首页 | 本学科首页   官方微博 | 高级检索  
     

微生物技术在低品位铁矿中的应用研究
引用本文:程蓉,舒荣波.微生物技术在低品位铁矿中的应用研究[J].矿产综合利用,2015(4).
作者姓名:程蓉  舒荣波
作者单位:中国地质科学院矿产综合利用研究所 中国地质调查局金属矿产资源综合利用技术研究中心 国土资源部钒钛磁铁矿综合利用重点实验室;中国地质科学院矿产综合利用研究所 中国地质调查局金属矿产资源综合利用技术研究中心 国土资源部钒钛磁铁矿综合利用重点实验室
摘    要:生物浮选技术(Bioflotation)具有效果好、工艺简单、生产成本低和不污染环境等优点。本研究以新分离的一株芽孢杆菌(Bacillus sp.)为选矿微生物,在研究细菌生长特性和吸附性能基础上,利用多种铁矿石开展浮选试验,为开发新型微生物浮选药剂提供理论基础。结果表明,该菌可吸附于赤铁矿表面,导致矿物形成疏水的团聚物而絮凝,而石英体系中却未观察到明显变化,这一现象是由该菌和不同矿物的表面Zeta电位决定的。生物吸附实验进一步证明该菌对不同矿物的吸附作用不同,赤铁矿对该菌的吸附作用明显大于石英矿物,从显微图中可以看出,该菌大量聚集于赤铁矿周围形成强烈吸附,而在石英体系中,并未观察到明显吸附现象。生物浮选实验表明该菌对四种铁矿都有一定捕收作用,但对鲕状赤铁矿和褐铁矿的效果较小,而对赤铁矿具有较好的生物浮选作用,由此可见,该菌在以石英为主要脉石的赤铁矿中可用作生物捕收剂使用。

关 键 词:生物浮选    芽孢杆菌属    生物吸附    赤铁矿    石英

The research of biological technology on low-grade iron ore
Cheng Rong and Shu Rongbo.The research of biological technology on low-grade iron ore[J].Multipurpose Utilization of Mineral Resources,2015(4).
Authors:Cheng Rong and Shu Rongbo
Affiliation:Institute of Multipurpose Utilization of Mineral Resources,CAGS,, Research Center of Multipurpose Utilization of Metal Mineral Resources of China Geological Survey, Key Laboratory of Multipurpose Utilization of Vanadium-titanium Magnetite of Ministry of Land and Resources;Institute of Multipurpose Utilization of Mineral Resources,CAGS,, Research Center of Multipurpose Utilization of Metal Mineral Resources of China Geological Survey, Key Laboratory of Multipurpose Utilization of Vanadium-titanium Magnetite of Ministry of Land and Resources
Abstract:Bioflotation is low-cost and has little environmental pollution, which is a high-efficient technology. Bacillus sp. as a collector for iron ore was studied. And the realization of the research target will provide the scientific basis and theoretical support for the development of new biological reagent. The results showed that Bacillus sp. had much stronger flocculating ability to hematite than to quartz because the different ores had different Zeta potential. Meanwhile, the research indicated that the selective adsorption of Bacillus sp. on the surfaces of hematite was more obvious than quartz. From the comparative tests of flotation, it is shown that Bacillus sp. had a stronger collecting ability for hematite than other iron ores. Therefore, the bacteria could be used as the biological collector for hematite in the separation of hematite from quartz.
Keywords:Bioflotation  Bacillus sp    Biological adsorption  Hematite  Quartz
点击此处可从《矿产综合利用》浏览原始摘要信息
点击此处可从《矿产综合利用》下载全文
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号