Main Title |
Removal of fluorides from industrial wastewaters using activated alumina / |
Author |
Frankel, I. F., ;
Frankel, Irwin. ;
Juergens, Eric
|
Other Authors |
|
CORP Author |
Feldspar Corp., Spruce Pine, NC.;Industrial Environmental Research Lab.-Cincinnati, OH. |
Publisher |
Industrial Environmental Research Laboratory, Office of Research and Development, U.S. Environmental Protection Agency, Available through the National Technical Information Service. |
Year Published |
1980 |
Report Number |
EPA-600/2-80-058; EPA-R-804377 |
Stock Number |
PB80-190549 |
OCLC Number |
13600930 |
Subjects |
Fluorides ;
Factory and trade waste ;
Water--Fluoridation ;
Water--Purification
|
Additional Subjects |
Water pollution control ;
Fluorides ;
Flotation ;
Aluminium oxide ;
Adsorption ;
Cost analysis ;
Capitalized costs ;
Industrial waste treatment ;
Feldspaes ;
Operating costs
|
Internet Access |
|
Holdings |
Library |
Call Number |
Additional Info |
Location |
Last Modified |
Checkout Status |
EHAM |
QH541.R2 EPA-600/2-, 80-058 |
|
Region 1 Library/Boston,MA |
04/29/2016 |
EJBD |
EPA 600-2-80-058 |
|
Headquarters Library/Washington,DC |
04/01/2016 |
ELBD ARCHIVE |
EPA 600-2-80-058 |
Received from HQ |
AWBERC Library/Cincinnati,OH |
10/04/2023 |
ESAD |
EPA 600-2-80-058 |
|
Region 10 Library/Seattle,WA |
03/23/2010 |
NTIS |
PB80-190549 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
Collation |
vii, 45 pages : illustrations ; 28 cm. |
Abstract |
A four-step, bench-scale process has been developed that is capable of removing at least 92 percent of the soluble fluoride from feldspar flotation process wastewaters at a projected cost of $1.03/kkg ($0.93/ton) of feldspar. For a 163,000 kkg/year (180,000 ton/year) plant, the initial capital expenditure would be about $200,000. The wastewater is pretreated with sodium hydroxide, lime, and calcium chloride, which removes an initial 50 to 60 percent of fluoride. The clarified water is then passed through a bed of activated alumina for further fluoride removal. The activated alumina is regenerated with a 1-percent sodium hydroxide solution, and fluoride in the caustic liquor is effectively precipitated with calcium chloride. The fluoride can be recovered in concentrated form as insoluble calcium fluoride filter cake. |
Notes |
Includes bibliographical references (page 22). Prepared for U.S. Environmental Protection Agency, Office of Research and Development, Industrial Environmental Research Laboratory, Cincinnati, Ohio, submitted by Versar, Inc., under grant no. Contract Number: R-804377. |