Brown and Caldwell Home Page
Technical Papers RECENT PAPERS    ALL PAPERS      LOG IN

Brown and Caldwell engineers and scientists are technical and thought leaders in the environmental sector. Meet the people who have been advancing innovation for more than 70 years.
Author      Title/Abstract      


02 Limitations in CH4 and NH4 + Utilizing Biofilms
Author: Denny S. Parker, Bruce E. Logan, R. G. Arnold
Date: 7/890
Presented at the ASCE Conference on Environmental Engineering, July 8-11,1990

Oxygen gradients can rapidly develop in fluid films covering biofilm in trickling filters. We use a computer model to calculate the maximum oxygen flux to a biofilm, and show that the maximum ammonia removal rate in nitrifying trickling filters (NTFs) is within the range expected from oxygen-limited transport. Based on our experience with NTFs, we discuss the implications of gas-transport limitations for methanotrophic biofilms in plastic media trickling filters.