Solid Waste Engineering
3rd Edition
ISBN: 9781305635203
Author: Worrell, William A.
Publisher: Cengage Learning,
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Chapter 2, Problem 2.9P
To determine
The time required to fill up the smith center.
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Describe the different types of domestic solid waste.
Define the term “field capacity of solid waste”.
The City of Forty-Five (population 465,565) has requested your assistance in evaluating its solid waste collection system. Determine the mean time per collection stop plus the mean time to reach the next stop, the number of pickup locations per load, and the minimum number of trucks the city must own. The City of Forty-Five collection data are as follows:
Average truck capacity = 12.5 m3; Average observed compaction ratio = 2.87
Crew size = 2; Number of pickups = 1 /wk (no rear-of-house service)
Average number of cans per stop = 2.63/wk at 0.1136 m3/can
Average number of residents per stop = 5
Average uncompacted density = 105.76 kg/m3
Average transport time to disposal site including delays and dumping = 1.78 h/trip
Average number of trips to disposal site = 2/d; Rest breaks = 2 at 28.0 min
Average maintenance downtime = 37.0 min/d; Average workday = 8.00 h
Average percent of trucks out of service for major repairs = 15.0%
Number of workday per week = 5
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- Q2 bHow can you determine chloride content in a waste water sample?arrow_forwardExplain the purpose of solid waste characterizationarrow_forwardA yard waste composting windrow has a triangular cross section and is 10 feet wide at the base and 10 feet high at the peak and 100 feet long. You may assume the waste has a specific weight of 400 Ib/yd^3 as placed in the windrow. The waste material is 40-percent biodegradable and has the ultimate composition of C60H95040N. Determine the amount of oxygen required to stabilize the waste (show all work for full credit). Assume the aerobic degradation can be expressed as: (4a + b - 2с + За 02 b - 3d aco, + ("). H20 + dNH3 CaH¿0̟Na + 4 2arrow_forward
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ISBN:9781305635203
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Publisher:Cengage Learning,