Proceedings of the Korean Institute of Electrical and Electronic Material Engineers Conference (한국전기전자재료학회:학술대회논문집)
- 2009.05a
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- Pages.4-4
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- 2009
Purification of wastewater from paper factory by cryo-cooled high-$T_c$ superconducting magnetic separator
전도냉각형 고온초전도 자석을 이용한 제지폐수의 자기분리에 의한 정수
- Ha, Dong-Woo (Korea Electrotechnology Research Institute) ;
- Kim, Tae-Hyung (Korea Electrotechnology Research Institute) ;
- Sohn, Myung-Hwan (Korea Electrotechnology Research Institute) ;
- Kwon, Jun-Mo (Korea Electrotechnology Research Institute) ;
- Baik, Seung-Kyu (Korea Electrotechnology Research Institute) ;
- Oh, Sang-Soo (Korea Electrotechnology Research Institute) ;
- Ko, Rock-Kil (Korea Electrotechnology Research Institute) ;
- Ha, Hong-Soo (Korea Electrotechnology Research Institute) ;
- Kim, Ho-Sup (Korea Electrotechnology Research Institute) ;
- Kim, Young-Hun (Andong National Univ.) ;
- Kang, Che-Hun (Andong National Univ.) ;
- Ha, Tae-Wook (Taegu Science College)
- 하동우 (한국전기연구원) ;
- 김태형 (한국전기연구원) ;
- 손명환 (한국전기연구원) ;
- 권준모 (한국전기연구원) ;
- 백승규 (한국전기연구원) ;
- 오상수 (한국전기연구원) ;
- 고락길 (한국전기연구원) ;
- 하홍수 (한국전기연구원) ;
- 김호섭 (한국전기연구원) ;
- 김영훈 (안동대학교) ;
- 강채훈 (안동대학교) ;
- 하태욱 (대구과학대학)
- Published : 2009.05.15
Abstract
Paper factories use a large amount of water and same amount of wastewater is generated. It is important to recycle the wastewater because of water shortages and water pollution. The existing water treatment facilities like precipitation process need large-scale equipment and wide space to purify the wastewater of paper factory. High gradient magnetic separation (HGMS) system has the merits to purify rapidly because of large voids at filter and to occupy small space. In this paper, two types of superconducting magnets were used for HGMS systems. Cryo-cooled Bi-2223 superconducting magnet system with 70 mm room temperature bore and 200 mm of height was prepared. Cryo-cooled Nb-Ti superconducting magnet with 100 mm room temperature bore and 600 mm of height was used for magnetic separator. Magnetic filters were designed by the analysis of magnetic field distribution at superconducting magnets. The various magnetic seeding reactions were investigated to increase the reactivity of coagulation. The effects of magnetic separation of wastewater were investigated as variation of magnetic field strength and flow rate of wastewater.