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 51
... outfall , the notation of Fig . 2.9 provides the starting point . The principal statement for the mass balance is : Mass rate of substance upstream + mass rate added by outfall = mass rate of substance immediately downstream from outfall ...
... outfall , the notation of Fig . 2.9 provides the starting point . The principal statement for the mass balance is : Mass rate of substance upstream + mass rate added by outfall = mass rate of substance immediately downstream from outfall ...
Page 308
... outfall . ( 6.86 ) Equations 6.83 to 6.86 represent the DO response in a river due to a single point source discharge of CBOD . It can be noted ( Eq . 6.85 ) that the critical deficit ( D ) or minimum level of DO ( min ) is linear to ...
... outfall . ( 6.86 ) Equations 6.83 to 6.86 represent the DO response in a river due to a single point source discharge of CBOD . It can be noted ( Eq . 6.85 ) that the critical deficit ( D ) or minimum level of DO ( min ) is linear to ...
Page 444
... outfall is an important parameter to be specified . At high initial chlorophyll levels at the outfall , the time of travel to reach the ultimate concentration of phytoplankton is markedly reduced since a sufficient " seed " biomass ...
... outfall is an important parameter to be specified . At high initial chlorophyll levels at the outfall , the time of travel to reach the ultimate concentration of phytoplankton is markedly reduced since a sufficient " seed " biomass ...
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