嗜酸性浸矿菌对不同外源黄铁矿的利用率研究  

Reasearch for the Utilization Efficiency of Different Adscititious Pyrite by Acidophilic Bacteria

作　　者：彭阳[1] 徐乐昌[1] 孙占学[2] 刘亚洁[2] PENG Yang XU Le-chang SUN Zhan-xue LIU Ya-jie(Beijing Research Institute of Chemical Engineering and Metallurgy, CNNC, Beijing 101149,China East China Institute of Technology, Nanchang 330013,China)

机构地区：[1]核工业北京化工冶金研究院,北京101149 [2]东华理工大学,江西南昌330013

出　　处：《铀矿冶》2017年第3期213-216,221,共5页Uranium Mining and Metallurgy

基　　金：863计划资助项目(2012AA061504)

摘　　要：某矿床铀矿石中黄铁矿含量较低,为提高矿石的生物可浸性,需选择并添加一种便于浸矿菌利用的黄铁矿。本文利用某铀矿富集得到的嗜酸性浸矿菌B3mYP1Q-C,对3种不同产地的黄铁矿进行黄铁矿利用摇瓶试验,试验所用混合菌群B3mYP1Q-C对选取的3种外源黄铁矿均可利用,但利用率差别较大,江西某铜矿黄铁矿精矿的利用率最高;同时,经过设置添加含氟矿石对照试验组,证明了含氟铀矿石会影响微生物菌种活性,亦会降低微生物对黄铁矿的利用能力。An uranium mine is not conducive to the bioleaching because of low pyrite content in ore. In order to improve the possibility for biological leaching, it is required to add a kind of pyrite to the mine for bacteria utilizing. An acidophilic leaching bacteria named B3mYPIQ-C which was gathered from an uranium mine is used to carry out a shake flask test on three different origin pyrite to select the appropriate pyrite for the test in this paper. The test results show that the acidophilic leaching bacteria named B3mYP1Q-C has different utilization efficiency on these three different origin pyrite. The pyrite from a Jiangxi copper mine has the highest utilization efficiency. The controlled trials test also proved that the fluoric contained uranium ore may affect the activity of microorganism strains, as the result, it will also reduce the microorganism＇s ability to utilize pyrite.

关 键 词：浸矿菌 外源黄铁矿 利用率 

分 类 号：TL212.1[核科学技术—核燃料循环与材料]