There are two commonlyused schemes in the boiler makeup water treatment system. One is featured by ultrafiltration,reverse osmosis and EDI, the other is characterized by ultrafiltration, reverse osmosis and ion ex change desalination. This essay draws a comparison between the two from both economical and technological per spectives and proposes the integrated membrane system be used in specific engineering conditions.%本文对锅炉补给水处理系统常见的＂超滤、反渗透、电除盐＂和＂超滤、反渗透、离子交换除盐＂两个方案进行技术经济比较;在特定工程条件下,推荐锅炉补给水处理系统采用全膜法处理工艺。
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