Simultaneous removal of nitrogen and Phoporus in biofilters

Biological removal of Phosphorus is inherently a cyclic mode of operation, where bacteria with the ability to store P intracellularly are selected for by the cyclic operation of the wastewater plant. In biofilm reactors this has the special effect that the diffusion of substrates into and products out of the biofilm changes rapidly during af cycle of operation. The aim of the project is to elucidate the diffusional phenomena and to identify the significance of diffusional resistance to the performance of the process. The phennomena has been clearly identified experimentally.