ADVANCED SOLID WASTE MANAGEMENT UNIT IV

I 

 

  

   

 

CSU Math Center | 1-800-977-8449 x6538 | [email protected]

Math Center Requests: Math Center Request Form

Municipality Budget for 

Recycling Program 

This electronic presentation to be used with Worrell/Vesilind/Ludwig. Solid Waste Engineering: A Global Perspective, SI Edition, 3E. From Worrell/Vesilind/Ludwig. Solid Waste Engineering: A Global Perspective, SI Edition, 3E. © 2017 Cengage Learning, a part of Cengage Learning, Inc. All rights reserved. Reproduced by permission. Text/images may not be modified or reproduced in any way without prior written permission of the publisher. www.cengage.com/permissions LINK: http://columbiasouthern.adobeconnect.com/p1w47bgpb6o/

Problem: A local municipality has plans to annex a suburb community of 50,000 people. Neither the municipality nor the community has a curbside recycling program as they both put all of their refuse into the trash bin for collection. The municipality hand sorts the refuse and recognizes that it will need to hire new employees and establish a budget to hand sort a larger amount of waste. Assume the following:

(1) Hand sorting is done 6 hours per day, 4 days per week.

(2) Employees are paid $15/hour (includes allotted benefits).

(a) How many new full time employees will need to be hired?

Solution:

(1) The sort rate = 1,000 lb/hour/person (referenced on p. 183).

(2) Amount of recycled refuse to be handpicked = 1.14 lb per person per day. See Table 2.2 (below), under activity: “Recovery for recycling, 2012”

(3) Calculate the number of new employees needed:

50,000 people x 1.14 lb x 4 days x 1 hour x 1 week = 9.5 people (round up) day week 1,000 lb. 24 hour

Therefore, number of new employees needed = 10 people

(b) What additional budget should be planned to cover the cost of the new employees?

Solution:

(1) Calculate budget as follows

10 new employees x $15 x 1,248* hours = $187,200 additional budget per year hour year

*(24 hours per week x 52 weeks = 1,248 additional hours per year for 10 new employees)