含砷废渣处理现状及对策

伴随着优质矿逐渐被消耗,复杂含砷矿逐渐被开采出来,含砷废渣的产量不断增加,而砷及含砷化合物毒性很大,因此如何有效的处理含砷废渣使其无害化变的非常迫切。介绍了砷的危害,含砷废渣的来源,综述了含砷废渣处理方法的现状及存在的问题。目前,处理含砷废渣含砷废渣的方法主要有硫酸铜置换法、硫酸铁法和碱浸法等资源化处理,以及水泥固化、钙盐稳定化等固化稳定化处理。但这些方法都存在相应的不足,为了能有效的解决含砷废渣的问题,提出了臭葱石稳定化是处理含砷废渣的对策。

The present situation and the countermeasure of the processing of arsenic residues

With the gradual depletion of high quality ore, complicated ore containing arsenic was gradually being mined, and the production of arsenic residues increased continuously. As the toxicity of arsenic and arsenic compounds are quite strong, so how to effectively deal with arsenic residues to make it harmless become very urgent. TheSdetrimentSofSarsenic and the origin of arsenic-containing wastes are introduced, the present situation and existing problems of the processing is reviewed. Currently, major treatment methods forSthe resource utilization of arsenic residues include copper sulfate cementation process , Sferric sulfate leaching process, alkali leaching process etc. and the solidification-stabilization of arsenic residues include cementS solidification process,Scalcium salt stabilization process etc..But these methods have respective shortcomings, in order to effectively solve the problem of arsenic residues, stabilization arsenic by forming scorodite is the countermeasure of treatment arsenic residues.