CVG 4133 Assignment #4 - 2023
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Dec 6, 2023
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Assignment #4, Due on Dec. 8
th
CVG4133 Solid Waste Engineering
M. Sartaj, PhD, PEng
1)
Based on the latest statistics data for Canada the total per capita waste generation in Ontario
in 2008 was 962.2 kg/p/yr out of which 217.4 kg/p/yr was diverted. Determine the required
capacity for a landfill for a community of an existing population of 100,000 starting to
receive waste in 2025 for a period of 20 yrs. Assume that population growth will be 0.7%
for the first 5 yrs and then increases to 1% and remains constant. Also, assume the diversion
rate in 2025 is 22%, but is expected to increase to 35% through 2030 and then remains
constant. Assuming an average depth below ground surface of 10 m, an average height
above ground surface of 15 m, and 1 m for the thickness of liner layer at the base, 1.2 m for
final cover, a compacted specific density of 7500 kg/m
3
, and 10% of total volume for daily
cover, calculate the dimensions of the landfill. For calculation of the volume, you can use
the equations given below (the one to the left is the exact and to the right Estimated
volume).
Estimated Vol. of Truncated Pyramid = h . (Area at mid height)
Assignment #4, Due on Dec. 8
th
CVG4133 Solid Waste Engineering
M. Sartaj, PhD, PEng
2) Use the data for 2005 US waste composition (Table 5-2). Assume that food waste, paper and
paperboard, and 50% of yard waste to be rapidly biodegradable (RB) and rubber and leather,
textile, wood and 50% of yard waste to be slowly biodegradable (SB), and the rest to be inert.
Estimate the chemical composition of RB and SB fractions of the organic portion of the waste
and determine the amount of gas that can be derived from the waste.
3) Develop a spreadsheet program for the solution for Example 11-8. Check and compare your
results with solution in the example.
4). Develop a spreadsheet program for the solution for Example 11-11 with the following
modifications:
To make it a much shorter assignment, assume there are only 2 layers (lifts) and the final cap is
placed at the end of the second year. The rainfall is 10 in and 2 in before and after placement of
the final cap, respectively. For the rest of the info, use Example 11-11. For gas production, use
the excel sheet you developed in the previous assignment. Present the sample calculations (does
not have to be typed) and the final table and graph from excel.
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