solving environmental problems for urban regions s 1 raw water alum qt s 2 s 4 m 1 s 3 flocculation...
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Solving Environmental Problems for
Urban Regions
S1
Raw Water
alum
Q T
S2
S4
m1
S3
FlocculationSedimentation
p1S5
Clearwell CleanWater
S1S1
Raw Water
alum
QQ TT
S2S2
S4S4
m1m1
S3S3
FlocculationSedimentation
p1p1S5S5
Clearwell CleanWater
Welcome to ENGRI 113!
Instructor: Monroe Weber-Shirk
Teaching Assistants:Laura, Jacob, Ted, Brianne
Introductions…
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Course Logistics
Homework due in section or by email by 5 p.m. on the day listed on the syllabus
Teams for homework and for drinking water treatment plant
Fill out survey form today if you haven’t yet
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Resources...
Teaching AssistantsCourse web site
www.cee.cornell.edu/mw24/engri113/Course schedule Course notes (as they are completed)Homework assignments (and solutions
eventually)Readings
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Environmental Engineering
Protecting the environment from the potentially deleterious effects of human activity
Improving environmental quality for human health and well-being
How has environmental engineering affected you today?
Reducing, Reusing, Recycling to eliminate excess waste of resources
Disposing of waste (sewage, garbage...)
What about the space we use, the CO2 we emit...
Clean (and convenient!) drinking water
Clean air
Clean wastewater
Clean soil
teams
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Let me tell you about the world I’d like to see
First, I would like to see the water, ground, and air not polluted. As in, not having chemicals dumped in somehow. Like, for the air, no burning plastic or Styrofoam. For the water, no trash or oil being dumped in. For the ground, no littering, and for the air, no smog or smoke.
Second, no endangered species, no animal over population, when trees are cut another is planted in its place, and I would also like no more rainforest cutting.
Third, for people, I would like to see more kindness, cooperation, and more respect for the world we share.
That is the world I would like to see.Coby Weber-Shirk (age 7)2003
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Environmental Engineering Tasks between 2007 and 2050
Safe drinking water for everyoneWastewater treated before discharge to the
environment everywherePublic policy: politicians or advisors to
politiciansMaintaining and upgrading the
infrastructure
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Environmental Engineering Tasks between 2007 and 2050
Water shortages – reduce, reuse, recyclePharmaceuticals in wastewaterContaminated site remediationWaste minimizationEnvironmental Ethics
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Solving Environmental Problems for Urban Regions
Water supplyWhere does the water come from?How much water is needed?How does it get to the cities? Is the water safe to drink?How is the water purified?
Solid waste managementHow much garbage do we produce?Where is it all going?What are the alternatives?
Case study:NYC
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Major World Cities(Metropolitan Areas)
"Th. Brinkhoff: Die größten Agglomerationen und Städte der Welt, http://www.citypopulation.de/index_d.html , 11.05.2002"
City Countrypop.
(millions) extentTōkyō Japan 33.9 incl. Yokohama, Kawasaki
Ciudad de México Mexico 22.2 incl. Nezahualcóyotl, Ecatepec, Naucalpan
Seoul (Sŏul) South 22.0 incl. Bucheon, Goyang, Incheon, Seongnam, Suweon
New York USA 21.8 incl. Newark, Paterson
São Paulo Brazil 19.9 incl. Guarulhos
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New York City Metropolitan Area
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New York City Statistics
Population ________Area ________ 310 sq miPop. Density ________ 23,700/sq
miWater consumption ____ liters/person/day
7.3 million
800.0 km2
9100/km2
590
Take a guess…
*
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New York Water Consumption
1.4 billion gallons/day 5.3 billion liters/day590 liters/person/day___ m3/s 58
3.9 m
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New York City Water
Where does New York City’s water come from?
How does the water get to all the buildings?Where does the water go when it “goes
down the drain”
Could NYC get its water from the rainfall on the City?
Solution
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Drinking Water Treatment for NYC?
Sierra Club: “City would spend 1.5 billion [to build a filtration plant] instead of protecting Croton watershed”
NYC Department of Environmental Protection: “Of the 7,400 surface drinking water supplies in the U.S. at least 7,310 have filtration plants designed to insure that the water these systems provide to their consumers is safe.”
ENGRI 113: What do you think?
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Water Treatment Plant Project
Goal: Design, build, operate, and automate a miniature drinking water treatment plant.
Here's your chance to develop your engineering skills!
LogisticsForm teamsMax of 4 teams per section Review schedule
syllabusDrivers for field trip?
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Could NYC get its water from the rainfall on the City?
Annual Rainfall ____________
NYC consumption ___________________5.3 billion liters/day
1 m/yr
NYC area ___________________800.0 km2
How could we convert the consumption into a velocity with units of m/yr?
6 35.3×10 m
day 2
1×
800 km
2
6 2
1 km×
1×10 m
365.25d×
yr= 2.4 m/yr
???