水处理滤料润湿性能测定方法的比较研究  

Comparison of methods of measuring wettability of water treatment filter material

作　　者：沈冬梅[1] 余才锐[1] 肖举强[2] 

机构地区：[1]皖西学院城市建设与环境系,安徽六安237012 [2]兰州交通大学环境与市政工程学院,兰州730070

出　　处：《工业用水与废水》2009年第5期64-67,共4页Industrial Water & Wastewater

摘　　要：根据Washburn方程,采用高度法和压力法测量滤料接触角,引入亲油亲水比(RLH)的概念,以正辛醇和去离子水作参比液,得出了25℃下核桃壳和石英砂滤料的亲水亲油比值。结果表明,压力法更适合滤料接触角测量,核桃壳颗粒对于非极性液体的润湿性较好,石英砂对于极性液体的润湿性较好,本研究为含油废水处理滤料的润湿性能改进提供一种新思路。Based on the Washburn equation, using height method and pressure method to measure the contact angle of the filter material, introducing the concept of hydrophohic -hydrophilic ratio （RLH）, the hydrophobichydrophilic ratios of walnut shell and quartz sand at 25 ℃ was obtained with n-oetanol and deionized water as the reference liquid. The results showed that, pressure method was more suitable for the measure of filter material contact angle; for non-polar liquid, the wettability of walnut shell granules was better, however, for polar liquid, the wettability of quartz sand was better. The said study provided a new train of thought to improve wettahility of the filter material for oil-containing wastewater treatment.

关 键 词：Washburn方程 动态法 亲水亲油比 滤料润湿性 

分 类 号：TU991.24[建筑科学—市政工程]