Gas Detection in Wastewater Treatment Plants

Wastewater treatment processes use and produce highly toxic and combustible gases. Hydrogen sulfide is found in raw sewage and during the processing of sludge. Monitoring for hydrogen sulfide is essential in sewers, sludge de-watering systems, anaerobic digesters and wet/dry wells. Highly flammable methane gas is also produced during wastewater processing, especially during sludge decomposition. Other gases like ammonia, ozone and chlorine are used during other treatment stages. Due to the variety of gases used and produced during the wastewater treatment process, close monitoring and detection of these gases is critical to prevent people from harmful exposure, as well as to protect the environment. Gas detectors, like the Rosemount™ 925FGD Fixed Gas Detector should be located in every area of a wastewater treatment plant to quickly detect toxic and combustible gases before they create dangerous situations.