5.5 solid domestic waste. sub-subtopics 5.5.1 outline the types of solid domestic waste. 5.5.2...
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5.5 Solid Domestic Waste
Sub-subtopics
5.5.1 Outline the types of solid domestic waste.5.5.2 Describe and evaluate pollution management strategies for solid
domestic (municipal) waste.
5.5.1 Solid Domestic Waste (SDW )
Solid● Any non-liquid, non-
gas
Domestic● Household● Municipal
Waste● Discarded material
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5.5.1 Types of SDW
Waste type● Food/Kitchen● Metals● Other● Other Plastic● Glass● Plastic● Paper/Cardboard● Other Organic● Wood/Timber● Green Waste
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5.5.1 Types of SDW
Waste type● Food/Kitchen● Metals● Other● Other Plastic● Glass● Plastic● Paper/Cardboard● Other Organic● Wood/Timber● Green Waste
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5.5.1 U.S. Types of SDW
5.5.2 U.S. Management of SDW
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
5.5.2 Management of SDWOptions
● Landfill● Incineration● Recycling● Composting
● Any more?
5.5.2 U.S. Management of SDW
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 aquiferso Liners used, then
encourage anaerobic decomposition
● Finite amount of area
5.5.2 Incinerator Issues
● do not separate materialso cleansers, batteries, paint
● air pollutiono dioxins
● creates ash as byproducto 10-20% of original masso where does it go?
● traffico air & noise pollution
● very expensive
5.5.2 Recycling
Steps:1. Collecting & sorting2. Transportation3. Cleaning4. Shredding/crushing5. Reusing
shredded/crushed material
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5.5.2 Recycling
Steps:1. Collecting & sorting2. Transportation3. Cleaning4. Shredding/crushing5. Reusing
shredded/crushed material
5.5.2 Composting
REDUCE!