| Main Title |
Amenability of reverse osmosis concentrate to activated sludge treatment / |
| Author |
Gupta, Mahendra K.,
|
| Other Authors |
|
| CORP Author |
Rex Chainbelt, inc. Ecology Division. |
| Publisher |
United States Environmental Protection Agency, |
| 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 |
|
| Holdings |
| Library |
Call Number |
Additional Info |
Location |
Last
Modified |
Checkout
Status |
| EJBD |
EPA 620-R-71-009 |
|
Headquarters Library/Washington,DC |
11/04/2013 |
| ELBD ARCHIVE |
EPA 620-R-71-009 |
Received from HQ |
AWBERC Library/Cincinnati,OH |
10/04/2023 |
| ELBD RPS |
EPA 17040-EUE-07-71 |
repository copy |
AWBERC Library/Cincinnati,OH |
09/18/2015 |
|
| Collation |
viii, 119 pages : illustrations, figures, tables ; 28 cm. |
| Notes |
"Report date July 1971." Sponsored by U.S. EPA Includes bibliographical references (pages 65-66). |
| 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. |
