Solid Domestic Waste

1
Solid Domestic Waste
2
Sources

• Sewage
• Run-off from raods, lawns
• Landfill
• Air (incineration, cars)
• Anything not related to industry

3
Types of Waste

• Solid waste
• Disease causing agents
• Oxygen demanding waste
• Inorganic plant nutrients
• Organic chemicals
• Sediment or suspended matter
• Thermal pollution

4
Management strategies

• Recycling
• Paper
• Assignment Describe and evaluate Parklands
  recycling program.

5
Comparison of processes
Area for comparison/ Process Recycling Virgin Paper and Incineration
Energy in the process Less (could be renewable) 25 more but could be renewable Incineration generates energy and replaces fossil fuels (toxin removal)
Energy in transport More Less since it tends to be shorted distances but not always the case
Pollution Toxins to landfill CO2 from transport supports forest growth Toxins to landfill CO2 from transport supports forest growth Air and water pollution from pulp and paper
other Inhibits attempts to use incineration as alternate energy source What could be better forest management that to reduce the number of trees needed to be cut? Stimulus responsible forest management Inhibits attempts to improve energy efficiency