Objective * Survey of MSW dust and gas compositions.* Development and testing of a model dust to simulate MSW fume/dust.* Mathematical model of the filtering and cleaning process.* Methods of producing dispersed nano-particle barrier coatings and porous membranes.* Use of lime and calcium sulphate for particle conditioning of flue gases.* New technique and apparatus for the quantification of filter cake adhesion forces.* Microwave assisted gas firing method achieving sintering in much shorter times.* Tests on single and multiple full scale candles at 650oC.* Validated 3D Model of gas flows in filter rig.* Technical economic assessment showing viability of process.Objectives and content Incineration processes are accepted methods by which energy is recovered into the European community from sources such as Municipal Solid Waste (MSW). The products of combustion, however, represent a range of potentially environmentally harmful by-products, which need to be separated or rendered inert at reasonable financial cost. Off gases in conventional MSW incinerators, must be cooled to below 300-200 C before passing through the electrostatic precipitator (ESP) or bag filter to remove particulate. This is costly in terms of capital and space. Furthermore, harmful acidic gases present also require elaborate downstream washing or adsorption systems, requiring plants made of costly corrosion-resistant materials to withstand the waste liquors. In addition, fly ash present in the post combustion zone of MSW incinerators greatly enhances the production of polychlorinated dibenzo-dioxins or polychlorinated dibenzo-furans (PCDD/Fs or "dioxins"), by providing catalytic metal rich surfaces for heterogeneous reactions, nucleation and condensation processes as these combustion gases cool down from about 450 C to 250 t C (de novo synthesis). By the year 2000, average European incinerator operating costs are expected to increase by 60% as a result of the necessary increased expenditure on pollution control. Hot gas filtration methods offer an erudite solution to de novo synthesis of dioxins by removing the fly ash particles from the critical temperature regime, and also offer a beneficial catalytic conversion of harmful inorganic gases to less harmful species. However, to operate at the temperatures required to be effective, around 800 C, technical solutions to filter clogging or are needed, such that the ceramic filters can be cleaned using convenient methods similar to pulse jet techniques. This project aims to provide these solutions. A multi-disciplinary approach will involve collaborating scientists and engineers from four Member States. Specialists in the sintering and firing of ceramics will strive to improve the surface strength and impart a highly microporous barrier layer on filter surfaces. Materials specialists will measure filter cake cohesive forces. Experts in hot gas filtration and cleaning processes will assess particle conditioning and coatings on filter efficiency and cleaning performance. Computational fluid dynamics specialists will model gas flows through and around porous media during the cleaning process. In this way, successful European methods of high temperature filtration processes involving ceramic filter media will become Best Available Techniques Not Entailing Excessive Cost (BATNEEC), in treating the hot gases from MSW incineration and related processes. Present developments in hot gas filtration have been dominated by the USA, where $20 million pilot hot filter plants for pressurised fluidised bed combustion systems have been built. Fields of science engineering and technologymaterials engineeringcoating and filmsnatural sciencesphysical sciencesclassical mechanicsfluid mechanicsfluid dynamicscomputational fluid dynamicsengineering and technologynanotechnologynano-materialsengineering and technologyenvironmental engineeringwaste managementwaste treatment processesengineering and technologymaterials engineeringceramics Programme(s) FP4-BRITE/EURAM 3 - Specific research and technological development programme in the field of industrial and materials technologies, 1994-1998 Topic(s) 0202 - New methodologies for product design and manufacture Call for proposal Data not available Funding Scheme CSC - Cost-sharing contracts Coordinator CAPENHURST.TECH LIMITED EU contribution No data Address Capenhurst Technology Park CH1 6ES CHESTER United Kingdom See on map Total cost No data Participants (4) Sort alphabetically Sort by EU Contribution Expand all Collapse all AUSTRIAN RESEARCH CENTERS SIEBERDORF Austria EU contribution No data Address 2444 SEIBERSDORF See on map Total cost No data ENGINEERING SOLUTIONS INTERNATIONAL LTD Ireland EU contribution No data Address Howth Junktion Business Park 1 Dublin See on map Total cost No data FORSCHUNGSZENTRUM KARLSRUHE GMBH - TECHNIK UND UMWELT Germany EU contribution No data Address 5,Hermann-von-Helmholtz-Platz 1 76344 EGGENSTEIN-LEOPOLDSHAFEN See on map Total cost No data Universität Gesamthochschule Essen Germany EU contribution No data Address Leimkugelstraße 10 45141 Essen See on map Total cost No data
