摘要
针对低硫铀矿生物浸出,采用外源添加黄铁矿强化微生物浸铀,开展三种不同类型黄铁矿对微生物浸铀的影响研究。结果表明:添加黄铁矿可有效降低浸出体系pH,为微生物提供相对良好的浸出环境;添加黄铁矿促进体系内Fe2+快速氧化和氧化还原电位值迅速升高;黄铁矿体系与未添加黄铁矿空白体系相比,铀浸出率提高1.73%~5.53%;添加黄铁矿可降低微区黄钾铁矾等沉淀形成。
In order to enhance extraction of uranium from low-sulfur uranium ore,bioleaching combined with different type pyrites were used to improve uranium leaching rate.The results show that pH value of pyrite system is lower than that of leaching system without pyrite addition,which provides a relatively good bioleaching environment.Fe2+can be oxidized rapidly and Ehvalue rises severely by adding pyrite.Compared with blank control group,leaching rate of uranium in pyrite system rises obviously by 1.73%—5.53%.Jarosite precipitation on surface of uranium ore is obviously reduced by adding pyrite.
作者
葛玉波
周仲魁
方晓骐
孙占学
王廷健
王世俊
王丝雨
廖炳友
GE Yu-bo;ZHOU Zhong-kui;FANG Xiao-qi;SUN Zhan-xue;WANG Ting-jian;WANG Shi-jun;WANG Si-yu;LIAO Bing-you(State Key Laboratory of Nuclear Resources and Environment,East China University of Technology,Nanchang 330013,China;School of Water Resources and Environmental Engineering,East China University of Technology,Nanchang 330013,China;No.290Institute of Nuclear Industry,Shaoguan 512000,Guangdong,China)
出处
《有色金属（冶炼部分）》
CAS
北大核心
2021年第1期48-55,共8页
Nonferrous Metals（Extractive Metallurgy)
基金
国家自然科学基金资助项目(41772266)
国防基础科研计划项目(JCKY2019401D003)。
关键词
氧化亚铁硫杆菌
黄铁矿
低硫铀矿
强化浸出
Acidithiobacillus ferrooxidans
pyrite
low-sulfur uranium ore
enhanced leaching
