Biological Treatment of Lift Station

The use of ENVIRO-SCRUB® BIO bio-nutrient to prevent the formation of H2S.

A lift station in South Central Texas was using ferric iron compound to reduce the H2S.

The H2S is typically 210 PPM but lower levels are observed and noted. High levels of H2S present a danger to people – either employees or others exposed to the H2S in air.

The following chart shows the results obtained utilizing the iron compound.

At a rate of 68 ppm iron compound, the H2S was reduced to 20 parts per million at best. Most days the H2S level after treating with the iron compound was significantly higher than 20 ppm.
According to OSHA Regulations, 20 ppm is the legal maximum that personnel can be safely exposed to. Results were inconsistent, with H2S often increasing to 100 ppm or more, despite the addition of the iron compound.

Q2 Technologies ENVIRO-SCRUB® BIO bio-nutrient was used in place of the iron compound to eliminate the presence of H2S. The following chart details the results.

The use of ENVIRO-SCRUB® BIO bio-nutrient began when the H2S levels were 280 ppm. ENVIRO-SCRUB® BIO bio-nutrient immediately reduced the H2S to 4 ppm. ENVIROSCRUB® BIO bio-nutrient was injected continuously at dosage levels of between 14 to 20 ppm, and the H2S level reduced and maintained at zero. This effect is consistent for the entire eight days of the test.

ENVIRO-SCRUB® BIO bio-nutrient does not scavenge the H2S, as is the function of the iron compound. ENVIRO-SCRUB® BIO bio-nutrient stops the formation of H2S from occurring by changing the method that the bacteria function to metabolize the organic wastes.