The Comparison of Two Water Treatment Plants operating with different processes in Kandy City, Sri Lanka

Abstract

Two water treatment plants located in Kandy district, Sri Lanka, which are operating with two different processes, conventional water treatment and Pulsator water treatment followed by rapid sand filtration, were compared from the perspectives of ease and cost of operation. Pulsator technology has an advantage in its compactness, as it incorporates coagulation, flocculation, and clarification in a single unit, while the electricity consumption for the production of a unit of water was 30% higher than for the conventional process. The Pulsator water treatment process was considered to be best suited for populated areas with high land values.