水溶性聚合物络合超滤技术处理重金属废水进展

Progress in the application of water soluble polymer complexing ultrafiltration to the treatment of heavy metal wastewater

分析了水溶性聚合物络合超滤技术去除重金属的机理,总结了分离重金属离子过程的影响因素,如pH、金属离子与聚合物浓度比和外加盐。综述了该技术在金属离子选择性分离中的研究进展以及聚合物再生时使用的酸化法和电解法的研究进展。最后,着重对限制该技术工业化的膜污染问题进行了综述,并展望了该技术的发展前景。[

The mechanism of water soluble polymer complexing ultrafiltration for removing heavy metals is analyzed,and the influencing factors in the separation process,such as pH,concentration ratio of metal ions and polymer, and added salt are summarized. In addition, the research progress in the technology of selective separation and that of polymer regeneration by acidification and electrolysis are reviewed. At the end, the membrane fouling problem, which is the restrictive factor hindering the industrialization of this technology, is emphatically overviewed, and the developing foreground is predicted.