ATMOSPHERIC POLLUTION DUE TO DUST PRODUCED BY BITUMINOUS MIXING PLANTS

LA POLLUTION DUE A LA POUSSIERE PRODUITE PAR LES CENTRALES D'ENROBAGE

THE OBJECTIVE IS TO MAKE PRACTICAL PROPOSALS WITH RESPECT TO TECHNIQUES, COSTS AND THE ENVIRONMENT THAT WILL MINIMISE THE UNDESIRABLE EFFECTS CAUSED BY THE DUST CREATED WHEN USING CONVENTIONAL MIXING PLANTS IN BELGIUM (WITH ROTARY DRIERS). DETAILED ATTENTION WILL BE PAID TO THE EVOLUTION IN REGULATIONS IN BELGIUM COMPARED TO PRACTICE IN OTHER COUNTRIES. THE APPLICABILITY OF THE BELGIAN STANDARD FOR MEASURING THE DUST EMITTED WILL BE EXAMINED AS REGARDS THE CASE OF MIXING PLANTS. VARIOUS MEASUREMENTS WILL BE MADE IN MIXING PLANTS FITTED WITH DIFFERENT DEDUSTING SYSTEMS. THE PROBLEM OF THE QUALITY OF RECOVERED FILLER FROM SLEEVE FILTERS WILL BE EXAMINED.