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Updated: May 10, 2026

Design and Use of a Full Flow Sampling System (FFS) for the Quantification of Methane Emissions
08:18

Design and Use of a Full Flow Sampling System (FFS) for the Quantification of Methane Emissions

Published on: June 12, 2016

Methane emissions from MBT landfills.

K-U Heyer1, K Hupe, R Stegmann

  • 1IFAS - Ingenieurbüro für Abfallwirtschaft, Schellerdamm 19-21, 21079 Hamburg, Germany. heyer@ifas-hamburg.de

Waste Management (New York, N.Y.)
|June 13, 2013
PubMed
Summary
This summary is machine-generated.

Estimating methane emissions from mechanically and biologically treated waste (MBT) landfills is crucial for climate calculations. This study developed methods to estimate these emissions, finding significant potential but also highlighting uncertainties and the need for more data.

Keywords:
Climate protectionEstimation of the emission potentialMechanical biological waste treatmentMethane emissionsMethane oxidationSanitary landfilling

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Area of Science:

  • Environmental Science
  • Waste Management Engineering
  • Climate Change Research

Background:

  • Mechanically and biologically treated waste (MBT) landfills are a significant source of methane emissions.
  • Accurate estimation of these emissions is vital for national greenhouse gas inventories and climate change mitigation efforts.
  • Previous estimations have faced uncertainties due to complex degradation kinetics and gas transport mechanisms.

Purpose of the Study:

  • To develop basic methods for estimating methane emissions from MBT landfills for the German Federal Environment Agency.
  • To evaluate topical research and monitoring results concerning the gas balance at MBT landfills.
  • To provide default values for methane formation and oxidation to improve emission calculations.

Main Methods:

  • Evaluation of existing research and monitoring data on MBT landfill gas balance.
  • Application of a three-phase degradation model with differentiated half-lives for kinetics.
  • Utilizing the First Order Decay (FOD) model from IPCC Guidelines for National Greenhouse Gas Inventories, 2006.
  • Assessment of methane oxidation capacity of landfill cover soils.

Main Results:

  • A methane formation potential of 18-24 m³CH₄/t total dry solids for treated waste.
  • A three-phase model best describes degradation kinetics, with intensive initial degradation and long-term residual gas production.
  • Methane oxidation capacity of cover soils is high, but emissions often bypass oxidation via "hot spots".
  • Estimated total emissions for German MBT landfills range from 60,000-135,000 t CO₂-eq./a, indicating significant uncertainty.

Conclusions:

  • The developed methods and default values provide a basis for estimating MBT landfill methane emissions.
  • Low methane oxidation factors are recommended for open and temporarily covered MBT landfills due to preferential emission zones.
  • Further data generation is essential to reduce uncertainties and improve the precision of methane emission rate calculations from MBT landfills for national climate reporting.