Palm oil mill secondary effluent (POMSE) treatment via photocatalysis process in presence of ZnO-PEG nanoparticles

Zainuri, Nur Zarifah and Hairom, Nur Hanis Hayati and Abu Bakar Sidik, Dilaelyana and Desa, Amira Liyana and Misdan, Nurasyikin and Yusof, Norhaniza and Mohammad, Abdul Wahab (2018) Palm oil mill secondary effluent (POMSE) treatment via photocatalysis process in presence of ZnO-PEG nanoparticles. Journal of Water Process Engineering, 26. pp. 10-16. ISSN 2214-7144

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Official URL: https://doi.org/10.1016/j.jwpe.2018.08.009

Abstract

Palm oil mill secondary effluent (POMSE) has high colour intensity, turbidity and organic load of biochemical oxygen demand which still not achieved the discharged requirement by department of environment and led to detrimental to the aquatic life. Photocatalysis process is one of the promising method in wastewater treatment due to its advantages. This study reports on the POMSE treatment using photocatalysis process in presence of ZnO-polyethylene glycol (ZnO-PEG) nanoparticles. The characterization results using fourier-transform infrared spectroscopy, X-Ray diffraction and transmission electron microscopy show that there are no impurities present in the samples and presenting the nature and chemical bonds of ZnO-PEG besides having less agglomeration and smaller average in size (25–150 nm) compared to commercial ZnO (25–200 nm). ZnO-PEG nanoparticles have a great potential in degradation of POMSE and this is supported with the results obtained from the experimental works. Four potential factors which are different type of (A) photocatalysts, (B) pH of the POMSE, (C) ZnO-PEG loading and (D) concentration of POMSE were evaluated for the significance design of experiment. It is found that all the main factors were significant, with contributions of (A)66%, (B)73%, (C)84% and (D)84% respectively, to the POMSE degradation. Accordingly, the most favorable condition for the photocatalysis degradation process of POMSE is under pH 6.5 in presence of 0.5 g/L ZnO-PEG for the 50% of POMSE dilution. It is believed that this integrated approach can be implemented in the industry to achieve discharged standard of POMSE and maintain the green environment for future generation.

Item Type:	Article
Uncontrolled Keywords:	Palm oil mill secondary effluent; Photocatalysis; Zinc oxide; Nanoparticles
Subjects:	T Technology > TP Chemical technology > TP155-156 Chemical engineering
Divisions:	Faculty of Engineering Technology > Department of Civil Engineering Technology
Depositing User:	Miss Afiqah Faiqah Mohd Hafiz
Date Deposited:	17 Nov 2021 02:07
Last Modified:	17 Nov 2021 02:07
URI:	http://eprints.uthm.edu.my/id/eprint/3365

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