COMPARATIVE ANALYSIS OF MULTIPLE EFFECT EVAPORATORS AND ANAEROBIC DIGESTER (UASB) FOR AN EFFECTIVE MANAGEMENT OF RO REJECT FROM TANNERY

The world without leather product we can't expect since all are adjusted in comfort zone in leather. In the process of producing leather lot of chemical are used and also some vegetable products. The effluents from tannery having high COD, BOD, Solids in both Suspended and Dissolve states and Nitrogen related products. The treatment process implemented in plants is recovered all the chemicals and removes Chromium from the effluent. The development in a sustainable manner ZLD system was introduced in Industries. ZLD implemented RO system in treatment in plants which can Water without any color and solids, and reject with high salt content as dissolved solids. The reject required to treat in economically suitable ways. The existing treatment methods are mechanical and anaerobic like evaporation and UASB reactor. The MEE systems are popular and used in all parts of the world in treating saline water to make it potable to overcome water demand and also to treat the wastewater by evaporation solidify/condensate to decrease the volume. In UASB the water with pollutants is passed through the blanket of sludge for degradation of solids present in the waste wit help of micro-organism on the outer surface of the granule. In anaerobic digestion, we can get gas having a high percentage of methane gas which can help us produce electricity at low cost