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Role of waste management with regard to climate protection: a case study

Department of Mechanical Process Engineering, Institute of Chemical Engineering, Vienna University of Technology, Vienna, Austria

Gerd Mauschitz

Department of Mechanical Process Engineering, Institute of Chemical Engineering, Vienna University of Technology, Vienna, Austria, gmausch{at}mail.zserv.tuwien.ac.at

According to the Kyoto Protocol and the burden-sharing agreement of the European Union, Austria is required to cut greenhouse gas (GHG) emissions during the years 2008 to 2012 in order to achieve an average reduction of 13%, based on the level of emissions for the year 1990. The present contribution gives an overview of the history of GHG emission regulation in Austria and identifies the progress made towards the realization of the national climate strategy to attain the GHG emission targets. The contribution uses Austria as an example of the way in which proper waste management can help to reduce GHG emissions. The GHG inventories show that everything must be done to minimize the carbon input due to waste deposition at landfill sites. The incineration of waste is particularly helpful in reducing GHG emissions. The waste-to-energy by incineration plants and recovery of energy yield an ecologically proper treatment of waste using state-of-the-art techniques of a very high standard. The potential for GHG reduction of conventional waste treatment technologies has been estimated by the authors. A growing number of waste incinerators and intensified co-incineration of waste in Austrian industry will both help to reduce national GHG emissions substantially. By increasing the number and capacity of plants for thermal treatment of waste the contribution of proper waste management to the national target for reduction of GHG emissions will be in the range of 8 to 14%. The GHG inventories also indicate that a potential CO₂ reduction of about 500 000 t year^—1 is achievable by co-incineration of waste in Austrian industry.

Key Words: Kyoto target • Austrian climate strategy • waste management • GHG emissions • wmr 1323—5

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