论文部分内容阅读
在多粘杆菌存在时 ,用微生物诱导浮选和絮凝法可从方解石和石英中选择性分离黄铁矿。评估了细菌细胞在黄铁矿、方解石和石英表面上的吸附行为。用Zeta电位测量研究了与细菌细胞作用后的不同矿物表面化学性质变化与pH的关系。试验结果表明 ,在矿物与多粘杆菌细胞或由细菌代谢物分离出的生物蛋白质作用后 ,用选择性浮选或絮凝法可从石英或方解石中分离出黄铁矿。本研究所制定的方法可通过浮选对尾矿脱硫 ,这对环境控制具有很大的意义
In the presence of polymyxa, pyrite can be selectively separated from calcite and quartz using microbial induced flotation and flocculation. Bacterial cells were evaluated for their adsorption behavior on pyrite, calcite and quartz surfaces. Zeta potential measurements were used to study the relationship between chemical changes in the surface of different minerals and pH after bacterial cell action. The experimental results show that pyrite can be separated from quartz or calcite by selective flotation or flocculation after the mineral interacts with polymyxa cells or biological proteins separated by bacterial metabolites. The method developed in this study can desulfurize the tailings by flotation, which has great significance for environmental control