S. VIRAPAN R. SARAVANANE AND V MURUGAIYAN
Abstract
The waste water generated from food industry will have high level of pollutant even though highly degradable. The required treatment scheme to achieve Zero discharge shall be very elaborate scheme and plant capital & operating shall be very high. Even though some states, categorized Food units as in Orange category, units has to implement Zero Liquid discharge, to meet local pollution control Board conditions. While evaluating the suitable treatment scheme for treating and reusing of High pollutant waste water generated from food it is reveling that most suitable treatment shall be Effluent Treatment Plant followed by Reverse Osmosis Plant and finally evaporator to handle high TDS water to achieve Zero liquid Discharge. Even though most of the existing Food industries have implemented effluent treatment plant to meet earlier local pollution control board requirement, they are finding difficulty in implementing Zero Liquid Discharge due to the high TDS RO reject water handling and disposal. This article has been prepared as a solution finding for RO Reject water handling for the plant capacity of 220 KLD.