Demineralization of geothermal water reverse osmosis (RO) permeate by electrodeionization (EDI) with layered bed configuration

被引：27

作者：

Arar, Ozgur ^{[1
]}

Yuksel, Umran ^{[1
]}

Kabay, Nalan ^{[2
]}

Yuksel, Mithat ^{[2
]}

机构：

[1] Ege Univ, Fac Sci, Dept Chem, TR-35100 Izmir, Turkey

[2] Ege Univ, Fac Engn, Dept Chem Engn, TR-35100 Izmir, Turkey

来源：

DESALINATION | 2013年 / 317卷

关键词：

Electrodeionization; Geothermal water; Ion exchange membrane; Ion exchange resin; Layered bed configuration; RO permeate; NICKEL IONS; REMOVAL; BORON;

D O I：

10.1016/j.desal.2013.02.020

中图分类号：

TQ [化学工业];

学科分类号：

081705 [工业催化];

摘要：

In this study, demineralization of reverse osmosis (RO) permeate of geothermal water by electrodeionization (EDI) method was investigated. The layered bed configuration of EDI system consists of Purolite A 500 anion exchange and Purolite CT 175 cation exchange resins in the central compartment. Selemion AME anion exchange and Selemion CME cation exchange membranes were used to separate the central compartment from the electrode compartments. The effects of applied voltage, feed flow rate and the concentration of Na2SO4 solution in the electrode compartments on product water quality were investigated. According to the results obtained, the average conductivity of RO permeate decreased from 15.0 mu S/cm to 2.9 mu S/cm in the product water when the applied voltage was increased. It was possible to obtain a product water with an average conductivity of 1.0 mu S/cm by the increase in the feed flow rate. (C) 2013 Elsevier B.V. All rights reserved.

引用

页码：48 / 54

页数：7

共 17 条

[1]

Application of electrodeionization (EDI) for removal of boron and silica from reverse osmosis (RU) permeate of geothermal water [J].