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采用对钼有一定耐受性的嗜热金属硫叶菌结合膜反应器浸出镍钼矿。结果表明:由于膜生物反应器(MBR)中膜的过滤作用,使浸出液中的钼浓度保持在该菌可以耐受的范围内,从而实现细菌对矿物相对高效的浸出。在矿浆浓度100mg/L、通气量1.0L/min下,将MBR浸出液中钼被控制在不同浓度,镍、钼的浸出率各不相同。当MBR浸出液中钼的浓度不超过395mg/L时,镍和钼的浸出率达到79.57%和56.23%;而在相同条件下的柱浸,镍、钼浸出率为75.59%和54.33%,低于相同条件下MBR浸出。
Nickel-molybdenum ore was leached with thermophilic metallobacter with membrane reactors that had some tolerance to molybdenum. The results show that due to the membrane filtration in the membrane bioreactor (MBR), the concentration of molybdenum in the leachate is kept within the tolerable range of the bacterium so as to achieve relatively efficient leaching of bacteria by the bacteria. In the slurry concentration of 100mg / L, aeration 1.0L / min, the MBR leaching solution was controlled at different concentrations of molybdenum, nickel, molybdenum leaching rates vary. The leaching rates of nickel and molybdenum reached 79.57% and 56.23% when the concentration of molybdenum in the MBR leachate did not exceed 395mg / L, while the leaching rates of nickel, nickel and molybdenum were 75.59% and 54.33% MBR leaching under the same conditions.