CGE Training Materials National Greenhouse Gas Inventories UNFCCC

CGE Training Materials National Greenhouse Gas Inventories UNFCCC – NAI GHG Inventory Software Waste Sector Practical Aspects and Exercises q Version 2, April 2012 Consultative Group of Experts (CGE) Training Materials for National Greenhouse Gas Inventories

Content a) Details on use of the UNFCCC-NAI Software to calculate and report GHG emissions in the waste sector. b) Practical exercises (to be solved by the participants after the presentation). Consultative Group of Experts (CGE) Training Materials for National Greenhouse Gas Inventories 2

Background a) The decision trees in the IPCC good practice guidance (GPG 2000) are used to choose a good practice method that suits national circumstances. b) The UNFCCC-NAI Software contains, basically, the methods of lesser complexity that countries can use to prepare their inventories. c) However, in principle, the software can be used to report the estimated emissions independently of the complexity of method used (Tier 2, 3, etc). Consultative Group of Experts (CGE) Training Materials for National Greenhouse Gas Inventories 3

Waste Sector Consultative Group of Experts (CGE) Training Materials for National Greenhouse Gas Inventories 4

CH 4 Emissions from Solid Waste Disposal Sites (SWDSs) Consultative Group of Experts (CGE) Training Materials for National Greenhouse Gas Inventories 5

CH 4 Emissions from Solid Waste Disposal Sites (SWDSs) (cont. ) Consultative Group of Experts (CGE) Training Materials for National Greenhouse Gas Inventories 6

CH 4 Emissions from Solid Waste Disposal Sites (SWDSs) (cont. ) Consultative Group of Experts (CGE) Training Materials for National Greenhouse Gas Inventories 7

CH 4 Emissions from Domestic and Commercial Wastewater and Sludge Handling Consultative Group of Experts (CGE) Training Materials for National Greenhouse Gas Inventories 8

CH 4 Emissions from Domestic and Commercial Wastewater and Sludge Handling (cont. ) Consultative Group of Experts (CGE) Training Materials for National Greenhouse Gas Inventories 9

Exercise 1: CH 4 Emissions from Domestic and Commercial Wastewater and Sludge Handling (I) Country A: Year: 2000. Worksheets 6 -2 s 1 to 6 -2 s 4 Data • The National Statistics Office has provided the information included in the following table. Population (1000 persons) Degradable organic component Fraction of DOC removed as sludge Methane recovered 18 250. 5 15 330 kg BOD/1000 persons/yr 0 5 000 tonne Consultative Group of Experts (CGE) Training Materials for National Greenhouse Gas Inventories 10

Exercise 1: CH 4 Emissions from Domestic and Commercial Wastewater and Sludge Handling (II) Other Data: • Use the following values for the calculation: Collected (sewered to plant) Uncollected Wastewater handling system Fraction of wastewater treated by the handling system Methane conversion factor for the handling system Lagoons 0. 02 0. 8 Not specified 0. 05 0. 75 Latrines and septic systems 0. 3 0. 15 (anaerobic deep) (treated on site) With regular sediment removal Consultative Group of Experts (CGE) Training Materials for National Greenhouse Gas Inventories 11

Exercise 1: CH 4 Emissions from Domestic and Commercial Wastewater and Sludge Handling (III) Tasks Using the UNFCCC-NAI Software: • Calculate net CH 4 emissions • Verify the emissions report in the Sectoral and Summary Tables • Fill in Table 8 A (Overview Table) for the self evaluation of quality and completeness • Print the worksheet used, the Sectoral Summary Table and the Overview Table (8 A). Consultative Group of Experts (CGE) Training Materials for National Greenhouse Gas Inventories 12

Exercise 1: CH 4 Emissions from Domestic and Commercial Wastewater and Sludge Handling (IV) Steps • Open the software and select in the waste sector Worksheet 6 -2 s 1 Estimation of Organic Wastewater and Sludge. • Specify in column A that the estimation is for “all country”. • Enter population data in Column B, and DOC in column C. • Specify the Fraction of DOC removed as sludge. The software calculates the Total Domestic/Commercial Organic Wastewater. Consultative Group of Experts (CGE) Training Materials for National Greenhouse Gas Inventories 13

Exercise 1: CH 4 Emissions from Domestic and Commercial Wastewater and Sludge Handling (IV) Steps • Go to Worksheet 6 -2 s 2 and specify in column A the Wastewater Handling Systems used in the country. • Enter in column B the Fraction of Wastewater Treated by the Handling Systems and in C the Methane Conversion Factor. Enter in E the Maximum Methane Producing Capacity (0. 6 kg CH 4/kg BOD). The software calculates the EF. Go to Worksheet 6 -2 s 4 and enter in D the Methane Recovered. The software calculates Net CH 4 emissions. • Consultative Group of Experts (CGE) Training Materials for National Greenhouse Gas Inventories 14

ESTIMATION OF ORGANIC WASTEWATER Consultative Group of Experts (CGE) Training Materials for National Greenhouse Gas Inventories 15

ESTIMATION OF EMISSION FACTOR Consultative Group of Experts (CGE) Training Materials for National Greenhouse Gas Inventories 16

CH 4 EMISSIONS FROM DOMESTIC AND COMMERCIAL WASTEWATER HANDLING Consultative Group of Experts (CGE) Training Materials for National Greenhouse Gas Inventories 17

CH 4 EMISSIONS FROM DOMESTIC AND COMMERCIAL WASTEWATER HANDLING IN THE SECTORAL REPORT TABLE Consultative Group of Experts (CGE) Training Materials for National Greenhouse Gas Inventories 18

CH 4 EMISSIONS FROM DOMESTIC AND COMMERCIAL WASTEWATER HANDLING IN THE SUMMARY REPORT TABLE Consultative Group of Experts (CGE) Training Materials for National Greenhouse Gas Inventories 19

CH 4 Emissions from Industrial Wastewater and Sludge Handling Consultative Group of Experts (CGE) Training Materials for National Greenhouse Gas Inventories 20

CH 4 Emissions from Industrial Wastewater and Sludge Handling (cont. ) Consultative Group of Experts (CGE) Training Materials for National Greenhouse Gas Inventories 21

Indirect N 2 O Emissions from Human Sewage Consultative Group of Experts (CGE) Training Materials for National Greenhouse Gas Inventories 22

Consultative Group of Experts (CGE) Training Materials for National Greenhouse Gas Inventories 23

Emissions from Waste Incineration Consultative Group of Experts (CGE) Training Materials for National Greenhouse Gas Inventories 24

Emissions from Waste Incineration and Open Burning of Waste Consultative Group of Experts (CGE) Training Materials for National Greenhouse Gas Inventories 25

NEW WORSHEET 6 -5 S 1 INCLUDED IN THE UNFCCC–NAI SOFTWARE FOR CALCULATING EMISSIONS FROM WASTE INCINERATION Consultative Group of Experts (CGE) Training Materials for National Greenhouse Gas Inventories 26

Exercise for self-evaluation 1: CH 4 from Solid Waste Disposal on Land (I) Country A: Year: 2000. Data The Environment Ministry provided data on solid waste disposal in the country during the year 2000. It also provided results from studies carried out on solid waste characterization. Determine the CH 4 emissions from the disposition of solid waste on land using the UNFCCCNAI Software. Verify the results obtained in the Sectoral Report Table and the Summary Tables of the Inventory. Consultative Group of Experts (CGE) Training Materials for National Greenhouse Gas Inventories 27

Exercise for self-evaluation 1: CH 4 from Solid Waste Disposal on Land (II) COUNTRY A: YEAR 2000. DATA RELATED WITH SOLID WASTES DISPOSAL Urban population of the country 8 666 744 persons MSW generation rate 0. 68 kg/capita/day Fraction of MSW disposed to SWDSs 1 Proportion of waste for each type of SWDSs • Managed 0. 7 • Unmanaged-shallow 0. 3 Fraction of DOC in MSW 0. 18 Recovered methane per year (Gg) 0 Consultative Group of Experts (CGE) Training Materials for National Greenhouse Gas Inventories 28

Exercise for self-evaluation 1: CH 4 from Solid Waste Disposal on Land (III) RESULTS CH 4 emissions from solid waste disposal on land 113. 73 Gg CH 4 Consultative Group of Experts (CGE) Training Materials for National Greenhouse Gas Inventories 29

Thank you Consultative Group of Experts (CGE) Training Materials for National Greenhouse Gas Inventories 30