Record Display for the EPA National Library Catalog

RECORD NUMBER: 1 OF 4

OLS Field Name OLS Field Data
Main Title Amenability of reverse osmosis concentrate to activated sludge treatment /
Author Gupta, Mahendra K.
Other Authors
Author Title of a Work
Mason, Donald G.
Gupta, Mahendra K.
CORP Author Rex Chainbelt, inc. Ecology Division.
Publisher U.S. Government Printing Office,
Year Published 1972
Report Number EPA17040-EUE-07/71; W7211606; EPA/620/R-71/009
OCLC Number 00375914
Subjects Sewage--Purification--Reverse osmosis process. ; Sewage--Purification--Activated sludge process.
Internet Access
Description Access URL
http://nepis.epa.gov/Exe/ZyPDF.cgi?Dockey=9100WBEW.PDF
Holdings
Library Call Number Additional Info Location Last
Modified
Checkout
Status
EJBD ARCHIVE EPA 620-R-71-009 Headquarters Library/Washington,DC 04/11/2011
EJBD  EPA 620-R-71-009 Headquarters Library/Washington,DC 11/04/2013
EKAD  17040EUE07/71 Region 4 Library/Atlanta,GA 08/30/2002
EKAD  TD754.R48 Region 4 Library/Atlanta,GA 08/30/2002
ELBD RPS EPA 17040-EUE-07-71 repository copy AWBERC Library/Cincinnati,OH 09/18/2015
Collation viii, 119 pages : illustrations ; 28 cm.
Notes
"Report date July 1971." Includes bibliographical references. Sponsored by U.S. EPA
Contents Notes
Pilot scale tubular and spiral wound Reverse Osmosis (RO) units were used to establish the feasibility of renovating municipal sewage. Results indicated that prior treatment with ferric chloride and alum will be necessary even when using the tubular RO system. RO produced an approximate 100 mg/ TDS of inorganic ions in the effluent, but an estimated 40 to 50% of the soluble organic material permeated the membranes at high feed water recoveries. Approximately 70% of the organic material passing the membrane was ethanol, but other organics may pass through the membranes from other sewages. 92% water recovery rates, with no precipitation problems in the RO concentrate, were achieved, but RO product waters would require further treatment for organic removal prior to discharge. The feasibility of biodegrading RO concentrates was also established.