지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
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초록· 키워드
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Three water treatment plants(WTPs) in Jeju island whose source water have different characteristics from those of the mainland of Korea were investigated. Coefficients of bulk water decay($k_b$) of free chlorine at $5^{\circ}C$ for ES, GJ, NW WTPs were $-0.003hr^{-1}$, $-0.002hr^{-1}$ and $-0.001hr^{-1}$ respectively based on bottle tests. To simulate the free chlorine variations in the distribution system using EPANET, ES WTP was chosen. Free chlorine concentrations of several sites were less than the drinking water quality standards(i.e., 0.1 mg/L); E5(0.03 mg/L), E6(0.02 mg/L), W21(0.02 mg/L) and W25(0.03 mg/L). To maintain more than 0.1 mg/L of free chlorine in the distribution system, at least 1.9 mg/L of chlorine was needed at the WTP, which suggested rechlorination was needed to supply palatable tap water to customers. Two sites, one that diverged into E5 and E6 in the east-line and another located before E21 in the west-line were selected for the appropriate rechlorination locations. The recommended rechlorination dosages were 0.42 mg/L for the east and 0.27 mg/L for the west. The simulated results indicated that the free chlorine could be reduced to 0.4 mg/L at the WTP with rechlorination, and taps with excessive free chlorine could be more stabilized(i.e., 0.1~0.4 mg/L).
목차
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참고문헌 (20)
참고문헌 신청
안재찬 / 2007 / 배급수계통에서 잔류염소 및 THMs 분포 예측에 관한 연구 / 대한환경공학회지 29(6):706~714
차준호 / 2012 / 제주시 상수도 관망 블록시스템 구축을 통한 누수 저감 / 상하수도학회지 26(5):693~703
Fisher, I / 2011 / Evaluation of suitable chlorine bulk-decay models for water distribution systems / Wat. Res 45:4896~4908
Hallam , N.B / 2002 / The decay of chlorine associated with the pipe wall in water distribution systems / Wat. Res 36:3479~3488
Jeju special self-governing province
차준호 / 2012 / 제주시 상수도 관망 블록시스템 구축을 통한 누수 저감 / 상하수도학회지 26(5):693~703
Fisher, I / 2011 / Evaluation of suitable chlorine bulk-decay models for water distribution systems / Wat. Res 45:4896~4908
Hallam , N.B / 2002 / The decay of chlorine associated with the pipe wall in water distribution systems / Wat. Res 36:3479~3488
Jeju special self-governing province
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