Abstract
A pilot-scale liquid-solid circulating fluidized bed (LSCFB) bioreactor was employed for biological nutrient removal from municipal wastewater at the Adelaide Pollution Control Plant, London, Ontario, Canada. Lava rock particles of 600 μm were used as a biomass carrier media. The system generated effluent characterized by <1.0 mg NH4 N/L, <6.0 mg NO3 N/L, <1.0 mg PO4 P/L, <10 mg TN/L, and <10 mg SBOD/L at an influent flow of 5 m3 /d, without adding any chemicals for phosphorus removal and secondary clarification for suspended solids removal. The impact of the dynamic loading on the LSCFB effluent quality and its nutrient removal efficiencies were monitored by simulating wet weather condition at a maximum peaking factor of 3 for 4 h. The achievability of effluent characteristics of 1.1 mg NH4 N/L, 4.6 mg NO3 N/L, 37 mg COD/L, and 0.5 mg PO4 P/L after 24 h of the dynamic loading emphasize the favorable response of the LSCFB to the dynamic loadings and the sustainability of performance without loss of nutrient removal capacity.
Original language | English |
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Pages (from-to) | 906-913 |
Number of pages | 8 |
Journal | Journal of Environmental Engineering, ASCE |
Volume | 136 |
Issue number | 9 |
DOIs | |
Publication status | Published - Sept 2010 |
Externally published | Yes |
Keywords
- Abatement and removal
- Biofilm
- Denitrification
- Dynamic loads
- Enhanced biological phosphorus removal
- Fluidized bed technology
- Nitrification
- Nutrient balance
- Nutrients
- Phosphorus
- UV disinfection
ASJC Scopus subject areas
- Environmental Engineering
- Civil and Structural Engineering
- Environmental Chemistry
- General Environmental Science