The removal of fluoride from water based on applied current and membrane types in electrodialyis

被引：55
作者：
Arahman, Nasrul [1 ]
Mulyati, Sri [1 ]
Lubis, Mirna Rahmah [1 ]
Takagi, Ryosuke [2 ]
Matsuyama, Hideto [2 ]
机构：
[1] Univ Syiah Kuala, Dept Chem Engn, Jln Syeh Abdurrauf 7, Darussalam 23111, Banda Aceh, Indonesia
[2] Kobe Univ, Dept Chem Sci & Engn, Nada Ku, 1-1 Rokkoda Dai Cho, Kobe, Hyogo, Japan
来源：
JOURNAL OF FLUORINE CHEMISTRY | 2016年 / 191卷
关键词：
Anion exchange membrane; Electrodialysis; Defluoridation; Chloride; Fluoride; ANION-EXCHANGE MEMBRANE; HOLLOW-FIBER MEMBRANE; EXCESS FLUORIDE; POLYELECTROLYTE; PERFORMANCE; ADSORBENT; RECOVERY; CHINA;
D O I：
10.1016/j.jfluchem.2016.10.002
中图分类号：
O61 [无机化学];
学科分类号：
070301 ; 081704 ;
摘要：
In many places over the world, the fluoride concentration in ground water as raw water is higher than the threshold standard for healthy drinking water. This paper discusses a fluoride ion removal from sodium fluoride solution by using batch-system electrodialysis (ED) process. The effect of type of anion exchange membranes on the deionization rate of fluoride ion is investigated. The removal of fluoride ion from water by electrodialysis using CMX/AMX and CMX/ACS cation/anion exchange membranes combinations has been investigated on various applied currents, such as 3.64, 5.45, 9.09,12.7, and 18.2 (A/m(2)). It was found that the increase of current densities made an operational time of ED shorter to achieve maximal ion removal. The effect of other coexistent ions such as chloride ion in water on the profile of ion removal and the ED cell resistance was discussed. It was also found that chloride ion passed more easily through anion exchange membranes than through fluoride ion. (C) 2016 Elsevier B.V. All rights reserved.
引用
收藏
页码：97 / 102
页数：6
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