Presentation on theme: "Chapter 22 Waste Management. What does a societies garbage say about it? How would the trash in a landfill from 50 years ago be different than the trash."— Presentation transcript:
Chapter 22 Waste Management
What does a societies garbage say about it? How would the trash in a landfill from 50 years ago be different than the trash in a landfill today? How does the trash in a developing country look different then in a developed country? Why might landfills some day be considered a mine for resources?
Types of Solid Waste MSW – Municipal Solid Waste - Information from epa.gov Date from EPA 2005
Waste Management –Source Reduction
Composting Makes a closed loop for organic resources
Waste Management – Recovery & Recycling What products are the easiest (and often most efficient) to recycle? Glass and Metals Why? Just melt them down & save on energy used to mine/make more
Sanitary Landfill es/APEnvironmentalScience/course %20files/multimedia/lesson82/ani mations/5b_Modern_Landfill.html es/APEnvironmentalScience/course %20files/multimedia/lesson82/ani mations/5b_Modern_Landfill.html Why doesnt most waste in a sanitary landfill decompose?
Incineration Can provide energy Less goes to land fills If not done properly, lots of air pollution
Hazardous Waste ty.gov/soli dwaste/fa cilities/ha zwaste.as p
U.S. Ocean Dumping Act Prevents dumping of industrial waste, sewage, radioactive waste, and medical waste Garbage Patch in the Pacific Ocean
RCRA Resource Conservation and Recovery Act EPA controls all waste (hazardous & non-hazardous) cradle to grave Includes landfills, waste transport, waste storage
CERCLA Comprehensive Environmental Response Compensation and Liability Act Commonly known as Superfund Overseen by the EPA Goal: Mandates the development of priority lists and the clean up of hazardous waste sites.
CERLA Passed in s &1970s – Rises of industry Left lots of hazardous waste & chemicals around Cuyahoga River Flows through the city of Cleveland, which released many pollutants River has burned many times, mostly from oil/gasoline on top of the water
Love Canal – THE major event From 1942 to 1953 a landfill known as the love canal, was contaminated by Hooker chemical and then sold to the city after being covered up by layers of dirt. The city then allowed homes and schools to be built over the landfill and people started to feel the effects of the hazardous waste through sickness, cancer, birth defects... The people living on top of the landfill eventually had to leave their homes. 2c/Hooker_Electrochemical_Quit_Claim_Deed_to_Bo ard_of_Education.pdf 2c/Hooker_Electrochemical_Quit_Claim_Deed_to_Bo ard_of_Education.pdf
Brownfields Once a site has been designated as clean it becomes a Brownfield nfo.htm nfo.htm Duwamish River? acificnw/ _pacificpduwamish17.html acificnw/ _pacificpduwamish17.html
Recycling in Maple Valley - recycling/recycling.asp recycling/recycling.asp Cedar Grove Composting - What can be composted in Maple Valley? recycling/food-collection.asp#cities recycling/food-collection.asp#cities