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[Waste] Methodology guide

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Written by Support

Summary

This section provides an overview of the methodology that will be applied to the GHG assessment. It defines why the specific data is relevant, how it will be measured, and what categories or frameworks are used.

Why consider emissions from waste?

Waste emissions are representing the last step of a product life. It covers the waste collection, and usually the processing of this waste.
The main type of waste processing are:
- Landfill: Disposal of waste by depositing or burying on or in the ground.
-Incineration: Energetic valorization
-Recycling: Any recovery operation by which waste, including organic waste, are reprocessed into substances, materials or products for their original function or for other purposes
-Composting, Methanisation: (an)aerobic transformation process of fermentable materials

Type of raw data

  • Purpose: Type of waste

  • Granularity: Weight

  • Measurement: Tonnes Important Note: Refer to the Data Collection Guide for more details.General information Lightweight module
    3 different lightweight modules are available:

  • BEGES (Used for all BEGES clients)

  • GHG P (Used for all GHG P clients but UK ones)

  • UK (Only used for UK clients)
    They’re used the same way, but are using different databases (ADEME, EPA and UK), since these database don’t measure exactly the same perimeter:

  • Base Empreinte ADEME: This is the database to be used for a BEGES client. All the EFs are taking into account the full waste management process.

  • EPA(United States Environmental Protection Agency): Used for all GHG P clients except the UK ones. Emission factors from EPA take into account the transportation to recycling facility and first sorting of waste. For landfills, they also take into account the waste management phase.

  • UK GHG Conversion Factors: Used for UK clients only, this database takes into account the transportation of the waste only, except for the landfill EFs, where waste management is also included.

    Since we’re using different database, the list of emission factors isn’t exactly the same in each lightweight.

Advanced module
The advanced module is also based on these 3 databases, but with an extended list of emission factors, taking into account more types of waste

Processing between methodologies

General information

Lightweight module

Data processing is exactly the same, whether the assessment’s referential is GHG Protocol or BEGES. Only the EFs are changing.

Advanced module

Data processing is exactly the same, whether the assessment’s referential is GHG Protocol or BEGES. Only the EFs are changing.

Additional information

More information on methodology here

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