Description
To determine the hydrogen sulfide water sample must be preserved on the site, so you need to leave the specialist. Hydrogen sulfide and sulfides can be determined in water in total, or each indicator separately.
Full chemical analysis of well water - 16 indicators
Analysis of water for hydrogen sulfide. Causes of hydrogen sulfide in water.
Hydrogen sulfide (H2S) is present in water in the form of equilibrium concentrations of sulfide and hydrosulfide ions. Elevated concentrations of hydrogen sulfide are characteristic of water from wells, and quite deep ones. At a depth in conditions of lack of oxygen, anaerobic bacteria develop, which produce hydrogen sulfide during the processing of organic substances. As a result, water acquires the characteristic unpleasant smell of rotten eggs, and it is no longer possible to use such water for drinking.
Hydrogen sulfide and sulfides appear in surface waters mainly in the process of bacterial decomposition of substances of animal origin; therefore, for surface sources, an increased concentration of hydrogen sulfide and sulfides may indicate contamination with animal organic matter. In addition to recovery processes involving bacteria, wastewater from industrial enterprises (food and chemical industries, metallurgy, pulp production, etc.), oil refineries, mineral fertilizer enterprises, urban drains can serve as the appearance of excess hydrogen sulfide and sulfides in water. An increase in the concentration of hydrogen sulfide in the bottom layers of natural water bodies indicates a sharp lack of oxygen and the appearance of zamorov.
The concentration of hydrogen sulfide is normalized by the regulations of SanPiN and GN, since hydrogen sulfide is toxic and impairs the organoleptic properties of water. Permissible concentrations of hydrogen sulfide in water: for drinking water and household water - 0.003 mg / l
