Separation of low concentration of fluoride from water by electrodialysis (ED) in the presence of chloride and sulfate ions

Küçük Resim Yok

Tarih

2009

Dergi Başlığı

Dergi ISSN

Cilt Başlığı

Yayıncı

Erişim Hakkı

info:eu-repo/semantics/closedAccess

Özet

Removal of low concentration of fluoride (2mg F-/L) in the presence of chloride and sulfate ions from aqueous solution by electrodialysis was studied. The equivalent ratios of sulfate and/or chloride were investigated as co-existing ions on fluoride removal from aqueous solution. The separation performance was evaluated in terms of mass transfer and energy consumption. It was obtained that the separation performance increased when the equivalent ratios of chloride to fluoride and sulfate to fluoride were increased. After 13 min of operation time, 63% of fluoride was removed from the solution when a binary mixture of F- : Cl- (1: 25) was employed. In the case of a binary mixture of F- : SO42- (1:25), removal of fluoride was 93% in 16 min. For a ternary mixture of F- : Cl - : SO42- (1:25:25), fluoride was separated from the mixture with a 96% of removal in 20 min.

Açıklama

Anahtar Kelimeler

Chloride, Electrodialysis, Fluoride, Ion exchange membrane, Specific power consumption, Sulfate, Water, Water treatment

Kaynak

Separation Science and Technology

WoS Q Değeri

Scopus Q Değeri

Q2

Cilt

44

Sayı

7

Künye