Improvements in Effluent Treatment Plant by the Method of Coagulation and Flocculation in Metal Cutting Industry

Abstract

The present study has been undertaken to find and evaluate performance of an Effluent Treatment Plant
(ETP) of a metal cutting industry. This effluent treatment plant is operating on coagulation and flocculation treatment
method. Metal cutting industry is one of the most polluting industries in terms of large amount of water use during
production of mechanical components. The wastewater contains dissolved coolant and chemicals which are hazardous
for human health and also have bad impacts on environment. It is estimated that the metal cutting industry generate
0.5KL of waste water every day. Such untreated wastewater pollutes land and river system so that proper treatment of
metal cutting wastewater is necessary before disposal in environmen