Solid Waste Engineering
3rd Edition
ISBN: 9781305635203
Author: Worrell, William A.
Publisher: Cengage Learning,
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Chapter 3, Problem 3.21P
To determine
Least expensive transportation alternative
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Assume it costs 30 cents per ton per mile to operate a garbage truck and 10 cents per ton per mile to operate a transfer truck. A transfer station also has fixed cost of $20 per ton. If it is 40 miles to the landfill. What would be your least expensive transportation alternative?
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…
You are the lead consultant of team A consult, leading the charge for the siting of a landfill for the metropolitan area. Explain the likely factors you would consider for the land siting of the facility
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- given the following data of cut and fill, compute the free haul distance, overhaul distance, waste and borrow volume. having the values of: Cost of overhaul: 3000 ID/station Cost of free haul: 5000 ID/cu.m Cost of borrow: 15000 ID/cu.m Free haul distance (F.H.D.): 300m = 2 stations Cost of waste=5000 ID/cu.m economic overhaul distance=5 stations limit of economic haul=8 stationsarrow_forwardIf you’re planning a solid waste collection program, cite and explain four collection elements that are importantarrow_forwardAssume it cost an average of $0.03/ton.min to haul waste from collection to transfer station and then from the transfer station to landfill using a transfer vehicle and the operation cost of the transfer station is $2/ton. The cost of hauling waste directly from the collection point to landfill is $0.1/ton.min. The speed limit of any type of vehicle carrying waste between the collection point, the transfer station, and the landfill is 40 miles/hr. At/above what distance (miles) is using a transfer station more economical? Round your answer to the nearest whole number. Show your work.arrow_forward
- Complete the following diagram of a sanitary landfill. Indicate the features. With Picture THANKSarrow_forwardCan I get a thorough step by step for the following question? A sanitary landfill has available space 25 ha at an average depth 12 m. Nine hundred sixty-five (965) cubic meters of solid waste are dumped at the site each day for 5 days per week. This waste is compacted to twice its delivered density. Draw a mass-balance diagram and estimate the expected life of the landfill in years.arrow_forwardLandfills are dynamic systems, with several design components. Using no more than three sentences explain why some types of waste are more suitable for final disposal through landfills than other kinds of waste. Very briefly outline the impact of poorly designed landfills on water quality.arrow_forward
- In 1-2 sentences, explain why you think the Aor. Landfill in Clark County, Nevada was chosen as a location for the landfillarrow_forwardA truck unloads 20m³ of gravel at a landfill. You, who own the truck, plan to purchase an uncovered box in which to transport the gravel on multiple trips. Your cost is the cost of the box plus $2.00 per trip. The box must be half a meter high, but you can choose the length and width. The cost of the box will be $20.00 per square meter for the front and back; and $10.00 per square meter for the bottom and sides. What should be the dimensions of the box you should purchase to minimize your total costs?arrow_forwardFor the community of 25,000 people, calculate how many years it would take to fill a football field 20 ft. deep, assuming a soil daily cover is used that accounts for 25% of the landfill volume. (Assume appropriate quantities of refuse, densities,arrow_forward
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ISBN:9781305635203
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