Wilhelm Hoeflinger
Fine dust, especially those fractions below 10 and 2.5 microns can cause serious heart and respiratory disease and stringently requires effective pollutant standards and methods for their reduction. Therefore stricter emission European Union regulations [1, 2] were recently established, in order to improve the fine dust situation of the ambient air in Europe. Nowadays among different technical separation devices, filtering, regenerate dust separators are the most suitable ones to meet very low dust emission concentrations of industrial exhaust gases. But the disadvantage of this separator is the relative high pressure drop and sometimes a premature filter media clogging, which requires its costly replacement. In order to minimise this disadvantage, suitable design and standard laboratory test methods are in use. E.g. in Europe a German guideline (VDI 3926) [2] exists, by which in laboratory test runs optimal filter media can be evaluated. The problem is that within these test methods a so called aging procedure is included. The clogging behaviour of the aging procedure was basically investigated in this paper and a new test procedure for comparing different filter media with respect to the aging was developed
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