QUESTIONS ABOUT THE EGS  

Does the EGS contain hazardous chemicals?
No. The EGS uses Purafil ESD’s patented dry-chemical media, which is non-toxic, non-hazardous, and UL Classified both before and after reaction with toxic gas.

What maintenance does the EGS require?
The EGS has just one moving part – a blower. No maintenance is required other than routine blower checks.

Is EGS media safe to handle?
Yes. Purafil ESD media are non-toxic, non-hazardous, and non-flammable. You can handle the media with your bare hands.

How do I dispose of EGS media?
EGS media is safe to dispose in common landfills.  

QUESTIONS ABOUT THE EGS DESIGN

How does the US EPA Clean Air Act Section 112(r)(7) define a worst case release?
The release of the largest quantity of a regulated substance from a vessel or process line failure that results in the greatest distance to a specified endpoint.

What is the impact area of a worst-case release from a one-ton chlorine cylinder according to the AWWA RMP Guidance?
The outer limit of the impact area is drawn at a five-mile radius in all directions from the point of impact.

What is the most widely accepted design code that applies to emergency gas scrubbers, and what does it state?
The Uniform Fire Code, Article 80 states that the full contents of the single largest storage container must be mitigated in 30 minutes.

Based on the Uniform Fire Code, what release rate must be handled by the emergency gas scrubber?
For an overfilled storage cylinder housing 2350 lbs of chlorine, the required release rate is 78 lbs/min.

How do the Laws of Thermodynamics affect the release rate from an accidentally discharged one-ton chlorine cylinder?
The Laws of Thermodynamics suggest that if a fuse plug were to default, the sudden pressure change would create an adiabatic flash. Approximately 400 lbs of liquid chlorine would flash into vapor and the remaining contents of the cylinder would spill out as a liquid at its boiling point. The EGS is designed to neutralize the initial 400 lbs for the first minute and the remaining contents at 78 lbs/min thereafter.