Electro persulphate oxidation for polishing of biologically treated palm oil mill effluent (POME)

Malaysia alone produces more than 49 million m3 palm oil mill effluent per year. Biological treated palm oil mill effluent via ponding system often fails to fulfill the regulatory discharge standards. This is due to remaining of non-biodegradable organics in the treated effluent. Thus, the aim of th...

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Bibliographic Details
Published in:Journal of environmental management 2017-05, Vol.193, p.458-469
Main Authors: Bashir, Mohammed J.K., Wei, Chong Jia, Aun, Ng Choon, Abu Amr, Salem S.
Format: Article
Language:English
Subjects:
Biological Oxygen Demand Analysis
Central composite design
Electro persulphate oxidation
Industrial Waste
Models, Theoretical
Optimization
Palm oil mill effluent
Plant Oils
Ponds
Post treatment
Waste Disposal, Fluid
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Summary:Malaysia alone produces more than 49 million m3 palm oil mill effluent per year. Biological treated palm oil mill effluent via ponding system often fails to fulfill the regulatory discharge standards. This is due to remaining of non-biodegradable organics in the treated effluent. Thus, the aim of this study was to resolve such issue by using electro persulphate oxidation process, for the first time, as a post treatment of palm oil mill effluent. Central composite design in response surface methodology was used to analyze and optimize the interaction of operational variables (i.e., current density, contact time, initial pH and persulphate dosage) targeted on maximum treatment efficiency. The significance of quadratic model of each response was determined by analysis of variance, where all models indicated sufficient significance with p-value 
ISSN:0301-4797
1095-8630
DOI:10.1016/j.jenvman.2017.02.031