| Main Title |
New microbial indicators of wastewater chlorination efficiency / |
| Author |
Engelbrecht, Richard S., ;
Englebrecht, Richard S. ;
Foster, David H. ;
Greening, Elaine O. ;
Lee., Sai H.
|
| Other Authors |
|
| CORP Author |
Illinois Univ., Urbana. Dept. of Civil Engineering. |
| Publisher |
Office of Research and Development, U.S. Environmental Protection Agency, For sale by the Supt. of Docs., U.S. G.P.O., |
| Year Published |
1974 |
| Report Number |
EPA 670/2-73-082; EPA-17060-EYZ; W74-10189 |
| Stock Number |
PB-234 169 |
| OCLC Number |
01182201 |
| Subjects |
Factory and trade waste ;
Indicators (Biology) ;
Sewage--Purification--Chlorination ;
Water--Purification--Chlorination ;
Industrial Waste
|
| Additional Subjects |
Chlorination ;
Microorganisms ;
Water pollution ;
Microorganism(Control) ;
Waste water ;
Indicator species ;
Coliform bacteria ;
Yeasts ;
Viruses ;
Enteroviruses ;
Tolerances(Physiology) ;
Sewage treatment ;
Bioindicators
|
| Internet Access |
|
| Holdings |
| Library |
Call Number |
Additional Info |
Location |
Last
Modified |
Checkout
Status |
| EJBD |
EPA 670-2-73-082 |
c.1 |
Headquarters Library/Washington,DC |
05/17/2013 |
| ELBD ARCHIVE |
EPA 670-2-73-082 |
Received from HQ |
AWBERC Library/Cincinnati,OH |
10/04/2023 |
| ELBD RPS |
EPA 670-2-73-082 |
repository copy |
AWBERC Library/Cincinnati,OH |
04/24/2018 |
| ELBD |
EPA 670-2-73-082 |
|
AWBERC Library/Cincinnati,OH |
09/24/2020 |
| NTIS |
PB-234 169 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
| Collation |
viii, 67 pages : illustrations ; 27 cm. |
| Abstract |
The coliform group of indicator organisms has a relatively low resistance to chlorine when compared to pathogens such as enteric viruses and protozoan cysts. Consequently, an effort has been initiated to find a new chlorine resistant bioindicator of wastewater chlorination efficiency. A yeast and two different acid-fast bacilli were found to be resistant to chlorination in the range considered necessary for the inactivation of pathogens, including viruses. One acid-fast bacillus survived 2.0 mg/l free chlorine for 67 min while the other survived 1.0 mg/l free chlorine for 15 min. The yeast resisted 1.0 mg/l free chlorine for 20 min. In comparison, a pure culture of E. coli failed to survive five min contact with 0.03 mg/l free chlorine. The chlorine resistance and other characteristics of the yeasts and acid-fast bacilli under study suggest that they show promise as bioindicators for wastewater chlorination for the more chlorine resistant pathogens. |
| Notes |
"Project 17060 EYZ; Program element 1BB043." "February 1974." Report prepared by Department of Civil Enginering (Environmental Engineering) at Urbana-Champaign, University of Illinois, Urbana, Illinois. Includes bibliographical references (pages 61-65). |
| Contents Notes |
Shows how to recycle waste materials to create compost, discusses the uses of compost and equipment used, and includes instructions for building compost containers. |
