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Fifth Framework Program

Fifth Framework Program. A id in the management and European comparison of Municipal Solid WAS te T reatment methods for a global and sustainable approach. WP2 : Energy aspects of municipal solid waste treatments Claire LECOINTE, Charlotte BARBUT. WP2 Introduction. 2 achieved deliverables :

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Fifth Framework Program

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  1. Fifth Framework Program Aid in the management and European comparisonof Municipal Solid WASte Treatment methodsfor a global and sustainable approach

  2. WP2 : Energy aspectsof municipal solid waste treatmentsClaire LECOINTE, Charlotte BARBUT

  3. WP2 Introduction 2 achieved deliverables : • Deliverable 3 : Comparable energy data for the different channels and for the contractor countries • Deliverable 4 : Energy models No models for : • Energy consumption for every channel • Energy production for anaerobic digestion (but the model for landfill can be adapted) Presentation of our work on incineration and landfill

  4. WP2 Financial statements Most of the cost is personal cost

  5. WP2 Incineration : State of the art For one ton of waste incinerated in a grate furnace

  6. WP2 Incineration : Model Exergy = part of the energy which can be used to provide mechanical work Electricity = pure exergy For heat : Ex = Q * (1-T0/T) with T0 : reference temperature T : temperature of Q Q : calorific energy For incinerated waste : Ex = LHV * (1- T0/Tcomb) with LHV : Low Heating Value ; Tcomb : combustion temperature 1 kWhe 1 kWhth

  7. ENERGY All percentages are compared with waste LHV EXERGY WP2 Incineration : Results (Orléans)

  8. WP2 Landfill : State of the art In practice, landfill gas is recoverable during 15 years. We consider an extractable production of 60 m3/t MSW.

  9. WP2 Landfill : Model

  10. kJ/Nm3 landfill gas kJ/kg landfilled waste kJ/kg incinerated waste landfill incineration WP2 Landfill : Results (Orléans) 124 000 tons/year MSW with 150 kg of organic carbon per ton In 2002, collection of 4 700 400 Nm3 of landfill gas with 55,8% CH4, 34,2 % CO2, 10% air

  11. WP2 Conclusion • The technology of incineration is well managed regarding the energy efficiency. • If we used an anaerobic digestion plant to produce biogas : • Biogas production optimized • Energy recovery more efficient (ratio exergy/energy higher for biogas than for solid waste) • Compost production • Model for anaerobic digestion doesn’t exist. But data were collected for deliverable 3. • To discuss : the status of incineration. • Waste elimination or energy recovery ?

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