Effect of salt combination on separation of monovalent and divalent salts by electrodialysis

Makaleler > Tam Makale · 2006

Yazarlar: Nalan KABAY, Ö İPEK, H KAHVECI, MÜMİNE YÜKSEL

DESALINATION, SCI Expanded İndekslerine Giren Dergi, Uluslararası, 2006, cilt 198, ss 84-91

DOI: 10.1016/j.desal.2006.09.013

Özet

The separation of monovalent (Na+, K+) and divalent ions (Ca2+, Mg2+) from binary and ternary mixtures by electrodialysis was compared using various salt combinations (NaCl, NaNO3, KCl, KNO3, K2SO4, Na2SO4, CaCl2, Ca(NO3)(2), MgCl2, Mg(NO3)(2)) at room temperature using a constant flow rate. The efficiencies of each run were evaluated as specific power consumption with the electrical energy consumed only in stack. At 5 V, percent removal of monovalent cations from salt solutions containing monovalent anions (chloride, nitrate) was performed with a higher efficiency than from the salt solutions containing divalent anions (sulfate). When the applied voltage increased to 10 V, the effect of anion charge on percent removal of cations disappeared.

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