SBR performance for synthetic and fishery wastewater treatment

• Author(s): Mesquita, D. P. ; Ribeiro, R. R. ; Teixeira, D. ; Ferreira, E. C. ; Coelho, M. A. Z.
• Date: 2008
• Persistent ID: http://hdl.handle.net/1822/7951
• Origin: RepositóriUM - Universidade do Minho
• Subject(s): SBR; Synthetic wastewater; Fishery wastewater; Settleability
• Document Type: Conference Object
• Language: English

Description

The evaluation of a SBR performance treating synthetic and fishery wastewater was performed. Without salt addition, COD and ammonia removal rates over than 50% were obtained, indicating the occurrence of the first nitrification step and COD removal. With 0.5% salt, removal rates lower than 60% were attained, for ammonia removal efficiency probably due to ionic strength changes and cellular plasmolysis leading to inactivation of the nitrification organisms. The SBR performance was greater for synthetic wastewater, due to the inherent and controlled characteristics. For both, lower SVI were achieved as a valuable indicator towards the assessment of the aggregated biomass structure.