Transcript 2006 IPCC Guidelines on National Greenhouse Gas Inventories

INTERGOVERNMENTAL PANEL ON CLIMATE CHANGE
NATIONAL GREENHOUSE GAS INVENTORIES PROGRAMME
WMO
UNEP
Volume 5
Waste
2006 IPCC Guidelines
Bonn, 18 may 2006
Riitta Pipatti
INTERGOVERNMENTAL PANEL ON CLIMATE CHANGE
NATIONAL GREENHOUSE GAS INVENTORIES PROGRAMME
WMO
UNEP
IPCC 2006 GLs: Waste Volume
Riitta Pipatti (Finland) and Sonia Viera (Brazil)
Joao Alves (Brazil), Michiel R. J. Doorn (Netherlands),
Qingxian Gao (China), Sabin Guendehou (Benin), Leif
Hockstad (USA), William Irving (USA), Matthias Koch
(Germany), Carlos López (Cuba), Katarina Mareckova,
(Slovakia), Hans Oonk (the Netherlands), Craig Palmer
(Canada), Elizabeth Scheehle (USA), Sharma
Chhemendra (India), Alison Smith (UK), Per Svardal
(Norway), Sirintornthep Towprayoon (Thailand), Masato
Yamada (Japan) and Can Wang (China)
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Waste Volume - contents
NATIONAL GREENHOUSE GAS INVENTORIES PROGRAMME
Activity data collection (solid waste)
Waste categories
Overview of methodological issues and
challenges in reporting
Conclusions
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Contents of the presentation
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1 Introduction
NATIONAL GREENHOUSE GAS INVENTORIES PROGRAMME
2 Waste generation, composition and
management data
3 Solid waste disposal
4 Biological treatment of solid waste
5 Incineration and Open Burning of
Waste
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Waste Volume - contents
6 Wastewater treatment and discharge
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Waste generation, composition and
management data
NATIONAL GREENHOUSE GAS INVENTORIES PROGRAMME
encourage collection and use of countryspecific data (local conditions vary much;
uncertainties for default data large)
regional/country-specific default data on
amounts, management and waste composition
management data: solid waste disposal,
incineration, composting and other (recycling)
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Activity data for solid waste
consistent treatment across categories
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Default waste categories: MSW,
Sludge, Industrial waste and Other
NATIONAL GREENHOUSE GAS INVENTORIES PROGRAMME
regional defaults for MSW components
(paper, food, wood, plastics, etc.)
defaults for carbon contents in the
different waste types
 degradable organic carbon (SWDS)
 fossil carbon (incineration, open burning)
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Activity data for solid waste
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 Significant source of methane
NATIONAL GREENHOUSE GAS INVENTORIES PROGRAMME
 Considerable time lag in emissions after
disposal - taken into account in the First
order decay model (revised from GPG2000;
spreadsheet; can be used for all Tiers)
default parameters provided (updated
values - decay rates by climate zone)
default regional acitivity data (guidance
how to estimate historical disposal)
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Solid waste disposal
methane recovery - guidance improved
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Provide data for HWP estimates
NATIONAL GREENHOUSE GAS INVENTORIES PROGRAMME
FOD model produces estimates on
carbon storage in SWDS
only long-term carbon storage estimated
also corresponding methane estimates
carbon storage taken into account in the
AFOLU/HWP section => long-term
carbon storage reported as an
information item in the Waste sector
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Solid waste disposal
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Start
NATIONAL GREENHOUSE GAS INVENTORIES PROGRAMME
Box 3: Tier 3
Are
good quality
country-specific activity
data on historical and current
waste disposal1
available?
No
Is
solid waste
disposal on land a key
category 3?
Yes
Are
country-specific
models or key
parameters2
available?
Collect current waste
disposal data and
estimate historical
data using guidance
in Section 3.2.2.
Yes
Estimate emissions
using country-specific
methods or IPCC FOD
method with countryspecific key parameters
and good quality
country-specific activity
data
No
Box 2: Tier 2
Estimate emissions using
the IPCC FOD method
with default parameters
and good quality countryspecific activity data
Yes
Box 1: Tier 1
No
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Solid waste disposal
Estimate Emissions using
the IPCC FOD method
with default data to fill in
missing country-specific
data
1
Good quality country-specific activity data mean country-specific data on waste disposed in SDWS for 10 years or more.
2
Key parameters mean DOC/Lo, DOCf and half-life time
3
See Volume 1 Chapter 4, "Methodological Choice and Identification of Key Categories" (noting Section 4.1.2 on limited
resources), for discussion of key categories and use of decision trees.
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 GHG (CH4, N2O) emissions from
biological treatment small (CO2 not taken
into account as of biogenic origin)
NATIONAL GREENHOUSE GAS INVENTORIES PROGRAMME
simple methdology - activity data times
emission factor (defaults provided for
composting and anaerobic digestion)
energy use of methane from anaerobic
digestion => emissions from combustion
to be reported in the Energy sector
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Biological treatment of solid waste
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NATIONAL GREENHOUSE GAS INVENTORIES PROGRAMME
Waste-to-energy reported in the
energy sector
CO2 from fossil waste fractions
(plastics, waste oils, etc.), N2O and
CH4
open burning - new category;
important in developing countries
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Incineration and open burning of
waste
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improved guidance (incl. tier-structure)
NATIONAL GREENHOUSE GAS INVENTORIES PROGRAMME
wastewater and sludge - emissions
during treatment estimated together
(organic matter in sludge disposed at
SWDS, spread in agricultural soils or
incinerated subtracted)
uncollected wastewater - methodology
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Wastewater treatment and
discharge
N2O - methodology also for industrial
waste water treatment
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Guidance complemented, revised (e.g.
FOD model) and default activity data and
parameters improved
NATIONAL GREENHOUSE GAS INVENTORIES PROGRAMME
a more systematic approach to waste
management
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Conclusions
Good quality activity data (amounts,
waste compostion, BOD/COD in
wastewater, management/treatment
data) - data improving in many countries
but still a challenge
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