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