| Main Title |
Hydraulics of Waste Stabilization Ponds. Part I. The Effect of Hydraulic Flow Characteristics on Treatment Efficiency. Part II. The Effect of Wind Mixing in Stratified and Unstratified Ponds. |
| Author |
Watter, Gary Z. ;
Magelso, Kenneth A. ;
Georg, Robert L. ;
|
| CORP Author |
Utah Water Research Lab., Logan. |
| Year Published |
1973 |
| Report Number |
PRCWRR18-1; DI-14-31-0001-3545; OWRR-A-008-UTAH; 10414,; A-008-UTAH(4) |
| Stock Number |
PB-220 955 |
| Additional Subjects |
( Lagoons(Ponds) ;
Hydraulic models) ;
( Wind tunnel models ;
Lagoons(Ponds)) ;
Fluid flow ;
Sewage treatment ;
Stratification ;
Mixing ;
Mathematical models ;
Flow distribution ;
Diffusion ;
Baffles ;
Efficiency ;
Dyes ;
Density ;
Wind shear ;
Reynolds number ;
Utah ;
Design criteria ;
Logan(Utah) ;
Aeration ponds
|
| Holdings |
| Library |
Call Number |
Additional Info |
Location |
Last
Modified |
Checkout
Status |
| NTIS |
PB-220 955 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
| Collation |
110p |
| Abstract |
The treatment efficiency of waste stabilization ponds can be influenced significantly by the hydraulic flow patterns within the ponds. To evaluate the effects of shape and depth of the ponds, placement of inlets and outlets, baffling and density stratification an hydraulic model of the prototype Logan City ponds was constructed. The mixing properties of the model ponds were evaluated by injecting a slug of rhodamine WT dye into the inflow and measuring the dye concentration vs time at the outlet. A mathematical (finite-stage) model of the mixing process was adapted to stabilization ponds to determine if a more theoretical design was feasible. A wind-water tunnel was constructed to simulate a wind-over-water situation. A relationship between wind velocity and surface shear stress was established. Diffusion coefficients describing the wind driven mixing of an injected dye were evaluated as functions of the surface shear-velocity Reynolds number. |
