Evaluation of a New Trickling Filter Media.

摘要

An evaluation to determine the effectiveness and loading parameters of a fused silica synthetic media filter known under the trade name of Gary Glas was undertaken. A 15-inch pilot scale trickling filter was set up at the Albuquerque Seqage Treatment Plant using clarified secondary effluent. A laboratory scale trickling filter was installed using three wastes: synthetic sewage, primary filtered sewage, and Albuquerque sewage. Results from the pilot scale filter indicate low removal efficiency. Laboratory scale filter tests indicate low efficiency using an effluent from another laboratory scale trickling filter. The laboratory scale filter achieved in excess of 90 percent Chemical Oxygen Demand (COD) removal using a sugar and milk solids synthetic sewage. The laboratory scale filter reduced COD of Albuquerque secondary sewage by 60-75 percent. There is no evidence to indicate that this synthetic media achieved better results than any other media for use in trickling filters. (Author)