Process for the treatment of waste products

Details Process for the treatment of waste products Process for the treatment of waste products

1995-03-15

1997-05-20

Suchfield, George A.

Hazardous or toxic waste destruction or containment

Containment

Solidification, vitrification, or cementation

588 18, 588252, 588256, 588257, 405128, A62D 300, B09B 300, G21F 300

Patent

active

056307853

ABSTRACT:
In this process for the treatment of waste products, the waste products are separated in a first and a second group with respective pH-value of maximum 7 or higher than 7. The waste products of the first group are made increasingly acid whereas those of the second group are basified. This is done by adding an acid to the first group and a base to the second group in order to obtain a pH-value of maximum 5 for the first group and a pH-value of minimum 8 for the second group. An oxidant and metallic precipitating reagents are added to the first group of waste products. The thus treated waste products are combined in an alkaline mixture that is absorbed in a polymeric matrix by adding reaction components for the formation of a polymeric matrix.

REFERENCES:
patent: 4689178 (1987-08-01), Gay et al.
patent: 4770783 (1988-09-01), Gustavsson et al.
patent: 4877558 (1989-10-01), Morioka et al.
patent: 5207532 (1993-05-01), Mason et al.
patent: 5268128 (1993-12-01), Lahoda et al.
patent: 5330658 (1994-07-01), Grant et al.
patent: 5434331 (1995-07-01), Barkatt et al.
patent: 5523515 (1996-06-01), Milner

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