- 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 a fixed cost of $10 per ton. If it is 30 miles to the landfill, what would be your least expensive transportation alternative (show your calculations)?

- 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 a fixed cost of $10 per ton. If it is 30 miles to the landfill, what would be your least expensive transportation alternative (show your calculations)?

Solid Waste Engineering

3rd Edition

ISBN:9781305635203

Author:Worrell, William A.

Publisher:Worrell, William A.

Chapter3: Collection

Section: Chapter Questions

Problem 3.21P

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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…
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?
9:38 O A O 4 .l 414 4woa9idón4Eqd0c32r5kmr.J. A university is considering two alternative types of bleachers for a new gymnasium. One of the two alternatives will be chosen. Assume that the benefits of the gymnasium are the same for both construction methods. Alternative A: Wooden bleachers on earth fill The first cost of $110.000 for the earth fill and $100.000 for the wooden bleachers. The annual painting costs are $5.000. The wooden bleachers must be replaced every 30 years at a cost of $100,000. The earth fill will last the entire 120 years Alternative B: Concrete Bleachers The first cost is $350,000. The expected life of the concrete bleachers is 120 years and the annual upkeep costs are $2.500 The university Uses a MARR of 7%. Which of the two alternatives is better? Opening in Google Drive.
5) Assume each household produces 60 lb of refuse per week. How many customers can a 20-yd³ truck that compacts the refuse to 550 lb/yd³ collect before it has to make a trip to the landfill?
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Question 27 Not yet anwered Points out of 100 P lag quention A contractor has purchased a wheel loader for $115,000 and plans to use it 2,000 hours per year. The cost of one set of tires is $25,000. At this usage rate, the contractor anticipates disposing of the loader after using it for 10 years and realizing a salvage value of $35,000. The flywheel horsepower rating of the loader's diesel engine is 105 horsepower. The loader operator will earn $34.00 per hour including fringe benefits, and diesel fuel costs $1.20 per gallon. The interest rate is 10%. How much will be the hourly cost of the second set of tires if the life of the tires is 4,000 hours? Select one: Oa $0.82/hrD O b. 55.95/hr OC. $2.04/hr Od. 51.68/hr
19. Shown below is a mass haul diagram. Determine the free haul volume. a) 1000 m³ c) 2000 m² b) 2500 m² d) 4500 m² 20. Determine a) 1000 m² the volume of waste in item 19. a) 1000 m² b) 2500 m² c) 2000 m² d) 4500 m³
Using simple calculation method.
The first decision to be made is how the solid waste container will get from the residence to the collection vehicle. Compare the advantages and disadvantages of the two methods of collection truck routing. i. Daily route method ii. Single load method
Given: A stationary container system (mechanically loaded), 3.5 collection trips/wk, 8hrs/day, 3.22 h/trip (pick up time), at site time 1h/trip, round trip = 10miles, a=.018 h/trip. b= .020h/trip, productive time = 85% Note: Even though a partial trip (3.5 collection trips), a full trip (4) will have to be mad to the disposal area. Find: Time required per week.
Assume two truckloads, 5.59 hours of actual collection per day, the truck be if it has a compaction ratio of 3.5:1, and pickup vehicie averages 5 mph between stops that are on the average separated by 150 feet. Each stop collects from two households that each put out two full 30-gallon (4.9 cubic feet) containers. it takes an average of 29 seconds to empty one container. What is the time required to serve each stop in seconds?
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