Effect of Organic Carbon Resource on Biological Phosphorous Removal

The effect of different concentration of acetate and different substrate as organic carbon on biological phosphorus removal in the sequencing batch biofilm reactor was studied. The relation of aerobic phosphate removal versus anaerobic phosphate release was analyzed. The results indicate that in order to achieve good and stable phosphorus removal over time, the length of the anaerobic period should be changed to achieve complete removal of easily biodegradable COD in the anaerobic period. The total COD-loading rate should be kept high enough to achieve a net growth of biomass in the reactor. Aerobic phosphate removal versus anaerobic phosphate release has good relativity. In order to enhance phosphorus removal the enough anaerobic phosphate release should be guaranteed.