使用磁性纳米颗粒检测超滤膜组件完整性实例  

Case Analysis on Ultrafiltration Membrane Module Integrity Tested by Magnetic Nanoparticles

作　　者：王松林[1] 明丹 芦秀青[1] 周永莉[1] 张亚峰[1] 

机构地区：[1]华中科技大学环境科学与工程学院,湖北武汉430074 [2]武汉市政工程设计研究院有限责任公司,湖北武汉430023

出　　处：《中国给水排水》2014年第9期52-56,共5页China Water & Wastewater

基　　金：国家自然科学基金资助项目(51108202);中央高校基本科研业务费专项资金资助项目(2011QN118);湖北省自然科学基金资助项目(2008CDZ031);华中科技大学大学生创新训练项目(12B102)

摘　　要：将已经使用54个月的自来水厂超滤膜组件不同区域的膜丝,重新组装成18个小型超滤膜组件,采用磁性纳米颗粒为标记物,通过测定超滤膜组件透过液的磁化率,判别各膜组件的完整性。结果表明,通过测定透过液磁化率指标,能够有效分辨超滤膜组件的完整性,简易方便,能够达到压力衰减测试法同样的检出精度。Eighteen small modules were made with hollow-fibers taken from different parts of a industrial module which has produced drinking water for 54 months. Using magnetic nanoparticle as markers, the integrity of these modules was assessed by analyzing magnetic susceptibility of permeate samples. The study demonstrated that the integrity of uhrafihration membranes could be monitored by measuring the magnetic susceptibility of permeate from an uhrafihration membrane module, and this method had the same detection accuracy as pressure decay test method.

关 键 词：磁性纳米颗粒 磁化率 超滤膜组件 完整性测试 

分 类 号：TU991.2[建筑科学—市政工程]