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수용액중의 Cr ( Ⅵ ) 이온 제거에서의 침전부상법과 흡착콜로이드부상법의 비교
강성길,최상준 ( Sung Gil Kang,Sang June Choi ) 한국화학공학회 1994 Korean Chemical Engineering Research(HWAHAK KONGHA Vol.32 No.3
Experimental investigations on the removal of Cr(VI) from aqueous solution were carried out by the foam separation techniques(precipitate and adsorbing colloid flotation) using sodium lauryl sulfate as a collector. The optimum pH for the removal of Cr(VI) was found to be about 8 for precipitate flotation and about 4 for adsorbing colloid flotation with Fe(OH)₃. The effect of surfactant and foreign ions(Na^+, Ca^(2+), NO₃^-, SO₄^(2-) addition on the removal efficiency were observed. The adsorption and separation mechanism on the removal of Cu(II) ion by the foam separation techniques of precipitate and adsorbing colloid flotation were also observed.
흡착콜로이드부상법에 의한 수용액중의 Cr ( Ⅵ ) 이온 제거
강성길,최상준 ( Sung Gil Kang,Sang June Choi ) 한국화학공학회 1993 Korean Chemical Engineering Research(HWAHAK KONGHA Vol.31 No.5
Experimental investigations on the removal of Cr(VI) from aqueous solution were carried out by adsorbing colloid flotation using sodium lauryl sulfate as a collector. The optimum pH for the removal of Cr(VI) was found to be about 4.0-4.5 using Fe(OH)₃ as an adsorbing colloid and about pH 4.0-6.5 using FeSO₄ as a reduction agent. The effects of surfactant(sodium lauryl sulfate), foreign ions(Na^+, Ca^(2+), NO₃, SO₄^(-2)), and Al(III) on the removal efficiency were investigated. The adsorption and separation mechanism on the removal of Cu(II) ion by the foam separation techniques were observed.