Abstract
The cleaning of equipment is the main pollution source in the paint industry. The presence of high concentration of suspended solids, color, oil and grease, and heavy metals compelled the researchers to identify the suitable technology to control the pollutants. By acknowledging the toxicity associated with the pollutants toward the human health and the aquatic life the treatment methodology was developed to reduce the contaminants. The well-accepted method for the treatment of paint industry effluent is coagulation. It was attempted on the paint industry effluent using the treatment train comprising coagulation, flocculation, sedimentation, sand filtration, and membrane filtration. The pretreatment step improves the efficiency of the membrane process. The addition of membrane process in the treatment produces the zero-liquid discharge. Along with color, turbidity removal, and chemical oxygen demand reduction, the removal of heavy metals was also examined.
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