在有多黏芽胞杆菌细胞和代谢产物存在的条件下,实现了从脉石矿物(石英和方解石)中选择性除去黄铁矿和黄铜矿。吸附试验研究发现细菌细胞对某种矿物表面具有选择性的亲合力。通过测定Zeta电位随时间和pH值而变化的情况,确定了在相互作用后细菌细胞和矿物表面化学性质的变化。在与细菌细胞和微生物菌相互作用以后,通过矿物的絮凝和浮选,就能达到使黄铁矿和黄铜矿有效地与石英和方解石分离,从环保控制的观点也就达到了使矿山尾矿脱硫的目的 The selective removal of pyrite and chalcopyrite from gangue minerals (quartz and calcite) is achieved in the presence of polymyxa cells and metabolites. Adsorption test studies have found that bacterial cells have a selective affinity for a mineral surface. By measuring the change of Zeta potential with time and pH, changes in the chemical properties of bacterial cells and mineral surfaces after the interaction were determined. After interaction with bacterial cells and microbial cells, the pyrite and chalcopyrite can be effectively separated from quartz and calcite by the flocculation and flotation of minerals, from the environmental control point of view, Mine desulfurization purposes