Journal of Korean Society of Water and Wastewater (상하수도학회지)

The Korean Society of Water and Wastewater (대한상하수도학회)
권호 표지

Characteristics and Improvement of Tap Water Corrosivity in Korea

국내 수돗물의 부식성 특성 및 개선방안

  • Published : 2011.10.15
Download PDF
⟨ Previous Next ⟩

Abstract

To investigate corrosivity characteristics of tap water in Korea, Langelier index (LI) of 30 multi-regional water treatment plants (WTPs) were evaluated. Weekly LI values of 30 WTPs were all negative, which means tap water in Korea might be very corrosive. Maximum LI decrease through water treatment processes was 0.95 under no additional corrosion control process. Based on the correlation results between LI and tap water qualities, pH and calcium concentration were confirmed as major parameters for LI control. Addition of calcium hydroxide with $CO_{2}$ or calcium hydroxide or sodium hydroxide can be chosen based on water quality. Continuous monitoring of LI and related parameters is recommended in water distribution system.

Keywords

References

  1. 김영관, 김진근 (2011) 음용수질의 안정성을 위한 부식지수제도의 도입, 상하수도학회지, 25(5). pp. 707-717
  2. 김진근, 이송희, 김재원 (2010) 급속여과공정에서 여과수질 저하원인 및 개선방안, 상하수도학회지, 24(3), 333-339.
  3. 동경도 수도국 홈페이지 (2011) http://www.waterworks.metro.tokyo.jp
  4. 이승재, 이상은, 김종곤, 박희경 (2011) 맛있는 물 지표 개발을 통한 국내 약수 평가, 상하수도학회지, 25(2) pp. 7-14.
  5. 정원석, 김진근, 박덕준, 김선욱, 정상기 (2011) 소석회와 이산화탄소를 이용한 수돗물 부식성 제어에 관한 연구, 상하수도학회지, 25(2) pp. 193-199.
  6. 환경부 (2010) 상수도시설기준.
  7. 환경부 (2011) 먹는물 수질관리 지침.
  8. AWWA (1986) Corrosion control for operators.
  9. AWWARF and VGW-TZW (1996) Internal corrosion of water distribution systems, AWWARF.
  10. EPA homepage (2011) http://water.epa.gov/drink/contaminants/index.cfm
  11. Mays, L.W (2000) Water Distribution Handbook. Mc-Graw Hill, New York.
  12. Kawamura, S. (2000) Integrated Design and Operation of Water Treatment Facilities. John Wiley & Sons, Inc., New York.
  13. K-water (2010) 정수처리시설 종합개선계획 보완.
  14. K-water (2009) 250항목 물질특성 정보.
  15. Sarin, P. Snoeyink, V.L., Bebee, J., Kriven, W.M., and Clement, J.A. (2001) Physico-chemical characteristics of corrosion scales in old iron pipes, Wat. Res., 35(12) pp. 2961-2969. https://doi.org/10.1016/S0043-1354(00)00591-1
  16. Schock, M.R. (1999) Internal corrosion and deposition control in Water Quality and Control 5th Ed. Mc-Graw Hill, New York.