| abstract |
As a method for the recycling of dusty or sludge-containing, heavy metal-containing special waste by incorporating it in a clay-ceramic product, it is proposed that as a clay-mineral-containing raw material, overburden clay or mining material from coal mining, which is at least 80% smaller than 0, 5 mm has been ground, is used in a solid proportion in the mass offset of 20 to 90% by weight, calculated with deduction of the possibly present coal content, and thus a surcharge for a backfill material for mining in a grain size of at least 95% below 32 mm is manufactured. |