Total nitrogen removal in membrane sequencing batch bioreactor treating domestic wastewater
| Autor: | Belli, Tiago José, Coral, Lucila Adriani, Recio, Maria Angeles Lobo, Vidal, Carlos Magno de Sousa, Lapolli, Flávio Rubens |
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| Jazyk: | angličtina |
| Rok vydání: | 2014 |
| Předmět: | |
| Zdroj: | Acta Scientiarum: Technology, Vol 36, Iss 2, Pp 221-227 (2014) Acta Scientiarum. Technology; Vol 36 No 2 (2014); 221-227 Acta Scientiarum. Technology; v. 36 n. 2 (2014); 221-227 Acta scientiarum. Technology Universidade Estadual de Maringá (UEM) instacron:UEM |
| ISSN: | 1807-8664 1806-2563 |
| Popis: | This study aimed to evaluate the performance of a sequencing batch membrane bioreactor (SBMBR) in wastewater treatment for total nitrogen removal. The reactor, which was built on a pilot scale with a volume of 30 L, was operated for 154 days and fed with synthetic wastewater. The SBMBR was operated under a sequencing batch regime with a total cycle time of 4 hours, which was broken down into 5 min. at the feeding stage, 55 min. of an anoxic phase and 180 min. of aeration and filtration. The permeation flux used was 5.55 L m-2 h-1. The membrane bioreactor presented very efficient biological wastewater treatment, with COD, ammoniacal nitrogen and total nitrogen removal efficiency of 99, 98 and 96%, respectively. The high total nitrogen removal observed indicates that the SBMBR was able to promote effective nitrification and denitrification, with a concentration below 10 mg L-1 of this parameter in the permeate. |
| Databáze: | OpenAIRE |
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