Performance evaluation of enhanced SBR in simultaneous removal of nitrogen and phosphorous

BACKGROUND: Simultaneous nitrogen, phosphorous and COD removal in a pilot-scale enhanced Sequencing Batch Reactor (eSBR) was investigated. METHODS: The reactor consisted of a pre-anoxic zone and internal recycle and was fed with synthetic wastewater. The study was performed by operating the reactor...

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Detalles Bibliográficos
Autores principales: Jafarzadeh Ghehi, Tahereh, Mortezaeifar, Soheil, Gholami, Mitra, Rezaei Kalantary, Roshanak, Mahvi, Amir Hossein
Formato: Online Artículo Texto
Lenguaje:English
Publicado: BioMed Central 2014
Materias:
Research Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4237780/
https://www.ncbi.nlm.nih.gov/pubmed/25414795
http://dx.doi.org/10.1186/s40201-014-0134-2
Descripción
Sumario:BACKGROUND: Simultaneous nitrogen, phosphorous and COD removal in a pilot-scale enhanced Sequencing Batch Reactor (eSBR) was investigated. METHODS: The reactor consisted of a pre-anoxic zone and internal recycle and was fed with synthetic wastewater. The study was performed by operating the reactor in 6-hour cycles in three different operational modes during a time frame of 279 days. RESULTS: Under the best operational conditions, the average removal rate of COD, TN, and TP were obtained as 93.52, 88.31, and 97.56%, respectively. CONCLUSIONS: A significant denitrifying phosphorus removal (more than 80%) occurred at run1 and 3 which started the cycle under anoxic condition.

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