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sector:waste:biological_treatment_anaerobic_digestion_at_biogas_facilities:start [2021/01/25 14:45] schillersector:waste:biological_treatment_anaerobic_digestion_at_biogas_facilities:start [2021/12/15 20:00] (current) – external edit 127.0.0.1
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 ===== Short description ===== ===== Short description =====
  
 +Within NFR category **5.B.2**, __ammonia (NH<sub>3</sub>) emissions from the anaerobic digestion at biogas facilities__ are reported.
  
-Within NFR category **5.B.2**, __ammonia (NH3) emissions from the anaerobic digestion at biogas facilities__ are reported. +^ Category Code  ^  Method                                ||||^  AD                                ||||^  EF                                  ||||| 
- +5.B.2         |  CS                                    |||||  NS                                |||||  CS                                  ||||| 
-NFR-Code  ^ Name of Category              Method  AD  EF  Key Category<sup>1</sup>  ^ +^  Key Category  ^  SO₂      NOₓ   NH₃   NMVOC  ^  CO    BC    Pb    Hg    Cd    Diox  ^  PAH  ^  HCB  ^  TSP  ^  PM₁₀  ^  PM₂ ₅  ^ 
-| 5.B.2       Anaerobic Digestion at Biogas Facilities  CS      NS  CS   //no key category//  |+| 5.B.2           |  -              |  -/-  |  -      |  -        |  -        |  -    |  -      -    |  -    |  -    |  -      -      | 
 + {{page>general:Misc:LegendEIT:start}} 
 +\\
  
 Separately collected organic waste (biowaste) from e.g. households, public garden and park service, food industry, restaurants, canteens and from agriculture can be treated in two different ways:\\ Separately collected organic waste (biowaste) from e.g. households, public garden and park service, food industry, restaurants, canteens and from agriculture can be treated in two different ways:\\
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 The produced digestate is used as fertilizer or soil improver in agriculture or horticulture and also in private gardening. The produced digestate is 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 and ammonia (NH3) is an important emission to air.+In Germany, about one third of the organic waste is treated in anaerobic digestion plants and ammonia (NH<sub>3</sub>) is an important emission to air.
  
 ===== Method ===== ===== Method =====
- 
 Emissions from anaerobic digestion at biogas facilities are not a key source and of minor priority. Emissions from anaerobic digestion at biogas facilities are not a key source and of minor priority.
  
 ==== Activity data ==== ==== Activity data ====
- 
 Official statistical data (Statistisches Bundesamt, Fachserie 19, Reihe 1: Abfallentsorgung (Waste management), Table 2.1; ((Statistisches Bundesamt, Fachserie FS 19, Reihe 1: Abfallentsorgung; Wiesbaden; URL: https://www.destatis.de/DE/Publikationen/Thematisch/UmweltstatistischeErhebungen/Abfallwirtschaft/Abfallentsorgung.html))) are used for the estimation. The data are published on a yearly basis with an exception for the actual year of reporting. The activity data for the actual year of reporting are obtained, initially, by carrying the relevant data from the previous year forward, in unchanged form. In the following year, when the actual activity data for the given year becomes available, they replace the data that were carried forward. This procedure has only a very small impact on the total emissions in the relevant current report year. Official statistical data (Statistisches Bundesamt, Fachserie 19, Reihe 1: Abfallentsorgung (Waste management), Table 2.1; ((Statistisches Bundesamt, Fachserie FS 19, Reihe 1: Abfallentsorgung; Wiesbaden; URL: https://www.destatis.de/DE/Publikationen/Thematisch/UmweltstatistischeErhebungen/Abfallwirtschaft/Abfallentsorgung.html))) are used for the estimation. The data are published on a yearly basis with an exception for the actual year of reporting. The activity data for the actual year of reporting are obtained, initially, by carrying the relevant data from the previous year forward, in unchanged form. In the following year, when the actual activity data for the given year becomes available, they replace the data that were carried forward. This procedure has only a very small impact on the total emissions in the relevant current report year.
  
 ==== Emission factors ==== ==== Emission factors ====
- +The emission factors used for calculating NH<sub>3</sub> emissions are based on emission data from a research project ((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)).
-The emission factors used for calculating NH3 emissions are based on emission data from a research project ((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)).+
  
 ===== Uncertainties ===== ===== Uncertainties =====
- 
 The AD from Statistisches Bundesamt have an uncertainty of ±2% whereas the uncertainty for the EF is -18/+920% (ibid.). The AD from Statistisches Bundesamt have an uncertainty of ±2% whereas the uncertainty for the EF is -18/+920% (ibid.).
  
 ===== Recalculations ===== ===== Recalculations =====
 +When preparing the current inventory data, statistical data are only available for the previous reporting year, as the Federal Statistical Office's waste statistics are one year behind schedule. The current reporting year must therefore be extrapolated on the basis of the previous year. The result of this approach is revised by the correct data in the following year. For this reason, annual recalculations are required for the previous year. Since the resulting recalculation is always extremely small, it is no longer reported here.
  
-When preparing the current inventory datastatistical data are only available for the previous reporting year, as the Federal Statistical Office'waste statistics are one year behind scheduleThe current reporting year must therefore be extrapolated on the basis of the previous yearThe result of this approach is revised by the correct data in the following yearFor this reasonannual recalculations are required for the previous year. +However, for the year 2010an error has been noticed in the reported waste volumeThis error is corrected in the current reporting. Instead of 3.416,300 kt of biowaste as reported in 2020, 3.416,944 kt were used in the anaerobic digestion plantsNH<sub>3</sub> emissions are thus corrected from 936,07 t to 936,24 t for 2010
-Since the resulting recalculation is always extremely smallit is no longer reported here.+
  
 ===== Planned improvements ===== ===== Planned improvements =====
- 
 Currently no improvements are planned. Currently no improvements are planned.
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