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Removal of zinc from aqueous solution by optimized oil palm empty fruit bunches biochar as low cost adsorbent


Zamani, Seyed Ali and Yunus, Robiah and Abd. Wahid, Samsuri and Mohd Salleh, Mohamad Amran and Asady, Bahareh (2017) Removal of zinc from aqueous solution by optimized oil palm empty fruit bunches biochar as low cost adsorbent. Bioinorganic Chemistry and Applications, 2017. art. no. 7914714. pp. 1-9. ISSN 1565-3633; ESSN: 1687-479X


This study aims to produce optimized biochar from oil palm empty fruit bunches (OPEFB), as a green, low cost adsorbent for uptake of zinc from aqueous solution. The impact of pyrolysis conditions, namely, highest treatment temperature (HTT), heating rate (HR), and residence time (RT) on biochar yield and adsorption capacity towards zinc, was investigated. Mathematical modeling and optimization of independent variables were performed employing response surface methodology (RSM). HTT was found to be the most influential variable, followed by residence time and heating rate. Based on the central composite design (CCD), two quadratic models were developed to correlate three independent variables to responses. The optimum production condition for OPEFB biochar was found as follows: HTT of 615°C, HR of 8°C/min, and RT of 128 minutes. The optimum biochar showed 15.18 mg/g adsorption capacity for zinc and 25.49% of yield which was in agreement with the predicted values, satisfactory. Results of the characterization of optimum product illustrated well-developed BET surface area and porous structure in optimum product which favored its sorptive ability.

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Official URL or Download Paper: https://www.hindawi.com/journals/bca/2017/7914714/

Additional Metadata

Item Type: Article
Divisions: Faculty of Agriculture
Faculty of Engineering
DOI Number: https://doi.org/10.1155/2017/7914714
Publisher: Hindawi Publishing Corporation
Keywords: Zinc; Oil palm
Depositing User: Mas Norain Hashim
Date Deposited: 22 Oct 2018 09:01
Last Modified: 04 Nov 2019 08:15
Altmetrics: http://www.altmetric.com/details.php?domain=psasir.upm.edu.my&doi=10.1155/2017/7914714
URI: http://psasir.upm.edu.my/id/eprint/62956
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