Hydrogen Sulfide in Water

Hydrogen Sulfide in water (H2S) is a gas which imparts its "rotten egg smell in water" or SULFIDE odor to water supplies. Waters that have large amounts of Hydrogen Sulfide are distasteful for drinking water purposes and processes in practically all industries. Most hydrogen sulfur in waters levels contain from 1 to 5 ppm of hydrogen sulfide. Hydrogen sulfide can interfere with readings obtained from water samples. It turns hardness and pH tests gray, and makes iron tests inaccurate. Chlorine bleach should be added to eliminate the H2S odor; then the hardness, pH and iron tests can be done. Hydrogen sulfide levels in water can not be tested in a lab, it must be done in the field. Hydrogen sulfide is corrosive to plumbing fixtures even at low concentrations. H2S fumes will blacken or darken painted surfaces, giving them a "smoked" appearance.
 
Hydrogen Sulfide Water Treatment 2S, Hydrogen Sulfide water treatment requires chlorine to be fed in sufficient quantities to eliminate it, while leaving a residual in the water (3 ppm of chlorine is required for each ppm of hydrogen sulfide in drinking water). Activated carbon filtration may then be installed to remove the excess chlorine.