Chapter 24 Solid and Hazardous Wastes. Types of Solid Waste  Municipal solid waste  Relatively small portion of solid waste produced  Non-municipal

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<ul><li><p>Chapter 24Solid and Hazardous Wastes</p></li><li><p>Types of Solid WasteMunicipal solid wasteRelatively small portion of solid waste producedNon-municipal solid wastewaste from industry, agriculture, and mining</p><p> Municipal Solid Waste</p></li><li><p>Disposal of Solid WasteThree methodsSanitary LandfillsIncinerationRecycling</p></li><li><p>Sanitary Landfill</p></li><li><p>Sanitary LandfillProblemsMethane gas Contamination of surface &amp; ground waterNot a long-term remedyFew new facilities being openedClosing a full landfill is very expensive </p></li><li><p>Special Problem: Plastic</p><p>Special Problem: Tirescannot be recycledCan be incinerated or shreddedSanitary Landfill 300 million tires are scrapped or dumped per year!</p></li><li><p>IncinerationProsVolume of solid waste reduced by 90%Produces heat that can make steam to generate electricityProduce less carbon emissions than fossil fuel power plantsConsByproductash </p></li><li><p>Waste PreventionThree Goals: (The 3 Rs)(1) REDUCE the amount of waste(2) Reuse products (3) Recycle materials</p></li><li><p>CompostingReduces yard waste in landfillsCan be sold or distributed to community </p></li><li><p>Reducing WastePurchase products with less packaging </p></li><li><p>Reusing ProductsRefilling glass beverage bottlesJapan recycles almost all bottlesReused 20 times </p></li><li><p>Recycling MaterialsEvery ton of recycled paper saves:17 trees7000 gallons of water4100 kwatt-hrs of energy3 cubic yards of landfill spaceRecycleGlass bottles, newspapers, steel cans, plastic bottles, cardboard, office paper </p></li><li><p>RecyclingRecycling PaperUS recycles 50%Many developed countries are higherRecycling GlassUS recycles 25%Costs less than new glass </p></li><li><p>RecyclingRecycling AluminumMaking new can from recycled one costs far less than making a brand new one49% of Al recycled in 2007Recycling PlasticLess expensive to make from raw materials</p></li><li><p>RecyclingRecycling TiresPlayground equipmentTrashcansGarden hoseCarpetRoofing materials36% of tires are currently recycled to make other products </p></li><li><p>Integrated Waste Management </p></li><li><p>Love Canal Toxic Waste SiteHazardous WasteAny discarded chemical that threatens human health or the environmentReactive, corrosive, explosive or toxic chemicalsTypes of Hazardous WasteDioxinsPCBsRadioactive waste </p></li><li><p>Hazardous Waste </p></li><li><p>Case-In-Point Hanford Nuclear Reservation </p></li><li><p>Superfund Program-Must be cleaned up</p><p>Cleaning up existing hazardous waste:400,000 waste sites http://www.usc.edu/org/cosee-west/Jun07Resources/07Waiting%20for%20the%20DDT%20tide%20to%20turn.pdf</p></li><li><p>Management of Hazardous WasteSuperfund National Priorities List2009: 1,264 sites on the listStates with the greatest number of sitesNew Jersey (114)California (94)Pennsylvania (94)New York (85)Michigan (65) We have Superfund sights in Maywood, Torrance.</p></li><li><p>Management of Hazardous WasteBiological Treatment of Hazardous ChemicalsBioremediation -Time consumingPhytoremediation </p></li><li><p>Management of Hazardous Waste(1) Source reduction(2) Conversion to less hazardous materials(3) Long-term storage</p><p>*******************Chemical accidentsNational Response Center notifiedTypically involves oil, gasoline or other petroleum spillCurrent Management PoliciesResource Conservation and Recovery Act (1976, 1984)Comprehensive Environmental Response, Compensation, and Liability Act (1980)Commonly known as Superfund</p><p>*Leaking chemical storage tanks and drums (right)Pesticides dumpsPiles of mining wastes</p><p>**use of bacteria and other microorganisms to break down hazardous waste into relatively harmless products*</p></li></ul>

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