(a) Interpretation: Derive an expression for the mass generation rate of methane, M ˙ C H 4 ( t ) .Without doing any calculations, sketch the shape of a plot of M ˙ C H 4 ( t ) versus t from t = 0 to t = 3 y and graphically show on the plot the total mass of methane generated in years 1 , 2 and 3 . Then derive an expression for M C H 4 ( t ) , the total mass of methane (tonnes) generated from t = 0 to a time t . Concept introduction: m = V ρ

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Answer 1

Question

Chapter 10, Problem 10.13P

Interpretation Introduction

(a)

Interpretation:

Derive an expression for the mass generation rate of methane, M˙CH4(t) .Without doing any calculations, sketch the shape of a plot of M˙CH4(t) versus t from t=0 to t=3y and graphically show on the plot the total mass of methane generated in years 1,2 and 3. Then derive an expression for MCH4(t), the total mass of methane (tonnes) generated from t=0 to a time t.

Concept introduction:

m=Vρ

Interpretation Introduction

(b)

Interpretation:

A new landfill has a yield potential of L0=100 SCM CH4/tonne waste and a rate constant k=0.04y−1. At the beginning of the first year, 48,000tonnes of wastes are deposited in the landfill. Calculate the tonnes of methane generated from this deposit over a three year period.

Interpretation Introduction

(c)

Interpretation:

The methane produced in three years 4.8×104tonnes of waste was calculated using following equation where M˙CH4 is the first expression derived in part (a).

MCH4(t=3)=M˙CH4(t=0)×1y+M˙CH4(t=1)×2y+M˙CH4(t=2)×3y

Calculate the value determined with this method and the percentage error in the calculation. Show graphically what the calculated value corresponds to on another sketch of M˙CH4 vst.

Interpretation Introduction

(d)

Interpretation:

Following amount of waste are deposited in the landfill on January 1 in each of three consecutive years.

Waste (tonnes)

Year 1 48,000

Year 2 45,000

Year 3 54,000

Calculate the metric tons of CH4 generated through the end of the third year.

Interpretation Introduction

(e)

Interpretation:

Explain in your own words the benefits of reducing the release of methane from landfills and of using the methane as a fuel instead of natural gas.

Interpretation Introduction

(f)

Interpretation:

One way to avoid the environmental hazard of methane generation is to incinerate the waste before it has a chance to decompose. What problems might this alternative process introduce?

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Answer 2

Question

Chapter 10, Problem 10.13P

Interpretation Introduction

(a)

Interpretation:

Derive an expression for the mass generation rate of methane, M˙CH4(t) .Without doing any calculations, sketch the shape of a plot of M˙CH4(t) versus t from t=0 to t=3y and graphically show on the plot the total mass of methane generated in years 1,2 and 3. Then derive an expression for MCH4(t), the total mass of methane (tonnes) generated from t=0 to a time t.

Concept introduction:

m=Vρ

Interpretation Introduction

(b)

Interpretation:

A new landfill has a yield potential of L0=100 SCM CH4/tonne waste and a rate constant k=0.04y−1. At the beginning of the first year, 48,000tonnes of wastes are deposited in the landfill. Calculate the tonnes of methane generated from this deposit over a three year period.

Interpretation Introduction

(c)

Interpretation:

The methane produced in three years 4.8×104tonnes of waste was calculated using following equation where M˙CH4 is the first expression derived in part (a).

MCH4(t=3)=M˙CH4(t=0)×1y+M˙CH4(t=1)×2y+M˙CH4(t=2)×3y

Calculate the value determined with this method and the percentage error in the calculation. Show graphically what the calculated value corresponds to on another sketch of M˙CH4 vst.

Interpretation Introduction

(d)

Interpretation:

Following amount of waste are deposited in the landfill on January 1 in each of three consecutive years.

Waste (tonnes)

Year 1 48,000

Year 2 45,000

Year 3 54,000

Calculate the metric tons of CH4 generated through the end of the third year.

Interpretation Introduction

(e)

Interpretation:

Explain in your own words the benefits of reducing the release of methane from landfills and of using the methane as a fuel instead of natural gas.

Interpretation Introduction

(f)

Interpretation:

One way to avoid the environmental hazard of methane generation is to incinerate the waste before it has a chance to decompose. What problems might this alternative process introduce?

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Answer 3

Question

Chapter 10, Problem 10.13P

Interpretation Introduction

(a)

Interpretation:

Derive an expression for the mass generation rate of methane, M˙CH4(t) .Without doing any calculations, sketch the shape of a plot of M˙CH4(t) versus t from t=0 to t=3y and graphically show on the plot the total mass of methane generated in years 1,2 and 3. Then derive an expression for MCH4(t), the total mass of methane (tonnes) generated from t=0 to a time t.

Concept introduction:

m=Vρ

Interpretation Introduction

(b)

Interpretation:

A new landfill has a yield potential of L0=100 SCM CH4/tonne waste and a rate constant k=0.04y−1. At the beginning of the first year, 48,000tonnes of wastes are deposited in the landfill. Calculate the tonnes of methane generated from this deposit over a three year period.

Interpretation Introduction

(c)

Interpretation:

The methane produced in three years 4.8×104tonnes of waste was calculated using following equation where M˙CH4 is the first expression derived in part (a).

MCH4(t=3)=M˙CH4(t=0)×1y+M˙CH4(t=1)×2y+M˙CH4(t=2)×3y

Calculate the value determined with this method and the percentage error in the calculation. Show graphically what the calculated value corresponds to on another sketch of M˙CH4 vst.

Interpretation Introduction

(d)

Interpretation:

Following amount of waste are deposited in the landfill on January 1 in each of three consecutive years.

Waste (tonnes)

Year 1 48,000

Year 2 45,000

Year 3 54,000

Calculate the metric tons of CH4 generated through the end of the third year.

Interpretation Introduction

(e)

Interpretation:

Explain in your own words the benefits of reducing the release of methane from landfills and of using the methane as a fuel instead of natural gas.

Interpretation Introduction

(f)

Interpretation:

One way to avoid the environmental hazard of methane generation is to incinerate the waste before it has a chance to decompose. What problems might this alternative process introduce?

Expert Solution & Answer

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See solution

Answer 4

Question

Chapter 10, Problem 10.13P

Interpretation Introduction

(a)

Interpretation:

Derive an expression for the mass generation rate of methane, M˙CH4(t) .Without doing any calculations, sketch the shape of a plot of M˙CH4(t) versus t from t=0 to t=3y and graphically show on the plot the total mass of methane generated in years 1,2 and 3. Then derive an expression for MCH4(t), the total mass of methane (tonnes) generated from t=0 to a time t.

Concept introduction:

m=Vρ

Interpretation Introduction

(b)

Interpretation:

A new landfill has a yield potential of L0=100 SCM CH4/tonne waste and a rate constant k=0.04y−1. At the beginning of the first year, 48,000tonnes of wastes are deposited in the landfill. Calculate the tonnes of methane generated from this deposit over a three year period.

Interpretation Introduction

(c)

Interpretation:

The methane produced in three years 4.8×104tonnes of waste was calculated using following equation where M˙CH4 is the first expression derived in part (a).

MCH4(t=3)=M˙CH4(t=0)×1y+M˙CH4(t=1)×2y+M˙CH4(t=2)×3y

Calculate the value determined with this method and the percentage error in the calculation. Show graphically what the calculated value corresponds to on another sketch of M˙CH4 vst.

Interpretation Introduction

(d)

Interpretation:

Following amount of waste are deposited in the landfill on January 1 in each of three consecutive years.

Waste (tonnes)

Year 1 48,000

Year 2 45,000

Year 3 54,000

Calculate the metric tons of CH4 generated through the end of the third year.

Interpretation Introduction

(e)

Interpretation:

Explain in your own words the benefits of reducing the release of methane from landfills and of using the methane as a fuel instead of natural gas.

Interpretation Introduction

(f)

Interpretation:

One way to avoid the environmental hazard of methane generation is to incinerate the waste before it has a chance to decompose. What problems might this alternative process introduce?

Expert Solution & Answer

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Answer 5

Chapter 10, Problem 10.13P

Interpretation Introduction

(a)

Interpretation:

Derive an expression for the mass generation rate of methane, M˙CH4(t) .Without doing any calculations, sketch the shape of a plot of M˙CH4(t) versus t from t=0 to t=3y and graphically show on the plot the total mass of methane generated in years 1,2 and 3. Then derive an expression for MCH4(t), the total mass of methane (tonnes) generated from t=0 to a time t.

Concept introduction:

m=Vρ

Interpretation Introduction

(b)

Interpretation:

A new landfill has a yield potential of L0=100 SCM CH4/tonne waste and a rate constant k=0.04y−1. At the beginning of the first year, 48,000tonnes of wastes are deposited in the landfill. Calculate the tonnes of methane generated from this deposit over a three year period.

Interpretation Introduction

(c)

Interpretation:

The methane produced in three years 4.8×104tonnes of waste was calculated using following equation where M˙CH4 is the first expression derived in part (a).

MCH4(t=3)=M˙CH4(t=0)×1y+M˙CH4(t=1)×2y+M˙CH4(t=2)×3y

Calculate the value determined with this method and the percentage error in the calculation. Show graphically what the calculated value corresponds to on another sketch of M˙CH4 vst.

Interpretation Introduction

(d)

Interpretation:

Following amount of waste are deposited in the landfill on January 1 in each of three consecutive years.

Waste (tonnes)

Year 1 48,000

Year 2 45,000

Year 3 54,000

Calculate the metric tons of CH4 generated through the end of the third year.

Interpretation Introduction

(e)

Interpretation:

Explain in your own words the benefits of reducing the release of methane from landfills and of using the methane as a fuel instead of natural gas.

Interpretation Introduction

(f)

Interpretation:

One way to avoid the environmental hazard of methane generation is to incinerate the waste before it has a chance to decompose. What problems might this alternative process introduce?

Answer 6

Chapter 10, Problem 10.13P

Interpretation Introduction

(a)

Interpretation:

Derive an expression for the mass generation rate of methane, M˙CH4(t) .Without doing any calculations, sketch the shape of a plot of M˙CH4(t) versus t from t=0 to t=3y and graphically show on the plot the total mass of methane generated in years 1,2 and 3. Then derive an expression for MCH4(t), the total mass of methane (tonnes) generated from t=0 to a time t.

Concept introduction:

m=Vρ

Answer 7

Chapter 10, Problem 10.13P

Interpretation Introduction

(a)

Interpretation:

Derive an expression for the mass generation rate of methane, M˙CH4(t) .Without doing any calculations, sketch the shape of a plot of M˙CH4(t) versus t from t=0 to t=3y and graphically show on the plot the total mass of methane generated in years 1,2 and 3. Then derive an expression for MCH4(t), the total mass of methane (tonnes) generated from t=0 to a time t.

Concept introduction:

m=Vρ

Answer 8

Interpretation Introduction

(b)

Interpretation:

A new landfill has a yield potential of L0=100 SCM CH4/tonne waste and a rate constant k=0.04y−1. At the beginning of the first year, 48,000tonnes of wastes are deposited in the landfill. Calculate the tonnes of methane generated from this deposit over a three year period.

Answer 9

Interpretation Introduction

(b)

Interpretation:

A new landfill has a yield potential of L0=100 SCM CH4/tonne waste and a rate constant k=0.04y−1. At the beginning of the first year, 48,000tonnes of wastes are deposited in the landfill. Calculate the tonnes of methane generated from this deposit over a three year period.

Answer 10

Interpretation Introduction

(c)

Interpretation:

The methane produced in three years 4.8×104tonnes of waste was calculated using following equation where M˙CH4 is the first expression derived in part (a).

MCH4(t=3)=M˙CH4(t=0)×1y+M˙CH4(t=1)×2y+M˙CH4(t=2)×3y

Calculate the value determined with this method and the percentage error in the calculation. Show graphically what the calculated value corresponds to on another sketch of M˙CH4 vst.

Answer 11

Interpretation Introduction

(c)

Interpretation:

The methane produced in three years 4.8×104tonnes of waste was calculated using following equation where M˙CH4 is the first expression derived in part (a).

MCH4(t=3)=M˙CH4(t=0)×1y+M˙CH4(t=1)×2y+M˙CH4(t=2)×3y

Calculate the value determined with this method and the percentage error in the calculation. Show graphically what the calculated value corresponds to on another sketch of M˙CH4 vst.

Answer 12

Interpretation Introduction

(d)

Interpretation:

Following amount of waste are deposited in the landfill on January 1 in each of three consecutive years.

Waste (tonnes)

Year 1 48,000

Year 2 45,000

Year 3 54,000

Calculate the metric tons of CH4 generated through the end of the third year.

Answer 13

Interpretation Introduction

(d)

Interpretation:

Following amount of waste are deposited in the landfill on January 1 in each of three consecutive years.

Waste (tonnes)

Year 1 48,000

Year 2 45,000

Year 3 54,000

Calculate the metric tons of CH4 generated through the end of the third year.

Answer 14

Interpretation Introduction

(e)

Interpretation:

Explain in your own words the benefits of reducing the release of methane from landfills and of using the methane as a fuel instead of natural gas.

Answer 15

Interpretation Introduction

(e)

Interpretation:

Explain in your own words the benefits of reducing the release of methane from landfills and of using the methane as a fuel instead of natural gas.

Answer 16

Interpretation Introduction

(f)

Interpretation:

One way to avoid the environmental hazard of methane generation is to incinerate the waste before it has a chance to decompose. What problems might this alternative process introduce?

Answer 17

Interpretation Introduction

(f)

Interpretation:

One way to avoid the environmental hazard of methane generation is to incinerate the waste before it has a chance to decompose. What problems might this alternative process introduce?

Answer 18

Expert Solution & Answer

Answer 19

Expert Solution & Answer

Answer 20

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Answer 21

Ch. 10 - A solution containing hydrogen peroxide with a...Ch. 10 - Prob. 10.2P Ch. 10 - Prob. 10.3P Ch. 10 - Prob. 10.4P Ch. 10 - Prob. 10.5P Ch. 10 - Prob. 10.6P Ch. 10 - Prob. 10.7P Ch. 10 - Water is added at varying rates to a 300-liter...Ch. 10 - Prob. 10.9P Ch. 10 - 10.10. A ventilation system has been designed for...

Solution Summary: The author illustrates how to derive an expression for the mass generation rate of methane from stackreldotM_CH4(t).

(b)

Interpretation:

A new landfill has a yield potential of L0=100 SCM CH4/tonne waste and a rate constant k=0.04y−1. At the beginning of the first year, 48,000tonnes of wastes are deposited in the landfill. Calculate the tonnes of methane generated from this deposit over a three year period.

(d)

Interpretation:

Following amount of waste are deposited in the landfill on January 1 in each of three consecutive years.

Waste (tonnes)

Year 1 48,000

Year 2 45,000

Year 3 54,000

Calculate the metric tons of CH4 generated through the end of the third year.

(e)

Interpretation:

Explain in your own words the benefits of reducing the release of methane from landfills and of using the methane as a fuel instead of natural gas.

(f)

Interpretation:

One way to avoid the environmental hazard of methane generation is to incinerate the waste before it has a chance to decompose. What problems might this alternative process introduce?

Want to see the full answer?

Chapter 10 Solutions

Solution Summary: The author illustrates how to derive an expression for the mass generation rate of methane from stackreldotM_CH4(t).

(b) Interpretation: A new landfill has a yield potential of L0=100 SCM​ CH4/tonne waste and a rate constant k=0.04y−1. At the beginning of the first year, 48,000tonnes of wastes are deposited in the landfill. Calculate the tonnes of methane generated from this deposit over a three year period.

(d) Interpretation: Following amount of waste are deposited in the landfill on January 1 in each of three consecutive years. Waste (tonnes) Year 1 48,000 Year 2 45,000 Year 3 54,000 Calculate the metric tons of CH4 generated through the end of the third year.

(e) Interpretation: Explain in your own words the benefits of reducing the release of methane from landfills and of using the methane as a fuel instead of natural gas.

(f) Interpretation: One way to avoid the environmental hazard of methane generation is to incinerate the waste before it has a chance to decompose. What problems might this alternative process introduce?

Want to see the full answer?

Chapter 10 Solutions

(b)

Interpretation:

A new landfill has a yield potential of L0=100 SCM CH4/tonne waste and a rate constant k=0.04y−1. At the beginning of the first year, 48,000tonnes of wastes are deposited in the landfill. Calculate the tonnes of methane generated from this deposit over a three year period.

(d)

Interpretation:

Following amount of waste are deposited in the landfill on January 1 in each of three consecutive years.

Waste (tonnes)

Year 1 48,000

Year 2 45,000

Year 3 54,000

Calculate the metric tons of CH4 generated through the end of the third year.

(e)

Interpretation:

Explain in your own words the benefits of reducing the release of methane from landfills and of using the methane as a fuel instead of natural gas.

(f)

Interpretation:

One way to avoid the environmental hazard of methane generation is to incinerate the waste before it has a chance to decompose. What problems might this alternative process introduce?