【摘要】 金属离子已经成为水体的主要污染源之一,对含低浓度金属离子废水的处理方法包括化学沉淀法、离子交换法、吸附法、膜处理法等进行了综述,并对各种方法的优缺点进行了综合比较。提出利用离子交换法处理低浓度金属离子废水易于实现工业化和自动化,是将来的发展趋势,其中高性能树脂的合成以及离子交换设备研究是以后的两大研究方向。最后对处理低浓度金属废水方法存在的问题及发展研究方向进行了展望。更多还原

【Abstract】 Metal ions have been one of the main pollutive sources. The treatment methods, such as chemical precipitation, ion exchange, adsorption, biological treatment, and membrane separation for treating wastewater with low concentrated metal ions are summarized. The advantages and disadvantages of various methods are compared comprehensively. It is pointed out that using ion exchange for treating wastewater with low concentrated mental ions is prone to realizing industrialization and automation,which is the trend of the future development. The synthetic of high performance chelating resin and the study of ion exchange equipment will be two research topics in the future. At the end, the current problems and the research direction of future development are prospected.更多还原