Record Display for the EPA National Library Catalog


OLS Field Name OLS Field Data
Main Title Field Study of Nitrification with the Submerged Filter.
Author McHarnes, Donald D. ; McCart, Perry L. ;
CORP Author Stanford Univ., Calif. Dept. of Civil Engineering.
Year Published 1973
Report Number EPA-17010-EPM; 08292,; R2-73-158
Stock Number PB-219 878
Additional Subjects ( Sewage treatment ; Nitrification) ; ( Chemical removal(Sewage treatment) ; Nitrogen) ; Oxygenation ; Aerobic processes ; Oxygen ; Oxidation ; Ammonia ; Biochemical oxygen demand ; Solubility ; Cost estimates ; Pilot plants ; Sewage filtration ; Solids ; Performance evaluation ; Nitrites ; Bacteria ; Sewage treatment effluent ; Nitrogen bacteria
Library Call Number Additional Info Location Last
NTIS  PB-219 878 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. 06/23/1988
Collation 107p
Successful and reliable nitrification of secondary activated sludge plant effluent was demonstrated in this field study using laboratory scale submerged rock filters and pure oxygen. The filter also operated as a highly effective polishing device reducing BOD and suspended solids by as much as 80 to 90 percent to levels of less than 10 mg/l. Two methods of oxygen introduction were evaluated. One system involved preoxygenation with pure oxygen at one atm of pressure, and required recycle of treated effluent because of limited oxygen solubility. The other system, which employed direct bubbling of oxygen into the filter, was estimated to be less costly because of a lower oxygen equipment requirement. (Author Modified Abstract)