Waste Management Technology

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Questions and Answers

What is the percentage of methane content in the biogas flow?

  • 65.7%
  • 85.0%
  • 50.0%
  • 58.0% (correct)

What is the daily biogas production in normal cubic meters?

  • 3,237 Nm3/d
  • 5,571 Nm3/d (correct)
  • 68.5 m3/day
  • 50.9 m3/day

What is the heat of combustion of biogas in kWh/Nm3?

  • 15 kWh/Nm3
  • 10 kWh/Nm3 (correct)
  • 5 kWh/Nm3
  • 20 kWh/Nm3

What is the daily gross electric power production in kW?

<p>540 kW (D)</p> Signup and view all the answers

What is the percentage of organic dry substance (%ODS) in the input material?

<p>85.0% (C)</p> Signup and view all the answers

What is the daily mass balance of digestate in cubic meters?

<p>68.5 m3/day (D)</p> Signup and view all the answers

What is the daily mass balance of the solid fraction of digestate in tons?

<p>17.6 t/d (B)</p> Signup and view all the answers

What is the primary energy production in kWh/d?

<p>32,370 kWh/d (B)</p> Signup and view all the answers

What is the assumed increase in power installed with additional biomass?

<p>10%–20% (B)</p> Signup and view all the answers

What is the assumed operating hours of the biogas plant?

<p>96% (C)</p> Signup and view all the answers

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