The contaminants are not so biodegradable and hence, the COD levels are not coming down. I am not sure if an additional activated sludge process is required when a biological treatment process is already in place.
Hello,
I have been asked to look at treating the effluent from a textile unit, which does dyeing and bleaching process. The following average values have been measured for the effluents, which have been segregated based on their COD values.
Dyeing effluent:
Flow - 800 m3/hr
COD - 800 mg/l
BOD...
