Membrane Journal (멤브레인)

The Membrane Society of Korea (한국막학회)
권호 표지
DOI QR코드

DOI QR Code

Evaluation of Cleaning Efficiency of Reverse Osmosis Module Using Micro-bubble

미세기포를 이용한 역삼투 모듈 세정 효율 평가

  • Received : 2016.12.14
  • Accepted : 2017.01.05
  • Published : 2017.02.28
Download PDF
⟨ Previous Next ⟩

Abstract

Among many methods in solving the organic contamination in the reverse osmosis operation, caustic soda (NaOH) wash method is efficient and commercially affordable. In continuation of our many organic pollution removal works, this study focused mainly on caustic soda wash with micro-bubble to removal the organic contamination of the spent membrane from reverse osmosis process. First, the membrane was forced the pollute using known organic pollutants such as Humic acid, Bovine serum albumin, Sodium alginate drug. The organic contamination on the membrane was monitored flux. The decontamination of organic contaminants was derived flux variation at individual caustic soda was injected micro-bubble methods and combined method as well. the found results explain removal of organic contaminants effective only by combined caustic soda wash with micro-bubble methods.

역삼투막 운영에 있어서 유기물 오염에 대한 문제들을 해결하기 위해 많은 연구를 하고 있다. 현재 가성소다(NaOH)를 사용하여 유기물 오염 제거를 하고 있다. 본 연구는 지속적인 막오염 증가 문제를 해결하기 위한 물리/화학적 세정 기법으로서 기존에 사용하던 가성소다와 Micro-bubble를 이용하여 유기물 오염 제거 실험을 수행되었다. 멤브레인 강제 오염을 위해 Humic acid sodium, Bovine serum albumin, Sodium alginate 약품을 사용하여 유기물 오염을 시켰다. 유기물 오염에 따른 Flux를 관찰하였고, 가성소다와 Micro-bubble를 이용한 유기물 오염 제거 실험은 가성소다로만 사용했을 때보다 향상된 것을 관찰했다.

Keywords

References

  1. I. S. Kim and B. S. Oh, "Technologies of seawater Desalination and Wastewater Reuse for soving water shortage", J. Korean Society of Environmental Engineers, 30, 1197 (2008).
  2. J. Y. Park, S. H. Hong, J. H. Kim, W. W. Jeong, J. W. Nam, Y. H. Kim, M. J. Jeon, and H. S. Kim, "Evaluation on chemical cleaning efficiency of organic-fouled SWRO membrane in seawater desalination process", J. Korean Society of Water and Wastewater, 25, 177 (2011).
  3. A. G. I. Dalvi, R. Al-Rasheed, and M. A. Javeed, "Studies on organic foulants in the seawater feed of reverse osmosis plants of SWCC", Desalination, 132, 217 (2000). https://doi.org/10.1016/S0011-9164(00)00153-3
  4. K. Katsoufidou, S. G. Yiantsios, and A. J. Karabelas, "An experimental study of UF membrane fouling by humic acid and sodium alginate solution the effect of backwashing on flux recovery", Desalination, 220, 214 (2008) https://doi.org/10.1016/j.desal.2007.02.038
  5. S. Hong and M. Elimelech, "Chemical and physical aspects of natural organic matter (NOM) fouling of nanofiltration membranes", J. Membr. Sci., 132, 159 (1997). https://doi.org/10.1016/S0376-7388(97)00060-4
  6. M. Nystrom, L. Kaipia, and S. Luque, "Fouling and retention of nanofiltration membranes", J. Membr. Sci., 98, 249 (1995). https://doi.org/10.1016/0376-7388(94)00196-6
  7. S. Kim, S. Lee, E. Lee, S. Sarper, C. Kim, and J. Cho, "Enhanced or reduced concentration polarization by membrane fouling in seawater reverse osmosis (SWRO) processes", Desalination, 247, 162 (2009). https://doi.org/10.1016/j.desal.2008.12.021
  8. W. S. An, S. Y. Lee, and M. Elimelec, "Chemical and physical aspects of cleaning of organic-fouled reverse osmosis membrane", J. Membr. Sci., 272, 198 (2006). https://doi.org/10.1016/j.memsci.2005.07.035
  9. Y. H. Kim, "Evaluation of physical and chemical cleaning performance of microbubble of secondary effluents treatment membrane system" Ph.K. Dissertation, Uni. of sungkyunkwan, Seoul, Korea (2011).