Method for promoting chalcopyrite microbiological leaching by using garnet

The invention discloses a method for promoting chalcopyrite microbiological leaching through garnet. The method comprises the steps that the chalcopyrite is added into a microbiological leaching system, culture and domestication of microorganisms and biological leaching of the chalcopyrite are conducted, garnet is added in the biological leaching process to serve as a biological leaching accelerant, and a copper-containing solution and biological leaching residues are obtained. According to the present invention, by using the dissolution characteristic, the adsorption iron removal principle and the microorganism growth promotion characteristic, the solution potential is effectively regulated in the biological leaching range, and the microorganism growth is accelerated to enter the logarithmic phase so as to improve the chalcopyrite microorganism leaching efficiency, and the garnet is adopted as the leaching accelerator, such that the price is low, and the source is wide; the using method is simple, easy to op