Main Title |
Separated Glow Conditions at Pipe Walls of Water Distribution Mains. |
Author |
Galowin, L. S. ;
|
CORP Author |
National Inst. of Standards and Technology, Gaithersburg, MD.;Environmental Protection Agency, Cincinnati, OH. Risk Reduction Engineering Lab. |
Publisher |
Mar 89 |
Year Published |
1989 |
Report Number |
EPA/600/2-89/007; |
Stock Number |
PB90-188897 |
Additional Subjects |
Public utilities ;
Pipe flow ;
Water distribution ;
Water pipelines ;
Biodeterioration ;
Fluid flow ;
Contamination ;
Scaling ;
Deposits ;
Fouling organisms ;
Corrosion ;
Water quality maintenance
|
Holdings |
Library |
Call Number |
Additional Info |
Location |
Last Modified |
Checkout Status |
NTIS |
PB90-188897 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
Collation |
106p |
Abstract |
The objectives of the research project were to develop and evaluate a method for determining residence times for separated recirculation cavity flow conditions, and to determine the rate of growth and surface ramp contours developed from particulate deposits at obstacles which induce separation and eddy formations in water mains used to distribute drinking water. Resulting biofilm formations contribute to accelerated corrosion rates, increased flow resistance, and the formation of encrustations and colonization that may lead to water quality deterioration. The dependency of conditions at the pipe wall on viscous flow parameters was identified from experiments and analysis of simulated biological growth and decay rates. |
Supplementary Notes |
Sponsored by Environmental Protection Agency, Cincinnati, OH. Risk Reduction Engineering Lab. |
NTIS Title Notes |
Final rept. |
Category Codes |
50B; 46B; 71L |
NTIS Prices |
PC A06/MF A01 |
Primary Description |
600/14 |
Document Type |
NT |
Cataloging Source |
NTIS/MT |
Control Number |
014419042 |
Origin |
NTIS |
Type |
CAT |