수돗물 배급수 계통의 유리잔류염소농도에 따른 종속영양세균의 거동에 관한 연구

• 영문명: Heterotrophic Bacteria in Terms of Free Chlorine Residuals in water Distribution Systems
• 발행기관: 한국환경보건학회
• 저자명: 윤태호 이윤진 이옥재 이의광 김현 이동찬 남상호
• 간행물 정보: 『1. 한국환경보건학회지』제28권 제3호, 9~18쪽, 전체 10쪽
• 주제분류: 공학 > 환경공학
• 파일형태: PDF
• 발행일자: 2002.09.30

영문 초록

This study was to observe the occurrence of heterotrophic bacteria in terms of free chlorine residuals in two different water distribution systems belong to both K and Y water treatment plant. The data analyzed in this study showed that in distribution systems(DS), the free chlorine residuals were decreased from 0.10 to 0.56 ㎎/1 for K, and 0.51 and 0.78 ㎎/l for Y The decay of free chlorine were clearly higher in both March and August than those in January. The HPC in DS were ranged from 0 to 40 CFU/ml for K,0 to 270 CFU/ml for Y, on R2A medium. In particular, Its level was relatively high at consumers ground storage tanks, taps and point-of-end area of Y, The predominant genera found in the distribution systems were Acinetobacter, Sphingomonas (branch of Pseudomonas), Microroccus, Bacillus, Staphylococcus. The diversity of heterotrophic bacteria was increased in the end-point area. Most of them were either encapsulated cells or cocci of gram-positve. In conclusion, the point-of-end area in distribution systems showed that the longer flow distance from WTP the greater diversity and higher level of heterotrophic bacteria due to the significant decay of free chlorine residuals.

목차

ABSTRACT

Ⅰ.서론

Ⅱ.연구방법

Ⅲ.결과 및 고찰

Ⅳ.결론

참고문헌

키워드

Heterotrophic bacteria Chlorine residuals Distribution systems