Record Display for the EPA National Library Catalog


OLS Field Name OLS Field Data
Main Title Application of Plastic Media Trickling Filters for Biological Nitrification Systems.
Author Duddle, Glenn A. ; Richardso, Stevens E. ;
CORP Author Dow Chemical Co., Midland, Mich.
Year Published 1973
Report Number DI-14-12-900; EPA-17010-FSJ; R2-73-199;
Stock Number PB-227 628
Additional Subjects Chemical removal(Sewage treatment) ; Nitrogen ; Trickling filtration ; Pilot plants ; Nitrification ; Performance evaluation ;
Library Call Number Additional Info Location Last
NTIS  PB-227 628 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. NTIS 06/23/1988
Collation 116p
This study demonstrated the feasibility of using plastic media in a stage system to achieve biological nitrification of municipal effluents. The secondary effluent from the Midland, Michigan, wastewater treatment plant was dosed to a pilot scale trickling filter containing plastic media. Consistent nitrification was obtained under both summer and winter conditions. Net cell growth was minimal, and the filter effluent could be directly filtered by tri-media filtration. The tri-media filter also served as a denitrification system when methanol was added to the nitrified effluent ahead of filtration. Significant changes were noted in the operational characteristics of the tri-media filter.