Global warming is a focus of political interest and life-cycle assessment of waste management systems reveals that energy recovery from municipal solid waste is a key issue. This paper demonstrates how the greenhouse gas effects of waste treatment processes can be described in a simplified manner by considering energy efficiency indicators. For evaluation to be consistent, it is necessary to use reasonable system boundaries and to take the generation of electricity and the use of heat into account. The new European R1 efficiency criterion will lead to the development and implementation of optimized processes/systems with increased energy efficiency which, in turn, will exert an influence on the greenhouse gas effects of waste management in Europe. Promising technologies are: the increase of steam parameters, reduction of in-plant energy consumption, and the combined use of heat and power. Plants in Brescia and Amsterdam are current examples of good performance with highly efficient electricity generation. Other examples of particularly high heat recovery rates are the energy-from-waste (EfW) plants in Malmö and Gothenburg. To achieve the full potential of greenhouse gas reduction in waste management, it is necessary to avoid landfilling combustible wastes, for example, by means of landfill taxes and by putting incentives in place for increasing the efficiency of EfW systems.
Bahor, B., Weitz, K. & Szurgot, A. ( 2008) Updated analysis of greenhouse gas emissions and mitigation from municipal solid waste management options using a carbon balance . In: Proceedings of Global Waste Management Symposium, Copper Mountain Conference Center, Colorado, USA, September 7-10, 2008. http://www.energyrecoverycouncil.org/userfiles/file/Global%20Symposium%20Paper%20June%2030%202008%20FINAL.pdf (accessed 18 September).
2.
BIfA Bayerisches Institut Für Angewandte Umweltforschung und -technik GmbH (2000) Wissenschaftliche Begleitung der MBA Erbenschwang (Scientific monitoring of the MBT plant in Erbenschwang), p. 9. In: BIfA-Texte No. 17, March 2002.
3.
Bundesamt für Energie (2008) Stromversorgungsverordnung (Electricity Supply Directive), p. 37. Bundesamt für Energie, Ittigen, Switzerland. Christensen, Th.H. , Bhander, G., Lindvall, H., Larsen, A.W., Fruergaard, Th., Damgaard, A., Manfredi, S. , Boldrin, A., Riber, Ch. & Hauschild, M. ( 2007) Experience with the use of LCA-modelling (EASEWASTE) in waste management. Waste Management and Research, 25, 257-262.
4.
Cornelissen R.L. ( 1997) Thermodynamics and Sustainable Development: The Use of Exergy Analysis and the Reduction of Irreversibility. Dissertation, University of Twente, Enschede, The Netherlands.
5.
EN (2002) Water-tube boilers and auxiliary installations - Part 16: Requirements for Grate and Fluidized Bed Firing Systems for Solid Fuels for the Boiler. European Standard 12952-16 . EU Commission, Brussels, Belgium.
6.
EU Commission (2008) Directive 2008/98/EC of the European Parliament and of the Council of 19 November 2008 on Waste and repealing certain directives (Waste Framework Directive, R1 formula in footnote of attachment II )EU Commission, Brussels, Belgium.
7.
FDBR Arbeitskreis Abfallverbrennung (2000) Acceptance Testing of Waste Incineration Plants with Grate Firing Systems, Guideline Edition, April 2000. FDBR, Düsseldorf, Germany.
8.
Fellner, J., Cencic, O. & Rechberger, H. ( 2007) A new method to determine the ratio of electricity production from fossil and biogenic sources in waste-to-energy plants. Environmental Science and Technology, 2007, 41, 2579-2586.
9.
Fisher, K., Collins, M., Aumônier, S. & Gregory, B. ( 2006) Carbon Balances and Energy Impacts of the Management of UK Wastes, Final Report December 2006. UK Department for Environment Food and Rural Services (Defra), London, R&D project WRT 237: http://www.resourcesnotwaste.org/members/conf-application-form/Carbon&Waste(ERM).pdf (accessed 18 September 2009).
10.
Gohlke, O. & Martin, J. ( 2007) Drivers for innovation in waste-to-energy technology , Waste Management and Research, 25, 214-219.
11.
Gohlke, O., Neukirchen, B. & Wiesner, J. ( 2006) Werkzeuge zur Bewertung von Abfallbehandlungsverfahren- Methoden und Ergebnisse (Tools for the evaluation of waste treatment processes - methods and results)Verein Deutscher Ingenieure e.V. VDI-Gesellschaft Verfahrenstechnik und Chemieingenieurwesen (VDI-GVC), Düsseldorf: http://www.ask-eu.com/default.asp?Menue=140&Bereich=4&SubBereich=14&ArtikelPPV=8808 (accessed 18 September 2009).
12.
Minister van Economische Zaken (2003) Regeling van de Minister van Economische Zaken van 8 december 2003, nr. WJZ 3073206, tot vaststelling van uitvoeringregels voor meting en uitgifte van garanties van oorsprong ten behoeve van duurzame elektriciteit (Regeling garanties van oorsprong voor duurzame elektriciteit) (Regulation issued by the Minister of Economic Affairs dated 8 December 2003 no. WJZ 3073206 for determining implementation regulations for the assessment and granting of guarantees of origin for renewable electricity (regulation for guarantees for renewable electricity)). Minister van Economische Zaken , Den Haag, The Netherlands.
13.
Ministry of the Environment Japan-MOE (2009 ) Manual for High Efficiency Power Generation, pp. 5-6. MOE, Tokyo.
14.
Mühlpointner, Th. ( 2007) CO2 Emissionshandel - Bedeutung als Produktionsfaktor beim Anlagenbetrieb (Emissions trading - significance as a production factor with respect to plant operation). In: Fachtagung zu Abfallwirtschaft und Klimaschutz (Symposium on Waste Management and Climate Protection) 8 February , pp. 71- 86, Bayerisches Landesamt für Umweltschutz, Augsburg , Germany.
15.
Murer, M.J. ( 2008) Mass and Energy Balances of the New Highly Efficient Energy-from-Waste Plant in Amsterdam. Diploma thesis, Technical University , Munich, Germany.
16.
Murer, M.J., Spliethoff, H., Van Berlo, M.A.J., De Waal, C.M.W. & Gohlke, O. ( 2009) Comparison of energy efficiency indicators for energy-from-waste plants. In: SARDINIA 2009, Twelfth International Waste Management and Landfill Symposium, 5-9 October, S. Margherita di Pula (Cagliari), Sardinia.
17.
Ökostromgesetz-Novelle (2006) 105. Bundesgesetz, mit dem das Ökostromgesetz, das Elektrizitätswirtschafts- und Organisationsgesetz und das Energie-Regulierungsbehördengesetz geändert werden (105th federal law which introduces changes to laws relating to green electricity, economics and management of electricity and the definition of the tasks of the national regulatory authorities for electricity and gas) June 2006, pp. 12-14. Ökostromgesetz-Novelle, Vienna, Austria.
18.
SenterNovem (2008) Programma Stimulering Duurzame Energieproductie (SDE) (Incentive scheme for sustainable energy production). Senter-Novem , The Netherlands, www.senternovem.nl/sde (accessed 18 September 2009).
19.
Spliethoff, H. ( 2009) Power Generation from Solid Fuels. Springer Verlag, Berlin, Germany.
20.
Thiel, St. ( 2007) Ersatzbrennstoffe in Kohlekraftwerken (Substitute fuels in coal-fired power stations). TK-Verlag, Neuruppin, Germany.
21.
van Berlo M. & de Waart H.( 2008) Unleashing the power in waste. In Proc. of the 16th Annual North American Waste to Energy Conference, May 2008 , Philadelphia, USA. ASME Publishing , New York, NY, USA.
22.
VDI (2000) Determination of Efficiencies of Conventional Power Stations. Standard of the Association of German Engineers No. 3986. VDI, Düsseldorf, Germany.
23.
VDI (2007) Emission control - Energy Conversion in Thermal Solid Waste Treatment. Standard of the Association of German Engineers No. 3460 part 2. VDI, Düsseldorf, Germany.
24.
UBA Umweltbundesamt (2005) Status Report on the Waste Sector’s Contribution to Climate Protection and Possible Potentials. Environmental Research Plan of the German Federal Ministry for the Environment, Nature Conservation and Nuclear Safety, Research Report 205 33 314 UBA-FB III: http://www.bmu.de/files/pdfs/allgemin/application/pdf/klima_abfall_en.pdf (accessed August 2005).
25.
US Department of Energy (2007) Methodology for Allocating Municipal Solid Waste to Biogenic and Non-Biogenic Energy. Energy Information Administration, Office of Coal, Nuclear, Electric and Alternate Fuels: www.eia.doe.gov/cneaf/solar.renewables/page/mswaste/msw_report.html (accessed May 2007).
