브롬이온을 함유한 상수 원수에 이산화염소 주입시 THM생성거동에 관한 연구

• 영문명: Trihalomethane Formation by Chlorine Dioxide in Case of Water Containing Bromide Ion
• 발행기관: 한국환경보건학회
• 저자명: 이윤진(Lee, Yoon-Jin) 이환(Lee, Hwan) 남상호(Nam, Sang-Ho)
• 간행물 정보: 『한국환경보건학회지』제25권 제3호, 83~88쪽, 전체 6쪽
• 주제분류: 공학 > 환경공학
• 파일형태: PDF
• 발행일자: 1999.09.30

영문 초록

This study was carried out to examine the behavior of THM formation in water treated with chlorine dioxide where humic acid was used as THM precursor. THM was not detected in bromide-free water, but formed in water containing bromide. When 10 mg/l of chlorine dioxide was added to water containing 5 mg/l of humic acid and bromide respectively, 20.46 μg/l of THM was formed. It is postulated that chlorine dioxide oxidize bromide to hydrobromous acid, which subsequently reacted with humic acids similar to chlorine reaction. The formation of THM could be reduced at low pH. Among THM formed, CHBr3 was the predominant species in the alkaline solution, while CHCl3 in the acidic solution. A sample pretreated with chlorine dioxide for 24h before addition of chlorine showed a reduction of 75.1% in THM formation, compared with a sample not pretreated with chlorine dioxide and a sample treated by chlorine for 24h prior to addition of chlorine dioxide also showed a reduction of 37.8% in THM formation, compared with a sample not added with chlorine dioxide. It may explain that chlorine dioxide oxidizes directly a fraction of THM.

목차

Ⅰ. 서론

Ⅱ. 재료 및 방법

Ⅲ. 결과 및 고찰

Ⅳ. 결론

참고문헌

키워드

Chlorine dioxide Bromide THM