Two municipalities were faced with odor issues and required corrosion prevention in their collection systems. Monitoring in the sewer lines indicated peak H2S atmospheric concentrations of 300-500 ppm. Both clients desired H2S < 20 mg/L to prevent corrosion and preferably lower to prevent H2S odor.
Wastewater collection systems are plagued with H2S generation and the resultant odors and corrosion. H2S is formed by Sulfate Reducing Bacteria (SRB) under anaerobic conditions.