Record Display for the EPA National Library Catalog

RECORD NUMBER: 26 OF 52

Main Title Investigation of response surfaces of the microscreen process /
Author Shea, Timothy G.,
Other Authors
Author Title of a Work
Males, Richard M.,
Shea, Timothy G.
CORP Author Engineering-Science, inc.
Publisher United States Environmental Protection Agency, Office of Research and Monitoring,
Year Published 1971
Report Number W7212960; EPA17090-EEM-12/71; EPA 620-R-71-004
OCLC Number 00363870
Subjects Sewage--Purification--Filtration
Internet Access
Description Access URL
https://nepis.epa.gov/Exe/ZyPDF.cgi?Dockey=9100WC2A.PDF
Holdings
Library Call Number Additional Info Location Last
Modified
Checkout
Status
EJBD  EPA 620-R-71-004 Headquarters Library/Washington,DC 05/02/2014
ELBD ARCHIVE EPA 620-R-71-004 Received from HQ AWBERC Library/Cincinnati,OH 10/04/2023
ELBD  EPA 17090-EEM-12-71 AWBERC Library/Cincinnati,OH 11/04/2011
Collation viii, 142 pages : illustrations, figures, tables ; 28 cm.
Notes
"Report date December 1971." United States Environmental Protectoin Agency Contract No. Contract Number: 14-12-819. Includes bibliographical references (page 83).
Contents Notes
Field, laboratory, theoretical, and state-of-the-art studies were conducted with regard to use of microscreens for tertiary sewage treatment applications. Field studies were conducted with two pilot microscreen units, using a variety of screen sizes and types, for activated sludge, trickling filter, and oxidation pond effluents. Particle size distribution of the effluents (microscreen influents) were found to be the key characterizing parameter in determination of treatment effectiveness. Overall effectiveness of solids removal was low, and was ascribed to deficiencies in microscreen design practice for the transfer of screened solids from the screen to the backwash system and out of the microscreen unit. A computer model of the process was developed in a format compatible with the EPA Executive Program for Optimization of Treatment Systems.