Effect of MPEC technology on the leaching of copper from tailings by Aspergillus niger
In order to leach copper from its mill tailings with high efficiency ,microparticle-enhanced culti-vation technology was applied to regulate the morphology of Aspergillus niger.The effects of TiSiO4 microp-article concentrations on the pellet diameter of Aspergillus niger and leaching of copper from its mill tallings by using fermentation broths of Aspergillus niger were investigated .The results demonstrated that the addition of TiSiO 4 microparticles to medium had a significant influence on the pellet diameter of Asper-gillus niger and the leaching degree of copper by using fermentation broths of A.niger.For the TiSiO4 mi-croparticles concentration of 25 g/L,the pellet diameter of Aspergillus niger is 0.65 mm and copper ex-traction reached 84.5%.
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万方数据
维普
