文献类型：期刊文献

英文题名：Biochar for the removal of contaminants from soil and water: a review

作者：Qiu, Muqing[1];Liu, Lijie[2];Ling, Qian[1];Cai, Yawen[1];Yu, Shujun[1,2];Wang, Shuqin[1];Fu, Dong[3];Hu, Baowei[1];Wang, Xiangke[1,2]

机构：[1]Shaoxing Univ, Sch Life Sci, Shaoxing 312000, Peoples R China;[2]North China Elect Power Univ, Coll Environm Sci & Engn, Beijing 102206, Peoples R China;[3]North China Elect Power Univ, Dept Environm Sci & Engn, Hebei Key Lab Power Plant Flue Gas Multi Pollutan, Baoding 071003, Peoples R China

年份：2022

卷号：4

期号：1

外文期刊名：BIOCHAR

收录：SCI-EXPANDED(收录号：WOS:000769468200001)、、Scopus(收录号：2-s2.0-85126261094)、WOS

基金：This work was supported by National Key Research and Development Program of China (2017YFA0207002), the National Natural Science Foundation of China (21906052, U2067215), Beijing Outstanding Young Scientist Program.

语种：英文

外文关键词：Biochar; Heavy metal ions; Organic pollutants; Water; Soil

外文摘要：Biochar shows significant potential to serve as a globally applicable material to remediate water and soil owing to the extensive availability of feedstocks and conducive physio-chemical surface characteristics. This review aims to highlight biochar production technologies, characteristics of biochar, and the latest advancements in immobilizing and eliminating heavy metal ions and organic pollutants in soil and water. Pyrolysis temperature, heat transfer rate, residence time, and type of feedstock are critical influential parameters. Biochar's efficacy in managing contaminants relies on the pore size distribution, surface groups, and ion-exchange capacity. The molecular composition and physical architecture of biochar may be crucial when practically applied to water and soil. In general, biochar produced at relatively high pyrolysis temperatures can effectively manage organic pollutants via increasing surface area, hydrophobicity and microporosity. Biochar generated at lower temperatures is deemed to be more suitable for removing polar organic and inorganic pollutants through oxygen-containing functional groups, precipitation and electrostatic attraction. This review also presents the existing obstacles and future research direction related to biochar-based materials in immobilizing organic contaminants and heavy metal ions in effluents and soil.