Main Title |
Concentration of Poliovirus from Tap Water Using Positively Charged Microporous Filters. |
Author |
Sobsey, Mark D. ;
Jones, Baxter L. ;
|
CORP Author |
North Carolina Univ. at Chapel Hill. Dept. of Environmental Sciences and Engineering.;Health Effects Research Lab., Cincinnati, OH. |
Year Published |
1978 |
Report Number |
EPA-R-804218; EPA-600/J-79-140; |
Stock Number |
PB82-118258 |
Additional Subjects |
Water treatment ;
Filters ;
Polioviruses ;
Potable water ;
Viruses ;
Performance evaluation ;
Comparisons ;
Reprints ;
|
Holdings |
Library |
Call Number |
Additional Info |
Location |
Last Modified |
Checkout Status |
NTIS |
PB82-118258 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
Collation |
10p |
Abstract |
Microporous filters that are more electropositive than the negatively charged filters currently used for virus concentration from water by filter adsorption-elution methods were evaluated for poliovirus recovery from tap water. Zeta Plus filters composed of diatomaceous earth-cellulose-'charge-modified' resin mixtures and having a net positive charge of up to pH 5 to 6 efficiently adsorbed poliovirus from tap water at ambient pH levels 7.0 to 7.5 without added multivalent cation salts. The adsorbed viruses were eluted with glycine-NaOH, pH 9.5 to 11.5. Electropositive asbestos-cellulose filters efficiently adsorbed poliovirus from tap water without added multivalent cation salts between pH 3.5 and 9.0, and the absorbed viruses could be eluted with 3% beef extract, pH 9, but not with pH 9.5 to 11.5 glycine-NaOH. Under water quality conditions in which poliovirus recoveries from large volumes of water were less than 5% with conventional negatively charged filters and standard methods, recoveries with Zeta Plus filters averaged 64 and 22.5% for one- and two-stage concentration procedures, respectively. Electropositive filters appear to offer distinct advantages over conventional negatively charged filters for concentrating enteric viruses from water, and their behavior tends to confirm the importance of electrostatic forces in virus recovery from water by microporous filter adsorption-elution methods. |
Supplementary Notes |
Pub. in Applied and Environmental Microbiology, v37 n3 p588-595 Mar 79. |
NTIS Title Notes |
Journal article. |
Title Annotations |
Reprint: Concentration of Poliovirus from Tap Water Using Positively Charged Microporous Filters. |
PUB Date Free Form |
8 Dec 78 |
Category Codes |
13B; 13K; 68D; 94 |
NTIS Prices |
PC A02/MF A01 |
Primary Description |
600/10 |
Document Type |
NT |
Cataloging Source |
NTIS/MT |
Control Number |
323806798 |
Origin |
NTIS |
Type |
CAT |