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한국환경과학회지 = Journal of the environmental sciences v.12 no.8, 2003년, pp.861 - 870   피인용횟수: 2

Effects of Polyelectrolyte Dosage, Kaoline Particles and pH on Flocculation of Humic Acid by Catonic Polyelectrolytes

Kam, Sang-Kyu   (Division of Civil and Environmental Engineering, Cheju National UniversityUU0001165  ); Kim, Dae-Kyoung   (Division of Civil and Environmental Engineering, Cheju National UniversityUU0001165  ); Lee, Min-Gyu   (Division of Chemical Engineering, Pukyong National UniversityUU0000598  );
  • 초록

    Using a simple continuous optical technique, coupled with measurements of zeta potential, the effects of polyelectrolyte dosage, kaoline particles and pH on flocculation of humic acid by several cationic polyelectrolytes, have been examined. The charge density of a polyelectolyte is important in determining the optimum dosage and in the removal of humic acid. The optimum dosage is less for the polyelectrolytes of higher charge density and is the same regardless of the presence of kaoline particles of different turbidity. At the dosage, the removal of humic acid is higher for the polyelectrolytes of higher charge density and the zeta potential of humic acid approaches to near zero, With increasing pH of humic acid, the optimum dosage increases and the flocculation index value obtained at the dosage decreases in the following pH 7 > pH 5 > pH 9, regardless of polyelectrolytes.


  • 주제어

    Flocculation .   Humic Acid .   Kaoline particles .   Cationic polyelectrolyte .   Zeta potential .   Optimum dosage.  

  • 참고문헌 (28)

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  • 이 논문을 인용한 문헌 (2)

    1. Lee Min-Gye ; Kam Sang-Kyu 2005. "Charge Determination of Cationic Polyelectrolytes by Visual Titrimetry and Spectrophotometry" 한국환경과학회지 = Journal of the environmental sciences, 14(6): 525~532     
    2. 2008. "" 한국환경과학회지 = Journal of the environmental sciences, 17(3): 275~285     

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    2. 1997 "Comparison of Flocculation-Spectrophotometry and Streaming Current Detector Method to the Control of Flocculants for the Removal of Humic Acid" Environmental sciences : bulletin of The Korean Environmental Sciences Society 1 (2): 137~144    
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