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http://dx.doi.org/10.5389/KSAE.2011.53.6.137

Characteristics of Pollution Loads from the Combined Sewer during Dry Season  

Won, Chul-Hee (강원대학교 지역건설공학과)
Choi, Yong-Hun (강원대학교 지역건설공학과)
Park, Woon-Ji (강원대학교 지역건설공학과)
Shin, Min-Hwan (강원대학교 지역건설공학과)
Choi, Joong-Dae (강원대학교 지역건설공학과)
Publication Information
Journal of The Korean Society of Agricultural Engineers / v.53, no.6, 2011 , pp. 137-144 More about this Journal
Abstract
We have examined the pollutant load of combined sewer in dry days. Two monitoring sites (C-1, C-2) were equipped with an flowmeter. Monitoring was conducted from September 2004 to April 2006 for 20 months during dry days. Flowrate and concentration of pollutants are lowest from 3 to 6 o'clock, and it is high at 9, 12 and 21 o'clock. Most of organic matters exist in the dissolved state. The results show that pollution loads in C-2 area were 4.5-7.2 times higher than in C-1. Pollutant loads were high on Saturdays. Pollutant loads (kg/ha/day) of C-2 were 1.1-3.1 times higher those of C-1. However there was no significant difference in winter. Analysis of correlation coefficient of water quality parameter indicates that besides of flowrate all items in C-1 site have tight relationship respectively (p<0.01). In C-2 site, correlation coefficient of TP-SS, TP-TN, TP-flowrate, BOD-flowrate, BOD-SS and TN-TP are statistically significant (p<0.01).
Keywords
Combined sewer; pollutant load; correlation coefficient;
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Times Cited By KSCI : 6  (Citation Analysis)
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