Record Display for the EPA National Library Catalog


Main Title Phosphorus removal by ferrous iron and lime /
Author Alvord, E. Thomas.
Other Authors
Author Title of a Work
Gaughan, Dennis M.,
Marr, Clyde M.,
Colpetzer, Thomas.
Rose, Dudley B.,
Alvord, E. Thomas.
CORP Author Rand Development Corporation.
Publisher United States Environmental Protection Agency, Water Quality Office,
Year Published 1971
Report Number EPAWQO-11010-EGO-01/71; EPA 620-R-71-023
OCLC Number 00363855
Subjects Sewage--Purification ; Flocculation ; Metals--Pickling--By-products ; Phosphates ; Lake County (Ohio) ; Ohio--Lake County
Additional Subjects Sewage--Purification ; Flocculation ; Metals--Pickling--By-products ; Phosphates
Internet Access
Description Access URL
Library Call Number Additional Info Location Last
EJBD  EPA 620-R-71-023 Headquarters Library/Washington,DC 05/22/2014
ELBD ARCHIVE EPA 620-R-71-023 Received from HQ AWBERC Library/Cincinnati,OH 10/04/2023
ELBD RPS EPA 11010-EGO-01-71 repository copy AWBERC Library/Cincinnati,OH 02/02/2015
Collation viii, 71 pages : illustrations, figures, tables ; 28 cm.
"January, 1971." "Research conducted by the Rand Development Corporation and the County of Lake, Painsville, Ohio." Includes bibliographical references (pages 63-66).
Contents Notes
Spent pickle liquor, as a source of ferric ion, was added to primary treatment facilities and found to be effective in removing more than 60% of the phosphorus contained in the sewage. When advanced means for more complete removal of the insolubilized phosphates are available, removals in excess of 90% are indicated. In addition, overall suspended solids removals averaged 61.5% and BOD and COD removals averaged 61.6 and 55.3 percent during a 23 month test period. Required iron dosage ranged from the theoretical minimum of 2.7 to a maximum of approximately 3.1 weights of ferrous iron per weight of phosphorus. The weight increase in sludge solids due to chemical precipitation of phosphorus was 100 lbs/million gallons/mg/liter of phosphorus in the influent. Total costs for treating a raw sewage containing 13 mg/l phosphorus are given.