Particulate abatement and environmental control system

Patent · Tue Feb 25 00:00:00 EST 1992

OSTI ID:5409189

Eller, J C; Leavens, J E; Wyatt, C H

This patent describes a method of providing an improved temporary working environment during removal or encapsulation of hazardous particulate material from a working space substantially sealed from space exterior of the working space. It comprises: powering one or more portable air moving units for exhausting air including hazardous particulate material from the defined working space and maintaining a negative pressure within the working space with respect to the space external of the working space; monitoring the level of negative pressure within the working space; filtering the exhausted air to remove the hazardous particulate material; discharging a first portion of the exhausted air to the space exterior of the working space; powering a portable conditioning unit to condition a second portion of the exhausted air being defined by the exhausted air less the discharged air; returning the conditioned air to the working space; and regulating the amount of the first portion of the exhausted air in response to the monitored level of negative pressure.

• Assignee: Enviro-Air Control Corp., Houston, TX (United States)
• Patent Number(s): US 5090972; A
• Application Number: PPN: US 7-651596
• OSTI ID: 5409189
• Resource Relation: Patent File Date: 6 Feb 1991
• Country of Publication: United States
• Language: English

Related Subjects

54 ENVIRONMENTAL SCIENCES
29 ENERGY PLANNING
POLICY AND ECONOMY
AIR POLLUTION ABATEMENT
PLANNING
ENVIRONMENT
AIR POLLUTION CONTROL
HAZARDOUS MATERIALS
OCCUPATIONAL SAFETY
AIR FILTERS
PARTICULATES
WORKING CONDITIONS
CONTROL
EQUIPMENT
FILTERS
MATERIALS
PARTICLES
POLLUTION ABATEMENT
POLLUTION CONTROL
POLLUTION CONTROL EQUIPMENT
SAFETY
540120* - Environment
Atmospheric- Chemicals Monitoring & Transport- (1990-)
290300 - Energy Planning & Policy- Environment
Health
& Safety