Concentration Polarization in Reverse Osmosis Membranes: Effect of Membrane Splitting

被引：6
|
作者：
Reverberi, Andrea P. [1 ]
Fabiano, Bruno [2 ]
Cerrato, Cristiano [3 ]
Dovi, Vincenzo G. [1 ]
机构：
[1] DCCI Dept Chem & Ind Chem, Via Dodecaneso 31, I-16146 Genoa, Italy
[2] DICCA Dept Civil Chem & Environm Engn, Chem Engn Sect, I-16145 Genoa, Italy
[3] DIMSET Dept Machinery Energy Syst & Transports, Genoa, Italy
来源：
PRES 2014, 17TH CONFERENCE ON PROCESS INTEGRATION, MODELLING AND OPTIMISATION FOR ENERGY SAVING AND POLLUTION REDUCTION, PTS 1-3 | 2014年 / 39卷
关键词：
UNSTEADY HYDRODYNAMICS; PERMEATE FLUX; DESALINATION; MODEL;
D O I：
10.3303/CET1439128
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
We propose a simulation study in order to evaluate the effects of concentration polarization damping by splitting a single spiral-wound membrane module in two units connected in series inside the same shell. The reverse osmosis process in each unit is described by the advection-diffusion equation in two dimensions which is solved by a finite difference technique. Several feed regimes and operating conditions are investigated and their influence on the permeate flow rate is assessed for a single and double cell assembly. Finally, optimal operating maps are traced for different configurations of feed flow rate and pressure.
引用
收藏
页码：763 / +
页数：2
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