煤化工高盐废水纳滤膜长周期分盐性能及衰减性研究  

Study on performance of sulfate and chloride ion separation and attenuation of nano filtration membrane of long term operation for coal-chemical high salinity wastewater

作　　者：厉阳 LI Yang(Sinopec Engineering Incorporation,Beijing 10010l,China)

机构地区：[1]中国石化工程建设有限公司,北京100101

出　　处：《给水排水》2023年第5期56-61,共6页Water & Wastewater Engineering

摘　　要：中安煤化项目污水处理场纳滤膜近3年分析化验数据表明,纳滤膜工业化应用有良好的分盐效果,3年硫酸根平均截留率96.2%,浓水侧SO_(4)^(2-)/Cl-平均值为12.7,产水侧Cl-/SO_(4)^(2-)平均值为13.6,氯离子最大负截留率28%。纳滤膜分盐性能衰减主要发生在产水侧。According to nearly three years analysis data of Zhongan Coal-chemical WWT Nano-filtration module,the performance of sulfate and chloride separation for Nano-filtration can fulfil the requirements of industrial applications.There years average data for sulfate rejection rate is 96.2%,SO■/Cl~-on rejection side is 12.7,Cl~-/SO■on permeate side is 13.6%,max minus rejection rate of chloride is-28%.The decline of separation performance for Nano-filtration mainly appears in permeate side.

关 键 词：纳滤分盐 硫酸根截留率 负截留 纳滤膜衰减 盐硝比 

分 类 号：X703[环境科学与工程—环境工程]