Solid and Hazardous Wastes: What to Do with the Garbage? Flashcards
Problems before on Solid Waste:
what year was it how much garbage? where was it banned from? what time span was it reported? what what happened to it after 5 months? where did it go?
“garbage barge”
- 1987 - more than 3000 tons of commercial trash, banned from the local landfill in Islip,New York - was reported for 5 months - incinerated in New York after going through other places in 5 months
greatest portion of Municipal solid waste is from?
Paper
Composition of Municipal Solid Waste
1) Paper - 27%
2) Food - 15%
3) Yard Trimmings - 14%
5) Plastics - 13%
6) Metals - 9%
7) Rubber, Leather, and Textiles - 9%
8) Wood - 6%
9) Glass - 5%
10) Other - 3%
Waste disposal methods
before:
1) Disposed in open dumps
2) incinerated
3) Poured in bodies of water
Drawbacks on disposal methods before?
1) increased volume
2) water contamination
- river dumping
3) air pollution - incineration
4) produced toxic leachates
and vermin
what did laws do to improve waste disposal methods
1) Clean Air Act -
illegalization of incineration
2) Clean water act - outlawed river dumping
3) Marine protection, research, and sanctuaries act of 1972
- prohibited ocean dumping
4) Resource Conservation and Recovery Act (RCRA0
of 1976
– open dumps restriction
- set standards for sanitary landfills, which have replaced dumps as the most common method of municipal waste disposal
Sanitary landfills necessities
1) sealed area
2) dry, with impervious clay soil
3) plastic lining is used in the hole
3) Refuse is spread in thin layers, compacted by bulldozer, and covered each day with a thin layer of soil
4) vents and drains for liquids
5) must be covered in 2-foot layer of soil after maximum capacity
biggest drawback in sanitary landfills
Needs a lot of space -
Tipping fee
availability of landfill space, when there is more then the fee is higher
Mist known landfill
it was also called as? how many tons of garbage was it? from when to when? it was closed on? by? it was then turned into?
Fresh Kills landfill - Staten Island,
- “worlds largest dump”
- started 1948, by 1996 reached 17k tons of garbage
- closed on March 2001, by Mayor Rudolph Giuliani
- turned into a park
percentage of municipal solid waste is disposed in landfills
53%
Alternatives to landfills
how much percentage of municipal waste was done with it?
1) Three R’s - reduce, reuse, recycle
- Reduce - most efficient approach
- reuse - became a
favorable trend
- recycle - “resource recovery”
- 2013, 34% recycled
2) Waste-to-energy incineration - reduces solid waste and produces heat and energy but still poses risks for health safety and pollution - 13% of garbage is incinerated
what is the most efficient approach on taking care of garbage
reducing
Greatest obstacle on
recycling is
lack of market for used glass, metals,
plastic, and paper.
Hazardous wastes
- materials that are toxic to humans, plants, or animals; are likely to explode; or are corrosive and thus likely to burn through containers or human skin.