| Main Title |
Stability and effectiveness of chlorine disinfectants in water distribution systems / |
| Other Authors |
|
| Publisher |
U.S. Environmental Protection Agency, Municipal Environmental Research Laboratory : U.S. Environmental Protection Agency, Center for Environmental Research Information [distributor], |
| Year Published |
1984 |
| Report Number |
EPA/600-S2-84-011 |
| OCLC Number |
10843446 |
| Subjects |
Chlorine--Physiological effect
|
| Internet Access |
|
| Holdings |
| Library |
Call Number |
Additional Info |
Location |
Last
Modified |
Checkout
Status |
| EJBD |
EPA 600-S2-84-011 |
In Binder |
Headquarters Library/Washington,DC |
08/03/2018 |
| ELBD ARCHIVE |
EPA 600-S2-84-011 |
In Binder Received from HQ |
AWBERC Library/Cincinnati,OH |
10/04/2023 |
|
| Collation |
4 pages : illustrations ; 28 cm |
| Notes |
Caption title. At head of title: Project summary. Distributed to depository libraries in microfiche. "Mar. 1984." "EPA/600-S2-84-011." |
| Contents Notes |
"A test system for water distribution was used to evaluate the stability and effectiveness of three residual disinfectants - free chlorine, combined chlorine. and chlorine dioxide - when challenged with a sewage contaminant. The test distribution system consisted of the street main and internal plumbing for two barracks at Fort George G. Meade in Fort Meade, Maryland. To the existing pipe network, 152 m (500 ft) of 13-mm (0.5-in.) copper pipe was added for sampling and 60 m (200 ft) of 2.54cm. (1.0-in.) plastic pipe was added for circulation. The levels of residual disinfectants tested were 0.2 mg/Land 1.0 mg/L as available chlorine. In the absence of a disinfectant residual, microorganisms from the sewage contaminant were consistently recovered at high levels. The presence of any disinfectant residual reduced the microorganism level and frequency of occurrence at the consumer's tap. Free chlorine was the most effective residual disinfectant and may serve as a marker or flag in the distribution network. Free chlorine and chlorine dioxide were the least stable in the pipe network. The loss of disinfectant in the pipe network followed first-order kinetics. The half life determined in static tests for free chlorine, chlorine dioxide, and combined chlorine was 140, 93, and 1,680 min, respectively." |
| Place Published |
Cincinnati, Ohio |
| Access Notes |
Also available via the World Wide Web. |
| Corporate Au Added Ent |
Municipal Environmental Research Laboratory. |
| PUB Date Free Form |
1984 |
| BIB Level |
m |
| Cataloging Source |
OCLC/T |
| OCLC Time Stamp |
20100331155936 |
| Language |
eng |
| SUDOCS Number |
EP 1.89/2:600/S 2-84-011 |
| Origin |
OCLC |
| Type |
CAT |
| OCLC Rec Leader |
02645nam 2200337Ia 45020 |
