Study on Denitrification and Phosphorus Removal Using an Integrated A/O Trickling Filter
Two columns were experimented to compare trickling filter with integrated A/O trickling filter (IA/OTT) in this study. Denitrification and phosphorus removal were limited in traditional trickling filter. By designing anoxic section, adding carbon source and recycling outflow, denitrification was enhanced in IA/OTT. Meanwhile, chemical-biological methods were used to improve the phosphorus removal. It was shown that removal efficiency of CODcr, NH3-N, TN and TP were ideal. Compared with the traditional trickling filter, especially, the removal efficiency of TN and TP were respectively about 35% and 50% higher.
Yanguo Shi and Jinlong Zuo
Y. Kuang et al., "Study on Denitrification and Phosphorus Removal Using an Integrated A/O Trickling Filter", Advanced Materials Research, Vols. 183-185, pp. 819-823, 2011