22-08-2012, 10:06 AM
A Comprehensive Study of Hybridized Biological Treatment
ABSTRACT
The work deals with a comprehensive study of major possible treatment methodologies of distillery spentwash and an emphasis has been made on the Hybridized Biological Treatment method which follows an intermediate mechanism between aerobic and anaerobic methods and discussed over various other methods following the mechanism based physical treatment, chemical treatment and biological treatment to enhance the effectiveness of Hybridized biological treatment method for effluent treatment and decomposition incorporating the impact of the finally treated discharge on the environment. This report also describes the various distillery operations, waste generation mechanisms due to difference in source of raw material based distilleries viz. sugarcane molasses, malt, cereals, grain, etc., characterization done to determine the level of BOD and COD, total dissolved solid (TDS), and ash content and characteristics of effluent based presence of toxic pollutants present and their impact on the environment.
The study also focus on the identification of possible products that can be obtained profitably from the sugarcane molasses based distillery effluent during the course of treatment and after the treatment process is completed and the end products are to be disposed and also the method could yield considerable benefits to the distillery industries if incorporated as an integral part of the entire process. An interest has also been shown to explore the distillery effluent as a potential energy source, its capability in production of the methane gas, using end residue as fertilizer and spent wash of irrigation of land. An attempt for the aerobic treatment of the final discharge to reduce the level of BOD and COD, so that its harmful effects on the environment and on human life could be minimized has been conducted. This approach could be used to develop a cost-effective, eco-friendly package for the biological