Journal of Korean Society on Water Environment (한국물환경학회지)
- Volume 18 Issue 3
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- Pages.291-301
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- 2002
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- 2289-0971(pISSN)
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- 2289-098X(eISSN)
Effects of mixing/aeration ratio and SRT on nutrient removal in SBR process
연속회분식반응조 공정에서 교반/폭기비와 SRT가 영양염류제거에 미치는 영향
- Jeon, Seok-Jun (Korea National Housing Cooperation) ;
- Kim, Han-Soo (Environment Technology)
- Published : 2002.09.30
Abstract
In this study, nutrients treatment by sequencing batch reactors(SBR) was performed. Nitrogen and phosphorus removal efficiencies were evaluated by changing SRT and mixing/aeration ratio. Not only nitrogen but also phosphorus removal patterns were investigated through track studies on 1 cycle. As SRT was fixed and mixing/aeration ratio was changed, maximum nitrogen removal efficiency was 87.6% at mixing/aeration ratio 0.67. Phosphorus removal efficiencies were more than 85.5% except no mixing condition. As mixing/aeration ratio was fixed and SRT was changed, nitrogen removal efficiencies were 70.5~79.8%, which represented slight changes, while phosphorus removal efficiencies were 49.0~97.3%, which represented sharply decreasing tendency at less than 20 day. Both phosphorus release rate k and maximum phosphorus release rate