Abstract
So called shredder dust/residue is of no unform characteristic, depending upon where and how one is separated out of shredded materials. There could be of course differences after each shredder plant system, and in our case, there are 10 different dusts emerging. They are all different in their characteristics, densities, outward apperances, and materials contained in them.So far, some analyses made, qualitatively and quntataively, however, they are all of mixed-up shredder dusts, not separatly after each segment. For a better and proper recycling/disposal treatment of shredder dust, it seems imperative to have separate analysis for each dust to define each characteristic.There are also differences after the matericals put into shredder system: in our main case, we put in whole cars, body, engine transmission and axles complete, although battery, tyres, and fluids all taken off. Normally, we are putting into shredder system, not complete car, but mainly bodies and engines /axles: differences are apparent, especially the densities of dusts and scraps out of them. The results with harder materials seem to better, even the production rate, however, no analyses of wear and tearin the system, and energy requirements being made.
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