Worldwide environment regulatory authorities are
setting for discharge of wastewaters from industries. In
India for instance, distillery industry had been told to
achieve zero discharge of spentwash by December
2005 according to the Central Pollution Control Board
as in the Figure 2.2 (CPCB, 2003). All methods of
wastewater treatment such as lagooning,
biodegradation wet air oxidation bio-methanation,
membrane filtration evaporation composing were tried
for last 25 years, and found to be techno-economically
nonfeasible. The present work proposes the processengineering
approach based on experimental data on