Investigation of operational problems in an industrial wastewater treatment plant

Variations in the type of production leading to high fluctuations in water and chemical consumption were the main causes of the problems faced in the operation of the treatment plant of a detergent manufacturing factory. The characteristics of raw wastewater and effluent water were analysed for a pe riod of four months together with a series of Jar Test experiments to searc h the appropriate type of chemical coagulant and pH adjusting agents. The b iological treatment necessitated the application of bacteria culture and an tifoaming agent to increase its performance.