Record Display for the EPA National Library Catalog

RECORD NUMBER: 391 OF 751

OLS Field Name OLS Field Data
Main Title Metals Removals and Partitioning in Conventional Wastewater Treatment Plants.
Author Petrasek, Jr., A. C. ; Kugelman, I. J. ;
CORP Author Municipal Environmental Research Lab., Cincinnati, OH.
Year Published 1983
Report Number EPA-600/J-83-191;
Stock Number PB84-177484
Additional Subjects Sewage treatment ; Metals ; Materials recovery ; Activated sludge process ; Pilot plants ; Sampling ; Chemical analysis ; Reprints ; Solid wastes ; Sewage sludge ; Sludge treatment
Holdings
Library Call Number Additional Info Location Last
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Status
NTIS  PB84-177484 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 11p
Abstract
Metals removal and partitioning to primary and secondary sludge during treatment of domestic wastewater by conventional sewage treatment processes was studied. Raw wastewater entering the Mill Creek Sewage Treatment Plant, Cincinnati, Ohio, was fed to a 0.1 l/s (1.6 gpm) pilot treatment plant. The plant consisted of a sewer simulator, aerated grit chamber, primary settler, and activated sludge process. Metals were monitored at the various stages of treatment by analysis of composite samples. Based on mean values, overall removal of As, Ca, Mg, Hg, and SiO2 was less than 20%; of Ag, Cr and Mn was between 20% and 50% of Cd, Fe, Ni and Zn was between 50% and 80%; and was greater than 80% for Cu and Pb. Average removal for all metals was 42%. The primary sludge contained 10% - 15% of the metals entering the plant while the waste activated sludge contained about 30%. These results are similar to those recently in other cities of the U.S.