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The Combined Effect of Ultrasonic and Microwave Pre-Treatment on Bio-Methane Generation from Co-Digestion of Petrochemical Wastewater

Siddique, Md. Nurul Islam and Mimi Sakinah, A. M. and Zularisam, A. W. (2017) The Combined Effect of Ultrasonic and Microwave Pre-Treatment on Bio-Methane Generation from Co-Digestion of Petrochemical Wastewater. Journal of Cleaner Production, 145. pp. 303-309. ISSN 0959-6526 (print), 1879-1786 (online)

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Abstract

This work investigates the combined influence of ultrasonic and microwave pre-treatment on bio-methane generation from anaerobic digestion of petrochemical wastewater and waste activated sludge. The results revealed that co-digestion of waste activated sludge with petrochemical wastewater produced approximately 0.22 L CH4/g VSadded. However, the highest bio-methane generations from individual digestion of petrochemical wastewater and un-pretreated waste activated sludge were 0.19 and 0.17 L CH4/g VSadded, respectively. In addition, co-digestion enhanced bio-methane generation by 18%–32% relative to individual digestion of the wastes. Using microwave and ultrasonic pre-treatments on the waste sludges before the co-digestion process resulted in supplementary enhancement of bio-methane generation by 53% and 25%, respectively, relative to co-digestion with un-pretreated waste activated sludges. The maximum biogas and bio-methane productions, 0.47 L/g VSadded and 0.33 L CH4/g VSadded, were attained from the co-digestion of 30-min microwave pre-treated waste activated sludge and petrochemical wastewater, respectively. The scientific contribution of the present work on the influence of microwave pre-treatment may play a role in the development of an energy-efficient strategy for waste management.

Item Type: Article
Uncontrolled Keywords: Anaerobic co-digestion; Petrochemical wastewater; Microwave pre-treatment; Methane production; Ultrasonic pre-treatment
Subjects: T Technology > TD Environmental technology. Sanitary engineering
Faculty/Division: Faculty of Engineering Technology
Depositing User: Dr. Md. Nurul Islam Siddique
Date Deposited: 29 Mar 2017 03:53
Last Modified: 31 Oct 2017 04:19
URI: http://umpir.ump.edu.my/id/eprint/16982
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