含卤废水中卤盐回收研究进展

Progress on the Recovery of Haloid Salt from Halogen-ContainingWastewater

含卤废水中卤盐回收方法一般包括预处理、浓缩结晶环节,选择合适的回收处理方法是卤盐高效回收的关键。结合实际案例,从含卤废水的预处理和浓缩结晶方面展开,总结归纳了从含卤废水中将卤盐资源化的预处理、浓缩、结晶等技术,分析了技术的适用条件、优缺点及应用前景,为含卤废水高效经济回收卤盐资源技术遴选和优化提供支撑。

Generally,the recovery methods of halide salt in halogen-containing wastewater include pretreatment and concentration crystallization.It is the key to the efficient recovery of halide salt with an appropriate recovery method.In this paper,the aspects of pretreatment and enrichment crystallization of halogen-containing wastewater,pretreatment,concentration and crystallization technologies of the recovery of halide salt were summarized.The applicable conditions,advantages,disadvantages and the application prospect of technologies were analyzed,which provided support for the efficient and economic recovery of halide salt from halogen-containing wastewater and the selection and optimization of resource technology.