Thermal desorption unit

Details Thermal desorption unit Thermal desorption unit

1993-10-29

1996-05-07

Spear, Frank

Liquid purification or separation

Processes

Including controlling process in response to a sensed condition

210771, 210774, 210241, B01D 3501

Patent

active

055142869

ABSTRACT:
An improved method and apparatus for removing chemical contaminants from soil. Contaminated soil is loaded and hydraulically sealed in the treatment vessel. A vacuum is placed on the material, which is indirectly heated through the heat transfer plate from a natural gas of propane fired burner located under the plate. As the material is heated, contaminants are vaporized and flow through the vacuum discharge pipe toward the condenser unit. Vapors are cooled in the condenser through a series of refrigerated condensing coils where the vaporized material is converted back to a liquid and discharged to a liquid recovery vessel. After treatment, material is downloaded into a roll-off type container for post-treatment analysis and cool down prior to recycling or backfilling. Recovered liquids are recycled or sent to an appropriate facility. Process time is typically 45 minutes to an hour for a six cubic yard batch. The system is self-contained, mobile, and operable by a two-person crew.

REFERENCES:
patent: 3554143 (1971-01-01), Rodgers
patent: 3859933 (1975-01-01), Von Klenck
patent: 3991481 (1976-11-01), Coraor et al.
patent: 4038152 (1977-07-01), Atkins
patent: 4202282 (1980-05-01), Hobbs et al.
patent: 4235676 (1980-11-01), Chambers
patent: 4245570 (1981-02-01), Williams
patent: 4301750 (1981-11-01), Fio Rito et al.
patent: 4402274 (1983-09-01), Meenan et al.
patent: 4546711 (1985-10-01), Kerwin
patent: 4699721 (1987-10-01), Meenan et al.
patent: 4738205 (1988-04-01), Noland
patent: 4765255 (1988-08-01), Chiarva
patent: 4778606 (1988-10-01), Meenan et al.
patent: 4864942 (1989-09-01), Fochtman et al.
patent: 5011329 (1991-04-01), Nelson et al.
patent: 5027721 (1991-07-01), Anderson
patent: 5052858 (1991-10-01), Crosby et al.
patent: 5103578 (1992-04-01), Rickard
patent: 5114497 (1992-05-01), Johnson et al.
patent: 5127343 (1992-07-01), O'Ham
patent: 5190405 (1993-03-01), Vinegar et al.
patent: 5199354 (1993-04-01), Wood
patent: 5224432 (1993-07-01), Milsap, III
patent: 5228803 (1993-07-01), Crosby et al.
patent: 5230167 (1993-07-01), LaHoda et al.
patent: 5281258 (1994-01-01), Markovs

Affiliated with

Also associated with

Rating

Thermal desorption unit does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Thermal desorption unit, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Thermal desorption unit will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1224709