摘要
对某低品位铀矿石进行了生物浸出试验研究。试验结果表明:该铀矿石采用细菌浸出时,对铀的浸出效果明显优于常规酸浸;浸矿菌株为需氧菌,但只需极微量氧气即可生存,在缺氧条件下细菌也能在矿柱中附着生长,并快速氧化二价铁。研究结果可为地下筑堆中采用细菌浸出的可行性提供依据。
Bioleaching experiment of a low grade uranium ore was carried out. The results show that the leaching effect of uranium by bacteria was obviously better than that by conventional acid leaching. The leaching strains are aerobic bacteria, but it only needs a small amount of oxygen to survive. Under the anoxic condition, bacteria can also attach and grow in the ore pillar and oxidize ferrous rapidly. The results can provide a basis for the feasibility of bioleaching in underground heap construction.
作者
张静敏
刘辉
程浩
郑英
孟运生
ZHANG Jing-min;LIU hui;CHENG Hao;ZHENG Ying;MENG Yun-sheng(Beijing Research Institute of Chemical Engineering and Metallurgy,CNNC,Beijing 101149,China)
出处
《铀矿冶》
CAS
2019年第3期177-180,共4页
Uranium Mining and Metallurgy
关键词
铀矿石
低品位
生物浸出
uranium ore
low grade
bioleaching
