| Main Title |
Pyrogenic activity of carbon-filtered waters / |
| Author |
Wolf, Harold W.,
|
| Other Authors |
|
| Publisher |
Environmental Protection Agency, Office of Research and Development, Health Effects Research Laboratory, For sale by the National Technical Information Service. |
| Year Published |
1979 |
| Report Number |
EPA-600/1-79-009; EPA-R-804420 |
| Stock Number |
PB 293 172 |
| OCLC Number |
04828571 |
| ISBN |
pbk. |
| Subjects |
Water--Purification--Filtration ;
Pyrogens ;
Endotoxins
|
| Additional Subjects |
Water treatment ;
Activated carbon ;
Pyrogens ;
Potable water ;
Filtration ;
Samples ;
Comparison ;
Organic compounds ;
Biochemical oxygen demand ;
Disinfection ;
Adsorption ;
Public health ;
Lipopolysaccharides ;
Chemical oxygen demand ;
Endotoxins ;
Toxic substances ;
Drinking water
|
| Internet Access |
|
| Holdings |
| Library |
Call Number |
Additional Info |
Location |
Last
Modified |
Checkout
Status |
| EJBD |
EPA 600-1-79-009 |
|
Headquarters Library/Washington,DC |
04/18/2014 |
| ELBD ARCHIVE |
EPA 600-1-79-009 |
Received from HQ |
AWBERC Library/Cincinnati,OH |
10/04/2023 |
| ELBD RPS |
EPA 600-1-79-009 |
repository copy |
AWBERC Library/Cincinnati,OH |
03/12/2019 |
| NTIS |
PB-293 172 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
| Collation |
ix, 113 pages : illustrations ; 28 cm. |
| Abstract |
The endotoxin content and pyrogenic response of granular activated carbon (GAC) filtered waters were studied. GAC-filtered secondary effluent from an activated sludge pilot plant contained free endotoxins in the range 6-250 micrograms/l yielding positive pyrogenic responses in 18 of 20 trials. Samples obtained from 27 different water supplies in the U.S. that utilize GAC adsorption contained free endotoxin ranging from 1.2-25 micrograms/l but none gave a pyrogenic response. No relationship was discernible between endotoxin content and pyrogenic response. Small removals of total organic carbon (TOC) by GAC beds which had been in operation in water treatment plants without regeneration for as long as 110 months were observed. However, 5 of 28 samples showed an increase in TOC through GAC and 8 of 28 samples showed an increase in standard plate count. One of 25 samples yielded pseudomonads, but none of the 28 samples contained coliforms. Good correlations were observed on non-disinfected AWT effluent samples between standard plate count and total endotoxin (r = 0.945), standard plate count and free endotoxin (r = 0.932), and total coliforms and free endotoxin (r = 0.939). Lack of good correlations, however, were observed in assaying AWT samples that had been subject to the disinfecting procedures of chlorination, ozonation, pH or UV irradiation. |
| Notes |
Grant no. R-804420. Feb. 1979. Includes bibliographical references. |
| Place Published |
Cincinnati, Ohio Springfield, Virginia. |
| Supplementary Notes |
Prepared in cooperation with Texas Univ. Health Science Center at San Antonio. |
| Corporate Au Added Ent |
Health Effects Research Laboratory (Cincinnati, Ohio); Texas A & M University. |
| Corp Au Ser Add Ent |
Environmental health effects research series ; EPA-600/1-79-009. United States. ; Environmental health effects research series ; EPA-600/1-79-009. United States. ; Environmental health effects research series ; EPA-600/1-79-009. United States. |
| Title Ser Add Ent |
Research reporting series. Environmental health effects research ; EPA-600/1-79-009. |
| PUB Date Free Form |
1979 |
| Series Title Untraced |
Research reporting series. 1, Environmental health effects research ; EPA-600/1-79-009 |
| NTIS Prices |
PC A06/MF A01 |
| BIB Level |
m |
| Medium |
unmediated |
| Content |
text |
| Carrier |
volume |
| Cataloging Source |
OCLC/T |
| OCLC Time Stamp |
20190311061349 |
| Language |
eng |
| SUDOCS Number |
EP 1.23/4:600/1-79-009 |
| Origin |
OCLC |
| Type |
MERGE |
| OCLC Rec Leader |
02535cam 2200637Ii 45010 |
