Production of biochar from rice straw and its application for wastewater remediation � An overview

Foong, S.Y. and Chan, Y.H. and Chin, B.L.F. and Lock, S.S.M. and Yee, C.Y. and Yiin, C.L. and Peng, W. and Lam, S.S. (2022) Production of biochar from rice straw and its application for wastewater remediation � An overview. Bioresource Technology, 360. ISSN 09608524

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Abstract

The valorization of biochar as a green and low-cost adsorbent provides a sustainable alternative to commercial wastewater treatment technologies that are usually chemical intensive and expensive. This review presents an in-depth analysis focusing on the rice straw-derived biochar (RSB) for removal of various types of contaminants in wastewater remediation. Pyrolysis is to date the most established technology to produce biochar. Subsequently, biochar is upgraded via physical, chemical or hybrid activation/modification techniques to enhance its adsorption capacity and robustness. Thus far, acid-modified RSB is able to remove metal ions and organic compounds, while magnetic biochar and electrochemical deposition have emerged as potential biochar modification techniques. Besides, temperature and pH are the two main parameters that affect the efficiency of contaminants removal by RSB. Lastly, the limitations of RSB in wastewater remediation are elucidated based on the current advancements of the field, and future research directions are proposed. © 2022 Elsevier Ltd

Item Type: Article
Additional Information: cited By 42
Uncontrolled Keywords: Costs; Electrochemical deposition; Metal ions; Metals; Pollution; Reduction; Wastewater treatment, Biochar; Green costs; In-depth analysis; ITS applications; Low-cost adsorbents; Physical activation; Rice straws; Valorisation; Wastewater remediation; Wastewater treatment technologies, Chemical activation, charcoal; metal ion; organic compound; charcoal, adsorption; biochar; remediation; rice; valorization; wastewater treatment, adsorption; biomass production; bioremediation; chemical modification; human; nonhuman; pyrolysis; Review; waste component removal; waste water management; water pollutant; chemistry; Oryza; wastewater, Adsorption; Charcoal; Oryza; Waste Water
Depositing User: Mr Ahmad Suhairi UTP
Date Deposited: 19 Dec 2023 03:22
Last Modified: 19 Dec 2023 03:22
URI: https://khub.utp.edu.my/scholars/id/eprint/16426

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