Chapter 23 Solid and Hazardous Waste - PowerPoint PPT Presentation

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Chapter 23 Solid and Hazardous Waste

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Title: Chapter 23 Solid and Hazardous Waste


1
Chapter 23Solid and Hazardous Waste
2
Question of the day
  • From when you woke up till APES class, make a
    list of all the things you have thrown away?
  • Do you think about the packaging of a product
    before you buy it? (How about those
    Starbucks/Wawa cups?)
  • How often do you reuse objects, recycle objects?

3
Question of the day
  • List the top five materials that you think get
    thrown away into landfills.
  • At your house, what would be your top five
    materials thrown away.

4
Overview of Chapter 23
  • Solid Waste
  • Types of Solid Waste
  • Waste Prevention
  • Reducing the Amount of Waste
  • Reusing Products
  • Recycling Materials
  • Hazardous Waste
  • Types of Hazardous Waste
  • Management of Hazardous Waste
  • Environmental Justice

5
Activity
  • In small groups, you are going to research an
    assigned recycling topic.
  • Write down some facts and information on easel
    paper. Present to class your topic.
  • Read selected article.
  • Summarize article in one paragraph. Be able to
    teach someone else about your article. Include
    some facts and figures.

6
Solid Waste
  • US generates more solid waste per capita than any
    other country
  • 1.98 kg per person per day
  • Types of Solid Waste
  • Municipal solid waste
  • Solid material discarded by homes, office
    buildings, retail stores, schools, hospitals,
    prisons, etc
  • Relatively small portion of solid waste produced
  • Non-municipal solid waste
  • Solid waste generated by industry, agriculture,
    and mining

7
Zero waste family
  • http//nomoredirtylooks.com/tag/zero-waste-family/

8
Composition of Municipal Solid Waste
9
Disposal of Solid Waste
  • Three methods
  • Sanitary Landfills
  • Incineration
  • Recycling

10
Sanitary Landfill
  • Compacting and burying waste under a shallow
    layer of soil
  • Most common method of disposal

11
Chester County Solid Waste Authority
  • http//www.chestercountyswa.org/

12
Sanitary Landfill
  • Problems
  • Methane gas production by microorganisms
  • Contamination of surface water ground water by
    leachate
  • Not a long-term remedy
  • Few new facilities being opened
  • Closing a full landfill is very expensive

13
Sanitary Landfill
  • Special Problem of Plastic
  • Much of plastic is from packaging
  • Chemically stable and do not readily break down
    and decompose
  • Special Problem of Tires
  • Cannot be melted and reused for tires
  • Made from materials that cannot be recycled
  • Can be incinerated or shredded

14
Tires
  • http//tire-conversion.com/index.php/why-we-recycl
    e/general-information
  • Household Hazardous Waste Days
  • Chester County, PA http//www.chestercountyswa.org
    /pdf/LHSchedule.pdf
  • Delaware County, PA http//www.co.delaware.pa.us/r
    ecycle/hhw.html

15
The Plastic problem
  • Pacific Ocean Garbage Issue
  • DVD-Clip from Wired Science

16
Question of the day
  • Why is plastic debris a problem in our oceans?
  • What is the name of the garbage patch in the
    Pacific Ocean?
  • How could you help reduce this plastic burden?

17
Incineration
  • Volume of solid waste reduced by 90
  • Produces heat that can make steam to generate
    electricity
  • Produce less carbon emissions than fossil fuel
    power plants (right)

18
Incineration
  • Types of Incinerators
  • Mass burn (below)
  • Modular
  • Refuse-derived

19
Incinerator
  • Problems Associated with Incineration
  • Yields air pollution
  • Produce large amounts of ash
  • Site selection often controversial

20
Chester, PA Trash to Steam Plant
  • http//www.delcotimes.com/articles/2009/07/06/news
    /doc4a51b600e9972546641127.txt?viewmodefullstory
  • http//www.covantaenergy.com/en/list-of-facilities
    /videos.aspx

21
Composting
  • Includes
  • Food scraps
  • Sewage sludge
  • Agricultural manure
  • Yard waste
  • Reduces yard waste in landfills
  • Can be sold or distributed to community

22
Dive!
  • http//www.youtube.com/watch?v0HlFP-PMW6E
  • Interesting concept

23
How to yard compost?
  • http//www.youtube.com/watch?vZqWTYB_XLwEfeature
    related

24
Waste Prevention
  • Three Goals
  • (1) Reduce the amount of waste
  • (2) Reuse products
  • (3) Recycle materials

25
Reducing Waste
  • Purchase products with less packaging

26
Reducing Waste
  • Source reduction
  • Products are designed and manufactured in ways
    that decrease the volume of solid waste in the
    waste stream
  • Pollution Prevention Act (1990)
  • Dematerialization
  • Progressive decrease in the size and weight of a
    product as a result of technological improvements

27
Reusing Products
  • Refilling glass beverage bottles
  • Heavier glass that costs more
  • Japan recycles almost all bottles
  • Reused 20 times

28
Recycling Materials
  • Every ton of recycled paper saves
  • 17 trees
  • 7000 gallons of water
  • 4100 kwatt-hrs of energy
  • 3 cubic yards of landfill space
  • Recycle
  • Glass bottles, newspapers, steel cans, plastic
    bottles, cardboard, office paper

29
Recycling
  • Recycling Paper
  • US recycles 50
  • Many developed countries are higher
  • Recycling Glass
  • US recycles 25
  • Costs less than new glass
  • Can be used to make glassphalt (right)

30
Recycling
  • Recycling Aluminum
  • Making new can from recycled one costs far less
    than making a brand new one

31
Recycling
  • Recycling Metals other than Aluminum
  • Lead, gold, iron, steel, silver and zinc
  • Metallic composition is often unknown
  • Makes recycling difficult
  • Recycling Plastic
  • Less than 20 is recycled
  • Less expensive to make from raw materials

32
Recycling
  • Recycling Tires
  • Few products are made from old tires
  • Playground equipment
  • Trashcans
  • Garden hose
  • Carpet
  • Roofing materials
  • 36 of tires are currently recycled to make other
    products

33
Upcycle- Todays Project-. Create! Creativity!
  • Terracycle
  • Freecycle

34
Examples
35
Recycling research continued
  • Finish posters from previous week and share out

36
Single Stream recycling
  • http//www.youtube.com/watch?vJ_RWqgXcP_k

37
Cell phone recycling
  • http//www.youtube.com/watch?vsCU4o_Ce9PMNR1fe
    aturefvwp
  • The AfterLife of Cell Phones
  • http//www.nytimes.com/2008/01/13/magazine/13Cellp
    hone-t.html?pagewantedall_r0
  • Terracycle- video and website

38
Integrated Waste Management
39
Question of the day
  • 1. What qualifies as hazardous waste?
  • 2. Why do you think it needs separate disposal?
  • What is Superfund? (just guess)

40
Hazardous Waste
  • Any discarded chemical that threatens human
    health or the environment
  • Reactive, corrosive, explosive or toxic chemicals
  • Types of Hazardous Waste
  • Dioxins
  • PCBs
  • Radioactive waste

41
Management of Hazardous Waste
  • Chemical accidents
  • National Response Center notified
  • Typically involves oil, gasoline or other
    petroleum spill
  • Current Management Policies
  • Resource Conservation and Recovery Act (1976,
    1984)
  • Comprehensive Environmental Response,
    Compensation, and Liability Act (1980)

42
Resource Conservation and Recovery Act (1976,
1984)
  • The Resource Conservation and Recovery Act (RCRA)
    gives EPA the authority to control hazardous
    waste from the "cradle-to-grave." This includes
    the generation, transportation, treatment,
    storage, and disposal of hazardous waste. RCRA
    also set forth a framework for the management of
    non-hazardous solid wastes. The 1986 amendments
    to RCRA enabled EPA to address environmental
    problems that could result from underground tanks
    storing petroleum and other hazardous substances.
  • HSWA - the Federal Hazardous and Solid Waste
    Amendments - are the 1984 amendments to RCRA that
    focused on waste minimization and phasing out
    land disposal of hazardous waste as well as
    corrective action for releases. Some of the other
    mandates of this law include increased
    enforcement authority for EPA, more stringent
    hazardous waste management standards, and a
    comprehensive underground storage tank program.

43
Management of Hazardous Waste
  • Cleaning up existing hazardous waste superfund
    program
  • 400,000 waste sites
  • Leaking chemical storage tanks and drums (right)
  • Pesticides dumps
  • Piles of mining wastes
  • Must be cleaned up

44
Love Canal
  • First site of its kind. Sparked CERCLA.
  • (aka Superfund)
  • http//www.youtube.com/watch?vvKIM9sE0t6Isafety_
    modetruepersist_safety_mode1safeactive
  • http//upload.wikimedia.org/wikipedia/commons/2/2c
    /Hooker_Electrochemical_Quit_Claim_Deed_to_Board_o
    f_Education.pdf

45
Case-In-Point Hanford Nuclear Reservation
46
Management of Hazardous Waste
  • Superfund National Priorities List
  • 2006 1558 sites on the list
  • States with the greatest number of sites
  • New Jersey (115)
  • California (93)
  • Pennsylvania (93)
  • New York (86)
  • Michigan (65)

47
Superfund What is it?
  • Superfund is the name given to the environmental
    program established to address abandoned
    hazardous waste sites. It is also the name of the
    fund established by the Comprehensive
    Environmental Response, Compensation and
    Liability Act of 1980, as amended (CERCLA
    statute, CERCLA overview). This law was enacted
    in the wake of the discovery of toxic waste dumps
    such as Love Canal and Times Beach in the 1970s.
    It allows the EPA to clean up such sites and to
    compel responsible parties to perform cleanups or
    reimburse the government for EPA-lead cleanups.

48
Management of Hazardous Waste
  • Biological Treatment of Hazardous Chemicals
  • Bioremediation
  • Phytoremediation
  • Management the Waste we are Producing Now
  • (1) source reduction
  • (2) conversion to less hazardous materials
  • (3) long-term storage

49
Management of Hazardous Waste
  • Hazardous Waste Landfill

50
Environmental Justice
  • Environmental Justice and Ethical Issues
  • Right of every citizen, regardless of age, race,
    gender, social class, to adequate protection from
    environmental hazards
  • Fundamental human right
  • Grassroots campaign
  • Mandating environmental Justice- Federal
    Level-Clinton 1994, 1997 case in LA, nuke
    facility(Ur processing plant)

51
Environmental Justice
  • International Waste Management
  • Developed countries sometimes send their waste to
    developing countries
  • Less expensive than following laws within the
    country
  • Controversial aspect of waste management
  • Basel Convention (1989)
  • Restricts international transport of hazardous
    waste
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