Journal of Korea Technical Association of The Pulp and Paper Industry (펄프종이기술)

Korea Technical Association of the Pulp and Paper Industry (한국펄프종이공학회)
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Determination of the Optimum Flocculant Mixing Ratio for Paper Making Wastewater Treatment

제지 폐수처리를 위한 응집제의 최적 혼합주입량 결정 방법

  • Cho, Jun-Hyung (Dept. of Paper Science & Engineering, College of Forest and Environmental Science, Kangwon National University) ;
  • Kang, Mee-Ran (Dept. of Paper Science & Engineering, College of Forest and Environmental Science, Kangwon National University)
  • 조준형 (강원대학교 산림환경과학대학 제지공학과) ;
  • 강미란 (강원대학교 산림환경과학대학 제지공학과)
  • Published : 2008.03.31
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Abstract

In this study, dewaterability, one of the important properties of wastewater sludge, was investigated using a simple capillary suction time (CST) measurement method. It turned out that one could use the results of CST to find optimum flocculants ratio to improve drainage in wastewater treatment for the printing paper, tissue paper, and newsprint paper mill. Since the optimum ratio of flocculants could be determined with the value of CST, COD removal efficiency could be improved and optimum floc strength could be achieved with precise ratio of flocculants. It was thus that using CST for determining the optimum ratio of flocculants could be economical by reducing the amount of flocculants. Dewaterability could be measured within several seconds using the values of CST in a precise way. The dewaterability could also be useful in investigating the optimum ratio of flocculants.

Keywords

References

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