改性生物炭在含重金属废水处理中的应用  

Utilization of Modified Biochar on Removal of Heavy Metals from Waste Water

作　　者：纪钢 沈喜洲[1] 沈陟[1] 陶土 JI Gang;SHEN Xizhou;SHEN Zhi;TAO Tu(Schoolof Chemical Engineering and Pharmacy,Wuhan Institute of Technology,Wuhan 430205,China)

机构地区：[1]武汉工程大学化工与制药学院,湖北武汉430205

出　　处：《武汉工程大学学报》2023年第1期1-8,75,共9页Journal of Wuhan Institute of Technology

摘　　要：改性生物炭除金属离子效率高、成本低,对污水处理具有重要意义。本文综合评述了生物炭改性方法、吸附机理、改性生物炭对重金属吸附性能影响等方面的研究进展。介绍了生物炭的不同热解温度、矿物组分和表面官能团等理化性质对吸附重金属的影响;讨论通过物理和化学改性方法改进的生物炭的物理、化学性质对重金属吸附效果的影响,探讨不同理化性质的生物炭对重金属吸附的机理。根据不同生物炭材料之间的差异,采用具有针对性的改性方法,或在生物炭中加入适当的矿物质,设计出特定用途的生物炭可能是未来研究的重要方向。Modified biochar has merits of high efficiency for removal of metal,which is of great significance for wastewater treatment. The research progress on modification methods, adsorption mechanism and influence of modified biochar on heavy metal adsorption performance was summarized. The effects of pyrolysis temperature,mineral composition,surface functional groups and other physicochemical properties of biochar on heavy metal adsorption were reviewed. The effects of physical and chemical properties of biochar modified by physical and chemical modification on heavy metal adsorption were discussed,and the mechanism of heavy metal adsorbtion by biochar with different physical and chemical properties was discussed. According to the differences between various biochar materials,it is a significant direction of designing specific biochar in the future research using targeted modification methods,or adding appropriate minerals into biochar.

关 键 词：重金属 生物炭 吸附 热解 表面官能团 

分 类 号：X703[环境科学与工程—环境工程]