Main Title |
Treatment and recovery of fluoride industrial wastes / |
Author |
Staebler, Christian J.,
|
CORP Author |
Grumman Aerospace Corp., Bethpage, N.Y. |
Publisher |
Office of Research and Development, U.S. Environmental Protection Agency, For sale by the Supt. of Docs., U.S. Govt. Print. Off. |
Year Published |
1974 |
Report Number |
EPA-660/2-73-024; EPA-S-800680; W74-10543 |
Stock Number |
PB-234 447 |
OCLC Number |
01118530 |
Subjects |
Fluorides ;
Factory and trade waste ;
Water--Purification--Ion exchange process ;
Industrial Waste
|
Additional Subjects |
Fluorides ;
Industrial waste treatment ;
Water pollution control ;
Metal finishing ;
Pilot plants ;
Calcium oxides ;
Performance evaluation ;
Precipitation(Chemistry) ;
Materials recovery ;
Calcium fluorides ;
Water reclamation ;
Centrifugal precipitation ;
Waste water reuse
|
Internet Access |
|
Holdings |
Library |
Call Number |
Additional Info |
Location |
Last Modified |
Checkout Status |
EJBD |
EPA 660-2-73-024 |
c.1 |
Headquarters Library/Washington,DC |
09/04/2013 |
ELBD ARCHIVE |
EPA 660-2-73-024 |
Received from HQ |
AWBERC Library/Cincinnati,OH |
10/04/2023 |
ELBD RPS |
EPA 660-2-73-024 |
repository copy |
AWBERC Library/Cincinnati,OH |
10/19/2015 |
NTIS |
PB-234 447 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
Collation |
x, 85 pages : illustrations ; 27 cm. |
Abstract |
The development and successful demonstration of laboratory and pilot-scale fluoride treatment techniques for selected aerospace and metalworking industry chemical processing solutions and rinse waters are described. Included are laboratory-scale, lime treatment parameters for chemical processing solutions such as temperature, retention time, pH, slurry concentration and fluoride influent and effluent levels, and ion-exchange treatment to reduce the fluoride concentration of rinse waters to levels less than three parts per million. Pilot studies of centrifugal techniques to separate lime-precipitated bridges from titanium chemical milling, titanium descaling and aluminum deoxidizing solutions show that lime precipitation can give final effluents having fluoride concentrations less than three parts per million. Aluminum conversion coating solutions, however, require secondary treatment with aluminum sulfate to give final effluents having fluoride concentrations less than three parts per million. Chemical and mechanical property tests show that it is potentially feasible to use calcium fluoride sludge as a strength-maintaining additive for concrete. The reuse of treated rinse waters, the economics of precipitation, and production plans for chemical processing solutions and rinse waters are also presented. |
Notes |
Report prepared by Grumman Aerospace Corporation, Bethpage, New York. "Project S800680; Program Element 1BB036." "March 1974." "EPA-660/2-73-024." Includes bibliographical references (pages 81-82). |