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Design and Use of a Full Flow Sampling System FFS for the Quantification of Methane Emissions
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Quantification of landfill methane using modified Intergovernmental Panel on Climate Change's waste model and error

Siva Shangari Govindan1, P Agamuthu2

  • 1Institute of Biological Sciences, University of Malaya, Kuala Lumpur, Malaysia shang.govin@gmail.com.

Waste Management & Research : the Journal of the International Solid Wastes and Public Cleansing Association, ISWA
|October 18, 2014
PubMed
Summary
This summary is machine-generated.

This study models methane generation from landfills using the Intergovernmental Panel on Climate Change Waste Model. Optimizing decay rate and degradable organic carbon significantly reduced estimation errors for efficient landfill gas recovery.

Keywords:
Intergovernmental Panel on Climate Change waste modelerror function analysismethane generationsanitary landfill

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Area of Science:

  • Environmental Science
  • Climate Change Mitigation
  • Waste Management Engineering

Background:

  • Effective waste management is crucial for public health and environmental protection.
  • Landfills are significant sources of methane, a potent greenhouse gas, necessitating accurate emission estimation.
  • Current methods for quantifying landfill gas generation often rely on numerical models.

Purpose of the Study:

  • To estimate methane generation from a Malaysian sanitary landfill using the Intergovernmental Panel on Climate Change Waste Model.
  • To analyze key model parameters, decay rate and degradable organic carbon, using two distinct approaches: bulk waste and waste composition.
  • To validate the model and determine optimal parameters for improved accuracy in methane estimation.

Main Methods:

  • Application of the Intergovernmental Panel on Climate Change Waste Model to estimate methane production.
  • Analysis of decay rate and degradable organic carbon using both bulk waste and waste composition methodologies.
  • Model validation through error function analysis to identify optimal parameter values.

Main Results:

  • The study identified optimal decay rates of 0.08 y⁻¹ and 0.09 y⁻¹ for the bulk waste and waste composition approaches, respectively.
  • Optimal degradable organic carbon values were found to be 0.12 for the bulk waste approach and 0.08 for the waste composition approach.
  • Model validation resulted in significant error reductions: 81% for the bulk waste approach and 69% for the waste composition approach.

Conclusions:

  • The validated modeling approach provides a reliable method for estimating methane generation in landfills.
  • Optimized parameters enhance the accuracy of landfill gas emission predictions.
  • This modeling framework supports strategic planning for efficient landfill gas recovery systems.