Journal of Korean Society of Water and Wastewater (상하수도학회지)

The Korean Society of Water and Wastewater (대한상하수도학회)
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Optimization of energy efficiency through comparative analysis of factors affecting the operation with energy recovery devices on SWRO desalination process

역삼투막 해수담수화 공정에서 에너지 회수장치의 운영인자 비교분석을 통한 에너지 효율 최적화 연구

  • Kim, Pooreum (Sungkyunkwan University Graduate School of Water Resources) ;
  • Kim, Hyungsoo (Sungkyunkwan University Graduate School of Water Resources) ;
  • Park, Junyoung (Center of Built Environment, SungKyunKwan University) ;
  • Kim, Taewoo (Architectural and Environmental Systems Engineering, SungKyunKwan University) ;
  • Kim, Minjin (Sungkyunkwan University Graduate School of Water Resources) ;
  • Park, Kitae (Sungkyunkwan University Graduate School of Water Resources) ;
  • Kim, Jihoon (Sungkyunkwan University Graduate School of Water Resources)
  • 김푸름 (성균관대학교 수자원전문대학원) ;
  • 김형수 (성균관대학교 수자원전문대학원) ;
  • 박준영 (성균관대학교 건설환경연구소) ;
  • 김태우 (성균관대학교 건설환경시스템공학과) ;
  • 김민진 (성균관대학교 수자원전문대학원) ;
  • 박기태 (성균관대학교 수자원전문대학원) ;
  • 김지훈 (성균관대학교 수자원전문대학원)
  • Received : 2017.11.28
  • Accepted : 2017.12.26
  • Published : 2018.02.15
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Abstract

Recently, interest in the development of alternative water resources has been increasing rapidly due to environmental pollution and depletion of water resources. In particular, seawater desalination has been attracting the most attention as alternative water resources. As seawater desalination consumes a large amount of energy due to high operating pressure, many researches have been conducted to improve energy efficiency such as energy recovery device (ERD). Consequently, this study aims to compare the energy efficiency of RO process according to ERD of isobaric type which is applied in scientific control pilot plant process of each $100m^3/day$ scale based on actual RO product water. As a result, it was confirmed that efficiency, mixing rate, and permeate conductivity were different depending on the size of the apparatus even though the same principle of the ERD was applied. It is believed that this is caused by the difference in cross-sectional area of the contacted portion for pressure transfer inside the ERD. Therefore, further study is needed to confirm the optimum conditions what is applicable to the actual process considering the correlation with other factors as well as the factors obtained from the previous experiments.

Keywords

References

  1. Avlonitis, S.A., Kouroumbas, K., and Vlachakis, N. (2003). Energy consumption and membrane replacement cost for seawater RO desalination plants, Desalination., 157, 151-158. https://doi.org/10.1016/S0011-9164(03)00395-3
  2. Cameron, I.B., Clemente, R.B. (2008). SWRO with ERI's PX Pressure Exchanger device-a global survey, Desalination., 221, 136-142.
  3. Dark, A., Adatoz, M. (2014). Energy recovery consideration in brackish water desalination, Desalination., 339, 34-39. https://doi.org/10.1016/j.desal.2014.02.008
  4. Farooque, A.M., Jamaluddin, A.T.M., and Al-Reweli, A.R. Saline Water Desalination Research Institute. (2004). Comparative study of various energy devices used in swro process, Issued as Technical Report No. TR.3807/EVP 02005.
  5. Guirguis, M.J. (2011). Energy Recovery Devices in Seawater Reverse Osmosis Desalination Plants with Emphasis on Efficiency and Economical Analysis of Isobaric versus Centrifugal Devices, Master's Thesis, University of South Florida, Florida, USA.
  6. Ham, Y.B., Kim, Y., Noh, J.H., Shin, S.S., and Park, J.H. (2012). Design of Loss-reduction Mechanisms for Energy Recovery Devices in Reverse-osmosis Desalination systems, J. Korean Soc. Power Syst. Eng., 16, 5-9.
  7. Kim, I.S., Oh, B.S. (2008). Technologies of Seawater Desalination and Wastewater Reuse for Soving Water Shortage, Environ. Eng. Res., 30, 1197-1202.
  8. Ko, E.O., Moon, J.D., and Park, J.M. (2010). Status-of-arts of Desalination Technology, Membrane J., 20, 185-196.
  9. Mohamed, E.S., Papadakis, G., Mathioulakis, E., and Belessiotis, V. (2005). The effect of hydraulic energy recovery in a small sea water reverse osmosis desalination system; experimental and economical evaluation, Desalination., 184, 241-246.
  10. Penate, B., Garcia-Rodriguez, L. (2011). Energy optimisation of existing SWRO (seawater reverse osmosis) plants with ERT(energy recovery turbines): Technical and thermoeconomic assessment, Energy., 36, 613-626.
  11. Qi, B., Wang, Y., Xu, S., Wang, Z., and Wang, S. (2012). Operating Energy Consumption Analysis of RO Desalting System: Effect of Membrane Process and Energy Recovery Device (ERD) Performance Variables, Ind. Eng. Chem. Res., 51, 14135-14144. https://doi.org/10.1021/ie300361e
  12. Song, D., Wang, Y., Lu, N., Liu, H., Xu, E., and Xu, S. (2015). Development and stand tests of reciprocating-switcher energy recovery device for SWRO desalination system, Desalin. Water Treat., 54, 1519-1525.
  13. Song, D., Wang, Y., Xu, S., Wang, Z., Liu, H., and Wang, S. (2014). Control logic and strategy for emergency condition of piston type energy recovery device, Desalination., 348, 1-7. https://doi.org/10.1016/j.desal.2014.05.044
  14. Stover, R.L. (2007). Seawater reverse osmosis with isobaric energy recovery devices, Desalination., 203, 168-175. https://doi.org/10.1016/j.desal.2006.03.528
  15. Sun, J., Wang, Y., Xu, S., Wang, S., and Wang, Y. (2009). Performance prediction of hydraulic energy recovery (HER) device with novel mechanics for small-scale SWRO desalination system, Desalination., 249, 667-671. https://doi.org/10.1016/j.desal.2009.03.009
  16. Voutchkov, N. (2005). SWRO desalination process: on the beach-seawater intakes, Filtsep., 42, 24-27.
  17. Wang, X., Wang, Y., Wang, J., Xu, S., Wang, Y., and Wang, S. (2010). Comparative study on stand-alone and parallel operating schemes of energy recovery device for SWRO system, Desalination., 254, 170-174. https://doi.org/10.1016/j.desal.2009.11.038
  18. Wang, Z., Wang, Y., Zhang, Y., Qi, B., Xu, S. and Wang, S. (2012). Pilot tests of fluid-switcher energy recovery device for seawater reverse osmosis desalination system, Desalin. Water Treat., 48, 310-314. https://doi.org/10.1080/19443994.2012.698833
  19. Wu, L., Wang, Y., Xu, E., Wu, J., and Xu, S. (2015). Employing groove-textured surface to improve operational performance of rotary energy recovery device in membrane desalination system, Desalination., 369, 91-96. https://doi.org/10.1016/j.desal.2015.04.034