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Treatment of distillery spent-wash by ozonation and biodegradation: significance of pH reduction and inorganic carbon removal before ozonation.

Kumar, A, Saroj, DP, Tare, V and Bose, P (2006) Treatment of distillery spent-wash by ozonation and biodegradation: significance of pH reduction and inorganic carbon removal before ozonation. Water Environ Res, 78 (9). pp. 994-1004.

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Abstract

This study is aimed at exploring strategies for mineralization of refractory compounds in distillery effluent by anaerobic biodegradation/ozonation/aerobic biodegradation. Treatment of distillery spent-wash used in this research by anaerobic-aerobic biodegradation resulted in overall COD removal of 70.8%. Ozonation of the anaerobically treated distillery spent-wash was carried out as-is (phase I experiments) and after pH reduction and removal of inorganic carbon (phase II experiments). Introduction of the ozonation step resulted in an increase in overall chemical oxygen demand (COD) removal, with the highest COD removals of greater than 95% obtained when an ozone dose of approximately 5.3 mg ozone absorbed/mg initial total organic carbon was used. The COD removal during phase II experiments was slightly superior compared with phase I experiments at similar ozone doses. Moreover, efficiency of ozone absorption from the gas phase into distillery spent-wash aliquots was considerably enhanced during phase II experiments.

Item Type: Article
Authors :
AuthorsEmailORCID
Kumar, AUNSPECIFIEDUNSPECIFIED
Saroj, DPUNSPECIFIEDUNSPECIFIED
Tare, VUNSPECIFIEDUNSPECIFIED
Bose, PUNSPECIFIEDUNSPECIFIED
Date : September 2006
Identification Number : https://doi.org/10.2175/106143005X78636
Uncontrolled Keywords : Anaerobiosis, Biodegradation, Environmental, Bioreactors, Carbon, Food-Processing Industry, Hydrogen-Ion Concentration, Ozone, Time Factors, Water Pollutants, Chemical, Water Pollution, Chemical, Water Purification
Related URLs :
Depositing User : Symplectic Elements
Date Deposited : 28 Mar 2017 13:10
Last Modified : 28 Mar 2017 13:10
URI: http://epubs.surrey.ac.uk/id/eprint/805353

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