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Search / Korean Journal of Chemical Engineering
HWAHAK KONGHAK,
Vol.31, No.5, 611-617, 1993
흡착콜로이드부상법에 의한 수용액중의 Cr(VI) 이온 제거
Removal of Cr(VI) from Aqueous Solution by Adsorbing Colloid Flotation
강성길, 최상준
수용액중의 Cr(VI) 이온을 음이온 계면활성제 sodium lauryl sulfate를 사용하여 흡착콜로이드부상법을 이용하여 제거하였다. Cr(VI) 이온 제거의 최적 pH는 Fe(OH)3를 흡착콜로이드로 사용한 경우에서는 pH4.0-4.5의 범위에서, FeSO4를 환원제로 사용한 경우에는 pH는 4.0-6.5의 범위에서 나타났다. Cr(VI) 이온 제거효율에 영향을 미치는 인자들인 계면활성제, 외부이온, Al(III) 이온 첨가 등의 영향에 대해 조사하였다. 거품분리기술에 의한 수용액중의 Cr(VI) 이온 제거에 있어 흡착기구 및 분리 메카니즘을 관찰하였다.
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 pH4.0-6.5 using FeSO4 as a reduction agent. The effects of surfactant(sodium lauryl sulfate), foreign ions(Na+, Ca2+, NO3-, SO42-), 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.
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[Cited By]
  1. Kim KH, Seo EJ, Choi SJ, HWAHAK KONGHAK, 37(1), 115, 1999
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