0. 5.5 Solid Domestic Waste

1. Sub-subtopics
5.5.1 Outline the types of solid domestic waste Describe and evaluate pollution management strategies for solid domestic (municipal) waste.

2. 5.5.1 Solid Domestic Waste (SDW )
Any non-liquid, non-gas
Domestic
Household
Municipal
Waste
Discarded material
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3. 5.5.1 Types of SDW Waste type % Food/Kitchen ? Metals Other
Other Plastic
Glass
Plastic
Paper/Cardboard
Other Organic
Wood/Timber
Green Waste % ?

4. 5.5.1 Types of SDW Waste type % Food/Kitchen 38.1 Metals 7.1 Other 3.4
Other Plastic
Glass
Plastic
Paper/Cardboard
Other Organic
Wood/Timber
Green Waste %
38.1
7.1
3.4
4.4
6.8
2.9
9.9
3.2
6.4
17.8

5. 5.5.1 U.S. Types of SDW

6. 5.5.2 U.S. Management of SDW

7. 5.5.2 Management of SW Manufacturing (56%) scrap metal plastics paper
sludge
ash
Indirectly created by SDW
Mining (14%)
rock and minerals (tailings)
dumped into waterways
Agriculture (9%)
crop waste
manure

8. 5.5.2 Management of SDW Options Landfill Incineration Recycling
Composting
Any more?

9. 5.5.2 U.S. Management of SDW

10. 5.5.2 Landfill Issues
Waste put into ground, and covered with soil, plastic, or both each day.
anaerobic decomposition produces methane
aerobic decomposition produces carbon dioxide
noise, smell, vermin
Leachates - seeping liquid into groundwater aquifers
Liners used, then encourage anaerobic decomposition
Finite amount of area

11. 5.5.2 Incinerator Issues do not separate materials
cleansers, batteries, paint
air pollution
dioxins
creates ash as byproduct
10-20% of original mass
where does it go?
traffic
air & noise pollution
very expensive

12. Toy Story 3

13. 5.5.2 Recycling Steps: Collecting & sorting Transportation Cleaning
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Steps:
Collecting & sorting
Transportation
Cleaning
Shredding/crushing
Reusing shredded/crushed material

14. 5.5.2 Recycling Steps: Collecting & sorting Transportation Cleaning
Shredding/crushing
Reusing shredded/crushed material

15. 5.5.2 Composting

16. REDUCE!