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GRECH Presentation 140405 animation

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Information about GRECH Presentation 140405 animation
Education

Published on February 14, 2008

Author: Rachele

Source: authorstream.com

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Waste to Energy – The Austrian Experience:  Waste to Energy – The Austrian Experience Waste to Energy – The Austrian Experience:  Waste to Energy – The Austrian Experience Table of contents Legal background Waste incineration and co-incineration in Austria 3 Examples of waste to energy Conclusions Waste to Energy – The Austrian Experience:  Waste to Energy – The Austrian Experience Landfill Ordinance Objective: Only pre-treated and inert wastes are landfilled. Since 01.01.2004 only pretreated waste can be landfilled with a permissible content of total organic carbon up to a maximum of 5 % by weight. Instead of the TOC of 5% it is possible to use a gross calorific value based on the dry matter of less than 6,000 kJ/kg to improve as well mechanical-biological treatment processes so that there is no obligatory enforcement of direct thermal treatment of MSW. Waste to Energy – The Austrian Experience:  Waste to Energy – The Austrian Experience Waste Incineration Ordinance Implementation of the Directive 2000/76/EC on the incineration of waste. Establishes the State of the Art for the thermal treatment of waste in Austria. Coming into force: 01.11.2002 Waste to Energy – The Austrian Experience:  Waste to Energy – The Austrian Experience Waste incineration in Austria In addition MSW-incineration plants with a capacitiy of 480,000 tonnes per year are under construction. Waste to Energy – The Austrian Experience:  Waste to Energy – The Austrian Experience Co-incineration of waste in Austria Waste to Energy - The Austrian Experience:  Waste to Energy - The Austrian Experience Examples Example 1: Waste to Energy, situation in Vienna Example 2: MSW incineration plant in Dürnrohr Example 3: MBT followed by a mechanical preparation and co-incineration in a cement plant Waste to Energy - The Austrian Experience:  Waste to Energy - The Austrian Experience Example 1: Vienna, waste to energy plants Three incineration plants (fluidised bed) for sewage sludge with a capacity of 180,000 t ds/y Two MSW incineration plants (grate firing) with a capacity of 470,000 t/y One incineration plant for hazardous waste with a capacity of 110,000 t/y One incineration plant (fluidised bed) for high calorific waste fractions with a capacity of 110,000 t/y District heating system for space and water heating purposes for 234,000 dwellings and 4,800 industrial consumers 1,600,000 inhabitants Waste to Energy - The Austrian Experience:  Waste to Energy - The Austrian Experience Example 1: Vienna, separate collection The municipal department for waste management is above all responsible for the collection of municipal waste (MA 48). Waste to Energy – The Austrian Experience:  Waste to Energy – The Austrian Experience Example 1: MSW incineration plant Spittelau The steam of the waste incineration plant is fed into the district heating system of Vienna. Situated in the middle of the town. Public relation: - Design of the plant - Guided tours (about 5,000 - 6,000 visitors per year). - The quality of the cleaned flue gas is available online on the Internet, can be read from a display in the town. Capacity of 270,000 t/y Waste to Energy – The Austrian Experience:  Waste to Energy – The Austrian Experience Example 1: MSW incineration plant Spittelau, Plant scheme Waste to Energy - The Austrian Experience:  Waste to Energy - The Austrian Experience Example 1: Vienna, Strategic environmental impact study Strategic environmental impact study - Vienna waste management policy plan Increasing total waste volume Landfill ordinance: ban on landfilling of untreated waste Participants: local authorities, NGOs, university employees, engineering consultants, Federal Environment Agency, … Aim: to develop waste management strategy for Vienna Waste to Energy - The Austrian Experience:  Waste to Energy - The Austrian Experience Example 1: Vienna, Strategic environmental impact study Concerning the waste treatment the following results have been achieved: - Construction of a new MSW incineration plant with a capacity of 250,000 t/y Construction of a digestion plant with a capacity of 25.000 t/y Wet biogenous waste from e.g. hotels and restaurants The received biogas will be burnt to gain electricity and heat for the district heating system. Waste to Energy – The Austrian Experience:  Waste to Energy – The Austrian Experience Example 1: New MSW incineration plant The steam of the waste incineration plant is fed into the district heating system of Vienna. Architecture competition Capacity of 250,000 t/y Waste to Energy – The Austrian Experience:  Waste to Energy – The Austrian Experience Example 2: MSW incineration plant in Dürnrohr The steam of the waste incineration plant is fed into the steam circle of the caloric power plant. Existing caloric power plant (coal). Public relation: - The quality of the cleaned flue gas is available online on the Internet, - Guided tours, information sessions, … (about 6,000 visitors per year). Installation of a MSW incineration plant with a capacitiy of 300,000 tonnes per year. Waste to Energy – The Austrian Experience:  Waste to Energy – The Austrian Experience Example 2: MSW incineration plant in Dürnrohr, Plant scheme Waste to Energy – The Austrian Experience:  Waste to Energy – The Austrian Experience Example 3: MBT, mechanical preparation, co-incineration in cement kiln MBT (mechanical-biological treatment) - Landfill fraction (gross calorific value < 6,000 kJ/kg) - Metal fractions - High calorific fraction - comprehensive preparation: co-incineration plant - unprepared: MSW incineration plant (grate firing) - little preparation (e.g. crushing): fluidised bed incineration plant Waste to Energy – The Austrian Experience:  Waste to Energy – The Austrian Experience Example 3: mechanical preparation for co-incineration Waste to Energy – The Austrian Experience:  Waste to Energy – The Austrian Experience Example 3: co-incineration in a cement plant There are three different places for feeding the waste fuels. From the installation engineering point of view and the environmental point of view you need homogeneous, prepared waste fuels. Waste to Energy – The Austrian Experience:  Waste to Energy – The Austrian Experience Material flow analysis MSW incineration plant MBT plant Waste to Energy – The Austrian Experience:  Waste to Energy – The Austrian Experience Conclusions Comparison of different alternatives You need an incineration capacity - Complete energy flow chart - Material flow analysis Local circumstances Public relation - Objectives of the alternatives Waste to Energy – The Austrian Experience:  Waste to Energy – The Austrian Experience Thank you for your attention! Hubert Grech Federal Ministry of Agriculture, Forestry, Environment and Water Management Division VI/3 Stubenbastei 5 1010 Vienna Austria Telefon: ++43 (0)1/51522-3432 Fax: ++43 (0)1/51522-7432 email: Hubert.Grech@lebensministerium.at

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