Utilization of esterified sago bark fibre waste for removal of oil from palm oil mill effluent

Rafeah, Wahi and Chuah Abdullah, Luqman and Nourouzi Mobarekeh, Mohsen and Ngaini, Zainab and Choong Shean Yaw, Thomas (2017) Utilization of esterified sago bark fibre waste for removal of oil from palm oil mill effluent. Journal of Environmental Chemical Engineering, 5 (1). ISSN 22133437

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Abstract

With oil and grease content of 4000-8000mg/l in palm oil mill effluent (POME), the commonly used ponding system often fails to produce treated effluent that meets the minimum standard of treated effluent. The present study investigates the efficiency of sago bark (SB) and esterified sago bark (ESB) for removal of emulsified oil from POME. Oil removal experiments were conducted at different batch experimental conditions: namely adsorbent dosage, contact time, temperature and pH. In overall, the oil removal efficiency of both SB and ESB increased with the increasing of sorbent dosage and contact time. 24-h oil adsorption test afforded oil removal efficiency of 57.77% (SB) and 80.23% (ESB).On the other hand, the oil removal efficiency of both SB and ESB decreased with the increasing temperature. Acidic pH was favorable pH condition for high oil removal efficiency in POME. There was a good correlation (R2>9.5) between experimental data and the intra-particle diffusion model for both SB and ESB. The adsorption of oil in POME using SB was best described by Freundlich isotherm (R2=0.998), indicating heterolayer adsorption of oil on SB. The adsorption of oil in POME using ESB was better represented using Langmuir isotherm (R2=0.992), indicating a monolayer adsorption of oil onto the ESB surface. In conclusion, ESB showed better potential for use as sorbent for removing emulsified oil from wastewater, particularly POME.

Item Type: Article
Uncontrolled Keywords: Esterified sago bark; Oil removal; Palm oil mill effluent; Sago bark; Sago fibre, research, Universiti Malaysia Sarawak, unimas, university, universiti, Borneo, Malaysia, Sarawak, Kuching, Samarahan, ipta, education
Subjects: S Agriculture > S Agriculture (General)
T Technology > T Technology (General)
Divisions: Academic Faculties, Institutes and Centres > Faculty of Resource Science and Technology
Depositing User: Ibrahim
Date Deposited: 24 Jan 2017 01:16
Last Modified: 24 Jan 2017 01:16
URI: http://ir.unimas.my/id/eprint/14961

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