反渗透膜硫酸钙的污染及清洗

Pollution and cleaning of reverse osmosis membrane calcium sulfate

随着膜元件的普及,膜元件的维护和清洗越来越重要,反渗透膜的污染主要有污堵、结垢和氧化等。结垢成分中的硫酸钙垢是比较难清洗的,但必须及时去除结垢物质,使系统恢复正常生产。本文结合当前我国反渗透膜元件结硫酸钙垢的特性,重点论述了硫酸钙垢的形成和清洗,并结合企业运行实际,对膜硫酸钙垢的可恢复性,提出了一系列对策。

With the popularization of membrane components, the maintenance and cleaning of membrane components are becoming more and more important. The fouling of reverse osmosis membrane mainly includes fouling, scaling and oxidation. Calcium sulfate scale is difficult to clean, but it must be removed in time to make the system return to normal production. In this paper, combined with the characteristics of China＇s current reverse osmosis membrane element with calcium sulfate scale, mainly discusses the formation and cleaning of the calcium sulfate scale, combined with the actual operation of the enterprise, the membrane calcium sulfate scale recovery, put forward a series of countermeasures.