the myth of garbage ii: should we throw everything away? hw & hhw ens102 april 10, 2006
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The Myth of Garbage II: Should we throw everything away?
HW & HHW
ENS102
April 10, 2006
Reviewing GarbageGarbage is material that is no longer deemed useable
by humans – us as individuals.Technically we might better define garbage as Solid
Waste - the totality of all materials thrown away from homes and commercial establishments and usually collected by some process for "disposal"
MSWIndustrial WasteHazardous Waste
industrialHHW
Growth in relation to population
Growth in relation to population
Where is Away?
http://waltersrecycling.com/residential.html
Where is Away?
Where is away?
• Prior to 1975 = open dumps• 1975-1981 SLF's and ocean dumping• 1980-1990 Incineration• 1990 - the dawn of recycling• 1991 EPA ruling 1/2 of all 6000 US SLFs
closed by 1995– no wetland slfs– must monitor surface and ground water
effluents– must install liners and leachate collection
systems– must monitor for 30 years after closing
Where is away?
Where is away?• Landfills
– MN 2008 termination date for putting unprocessed waste into landfills
– so what's next
Where is away?• Landfills
– MN 2008 termination date for putting unprocessed waste into landfills
– so what's next
Where is away?• Resource
Recovery– RDF– Minnesota's
waste-to-energy plants produce enough energy to heat over 90,000 homes each day.
Minnesota's resource recovery plants have conserved over 39 million cubic yards of landfill space.http://www.moea.state.mn.us/policy/policy1999_Q&A.cfm
Where is away?• Resource
Recovery– Curbside
Recycling
• Recycling in Minnesota has created new industries and economic development, creating more than 8,000 direct jobs in recycled products manufacturing alone.• Meeting the goal of landfilling no unprocessed waste by 2008 will reduce sulfur dioxide emissions by 340,000 tons, save 1,000 acres from being developed as landfill, and substantially reduce Minnesota's greenhouse gas emissions.http://www.moea.state.mn.us/policy/policy1999_Q&A.cfm
http://www.wmtwincities.com/residentialservices/cities/shoreview/recycling.asp
Where is away?• Resource
Recovery– Single Sort– Star Trib
Article– single stream
article– MN Comparis
on study
http://www.wmtwincities.com/residentialservices/cities/shoreview/recycling.asp
http://www.wmtwincities.com/environmental/recycling images/singel_sort_how_to.pdf
Where is away?• Resource
Recovery– Single Sort– Bethel
Walters makes recycling easy with Single Sort. You simply place all your recyclable items loosely together (please do not bag these items) in your designated recycling cart. Place all items together in your Single Sort recycling cart:•Metal cans•Clean glass bottles and jars (no ceramics, window or mirror glass)•Plastic bottles with a neck•Paper - news, office, junk mail, magazines•Cardboard - please flatten, bundle and tie together** Sorry we can not accept pizza boxes or beverage cartons. **
Where is away?• Composting
Where is away?• Reuse
Where is away?• Reduce• Life cycle
analysis• Cradle to
grave
Where is away?• HHW
Proper Disposalhttp://www.co.ramsey.mn.us/ph/hy/HHW_Items_Accepted_and_Not_Accepted.htm
Where is away?• e-waste
http://maps.grida.no/go/graphic/who_gets_the_trash
Amounts of Chemicals Entering the Environment For 2001:
1,679 million pounds of toxic chemicals released to the air
221 million pounds of toxic chemicals released to the water
4,258 million pounds of toxic chemicals released at land disposal sites
Total environmental release = 6,158 million pounds
Fate of Chemicals Entering the Environment
Many are broken down by natural processes Two types persist in the environment
Heavy metals– Lead, mercury, arsenic, cadmium, tin, chromium, zinc, copper– Used in metalworking, paint, and pesticides, among other products– Soluble in water and readily absorbed by body– Interfere with enzyme function– Example: mental retardation from mercury poisoning - Minamata Disease– Fish in MN - mercury and PCBs - http://www.health.state.mn.us/divs/eh/fish/ Synthetic organics– Chemical basis for plastics, synthetic fibers and rubber, solvents, and pesticides– Halogenated hydrocarbons
• At least one of the hydrogen atoms is replaced with a halogen atom– Chlorine (most common)– Bromine– Fluorine– IodineResistant to biodegradation
– Major health effects: carcinogenic and mutagenic
Preventing Chemicals from Entering the Environment
Disposal Shallow - Times Beach, MO - waste oil to control road dust [EPA press release - February 22, 1983] In a joint federal-state action, the Environmental Protection Agency (EPA), the
Federal Emergency Management Agency (FEMA), and the State of Missouri announced today that resources have been allocated for the permanent relocation of residents of Times Beach, Missouri. The action was necessary after the Centers for Disease Control (CDC) completed analysis of extensive soil sampling in the area and advised that the hazard posed by dioxin contamination is a continuing threat to the health of citizens in the community.
Love Canal Niagra Falls, NY (Hooker Chemical Co.) school site
Preventing Chemicals from Entering the Environment
Disposal Deep Injection Landfills Midnight dumping
Preventing Chemicals from Entering the Environment
Treatment Resource Conservation and Recovery Act (RCRA -
1976) permitted disposal process convert wastes to stable non-leachable forms
OSHA1970 Worker's right to know MSDS requirements
Toxic Substances Control Act (TSCA - 1976
Superfund Act - 1980
Preventing Chemicals from Entering the Environment
Recycling Incineration Prevention
3M News Release from: 3Mdited by the
Manufacturingtalk Editorial Team on 5 April 2006Clean products safely without CMR problems http://www.manufacturingtalk.com/news/msk/msk100.html
3P program (Pollution Prevention Pays) Sustaining Our Future:M's Progress toward
Environmental, Social and Economic Sustainability3M believes that active and responsible citizenship can make a successful company even stronger. We vigorously affirm our commitment to sustainable development through environmental protection, social responsibility and economic progress. We are committed to help meet the needs of society today while respecting the ability of future generations to meet their needs. That is what we mean by sustainability. http://www.3m.com/about3M/environment/
Preventing Chemicals from Entering the Environment
Responsible consumers Responsible users Responsible disposers What Can I Use Instead
Ann Bailey
Other resources:http://www.seventhgeneration.com/http://www.greenguardian.com/http://www.greenseal.org/
Upcoming
• April 12 Wednesday Exam day (no class?)- Must complete by Wednesday April 19 at 9:00.
• ThursdayApril 13 Lab Project 2 Presentations at 8:30 and 11:30