微生物浸出技术及其研究进展  

Research Progress and Trend of Microbial Leaching Technology

作　　者：雷英杰[1,2] 艾翠玲[1,3] 张国春[1] 庄肃凯[1] 

机构地区：[1]陕西省尾矿资源综合利用重点实验室商洛学院,陕西商洛726000 [2]天津理工大学化学化工学院,天津300384 [3]福州大学土木工程学院,福建福州350108

出　　处：《广州化工》2016年第14期12-14,共3页GuangZhou Chemical Industry

基　　金：陕西省尾矿资源综合利用重点实验室开放基金(2014SKY-WK005;2014SKY-WK008);商洛市科技计划项目(SK-2013-5)

摘　　要：基于低品位矿产资源现状,微生物浸出技术成为矿物开发利用的重要途径。在回顾微生物浸出技术的发展基础上,就常见的微生物种类、生物浸出机理以及浸出效率的影响因素等研究进展进行了总结。微生物本身特性和环境因素都会影响矿物的微生物浸出效率,除了最合适的p H值和20%以内的矿浆浓度,矿石粒度也不能太细,同时加以充分搅拌,使矿石与微生物充分接触,为浸出体系提供充足的O_2和CO_2。然而,目前对于高效菌种培育和散体渗流过程等研究较欠缺,需要对微生物浸矿工艺进行改进和完善。According to the situation of mineral resources with low grade in China,utilizing and developing the bioleaching technology could be a key approach to the resource exploitation. With the summary of bioleaching technology development,recent research progress on the different types of microbes, the possible interaction mechanisms for industrial application in bioleaching process,and the main factors on affecting the leaching efficiency of bioleaching from the ores were reviewed. Results showed that the feature of microbe and environmental factors were considered to affect the efficiency of microbial leaching process. In addition to control the p H value and pulp density less than 20%,the particle size can not be very small and continuous stirring was also needed to provide sufficient oxygen and carbon dioxide for leaching system. However,it should be noted that the procedure of bacteria cultivation and filling techniques needed further study,in order to improve the efficiency of bioleaching technology for mineral resources.

关 键 词：微生物浸出 浸出机理 浸出效率 研究进展 

分 类 号：TD853.37[矿业工程—金属矿开采]