水厂膜处理过程中阻垢剂的典型种类及应用

A Review of Typical Types and Application of Antiscalants in Membrane Treatment of Waterworks

膜结垢会降低膜的渗透通量,影响膜的使用寿命,是水厂膜处理过程的重要限制因素之一。投加阻垢剂是阻止膜结垢的一种方便、有效的方法,分别从阻垢机理、阻垢剂的种类和阻垢剂的应用三方面介绍了水厂膜处理过程中含磷阻垢剂、聚合物阻垢剂和环保阻垢剂的特点及合成方法,阐述了阻垢剂在水厂膜处理过程中的应用形式和阻垢性能。在此基础上,总结了阻垢剂应用过程中仍存在的问题,并对阻垢剂的未来发展和应用进行了展望。

Membrane scaling is one of the important limitations of membrane treatment process in waterworks,resulting in the decline of membrane flux and the shortening of membrane lifespan.The addition of antiscalants is a convenient and effective method to prevent membrane scaling.The scale inhibition mechanism,the various types of antiscalants available and their respective applications in membrane treatment processes are reviewed respectively.The structures,characteristics and synthesis methods of phosphorus antiscalants,polymeric antiscalants and environment‑friendly antiscalants are also summarized.It further elucidates the application forms and scale inhibition performance of these antiscalants in membrane treatment processes within waterworks.Additionally,it identifies existing challenges in the application of antiscalants and offers prospects for their future development and utilization.