Main Title |
Foam flotation treatment of industrial wastewaters : laboratory and pilot scale / |
Author |
Wilson, David J., ;
Thackston, Edward L.
|
Other Authors |
|
CORP Author |
Cinncinnati, OH; 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-600/2-80-138; EPA-R-806338; EPA-R-804438 |
Stock Number |
PB80-212905 |
OCLC Number |
13595021 |
Subjects |
Factory and trade waste--United States ;
Sewage--Purification--Flotation ;
Surface active agents
|
Additional Subjects |
Flotation ;
Metals ;
Zinc ;
Cobalt ;
Nickel ;
Chromium ;
Cyanides ;
Lead(Metal) ;
Copper ;
Surfactant ;
Performance evaluation ;
Froth flotation
|
Internet Access |
|
Holdings |
Library |
Call Number |
Additional Info |
Location |
Last Modified |
Checkout Status |
EHAM |
QH541.R2 EPA-, 600/2, 80-138 |
|
Region 1 Library/Boston,MA |
04/29/2016 |
EJBD |
EPA 600-2-80-138 |
|
Headquarters Library/Washington,DC |
04/11/2014 |
ELBD ARCHIVE |
EPA 600-2-80-138 |
Received from HQ |
AWBERC Library/Cincinnati,OH |
10/04/2023 |
ESAD |
EPA 600-2-80-138 |
|
Region 10 Library/Seattle,WA |
03/23/2010 |
NTIS |
PB80-212905 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
Collation |
x, 133 pages : illustrations ; 28 cm. |
Abstract |
A floc foam flotation pilot plant was shown to remove lead and zinc in dilute aqueous solution to quite low concentrations. The results suggest several design improvements. These include: (1) a larger mixer-flocculation tank to increase the detention time of the floc before flotation; (2) increased baffling of the stripping column section, to decrease channelling and foam overturn at high loadings; and (3) a decrease in the length of the foam drainage section of the column, to decrease the tendency of the foam to collapse before dishcarge....The flotation of Fe(OH)3 flocs with NLS is impeded by several polyvalent anions, some of which occur in inudstrial cleaners. These anions displace surfactant from the floc, rendering it unfloatable. This phenomenon, an interference in waste treatment, could be used to relcaim surfactant from flotation sludges. A surface adsorption model for floc foam floatation was anlayzed and found to account for the effects of surfactant concentration, ionic strength, specifically adsorbed ions, and surfactant hydrocarbon chain length. |
Notes |
Prepared for U.S. Environmental Protection Agency, Office of Research and Development, Industrial Environmental Research Laboratory, Cincinnati, Ohio, under grant no. R-804438. Includes bibliographical references (pages 86-91). |