Journal of Environmental Health Sciences (한국환경보건학회지)

Korean Society of Environmental Health (한국환경보건학회)
권호 표지
DOI QR코드

DOI QR Code

Effects of pH, Alkalinity, Chloride Ion on the Copper Pipe Corrosion

동관에서 pH, 알칼리도, 염소이온이 부식에 미치는 영향

  • Jo, Kwan-Hyung (Department of Civil & Environmental Engineering, Chungwoon University) ;
  • Kim, Sun-Il (Korea Testing and Research for Chemical Industry) ;
  • Woo, Dal-Sik (Korea Interfacial Science and Engineering Institute)
  • 조관형 (청운대학교 건설토목환경공학과) ;
  • 김선일 (한국화학시험연구원) ;
  • 우달식 ((재)한국계면공학연구소)
  • Published : 2007.02.28
Download PDF
⟨ Previous Next ⟩

Abstract

This study investigated the effects of pH, alkalinity, and chlorine ion which are important water quality impact factors to the corrosion in the simulated distribution system where the copper pipe is affixed. The result shows that pitting index was increased as the alkalinity and chloride ion increase in the distilled water, but there was no relation to pH. Actually the uniform corrosion rate was decreased as the pH increase with the laboratory tap water. In conclusion, it is necessary to control the pH which stands above minimum 7.5 to prevent pitting corrosion in the copper pipe. Consequently, comprehensive research about the effect of lime soda($Ca(OH)_2$) which was used as a coagulation additive in the water treatment plant to pipe corrosion must be accomplished additionally.

Keywords

References

  1. 윤태호, 이윤진, 이옥재, 이의광, 김현, 이동찬, 남상호 : 수돗물 배급수 계통의 유리잔류염소농도에 따른 종속영양세균의 거동에 관한 연구. 한국환경위생학회지, 28(3), 9-18, 2002
  2. Lee, Y. J. : Efficiency comparison between chlorine and chlorine dioxide to control bacterial regrowth in water distribution system. Korean Journal of Environmental Health, 32(4), 282-291, 2006
  3. 구성은, 우달식, 이두진, 김주환, 안효원, 문광순 : 수질제어 및 부식억제제에 의한 상수도관의 내부부식 제어. 상하수도학회지, 20(2), 215-223, 2006
  4. 안효원, 우달식 : 상수도 배급수시설 부식방지를 위한 부식억제제 적용의 현안과 과제. 한국상하수도협회지, 8, 96-103, 2004
  5. 우달식, 구성은, 이병두, 김주환, 문광순 : 배급수 계통에서 부식억제제 적용에 따른 부식과 적수와의 상관관계. 상하수도학회지, 19(1), 68-77, 2005
  6. Nishikata, A. : Passivation and its stability on copper in alkaline solutions containing carbonate and chloride ions. Corrosion Science, 31, 287-296, 1990 https://doi.org/10.1016/0010-938X(90)90121-K
  7. 서울특별시 : 옥내급수관 및 저수조 관리개선방안 보고서. 2005
  8. Edwards, M., Hidmi, L. and Gladwell, D. : Phosphate inhibition of soluble copper corrosion by-product release. Corrosion Science, 44, 1057-1071, 2002 https://doi.org/10.1016/S0010-938X(01)00112-3
  9. Edwards, M., Ferguson, J. F. and Reiber, S. H. : On pitting corrosion of copper. Journal of American Water Works Association, 86(7), 74-90, 1993
  10. 이윤진, 남상호 : 상수도 배급수관망의 부식방지를 위한 인산염계 방청제 적용에 관한 연구. 한국환경위생학회지, 29(3), 65-71, 2003
  11. Cruse, H. and Pomeroy, R. D. : Corrosion of copper pipes. Journal of American Water Works Association, 67(8), 479-485, 1974
  12. Ferguson, J. F., O. van Franque and Schock, M. R. : Internal corrosion of water distribution system: Corrosion of copper in portable water system. American Water Works Association Research Forum, DVGWTechnologiezenfrum Wasser, 233, 1996
  13. 우달식, 명복태, 문정기, 문광순 : 부식억제제를 이용한 Pilot Plant에서의 제철소 개방순환형 냉각시스템 부식제어에 관한 연구. 대한환경공학회지, 26(10), 1150-1157, 2004
  14. Drog owska, M., Brossard, L . and Menard, H. : Copper dissolution in $NaHCO_3$ and $NaHCO_3$ + NaCl aqueous solutions at pH 8. Journal of Electrochemical Society, 139, 39-47, 1992 https://doi.org/10.1149/1.2069196

Cited by

  1. Structural Analysis of Tension Controller Spring vol.10, pp.1, 2009, https://doi.org/10.5762/KAIS.2009.10.1.001
  2. A study on the corrosion characteristics of carbon steel pipes by phosphate corrosion inhibitor vol.9, pp.2, 2008, https://doi.org/10.5762/KAIS.2008.9.2.493
  3. Development of Corrosion Evaluation Index Calculation Program of Raw Water and Evaluation on Corrosivity of Tap Water using the Calcium Carbonate Saturation Index vol.10, pp.1, 2009, https://doi.org/10.5762/KAIS.2009.10.1.177
  4. Corrosivity evaluation of SWRO membrane desalted permeate vol.18, pp.1, 2014, https://doi.org/10.1007/s12205-014-0161-7