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RECORD NUMBER: 107 OF 238

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
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NTIS  PB-219 878 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation 107p
Abstract 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)
Supplementary Notes Paper copy available from GPO $1.25, as stock no. EP1.23/2:73-158.
NTIS Title Notes Environmental protection technology series.
PUB Date Free Form Feb 73,
Category Codes 13B; 68D
NTIS Prices PC-GPO/MF A01
Document Type NT
Cataloging Source NTIS/MT
Control Number 326561304
Origin NTIS
Type CAT