Αυθεντικό κείμενο - Αγγλικά - chalk as the carrier for nitrifying biofilm in a fluidized bed reactor

three batches of chalk, each one having a different dissolution rate, were used to replace the dissolved chalk...
..the average cell yield was- 0.1g cells/g N oxidized,similar to the cell yield during reactor start-up when the pH was 7.