絮凝剂在隧道施工废水处理中的应用研究

摘要

This paper elaborates types of flocculants, compares and analyzes status quo of application, advantages and disadvantages of various flocculants, selects three flocculants to cany out the test for treatment of waste water from construction of tunnels, and makes comparatively analysis for the results of treatment. The results show that the "" polymeric aluminium - positive ion organic polymer" flocculant has good destabilizing effect and can effectively eliminate petroleum matters while eliminating floating substances. Therefore, development of nontoxic and high - efficiency flocculants vulnerable to degradation and without secondary pollution is the tendency of research and development of flocculants in the future.%阐述絮凝剂种类,比较分析各种絮凝剂的应用现状及优缺点,选取3种絮凝剂进行隧道施工废水处理试验,并对处理效果进行比较分析.结果表明,“聚合铝—阳离子有机高分子”絮凝剂脱稳效果好,在去除悬浮物质的同时,也可有效去除石油类物质.发展无毒高效、易于降解、不存在2次污染的絮凝剂将是未来絮凝剂研究发展的趋势.