Hydrogen Sulfide

Published: September 24, 2017 | Last updated: July 5, 2023

What Does Hydrogen Sulfide Mean?

Hydrogen sulfide (H2S) is a gas, which is well known for its pungent odor similar to that of rotten eggs. Wastewater sewer systems often produce hydrogen sulfide through the action of bacteria on organic waste. When performing trenchless rehabilitation projects on wastewater sewers, it may be necessary to treat the water and eliminate the H2S for the safety and comfort of workers.


Trenchlesspedia Explains Hydrogen Sulfide

Organic waste is used as food by bacteria, and in the process of breaking down the organic material, H2S is released. Chemical treatment solutions are possible in order to mask the smell of H2S or to inhibit its production. These treatments are normally applied at the pump stations. Oil and Gas production sites also release H2S. It is hazardous to people, and control limits are set by OSHA regulations. It is also important to note that H2S is flammable and explosive at certain concentrations, and as such, poses a safety risk to trenchless construction and rehabiliation sites.


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