Incineration And Landfill A&D

Question 1

Landfill advantages

Answer 1

-fitted with proper controls
-multiple types of waste accepted
-good use of abandoned quarries
-when capacity reached, covered with a layer of top soil and landscaped for recreational use
-revegetation removes carbon from the atmosphere through photosynthesis
-safe if managed efficiently

Question 2

Landfill disadvantages

Answer 2

-unsightly
-smell is unpleasant especially in hot weather
-attracts vermin, flies and scavenging birds
-wind blown material becomes litter
-burying organic waste leads to anaerobic decay
-potential leaching of chemicals threatens groundwater supplies
-decomposition produces methane

Question 3

Incineration advantages

Answer 3

-reduces volume of waste by up to 90%
-inactivates disease agents
-can be used to produce energy
-reduces amount of fossil fuels required
-requires less space
-long life span

Question 4

Incineration disadvantage

Answer 4

-capacity limitations
-not all waste is combustible
-poses a challenge of air pollution