International Sugar Journal

Water and effluent management in Indian sugar factories: a novel approach* [Full subscriber]

Abstract This study was undertaken to develop methodologies for reducing fresh-water consumption in cane processing.  Currently, this ranges from 50 to as high as 150 L/t of cane.  The developed condensate- and water-management system ensures maximum recycling and reuse of different water streams, resulting (except for start-up) in almost no freshwater use and reducing the effluent volume from the current 200-250 to 150-160 L/t of cane.  A modification was tested of the existing activated-sludge process for treating the effluent by introducing a sulphate-removal step before the conventional process.  Also tested was an alternative system of effluent treatment with electrocoagulation (EC)…

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