Environmental Engineering Research

  • 제14권3호
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  • Pages.195-199
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  • 2009
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  • 1226-1025(pISSN)
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  • 2005-968X(eISSN)
대한환경공학회 (Korean Society of Environmental Engineers)
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Effect of Dissolved Oxygen (DO) on Internal Corrosion of Water Pipes

  • Jung, Hae-Ryong (Korea Radioactive Waste Management Corporation, Radwaste R&D Center) ;
  • Kim, Un-Ji (Changwon National University, Environmental Engineering) ;
  • Seo, Gyu-Tae (Changwon National University, Environmental Engineering) ;
  • Lee, Hyun-Dong (Korea Institute of Construction Technology, Advanced Environment Technology Division) ;
  • Lee, Chun-Sik (Jinju National University, Environmental Engineering)
  • 발행 : 2009.09.30
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초록

A series of laboratory-scale corrosion experiments was carried out to observe the effect of dissolved oxygen (DO) in the presence of other water quality parameters, such as hardness, Cl-, and pH using various pipe materials. In addition, a simulated loop system was installed at a water treatment plant for pilot-scale experiment. Laboratory-scale experiment showed that corrosion rates for galvanized steel pipe (GSP), carbon steel pipe (CSP), and ductile cast iron pipe (DCIP) were decreased to 72%, 75%, and 91% by reducing DO concentration from 9${\pm}$0.5 mg/L to 2${\pm}$0.5 mg/L. From the pilot scale experiment, it was further identified that the average ionization rate of zinc in GSP decreased from 0.00533 to 0.00078 mg/$cm^2$/d by controlling the concentration of DO. The reduction of average ionization rate for copper pipe (CP) and stainless steel pipe (SSP) were 71.4% for Cu and 63.5% for Fe, respectively. From this study, it was concluded that DO could be used as a major parameter in controlling the corrosion of water pipes.

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참고문헌

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피인용 문헌

  1. Corrosion of Water Pipes: a Comprehensive Study of Deposits vol.11, pp.05, 2012, https://doi.org/10.4236/jmmce.2012.115034
  2. Effects of advanced treatments using granular activated carbon adsorption with ozonation and ultrafiltration on chlorine decay vol.52, pp.4-6, 2014, https://doi.org/10.1080/19443994.2013.827319
  3. Distribution system water age can create premise plumbing corrosion hotspots vol.187, pp.9, 2015, https://doi.org/10.1007/s10661-015-4747-4
  4. Preliminary Investigation of the Corrosion Behavior of Proprietary Micro-alloyed Steels in Aerated and Deaerated Brine Solutions vol.26, pp.12, 2017, https://doi.org/10.1007/s11665-017-3031-x
  5. A corrosion evaluation of mild carbon steel in reclaimed refinery stripped sour water vol.272, pp.None, 2009, https://doi.org/10.1016/j.jenvman.2020.111080
  6. Analysis of early failure of galvanised borewell pipe vol.133, pp.None, 2009, https://doi.org/10.1016/j.engfailanal.2021.105957