Distilleries generate large volumes of high-strength wastewater that is of serious environmental concern. Spentwash disposal even after conventional treatment is hazardous and has high pollution potential due to the accumulation of recalcitrant compounds. Various physico-chemical and biological treatment options are available for the treatment of distillery wastewaters, but most of them could not find their application in the industry due to their technical limitations or exorbitant cost. This review presents an account of the problem and a detailed overview on the existing scenario on the treatment of distillery wastewater and issues requiring further research in the field of distillery wastewater treatment.
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Kanimozhi et al. (2009) studied this question.
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