SYMPOSIA PAPER Published: 01 January 1992
STP19544S

Fixation of Residues from Special Hazardous Waste Incinerators for Shallow Land Disposal

Source

The residues from special waste incineration (slag, filter dust, and the reaction products from off-gas purification—the salts) must be stored at special dumps since they are highly polluted with heavy metals. The extraction rate of heavy metals out of unfixed filter dusts and salts is very high. Therefore, salts can only be stored underground. On the other hand, getting licenses to build such special dumps is very difficult. A fixation of boiler ash (a special filter dust) or salts with water glass and aluminum phosphate (AlPO4) hardener reduces the leachability of heavy metal so well that these fixed residues can be dumped together with municipal or commercial and industrial refuse rather than in an underground repository.

Author Information

Assmann, D
Nuclear and Chemical Waste Management, Institute of Chemical Technology, KFA-Julich, Julich, Federal Republic of Germany
Brodda, B-G
Nuclear and Chemical Waste Management, Institute of Chemical Technology, KFA-Julich, Julich, Federal Republic of Germany
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Details
Developed by Committee: D34
Pages: 90–102
DOI: 10.1520/STP19544S
ISBN-EB: 978-0-8031-5186-4
ISBN-13: 978-0-8031-1443-2