Application of sugarcane bagasse for passive anaerobic biotreatment of sulphate rich wastewaters

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• 作者：Ali Hussain ; Javed Iqbal Qazi
• 刊名：Applied Water Science
• 出版年：2016
• 出版时间：June 2016
• 年：2016
• 卷：6
• 期：2
• 页码：205-211
• 全文大小：589 KB
• 刊物主题：Hydrogeology; Water Industry/Water Technologies; Industrial and Production Engineering; Waste Water Technology / Water Pollution Control / Water Management / Aquatic Pollution; Nanotechnology; Private International Law, International & Foreign Law, Comparative Law;
• 出版者：Springer Berlin Heidelberg
• ISSN：2190-5495
• 卷排序：6

文摘

Biological treatment of sulphate-rich wastewaters employing dissimilatory sulphate reducing bacteria as remedial agents is an attractive technique and has gained importance in the last few years. Industrial effluents enriched with sulphates are generally deficient in electron donors. And thus cannot be treated biologically without supplementation of carbon through an external source. For scalable operations, however, the carbon source must not be expensive. In this context, present study reports the efficiency of biological sulphate reduction using sugarcane bagasse as a cost-effective carbon source. An average 0.00391 ± 0.001 gL−1 day−1 (3.91 mgL−1 day−1) sulphate reduction was observed reaching maximally to 0.00466 ± 0.001 gL−1 day−1 (4.66 mgL−1 day−1) while employing Desulfovibrio fructosovorans-HAQ2 and Desulfovibrio piger-HAQ6 in a 60-day trial of anaerobic incubation using sugarcane bagasse as growth substrate. These findings will be helpful in developing economical bioremediation processes tending to operate for a longer period of time to reduce sulphate contents of contaminated waters.KeywordsCarbon sourceEconomical bioremediationElectron donorPassive treatmentSugarcane bagasseSulphate reduction