改性生物炭吸附固定重金属的研究进展  

Research on Adsorbing and Immobilizing Heavy Metals of Modified Biochar

作　　者：刘立[1] 

机构地区：[1]广州大学土木工程学院珠江三角洲水质安全与保护省部共建教育部重点实验室,广东广州510006

出　　处：《绿色科技》2017年第16期81-84,87,共5页Journal of Green Science and Technology

摘　　要：指出了重金属造成了土壤和水体环境的严重污染,寻找经济有效的修复重金属污染环境的方法极其紧迫。具有独特理化性质的生物炭,用于吸附固定重金属可降低重金属的迁移转化和生物有效性,展现了其良好的应用前景,但其对有些重金属离子吸附固定的效果欠佳。阐述了改性生物炭的制备及其应用。为了给生物炭的改性提供更多理论支撑,总结了生物炭吸附固定重金属的机理,提出了一些可参考的改性生物炭的方法和今后研究生物炭的建议。Heavy metals have polluted soil and water environment. It is extremely imperative for researchers to ex-plore an economical and effective method for renovating the environmental heavy metals pollution. Owing to uniquephysical--chemical properties, biochar can adsorb and immobilize heavy metals to reduce its transport, transforma-tion and bioavailability, which shows terrific prospects. A number of researchers are striving to modify biochar forimproving the physical--chemical properties and adsorption ability because biochar is not good at adsorbing all theheavy metals. This paper elaborated the productions and applications of modified biochar. In order to provide moretheoretical support for modifying biochar, the mechanisms on adsorbing and immobilizing heavy metals are also gener-alized. AL length, the paper supplied some references to researching and developing the modified biochar and gavesome suggestions for researching on biochar.

关 键 词：重金属 吸附固定 改性生物炭 

分 类 号：S153[农业科学—土壤学]