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미셀형성을 이용한 한외여과막에서의 코발트(Co), 마그네슘(Mg) 이온 제거

Romoval of Co & Mg Ions Using Micellar Enhanced Ultrafiltration

양현수 한광희 강덕원 송명재 김영호

Yang HS Han KH Kang DW Song MJ Kim YH

HWAHAK KONGHAK, August 1996, 34(4), 482-488(7), NONE

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Abstract

음이온계면활성제는 임계미셀농도 이상에서 소수성 효과에 의해 미셀이 형성되고, 미셀표면의 정전기적인 인력에 의해 양이온 금속이온과 흡착하거나 결합하여 거대분자를 형성하였다. 그리고 이 수용성 흐름을 미셀이나 흡착된 금속 양이온의 투과를 막기에 기공이 충분히 작은 한외여과막에 통과시켰다. 본 연구에서는 막투과압력차는 금속제거에 비교적 작은 영향을 및치는 반면 계면활성제와 금 속의 비(S/M)는 상당한 영향을 미쳤다. 또한 음이온계면활성제 SDS는 Mg이온보다 Co이온에 대하여 친화력이 큼을 알 수 있었으며 Co이온의 제거율은 95%로 관찰되었다.

The anionic surfactant formed highly charged aggregates called micelles above the CMC, and formed macromolecules by which the metal cations adsorbed or binded. The aqueous stream was then passed through an ultrafiltration membrane with pores small enough to block the passage of the micelles and adsorbed metal cations. In this study, experimental results showed that transmembrane pressure had a relatively small effect on metal removal whereas the level of surfactant-to-metal ratio(S/M) had a substantial effect. The SDS in this study showed higher affinity of Co ion than that of Mg ion. The rejection coefficient of Co was observed as 95%.

Keywords

Micellar Ultrafiltration Ion Removal

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