austrian inventory of greenhouse g as e missions from waste
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Austrian Inventory of Greenhouse G as E missions from Waste. Institutions and Responsibilities. The Austrian Emission Inventory and all reporting obligations are supported by the Umweltbundesamt B y law: environmental control act 1998. Institutions and Responsibilities. - PowerPoint PPT PresentationTRANSCRIPT
Kopenhagen 2-3 Mai 2005 | Folie 1
Kopenhagen 2-3 Mai 2005 | Folie 2
Austrian Inventory of Greenhouse Gas Emissions from Waste
Kopenhagen 2-3 Mai 2005 | Folie 3
Institutions and Responsibilities
The Austrian Emission Inventory and all reporting obligations are supported by the Umweltbundesamt
By law: environmental control act 1998
Kopenhagen 2-3 Mai 2005 | Folie 4
Institutions and Responsibilities
Excerpt from the Austrian Environmental Control Act
Purpose and Tasks of the Federal Environment Agency
are among others: To establish the technical expertise for compliance with
the United Nations Framework Convention on Climate Change........
To develop and keep inventories, balances, registers, and environmental information systems to document the state and development of the environment.........
Kopenhagen 2-3 Mai 2005 | Folie 5
Relevance of CRF Sector 6 „Waste“
GHG BY 2003 Trend BY -2003
BY 2003
Emissions [Gg CO2e] Share [%]
Total 78 535 91 566 16.6% 100% 100%
1 Energy 54 946 69 331 26.2% 70% 76%
2 Industry 10 115 11 046 9.2% 12.9% 12%
3 Solvent 515 426 -17.3% 0.7% 0%
4 Agriculture 8 456 7 349 -13.1% 10.7% 8%
5 LUCF -9 013 -12 773 41.7% -11% -14%
6 Waste 4 503 3 415 -24.2% 5.7% 4%
Kopenhagen 2-3 Mai 2005 | Folie 6
Relevance of Source Categories in the CRF Sector 6 „Waste“
Emissions[Gg CO2e]
6 A 6 B 6 C 6 D
2000 3 056.57 457.23 11.31 76.87
2001 2 948.17 493.06 11.26 77.49
2002 2 882.74 493.12 11.29 77.96
2003 2 828.85 495.19 11.29 79.25
Kopenhagen 2-3 Mai 2005 | Folie 7
Austrian specific Estimation Methods
Method 1 Used to estimate emissions from the disposal of „Residual Waste“
Method 2Used to estimate emissions from the disposal of „Non Residual Waste“
Kopenhagen 2-3 Mai 2005 | Folie 8
Methodology for Emission Calculation of „Residual Waste“
Model of Tabasaran-Rettenberger
Gt = 1,868*DOC*(0,014*T+0,28)*(1-10(-kt))
Gt cumulated landfill gas after t years [m3/t humid waste]DOC bio-degradable organic carbon content of deposited
waste [kgC/t humid waste]T mean temperature of disposal site [oC]k degradation constantt number of years
DOC 200 - 120kg/thumid waste
T 30°Ck 0,035Calculation period: 31 years
Kopenhagen 2-3 Mai 2005 | Folie 9
Sources of Data for the Emission Calculation of „Residual Waste“
Activity data1998 to 2003 from the Austrian landfill database managed by the UmweltbundesamtBefore 1998 from the Austrian waste management plan recalculated (including residual waste from administrative facilities)
Landfill gas recoveryNational study
Biodegradable organic carbonNational studies
Oxidation FactorIPCC default value
Kopenhagen 2-3 Mai 2005 | Folie 10
Methodology for Emission Calculation of „Non Residual Waste“
Model of Marticorena
Mt = M0*e-(kt)
Mt landfill gas formation potential at time t [m3/t humid waste]
M0 landfill gas formation potential [m3/t humid waste]
k degradation constant k = -ln (0.5) / t 1/2
t 1/2 mean ‚half life‘ of readily or slowly degradable waste respectively
t number of years Readily degradable waste: ‚half life‘ 1-20 years Slowly degradable waste ‚half life‘ 20-100 years Calculation period: 100 years
Kopenhagen 2-3 Mai 2005 | Folie 11
Sources of Data for the Emission Calculation of „Non Residual Waste“
Activity data1998 to 2003 from the Austrian landfill database managed by the UmweltbundesamtBefore 1998 no data available
Organic carbon content National studies
Half life National studies
Kopenhagen 2-3 Mai 2005 | Folie 12
Methodology for Emission Calculation of „Compost Production“: Emission factors
CH4
[kg/t humid matter]
N2O
[kg/t humid matter]
Mechanical biological treated residual waste
0.6 0.1
Bio-waste, loppings, home composting
0.75 0.1
Sewage Sludge 0.04 0.2
Kopenhagen 2-3 Mai 2005 | Folie 13
Sources of Data for the Emission Calculation of „Compost production“
Activity dataThe activity data were taken from several national studies. For years where no data were available they were inter-/extrapolated or the value of the year before was used respectively.
Emission factorsNational studies
Kopenhagen 2-3 Mai 2005 | Folie 14
Which Issues were raised during the UNFCCC Review Process? (1)
6.B Waste-water Handling: Information gaps / the methodology used for CH4
emissions from domestic and industrial waste water, is not in line with the IPCC good practice guidance
plan to revise the national methodology for the 2006 submission
• 6 D Other Waste• Compost production should be reported under 6 A
Solid waste disposal on land. Will be included until submission 06
Kopenhagen 2-3 Mai 2005 | Folie 15
Which Issues were raised during the UNFCCC Review Process? (2)
6 A 1 Managed Waste Disposal on Land Austria used an methane oxidation factor of 0.2 In this submission because recommended by
the ERT (Expert Review team) the IPCC default value was used
the composition of wastes reported in the CRF is constant through the years.
= lack of datafor the next submission efforts will be made to update the data
Kopenhagen 2-3 Mai 2005 | Folie 16
Which Issues were raised during the UNFCCC Review Process? (3)
6 A 1 Managed Waste Disposal on Land (continued) it would be more appropriate to use
extrapolation techniques for those years where no data are available (i.e. non-residual wastes before 1998), instead of considering it as constant
Efforts to improve the time series of non-residual waste will be made for the next submission
Kopenhagen 2-3 Mai 2005 | Folie 17
Uncertainties in the waste sector
6 A 1 Managed Waste Disposal on Land Expert judgement National Study estimated uncertainty of data of
submission 2000:35% emission factors / 25% activity data
Since then method continually improved uncertainty of data of submission 2004:30% emission factors / 15% activity data
Kopenhagen 2-3 Mai 2005 | Folie 18
Improvements in Sector 6 A 1
Improvements Submission 2000
Submission 2004
activity data national studies
landfill database
landfillgas recovery
estimation survey
DOC national study 1999
national study 2004
Kopenhagen 2-3 Mai 2005 | Folie 19
QA/QC procedures
Involvement of national experts Comparison of national methodology with
IPCC methodology
Kopenhagen 2-3 Mai 2005 | Folie 20
Final Slide
Thank you for your attention!