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

页码：763 / +

页数：2

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