부식억제제에 의한 상수도관의 피막 형성 및 수질개선 효과 = Coating formation of water supply pipes by inhibitor and water quality improvement effect

다국어 초록 (Multilingual Abstract)

To investigate the application of corrosion inhibitor on water supply pipes, turbidity, magnitude of corrosion, composition of scale and concentration of metals from an old steel pipe were analysed under inhibitor addition.
The concentration of turbidity, iron and copper from the pipes under inhibitor application was 12 ～ 14% of the case which no inhibitor was applied, which suggests the application of inhibitor was very effective for internal corrosion control.
In addition, SEM, EDX, XRD and XRF test results showed that application of inhibitor was effective for the decrease of iron concentration and increase of oxygen, phosphorus and calcium concentration, which suggested the existence of protective layer.
Therefore, the occurrence of red water will be significantly decreased when inhibitor was applied to the old steel pipes.

참고문헌 (Reference)

1 환경부, "환경부고시 제2007-92호"

2 한국상하수도협회, "수처리제의 적정 사용관리 방안 연구" 2008

3 유순주, "수돗물 수질에 따른 옥내급수관 부식에 미치는 영향분석" 한국물환경학회 24 (24): 701-708, 2008

4 정원석, "소석회와 이산화탄소를 이용한 수돗물 부식성 제어에 관한 연구" 대한상하수도학회 25 (25): 193-199, 2011

5 환경부, "상수도통계" 2011

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7 임재철, "노후 상수도관에 대한 인산염 부식억제제의 현장 적용성 연구" 서울시립대학교 도시과학대학원 2010

8 김진근, "국내 수돗물의 부식성 특성 및 개선방안" 대한상하수도학회 25 (25): 731-739, 2011

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