Principles of Surface Water Quality Modeling and ControlThis book teaches the fundamentals and principles which underlie the mathematical modeling techniques used to analyze the quality of surface waters. The text first provides an overview of the different bodies of water in which water quality problems need to be addressed before examining specific problems that occur across all bodies of water. |
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Page 33
... velocity . 4. Average the velocity from the 0.8 and 0.2 depth measurements . In shallow waters , a single velocity at 0.6 of the depth may be used . If velocity is in ft / sec and cross - sectional area in ft2 then the flow is in ft3 ...
... velocity . 4. Average the velocity from the 0.8 and 0.2 depth measurements . In shallow waters , a single velocity at 0.6 of the depth may be used . If velocity is in ft / sec and cross - sectional area in ft2 then the flow is in ft3 ...
Page 48
... velocity directly to the channel bed slope and hydraulic radius and inversely to a channel roughness coefficient : U = where U = average velocity in fps n = roughness coefficient R1 = hydraulic radius in ft h = A ÷ P 1.49 A = cross ...
... velocity directly to the channel bed slope and hydraulic radius and inversely to a channel roughness coefficient : U = where U = average velocity in fps n = roughness coefficient R1 = hydraulic radius in ft h = A ÷ P 1.49 A = cross ...
Page 628
... velocity L / T UT tidal velocity L / T Uw wind velocity L / T U * river shear velocity V UT U ( t Un Vs to ) unit step function volume sedimentation velocity net settling velocity of solids phytoplankton net settling rate settling ...
... velocity L / T UT tidal velocity L / T Uw wind velocity L / T U * river shear velocity V UT U ( t Un Vs to ) unit step function volume sedimentation velocity net settling velocity of solids phytoplankton net settling rate settling ...
Contents
Rivers and Streams | 29 |
Estuaries Bays and Harbors | 91 |
Lakes | 173 |
Copyright | |
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Principles of Surface Water Quality Modeling and Control Robert V. Thomann,John A. Mueller No preview available - 1987 |
Common terms and phrases
analysis approximately aquatic assumed average bacteria biomass calculated CBOD CBODU chemical chlorophyll coliform completely mixed concentration decay rate deficit depth discharge dispersion coefficient dissolved oxygen distribution downstream effect effluent epilimnion equation estimate estuary eutrophication Figure finite finite difference flow ft² given growth Hydroscience hypolimnion input K₁ lake Lake Huron Lake Ontario lb/day load loss rate m/day m³/s mass balance maximum mg/l NBOD nitrification nitrogen nutrient organic outfall parameters particulate partition coefficient phosphorus photosynthesis phytoplankton plant point source ratio reaeration reduced result river runoff salinity Sample Problem saturation sediment segment shown in Fig steady stream substance surface Table Thomann tidal Toro total phosphorus toxicant treatment upstream uptake USEPA V₁ values variable velocity waste water body water column water quality water quality modeling water temperature zero zooplankton µg/l