## 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. |

### From inside the book

Results 1-3 of 81

Page 48

referred to as the Manning equation (Chow, 1959). This equation relates average

stream

inversely to a channel roughness coefficient: U- — Rl'X'2 (2-12) n where U =

average ...

referred to as the Manning equation (Chow, 1959). This equation relates average

stream

**velocity**directly to the channel bed slope and hydraulic radius andinversely to a channel roughness coefficient: U- — Rl'X'2 (2-12) n where U =

average ...

Page 335

Assuming that the tidal

freshwater

true

the ...

Assuming that the tidal

**velocity**is sinusoidal and that the vector sum of thefreshwater

**velocity**and the instantaneous tidal**velocity**adequately represents thetrue

**velocity**, U0 + ut sin u = (6.113) where U0 is the freshwater**velocity**and w, isthe ...

Page 628

net settling

solids >/ overall net loss rate of chemical '/. loss of chemical due to sediment

interaction »Td dissolved chemical loss rate ». solids resuspension

net settling

**velocity**of solids °f phytoplankton net settling rate '. settling**velocity**ofsolids >/ overall net loss rate of chemical '/. loss of chemical due to sediment

interaction »Td dissolved chemical loss rate ». solids resuspension

**velocity**HI ...### What people are saying - Write a review

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### Contents

Rivers and Streams | 29 |

Estuaries Bays and Harbors | 91 |

Lakes | 173 |

Copyright | |

8 other sections not shown

### Other editions - View all

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 constant decay rate deficit depth discharge dispersion coefficient dissolved oxygen distribution downstream effect effluent epilimnion estimate estuary eutrophication Figure finite difference fish flow given heat Hydroscience hypolimnion increase indicated input lake layer lb/day load loss rate m/day mass balance maximum measured mg/l NBOD nitrification nitrogen Note nutrient organic outfall oxidation parameters particulate partition coefficient phosphorus photosynthesis phytoplankton plant point source range ratio reduced relationship respiration result river runoff salinity Sample Problem saturation sediment segment settling shown in Fig shows steady stream substance surface Table Thomann tidal Toro total phosphorus toxicant treatment upstream uptake USEPA values variable velocity vertical waste water body water column water quality water quality modeling water temperature zero zooplankton