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Study on preferential flow in dump leaching of low-grade ores
Abstract Preferential flow in dump leaching of low-grade ores was investigated in this paper. The production of the dump leaching plant at Dexing Copper Mining in China was significantly influencedExpand
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Technological assessment of a mining-waste dump at the Dexing copper mine, China, for possible conversion to an in situ bioleaching operation.
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 basedExpand
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The effect of solid components on the rheological and mechanical properties of cemented paste backfill
Abstract An experimental study is conducted to investigate the effect of solid components on the rheological and mechanical properties of cemented paste backfill (CPB). Based on the pasteExpand
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Copper Bioleaching in China: Review and Prospect
The commercial application of copper bioleaching, an environmentally-friendly approach for low-grade and secondary mineral resources recycling, has increased worldwide since the 2000s. As the world’sExpand
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The effect of preferential flow on extraction and surface morphology of copper sulphides during heap leaching
Abstract Despite the commercial achievement of heap leaching of some copper, gold, zinc, and nickel minerals, there is limited comprehension of the flow pattern within the heap. Several fieldExpand
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Coupled effects of cement type and water quality on the properties of cemented paste backfill
Abstract The significant coagulation delay and poor strength performance of cemented paste backfill (CPB) are two of the biggest challenges faced by the backfilling system in Chihong mine. TheseExpand
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Reduction of Nitrate to Ammonium in Selected Paddy Soils of China *1
Three paddy soils were examined for their capacities of dissimilatory reduction of nitrate to ammonium (DRNA). 15 N labelled KNO 3 was added at the rate of 100 mg N kg -1 . Either glucose or riceExpand
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Effects of bioleaching on the mechanical and chemical properties of waste rocks
Bioleaching processes cause dramatic changes in the mechanical and chemical properties of waste rocks, and play an important role in metal recovery and dump stability. This study focused on theExpand
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Bacterial-mediated recovery of copper from low-grade copper sulphide using acid-processed rice straw.
Bacteria community and copper recovery in presence of acid-processed rice straw (ARW) were explored during low-grade copper sulphide bioleaching. The results indicated a strongly promoting responseExpand
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Copper recycle from sulfide tailings using combined leaching of ammonia solution and alkaline bacteria
Abstract The migration of heavy metals and loss of valuable resources have become indispensable limitations to the developments of metal mines because of failing to remediate tailings ponds.Expand
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