Journal of Korean Society on Water Environment (한국물환경학회지)

Korean Society on Water Environment (한국물환경학회)
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Characteristics of Chlorination Byproducts and Aldehyde Occurrence in Bottled Tap Water

수돗물 병입수 중 염소소독부산물 및 aldehyde의 발생 특성

  • Lee, Youn-Hee (Drinking Water & Sewerage Research Division) ;
  • Park, Ju-Hyun (Drinking Water & Sewerage Research Division) ;
  • Kim, Hyun-Koo (Soil & Groundwater Research Division, National Institute of Environmental Research) ;
  • Ahn, Kyung-Hee (Drinking Water & Sewerage Research Division) ;
  • Kim, Tae-Seung (Soil & Groundwater Research Division, National Institute of Environmental Research) ;
  • Kim, Dong-Hoon (Monitoring and Analysis Division, Han River Basin Environmental Office) ;
  • Kwon, Oh-Sang (Drinking Water & Sewerage Research Division)
  • 이연희 (국립환경과학원 상하수도연구과) ;
  • 박주현 (국립환경과학원 상하수도연구과) ;
  • 김현구 (토양지하수연구과) ;
  • 안경희 (국립환경과학원 상하수도연구과) ;
  • 김태승 (토양지하수연구과) ;
  • 김동훈 (한강유역환경청 측정분석과) ;
  • 권오상 (국립환경과학원 상하수도연구과)
  • Published : 2012.09.30
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Abstract

Several drinking water treatment plants (DWTPs) produce the bottled tap waters (BTWs) as pilot production and provide them for noncommercial use. In 2008, acetaldehyde and chloral hydrate were detected in some BTWs and the public worry over the safety of the water. In this study, the BTWs produced from 7 DWTPs were tested for 13 chemicals including disinfection byproducts (DBPs). The level of four trihalomethanes (THMs) were increased up to 15 days. The average concentration of them was 0.0075 mg/L at the time of bottling and it was increased to 0.0214 mg/L after 15 days. The average acetaldehyde concentration was 0.0406 mg/L at the time of bottling but it was went up to 0.2251 mg/L after 11 days and then decreased. Although the initial concentrations of DBPs were below the drinking water standard, we also traced them at different storage conditions. Temperature affected the formations of THMs and acetaldehyde concentrations significantly. While the average concentration of THMs ranged from 0.0113 to 0.0182 mg/L at $25^{\circ}C$, it was increased to 0.0132 ~ 0.0256 mg/L at $50^{\circ}C$. In case of acetaldehyde, concentration ranged from 0.0901 to 0.2251 mg/L at $25^{\circ}C$, it was increased to 0.3394 ~ 1.0591 mg/L at $50^{\circ}C$. Throughout the tests with 7 BTWs samples, none of the chemicals was exceeded the drinking water standard of Korea. Therefore, it is recommended to avoid the exposure of BTWs to sunlight or high temperature during distribution and storage.

Keywords

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