矿产综合利用2024，Vol.45Issue(6)：87-93,116,8.DOI:10.3969/j.issn.1000-6532.2024.06.014
不同类型微生物钝化固定镉污染的研究进展
Research Progress of Different Types of Microorganisms Passivation and Fixation of Cadmium Contamination
摘要
Abstract
This is an article in the field of ecological restoration of mines.In recent years,the microbial passivation and fixation has gradually become a hotspot in the field of heavy metal contamination control.Here is a review to summarize the mechanism of microbial passivation and fixation of cadmium based on the passivation and immobilization of typical strains and heavy metal cadmium:(1)Microbial cell walls and extracellular polymers(EPS)have abundant groups,such as carboxyl,hydroxyl,etc.,which can effectively adsorb Cd2+,and passivated into crystalline minerals.(2)Sulfate-reducingbacteria,phosphate-dissolving bacteria,urease-producing bacteria in the environment can generate metal precipitates through their own metabolism,and then form crystal minerals through changes in the microenvironment.Fe/Mn oxidizing microorganisms indirectly adsorb heavy metal ions through their own metabolites.To study the reaction mechanism of microbial passivation and immobilization of cadmium and the formation of microenvironment conditions of cadmium-containing crystal minerals,which is of great significance for the remediation of cadmium pollution.关键词
矿山生态修复/微生物/镉污染/钝化固定/机理Key words
Ecological restoration of mines/Microorganism/Cadmium pollution/Passivation fixation/Mechanism分类
矿业与冶金引用本文复制引用
陈瑞红,秦永丽,赖凤,蒋永荣..不同类型微生物钝化固定镉污染的研究进展[J].矿产综合利用,2024,45(6):87-93,116,8.基金项目
国家自然科学基金(52060004) （52060004）
广西高校中青年教师科研基础能力提升项目(2021KY0204) （2021KY0204）
