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Study on corrosion characteristics of treatment plants in Korea

국내 정수장의 부식성 특성 연구

  • Min, Byung-dae (Water Supply and Sewerage Research Division, National Institute of Environmental Research Environmental Research Complex) ;
  • Chung, Hyen-mi (Water Supply and Sewerage Research Division, National Institute of Environmental Research Environmental Research Complex) ;
  • Lee, Lee-nae (Water Supply and Sewerage Research Division, National Institute of Environmental Research Environmental Research Complex) ;
  • Choi, Inchol (Water Supply and Sewerage Research Division, National Institute of Environmental Research Environmental Research Complex) ;
  • Ahn, Kyunghee (Water Supply and Sewerage Research Division, National Institute of Environmental Research Environmental Research Complex) ;
  • Park, Ju-hyun (Water Supply and Sewerage Research Division, National Institute of Environmental Research Environmental Research Complex)
  • 민병대 (국립환경과학원 상하수도연구과) ;
  • 정현미 (국립환경과학원 상하수도연구과) ;
  • 이이내 (국립환경과학원 상하수도연구과) ;
  • 최인철 (국립환경과학원 상하수도연구과) ;
  • 안경희 (국립환경과학원 상하수도연구과) ;
  • 박주현 (국립환경과학원 상하수도연구과)
  • Received : 2016.09.22
  • Accepted : 2016.11.30
  • Published : 2016.12.23

Abstract

In order to prevent secondary pollution of tap water, corrosion characteristics are investigated, and corrosion index are calculated using LI and LR to manage corrosiveness. As targeted water treatment plants from 2014 (July, once) to 2015 (July and October, 2 times), 70 plants are selected by making a division for each area and water system. (treated water samples, n=240, raw water samples, n=72). In result of pH analysis, treated water was lower than raw water to 7.12, and 7.29, respectively. LI were investigated in the order of Seomjin river, Nakdong river, Han river, Geum river, to -2.08, -1.24, -1.11, -1.10 (at raw water), and -2.18, -1.59, -1.51, -1.35 (at treated water), respectively. In case of water quality goal value (LI = -1) in Japan as control of corrosiveness, management object was investigated about 83.3%.

Keywords

References

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