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Upgrading Hydrochar from Biomass Waste Using Physical Methods for Wastewater Pollutant Remediation: A Review

文献类型： 外文期刊

作者： Liu, Ziyun 1 ; Yao, Zonglu 1 ; Zhang, Yuanhui 2 ; Huo, Lili 1 ; Jia, Jixiu 1 ; Zhao, Yanan 1 ; Kawale, Harshal 2 ; Si, Buchun 3 ; Zhao, Lixin 1 ;

作者机构： 1.CAAS, Minist Agr & Rural Affairs, Inst Environm & Sustainable Dev Agr, Key Lab Low Carbon Green Agr North China, Beijing 100081, Peoples R China

2.Univ Illinois, Dept Agr & Biol Engn, Urbana, IL 61801 USA

3.China Agr Univ, Coll Water Resources & Civil Engn, Key Lab Agr Engn Struct & Environm, Minist Agr & Rural Affairs, Beijing 100083, Peoples R China

关键词： Hydrochar; Physical activation; Pollutant adsorption; Gaseous activation; Mechanical-assisted activation

期刊名称：CURRENT POLLUTION REPORTS （ 影响因子：8.1； 五年影响因子：9.0 ）

ISSN： 2198-6592

年卷期： 2024 年 11 卷 1 期

页码：

收录情况： SCI

摘要： Purpose of ReviewHydrochar derived from biomass is a promising sustainable adsorbent for pollutants, though its efficiency is often constrained by limited pore size and active sites. Physical activation can be effectively utilized to enhance physical structure and modify surface. This environmentally friendly process is well-suited for large-scale applications in pollution mitigation.Recent FindingsGaseous and mechanical activation methods are emerging as highly effective strategies for enhancing hydrochar materials. Gaseous activation techniques can significantly enlarge surface area, develop porosity, modify surface chemistry, and control structural characteristics. In contrast, mechanical activation methods are adept at reducing particle size, increasing surface exposure, and diversifying functional groups.SummaryThis paper explores how different physical activation processes impact the functional properties of hydrochar. It delves into the mechanisms behind changes in physicochemical characteristics, offering new insights for developing advanced hydrochar materials to align with emerging technologies.

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