Treatment Methods of Distillary Spent Wash: A Review
Journal Title: International Journal of Engineering and Science Invention - Year 2019, Vol 8, Issue 1
Abstract
Grain based distilleries in India are classified as Red Category because of the large volume of high strength waste water (spent wash) generation. (12-15 liters per liter of alcohol) Spent wash has very high Biological Oxygen Demand (BOD 40,000-65,000 mg/lit.) Chemical Oxygen Demand (COD 80,000-1,40,000 mg/lit) and high BOD/COD ratio. The high amount of inorganic impurities as chlorides, Sulphates, Phosphates, Potassium and Calcium arise critical environmental pollutioncan result in eutrophication of natural water bodies..It's recalcitrant nature is due the presence of melanoidins, ceramal, polyphenols and variety of sugars decomposition products such as anthocyanin, tannius and different xenobiotic compounds. The present study reviews various techniques to treat the spent wash.
Authors and Affiliations
Prof. Yogesh. S. Khandeka, Dr. Narendra. P. Shinkar
Keywords
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