Solid Waste Engineering
Solid Waste Engineering
3rd Edition
ISBN: 9781305635203
Author: Worrell, William A.
Publisher: Cengage Learning,
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Chapter 2, Problem 2.6P
To determine

The approximate composition of solid waste produced at the university.

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Q4 Estimate the energy content of a solid waste sample with the composition below and what is the content on a dry basis and on ash free dry basis? Component Percent by mass Energy kJ/kg Food waste Paper Cardboard Plastics Garden trimming Wood Tin cans Total 15 45 10 10 10 5 5 100 Based on 100 kg sample of waste Moisture content% 70 6 5 2 60 20 3 4,650 16,750 16,300 32,600 6,500 18,600 700
A truck dumped industrial waste into a pit.  They found the truck 3 days ago with a pure pool of waste.  Your lab finds the BOD5 of this waste to be 80 mg/L with a k=0.1/day.  What was the waste source? Here are the 3 nearby suspects: Winery BOD ultimate = 275 mg/L Vinegar manufacturer BOD ultimate = 80 mg/L Pharmaceutical BOD ultimate = 200 mg/L
*: Determine the energy Value of typical municipal solid wastes with the average composition shown in Table below Solution 1. Assume the heating value will be computed on an as-discarded basis. 2. Determine the energy value using a computation table Computation of energy contents Component Solid Wastes Energy Total energy Btu % lb. Btu/lb Food waste 15 2,000 Paper 40 7,200 Cardboard 7,000 Plastics 3 14.000 Textile 2 7,500 Rubber 0.5 10,000 Leather 0.5 7,500 Garden trimming 12 2,800 Wood 8,000 Glass 8 60 Tin cans 6. 300 Non ferrous 1 Ferrous 300 Dirt, Ash,and 4 3,000 brick Ans: 4762Btu/lb
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Solid Waste Engineering
Civil Engineering
ISBN:9781305635203
Author:Worrell, William A.
Publisher:Cengage Learning,