alexa Effect of prefermentation on denitrifying phosphorus removal in slaughterhouse wastewater.
Environmental Sciences

Environmental Sciences

Journal of Bioremediation & Biodegradation

Author(s): Merzouki M, Bernet N, Delgens JP, Benlemlih M

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Abstract An anaerobic-anoxic sequencing batch reactor (A2 SBR) coupled with a fixed-bed nitrification reactor for simultaneous carbon, nitrogen and phosphorus removal was evaluated using slaughterhouse wastewater. Whereas the treatment could not be successfully carried out on the raw wastewater, the process showed very good nutrient removal performances after prefermentation. The removals of COD, N-NH4 and P-PO4 achieved were 99\%, 85\% and 99\%, respectively. The increase in volatile fatty acid (VFA) and phosphate concentrations in the effluent after prefermentation may explain the high levels of biological carbon, nitrogen and phosphorus removal observed. A simple prefermentation is, therefore, necessary but sufficient to ensure good performances of the denitrifying enhanced biological phosphorus removal (EBPR) process. This article was published in Bioresour Technol and referenced in Journal of Bioremediation & Biodegradation

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