Strategic use of crop residue biochars for removal of hazardous compounds in wastewater

Seong-Heon CHO, Sungyup JUNG, Jong Hyun PARK, Sangyoon LEE, Youkwan KIM, Jechan LEE, Yiu Fai TSANG, Eilhann E. KWON

Research output: Contribution to journalArticlespeer-review

2 Citations (Scopus)

Abstract

Crop residues are affordable lignocellulosic waste in the world, and a large portion of the waste has been burned, releasing toxic pollutants into the environment. Since the crop residue is a carbon and ingredient rich material, it can be strategically used as a sorptive material for (in)organic pollutants in the wastewater after thermo-chemical valorization (i.e., biochar production). In this review, applications of crop residue biochars to adsorption of non-degradable synthetic dyes, antibiotics, herbicides, and inorganic heavy metals in wastewater were discussed. Properties (porosity, functional groups, heteroatom, and metal(oxide)s, etc.) and adsorption capacity relationships were comprehensively reviewed. The current challenges of crop residue biochars and guidelines for development of efficient adsorbents were also provided. In the last part, the future research directions for practical applications of the crop residue biochars in wastewater treatment plants have been suggested. Copyright © 2023 Elsevier Ltd. All rights reserved.

Original languageEnglish
Article number129658
JournalBioresource Technology
Volume387
Early online dateAug 2023
DOIs
Publication statusPublished - Nov 2023

Citation

Cho, S.-H., Jung, S., Park, J. H., Lee, S., Kim, Y., Lee, J., Tsang, Y. F., & Kwon, E. E. (2023). Strategic use of crop residue biochars for removal of hazardous compounds in wastewater. Bioresource Technology, 387, Article 129658. https://doi.org/10.1016/j.biortech.2023.129658

Keywords

  • Agricultural waste
  • Waste-to-resource
  • Circular bioeconomy
  • Pyrolysis
  • Water remediation

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