Before revision: Design considerations and process upsets Process upsets are temporary decreases in treatment plant performance caused by significant population change within the secondary treatment ecosystem.King, p.703 Conditions likely to create upsets include for example toxic chemicals and unusually high or low concentrations of organic waste BOD providing food for the bioreactor ecosystem.
After revision: Design considerations Process upsets Process upsets are temporary decreases in treatment plant performance caused by significant population change within the secondary treatment ecosystem.King, p.703 Conditions likely to create upsets include for example toxic chemicals and unusually high or low concentrations of organic waste BOD providing food for the bioreactor ecosystem.