Main Title |
Effect of Molecular Oxygen on the Scaleup of GAC Adsorbers. |
Author |
Vidiv, R. D. ;
Sorial, G. A. ;
Papadimas, S. P. ;
Suidan, M. T. ;
Speth, T. F. ;
|
CORP Author |
Environmental Protection Agency, Cincinnati, OH. Risk Reduction Engineering Lab. |
Publisher |
c1992 |
Year Published |
1992 |
Report Number |
EPA/600/J-92/342; |
Stock Number |
PB93-106896 |
Additional Subjects |
Adsorbents ;
Activated carbon process ;
Water purification ;
Pilot plants ;
Comparison ;
Performance evaluation ;
Simulation ;
Particle size ;
Anoxic ;
Organic matter ;
Oxygen ;
Volatile organic compounds ;
Tests ;
Reprints ;
Trichloroethene
|
Holdings |
Library |
Call Number |
Additional Info |
Location |
Last Modified |
Checkout Status |
NTIS |
PB93-106896 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
Collation |
12p |
Abstract |
A rapid small-scale column test (RSSCT), designed according to the assumption of no dependency of the intraparticle surface diffusion coefficient on the activated carbon particle size, was able to accurately predict breakthrough of three volatile organic chemicals as well as background organic matter under both oxic and anoxic conditions. A second RSSCT, however,--designed assuming a linear dependency of the intraparticle surface diffusion coefficient on the activated carbon particle size--significantly overestimated the adsorptive capacity attainable from the large-column tests. The presence of molecular oxygen in the test environment increased the adsorptive capacity of activated carbon for background organic matter, yielding a delay in its breakthrough from an adsorber. Because of the increased capacity for background organic matter, the resultant capacity for volatile organic chemicals decreased because of competitive effects. |
Supplementary Notes |
Pub. in Jnl. American Water Works Association, p98-105 Aug 92. |
NTIS Title Notes |
Journal article. |
Title Annotations |
Reprint: Effect of Molecular Oxygen on the Scaleup of GAC Adsorbers. |
Category Codes |
68D; 99B |
NTIS Prices |
PC A03/MF A01 |
Primary Description |
600/14 |
Document Type |
NT |
Cataloging Source |
NTIS/MT |
Control Number |
234225353 |
Origin |
NTIS |
Type |
CAT |