Lecture no.1(2014) - Cornell University

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CEE 3510
ENVIRONMENTAL
QUALITY ENGINEERING
Cornell University
School of Civil and Environmental Engineering
Today s topics:
• Course organization
• introduction of TAs
• office hours
• required and recommended materials
• grading and exams
• Course content
• Introduction to the societal roles of Environmental Engineers
• There will be 4 handouts today
1)  Course notes corresponding to today’s lecture
2)  Homework assignment protocol
3)  Introduction to STELLA
4)  Short topic listing and questionnaire
CEE 3510 ENVIRONMENTAL QUALITY ENGINEERING
After class is often a good
PROF: Len Lion
time for questions or to
schedule an appointment.
Office: Room 263 Hollister Hall
Hours: drop in anytime (I’ll tell you if I m too busy)
Or call 255-7571
Or, send e-mail to: [email protected]
T.A.(s):
Office:
Hours:
I. Text:
and:
and:
also:
William Pennock (whp28) & Jon Christensen (jsc377)
& Yitian Sun (ys586)
Room 359 Hollister Hall
3:30-6:30 p.m. Monday and 3:00 – 6:00 Thursday
3:00-6:00 p.m. Tuesday
4:30-7:30: p.m. Wednesday
Organizational Details
Water Quality by G. Tchobanoglous & E.D. Schroeder
(1985) [recommended]
Course Notes [required]
STELLA (version 3.0.1, or later) [recommended]
see course reserve list
Now up to version 10.0.4
II. Grading: 12 Quizzes (weekly)
2 Prelims:
Final:
Homework:
21% (top 10 scores)
21% each
21%
16%
100%
The time for
our Final will be
scheduled by the
University later in the
semester.
III. Exam Dates: Prelim#1: _______________________________
Thursday March 20th @ 7:30 p.m.
Thursday April 24th @ 7:30 p.m.
Prelim#2: __________________________________
IV. Cornell University Code of Academic Integrity
Each student in this course is expected to abide by the Cornell
University Code of Academic Integrity. Any work submitted by a
student in this course for academic credit will be the student's own
work, with the exception that group collaboration is allowed in the
submission of homework assignments.
Max group size: for STELLA = 2; for Problem sets = 4
STELLA
Structural Thinking Experimental Learning Laboratory with Animation
d(BOD)
= !k (BOD)
dt
STELLA:
ISEE Sys. asks
that I give
them a list of
students in my
class, to ensure
requests for
the student
price are valid.
BOD( t )
!
t
d(BOD)
BOD
!
= -k dt
BODo
0
BOD
decay_rate
k
BOD(t ) = BODo e !kt
The STELLA software may be
ordered directly from ISEE
Systems (URL:
http://www.iseesystems.com).
The cost is $59 for a 6 mo. limit
or $129 for a no time limit
download of the software. You
can also get a CD for an
additional $25 + shipping.
BOD(t) = BOD(t - dt) + (- decay_rate) * dt
decay_rate = k*(BOD)
20 copies of STELLA are
available for class use at CIT
PC facilities and ACCEL.
Objectives
Environmental engineers deal with the fate, behavior, prevention,
and treatment of contaminants in the air, soil and water. In this class
we will focus on how environmental engineers use models to predict
the fate of waterborne contaminants in the environment and to
design wastewater treatment systems. You will find that models of
environmental systems are interdisciplinary and to build them you
will need to integrate fundamental principals from physics,
chemistry, and biology into governing equations where reactions
and mass transport are accounted for. You will develop both
analytical and numerical solutions to these models and use them to
make predictions of contaminant effects and to design treatment
processes.
As a professional environmental engineer you will be called on to
use the problem solving processes you experience in this course as
you synthesize the physical, chemical, and biological reactions
pertinent to a given environmental problem and use them to develop
viable solutions.
COURSE TOPICS and SCHEDULE
Recommended Text:
APPROX. NO.
OF LECTURES
Water Quality by Tchobanoglous & Schroeder;
Addison-Wesley, NY (1985)
TOPIC
SUGGESTED READINGS
How do we analytically define the physical, chemical and biological
quality of water?
4
Introduction and Water
Quality Parameters
Ch.2; pp. 43-76,
89-103, 123-150
2
Water Quality Criteria &
Standards
Ch.3, pp. 163-175,
187-200, Ch.11, p.453
What water quality parameters do we pick for regulation of natural
water bodies vs. drinking water vs. wastewater discharges?
2
APPROX. NO.
OF LECTURES
Environmental Legislation
TOPIC
Ch.4, pp. 211-221
SUGGESTED READINGS
POLLUTANT ASSIMILATION IN NATURAL SYSTEMS
To what extent can natural systems adjust to accommodate societal
impacts?
1
Self-Purification of Streams
& Assimilative Capacity
What chemical and biological principles do we need to understand in order to
predict the impact of organic waste discharges on dissolved oxygen levels?
2
Microbiological Growth &
Oxygen Utilization
4
Oxygen Demand Concepts,
BOD, NOD & Reaeration
Ch.2, pp. 104-121
Ch.8, pp. 340-341
Using what we know about biological and chemical processes, how do we make
a model to predict dissolved oxygen levels?
3
Simple Dissolved Oxygen
Ch.2, pp. 121-123
Models
Ch.8, pp. 337-351,
Appendix H and I
3
Water Quality Modeling:
Transport Phenomena
Ch.5, pp. 248-251
APPROX. NO.
OF LECTURES
TOPIC
SUGGESTED READINGS
How do we use the concept of mass balance to account for transport and reaction
in aquatic systems with different types of mixing?
4
Water Quality Modeling:
Continuous Flow Models &
Applications
Ch.6, p.267-286,
291-292, 351-356,
also Metcalf & Eddy
(on reserve) p. 154163, 166-170,
845-848, Ch.6, p.
267-286, 291292, 351-356
Can we use our mass balance approach to deal with contaminants in
groundwater?
1
Contaminant Transport
in Groundwater
APPROX. NO.
OF LECTURES
TOPIC
Ch.4, pp. 406-409,
pp. 418-425
SUGGESTED READINGS
Wastewater Treatment Systems
How do we classify the constituents in municipal wastewater?
1
Wastewater Characterization
What is the typical sequence of processes used to treat municipal wastewaters?
1
Overview of Wastewater
Treatment Systems
Ch.11, pp. 451-456
Can we use our mass balance approach to design a biological reactor for treating
wastewater?
6
Unit Processes: Biological
Secondary Treatment
A unit process has a unifying
underlying mechanism. There
are often multiple applications.
Ch.14, p. 595-608
610-614, 621-623
APPROX. NO.
OF LECTURES
TOPIC
SUGGESTED READINGS
How can we modify our biological treatment process to remove nitrogen?
2
Advanced Waste Treatment
Ch.12, p. 545-550
Ch.14, p. 619-621
How do we design gravity-driven processes for particle removal from
wastewater ?
4
Unit Processes:
Sedimentation
2
Wastewater Collection
Systems
Ch.11, p. 443-456,
Ch.12, p. 465-469,
491-506
How do we design the systems that collect and transport wastewater to the
treatment plant?
Ch.1, pp. 22-30,
What happens to all the solids that we remove from wastewater during the
course of treatment?
1
Management of Residuals
(Sludge treatment)
PLUS
special short topics
Special Topics
•  We weren t going to talk about it, but since
you asked . . . .
–  Short discussions about environmentally related
topics that you suggest.
1)  See the handout list and pick topics you want to hear
about.
2)  And, suggest new topics for this year s class.
3)  Fill out the questionnaire on the last page and turn it
in (today, Friday or Monday).
CEE 3510 -- ENVIRONMENTAL QUALITY ENGINEERING
THE FOLLOWING MATERIAL IS ON RESERVE IN THE URIS LIBRARY
-------------------------------------------------------------------AUTHOR
TITLE
H. Peavy, D. Rowe & G. Tchobanoglous
Environmental Engineering
T. McGhee
Water Supply and Sewerage
Metcalf and Eddy, Inc.
Wastewater Engineering
W. Weber
Physicochemical Processes for Water Quality Control
D. Sundstrom & H. Klei
Wastewater Treatment
W. Viesmann and J. Hammer
Water Supply and Pollution Control (6th Edition)
C. Sawyer, P. McCarty, & G. Parkin
Chemistry for Environmental Engineers (4th Edition)
A. Vesilind
Introduction to Environmental Engineering
W. Eckenfelder
Principles of Water Quality Management
J.M. Montgomery Consulting Engineers
Water Treatment Principles & Design
J.C. Lamb
Water Quality & Its Control
G. Tchobanoglous & E. Schroeder
Water Quality
Amer. Water Works Assoc.
Water Quality and Treatment, 5th Edition
B.T. Ray
Environmental Engineering
G. Kiely
Environmental Engineering
J. Henry and G. Heinke
Environmental Engineering and Science
M. Davis and D. Cornwell
Introduction to Environmental Engineering (3rd Edition)
B. Rittmann and P, McCarty
Environmental Biotechnology
OVERVIEW
What do environmental engineers do?
The role of the Environmental Engineer in Society
I. Water Supply - historical perspective
primary goal?
potable water [safe to drink and use]
Ex. John Snow and the Broad St. pump:
1854 London cholera epidemic: Over 10 days, 500 people
died within 250 yards of the water pump @ Broad St.
II. Sewerage
A. Collection
B. Treatment
- isolate wastewater from water supply
and eliminate cross connections
What problems can you anticipate if wastewater is not treated?
1. Disease, waterborne
2. Diminished quality of receiving water
- damage to ecosystem
- impaired use for recreation: swimming, boating, fishing, etc.
- aesthetics
Cholera is not just a disease relegated to history
•  Nearly 640,000 people in Haiti have had
this disease since 2010.
•  Over 8,200 people have died.
Men bathing in the
Artibonite River in
Haiti, 60 miles
downstream from the
first cholera outbreak.
III.
Environment
The environmental Ethic : Perception that streams,
rivers, etc. and resident population of organisms are
important. [In and of themselves, and not just because they affect people].
Goals: 1. Understand and predict effects and fate of pollutants.
2. Remedial actions?
- clean up environment
- alter inputs
i)  by treating the source
ii)  by changing the processes used prior to the source
i.e., Green Engineering
In what type of situation might waste treatment prove to not be
feasible?
Non-point sources: Ex. Agricultural runoff, auto exhaust emissions
Episodic sources: Ex. Storm water runoff
Dispersed products with (originally) unknown effects: Ex. DDT
OVERVIEW: THE WATER USE
CYCLE
CEE 3510
River
inlet
outfall
Flow
wastewater
treatment
plant
Pump
water
treatment
plant
industry
domestic
fire
water
CEE 4520 distribution
system
or CEE 4540
City A
environmental
effects?
sludge?
W.T.P.
wastewater
collection
system
City B
etc
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