The Degradation of Organic Pollutants in Chemical Wastewater by Functional Bacteria Immobilized on Agricultural Waste-Derived Biochar
DOI:
https://doi.org/10.54097/a4kyeq77Keywords:
Functional bacteria, biochar modification, immobilization, electron transfer.Abstract
Agricultural waste-based biochar has attracted significant attention in wastewater treatment due to its advantages such as low raw material cost, environmental friendliness, abundant active sites, and ease of modification. The combination of agricultural waste-based biochar and functional bacteria provides an optimized solution for the effective treatment of recalcitrant organic matter in chemical wastewater. As well as this paper systematically introduces the latest research progress in this technology, aiming to provide a comprehensive overview of the application of biochar-supported functional bacteria in the treatment of organic pollutants. This study analyzes the physicochemical properties of agricultural waste-based biochar and the degradation characteristics of functional bacteria, and summarizes the main immobilization methods and processes. Furthermore, it elucidates the immobilization and degradation mechanisms of biochar-supported functional bacteria and summarizes the key factors affecting degradation efficiency. In addition, it identifies problems and challenges such as biochar adsorption site saturation that urgently need to be addressed.
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[1] Gasim, M. F., Choong, Z. Y., Koo, P. L., et al. (2022). Application of Biochar as Functional Material for Remediation of Organic Pollutants in Water: An Overview. Catalysts, 12(2), https: //doi.org/10.3390/catal12020169.
[2] Pantoja, F., Sukmana, H., Beszdes, S., et al. (2023). Removal of ammonium and phosphates from aqueous solutions by biochar produced from agricultural waste. Journal of Material Cycles and Waste Management, 25(4), 1921-1934. https: //doi. org /10.1007/s10163-023-01731-8.
[3] Yu, S. X., Zhang, W., Dong, X. W., et al. (2024). A review on recent advances of biochar from agricultural and forestry wastes: Preparation, modification and applications in wastewater treatment. Journal of Environmental Chemical Engineering, 12(1), https://doi.org/10.1016/j.jece.2023.111851.
[4] Pan, X. Q., Gu, Z. P., Chen, W. M., et al. (2021). Preparation of biochar and biochar composites and their application in a Fenton-like process for wastewater decontamination: A review. Science of the Total Environment, 754, https://doi.org/10.1016/j.scitotenv.2020.142287.
[5] Ju, F. F., Wu, Y. Y., Han, G. L., et al. (2025). Bacteria-Loaded Biochar for Cadmium Immobilization in Aqueous Solutions: Performance and Mechanisms. Catalysts, 16(1), https: // doi.org/10.3390/catal16010045.
[6] Ghodake, G. S., Shinde, S. K., Kadam, A. A., et al. (2021). Review on biomass feedstocks, pyrolysis mechanism and physicochemical properties of biochar: State-of-the-art framework to speed up vision of circular bioeconomy. Journal of Cleaner Production, 297, https: //doi.org/10.1016/j.jclepro.2021.126624.
[7] Schommer, V. A., Vanin, A. P., Nazari, M. T., et al. (2023). Biochar-immobilized spp. for heavy metals bioremediation: A review on immobilization techniques, bioremediation mechanisms and effects on soil. Science of the Total Environment, 881, https: //doi.org/10.1016/j.scitotenv.2023.163338.
[8] Schommer, V. A., Nazari, M. T., Melara, F., et al. (2024). Techniques and mechanisms of bacteria immobilization on biochar for further environmental and agricultural applications. Microbiological Research, 278, https: //doi.org/10.1016/j.micres.2024.127363.
[9] Zhang, J. Y., Li, N., Guo, R. X., et al. (2025). High-efficient immobilization of uranium by biochar loaded mixed microorganisms composed of and. Journal of Hazardous Materials, 496, https: //doi.org/10.1016/j.jhazmat.2024.135538.
[10] Xu, X. Y., Cao, X. Y., Chen, X. B., et al. (2025). Facilitating immobilization of functional bacteria and accelerating degradation of PAHs via modified biochar: Performance and mechanisms. Journal of Water Process Engineering, 70, https: //doi.org/10.1016/j.jwpe.2024.105818.
[11] Xu, W. J., Jiang, M., Zhang, W. Z., et al. (2026). Mechanisms underlying enhanced simultaneous removal of tetracycline and nitrate by Paracoccus denitrificans immobilized on biochar. Bioresource Technology, 442, https: //doi.org/10.1016/j.biortech.2023.126238.
[12] Bai, F. L., Song, M. F., Li, K. F., et al. (2026). Electron transfer-driven targeted degradation of persistent organic pollutants by integrated catalytic oxidation and engineered microbial consortia. Chemical Engineering Journal, 527, https: //doi.org/10.1016/j.cej.2023.137964.
[13] Liang, S., Wang, S. N., Zhou, L. L., et al. (2023). Combination of Biochar and Functional Bacteria Drives the Ecological Improvement of Saline-Alkali Soil. Plants-Basel, 12(2), https: //doi.org/10.3390/plants12020345.
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