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
Authors:
- Adeleke A. OyekanmiAdeleke A. Oyekanmi
- Mohammed B. AlshammariMAMohammed B. Alshammari
- Mohamad Nasir Mohamad IbrahimMohamad Nasir Mohamad Ibrahim
- Marlia Mohd HanafiahMarlia Mohd Hanafiah
- Ashraf Y. ElnaggarAEAshraf Y. Elnaggar
- Akil AhmadAkil Ahmad
- Adeleke Teslim OyediranAOAdeleke Teslim Oyediran
- Mohd Arif RosliMohd Arif Rosli
- Siti Hamidah Mohd SetaparSiti Hamidah Mohd Setapar
- Nik Norsyahariati Nik DaudNDNik Norsyahariati Nik Daud
- Enas E. HusseinEHEnas E. Hussein
Open Access
Abstract
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.Keywords
Funding Information
- Ministry of Higher Education, Malaysia (304/PKIMIA/6501153/E128)
- Taif University (TURSP-2020/32)
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