Production of biochar from rice straw and its application for wastewater remediation − An overview
Open accessAbstract
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.
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Biochar research focuses mainly on agricultural biomass or forest biomass while overlooking the potential of WPW.
“However, the biochar research focuses mainly on agricultural biomass (e.g., rice or wheat straw residues) or forest biomass (e.g., virgin wood chips) while overlooking the potential of WPW [26,27].”
From Innovative Valorization of Wood Panel Waste into Activated Biochar for Efficient Phenol Adsorption (2025) · cites this paper as [26]
Cites
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Mechanisms of adsorption and functionalization of biochar for pesticides: A review
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Innovative Valorization of Wood Panel Waste into Activated Biochar for Efficient Phenol Adsorption
Bentis, A., Ceron Daza, L. D., Dia, M., Koubaa, A., & Braghiroli, F. L. (2025) · Applied Sciences · doi:10.3390/app15158518 · Cited by 7 · see citing works
- Authors
- Foong, S. Y., Chan, Y. H., Chin, B. L. F., Lock, S. S. M., Yee, C. Y., Yiin, C. L., Peng, W., & Lam, S. S.
- Affiliations
- Universiti Malaysia Terengganu (MY)
- Petronas (Malaysia) (MY)
- Curtin University Sarawak (MY)
- Universiti Teknologi Petronas (MY)
- Universiti Malaysia Sarawak (MY)
- Henan Agricultural University (CN)
- Corresponding author
- Lam, Su Shiung
- ORCID
- Venue
- Bioresource Technology
- Publisher
- Elsevier BV
- Published
- 2022-09
- Volume
- 360
- Pages
- 127588
- ISSN
- 0960-8524 (ISSN-L)
- OpenAlex
- W4284990660
- Cited by
- 157
- References
- 7
- Citations by year
- 2026: 28 · 2025: 39 · 2024: 42 · 2023: 36 · 2022: 12
- FWCI
- 1.94
- Type
- journal article
- Language
- en
- Open access
- green
- hdl.handle.net
- Licence
- Locations
- Bioresource Technology (publishedVersion)
- PubMed (publishedVersion)
- Unimas Institutional Repository (Universiti Malaysia Sarawak) (acceptedVersion)
- eSpace (Curtin University) (submittedVersion, cc-by-nc-nd)
- Funders
- Henan University (21IRTSTHN020)
- Institute of Tropical Aquaculture and Fisheries, University Malaysia Terengganu (56051)
- Topics
- Physical Sciences › Environmental Science › Water Science and Technology › Adsorption and biosorption for pollutant removal
- Physical Sciences › Engineering › Biomedical Engineering › Environmental remediation with nanomaterials
- Physical Sciences › Engineering › Biomedical Engineering › Thermochemical Biomass Conversion Processes
- Keywords
- biochar, rice straw, wastewater remediation, adsorption, pyrolysis, biochar activation, acid modification, magnetic biochar, electrodeposition, metal ion removal, organic pollutant removal, agricultural waste valorization
- MeSH terms
- Adsorption, Charcoal, Oryza, Wastewater
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