Waste Collection Exercises

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Problem 2: Description Calculate the truck volume (v) and the number of trucks (N) you would recommend to serve a residential community using a manually loaded compactor on a weekly basis. Each location is served once each week. Use data from the following slide.
Data ‣ Total number of locations = 50,000 loc/week ‣ Waste generation per location = 20 lb/loc ‣ Waste specific weight = 177 lb/yd 3 ‣ Compaction ratio = 2.5 ‣ Collection time = 1 min/location ‣ Total collection time = 40 hrs per week, 5 days/wk ‣ Disposal time (total) = 31 min/trip ‣ Time to and from garage (total) = 20 min/day ‣ Off route time = 15% of total collection time ‣ Number of trips/day possible = 2
Page 1 and 2: Waste Collection Exercises
Page 3 and 4: Data ‣ Total collection time (Y):
Page 5 and 6: Step 1: Solve for c, number of trip
Page 7 and 8: Step 1: Cont’d 480 = 30 + 14c - 4
Page 9: Step 2: Calculate the number of con
Page 13 and 14: Step 1: Calculate N using time per
Page 15 and 16: Step 2: Solve for N Y = a + b + c(d
Page 17 and 18: Step 3: Calculate minimum truck vol
Page 19 and 20: Data ‣ Number of days/week = 5
Page 21 and 22: Step 1: Calculate the number of sat
Page 23 and 24: Step2: Calculate the time per week
Page 25 and 26: Step 3: Calculate the number of com
Page 27 and 28: Practice Problem 1: Data ‣ Number
Page 29 and 30: Practice Problem 2: Data ‣ Length
Page 31 and 32: Variable Commingled Source Separate

Waste Collection Exercises

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