Journal of Korean Society on Water Environment (한국물환경학회지)

Korean Society on Water Environment (한국물환경학회)
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Pollutant Removal and Characteristic of Floc by PACI Coagulation

PACI을 이용한 오염물질 제거 및 입자 특성에 관한 연구

  • Moon, Byung-Hyun (Dept. of Environ. Eng., Changwon National University) ;
  • Kim, Seung-Hyun (Dept. of Architectural, Civil and Environ. Eng., Kyungnam University) ;
  • Lee, Hyang-In (Dept. of Environ. Eng., Changwon National University)
  • 문병현 (창원대학교 환경공학과) ;
  • 김승현 (경남대학교 공간환경시스템 공학부) ;
  • 이향인 (창원대학교 환경공학과)
  • Published : 2000.12.30
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Abstract

This study is to investigate the floc structure and removal of turbidity and organic matter by PACI coagulation. The turbidity removal by PACI coagulation was obtained at larger pH range than alum coagulation. And the removal of organic matter was obtained at smaller pH range than that of turbidity. The organic matter was removed by the adsorption of $Al(OH)_3$ precipitates. Floc structure was characterized by measuring fractal dimension and volume diameter using AIA and SALLS. Fractal dimension measured by AIA did not show the different characteristics of floc produced in sweep floe and charge neutralization region. Using SALLS, floes in sweep floc region were found to be larger size and fractal dimension than flocs in charge neutralization region. As pollutant removal increased. larger fractal dimension and size of floc were measured. SALLS method was found to be more useful method to characterize flocs in coagulation than AIA method.

Keywords

Acknowledgement

Supported by : 한국학술진흥재단

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