Technological assessment of a mining-waste dump at the Dexing copper mine,China, for possible conversion to an in situ bioleaching operation |
| |
| Authors: | Aixiang Wu Shenghua Yin Hongjiang Wang Wenqin Qin Guanzhou Qiu |
| |
| Institution: | 1. School of Civil and Environment Engineering, University of Science and Technology Beijing, Beijing 100083, China;2. School of Mechanical Engineering, University of Western Australia, Perth WA 6009, Australia;3. School of Mineral Processing and Bioengineering, Central South University, Changsha 410083, China;1. Key Laboratory of the Ministry of Education of China for High-Efficient Mining and Safety of Metal Mines, University of Science and Technology Beijing, Beijing 100083, China;2. School of Civil and Environment Engineering, University of Science and Technology Beijing, Beijing 100083, China;1. School of Mines, Key Laboratory of Deep Coal Resource Mining, Ministry of Education of China, China University of Mining & Technology, Xuzhou 221116, China;2. College of Geology and Mineral Engineering, Xinjiang University, Urumchi 830046, China;1. School of Mining, College of Engineering, University of Tehran, Tehran 1439957131, Iran;2. Sarcheshmeh Copper Complex, Research and Development Centre, Rafsanjan 7731643181, Iran;1. National Engineering Laboratory of Biohydrometallurgy, General Research Institute for Nonferrous Metals, Beijing 100088, China;2. Zijin Mining Group Co., Ltd, Shanghang 364200, China;3. General Research Institute for Nonferrous Metals, Beijing 100088, China;4. Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China |
| |
| Abstract: | In order to extract copper metal from the waste dump of Dexing copper mine and resolve the environmental problems caused by acidic water and heavy metals, a dump bioleaching plant was designed based on a series of experimental investigations. The investigation shown that the low-grade of the dump, refractoriness of chalcopyrite, leakage of pad, small Acidithiobacillus population and low dump permeability are the main factors that contribute to the challenges faced by the plant. Stability of the high and steep slope of the dump is the other hidden danger to which much attention is not paid. To evaluate the potential unstability of the dump, the leaching process, ore surface erosion, particle size, chemical elements and mechanical properties of the waste rock in DCM were investigated through experiment in this paper. |
| |
| Keywords: | |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
