摘要
工业废水、废渣中铬的存在对环境和人体有着潜在危害。生物吸附修复技术因为其技术上的可行性、经济性以及对环境影响较小的特点,成为从污染场地中去除有毒金属最具前景的技术之一。介绍了铬污染来源、铬的主要存在形式及其毒性,同时对铬吸附机制进行了分类讨论;分析了细菌、真菌、藻类、植物以及其他改性材料对铬的生物吸附特性,分别阐释了其吸附机理及主要影响因素;提出了生物吸附机理的研究、生物吸附参数的优化、生物吸附剂的化学改性是实现生物吸附修复技术规模化应用的关键。
The presence of chromium in industrial wastes is a potential hazard to the environment and humans.Bioadsorption remediation technology has become one of the most promising technologies for removing toxic metals from contaminated sites for its technical feasibility,low cost and low environmental impact.This review introduced the source of chromium contamination,the main species of interest and their toxicity,and discussed the classification of chromium adsorption mechanism.The biosorption characteristics of chromium by bacteria,fungi,algae,plants and other modified materials were discussed,and their adsorption mechanism and main influencing factors were explained respectively.It was proposed that the research of biosorption mechanism,the optimization of biosorption parameters,and the chemical modification of biosorbents were the key points to realize the large-scale application of biosorption remediation technology.
作者
张若诗
田永强
ZHANG Ruo-shi;TIAN Yong-qiang(Key Laboratory of Leather Chemistry and Engineering(Sichuan University),Ministry of Education,Chengdu 610065,China;Department of Biomass and Leather Engineering,College of Biomass Science and Engineering,Sichuan University,Chengdu 610065,China)
出处
《环境工程》
CAS
CSCD
北大核心
2020年第11期187-195,共9页
Environmental Engineering
基金
国家重点研发计划(2018YFC1802201)。
关键词
铬污染
生物质材料
生物吸附
生物修复
chromium contamination
biomaterial
biosorption
bioremediation
