Hazardous or toxic waste destruction or containment – Containment – Solidification – vitrification – or cementation
Patent
1993-06-02
1994-11-22
Aftergut, Karen
Hazardous or toxic waste destruction or containment
Containment
Solidification, vitrification, or cementation
264 31, 264 86, 264333, 264DIG69, 405128, 588249, B09B 100, B28B 300, E04B 116
Patent
active
053671163
ABSTRACT:
Solid residues obtained in flue gas purification, in particular flue dusts, are disposed in an environmentally compatible and economical manner by acid extracting heavy metals from the residues, precipitating the heavy metals from the extract, separating the precipitate from the mother liquor, subjecting the precipitate containing heavy metals to mechanical stress during which procedure the water contained in the precipitate is released and the precipitate itself is resuspended, and then adding a hydraulic binder to the resuspended precipitate containing heavy metals and/or to the extracted residues separately from one another. The binder-containing mixture can be used to form moldings which, after hardening, are employed for the erection of boundary walls in a landfill, Additionally or alternatively, the plastic binder-containing mixture can be introduced in the form of layers into preformed landfill spaces, where it then hardens.
REFERENCES:
patent: 4250134 (1981-02-01), Minnick
patent: 4354942 (1982-10-01), Kaczur et al.
patent: 4370233 (1983-01-01), Hayes et al.
patent: 4397742 (1983-08-01), Minnick
patent: 4397801 (1983-08-01), Minnick
patent: 4617180 (1986-10-01), Vogg
patent: 4804147 (1989-02-01), Hooper
patent: 4859440 (1989-08-01), Zechner et al.
patent: 4911757 (1990-03-01), Lynn et al.
patent: 5037286 (1991-08-01), Roberts
patent: 5045115 (1991-09-01), Gmunder et al.
patent: 5245114 (1993-09-01), Forrester
Aftergut Karen
Von Roll AG
LandOfFree
Process for the disposal of flue gas residues does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Process for the disposal of flue gas residues, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for the disposal of flue gas residues will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1992377