Progress in Preparation and Application of Modified Biochar for Improving Heavy Metal Ion Removal From Wastewater

被引：97
作者：
Godwin P.M. [1 ,2 ]
Pan Y. [3 ]
Xiao H. [1 ]
Afzal M.T. [2 ]
机构：
[1] Department of Chemical Engineering & Limerick Pulp and Paper Centre, University of New Brunswick, Fredericton, E3B 5A3, NB
[2] Department of Mechanical Engineering, University of New Brunswick, Fredericton, E3B 5A3, NB
[3] School of Chemistry and Chemical Engineering, Guangxi University, Nanning
来源：
Journal of Bioresources and Bioproducts | 2019年 / 4卷 / 01期
基金：
中国国家自然科学基金;
关键词：
adsorption; heavy metal ion; modified biochar;
D O I：
10.21967/jbb.v4i1.180
中图分类号：
学科分类号：
摘要：
Modified biochar (BC) is reviewed in its preparation, functionality, application in wastewater treatment and regeneration. The nature of precursor materials, preparatory conditions and modification methods are key factors influencing BC properties. Steam activation is unsuitable for improving BC surface functionality compared with chemical modifications. Alkali-treated BC possesses the highest surface functionality. Both alkali modified BC and nanomaterial impregnated BC composites are highly favorable for enhancing the adsorption of different contaminants from wastewater. Acidic treatment provides more oxygenated functional groups on BC surfaces. Future research should focus on industry-scale applications and competitive sorption for contaminant removal due to scarcity of data. © 2019 Nanjing Forestry University
引用
收藏
页码：31 / 42
页数：11
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