印染废水硫酸钠资源化回收工程应用研究  

Research on Application of Resource Recovery Engineering of Sodium Sulfate in Printing and Dyeing Wastewater

作　　者：吴正雷 罗小勇 庄力 王磊 孙桂花 金同发 WU Zhenglei;LUO Xiaoyong;ZHUANG Li;WANG Lei;SUN Guihua;JIN Tongfa(Jiangsu Jiuwu Hi-Tech Co.,Ltd.,Nanjing 21180&China)

机构地区：[1]江苏久吾高科技股份有限公司,南京211808

出　　处：《中国资源综合利用》2021年第12期194-197,共4页China Resources Comprehensive Utilization

摘　　要：为了达到废水回用与硫酸钠盐资源化的目的,某印染企业采用超滤+离子交换+反渗透1+纳滤+反渗透2+冷冻结晶的组合工艺处理生化尾水。本研究分析了该工程的设计参数、运行效果及运行成本,以指导其他类似项目。运行结果表明,膜系统的产水完全符合企业回用要求,产水回用率大于95%,芒硝品质满足资源化要求,产品盐纯度大于97%。In order to achieve the purpose of wastewater reuse and sodium sulfate resource recycling,a printing and dyeing company uses a combined process of ultrafiltration + ion exchange + reverse osmosis 1 + nanofiltration + reverse osmosis 2 + frozen crystallization to treat biochemical tail water.This research analyzes the design parameters,operating effects and operating costs of the project,so as to guide other similar projects.The operation results show that the water produced by the membrane system fully meets the requirements of enterprise reuse,the reuse rate of produced water is greater than 95%,the quality of Glauber’s salt meets the requirements for recycling,and the purity of the product salt is greater than 97%.

关 键 词：印染废水 离子交换 膜集成技术 冷冻结晶 资源化 

分 类 号：X791[环境科学与工程—环境工程]