrogen sulfide causes serious health problems at high exposure levels, it has several important commercial uses … What are Hydrogen Sulfide and Sulfate? SRB are ubiquitous members of mammalian colon . DOI: 10.1080/15435075.2011.602159.
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