A community of 100,000 people wants to initiate public garbage collection and disposal to a landfill that is 30 miles away. The collection frequency is once a week. For garbage transportation to the landfill, there are two options: no transfer station and a transfer station that is 10 miles away from the community and is on the way to the landfill. Determine:Total transportation cost for the no transfer station option.Total transportation cost for the transfer station option.Breakeven point (for the two options), if the transfer station can be placed anywhere on the way to the landfill. Your answer must be in term of distance between the station and the community.Assumptions/given information:Generation rate: 4 lbs/person/day.As collected density: 200 lb/yd3.Collection truck size of 20 yd3 with a compaction ratio of 3.Transfer truck/trailer size of 60 yd3 with no compaction capability.Costs: 30 cents per mile per collection truck, 10 cents per mile per transfer truck/trailer, and $1 per ton for a fixed cost for transfer station.Project period: 20 years.

Given, Generation rate: 4 lbs/person/day Collection density: 200 lb/yd3 Truck size = 20 yd3…

Answered: A community of 100,000 people wants to…

Solid Waste Engineering

3rd Edition

ISBN:9781305635203

Author:Worrell, William A.

Publisher:Worrell, William A.

Chapter3: Collection

Section: Chapter Questions

Problem 3.20P

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A community of 100,000 people wants to initiate public garbage collection and disposal to a landfill that is 30 miles away. The collection frequency is once a week. For garbage transportation to the landfill, there are two options: no transfer station and a transfer station that is 10 miles away from the community and is on the way to the landfill. Determine:

Total transportation cost for the no transfer station option.
Total transportation cost for the transfer station option.
Breakeven point (for the two options), if the transfer station can be placed anywhere on the way to the landfill. Your answer must be in term of distance between the station and the community.

Assumptions/given information:

Generation rate: 4 lbs/person/day.
As collected density: 200 lb/yd³.
Collection truck size of 20 yd³ with a compaction ratio of 3.
Transfer truck/trailer size of 60 yd³ with no compaction capability.
Costs: 30 cents per mile per collection truck, 10 cents per mile per transfer truck/trailer, and $1 per ton for a fixed cost for transfer station.
Project period: 20 years.

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