Highly Effective Cow Bone Based Biocomposite for the Sequestration of Organic Pollutant Parameter from Palm Oil Mill Effluent in a Fixed Bed Column Adsorption System

Polymers

Siti Hamidah Mohd Setapar¹  Mohammed B. Alshammari²  Akil Ahmad²  Nik Norsyahariati Nik Daud³  Adeleke A. Oyekanmi⁴  Marlia Mohd Hanafiah⁴  Ashraf Y. Elnaggar⁵  Adeleke Teslim Oyediran⁶  Mohd Arif Rosli⁷  Enas E. Hussein⁸  Mohamad Nasir Mohamad Ibrahim⁹ 

[1] Centre of Lipids Engineering and Applied Research, Universiti Teknologi Malaysia, Bahru 81310, Malaysia;Chemistry Department, College of Sciences and Humanities, Prince Sattam Bin Abdulaziz University, Al-Kharj 11942, Saudi Arabia;Department of Civil Engineering, Faculty of Engineering, Universiti Putra Malaysia, Kuala Lumpur 43400, Malaysia;Department of Earth Sciences and Environment, Faculty of Science and Technology, The National University of Malaysia (UKM), Bangi 43600, Selangor, Malaysia;Department of Food Nutrition Science, College of Science, Taif University, P.O. Box 11099, Taif 219944, Saudi Arabia;Department of Geoscience, Institute of Hydrocarbon Recovery, Univerisiti Teknologi Petronas (UTP), Perak 32610, Malaysia;Faculty of Engineering Technology, Universiti Tun Hussein Onn Malaysia, Parit Raja 86400, Malaysia;National Water Research Centre, P.O. Box 74, Shubra, El-Kheima 13411, Egypt;School of Chemical Sciences, Universiti Sains Malaysia, Penang 11800, Malaysia;

关键词: biosorbent;    biocomposites;    organic pollutants;    palm oil mill effluent;    fixed bed column;   

DOI  :  10.3390/polym14010086

来源: DOAJ

【 摘 要 】

The reduction of chemical oxygen demand (COD) from palm oil mill effluent (POME) is very significant to ensure aquatic protection and the environment. Continuous adsorption of COD in a fixed bed column can be an effective treatment process for its reduction prior to discharge. Adsorption capacity of bone derived biocomposite synthesized from fresh cow bones, zeolite, and coconut shells for the reduction in the organic pollutant parameter was investigated in this study in a fixed bed column. The effect of influent flow rate (1.4, 2.0, and 2.6 mL/min) was determined at an influent pH 7. The optimum bed capacity on the fabricated composite of surface area of 251.9669 m²/g was obtained at 1.4 mL/min at breakthrough time of 5.15 h influent POME concentration. The experimental data were fitted to Thomas, Adams–Bohart, and Yoon–Nelson models fixed bed adsorption models. It was revealed that the results fitted well to the Adams Bohart model with a correlation coefficient of R² > 0.96 at different influent concentration. Adsorption rate constant was observed to increase at lower flow rate influent concentration, resulting in longer empty bed contact time (EBCT) for the mass transfer zone of the column to reach the outlet of the effluent concentration. In general, the overall kinetics of adsorption indicated that the reduction in COD from POME using a bone-biocomposite was effective at the initial stage of adsorption. The pore diffusion model better described the breakthrough characteristics for COD reduction with high correlation coefficient. Shorter breakthrough time compared to EBCT before regeneration indicated that the bone composite was suitable and effective for the reduction in COD from POME using fixed bed column adsorption.

【 授权许可】

Unknown