1 / 25

Solid and Hazardous Waste

Chapter 24. Solid and Hazardous Waste. Solid Waste. Types of Solid Waste. Solid Waste. Disposal of Solid Waste. Sanitary Landfills. Problems Associated with Sanitary Landfills. Methane gas production Surface water / ground water contamination Not a long-term remedy

kyla-stanley
Download Presentation

Solid and Hazardous Waste

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Chapter 24 Solid and Hazardous Waste

  2. Solid Waste • Types of Solid Waste

  3. Solid Waste • Disposal of Solid Waste

  4. Sanitary Landfills

  5. Problems Associated with Sanitary Landfills • Methane gas production • Surface water / ground water contamination • Not a long-term remedy • Even when closed, considerable cost

  6. Mass Burn Incinerator

  7. http://www.ecomaine.org/electricgen/index.shtm http://www.nytimes.com/2010/04/13/science/earth/13trash.html?pagewanted=all

  8. Incineration of Solid Waste CO2 emissions per kwatt-hour of electricity production

  9. Problems Associated with Incineration • Always some air pollution • Produce large amounts of ash • Site selection often controversial • NIMBY

  10. Industrial Composting • Reduces yard waste in landfills • Can be sold or distributed to community

  11. The Three R’s • Three goals: • 1) Reduce • 2) Reuse • 3) Recycle

  12. Recycling into What?

  13. The Special Problem of Plastic • Shear amount is staggering • Do not readily breakdown • Chemical Complexity Plastics have large macromolecules. When different types of plastics are melted together they tend to phase-separate, like oil and water, and set in these layers. The phase boundaries cause structural weakness in the resulting material. Another barrier to recycling is the widespread use of dyes, fillers, and other additives in plastics. Additives are less used in beverage containers and plastic bags, allowing them to be recycled.

  14. The Special Problem of Tires • Using Old Tires • Crumb Recycling • Incineration • Retreads • Low Grade Rubber

  15. Bottle Bills Energy Savings Bauxite

  16. Waste Prevention • Integrated Waste Management

  17. E-Waste 1999 average lifespan of a computer 4-6 years. 2005 it dropped to less than 2 years. Personal computers contain toxic heavy metals such as barium, cadmium, chromium, copper, zinc, nickel and lead. All of these materials are regulated by the EPA. http://www.electronicstakeback.com/2011/11/30/new-studies-show-e-waste-exports-still-harming-children-in-china-ghana/

  18. Waste = Food Pollution Prevention Act 1990 Pollution prevention is reducing or eliminating waste at the source by modifying production processes, promoting the use of non-toxic or less-toxic substances, implementing conservation techniques, and re-using materials rather than putting them into the waste stream. Under this initiative, EPA focuses on an industry-by-industry approach rather than a pollutant-by-pollutant approach to regulatory policy.

  19. Hazardous Waste • Examples:

  20. Hazardous Waste Old toxic waste dump site Cleanup • Management of Hazardous Waste • Cleaning Up Existing Toxic Waste: The Superfund Program

  21. Super Fund 1980 Superfund National Priorities List (2002) 1234 sites currently listed 259 removed from list 2008 1255 - Sites Listed 332 - Delisted 63 New sites proposed

  22. Superfund = abandoned hazardous sites • 1. A response to “The Love Canal” • 2. Where does the money come from? • 70% parties responsible pay cleanup • Those who own the site now and before • Those who transported to the site • 30% payed for by a tax on polluting companies and or state and federal funds Love Canal Part One http://www.youtube.com/watch?v=vKIM9sE0t6I&feature=related Part Two http://www.youtube.com/watch?v=MXSE9kcBQCI&feature=related Georgiahttp://www.epa.gov/region4/waste/npl/index.htm#GA

  23. Hazardous waste landfill

  24. 5 Plastic Gyres

More Related