Watershed & Water Quality Modeling Technical Support Center WASP7 Course Dissolved Oxygen Processes Processes and Equations Implemented in WASP7 Eutrophication.

Slides:



Advertisements
Similar presentations
Water Quality Indicators
Advertisements

Environmental Time Functions & Segment Parameters.
Flood Profile Modeling with Split Flows and Weirs
Advective Flows. Watershed & Water Quality Modeling Technical Support Center Surface Water Flow Options 1.Specified river, tributary flows (net flow)
Geographical Information System & Modelling LIFE02/ENV/P/
Lecture 13: Introduction to Environmental Engineering
Earth Systems and Interactions
B1.5 Energy in biomass Pyramids of biomass Energy transfers Decay processes Carbon cycle Recycling organic waste.
CEE Fall, 2007 CEE 5134 Deoxygenation – Reaeration and the The Streeter-Phelps Equation Thomas J. Grizzard 25 October, 2007.
Introduction to the WASP Interface
Ecology PART III.
Human Influence on Ecosystems. Effects of Pesticides on Ecosystems Rachel Carson Silent Spring Birth of the Environmental Movement.
CE Introduction to Environmental Engineering and Science
Rio Blanco Watershed The Rest of the Story. Located Northwest of Guadalajara, Mexico Located Northwest of Guadalajara, Mexico Physical Characteristics.
Do now! Can you finish the “fractional distillation” sheet you started on Friday? Can you also look through the comments in your book?
Water Quality Management in Rivers
WASP7 Course Boundary Conditions & Pollutant Loads.
Progress in Implementing the EPA WASP Model for Narragansett Bay 1 Lucner Charlestra 1, Edward Dettmann 2 1 Postdoc., USEPA, Atlantic Ecology Div.,
Fresh Water Systems Parkside Junior High 2010/11 Mrs. Doig-Gray and Mrs. Friesen.
WASP7 Course Organic Chemical Model Summary of Process Equations and Model Input Data.
Biogeochemical Cycles
Scheme of the equilibrium Environmental Compartments Model.
Temperature and DO Temperature  A measure of heat Dissolved Oxygen (DO)  The concentration of oxygen (gas) which is dissolved in water. Both are important.
Area IIE: The Living World Natural Biogeochemical Cycles.
Environmental Modeling Steven I. Gordon Ohio Supercomputer Center June, 2004.
AQUATIC WATER QUALITY MODELLING
Courtney K. Harris Virginia Institute of Marine Sciences In collaboration with Katja Fennel and Robin Wilson (Dalhousie), Rob Hetland (TAMU), Kevin Xu.
Chemicals are recycled between organic matter and abiotic reservoirs
SJR DO Depletion Modeling Progress Update Andy Thuman, P.E. (HydroQual) Laurie De Rosa (HydroQual) Russ Brown, Ph.D. (Jones.
Watershed & Water Quality Modeling Technical Support Center WASP7 Course Sediment Transport.
Review of DWSC Modeling- what should we do next? Russ Brown, Jones & Stokes DO-TMDL Technical Work Group May 16,2006.
Ecosystems and their Components
What is a Watershed? An area of land, from ridge top to ridge top, that collects, stores, and releases water to a common point, such as a river or a lake.
Ecology Review Jeopardy. The percentage of energy that is passed onto the next trophic level.
Water cycle- Cycling maintains homeostasis (balance)
OXYGEN BALANCE OF RIVERS. BALANCE ORGANIC MATTER (C, N) DECAY SEDIMENT DEMAND RESPIRATION ATMOSPHERIC DIFFUSION PHOTOSYNTHESIS TRIBUTARIES V dC/dt = IN.
WLRD Science Seminar Sammamish River Water Quality Model Status Report November 19, 2002.
Copyright ©2010 by Pearson Education, Inc. Upper Saddle River, New Jersey All rights reserved. Introduction to Environmental Engineering, First Edition.
Introduction to WASP7 Eutrophication Module
An Introduction To Modeling of Surface Waters For TPDES Permits Mark A. Rudolph, P.E. TCEQ Water Quality Division.
MODELLING CARBON FLOWS IN CROP AND SOIL Krisztina R. Végh.
By Jim Bowen, UNC Charlotte presented at Multi-Media Modeling Workshop
Water Chemistry. Water quality of ecosystems is dependent on chemical, physical, and biological factors. When substances in water are harmful to the organisms.
Science Test Study Guide Chapter 5 The Nonliving Environment.
Water Chemistry. In your notes… What 3 factors play a role in determining the health of an ecosystem? What 3 factors play a role in determining the health.
In pairs… Discuss and write down ways you think we can detect pollution in: – Air – Soil – Water.
Biotic(living) parts of an environment. The organisms that live together and interact with one another.
- 2.2 – ORGANIC MATTER (Diederik Rousseau UNESCO-IHE Institute for Water Education Online Module Water Quality Assessment 2.
Nitrogen Nitrogen problems in water quality Cause of problems – nitrification: oxygen depletion denitrification: loss of nitrogen eutrophication: algae.
Dissolved oxygen (DO) in the streams
Matter cycles within ecosystems energy flows unidirectionally through ecosystems matter cycles at local and global scales movement of elements among various.
Sources of Oxygen Demand in the Lower San Joaquin River, California
Water Quality Rice Creek Watershed.
What is the hydrosphere and how does it influence the environment?
Integrated Watershed Management
Elizabeth River PCB TMDL Study: Numerical Modeling Approach
Introduction If nontoxic organic pollutants get discharged into a river, lake or stream, they should be pretty harmless, right?
James River PCB TMDL Study: Numerical Modeling Approach
Neuse Estuary Eutrophication Model
Introduction to WASP7 Eutrophication Module
Matter cycles • Organisms are reservoirs of these atoms, in various forms • Organisms are part of the cycling of these atoms, via various metabolic processes.
Introduction To Life.
Eutrophication Processes
Example A city of 200,000 people discharges 37.0 cfs of treated sewage having an ultimate BOD of 28.0 mg/L and 1.8 mg/L DO into a river with a flow of.
SJR Technical Working Group March 25, 2004
Environmental Time Functions & Segment Parameters
Introduction to the WASP Interface
Dissolved Oxygen Processes
Presentation transcript:

Watershed & Water Quality Modeling Technical Support Center WASP7 Course Dissolved Oxygen Processes Processes and Equations Implemented in WASP7 Eutrophication Module

Watershed & Water Quality Modeling Technical Support Center WASP7 Course Eutrophication - DO Interactions

Watershed & Water Quality Modeling Technical Support Center WASP7 Course Reaereation CBOD 1 CBOD 2 CBOD 3 PhytoplanktonPhytoplanktonPeriphytonPeriphyton DissolvedOxygenDissolvedOxygen SedimentOxygenDemandSedimentOxygenDemand DetritusDetritusDeathDissolution Photosynthesis and Respiration Organic Decay DO Balance Processes

Watershed & Water Quality Modeling Technical Support Center WASP7 Course Streeter-Phelps with SOD DODO BOD 1 CO 2 Reaeration Settling and Deposition of Organic Matter Sediment Oxygen Demand CarbonaceousDeoxygenation Sediment

Watershed & Water Quality Modeling Technical Support Center WASP7 Course DetritusDetritus CBOD1 CBOD2 CBOD3 Boundaries & Loads Phytoplankton Death * Carbon Content Periphyton Death * Carbon Content Fraction * Detritus Dissolution SourcesSinks User Specifies Model Calculated Dissolution = Dissolution Rate * Theta ** Temp – 20 °

Watershed & Water Quality Modeling Technical Support Center WASP7 Course Sources & Sinks

Watershed & Water Quality Modeling Technical Support Center WASP7 Course BOD in WASP Best to convert BOD to Ultimate BOD ValuesBest to convert BOD to Ultimate BOD Values Three BOD ClassesThree BOD Classes –Fast, Medium, Slow (Labile to Refractory) –Biotic (Algae/Benthic Algae), Abiotic, WWTP –Varying Decay, F Ratios based on Sources

Watershed & Water Quality Modeling Technical Support Center WASP7 Course BOD1BOD1 BOD2BOD2 BOD3BOD3Phytoplankton Death * Carbon Content Periphyton Boundaries & Loads DODO BOD Decay * Theta **T-20 BOD Decay * Theta ** T-20

Watershed & Water Quality Modeling Technical Support Center WASP7 Course CBOD

Watershed & Water Quality Modeling Technical Support Center WASP7 Course Model Parameters for BOD

Watershed & Water Quality Modeling Technical Support Center WASP7 Course Sediment Oxygen Demand

Watershed & Water Quality Modeling Technical Support Center WASP7 Course Simulated SOD

Watershed & Water Quality Modeling Technical Support Center WASP7 CourseReaeration

Watershed & Water Quality Modeling Technical Support Center WASP7 Course Reaeration Options Global ReaerationGlobal Reaeration Segment Specific ReaerationSegment Specific Reaeration User DefinedUser Defined –User Selections Covar’s MethodCovar’s Method Dam ReaerationDam Reaeration This options sets the rate for the whole networkUser Specifies which EquationSetting to Zero WASP Selects This Sets Rate for Segment Specify Dam Characteristics

Watershed & Water Quality Modeling Technical Support Center WASP7 Course Reaeration Options Rivers & StreamsRivers & Streams –O’Connor-Dobbins –Churchill –Owens U (mps) H (m) Ka (per day)

Watershed & Water Quality Modeling Technical Support Center WASP7 Course Reaeration Coefficients

Watershed & Water Quality Modeling Technical Support Center WASP7 Course Dam Reaeration Where: r = ratio of deficit above and below the dam H = difference in water elevation (meters) T = water temperature (°C) a = water quality coefficient b = dam-type coefficient (Chapra, 1997)

Watershed & Water Quality Modeling Technical Support Center WASP7 Course Dam Reaeration Polluted State A Gross0.65 Moderate1.0 Slight1.6 Clean1.8 Water Quality Coefficient Dam Type b Flat broad-crested regular step 0.70 Flat broad-crested irregular step 0.80 Flat broad-crested vertical face 0.60 Flat broad-crested straight-slope face 0.75 Flat broad-crested curved face 0.45 Round broad-crested curved face 0.75 Sharp-crested straight slope face 1.00 Sharp crested vertical face 0.80 Sluice gates 0.05 Dam Type Coefficients

Watershed & Water Quality Modeling Technical Support Center WASP7 Course Wind Driven Reaeration 10 Meters Above Water Surface Wind Speed m/sec (Time Function) Air Temperature °C (Time Function) Water Temperature °C (Segment Parameter and/or Time Function) Simulated by Hydrodynamic Model Jour. of Env Eng, Vol. 109, NO.3, PP , June 1983, Author: D.J. O'Connor, TITLE: "Wind Effects on Gas- Liquid Transfer Coefficients" KA Wind

Watershed & Water Quality Modeling Technical Support Center WASP7 Course

Watershed & Water Quality Modeling Technical Support Center WASP7 Course Modified Streeter-Phelps DODO CBOD 1 CO 2 Reaeration Settling Sediment Oxygen Demand CarbonaceousDeoxygenation Sediment NBOD 2 NO 3 NitrogenousDeoxygenation Settling 1 use BOD1; 2 use BOD2

Watershed & Water Quality Modeling Technical Support Center WASP7 Course Nitrogenous BOD

Watershed & Water Quality Modeling Technical Support Center WASP7 Course Modified Streeter-Phelps Input

Watershed & Water Quality Modeling Technical Support Center WASP7 Course Temperature Dependency Where: KTKTKTKT The value of variable at the local temperature, T (°C) The value of the variable at 20 °C Ө The empirical constant for each temperature dependent system variable, user specified

Watershed & Water Quality Modeling Technical Support Center WASP7 Course Linear DO Balance DODO BOD 1 CO 2 Reaeration Settling Sediment Oxygen Demand CarbonaceousDeoxygenation NH 3 Settling NO 3 Org-NOrg-N Phyto PhotosynthesisRespiration Nitrification Mineralization

Watershed & Water Quality Modeling Technical Support Center WASP7 Course Linear DO Balance Input

Watershed & Water Quality Modeling Technical Support Center WASP7 Course Measuring Photosynthesis & Respiration