Emissions reductions of GHG and domestic
waste composting in less advanced countries.
Why new assessment tools are request...
Outline
2
1. Waste management - Least Developed Countries (LDCs) – Composting
2. Composting and GHG emissions
3. Emission ...
Waste management - Least Developed
Countries (LDCs) – Composting
• LDC’s : around 40% waste collection
• Role of municipal...
Composting and GHG emissions
Source : Satoshi Sugimoto JICA expert team
4
Emission reductions calculation
according to UNFCCC methodology
• Project emissions :
Compost
PEy = PEy,power + PEy,comp +...
CDM method analysis
• Ten years calculation
• Climat : rain > 1000mm/year. T° : >20°C
• Calculation data:
– Local values (...
Baseline – Project – Emission
Reduction
0
2000
4000
6000
8000
10000
12000
14000
16000
18000
20000
1 2 3 4 5 6 7 8 9 10 11
...
Baseline – Project – Emission
Reduction
0
2000
4000
6000
8000
10000
12000
14000
16000
18000
20000
1 2 3 4 5 6 7 8 9 10 11
...
Baseline – Project – Emission
Reduction
0
2000
4000
6000
8000
10000
12000
14000
16000
18000
20000
1 2 3 4 5 6 7 8 9 10 11
...
Emission reductions calculation
0
20
40
60
80
100
1 2 3 4 5 6 7 8 9 10
X ton composted during year one
0
50
100
150
200
25...
Conservativness of
methodology
• Kinetics
• Default values
• Constant evolutions
• Has been criticized
 scientific justif...
Kinetics
0
50
100
150
200
250
300
350
400
450
500
1 2 3 4 5 6 7 8 9 10
12
X ton composted every year- calculation of ER on...
Main recent methodological
evolutions (1)
• Global uncertainty factor : from 10% to 20%
• Nitrous oxide emissions in proje...
Main recent methodological
evolutions (2)
25000 tons organic waste
treated in the year of
calculation. Calculation
version...
Difficult investment
15
Drawbacks but not advantages
• Methane and nitrous
oxide emissions
• Leachates from
composting
• Emission from
anaerobic s...
What we’d like to propose
Life cycle analysis
• CERF (compost emissions reduction factor) =
Csb + (Wb + Eb +Fb +Hb)*C -Te ...
What we’d like to propose
Social impacts
• Job creation
• informal workers (re) insertion
some standards already take the...
Conclusion
Combine solid waste disposal site emissions
(according UNFCCC methodology) and
agricultural use of compost emi...
Thank You
Questions ?
gaia.ludington@gevalor.org
www.gevalor.org
20
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Presentation new assesment tools carbon finance ramiran 2013

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Presentation article Ramiran June 2013 "Emission Reductions of Greenhouse Gas emissions and domestic waste composting in less advanced countries. Why new assessment tools are requested." Gaïa Ludington - Georges Morizot - Baptiste Flipo - Jocelyne Delarue. Gevalor

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Presentation new assesment tools carbon finance ramiran 2013

  1. 1. Emissions reductions of GHG and domestic waste composting in less advanced countries. Why new assessment tools are requested. Presented by Gaïa Ludington Gevalor 1
  2. 2. Outline 2 1. Waste management - Least Developed Countries (LDCs) – Composting 2. Composting and GHG emissions 3. Emission reductions calculation 4. CDM method analysis 5. Baseline – Project – Emission Reduction 6. Emission reductions calculation 7. Conservativness of methodology 8. Kinetics 9. Main recent methodological evolutions (1) 10. Main recent methodological evolutions (2) 11. Difficult investment 12. Drawbacks but not advantages 13. What we’d like to propose 14. Conclusion
  3. 3. Waste management - Least Developed Countries (LDCs) – Composting • LDC’s : around 40% waste collection • Role of municipalities but little financial resources • Importance of informal sector • Average 70% organic matter  compost : holistic approach • Reduces residual volumes to landfill • Reduces polution risks • Reduces GHG emissions • Creates jobs (notably for waste pickers) • Favours sustainable agriculture and adaptation to climate change 3
  4. 4. Composting and GHG emissions Source : Satoshi Sugimoto JICA expert team 4
  5. 5. Emission reductions calculation according to UNFCCC methodology • Project emissions : Compost PEy = PEy,power + PEy,comp + PEy,runoff + PEy,res waste 5 ER = BE - PE
  6. 6. CDM method analysis • Ten years calculation • Climat : rain > 1000mm/year. T° : >20°C • Calculation data: – Local values (climate) – Monitored values (SWDS management – waste quantity) – Default values (decay rate – fraction of DOC) 6
  7. 7. Baseline – Project – Emission Reduction 0 2000 4000 6000 8000 10000 12000 14000 16000 18000 20000 1 2 3 4 5 6 7 8 9 10 11 Baseline emission for a same quantity of waste composted every year BE 7
  8. 8. Baseline – Project – Emission Reduction 0 2000 4000 6000 8000 10000 12000 14000 16000 18000 20000 1 2 3 4 5 6 7 8 9 10 11 Baseline and project emissions for a same quantity of waste composted every year BE PE 8
  9. 9. Baseline – Project – Emission Reduction 0 2000 4000 6000 8000 10000 12000 14000 16000 18000 20000 1 2 3 4 5 6 7 8 9 10 11 Emissions reductions for a same quantity of waste composted every year BE PE 9
  10. 10. Emission reductions calculation 0 20 40 60 80 100 1 2 3 4 5 6 7 8 9 10 X ton composted during year one 0 50 100 150 200 250 300 350 400 450 500 1 2 3 4 5 6 7 8 9 10 X ton composted every year 10 0 20 40 60 80 100 1 2 3 4 5 6 7 8 9 10 0 20 40 60 80 100 1 2 3 4 5 6 7 8 9 10 X ton composted during year 5 X ton composted during year 10
  11. 11. Conservativness of methodology • Kinetics • Default values • Constant evolutions • Has been criticized  scientific justification ? 11
  12. 12. Kinetics 0 50 100 150 200 250 300 350 400 450 500 1 2 3 4 5 6 7 8 9 10 12 X ton composted every year- calculation of ER on the year of treatment
  13. 13. Main recent methodological evolutions (1) • Global uncertainty factor : from 10% to 20% • Nitrous oxide emissions in project emissions but not in baseline • Monitoring CH4 and N2O very complicated – default values very high 13
  14. 14. Main recent methodological evolutions (2) 25000 tons organic waste treated in the year of calculation. Calculation version 10. 25000tons organic waste treated in the year of calculation. Calculation version 11. Year 1 1675TCO2eq reduction emission -1125 TCO2eq reduction emission Total (10 years) 53500TCO2eq reduction emission 25500 TCO2eq reduction emission 14
  15. 15. Difficult investment 15
  16. 16. Drawbacks but not advantages • Methane and nitrous oxide emissions • Leachates from composting • Emission from anaerobic storage • Social impact ? – Job creation – informal workers (re) insertion • Climate change ? – Agronomic parameters ? – Soil parameters ? • Longer life for landfills • Less costs for municipalities 16
  17. 17. What we’d like to propose Life cycle analysis • CERF (compost emissions reduction factor) = Csb + (Wb + Eb +Fb +Hb)*C -Te + Pe + Fe With • CSb = Emission reductions associated with the increased carbon storage in soil (MTCO2E/ton of feedstock) • Wb = Emission reductions due to decreased water use (MTCO2E/ton of compost) • Eb = Emission reduction associated with decreased soil erosion (MTCO2E/ton of compost) • Fb = Factor to account for the reduced fertilizer use (MTCO2E/ton of compost) • Hb = Factor to account for the reduced herbicide use (MTCO2E/ton of compost) • C = Conversion factor used to convert from tons of compost to tons of feedstock • Te = Transportation emissions from composting (MTCO2E/ton of feedstock) • Pe = Process emissions from composting (MTCO2E/ton of feedstock) • Fe = Fugitive emissions from composting (MTCO2E/ton of feedstock) Developed by Cal EPA 17
  18. 18. What we’d like to propose Social impacts • Job creation • informal workers (re) insertion some standards already take them into consideration 18
  19. 19. Conclusion Combine solid waste disposal site emissions (according UNFCCC methodology) and agricultural use of compost emissions reduction (LCA) for a better approach.  Take in consideration social impacts • No matter carbon finance, selling compost is essential for financial sustainability and is also a challenge in itself. 19
  20. 20. Thank You Questions ? gaia.ludington@gevalor.org www.gevalor.org 20

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