Modeling and Optimization of Multistage Electrodialysis Systems for Water Desalination

被引：1

作者：

Vargas, Adriana N. ^{[1
]}

Guardani, Roberto ^{[1
]}

机构：

[1] Univ Sao Paulo, Dept Chem Engn, BR-05508900 Sao Paulo, Brazil

来源：

ICHEAP-10: 10TH INTERNATIONAL CONFERENCE ON CHEMICAL AND PROCESS ENGINEERING, PTS 1-3 | 2011年 / 24卷

关键词：

D O I：

10.3303/CET1124133

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

An optimization study was carried out for an electrodialysis system (ED) operating continuously in stages, based on material balances for the species in each single cell of a generic stage, applied to the separation of NaCl, KCl or Na(2)SO(4) from water solutions. The effect of process variables affecting the investment and operating costs, expressed as membrane and electric energy costs, respectively, is considered. The results indicate that Na(2)SO(4) removal is more expensive than NaCl or KCl due to the divalent ion effect. It is possible to find optimal solutions for minimizing total costs under different scenarios by changing design and operating variables such as cell thickness and recycle ratio.

引用

页码：793 / 798

页数：6

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