Research progress of microplastic removal from water environment by biochar

被引：0
|
作者：
Su J. [1 ]
Zhan J. [2 ,3 ]
机构：
[1] School of Infrastructure Engineering, Nanchang University, Jiangxi, Nanchang
[2] School of Resources and Environment, Nanchang University, Jiangxi, Nanchang
[3] Key Laboratory of Poyang Lake Environment and Resource Utilization, Ministry of Education, Nanchang University, Jiangxi, Nanchang
来源：
Huagong Jinzhan/Chemical Industry and Engineering Progress | 2023年 / 42卷 / 10期
关键词：
adsorption; aquatic environment; biochar; influencing factors; microplastics;
D O I：
10.16085/j.issn.1000-6613.2022-2168
中图分类号：
学科分类号：
摘要：
A brand-new pollutant in the aquatic environment is microplastics. Microplastic removal by conventional water treatment techniques was more constrained. The advantages of economic and environmental protection and high removal efficiency are demonstrated by the effective adsorption of microplastics with a low spontaneous desorption rate on the diversified microporous structure, high hydrophobicity and high carbon content of biochar. However, there are still some issues, such as the inability to eliminate and breakdown microplastics and the low application of biochar in multiple environments. In this review, the current state of microplastic water pollution and conventional water treatment techniques for removing them were overviewed. Firstly, the research progress of microplastic removal by adsorption on biochar was introduced, focusing on the characteristics, action mechanism and affecting factors of biochar. Secondly, the effects of physicochemical characteristics of biochar (raw materials, preparation conditions and modification methods) and microplastics (species, grain size and structural traits), and environmental factors (pH, coexisting ion and dissolved organic matter) on adsorption behavior were summarized. The current state of biochar and microplastic coexistence in soils was described. Finally, in order to provide theoretical support for the biochar removal of common microplastics from various water bodies, some recommendations were proposed for future research, including uniform microplastic classification for targeted development of biochar materials, improved experimental conditions to more accurately simulate the real world, exploration of the mechanisms of synergistic effects of biochar and microplastics, and a focus on biochar recycling. © 2023 Chemical Industry Press. All rights reserved.
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页码：5445 / 5458
页数：13
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