Product name
Compressed upgraded biogas (biomethane/CBG); from food waste and manure; production, distribution, and use, minimum 97% methane
Reference flow unit
1 kWh
System boundaries
Includes pre-treatment of food waste at the biogas facility, anaerobic digestion, upgrading, distribution by truck and use of biogas in a combustion engine. Collection of food waste is not included in the dataset. Collection of manure is included in the system boundaries. Incineration and transport of reject from pre-treatment of food waste is included. No substitution of avoided products included.
Wastes and end-of-life
Includes transport and combustion of the pre-treatment reject.
Use advice of the dataset
This dataset should be used when modelling the use of biogas in transport applications. When using manure for biogas production, the storage time (and related emissions) of manure is reduced. This effect is not included in the dataset. Furthermore, this dataset focusses on the impact on climate change. One should therefore be cautious in using this dataset to analyse other impact categories, especially toxicity.
Contact info
kari-anne@norsus.no
Technology description
1 kWh upgraded biogas from household waste and manure. As input material in the biogas facility, approximately 50% comes from household waste and 50% from manure sourced from surrounding farms. Production process: 1) Mechanical pretreatment to remove unwanted objects and reduction of particle size: screw press, grinder, hydro cyclone. 2) Sterilization process for 1 hour at 70 °C 3) Anaerobic digestion: Hydraulic retention time (HRT) 36.5 days. 4) Upgrading: water scrubber. Emissions from driving: EURO 5.
Quality level
Very good
Location
Norway
Geographical representativeness
The biogas facility is located in the Vestfold and Telemark county. Manure is transported from local farms.
Reference year
2018
Time representativeness
Report was published in 2020.
Other comments on methods approaches
Ecoinvent 3 – allocation, cut-off by classification, version 3.8 was used as background database.
Data treatment and extrapolations principles
References
Lyng, K.-A., Saxegård, S., 2020, Livsløpsvurdering av produktene og tjenestene til Den Magiske Fabrikken. OR.23.20. NORSUS, Kråkerøy. Available from: https://norsus.no/publikasjon/livslopsvurdering-av-produktene-og-tjenestene-til-den-magiske-fabrikken/ (In Norwegian)
Brogaard, L. K., Petersen, P. H., Nielsen, P. D. & Christensen, T. H. (2015). Quantifying capital
goods for biological treatment of organic waste. Waste management & research: the journal
of the International Solid Wastes and Public Cleansing Association, ISWA, 33(2), 96-106.
https://doi.org/10.1177/0734242X14565212
