Research progress in the adsorption of heavy metal ions from wastewater by modified biochar.

Jing HONG; Yongyong DAI; Qijun NIE; Zhiqiang LIAO; Liangcai PENG; Dan SUN

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Research progress in the adsorption of heavy metal ions from wastewater by modified biochar.

Author: Jing HONG ¹ ; Yongyong DAI ² ; Qijun NIE ³ ; Zhiqiang LIAO ⁴ ; Liangcai PENG ¹ ; Dan SUN ¹
Author Information

1. School of Life and Health Sciences, Hubei University of Technology, Wuhan 430068, Hubei, China.
2. School of Material Science and Chemical Engineering, Hubei University of Technology, Wuhan 430068, Hubei, China.
3. Economic Crop Research Institute, Hubei Academy of Agricultural Sciences, Wuhan 430064, Hubei, China.
4. Grain and Oil Research Institute, Yichun Academy of Sciences, Yichun 336000, Jiangxi, China.
Publication Type:English Abstract
Keywords: adsorption; heavy metals; modified biochar; wastewater
MeSH: Charcoal/chemistry*; Metals, Heavy; Adsorption; Wastewater/chemistry*; Water Pollutants, Chemical/chemistry*; Water Purification/methods*; Heavy Ions; Waste Disposal, Fluid/methods*
From: Chinese Journal of Biotechnology 2024;40(12):4467-4479
CountryChina
Language:Chinese
Abstract: The rapid development of modern industries is accompanied with the aggravating water heavy metal pollution, which poses a potential threat to the aquatic environment and the health of local populations. As an efficient and economical adsorbent, biochar demonstrates the adsorption capacity for heavy metal ions and its adsorption capacity is significantly enhanced after modification. Therefore, biochar can effectively mitigate environmental pollution. By reviewing the existing studies, we summarize the modification methods of biochar, compare the advantages and disadvantages of physical, biological, and chemical modification methods, analyze the effects of modification on the adsorption capacity of biochar for heavy metal ions, and expound the modification mechanism of biochar. On this basis, this article puts forward the future research directions of the application of biochar in treating coexisting pollutants, aiming to provide a reference for the application of biochar in the purification of heavy metal-containing wastewater.