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KMID : 1024519970060050521
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Journal of the Environmental Sciences
1997 Volume.6 No. 5 p.521 ~ p.529
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Study on Behavior of Organic, Nitrogen, and Phosphorus in the Sequencing Batch Reactor
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Han Gee-Baek
Park Dong-Keun
Lee Hae-Goon
Kim Chang-Won
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Abstract
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In the study, we Investigated the behavior and removal efficiency of organics, nitrogen. phosphorus with operating conditions in SBRs. Substrate used was synthetic wastewater in which the ratio of . : N : P was 100 : 12 : 2. The cycling the in SBRs was adjusted at 6 hours and 8 hours, and then certainly Included anaerobic and aerobic conditions. Also, for each cycling time. we performed 2 series of experiment simultaneously which was set up 10 days and 20 days as SRT. The removal efficiency of . was over 97% in all operating conditions. In the 6 hours cycling time, the removal efficiency of reached almost 100% in steady state. And then we could observe a typical phonemena of phosphorus release and uptake, and the removal efficiency of N was 67%, Residual N source was almost TKN and most of the rest remained as . Also the difference in both SRTs was not observed practically. In the 8 hours cycling time, dissolution of sludge appeared. and, $PO_4^{3-}-P was not nearly removed but nitrogen was removed up to 75%, And the residual nitrogen was accumulated as .
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KEYWORD
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Sequencing Batch Reactor, Cycling Time, Nitrification and Denitrification, Phosphorus Removal
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