Analytical Science and Technology (분석과학)

The Korean Society of Analytical Sciences (한국분석과학회)
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A Study on the Coagulation Efficiencies of Some Organics by Aluminum Based Coagulants

알루미늄 응집제들에 의한 몇가지 유기화합물의 응집효과에 관한 연구

  • Kim, Mi-Hyang (Department of Chemistry and Institute of Basic Sciences, Kyung Hee University) ;
  • Kim, Young-Man (Advanced Analysis Center, KIST) ;
  • Choi, Beom-Suk (Department of Chemistry and Institute of Basic Sciences, Kyung Hee University)
  • 김미향 (경희대학교 기초과학연구소 자연과학대학 화학과) ;
  • 김영만 (한국과학기술연구원 특성분석센타) ;
  • 최범석 (경희대학교 기초과학연구소 자연과학대학 화학과)
  • Received : 1999.05.10
  • Published : 1999.12.25
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Abstract

Coagulation efficiencies of some organic compounds by aluminum based coagulants including alum, PAC, PACS were studied. The coagulation efficiency was highest at the neutral pH. It was decreased with an order of PACS, PAC, and alum at the neutral pH. The organic compounds of high molecular weights showed good coagulation efficiencies with all coagulants, while the small molecules were not coagulated. Organic compounds having more than two adjacent functional groups of OH and COOH showed coagulation efficiencies of 10~80%.

Alum, PAC, PACS의 알루미늄 응집제에서 유기화합물의 응집효율을 조사하였다. pH에 따른 응집효율은 pH 6~7에서 가장 크며, 중성의 pH에서 응집효율은 PACS, PAC, alum의 순서로 감소하였다. 분자량이 큰 유기물은 모든 응집제에 대해 좋은 응집율을 보였으나 작은 분자들은 응집되지 않았다. 반면에 분자량이 작은 유기물 중에서 인접한 위치에 2개 이상의 COOH와 OH의 작용기를 가진 분자들은 10~80%의 응집효율을 보였다.

Keywords

Acknowledgement

Supported by : 한국학술진흥재단

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