Sodium Hypochlorite Gassing Off
Sodium Hypochlorite Gassing Off
(OP)
I'm working on a WTW upgrade at the moment and would appreciate some advice. A new secondary treatment building is to be constructed with chemical storage tanks being located below ground level. One of the chemicals to be stored in these tanks is sodium hypochlorite. A concern has been raised that chlorine gas could be generated during dosing (with dosing line and dose points at ground level) or while the storage tnaks are being filled and then for the gas to fall down to the storage room thereby creating health and safety concerns for operatives.
I have 2 questions:
How likely is it that chlorine gas would be generated. If generated, would the gas fall or rise?
Thanks for advice in advance.
I have 2 questions:
Thanks for advice in advance.





RE: Sodium Hypochlorite Gassing Off
Chlorine gas tends to settle. You should have the building exhaust intake located near the floor.
http://www.wrights-trainingsite.com/Sodiumhypoonb....
http://oregonstate.edu/dept/larc/sites/default/fil...
There are some precautions:
1. You should have a gas monitor in case of a spill.
2. You should vent the tanks to the building exterior.
3. You should have an independent automatic overfill protection device to prevent overfilling.
4. Hypochlorite is extremely corrosive. You should have some type of provision to change out the tanks as HDPE material will only last 7-8 years.
RE: Sodium Hypochlorite Gassing Off
Do many chemicals have the potential to off-gas?
RE: Sodium Hypochlorite Gassing Off
RE: Sodium Hypochlorite Gassing Off