Main Title |
Weak-Acid Ion Exchange for Removing Barium, Radium, and Hardness. |
Author |
Snyder, D. W. ;
Snoeyink, V. L. ;
Pfeffer, J. L. ;
|
CORP Author |
Illinois Univ., Urbana.;Environmental Protection Agency, Cincinnati, OH. Water Engineering Research Lab. |
Year Published |
1986 |
Report Number |
EPA-R-808912; EPA/600/J-86/204; |
Stock Number |
PB87-170452 |
Additional Subjects |
Ground water ;
Ion exchange resins ;
Ion exchanging ;
Water pollution control ;
Barium ;
Radium ;
Acids ;
Swelling ;
Removal ;
pH ;
Carbonates ;
Reprints ;
Drinking water
|
Holdings |
Library |
Call Number |
Additional Info |
Location |
Last Modified |
Checkout Status |
NTIS |
PB87-170452 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
Collation |
9p |
Abstract |
Weak-acid resin in the hydrogen form was found to effectively remove barium, radium, and hardness, without increasing the sodium content of the product water. The maximum capacity of the weak-acid resin was about 2.3 times that of strong-acid resin, and much less spent regenerant per unit volume of water treated was produced from a weak-acid column than from a strong-acid column. There are, however, some disadvantages to weak-acid ion exchange: swelling of the resin during exhaustion; the need to use acid-resistant materials; the inability to remove noncarbonate hardness; the necessity of stripping carbon dioxide from the product water and adjusting the pH; and the probable higher cost. |
Supplementary Notes |
Pub. in Jnl. of American Water Works Association, v78 n9 p98-104 Sep 86. Sponsored by Environmental Protection Agency, Cincinnati, OH. Water Engineering Research Lab. |
NTIS Title Notes |
Journal article. |
Title Annotations |
Reprint: Weak-Acid Ion Exchange for Removing Barium, Radium, and Hardness. |
PUB Date Free Form |
c1986 |
Category Codes |
68D; 99B |
NTIS Prices |
PC A02/MF A01 |
Primary Description |
600/14 |
Document Type |
NT |
Cataloging Source |
NTIS/MT |
Control Number |
716918618 |
Origin |
NTIS |
Type |
CAT |