A landfill area of 150m x 100 m is available for handling 25 years municipal solid waste for a town of 5, 00,000 people. Out of the landfill area only 80% is actually available for landfill and other is used for auxiliary services. Assuming that average per capita MSW discard per year in town is 0.05 tonne, landfill density is 500 kg/m3, and that the 15% of actual landfill cell volume is used for soil cover, estimate the landfill lift in one year.
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Answer:
MSW generated = 40 × 106 Kg/year
Recovery = 10%
Going to landfill = 90 %
Single lift = 3 m
Compacted density = 550 Kg/m3 80% of MSW
Amount of MSW going to landfill
= 0.9 × 40 × 106 Kg/year
= 36 × 106 Kg/year
Volume of compacted landfill
=36×106Kgyr550Kgm3=65454.54m3/yr
This volume accounts for 80% of landfill
∴ Total volume of landfill
=65454.540.8=81818.18m3/yr
Landfill has single lift of 3m.
∴ Area of landfill required =81818.183
= 27272.7 m2/yr
Correct Ans [27272.7 m2/hr]
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