Solving Environmental Problems for

Urban Regions

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Raw Water

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FlocculationSedimentation

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Clearwell CleanWater

S1S1

Raw Water

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Welcome to ENGRI 113!

Instructor: Monroe Weber-Shirk

Teaching Assistants:Laura, Jacob, Ted, Brianne

Introductions…

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

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

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

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

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

Environmental Engineering Tasks between 2007 and 2050

Water shortages – reduce, reuse, recyclePharmaceuticals in wastewaterContaminated site remediationWaste minimizationEnvironmental Ethics

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

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

New York City Metropolitan Area

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…

*

New York Water Consumption

1.4 billion gallons/day 5.3 billion liters/day590 liters/person/day___ m3/s 58

3.9 m

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

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?

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?

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

???