가정오수의 오염물질 존재형태별 구성비 및 생분해성 = Biodegradability and Component Ratio of Existing Forms of Pollutants in Raw Domestic Sewage

다국어 초록 (Multilingual Abstract)

This study was performed in order to calculate organic compound ratio and biological decomposition rate coefficient by biodegradability test on raw domestic sewage.
Concentration of DOC, POC, TOC, BOD, COD_Mn from 965 nationwide raw domestic sewage samples were 52.8 mg/L, 54.9 mg/L, 53.3 mg/L, 106.1 mg/L, 76.4 mg/L. Composition rate of TOC/BOD was 0.7 for Han river, 0.7 for Geum river, 0.6 for Nakdong river, 0.77 for Yeongsan river and average composition rate was 0.65. And Composition rate of TOC/COD_Mn was 1.5 for Han river, 1.37 for Geum river, 1.33 for Nakdong river, 1.48 for Yeongsan river with average rate of 1.39.
Results of biodegradability test from 20 site in Han and Geum river, removal rate was 90.3% for BOD, 83.4% for TOC and 78.5% for COD_Mn. Composition rate of TOC/BOD, TOC/COD_Mn and COD_Mn/BOD was 0.54, 0.93 and 0.58 before treatment, but after 20 days of biological treatment, rate changed to 0.94, 0.73 and 1.28. Biological decomposition coefficient, K_TOC, K_BOD, K_COD, by biological decay was calculated to be 0.1028, 0.1245 and 0.0950.

참고문헌 (Reference)

1 이부한, "활성탄의 질산성질소 흡착에 대한 동역학적 해석" 한국환경기술학회 15 (15): 278-283, 2014

2 유병로, "갑천호수 저서퇴적물에서의 현장 산소요구량 산정" 한국환경기술학회 13 (13): 301-308, 2012

3 Krasner, S. W., "The occurrence of disinfection by-products in US drinking water" 81 : 41-53, 1989

4 Han, J. S., "Measurement of organic carbon and organic phosphorus decomposition rate in a eutrophic river-the Keum river, korea-" Graduate school, Kangwon National Univ 2007

5 Lee, Y. W., "Assessment of pollutant loads for raw sewage based on total organic carbon(TOC) is being required to apply TOC as an indicator in management of total maximum daily loads"

6 Ryu, B.R., "A Study on Sediment Environment of Sejong Weir" 61-64, 2012