Particulate abatement and environmental control system
This patent describes a method of providing an improved temporary working environment during removal of hazardous particulate material or during the encapsulation of the hazardous particulate material. It comprises defining a working space substantially sealed from space exterior of the working space; powering a portable air moving unit for exhausting air including hazardous particulate material from the defined working space to maintain 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 minority portion of the exhausted air to the space exterior of the working space; powering a portable conditioning unit to condition a majority portion of the exhausted air, the majority 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 ratio of the minority portion of the discharged air to the majority portion of the conditioned air in response to the monitored level of negative pressure.
- Assignee:
- Enviro-Air Control Corp., Houston, TX (USA)
- Patent Number(s):
- US 5004483; A
- Application Number:
- PPN: US 7-514092
- OSTI ID:
- 5081371
- Resource Relation:
- Patent File Date: 25 Apr 1990
- Country of Publication:
- United States
- Language:
- English
Similar Records
Particulate abatement and environment control system
Conceptual Approach For Estimating Potential Air Toxics And Radionuclide Airborne Emissions From A Temporary Exhaust System For The 216-Z-9 Crib Removal Action
Related Subjects
54 ENVIRONMENTAL SCIENCES
HAZARDOUS MATERIALS
ENCAPSULATION
MATERIALS HANDLING
REMOVAL
WORKING CONDITIONS
PARTICULATES
AIR POLLUTION CONTROL
POLLUTION CONTROL EQUIPMENT
DESIGN
AIR CLEANING SYSTEMS
AIR FLOW
BLOWERS
FILTRATION
PRESSURE DEPENDENCE
CONTROL
ENGINEERED SAFETY SYSTEMS
EQUIPMENT
FLUID FLOW
GAS FLOW
MATERIALS
PARTICLES
POLLUTION CONTROL
SEPARATION PROCESSES
200202* - Fossil-Fueled Power Plants- Waste Management- Noxious Gas & Particulate Emissions
540120 - Environment
Atmospheric- Chemicals Monitoring & Transport- (1990-)