Main Title |
Flow augmenting effects of additives on open channel flows / |
Author |
Derick, Charles,
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Other Authors |
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Publisher |
Office of Research and Monitoring : For sale by the Supt. of Docs., U.S. Govt. Print. Off., |
Year Published |
1973 |
Report Number |
EPA-R2-73-238 |
OCLC Number |
00933907 |
Subjects |
Polymers--Additives ;
Open-channel flow ;
Channels (Hydraulic engineering) ;
Hydraulics ;
Polymers and polymerization--Additives
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Internet Access |
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Holdings |
Library |
Call Number |
Additional Info |
Location |
Last Modified |
Checkout Status |
EJBD |
EPA-R2-73-238 |
|
Headquarters Library/Washington,DC |
07/18/2014 |
ELBD ARCHIVE |
EPA-R2-73-238 |
Received from HQ |
AWBERC Library/Cincinnati,OH |
10/04/2023 |
ELBD RPS |
EPA R2-73-238 |
repository copy |
AWBERC Library/Cincinnati,OH |
03/30/2015 |
|
Collation |
viii, 74 pages : illustrations ; 27 cm. |
Notes |
"Contract no. 68-01-0168; Project 11020 GQG." Contract Number: 68-01-0168 Includes bibliographical references (page 61), and glossary. Document for sale by the Superintendent of Documents, paper, $1.00. 4to. |
Contents Notes |
Conclusions and recommendations -- Introduction -- Polymer selection -- Open channel flow evaluation -- Flume and spillway tests -- Discussion. Two model open channel configurations (trapezoidal and rectangular) and three water soluble polymers (Polyox Coagulant, Polyox WSR-301, and Separan AP-30) were used to experimentally determine the effects of injecting dilute polymer solutions into open channel water flows. It was found that for all test cases, injection of the three polymer additives produced flow characteristic changes reflected as either a water surface level decrease at constant flow rates or a flow rate increase at constant static heads. These flow characteristic changes were found to be dependent, in varying degrees, on channel slope, surface roughness, injection point location, polymer injection method, flow Reynolds number, and injected polymer concentration. |