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      


A Feasibility Test of an Anaerobic Trickling Filter
Author: Denny S. Parker, J. Duran, E. R. Hall
Date: 4/489
NULL

The plugging of downflow fixed film anaerobic reactors owing to solids overloads, biomass accumulation, or both, has been identified as a potential operational problem, particularly with fixed bed processes (1). Although anaerobic biofilms have often been reported to be slimy and semi-fluid, they can often reach excessive thicknesses on a stationary medium, perhaps as a result of the hydraulic support provided by the liquid in the reactor. In an attempt to avoid this difficulty, the feasibility of a new process configuration was investigated: the anaerobic trickling filter. The characteristics of the process were similar to those of a downflow stationary fixed film (DSFF) reactor (2), with the exception that, like an aerobic trickling filter, the anaerobic version operated with the media unsubmerged.