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sector:waste:domestic_and_commercial_wastewater_handling:start [2023/03/16 15:30] – [Table] kotzullasector:waste:domestic_and_commercial_wastewater_handling:start [2026/03/16 14:07] (current) – [Table] mielke
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 ===== Short description ===== ===== Short description =====
  
-^ Category Code  ^  Method                                                                           ||||^  AD                                        ||||^  EF                              ||||| +^  Category Code                          ^  Method  ^  AD  ^  EF  ^ 
-| 5.D.1          |  T1                                                                               |||||  NS                                        |||||  D                               ||||| +|  5.D.1                                  |  T1      |  NS  |  D   | 
-^                ^  NO<sub>x</sub>  ^  NMVOC  ^  SO<sub>2</sub>  ^  NH<sub>3</sub>  ^  PM<sub>2.5</sub>  ^  PM<sub>10</sub>  ^  TSP  ^  BC  ^  CO  ^  Pb  ^  Cd  ^  Hg  ^  Diox  ^  PAH  ^  HCB  ^ +|  {{page>general:Misc:LegendEIT:start}}                        ||||
-| Key Category:  |  -               |  -/-    |  -               |  -               |  -                 |  -                |  -    |  -   |  -   |  -   |  -   |  -   |  -     |  -    |  -    | +
- {{page>general:Misc:LegendEIT:start}} +
-\\+
  
-In category **5.D.1**, __NMVOC emissions__ from domestic and commercial wastewater handling are reported. The domestic section is covered by wastewaters of municipal origin (large centralised plants; ranging from 1000 up to >100.000 resident values). The commercial section is covered by industrial and commercial wastewaters, co-treated in municipal wwt-plants.+----
  
-According to national experts, dry toilets (including latrines) do not play a role in sewage treatment in Germany because they are not in compliance with the legislation and thus do not constitute a procedure of orderly wastewater disposal. Due to that reason NH<sub>3</sub> emissions can not be estimated and the notation key is set to NA.+|  NO<sub>x</sub>                         ^  NMVOC  |  SO<sub>2</sub>  |  NH<sub>3</sub>  |  PM<sub>2.5</sub>  |  PM<sub>10</sub>  |  TSP  |  BC  |  CO  |  Pb  |  Cd  | Hg   | As   | Cr   | Cu   | Ni   | Se   | Zn   | PCDD/F  | B(a)P  | B(b)F  | B(k)F  | I(x)P  | PAHs  | HCB  | PCB  | 
 +|  NA                                     |  -/-    |  NA              |  NA              |  NA                |  NA               |  NA   |  NA  |  NA  |  NA  |  NA  |  NA  |  NA  |  NA  |  NA  |  NA  |  NA  |  NA  |  NA     |  NA    |  NA    |  NA    |  NA    |  NA   |  NA  |  NA  | 
 +|  {{page>general:Misc:Legendkca:start}}                                                                                                                                                                                                                           |||||||||||||||||||||||||| 
 + 
 +In category **5.D.1**, __NMVOC emissions__ from domestic and commercial wastewater handling are reported. The domestic section is covered by wastewaters of municipal origin (large centralised plants; ranging from 1,000 up to >100,000 resident values). The commercial section is covered by industrial and commercial wastewaters, co-treated in municipal wwt-plants. 
 + 
 +According to national experts, dry toilets (including latrines) do not play a role in sewage treatment in Germany because they are not in compliance with the legislation and thus do not constitute a procedure of orderly wastewater disposal. Due to that reason NH<sub>3</sub> emissions cannot be estimated and the notation key is set to NA.
  
 § 55 of the German water resources act (german: Wasserhaushaltsgesetz, WHG) demands the assuring of the general wellbeing in order of the wastewater disposal (german: gemeinwohlverträgliche Abwasserentsorgung). To ensure this requirement the water regarding laws of the several federal states of Germany (e.g. § 46 Abs. 1 WG BW; Art. 34 BayWG) obligate to the transfer of wastewater from the citizen to the public authorities or to assigned companies (german: Überlassungspflicht). The details are described in municipal bylaws which for the most cases obligate to the connection to the municipal wastewater infrastructure (german: Anschluss- und Benutzungszwang). Exceptions are possible but most likely realised in form of septic tanks or drainless cesspools. § 55 of the German water resources act (german: Wasserhaushaltsgesetz, WHG) demands the assuring of the general wellbeing in order of the wastewater disposal (german: gemeinwohlverträgliche Abwasserentsorgung). To ensure this requirement the water regarding laws of the several federal states of Germany (e.g. § 46 Abs. 1 WG BW; Art. 34 BayWG) obligate to the transfer of wastewater from the citizen to the public authorities or to assigned companies (german: Überlassungspflicht). The details are described in municipal bylaws which for the most cases obligate to the connection to the municipal wastewater infrastructure (german: Anschluss- und Benutzungszwang). Exceptions are possible but most likely realised in form of septic tanks or drainless cesspools.
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 ===== Method ===== ===== Method =====
-Emissions reported under this category are calculated using the Tier 1 approach of the EMEP/EEA Guidebook 2019, where the emission factor (EF) is 15 mg/m³ wastewater (Part B, 5.D, chap. 3.2.2, Table 3-1, p. 7 [(EMEP/EEA, 2019: EMEP/EEA air pollutant emission inventory guidebook 2019, Copenhagen, 2019)]). This EF is multiplied with the total amount of wastewater (AD) treated in domestic and commercial wwt-plants, following the equation:\\+ 
 +Emissions reported under this category are calculated using the Tier1 approach of the EMEP/EEA Guidebook 2023, where the emission factor (EF) is 15 mg/m³ wastewater (Part B, 5.D, chap. 3.2.2, Table 3-1, p. 7 [(EMEPEEA2023)]). This EF is multiplied with the total amount of wastewater (AD) treated in domestic and commercial wwt-plants, following the equation:\\
 \\  \\ 
-<WRAP center round info 25%> 
-**Emissions <sub>(NMVOC)</sub> = AD x EF** (ibid., chap. 3.2.1) 
-</WRAP> 
  
 +<m> EM_NMVOC = AD * EF (ibid., chap. 3.2.1) </m> 
  
 ==== Activity data ==== ==== Activity data ====
  
-Total volumes of treated municipal wastewater are derived by the German statistical agency (Statistisches Bundesamt, Fachserie 19, Reihe 2.1.2 [(Statistisches Bundesamt, Fachserie 19, Reihe 2.1.2)]). The data source is published on a three-year basis with new data only for the respective year of the update. The availability of the data starts in 1991 with an exception for the following update, which was for 1995. Missing data are inter- or extrapolated+Total volumes of treated municipal wastewater are derived by the German statistical agency (until reporting year 2021 Statistisches Bundesamt, Fachserie 19, Reihe 2.1.2 [(Statistisches Bundesamt; Fachserie 19: Reihe 2.1.2)] and from reporting year 2022 onward, Statistischer Bericht - Erhebung der öffentlichen Abwasserbehandlung [(Statistisches Bundesamt; Statistischer Bericht - Erhebung der öffentlichen Abwasserbehandlung; Table 32213-08; https://www.destatis.de/DE/Themen/Gesellschaft-Umwelt/Umwelt/Wasserwirtschaft/Publikationen/Downloads-Wasserwirtschaft/statistischer-bericht-abwasser-oeffentlich-2190212229005.xlsx?__blob=publicationFile&v=4)]). The data source is published on a three-year basis with new data only for the respective year of the update. The availability of the data starts in 1991 with an exception for the following update, which was for 1995. Missing data are inter- or extrapolated.
  
 ==== Emisson factors ==== ==== Emisson factors ====
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 ===== Recalculations ===== ===== Recalculations =====
  
-Recalculations were necessary, because new statistical data for total volumes of treated municipal wastewater in 2019 were issued by the German statistical agency. Out of that reason changes in inter-/extrapolation between 2017 – 2020 were necessary and listed in the following table. +Recalculations had to be executed for the years 2020 – 2023 because of new statistical data for 2022. Therefore, it was necessary to replace data that had formerly been extrapolated. Data for 2020 and 2021 are now interpolated and data for 2023 and 2024 are extrapolated. The amount of total wastewater reported for 2022 is smaller than the formerly extrapolated value. Therefore, the amount of the reported emissions for the years 2020-2023 are slightly decreasing. 
- +^                   ^  Unit  ^             ^  2020          ^  2021          ^  2022          ^  2023          ^ 
-__Table 1: Revised volumes of treated municipal wastewater, in [m³]__ +| Total Wastewater  |  [m³]  |  Subm 2026  |  8,808,439,667 |  8,568,937,333 |  8,329,435,000 |  8,089,932,667 | 
-|                      ^  2017          ^  2018          ^  2019          ^  2020          ^ +| :::               | :::    |  Subm 2025  |  8,870,238,667 |  8,692,535,333 |  8,514,832,000 |  8,337,128,667 | 
-^ current submission   |  9.403.348.667 |  9.225.645.333 |  9.047.942.000 |  8.870.238.667 | +| NMVOC emitted     |  [kt]  |  Subm 2026  |          0.132 |          0.129 |          0.125 |          0.121 | 
-^ previous submission  |  9.499.670.000 |  9.418.288.000 |  9.336.906.000 |  9.255.524.000 | +| :::               | :::    |  Subm 2025  |          0.133 |          0.130 |          0.128 |          0.125 |
- +
-__Table 2: Accordingly revised NMVOC emissions, in [kt]__ +
-|                      ^  2017   ^  2018   ^  2019   ^  2020   ^ +
-^ current submission   |  0,141  |  0,138  |  0,136  |  0,133  | +
-^ previous submission  |  0,142  |  0,141  |  0,140  |  0,139  |+
  
 <WRAP center round info 60%> <WRAP center round info 60%>
-For **pollutant-specific information on recalculated emission estimates for Base Year and 2020**, please see the recalculation tables following [[general:recalculations:start|chapter 8.1 - Recalculations]].+For **pollutant-specific information on recalculated emission estimates** for Base Year and 2023, please see the recalculation tables following [[general:recalculations:start|chapter 9.1 - Recalculations]].
 </WRAP> </WRAP>
  
 ===== Planned improvements ===== ===== Planned improvements =====
-Currently no improvements are planned. + 
-\\ +<WRAP center round info 45%> 
-\\ +At the moment, no category-specific improvements are planned. 
-\\+</WRAP> 
 + 
 +[(EMEPEEA2023> EMEP/EEA (2023): EMEP/EEA air pollutant emission inventory guidebook 2023; Part B, Chapter 5.D Wastewater handling; page 7, 3.2.2 - Default emission factors, Table 3-1; Copenhagen 2023. 
 +https://www.eea.europa.eu/en/analysis/publications/emep-eea-guidebook-2023/part-b-sectoral-guidance-chapters/5-waste/5-d-wastewater-handling/@@download/file)]