Enhancement of Calorific Value of Bagasse with Distillery Spentwash through Briquetting
Government of India has given stringent guidelines to dispose distillery effluent (spentwash) by zero liquid discharge to prevent environmental pollution. Treatment by anaerobic digestion followed by bio-composting has limitations of filler material availability and ground water pollution. Incineration of concentrated spent wash also has limitation of high capital cost and formation of hard scale of alkali earth metal on boiler tubes. The present experiment tries to overcome problems related to the existing disposal technology by preparation of biomass briquette of spent wash with sugar factory bagasse and studying its effect on bagasse characteristics. Results showed that caloric value of the bagasse increases from 2700 to 4100 cal/g and ash from 2% to 8%. Bagasse to spent wash ratio in briquette was 1:2.5 (w/v) for one time mixing.
Eknath Alhat , Deepali Nimbalkar, Vikram Ghole
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