수도관 부식에 대한 잔류염소 농도 영향 및 부식제어 방안
Effect of Residual Chlorine Concentration on Water Pipe Corrosion and Corrosion Control Plan
2
조회
0
다운로드
5
인용
0
참고문헌
키워드
초록
Langelier Index (LI) is used as a tap water corrosiveness index. Residual chlorine in tap water inducescorrosion inside water pipes. This study takes a deeper look into the effect of residual chlorine inwater pipes. Comparison between tap waters of Y and K water treatment plant (WTP) shows thatthe LI index of K WTP is lower than that of Y. However, the corrosion rate of Y WTP is higherthan that of K WTP. This means that the higher the concentration of residual chlorine in tap water,the higher the corrosion rate of pipe materials. When calcium hydroxide was added to tap water,the corrosiveness index was improved and thus the corrosion rate reduced. It is possible to increasethe disinfection efficiency by increasing the duration of residual chlorine and suppressing the rustgeneration of water pipes and to supply minerals. A guideline for corrosion control with residual chlorineshould be set up. The effects of residual chlorine should be included in the corrosiveness index oftap water.
Abstract
Langelier Index (LI) is used as a tap water corrosiveness index. Residual chlorine in tap water inducescorrosion inside water pipes. This study takes a deeper look into the effect of residual chlorine inwater pipes. Comparison between tap waters of Y and K water treatment plant (WTP) shows thatthe LI index of K WTP is lower than that of Y. However, the corrosion rate of Y WTP is higherthan that of K WTP. This means that the higher the concentration of residual chlorine in tap water,the higher the corrosion rate of pipe materials. When calcium hydroxide was added to tap water,the corrosiveness index was improved and thus the corrosion rate reduced. It is possible to increasethe disinfection efficiency by increasing the duration of residual chlorine and suppressing the rustgeneration of water pipes and to supply minerals. A guideline for corrosion control with residual chlorineshould be set up. The effects of residual chlorine should be included in the corrosiveness index oftap water.
참고문헌 (17)
- T. S. Munasinghe, , Ceylon J. Sci., 46, pp.99~ (2017)[DOI]
- A. H. Tuthill, , Reprinted from Mater. Performance, 37, pp.52~ (1998)
- 2014 Water Quality Monitoring Items Report, "K. Y. Song", Seoul Water Institute, ~, pp.WQR-791(2014.4.7.) (2014)
- 2014 Water Quality Monitoring Items Report, "K. Y. Song", Seoul Water Institute, ~, pp.WQR-3401(2014.7.8.) (2014)
- 2014 Water Quality Monitoring Items Report, "K. Y. Song", Seoul Water Institute, ~, pp.WQR-5755(2014.10.6.) (2014)
- 2015 Water Quality Monitoring Items Report, "H. S. Kwon", Seoul Water Institute, ~, pp.DEC-20(2016.1.6.) (2016)
- "ASTM Standards G1, Standard Practice for Preparing, Cleaning, and Evaluating, Corrosion Test Specimens", ~ (1996)
- D. A. Jones, "Principles and Prevention of Corrosion", pp.1~572 (1996), Prentice Hall
- M. L. Bum, , pp.2013
- H. K. Yun, , pp.2016
- Y. B. Park, , Proc. The CSSK Spring Meeting and Erosion Corrosion Symposium.Forum, pp.54~55 (2017), CSSK
- Y. B. Park, , Proc. 2009 Spring Meeting and Power Plant Symposium, pp.61~ (2009), CSSK
- AWWARF, "Internal Corrosion of Distribution Systems", pp.406~ (1996), Amer Water Works Assn
- 박영복, "수돗물 부식성 제어를 통한 수도관 부식방지 : 부식억제제별 효과와 영향에 대한 분석", CORROSION SCIENCE AND TECHNOLOGY, 15(6), pp.303~310 (2016), 한국부식방식학회[DOI]
- Study of the Secondary Contamination in the Water Distribution Pipeline, "S. J. Yu", National Institute of Environmental Research, ~ (2008)
- 안재찬, "배급수계통의 잔류염소 감소 특성 및 적용연구", 상하수도학회지, 19(4), pp.487~496 (2005), 대한상하수도학회
- L. McNeill, , Jour. AWWA, 93, pp.88~ (2001)