【摘要】 概述了膜污染的类型与成因、化学清洗机理及清洗剂的类型,从清洗效果、清洗成本、环境影响3方面,利用层次分析法构建了膜化学清洗综合效应的评价方法;并以某生活污水处理系统的微滤膜为例,进行了两个方案的实证研究,结果表明,方案2要优于方案1。该评价方法可操作性强,评价结果能为选择科学合理的膜化学清洗方案提供依据。更多还原

【Abstract】 The type and cause of membrane fouling were summarized in this paper,mechanism and cleaning agents species of chemical cleaning were also introduced,an assessment method of chemical cleaning comprehensive effects was proposed by analytic hierarchies process,the method involved effects、costs and environmental impact of chemical cleaning;then a microfiltration membrane system was taken for example which was used for sewage treatment,empirical research of two options was carried out,the results showed that,Option Ⅱ was better than Option Ⅰ.The method performed good operationality and the assessment results can be used for opting reasonable membrane chemical cleaning option.更多还原