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coagulation and biological treatment on paint manufacturing wastewater. Coagulation– flocculation of inert organic compounds by iron chloride aided with chimec 5161 has been used to improve the wastewater biological treatability. Then, pre-treated effluent was
Effluent from caustic cleaning operation is highly alkaline in nature and requires neutralisation prior to further treatment. An equalisation-cum-neutralisation tank is provided with an agitator. Effluent from stiff paint is mixed with the neutralised waste-water, dosed with a coagulant and sent to flash mixer.
