Journal of Korean Society of Water and Wastewater (상하수도학회지)

The Korean Society of Water and Wastewater (대한상하수도학회)
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Analysis of seawater desalination energy consumption based on changes in raw water characteristics and operating condition

원수 특성 변화 및 공정운영 조건에 따른 해수담수화 에너지 소비량 분석

  • Yun, Seung-Hyeon (Water and Environmental Science Department, Korea Interfacial Science and Engineering Institute) ;
  • Woo, Dal-Sik (Water and Environmental Science Department, Korea Interfacial Science and Engineering Institute)
  • 윤승현 (재단법인 한국계면공학연구소, 물환경연구팀) ;
  • 우달식 (재단법인 한국계면공학연구소, 물환경연구팀)
  • Received : 2018.12.10
  • Accepted : 2019.08.07
  • Published : 2019.08.15
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Abstract

Desalination plants are generally studied with higher operating costs compared to water supply facilities. This study was conducted to reduce the cost of water production and to preserve existing water resources. Therefore, the purpose of this study was to utilize the control valves to increase maximum efficiency, thereby reducing the power of the pumps and operating costs. Specific energy consumption was shown to reduce the process operating power by up to 1.7 times from 6.17 to $3.55kWh/m^3$ based on seawater reverse osmosis 60 bar. In addition, the water intake process was divided into pre, inter, and post-according to the use method of blasting, and the water treatment process was divided into pre, inter, and post blending. In order to reduce power consumption, the blending process was combined to operate the facility, which resulted in the reduction of power consumption in the order post > pre-inter> inter blending.

Keywords

References

  1. Hwang, M.H. and Kim. I.S. (2016). Comparative analysis of seawater desalination technology in korea and overseas, J. Korean Soc. Environ. Eng., 38(5), 255-268. https://doi.org/10.4491/KSEE.2016.38.5.255
  2. Intelligence, G.W., Yearbook, I.D., Summit, G.W. and Card, R. (2011). Global Water Intelligence, Global Water Intelligence, 12(10), 1-72.
  3. Jeon, J., kWhak, K., Kim, N., Jung, J., Son, D. M. and Kim, S. (2017). Study on the necessity of energy recovery device in small scale reverse osmosis desalination plant, Korean Chem. Eng. Res., 55(6), 762-766. https://doi.org/10.9713/kcer.2017.55.6.762
  4. Kim, S., Cho, D., Lee, M.S., Oh, B.S., Kim, J.H. and Kim, I.S. (2009). SEAHERO R&D program and key strategies for the scale-up of a seawater reverse osmosis (SWRO) system, Desalination, 238(1-3), 1-9. https://doi.org/10.1016/j.desal.2008.01.029
  5. Lee, H. (2015). Design for seawater reverse osmosis plant using water blending in smart water grid, Korean Soc. Water Wastewater, 29(1), 89-96. https://doi.org/10.11001/jksww.2015.29.1.089
  6. Lee, H., Ryu, H., Lim, J.H., Kim, J.O., Dong Lee, J. and Kim, S. (2016). An optimal design approach of gas hydrate and reverse osmosis hybrid system for seawater desalination, Desalination Water Treat., 57(19), 9009-9017. https://doi.org/10.1080/19443994.2015.1049405
  7. Park, B., Lee, J., Kim, M., Won, Y.S., Lim, J.H. and Kim, S. (2016). Enhanced boron removal using polyol compounds in seawater reverse osmosis processes, Desalination Water Treat., 57(17), 7910-7917. https://doi.org/10.1080/19443994.2015.1038596
  8. Park, J. (2010). Feedwater TDS - O&M costs relationship for small-scale ro desalination plant, Master's Thesis, Dong-A University.
  9. Sablani, S.S., Goosen, M.F.A., Al-Belushi, R. and Wilf, M. (2001). Concentration polarization in ultrafiltration and reverse osmosis: a critical review, J. Desalination, 141(3), 269-289. https://doi.org/10.1016/S0011-9164(01)85005-0
  10. Woo, S. and Kim, Y. (2017). Reduction of power consumption by variable speed operation of high pressure pump in seawater reverse osmosis desalination plant, J. Korean Soc. Flu. Mach., 20(5), 33-39.
  11. XIAO, W. (2004). Effect of source water blending on copper release in pipe distribution system : Thermodynamic and empirical models, Ph.D. Dissertation, University of Central Florida Orlando, Florida.

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  1. Gas hydrates in sustainable chemistry vol.49, pp.15, 2019, https://doi.org/10.1039/c8cs00989a