Decontamination apparatus and method

Details Decontamination apparatus and method Decontamination apparatus and method

1989-10-18

1990-06-05

Thexton, Matthew A.

Gas separation

Means within gas stream for conducting concentrate to collector

B01D 3700

Patent

active

H00007854

ABSTRACT:
Apparatus and method for control of hazardous particulates such as asbestos during removal of these materials. Asbestos was applied as insulation and wall finish in many buildings before the dangers of particulate asbestos were recognized. A substantially airtight containment is provided around the affected work space. An accessway is provided to allow access for persons tools equipment, and materials. A filtration machine is provided to induce air flow into the work space, desirably at all times during the removal process. Air discharged from the work space through the filtration machine is filtered. All air passages into the work space are filtered to avoid introduction of contamination from the outside. Filtered air passages are provided to sweep the work space to reduce exposure of the workers to the hazardous materials. In case of failure to maintain air flow during the removal process, there is containment of the hazardous materials, since all passageways connecting the contaminated work space to the outside are filtered. High efficiency Particulate Air (HEPA) filters may be used.

REFERENCES:
patent: H460 (1988-04-01), Werner
patent: 4765352 (1988-08-01), Strieter
patent: 4801312 (1989-01-01), Mateson

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