Record Display for the EPA National Library Catalog

RECORD NUMBER: 495 OF 680

OLS Field Name OLS Field Data
Main Title Phosphorus Removal by Trickling Filter Slimes.
Author Zanon, A. E. ;
CORP Author Marquette Univ., Milwaukee, Wis. Dept. of Civil Engineering.
Year Published 1973
Report Number EPA-17010-DZG; 14372,; R2-73-279
Stock Number PB-223 534
Additional Subjects ( Phosphorus inorganic compounds ; Trickling filtration) ; ( Water treatment ; Phosphorus inorganic compounds) ; ( Sewage treatment ; Trickling filtration) ; Performance evaluation ; Laboratory equipment ; Nutrients ; Phosphates ; Nitrates ; Slime ; Biological industrial waste treatment
Holdings
Library Call Number Additional Info Location Last
Modified
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Status
NTIS  PB-223 534 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. 06/23/1988
Collation 132p
Abstract
In an attempt to study phosphorus uptake by biological slimes, a variable speed rotating disc apparatus was constructed. Correlations were attempted between mineral composition of the feed solutions and the phosphorus and nitrogen content of the resulting slimes grown on the discs. An inclined channel apparatus was also constructed and evaluated to differentiate physical or chemical mechanisms from biological mechanisms of phosphorus uptake. The angle of inclination was used to measure the kinetic rates before and after inactivation of the biological slime with ultraviolet light. With the disc apparatus, limited success of inducing biological uptake of phosphorus was obtained. Results from the inclined plane growth chamber showed that the limited phosphorus uptake that did occur could be related to metabolic activity rather than physical sorption or chemical precipitation.