5.B.2 - Anaerobic Digestion At Biogas Facilities

Last updated on 09 Oct 2018 06:49 (cf. Authors)

Short description

NFR Code Name of Category Method AD EF Key Category 1
5.B.2 Anaerobic Digestion at Biogas Facilities CS NS CS no key category

Separately collected organic waste (biowaste) from e.g. households, public garden and park service, food industry, restaurants, canteens an from agriculture can be treated in two different ways: aerobically (composting) and anaerobically (biogas production).

The aim of the treatment is the production of compost and digestate and therefore the recycling of nutrients and organic matter.

The produced compost and digestate are used as fertilizer or soil improver in agriculture or horticulture and also in private gardening. In Germany, about one third of the organic waste is treated in anaerobic digestion plants.
For both plant types (composting or anaerobic digestion), ammonia is an important emission to air.


Emissions from anaerobic digestion at biogas facilities are not a key source and of minor priority.

Activity data

Activity data for this category are updated by data from the national statistics.

Emission factors

The emission factors used for calculating NH3 emissions are based on emission data from a research project [1].


Recalculations have been carried out for 2015 due to improved statistical data compared to the 2017 submission.

For pollutant-specific information on recalculated emission estimates reported for Base Year and 2015, please see the pollutant specific recalculation tables following chapter 8.1 - Recalculations.

Planned improvements

At the moment, no category specific improvements are planned.

1. Carsten Cuhls, Birte Mähl, Joachim Clemens; gewitra Ingenieurgesellschaft für Wissenstransfer mbH: Ermittlung der Emissionssituation bei der Verwertung von Bioabfällen; https://www.umweltbundesamt.de/publikationen/ermittlung-der-emissionssituation-bei-der; im Auftrag des Umweltbundesamtes, April 2015.
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