Engineering design of CAST process for a small town wastewater treatment

摘要

A process of CAST, designing parameters and characteristics in the water treatment technology was introduced in this paper. The CAST was adopted to treat a scale of 3300m~3/d of municipal wastewater and industrial effluent coming from a small town of Huojia county in Henan province. It is an innovative attempt to applied the CAST to a rural sewage treatment in the traditional water treatment field. What is more , after the chemical phosphorus removal and a sufficient reaction in the CAST tank, the effluent quality would ultimately meet level A while others could only meet level B in the state standard discharge standard of pollutants for municipal wastewater treatment plant (GB 18919-2002).