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A Study on the Improvement of Treatment Efficiency for Nitrogen and Phosphorus in Livestock Treatment System Using Constructed Wetlands
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 Title & Authors
A Study on the Improvement of Treatment Efficiency for Nitrogen and Phosphorus in Livestock Treatment System Using Constructed Wetlands
Seo, Dong-Cheol; Park, Jong-Hwan; Kim, Ah-Reum; Kim, Sung-Hun; Lee, Seong-Tea; Jeong, Tae-Uk; Choi, Jeong-Ho; Lee, Sang-Won; Kim, Hyun-Ook; Cho, Ju-Sik; Heo, Jong-Soo;
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 Abstract
To improve T-N and T-P removal efficiencies, removal efficiencies of pollutants in full-scale livestock wastewater treatment plant by natural purification method with water plant filtration and activated sludge beds were investigated under different re-injection rates and injection methods of livestock wastewater. The removal rates of COD, SS, T-N, and T-P in effluent in full-scale livestock wastewater treatment plant were in the order of 30% < 70% 100 % at different re-injection rates. The removal rates of pollutants in effluent in full-scale livestock wastewater treatment plant were higher as re-injection rate of livestock wastewater increased. Removal rates of COD, SS, T-N, and T-P by continuous injection were slightly higher than those by intermittent injection method in full-scale livestock wastewater treatment plant. Removal rates of COD, SS, T-N, and T-P by continuous injection method in full-scale livestock wastewater treatment plant with water plant filtration and activated sludge beds were 99.5, 99.8, 99.0 and 99.8%, respectively.
 Keywords
Constructed wetland;Natural purification method;Livestock wastewater;Water plant filtration;Activated sludge;T-N;T-P;
 Language
Korean
 Cited by
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