## 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 90

Page 33

If velocity is in ft/sec and cross-sectional area in ft2 then the

As shown in Fig. 2.1, the

over a reach of the river using weighted markers or a dye. The time of travel t* ...

If velocity is in ft/sec and cross-sectional area in ft2 then the

**flow**is in ft3/sec (cfs).As shown in Fig. 2.1, the

**flow**can also be obtained by estimation of the velocityover a reach of the river using weighted markers or a dye. The time of travel t* ...

Page 38

weekly or minimum monthly. Also, the frequency of occurrence of the

be included, that is, the minimum

10 ...

**flows**can be considered; for example, minimum daily**flow**of record or minimumweekly or minimum monthly. Also, the frequency of occurrence of the

**flow**mustbe included, that is, the minimum

**flow**one might expect each year or every 5 or10 ...

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TABLE 2.6 COEFFICIENTS FOR ESTIMATING ANNUAL AND SEPTEMBER

MEAN

Eastern Qa 9.52 . 10 4 1.00 1.59 0.3 11 Q, 1.57 . 10 5 1.06 2.90 - 0.28 24 Central

Qa ...

TABLE 2.6 COEFFICIENTS FOR ESTIMATING ANNUAL AND SEPTEMBER

MEAN

**FLOW**Coefficient"**Flow**Standard Region index" a b, b2 b3 b4 error(%)Eastern Qa 9.52 . 10 4 1.00 1.59 0.3 11 Q, 1.57 . 10 5 1.06 2.90 - 0.28 24 Central

Qa ...

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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 downstream effect effluent epilimnion estimate estuary eutrophication Figure finite difference fish flow given heat Hydroscience hypolimnion increase indicated input lake lb/day load loss rate m/day mass balance maximum measured mg/C mg/l NBOD nitrification nitrogen Note nutrient organic outfall oxidation parameters particulate partition coefficient phosphorus photosynthesis phytoplankton plant point source range ratio reaeration 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