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投稿时间：2020-09-12 修订日期：2020-09-16 录用日期：2020-09-21 网络发布日期：2020-12-19
投稿时间：2020-09-12 修订日期：2020-09-16 录用日期：2020-09-21 网络发布日期：2020-12-19
中文摘要: 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%；SEM结果表明，添加黄铁矿可降低微区黄钾铁矾等沉淀形成。
Abstract: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 Eh value rises severely by adding pyrite. Compared with blank control group, leaching rate of uranium in pyrite system rises obviously by 1.73%—5.53%. SEM analysis results show that jarosite precipitation on surface of uranium ore is obviously reduced by adding pyrite.
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基金项目:国家自然科学基金资助项目(41662024)
引用文本：
葛玉波,周仲魁,方晓骐,孙占学,王廷健,王世俊,王丝雨,廖炳友.不同类型黄铁矿对微生物浸铀行为的影响[J].有色金属（冶炼部分）,2021(1):48-55.
GE Yu-bo,ZHOU Zhong-kui,FANG Xiao-qi,SUN Zhan-xue,WANG Ting-jian,WANG Shi-jun,WANG Si-yu,LIAO Bing-you.Effect of different types of pyrite on uranium bioleaching behavior[J].Nonferrous Metals (Extractive Metallurgy),2021(1):48-55.
葛玉波,周仲魁,方晓骐,孙占学,王廷健,王世俊,王丝雨,廖炳友.不同类型黄铁矿对微生物浸铀行为的影响[J].有色金属（冶炼部分）,2021(1):48-55.
GE Yu-bo,ZHOU Zhong-kui,FANG Xiao-qi,SUN Zhan-xue,WANG Ting-jian,WANG Shi-jun,WANG Si-yu,LIAO Bing-you.Effect of different types of pyrite on uranium bioleaching behavior[J].Nonferrous Metals (Extractive Metallurgy),2021(1):48-55.
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