许家晟 牛洪斌 任杰 王磊 蒲靓春 陈爽



摘要:淡水资源短缺问题不仅是我国还是全世界密切关注的问题,由于我国正处于飞速发展的重要阶段,水资源不足严重影响着经济的发展。为了解决水资源短缺的问题,近些年中水回用技术备受关注。本课题采用“浸没式超滤+反渗透”组合的双膜法对污水处理厂出厂水进行深度处理,不仅可以使回用水用于农业灌溉、绿化灌溉、回灌地下水、工业用水等,甚至还可以达到居民生活用水的标准,极大的解决了我国所面临水资源紧缺和生态环境不断恶化的问题。
关键词:超滤;反渗透;中水回用;污水深度处理
中图分类号:X52 文献标识码:A 文章编号:2095-672X(2019)06-00-02
DOI:10.16647/j.cnki.cn15-1369/X.2019.06.047
nly a matter of close concern to China but also to the world.Because of China is in an important stage of rapid development, the lack of water resources seriously affects the economic development. In order to solve the problem of water shortage, wastewater reuse technology has attracted much attention in recent years. In this project, the double-membrane method of “immersed ultrafiltration + reverse osmosis” is used to perform advanced treatment of the water from the sewage treatment plant. Not only can reuse water be used for agricultural irrigation, green irrigation, recharged groundwater, industrial water and so on. but also reach the standard of residential water use. Wastewater reuse greatly solved the problem that our country faces the shortage of water resources and the deteriorating ecological environment.
Key words:Ultrafiltration;Reclaimed wastewater reuse;Advanced treatment of sewage;Reverse osmosis
水是生命之源,我們的一切生产和生活都离不开水。虽然我国地大物博水资源总量丰富,但由于我国人口众多、工业发展迅速以及污染问题的存在,导致我国人均可用水资源严重不足,再加上一些地区受地质条件及环境因素的影响,使该地区水质较差应用局限性大。在水资源如此有限的情况下,有效缓解水资源紧张的措施越来越受到重视。
中水回用,就是将污水或废水集中处理后,再次进行深度处理回用于生产和生活。其回用水不仅可以用于农业灌溉、绿化灌溉、回灌地下水、工业用水等,甚至可以进入水库作为人类的生活用水[1]。使用工艺包括电渗析、离子交换、超滤、反渗透及其组合工艺等。中水回用不仅是节约水资源的有效措施,它还可以减少废水的排放量,减轻环境污染和水体污染,并且能有效缓解城市排水管道的超负荷现象,具有广阔的发展前景。……