Abstract
The effect of carbon source addition on the operation of a sequencing batch reactor in order to remove nitrogen and COD of poultry wastewater was studied. The reactor was constructed with a glass tube having a volume of 7 l and a jacket for temperature control. The reactor bottom consisted of a conical porous stone in order to promote liquor aeration and agitation. Initial conditions and operation strategies were adjusted to improve the final effluent quality. According to the attained experimental results, it was verified that nitrification and denitrification can occur simultaneously in aerated culture, contrary the observation of some authors.
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Abbreviations
- C:
-
Carbon
- COD:
-
Chemical oxygen demand
- HRT:
-
Hydraulic residence time
- MLSS:
-
Mixed liquor suspended solids
- MLVSS:
-
Mixed liquor volatile suspended solids
- N:
-
Effluent nitrogen concentration
- NO x –N:
-
Nitrate + nitrite nitrogen concentrations
- P:
-
Phosphorus
- SAS:
-
Sludge addition strategy
- SBR:
-
Sequencing batch reactor
- SSS:
-
Sludge separation strategy
- TOC:
-
Total organic carbon
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Acknowledgements
The authors want to thank to The State of São Paulo Research Foundation (FAPESP) for financial support and to thank Eng. Luis Boneto (Abattoir “Pena Branca”, São Paulo, Brazil) for providing the wastewater samples used in this work.
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de Paula Moreira, M., Yamakawa, C.S., Perez, V.H. et al. Effect of addition of one carbon source on the operation of sequencing batch reactor in order to remove nitrogen and COD from poultry wastewater. World J Microbiol Biotechnol 24, 1937–1942 (2008). https://doi.org/10.1007/s11274-008-9701-y
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DOI: https://doi.org/10.1007/s11274-008-9701-y