Wet peroxide oxidation (WPO) and catalytic wet oxidation (CWO) of oily sludge were investigated. Greater than 80% chemical oxygen demand (COD) removal from oily sludge was achieved using sodium carbonate catalysed wet oxidation (WO) under the following conditions using a 0·5 l batch reactor: temperature of 330°C and concentration of sodium carbonate 200 mg/l. Greater than 90% COD removal was achieved using WPO under the following conditions: temperature of 330°C, residence time of 9 min, hydrogen peroxide excess (HE) of 0·8 and initial COD was 20 000 mg/l. Significantly more COD could be removed from oily sludge when HE was 0·8. BOD5/COD ratio was 0·52 after the oily sludge had been treated. It was concluded that WPO was a far more effective pretreatment method for removing organic compounds from oily sludge.
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August 2012
Research Article|
August 01 2012
Pretreatment of oily sludge
Guolin Jing;
Guolin Jing
Department Head and Professor
College of Chemistry and Chemical Engineering, Northeast Petroleum University,
Daqing, China
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Mingming Luan;
Mingming Luan
Student
College of Chemistry and Chemical Engineering, Northeast Petroleum University,
Daqing, China
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Chunjie Han;
Chunjie Han
Head of Teaching and Research Section and Professor
College of Electronic Science, Northeast Petroleum University,
Daqing, China
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Tingting Chen
Tingting Chen
Student
College of Chemistry and Chemical Engineering, Northeast Petroleum University,
Daqing, China
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Publisher: Emerald Publishing
Received:
June 30 2011
Accepted:
October 17 2011
Online ISSN: 1747-6534
Print ISSN: 1747-6526
ICE Publishing: All rights reserved
2012
Proceedings of the Institution of Civil Engineers - Waste and Resource Management (2012) 165 (3): 151–155.
Article history
Received:
June 30 2011
Accepted:
October 17 2011
Citation
Jing G, Luan M, Han C, Chen T (2012), "Pretreatment of oily sludge". Proceedings of the Institution of Civil Engineers - Waste and Resource Management, Vol. 165 No. 3 pp. 151–155, doi: https://doi.org/10.1680/warm.11.00008
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