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Distribution characteristics of heterotropic bacteria population in slow sand filters  

Park, Jong-Geun (대구대학교 환경교육과)
Kim, Seong-Su (한국수자원공사)
Publication Information
Journal of Korean Society of Water and Wastewater / v.23, no.1, 2009 , pp. 23-30 More about this Journal
Abstract
Slow sand filtration (SSF) was the first engineered/mechanical filtration process used in drinking water treatment. In SSF, untreated water slowly percolate through a bed of porous sand. Biological activity within the sand bed have the strongest influence on removal efficiency of pollutants by slow sand filtration. In this study, the microbial population distributions in slow sand filters operated at the various operation conditions was evaluated. The concentrations of $10^4$ to $10^5$ CFU per g dry wt. were observed. No significant differences were seen between the number of filter-covered materials. The data indicate that the temperature has affect on population distribution. Also, the light exposure was influenced on microorganism in slow sand filtration according to the heterotropic plate counts. The role of microorganism within the sand media requires further study.
Keywords
slow sand filtration; biological skin; Schmutzdecke; Heterotropic bacteria;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
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