Record Display for the EPA National Library Catalog
RECORD NUMBER: 13 OF 47
|OLS Field Name||OLS Field Data|
|Main Title||Electro-regenerated ion-exchange deionization of drinking water /|
|Author||Davis, Thomas A.|
|CORP Author||Southern Research Inst., Birmingham, Ala.;Health Effects Research Lab., Cincinnati, Ohio.|
|Publisher||U.S. Environmental Protection Agency, Health Effects Research Laboratory,|
|Report Number||EPA/600/1-77/035; SORI-EAS-77-069; EPA-68-03-2209|
|Stock Number||PB-270 910|
|Subjects||Drinking water--Purification--ion exchange process.|
|Additional Subjects||Water treatment ; Ion exchanging ; Water pollution control ; Electrodialysis ; Potable water ; Inorganic salts ; Osmosis ; Deionization ; Membranes ; Precipitation(Chemistry) ; Design criteria ; Performance evaluation ; Reverse osmosis ; Electroregeneration ion exchanging|
|Collation||viii, 72 pages : illustrations ; 28 cm.|
This report presents the development of a device for removal of inorganic salts from drinking water to facilitate the subsequent concentration of organic solutes for bioassay. Prior attempts to concentrate the organic solutes by reverse osmosis (RO) resulted in precipitation of the inorganic salts. To prevent this precipitation, the drinking water is pretreated by Electro-Regenerated Ion-exchange Deionization (ERID). The ERID device developed for this purpose is essentially an electrodialyzer with thick depleting compartments packed with a mixture of anion- and cation-exchange resin beads. The resins provide a conductive medium for electrical transport of ions out of the demineralized water, through ion-exchange membranes, and into a concentrated waste stream.
"EPA-600/1-77-035." EPA contract no. 68-03-2209; EPA project officer: Frederick C. Kopfler. Microfiche.