Browse > Article
http://dx.doi.org/10.5916/jkosme.2013.37.5.467

A study on energy efficiency improvement of waste-water treatment system by freeze concentration method  

Kim, Jung-Sik (Korea Marine Equipment Research Institute)
Lim, Seung-Taek (Graduate School of Korea Maritime University)
Oh, Cheol (Division of Engineering, College of Maritime Sciences, Korea Maritime University)
Publication Information
Journal of Advanced Marine Engineering and Technology / v.37, no.5, 2013 , pp. 467-476 More about this Journal
Abstract
Freeze concentration method has advantages of high thermodynamic efficiency, low energy consumption and purified water re-use. In this study, freeze concentration waste-water system which was designed as the small and medium sized capacity was analyzed about the rate of electric power consumption and the daily treatment capacity to suggest the direction of system development. At first, power consumption and operation time of the system with fresh water precooler or without it was calculated by computer modeling and analysis. Subsequently, the change of design treatment capacity was applied to the system with fresh water cooler. As a result, the rate of electric power consumption was higher as 0.6 Wh/kg but daily treatment capacity increased in quantity as 19 % in the system with fresh water precooler. As design treatment capacity increased, the rate of electric power consumption was lower and daily treatment capacity was larger in quantity.
Keywords
Freeze concentration; Non-precooling; Precooling; Design capacity; Waste-water treatment;
Citations & Related Records
연도 인용수 순위
  • Reference
1 J. -O. Kim, "Future promising green environment technology : about water treatment technology", Journal of Korean Society of Hazard Mitigation, vol. 10, no. 1, pp. 6-10, 2010 (in Korean).
2 H. -D. Jeong, Influence of Operational Factors on the Falling Film Freeze Concentration System for Wastewater Treatment, Master Thesis, Department of Civil and Environmental Engineering, Korea Maritime University, Korea, pp. 1-2, 2005 (in Korean).
3 Y. -C. Song and E. -G. Lee, "Effect of components on the freeze concentration of live stock wastewater treatment", Korea Society of Environmental Engineers, Autumn Conference, 1998 (in Korean).
4 Sakasita Sigeru, "Air conditioning utility using thermal storage type refrigerating system", Monthly Publication Chemical Engineering, pp. 44-48, 2000 (in Korean).
5 J. -C. Kim, Study on Construction of Infrastructure of Promotional Spreading of High Efficiency Equipment and Appliances by Improvement of Energy Efficiency Policy and International Standardization, Soongsil University, Korea, pp. 141-142, 2006 (in Korean).
6 Hiroshi Sato, "Water treatment technology using freezing separation method", Refrigeration, vol. 74, no. 857, pp. 196-200, 1999.
7 J. -S. Kim, An Experimental Study on Waste Water Concentration by Separating Method of Freezing, Master thesis, Department of Marine System Engineering, Korea Maritime University, Korea, 2006 (in Korean).
8 Ling Liu, Tomoyuki Fujii, Kiro Hayakawa and Osato Miyawaki, "Prevention of initial supercooling in progressive freeze-concentration", Bioscience, Biotechnology and Biochemistry. vol. 62, no. 12, pp. 2467 -2469, 1998.   DOI   ScienceOn
9 E. -T. Lee, Development and Practical Application of Freeze Concentration Technology for Wastewater Treatment, Jeiotech, Korea, 2005 (in Korean).
10 Aspen Technology, Aspen HYSYS Simulation Basis Guide, Aspen Technology Inc., USA, pp. A1-A95, 2011.