Record Display for the EPA National Library Catalog


Main Title Phosphorus Inactivation by Zirconium in a Eutrophic Pond.
Author Sanville, William D. ; Powers, Charles F. ; Schuytema, Gerald S. ; Stay, Francis S. ; Lauer, William L. ;
CORP Author Corvallis Environmental Research Lab., OR.
Year Published 1982
Report Number EPA-600/J-82-223;
Stock Number PB83-163402
Additional Subjects Phosphorus ; Water pollution control ; Nutrients ; Zirconium ; Zirconium chlorides ; Phytoplankton ; Lanthanum ; Chlorides ; Carbonates ; Sodium ; Aluminates ; Aluminum sulfate ; Tungstates ; Titanium sulfates ; Toxicity ; Aquatic plants ; Aquatic animals ; Reprints ; Eutrophication
Library Call Number Additional Info Location Last
NTIS  PB83-163402 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation 12p
Eutrophication control remains a critical phase in the management of freshwater ecosystems. A fundamental approach is limitation of nutrients through diversion or advanced waste treatment. However, trophic state improvement may not be obtained in systems with poor flushing characteristics or in systems that recycle large quantities of nutrients from enriched sediments. In such cases in situ treatment is a possible option. The authors conducted a systematic laboratory evaluation of a group of potential phosphorus inactivants. Zirconium tetrachloride, zirconyl chloride, lanthanum (La) rare earth carbonate, lanthanum rare earth chloride, sodium aluminate, aluminum sulfate, sodium tungstate, titanium sulfate, and a crude zirconium refinery waste were evaluated for P-removal efficiency and toxicity to aquatic organisms.