urban waste disposal Flashcards
(12 cards)
what are the stages of the taste hierarchy from most preferred to least preferred
reduce
reuse
recycle
recover
landfill
incineration
controlled dump
what is unregulated waste management/ disposal
not controlled or supervised by regulations of the law
used by low to middle income countries
what are the environmental impacts of unregulated waste management/ disposal
contamination of groundwater and surface water by leachate
air pollution from burning of waste thats not properly collected
what is recycling and recovering waste management/ disposal
recovery- selective extraction of disposed materials for a specific next use such as recycling or energy extraction
recycling- materials from items can be processed into new products
what are the environmental impacts off recycling and recovering waste management/disposal
reduces waste in landfills and conserves natural resources
what is trade waste management/ disposal
waste may be moved within countries for further treatment and disposal
often from high to low income couintries
what are the environmental impacts of trade waste management/ disposal
high emissions from transporting/ high carbon footprint
what is reduction(incineration) waste management/disposal
general waste can be burned to produce electricity
what are the environmental impacts of reduction (incineration) waste management/ disposal
can reduce volume of waste by up to 90%
air pollution
what is landfill as a waste management / disposal
the placement of waste into pits
what are the environmental impacts of landfill waste management/ disposal
greenhouse gase methane is produced by rotting organic matter
what is submergence waste management/ disposal
pump landfill into water/ocean
