|
KMID : 0382420030290010019
|
|
Korean Journal of Environmental Health Society
2003 Volume.29 No. 1 p.19 ~ p.27
|
|
|
A study on Investigation of Fecal Contamination Indicator Bacteria for Management of Source Water Quality
|
|
Jang Hyun-Jeong
Lee Yung-Wook
|
|
|
Abstract
|
|
|
|
Coliforms is currently being used as the standard of environmental water quality to evaluate the level of source water quality especially condition of fecal contamination. However. not properly applied to water quality management. So in this study. in addition to Coliforms. fecal contamination indicator bacteria such as Fecal Coliforms(FC). E. coli. Fecal streptococci(FS), Clostridium and environmental parameters related with it’s distribution were investigated on a monthly basis in 6 water intakes of Han River. The mean of BOD. DO. SS and pH. benchmarks of source water management were maintained the second grade of environmental water quality standard applied to Han River but Coliforms exceeded it. Distribution of Coliforms ranged from 1.0× 10¹ to 2.7 10^5 CFU/m/. FC ranged from NO to 5.3×10³ CFU/m/. E mli ranged from ND to 9.2×10³ CFU/m/. FS ranged from ND to 2.5 ×10³ CFU/m/. they were steepy rise on July and August in common when rainfalls was heavy and water temperature was high. but Clostridium perfringens ranged from 1.7 × 10¹ to 1.7 × 10³ CFU/m/not fluctuate by month. Statistical analysis of sampling data showed that most significant correlations occurred among FC and Coliforms(r = 0.840). E. coli(r = 0.792). FS(r = 0.687) and environmental parameters(temperature, turbidity bidity. SS, color were all r > 0.60) while no significant correlation was observed between ammonia generally recognized fecal contamination indicator and bacteria. Identification of the coliforms showed that Enterobacter. Klebsiella, Cirtobacter were comprised of 32%. 240/c. 16% respectively. and E. coli were 7% of it. while E. coli was made up X5.9% of Fe. The mean value of FC/Coliforms ratio. 5.2(0.1~42) were higher in Amsa. Guui than Jayang. Fecal coliforms, as those are able to reflect more particularly the extent of the fecal contamination. were considered useful in deciding the level of water treatment while monitoring the fecal contamination from the source of water supply. Therefore. it is expected that the water quality is going to be managed more efficiently by using fecal coliforms supplementrarily to total coliforms which arecurrent standard item of water-quality environment.
|
|
|
KEYWORD
|
|
|
|
|
|
FullTexts / Linksout information
|
|
|
|
|
|
Listed journal information
|
|
|
|