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Treatment Process and Disposal Alternatives for Distillery Spentwash A Review


Prof. Amar S. Byakodi , Angadi Institute of Technology and Management, Belagavi.; Noorahmed A. H., Angadi Institute of Technology and Management, Belagavi.


Treatment Process, Distillery Spentwash


The present study was conducted to visualize characteristics of spentwash and its methods of treatment to reduce its effect on environment. Spentwash is a thick, viscous and dark brown coloured liquid which is a residue, left after distillation process. It contains very high concentration of organic and inorganic dissolved solids, also it is considered as one of the most polluting liquid waste. For treatment of spentwash, most of the industries follow Biomethanation process as first stage treatment process and conventional biological treatment such as Activated Sludge Process, Trickling filter as second stage treatment. Due to high concentration of dissolved pollutants even after two stage treatment process, the prescribed standards are rarely met for spentwash disposal. The prescribed standard given by Central Pollution Control Board for BOD is 100 mg/l for disposal of spentwash on land as irrigation water. Other methods for treatment and disposal of spentwash include composting, concentration and incineration, also disposal by dilution in sea or estuary. Successful treatment and disposal of spentwash mainly depend on proper management practices and attempts made to reduce the impact of spentwash on soil properties and groundwater.

Other Details

Paper ID: IJSRDV4I40579
Published in: Volume : 4, Issue : 4
Publication Date: 01/07/2016
Page(s): 557-559

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