Application Note

Primary Wastewater Treatment: Influent Monitoring

Source: Emerson

The raw sewage entering a wastewater treatment plant comes from a variety of sources. In addition to effluent from domestic users, effluent from industrial users and storm water run off can be present.

Off spec effluent from industrial users or accidental spills entering the sanitary sewer system can cause problems in the wastewater treatment process, by killing the bacteria used in the activated sludge process, or by upsetting the disinfection process.