A number of analytical measurement were used to determine the potential for enhanced biological phosphorus removal (EBPR) in sewage treatment works (STW). Wastewaters studied comprised both municipal and industrial wastewaters and were analysed for diverse parameters such as organic
and phosphorus content, septicity, temperature and pH. Two methods to determine the amount of substrate available for EBPR, the readily biodegradable COD and the VFA potential, were used and compared. The VFA potential method was simplified in terms of samples preservation and pH measurement
was used throughout the test to control its duration. Volatile fatty acid (VFA) production rates and VFA potential to phosphorus ratio were compared to the performance of the STW for BPR. For higher rates and ratios a better performance in terms of phosphorus removal was observed, indicating
a clear correlation with the wastewater characteristics studied.
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