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OREGON STATE UNIVERSITY
ENVE 431/531
Winter 2003
Transport and Fate of Organic Chemicals in Environmental Systems
4 Credits, Lectures M,W,F. 10:00-10:50, Apperson 301
Recitation Thurs. 10 -11:50. Apperson 301
Texts: Required: Water Quality - Tchobanoglous and Schroeder
Recommended (531) Environmental Modeling - Schnoor
Valley Library Reserve: Chemistry for Envir. Engineering – Sawyer, McCarty, Parkin
Course Web Site: Blackboard: http://my.oregonstate.edu/
Instructor: Dr. Lewis Semprini email [email protected]
Office: Merryfield Hall 204C; Phone 737-6895; Office Hours: MW: 3 to 5 p.m.
TA:
Sarun Tejasen, email [email protected]
104 Merryfield Hall Office Hours: Tu and Thurs: 2:00 to 4:00
CLASS SCHEDULE
READING ASSIGNMENTS
_________________________________________________________________________________________
DATE
TOPIC
Chemistry for Environmental Water Quality
Engineering
Envir. Modeling
_________________________________________________________________________________________________
Jan.
Jan
Jan
Feb
6
8
10
15
17
22
24
27
29
30
31
3
7
10
12
14
17
19
21
24
26
Introduction 1-29
Chemical Kinetics
83-92
Transformations of Organics
271-276
Partition Progesses:
Henry's Law (Liquid/Vapor)
25-26; 264-268
Sorption Soil/Water)
93-98
Multi-Media Mass Balances
Fugacity Concept
Handout
Modeling: Material Balances
Batch Reactors
Midterm 1
Batch Reactors with Multiple Phases
Completely Mixed Reactors (Steady-State)
Completely Mixed Reactors (Non-steady-state)
Transport at Interfaces (Two-Film Theory)
Completely Mixed Reactors (Lakes)
Lakes (Continued)
Rivers (BOD-model)
527-544
Rivers (DO-Sag)
River (DO-Sag cont)
Rivers Trace Chemicals
Dispersion in Rivers
231-247
1-29
94-110
305-31
122-123
322-327
310-312
327-329
336-347
248-249; 306-309
35-42
267-276
73-80
311-322
270-275; 385-386
387-399
106-121
337-351
330-336
347-365
82-87
232-243
351-355
243-258
52-56
Feb
Feb
March
March
March
March
March
March
March
27
28
3
5
7
10
12
14
20-
Midterm 2
Dispersion In River (cont:)
Mixing in Rivers and Estuaries
Ocean Outfalls
Water Quality Lakes and Reseviors
Water Quality in Groundwater Systems
Water Quality in Groundwater Sytems Cont:
Wrap-up
Final Exam 12:00 pm
351-353
353-363
363-377
383-399
405-415
415-435
281-294
347-365
455-470
470-484
ENVE 431/531 Course Objectives
The objective of the course is to develop an understanding of processes that control the fate,
distribution, and transport of organic chemicals in the environment. Kinetics and partitioning
processes as they relate to environmental contamination will be reviewed. Processes that control
the equilibrium distribution of contaminants in environmental compartments, such as air, water,
and sediments, will be discussed. Models for batch, completely mixed, and plug flow reactors
will be developed. Theory for the mass transfer between phases including: 1) partitioning; and
2) transport processes of diffusion, advection and dispersion, will be developed. Kinetic
concepts and mechanisms for chemical and biological transformations in the environment will
be presented. Simple analytical models for lakes, rivers, and estuaries, which illustrate processes
of transport and fate, will be developed. Transport and fate of chemicals in groundwater
systems will also be discussed. We will also learn to use the computer model: AQUASIM 2.0
that will permit us to construct environmental models for lakes and rivers.
Course Prerequisites ENVE 321and ENVE 421
Format: Grade Based on:
Homework (an assignment each week)
Midterms
Group Project
Final

ENVE 431
20 %
40%
40 %
ENVE 531
15 %
35 %
15 %
35 %
The ENVE 531 group project will involve the investigation of an environmental problem that is
selected by the instructor. The group will critically analyze the problem, find scientific literature
about it, and answer specific questions that are posed using methods developed in class.
Learning Objectives: EnvE 431 and Enve 531: Transport and Fate of Organic
Chemicals in Environmental Systems
At the end of this class, the student should be able to:
LO 1: Describe fundamental reaction mechanisms and apply reaction kinetics to
modeled environmental systems
LO 2: Calculate the distribution of a compound in a multi-phase system based on
theories of equilibrium partitioning and mass transfer between phases.
LO-3: Understand how the physical/chemical properties of an organic chemical
control its distribution in the environment.
LO-4: Model the dissolved oxygen concentration and deficit in a river in
response to BOD loading.
LO 5: Mathematically model steady state and transient environmental systems,
such as rivers and lakes, using first order kinetics, reactor, and partitioning
theory.
LO 6: Apply mass transfer, phase partitioning, and transformation kinetics to
model the fate of trace contaminants in rivers.
LO-7 Apply simple dispersion mixing models for rivers and estuaries.
L0-8 (531 Students) Apply knowledge of processes and modeling skills to
determine the fate of a contaminant in a complex real world setting in a
group class project.
