首页> 外文会议>AIChE Annual Meeting >Connectivity between NOM diffusivity and effective MAVCO of NF/UF membrane
【24h】

Connectivity between NOM diffusivity and effective MAVCO of NF/UF membrane

机译:NF / UF膜的NOM扩散率和有效Mavco之间的连接

获取原文

摘要

Concepts for the effective MWCO of tight-UF membranes, and apparent diffusion coefficients for NOM, were introduced to determine the mechanisms influencing NOM removal and to explain the different behaviors of NOM removal by different UF membranes with different hydrophobicities, permeability, and surface charges. Colloidal NOM (COM) and non-colloidal hydrophobic NOM (NCD HP) constituents were chosen for the evaluation of two different UF membranes. The apparent diffusion coefficients of NOM, as determined from NOM diffusion experiments, using a diffusion cell equipped with a regenerated cellulose membrane, were much lower than those calculated by the Stokes Einstein relation. The diffusion coefficient of NOM is to be used to predict and explain NOM transport behaviors in tight-UF membranes, in conjunction with the size exclusion and electrostatic repulsion mechanisms as well as a hydraulic condition (J0/k).
机译:引入了近UF膜的有效MWCO的概念,以及NOM的表观扩散系数,以确定影响NOM移除的机制,并用不同的UF膜用不同疏水性,渗透性和表面电荷解释NOM移除的不同行为。选择胶体NOM(COM)和非胶体疏水性NOM(NCD HP)成分用于评估两种不同的UF膜。从配备有再生纤维素膜的漫射电池的NOM扩散实验中确定的NOM的表观扩散系数远低于由斯托克斯爱因斯坦关系计算的那些。 NOM的扩散系数用于预测和解释紧固膜中的NOM运输行为,结合尺寸排阻和静电排斥机构以及液压条件(J0 / k)。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号