Chapter 22 Waste Management. What does a societies garbage say about it? How would the trash in a...
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Transcript of Chapter 22 Waste Management. What does a societies garbage say about it? How would the trash in a...
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 MetalsWhy?Just melt them down &
save on energy used to mine/make more
Sanitary Landfill
http://uccpbank.k12hsn.org/courses/APEnvironmentalScience/course%20files/multimedia/lesson82/animations/5b_Modern_Landfill.html
Why doesn’t most waste in a sanitary landfill decompose?
IncinerationCan provide energy
Less goes to land fills
If not done properly, lots of air pollution
Hazardous Waste
http://your.kingcounty.gov/solidwaste/facilities/hazwaste.asp
E-Waste
http://your.kingcounty.gov/solidwaste/wdidw/category.asp?CatID=8
Surface Impoundment
Deep-well injection
Relevant Laws
U.S. Ocean Dumping ActPrevents
dumping of industrial waste, sewage, radioactive waste, and medical waste
Garbage Patch in the Pacific Ocean
RCRAResource Conservation and Recovery Act
EPA controls all waste (hazardous & non-hazardous) “cradle to grave”
Includes landfills, waste transport, waste storage
CERCLAComprehensive
Environmental Response Compensation and Liability Act
Commonly known as Superfund
Overseen by the EPAGoal: Mandates the
development of priority lists and the clean up of hazardous waste sites.
CERLA Passed in 19801960’s &1970’s – Rises of industryLeft lots of hazardous waste & chemicals around
Cuyahoga RiverFlows 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.
http://upload.wikimedia.org/wikipedia/commons/2/2c/Hooker_Electrochemical_Quit_Claim_Deed_to_Board_of_Education.pdf
BrownfieldsOnce a site has been designated as clean it becomes a “Brownfield”
http://www.epa.gov/swerosps/bf/basic_info.htm
Duwamish River? http://seattletimes.nwsource.com/html/pacificnw/2014703392_pacificpduwamish17.html
Recycling in Maple Valley - http://your.kingcounty.gov/solidwaste/garbage-recycling/recycling.asp
Cedar Grove Composting - http://www.cedar-grove.com/
What can be composted in Maple Valley?http://your.kingcounty.gov/solidwaste/garb
age-recycling/food-collection.asp#citieshttp://wmnorthwest.com/maplevalley/index
.html