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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 S olid D omestic W aste ( SDW ). Solid Any non-liquid, non-gas Domestic Household Municipal

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Sub subtopics
Sub-subtopics

5.5.1Outline the types of solid domestic waste.

5.5.2Describe and evaluate pollution management strategies for solid domestic (municipal) waste.


5 5 1 s olid d omestic w aste sdw
5.5.1Solid Domestic Waste (SDW)

Solid

  • Any non-liquid, non-gas

    Domestic

  • Household

  • Municipal

    Waste

  • Discarded material

Retrieved on 27-11-2012 from: https://www.sandiego.gov/development-services/graphics/leasolidwaste.gif


5 5 1 types of sdw
5.5.1 Types ofSDW

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 sdw1
5.5.1 Types ofSDW

Waste type

  • Food/Kitchen

  • Metals

  • Other

  • 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 1 u s types of sdw
5.5.1 U.S. Types ofSDW


5 5 2 u s management of sdw
5.5.2 U.S. Management ofSDW


5 5 2 management of sw
5.5.2 Management ofSW

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 sdw
5.5.2 Management ofSDW

Options

  • Landfill

  • Incineration

  • Recycling

  • Composting

  • Any more?


5 5 2 u s management of sdw1
5.5.2 U.S. Management ofSDW


5 5 2 landfill issues
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


5 5 2 incinerator issues
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



5 5 2 recycling
5.5.2 Recycling

Steps:

  • Collecting & sorting

  • Transportation

  • Cleaning

  • Shredding/crushing

  • Reusing shredded/crushed material

Retrieved on 27-11-2012 from: http://4.bp.blogspot.com/_uhOhNl04tWc/SZLsVmEF3GI/AAAAAAAAABk/e99AakyAlq0/s400/blogger_econscious.jpg


5 5 2 recycling1
5.5.2 Recycling

Steps:

  • Collecting & sorting

  • Transportation

  • Cleaning

  • Shredding/crushing

  • Reusing shredded/crushed material


5 5 2 composting
5.5.2 Composting



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