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Performance of Night Soil Treatment Plant using B3(Bio-Best-Bacillus) System  

Seo, Yun-Ha (울산광역시 여천위생처리장)
Lee, Jung-Bong (울산광역시 여천위생처리장)
Choi, Sung-Yong (울산광역시 여천위생처리장)
Kim, Deug-Ho (울산광역시 여천위생처리장)
Kim, Jin-Hwan (울산광역시 여천위생처리장)
Byeun, Jeung-Bok (울산광역시 천상정수처리장)
Publication Information
Journal of Korean Society of Water and Wastewater / v.24, no.4, 2010 , pp. 407-412 More about this Journal
Abstract
The purpose of this study was to investigate removal efficiencies of contaminants in night soil treatment plant using the B3 system. The samples were collected from retaining tank and settlement tank in Yechon night soil plant. We experimented concentrations of BOD, COD, SS, TN and TP. Concentration data were processed using removal efficiencies by season and correlation analysis with pilot running parameters. Removal efficiencies of total organic carbon was over 96%, TN was 98% during summer, 80.9% during winter. In the case of TP, the highest removal efficiencies was 94.1% during fall and the lowest removal efficiencies was 82% during spring. Results of correlation analysis showed two positive correlation groups and one negative group. Positive correlations were among temperature, BOD and TN. The others were pH, BOD, COD, SS, TN and TP. Negative correlation were among MLSS, BOD, COD, SS, TN, TP.
Keywords
B3 system; night soil treatment plant; removal efficiencies; total organic carbon; TN; TP; correlation analysis;
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