서울시 실내수영장의 소독방식별 부산물 생성 특성
Characteristics of Byproducts from Three Different Disinfection Technologies Applied to Indoor Swimming Pool in Seoul
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Swimming pool water needs to be disinfected to keep swimmer from infection caused by water-born pathogens. However, use of chlorine and other disinfectants such as ozone and electrolytic disinfectant for disinfecting swimming pool water create new potential risks by producing by-products during the disinfection process. This study was carried out to investigate the characteristics of formed in swimming pool water disinfection Three different disinfection technologies including chlorination, combined disinfection (ozone+chlorine), and electrolytic disinfection were applied and their DBPs were compared. The average concentrations of total trihalomethans (TTHMs) of technologies were 37.49 μg/L for electrolytic disinfection, 16.41 μg/L for chlorination and 7.37 μg/L for combined disinfection. The major TTHM compound was chloroform and its concentration was 16.41 μg/L (chlorination), 7.37 μg/L (combined disinfection) and 14.49 μg/L (electrolytic disinfection). Bromodichloromethan (BDCM), Dibromochloromethan (DBCM) and Bromoform (BF) were only detected in electrolytic disinfection. The average concentrations of Haloacetic acids (HAAs) was 226.82 μg/L for chlorination, 170.71 μg/L for electrolytic disinfection and 76.54 μg/L for combined disinfection. About 85 percent of total DBPs was HAAs consisting of Trichloroacetic acid (TCAA) and Dichloroacetic acid (DCAA). TCAA and DCAA accounted for 59% and 26% of total DBPs from chlorination, 53% and 30% from combined disinfection, 54% and 19% from electrolytic disinfection respectively. Also TTHMs accounted for 16% of DBPs from electrolytic disinfection, 6% from chlorination and 8% from combined disinfection respectively. Chloral hydrate (CH) and Haloacetonitriles (HANs) were not detected much : they were 6% and 2% of DBPs from chlorination, 4% and 2% from combined disinfection and 4% and 4% from electrolytic disinfection, respectively. The compositions of DBPs were similar in Three different disinfection technologies, its concentrations was related to organic matters
Abstract
Swimming pool water needs to be disinfected to keep swimmer from infection caused by water-born pathogens. However, use of chlorine and other disinfectants such as ozone and electrolytic disinfectant for disinfecting swimming pool water create new potential risks by producing by-products during the disinfection process. This study was carried out to investigate the characteristics of formed in swimming pool water disinfection Three different disinfection technologies including chlorination, combined disinfection (ozone+chlorine), and electrolytic disinfection were applied and their DBPs were compared. The average concentrations of total trihalomethans (TTHMs) of technologies were 37.49 μg/L for electrolytic disinfection, 16.41 μg/L for chlorination and 7.37 μg/L for combined disinfection. The major TTHM compound was chloroform and its concentration was 16.41 μg/L (chlorination), 7.37 μg/L (combined disinfection) and 14.49 μg/L (electrolytic disinfection). Bromodichloromethan (BDCM), Dibromochloromethan (DBCM) and Bromoform (BF) were only detected in electrolytic disinfection. The average concentrations of Haloacetic acids (HAAs) was 226.82 μg/L for chlorination, 170.71 μg/L for electrolytic disinfection and 76.54 μg/L for combined disinfection. About 85 percent of total DBPs was HAAs consisting of Trichloroacetic acid (TCAA) and Dichloroacetic acid (DCAA). TCAA and DCAA accounted for 59% and 26% of total DBPs from chlorination, 53% and 30% from combined disinfection, 54% and 19% from electrolytic disinfection respectively. Also TTHMs accounted for 16% of DBPs from electrolytic disinfection, 6% from chlorination and 8% from combined disinfection respectively. Chloral hydrate (CH) and Haloacetonitriles (HANs) were not detected much : they were 6% and 2% of DBPs from chlorination, 4% and 2% from combined disinfection and 4% and 4% from electrolytic disinfection, respectively. The compositions of DBPs were similar in Three different disinfection technologies, its concentrations was related to organic matters
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