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KMID : 0382420000260030069
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Korean Journal of Environmental Health Society
2000 Volume.26 No. 3 p.69 ~ p.75
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A Study on the Removal of Nitrogen and Phosphorus Depending on Existence of Cilia Media in Sewage in Anaerobic-Anoxic-Oxic Process
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Park Tae-Jin
Jeong Mun-Ho
Kim Young-Kyu
Cho Il-Hyoung
Lee Jung-Min
Song Kyoung-Seok
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Abstract
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This study was carried out to investigate the removal of nitrogen and phosphorus in municipal sewage according to the variation of volumetric ratio in the reactor. It also was performed to provide basic data necessary to the development and improvement of the process which is Anaerobic-Anoxic-Oxic(A_2O). In the removal of BOD and COD, the best efficiency of the process showed in the condition of using the media, 1Q of internal recycle rate and 1:3:2 of the volumetric ratio in Anaerobic-Anoxic-Oxic process. In most cases, nitrogen and phosphorus removal efficiency of the process using the cilia media was superior to that of the process which didn´t use the media. In the removal of T-N and T-P, the best efficiency of the process showed in the condition of using the media, 1Q of internal recycle rate and 1:3:2 of the volumetric ratio in Anaerobic-Anoxic-Oxic process.
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