Solid Waste Engineering
Solid Waste Engineering
3rd Edition
ISBN: 9781305888357
Author: Worrell
Publisher: Cengage
bartleby

Concept explainers

Question
Book Icon
Chapter 5, Problem 5.1P
To determine

The personnel and cost required to sort all the refuse from a town and the description of problems involved in its implementation.

Expert Solution & Answer
Check Mark

Explanation of Solution

Given:

Population of town is 100000 .

Calculation:

Assume the following;

  • Municipal waste generation is 4.5lb/person/day .
  • The pickers can salvage 1000lb/hour/person .
  • Working time is 8hour/day .
  • Rate of picking is $10perhour .

Write the expression to calculate the manpower.

  M=P×qph×t   ...... (I)

Here, the manpower required is M , the population is P , the solid waste production per capita per day is q and the handpicking rate is ph .

Substitute, 100000person for P , 4.5lb/person/day for q , 1000lb/hour/person for ph and 8hour/day for t in Equation (I).

  M=( 100000person)×( 4.5 lb/ person / day )( 1000 lb/ hour / person )×( 8 hour/ day )=( 450000 8000)person=56.25person57person

Write the expression to calculate the required cost.

  C=M×t×s   ...... (II)

Here, the cost for manpower per day is C and the hourly salary rate is s .

Substitute 57person for M , 8hour/day for t and $10perhour in Equation (II).

  C=(57person)×(8hour/day)×($10perhour)=$4560perday

Conclusion:

Thus, the number of personnel required are 57person .

The cost required is $4560perday .

The major problem of this proposal is that it has significant effects on the health of manpower.

The solid waste contains volatile compounds that can be absorbed by the body.

Want to see more full solutions like this?

Subscribe now to access step-by-step solutions to millions of textbook problems written by subject matter experts!
Students have asked these similar questions
Question 1 1. A solid shaft of 1.55 m is used as a tractor propeller (prop) shaft. The shaft twists through 1.8 while rotating at 900 rpm. The diameter of the shaft is 60 mm and the modulus of rigidity is 85 GPa. Calculate 1.1 The maximum shear stress in the shaft 1.2 The power transmitted by the shaft. 2. The tractor has undergone minor modifications to increase the transmitted power by 20%. The solid shaft is replaced by a lighter hollow shaft of the same material, with a dimeter ratio of 2:1. Calculate the suitable dimeters of the hollow shaft.
Use Area Moment Method of Beam Deflections
Determine rotations at all the nodes of the beam and reactions at the supports.  Assume support 1 and 3 are roller and support 2 is pinned,  L1=1.25m, L2=3.75m and w=60kN/m. Please show all working and FBD's where relevant.
Knowledge Booster
Background pattern image
Civil Engineering
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, civil-engineering and related others by exploring similar questions and additional content below.
Similar questions
SEE MORE QUESTIONS
Recommended textbooks for you
Text book image
Solid Waste Engineering
Civil Engineering
ISBN:9781305635203
Author:Worrell, William A.
Publisher:Cengage Learning,
Text book image
Fundamentals Of Construction Estimating
Civil Engineering
ISBN:9781337399395
Author:Pratt, David J.
Publisher:Cengage,
Text book image
Engineering Fundamentals: An Introduction to Engi...
Civil Engineering
ISBN:9781305084766
Author:Saeed Moaveni
Publisher:Cengage Learning
Text book image
Construction Materials, Methods and Techniques (M...
Civil Engineering
ISBN:9781305086272
Author:William P. Spence, Eva Kultermann
Publisher:Cengage Learning
Text book image
Materials Science And Engineering Properties
Civil Engineering
ISBN:9781111988609
Author:Charles Gilmore
Publisher:Cengage Learning