摘要
氧化亚铁硫杆菌(Thiobacillus ferrooxidans,T.f菌)在矿产资源全面节约和高效利用领域起着重要作用。概述了T.f菌生理学特性、浸出机理和及其浸矿过程影响因素,重点论述T.f菌浸矿的直接、间接机理,并梳理双氧化系统(铁氧化系统和硫氧化系统)的研究近况和细菌产生的胞外分泌物(Extracellular Polymeric Substances,EPS)在浸矿过程中的作用。最后阐述T.f菌在各类金属硫化物提取中的研究进展,评述了各类应用研究目前有待深入的方向,旨在为今后低品位矿产资源的高效提取与利用提供支撑。
Theiobacillus ferrooxidans(T.f)plays an important role in the overall conservation and efficient use of mineral resources.There is a lot of research on the use of T.f bacteria to extract minerals with valuable metals,whereas there is a lack of systematic summary.Therefore,this paper introduces the physiological characteristics of T.f bacteria,the mechanism of immersion and the influencing factors of its immersion process.In addition,the direct and indirect mechanisms of T.f bacteria immersion are discussed,and the research status of the double oxidation system(iron oxidation system and sulfur oxidation system)and the role of Extracellular Polymeric Substances(EPS)produced by bacteria in the immersion process are discussed.Finally,the research progress of T.f bacteria in the extraction of various types of metal sulphides is expounded,and the direction of various kinds of applied research is still to be furthered,with the aim of providing a theoretical basis for the development direction of the efficient extraction and utilization of low-grade mineral resources in the future.
作者
宋霞
杨爱江
胡霞
牛阿萍
张青青
田怡
SONG Xia;YANG Aijiang;HU Xia;NIU Aping;ZHANG Qingqing;TIAN Yi(College of Resource and Environmental Engineering, Guizhou University, Guiyang 550025, China;The Science Park Development Co., Ltd., of Guizhou University, Guiyang 550025, China;Guida Yuanheng Environmental Protection Technology Co., Ltd., Guiyang 550025, China)
出处
《矿产保护与利用》
2021年第6期157-164,共8页
Conservation and Utilization of Mineral Resources
基金
贵州省国内生态学一流学科建设项目(GNYL[2017]007)
贵州省科技计划项目(黔科合基础[2020]1Y195)
贵州大学课题项目(700714182214)。
关键词
氧化亚铁硫杆菌
浸出机理
双氧化系统
胞外聚合物
fhiobacillus ferrooxidans
leaching mechanism
double oxidation system
extracellular polymeric substances
