Aqueous waste vitrification process and apparatus

Details Aqueous waste vitrification process and apparatus Aqueous waste vitrification process and apparatus

1986-02-12

1987-05-19

Kellogg, Arthur

Glass manufacturing

Processes

Repairing or cleaning of apparatus; or batch dust prevention...

65 19, 65 45, 65 62, 65168, 65134, 65181, C03B 502

Patent

active

046664904

ABSTRACT:
A process is provided for treating an aqueous stream of nonradioactive hazardous waste containing inorganic compounds capable of forming oxides upon thermal treatment in which at least one of the oxides is a glass former, glass intermediate or a glass modifier. The process comprises (a) introducing the waste stream into a thermal treatment zone; (b) heating the inorganic compounds in the thermal treatment zone to convert the compounds to the corresponding inorganic oxides and form a melt solution while vaporizing volatile components to form an off-gas; (c) scrubbing the off-gas to provide a ventable flue gas and a liquid condensate with the condensate being recycled to the thermal treatment zone; and (d) removing the melt solution from said thermal treatment zone and cooling the melt solution to form a nonleachable glass containing the hazardous waste. An apparatus particularly adapted to practice the process is also provided.

REFERENCES:
patent: 1454082 (1923-05-01), Schlosser
patent: 3321409 (1967-05-01), Grover et al.
patent: 3647405 (1972-03-01), Smith
patent: 3880629 (1975-04-01), Dulin et al.
patent: 3942966 (1976-03-01), Kroyer et al.
patent: 4020004 (1977-04-01), Schulz et al.
patent: 4065282 (1977-12-01), Morey
patent: 4242551 (1981-02-01), Nishimura
patent: 4297304 (1981-10-01), Scheffler et al.
patent: 4299611 (1981-11-01), Penberthy
patent: 4309204 (1982-01-01), Brooks
patent: 4353725 (1982-10-01), Hohman et al.
patent: 4376070 (1983-03-01), Pope et al.
patent: 4422862 (1983-12-01), Wardlaw
patent: 4424149 (1984-01-01), Bege et al.
The CRC Handbook of Chemistry and Physics, 55th ed. CRC Press, pp. E-6 through E-9 (1974).

Affiliated with

Also associated with

Rating

Aqueous waste vitrification process and apparatus does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Aqueous waste vitrification process and apparatus, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Aqueous waste vitrification process and apparatus will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1562166