Record Display for the EPA National Library Catalog

RECORD NUMBER: 183 OF 358

Main Title Microstraining and disinfection of combined sewer overflows,
Author Glove, George E. ; Yatsu, Peter M. ;
CORP Author Crane Co. Cochrane Division.
Publisher [U.S. Gov't. Print. Off.]
Year Published 1970
Report Number 11023 EVO 06/70; FWQA-14-12-136; FWQA-11023; 01263,
Stock Number PB-195 674
OCLC Number 00529979
Subjects Sewage--Purification--Filtration
Additional Subjects ( Combined sewers ; Overflows) ; ( Sewage filtration ; Cost comparison) ; Solids ; Removal ; Surface water runoff ; Water quality ; Ozone ; Chlorine ; Coliform bacteria ; Biochemical oxygen demand ; Disinfection ; Drainage ; Cost estimates ; Microstrainer screens
Internet Access
Description Access URL
https://nepis.epa.gov/Exe/ZyPDF.cgi?Dockey=9102399D.PDF
Holdings
Library Call Number Additional Info Location Last
Modified
Checkout
Status
ELBD ARCHIVE EPA 11023-EVO-06-70 Received from HQ AWBERC Library/Cincinnati,OH 10/04/2023
ELBD ARCHIVE EPA 11023-EVO-06-70 AWBERC Library/Cincinnati,OH 11/09/2023
ELBD  EPA 11023-EVO-06-70 AWBERC Library/Cincinnati,OH 11/06/2023
NTIS  PB-195 674 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation viii, 76 pages illustrations 28 cm.
Abstract
Microstraining (Trade Name), using a Microstrainer screen of a nominal aperture of 23 microns, removed up to 98% of the suspended solids from a combined sewer overflow. The sewer, in a residential area of Philadelphia, has an average dwf of 1,000 gph. The maximum combined sewer flow during rainstorms in one year of operation was 304,000 gph (11.3 cfs). Volatile suspended solids removals with the above screen have averaged 68% and 71% during different test periods. Results indicated that there was a slightly better kill of coliform group bacteria with chlorine than with ozone in the Microstrainer effluents when both were used at an initial nominal concentration of 5 ppm, with 5 to 12 minutes detention time. However, chlorine was applied at slightly higher levels and with better control than ozone. Preliminary estimates of the costs of treatment via Microstraining, using tentatively-established throughput rates, show that the capital costs per acre of drainage would be approximately $10,200 for Microstraining alone, $11,200 for Microstraining plus chlorination, and $19,800 for Microstraining plus ozonation. Of eight other currently-proposed schemes, whose costs were estimate, only surface impoundment (where aesthetically acceptable and where low cost land is available) appears competitive. (Author)
Notes
"Program no. 11023 EVO." Includes bibliographical references (pages 75-76).