Multi Effect Evaporation

Zero Liquid Discharge System for Molasses Based Distilleries :

• Basic thrust of this technology is to reduce the quantity of effluent to maximum possible extent by use of a multiple effect evaporator. The concentrated effluent is subsequently fed to Multi effect evaporator or to Bio methanation plant to concentrate or to treat the effluent. The concentrated product so obtained can be used as fuel for burning in boilers or to be used as fertilizer for growth of plants.
• Direct spent wash as well as bio-methanated effluent is concentrated in a multistage vacuum evaporator from 4-6% to 40-60% solids. The total process is under vacuum and the vapours generated in the system are compressed in a TVR to economize steam consumption.
• Condensate water generated from the evaporation system is clear and recyclable for the process.