제지폐수처리의 고분자 응집제 주입량 간이 결정법
Simple Determination Method on Optimal Dosage of Polymer for Papermaking Wastewater Treatment
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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.
Abstract
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.
참고문헌 (10)
- Cho JH, "Study on flocculation characterics papermaking wastewater", Forest Science Research, 14, pp.101~111 (1998)
- Lee SH, "Studies on the determination of optimal flocculation condition in wastewater of recycled paper", Journal of Korean Tappi, 33, pp.44~51 (2001)
- Cho IH, "A study on the determination of floc break up condition for the floc strength evalution", Journal of KSEE, 14, pp.185~ (1992)
- Cho JH, "Studies on expression operations of filter cakes", Wood Science and Technoogy, pp.18~ (1990)
- Lee TH, "Characteristics of sludge dewaterability and viscosity with polymer flocculant addition", Journal of KSEE, 18, pp.1609~1618 (1996)
- liquid separation equipment scale-up, "Solid", pp.1977, Purchas DB
- Shirato M, "Internal flow mechanism in filter cakes", AIChE Journal, 15, pp.405~409 (1969)
- Cho JH, "Pulp and Paper Wastewater Treatment Technology" (2007), Kangwon National University Press
- Scholz M, "Development of a Revised Capillary Suction Time (CST) test", Water Conditioning and Purification International, pp.46~ (2006)
- Scholz M, "Review of recent trends in Capillary Suction Time (CST) dewaterability testing research", Industrial and Engineering Chemistry Research, 44, pp.8157~8163 (2005)
