Journal of Forest and Environmental Science

  • 제30권1호
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  • Pages.85-90
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  • 2014
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  • 2288-9744(pISSN)
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  • 2288-9752(eISSN)
강원대학교 산림과학연구소 (Institute of Forest Science, kangwon National University)
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제지폐수처리의 고분자 응집제 주입량 간이 결정법

Simple Determination Method on Optimal Dosage of Polymer for Papermaking Wastewater Treatment

  • 조준형 (강원대학교 산림환경과학대학 제지공학과) ;
  • 강미란 (국립산림과학원) ;
  • 김해난 (동북임업대학생물질재과학학여기출교육부중점실험실)
  • Cho, Jun-Hyung (Department of Paper Science & Engineering, College of Forest and Environmental Science, Kangwon National University) ;
  • Kang, Mee-Ran (Korea Forest Research Institute) ;
  • Jin, Hai-Lan (Key Laboratory of Bio-Based Material Science and Technology of Ministry of Education, Northeast Forestry University)
  • 투고 : 2014.02.06
  • 심사 : 2014.02.10
  • 발행 : 2014.02.28
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초록

Dewaterability, one of the important properties of wastewater sludge, was investigated using a simple capillary suction time (CST) measurement method. CST and SRF have a very close co-relation. It was convinced that CST method was quite effective, and compensating the time-consuming SRF of conventional drainage measuring 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 tissue paper production at a mill. Since the optimum ratio of flocculants could be determined with the value of CST and COD removal efficiency could be improved with precise ratio of flocculants. Thus, using CST for determining the optimum ratio of flocculants could be economical by reducing the amount of flocculants. Dewaterability might 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.

키워드

참고문헌

  1. Cho JH, Jung WK, Kim JH. 1998. Study on flocculation characterics papermaking wastewater. Forest Science Research 14: 101-111.
  2. Lee SH, Lim TJ, Cho JH. 2001. Studies on the determination of optimal flocculation condition in wastewater of recycled paper. Journal of Korean Tappi 33: 44-51.
  3. Cho IH, Yoon TI, Lee MJ, Kim NJ. 1992. A study on the determination of floc break up condition for the floc strength evalution. Journal of KSEE 14: 185.
  4. Cho JH. 1990. Studies on expression operations of filter cakes. Wood Science and Technoogy 18.
  5. Lee TH, Seo JW, Lee SM, Park JW, Song TJ. 1996. Characteristics of sludge dewaterability and viscosity with polymer flocculant addition. Journal of KSEE 18: 1609-1618.
  6. Purchas DB. 1977. Solid/liquid separation equipment scale-up. Uplands Press Ltd., Croydon, Eng.
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  8. Cho JH. 2007. Pulp and Paper Wastewater Treatment Technology. Kangwon National University Press.
  9. Scholz M, Tapp J. 2006. Development of a Revised Capillary Suction Time (CST) test. Water Conditioning and Purification International, 46.
  10. Scholz M. 2005. Review of recent trends in Capillary Suction Time (CST) dewaterability testing research. Industrial and Engineering Chemistry Research 44: 8157-8163. https://doi.org/10.1021/ie058011u