RESPONSE PATTERN OF NITRIFYING BIOFILM REACTOR TO SHOCK LOADING

The effects of shock loading on the performance of a nitrifying biofil m reactor were investigated over a wide range of conditions by varying the feed concentration of ammonium (S-0) and dilution rate (D) respec tively. It was found that variation in the effluent ammonium concentra tion as S-0 or D changes was-subject to a semi-U shaped curve. The res ponse patterns of the nitrifying biofilm reactor to one-step change in S-0 at a constant dilution rate, and to one-step change in D with kee ping constant S-0 have no significant difference.