Solid Waste Engineering: A Global Perspective, Si Edition
Solid Waste Engineering: A Global Perspective, Si Edition
3rd Edition
ISBN: 9781305638600
Author: William A. Worrell, P. Aarne Vesilind, Christian Ludwig
Publisher: Cengage Learning
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Chapter 9, Problem 9.2P
To determine

(a)

The tipping fee to be charged.

Expert Solution
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Answer to Problem 9.2P

The tipping fee to be charged is 13.437dollars/ton .

Explanation of Solution

Given:

Solid waste generated per year is 40000tons .

Calculation:

Write the expression to calculate the tipping fee.

  F=(( P t P h × m h + M T )×fMT)  ..... (I)

Here, the tipping fee is F , the number of people per household in Recycleville is Ph , the number of people in Recycleville is Pt , the waste production per year from Trashville is MT , the charge of solid waste in landfill in Recycleville is f and the solid waste produced from Recycleville per year is mh .

Substitute 4×104tons/year for MT , $10perton for f , 1.1tons/home/year for mh , 2.4person/home for Ph and

  3×104person for Pt in Equation (I).

  F=( ( 3×10 4 person 2.4 person/ home ×1.1 tons/ home/ year +4× 10 4 tons/ year )×$10perton 4× 10 4 tons/ year )=( 537500 4× 10 4 )dollars/ton=13.437dollars/ton

Conclusion:

The tipping fee is calculated by dividing number of people in household, waste production/year, charge of solid waste in landfill and solid waste produced /year.

To determine

(b)

The change in duration to close the landfill if Recycleville accepted the waste from town Trashville.

Expert Solution
Check Mark

Answer to Problem 9.2P

The change in duration to close the landfill if Recycleville accepted the waste from Trashville is 5.41years earlier from the original duration.

Explanation of Solution

Given:

Solid waste generated per year is 40000tons .

Calculation:

Write the expression to calculate the time difference between the two cases.

  t0tt=(C P t P h ×mh)(C P t P h ×mh+MT)  ..... (II)

Here, the actual life of the landfill is t0 and the solid waste coming from Trashville is tt and the capacity of the landfill in Recycleville is C .

Substitute 4×104tons/year for MT , f , 1.1tons/home/year for mh , 2.4person/home for Ph , 105tons for C and 3×104person for Pt in Equation (II).

  t0tt=( ( 10 5 tons 3×10 4 person 2.4 person/ home ×1.1 tons/ home/ year ) ( 10 5 tons 3×10 4 person 2.4 person/ home ×1.1 tons/ home/ year +4× 10 4 tons/ year ))=(7.271.86)years=5.41years

Conclusion:

The change in time is calculated by dividing solid waste and by assuming actual life of landfill and waste coming from Trashville .

To determine

(c)

The way to deal with the solid waste coming from Trashville as a mayor of Recycleville.

Expert Solution
Check Mark

Explanation of Solution

If Recycleville accepts the solid waste from town Trashville, then the landfill has to be closed 5.41years earlier than the designed life for the Recycleville.

Therefore, the solid waste coming from Trashville should be limited, and a dialogue should be held with the mayor of Trashville to install their landfill plant such that they don’t need to be sent to Recycleville.

The solid waste from Trashville can be accepted for some specified duration but cannot be done on a permanent basis as this will affect the Recycleville’s landfill’s life.

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