Entry/exit decontamination system using adsorbent powder

Details Entry/exit decontamination system using adsorbent powder Entry/exit decontamination system using adsorbent powder

1985-05-21

1989-07-25

Hornsby, Harvey C.

Cleaning and liquid contact with solids

Apparatus

Automatic controls

134 93, 134105, 134109, 134200, 312 1, B08B 700

Patent

active

048503800

ABSTRACT:
A system for decontaminating persons or objects passing between a contaminated area and a clean area or shelter has an air lock decontamination chamber and a shower of powdered adsorbent. A blower circulates and disperses the powdered adsorbent throughout the air lock and contacts the adsorbent particles with the outer surfaces of persons or objects in the air lock. A control system ensures that the decontamination system is fool-proof. A network of ducts and valves or separators automatically transfers the adsorbent from the deccontamination chamber to a regeneration chamber for demand-responsive regeneration. In a first embodiment, a fluidized bed of powdered absorbent is used in the decontamination chamber and the adsorbent is periodically regenerated in a vacuum chamber by microwave heating. In a second embodiment, a gravity-fed shower of powdered adsorbent is used in the decontamination chamber and the adsorbent is continuously or periodically regenerated by moving the adsorbent through a regenerating kiln.

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