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- 저자 : 고상모 ( Go Sang Mo ) (검색결과 2 건)
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고 기능성 수질 정화 여과재로서의 장석질 모래 활용연구
고상모 ( Go Sang Mo ),송민섭 ( Song Min Seob ),홍석정 ( Hong Seog Jeong ) 한국광물학회 2003 광물과 암석 (J.Miner.Soc.Korea) Vol.16 No.4
Domestic water treatment plants operate the rapid and slow filtering system using the filtering sands. Most of them are composed of beach sands, which have less sorption capacity of heavy metals as well as organic contaminants. Therefore, the development of fortified functional filtering materials with high removal capacity of organic and inorganic contaminants is needed to prevent the unexpected load of contaminated source water. This study aims to test the hydrochemical change and the removing capacity of heavy metals such as Cd, Cu, and Pb on the Jumunjin sand, feldspathic sand(weathering product of Jecheon granite), feldspathic mixing sand Ⅰ(fe1dspathic sand mixed with 10 wt% zeolite), and feldspathic mixing sand Ⅱ (feldspathic sand mixed with 20 wt% zeolite). Feldspathic mixing sand Ⅰ and Ⅱ showed the eruption of higher amounts of cations and anions compared with the Jumunjin sand and feldspathic sand. They also showed higher eruption of Si, Ca, so4 ions than that of Al, N0₃, Fe, K, Mg, and P. Feldspathic mixing sand Ⅱ caused higher eruption of some cations of Na, Ca, Al than feldspathic mixing sand Ⅰ, which is the result controlled by the dissolution of zeolite. Jumunjin sand and feldspathic sand showed very weak sorption of Cd, Cu and Pb. In contrast to this, feldspathic mixing sand Ⅰ and Ⅱ showed the high sorption and removal capacity of the increasing order of Cd, Cu and Pb. Feldspathic mixing sand Ⅱ including 20% zeolite showed a fortified removal capacity of some heavy metals. Therefore, feldspathic mixing sand mixed with some contents of zeolite could be used as the fortified filtering materials for the water filtering and purification in the domestic water treatment plants.
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HDTMA-, BDTDA- 및 CP-스멕타이트의 물리-화학적 특성
고상모 ( Go Sang Mo ),홍석정 ( Hong Seog Jeong ),송민섭 ( Song Min Seob ) 한국광물학회 2003 광물과 암석 (J.Miner.Soc.Korea) Vol.16 No.4
This study aims to provide the physicochemical properties of three kinds of organosmectites which can be diversely used in industries. Some properties of them were compared with Na-smectite. Three kinds of organo-smectites such as Hexadecyltrimethylammonium(HDTMA), Benzyldimethyltetradecylammonium(BDTDA), and Cetylpyridinium(CP) exchanged smectites were manufactured for this study. Three types of organo-smectites showed the alkaline character(pH 9), very low swelling property and viscosity, and a fast flocculation behavior because of strong hydrophobic property in contrast to hydrophilic Na-smectite. Three organo-smectites showed the strong interlayer expansion with basal spacing from 19 A to 23 A compared with the Na-smectite of about 12 A. Organic cations such as HDTMA, BDTDA, and CP exchanged into smectite were completely decomposed in the temperature range from 250℃ to 400℃. Generally, three organo-smectites showed the similar mineralogical, physicochemical and thermal properties. But their properties are quite different from Na-smectite. Considering economically, CP exchanged smectite would be used for the diverse utilization field in the future time.
ScienceON
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