生物炭改性技术及对重金属去除研究进展  

Research progress of biochar modification technology and heavy metal removal

作　　者：张震 田追 杨斌 杨金辉 周书葵 于秀明 朱文韬 Zhang Zhen;Tian Zhui;Yang Bin;Yang Jinhui;Zhou Shukui;Yu Xiuming;Zhu Wentao(School of Civil Engineering,University of South China,Hengyang 421001,China)

机构地区：[1]南华大学土木工程学院,湖南衡阳421001

出　　处：《煤炭与化工》2023年第3期154-160,共7页Coal and Chemical Industry

基　　金：国家自然科学基金资助项目(21177053,51174117);湖南省研究生科研创新项目(CX20220990)。

摘　　要：生物炭是经过热解或气化处理的生物质固体产品,生物炭作为可再生资源吸附剂用于水处理,将获得较好的环境效益。利用物理或化学等方法对生物炭进行表面改性,以提高其目标应用性能。叙述了生物炭吸附剂的改性方法,阐明了吸附剂对水中重金属的去除效果及去除机理,分析了反应体系的pH值、反应温度、生物炭吸附剂投加量等因素对生物炭吸附性能的影响,并对当前的研究趋势、前景和研究需求进行了讨论。Biochar is a solid product of biomass treated with pyrolysis or gasification,As a renewable resources adsorbent for water treatment,biochar will obtain better environmental benefits.The surface of biochar was modified by physical or chemical methods to improve its target application performance.The modification method of biochar adsorbent was described,the removal effect and mechanism of heavy metals in water by adsorbent were expounded,the effects of pH value of reaction system,reaction temperature and dosage of biochar adsorbent on the adsorption performance of biochar were analyzed,and the current research trends,prospects and research needs are also discussed.

关 键 词：生物炭 改性 水处理 吸附性能 重金属 机理 

分 类 号：X783[环境科学与工程—环境工程]