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Estimate the density of solid waste sample with the following composition
written 7.9 years ago by gravatar for teamques10 teamques10 ★ 65k •   modified 4.7 years ago
Component % by mass Typical density,Kg/m3
Food waste 15 290
Paper 45 85
Cardboard 10 50
Plastics 10 65
Garden wastes 10 105
Wood 5 240
Tin cans 5 90
solid waste management
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written 7.9 years ago by gravatar for teamques10 teamques10 ★ 65k

Assume 1000 kg sample of waste

Component % by mass Mass/1000Kg Typical density,Kg/m3 Total mass
(1) (2) (3) (4) (5) (3/4)
Food waste 15 150 290 0.52
Paper 45 450 85 5.29
Cardboard 10 100 50 2
Plastics 10 100 65 1.54
Garden wastes 10 100 105 0.95
Wood 5 50 240 0.21
Tin cans 5 50 90 0.56
- 100% - - 11.07

Density$= 1000/11.07\\ =90.33 kg/m3$
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