This study focuses on the enhancement of aerobic granulation and biological nutrient removal maintenance treating domestic wastewater. Two sequencing batch reactors (SBRs) were inoculated with either only floccular sludge (100%-floc SBR) or supplemented with 10% crushed granules (90%-floc SBR). Granules developed in both reactors. The 100%-floc SBR achieved 75% of nitrogen and 93% of phosphorus removal at the end of the performance, but some floccular sludge remained in the system. The 90%-floc SBR became fully granulated and finished with 84% and 99% of nitrogen and phosphorus removal, respectively. Regarding biological phosphorus removal, nitrite was identified as an inhibitor of the process. Nitrite levels lower than 5mgN-NO2-L -1 were used for anoxic phosphate uptake while higher concentrations inhibited the process. © 2011 Elsevier Ltd.
CITATION STYLE
Coma, M., Verawaty, M., Pijuan, M., Yuan, Z., & Bond, P. L. (2012). Enhancing aerobic granulation for biological nutrient removal from domestic wastewater. Bioresource Technology, 103(1), 101–108. https://doi.org/10.1016/j.biortech.2011.10.014
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