Record Display for the EPA National Library Catalog


OLS Field Name OLS Field Data
Main Title High rate filtration of combined sewer overflows /
Author Nebolsine, Ross.
Other Authors
Author Title of a Work
Harvey, Patrick J.
Fan, Chi-Yuan,
Publisher U.S. Government Printing Office,
Year Published 1972
Report Number EPA11023-EYI-04/72; EPA 950-R-72-028
OCLC Number 00496534
Subjects Sewage--Purification--Filtration. ; Combined sewer overflows.
Internet Access
Description Access URL
Library Call Number Additional Info Location Last
EJBD ARCHIVE EPA 950-R-72-028 Headquarters Library/Washington,DC 06/11/2013
EJBD  EPA 950-R-72-028 Headquarters Library/Washington,DC 03/21/2014
EKAD  11023 EYI 04/72 Region 4 Library/Atlanta,GA 08/16/2002 DISPERSAL
ELBD RPS EPA 950-R-72-028 repository copy AWBERC Library/Cincinnati,OH 09/25/2018
ELBD  EPA 11023-EYI-04-72 AWBERC Library/Cincinnati,OH 11/04/2011
Collation x, 339 pages : illustrations ; 28 cm.
"11023 EYI 04/72." "Prepared for the Office of Research and Monitoring, Environmental Protection Agency under contract #14-12-858." Includes bibliographical references.
Contents Notes
Pilot plant studies were conducted to develop and demonstrate the capabilities of the deep bed, dual media, high rate filtrate treatment process for storm caused combined sewer overflows. The treatment system is comprised of a drum screen with a 40 mesh screening element (420 microns opening) followed by a deep bed, dual media, high rate filter of five feet of No. 3 anthracite (effective size 4 mm) over three feet of No. 612 Sand (effective size 2 mm). The results show suspended solids removals of 93 percent, with polyelectrolyte addition, at a filtration rate of 24 gpm/sq ft at an average influent suspended solids of 411 mg/l. Reductions in biochemical oxygen demand averaged 65 percent. Capital costs and operating costs for a high rate filtration plant are given. Principal advantages of the proposed system are: high treatment efficiencies, automated operation, and limited space requirements as compared with alternate flotation or sedimentation systems.