Author Topic: Can you clean and sanitize a plastic fermenter that had a bad batch?  (Read 2158 times)

Offline Stevie

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Re: Can you clean and sanitize a plastic fermenter that had a bad batch?
« Reply #15 on: October 05, 2017, 10:16:13 AM »
Mark V was a big proponent of this type of sanitizer. Never tried it, but one should always add chemicals to water and never vice versa.

Offline Nathan

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Re: Can you clean and sanitize a plastic fermenter that had a bad batch?
« Reply #16 on: October 06, 2017, 04:37:28 PM »
Iodophors or hydrogen. Peroxide


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Offline Nathan

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Re: Can you clean and sanitize a plastic fermenter that had a bad batch?
« Reply #17 on: October 07, 2017, 08:27:40 AM »
I've used a cleaner called Oxy-Pro a H2O2 based powder mixed access to instructions and left over night it removes scale from kettles stains from fermenters and sanitizes as well
I double rinse after and have never had a problem


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Offline dmtaylor

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Re: Can you clean and sanitize a plastic fermenter that had a bad batch?
« Reply #18 on: October 09, 2017, 09:47:05 AM »
This morning a janitor here at work decided it was a good idea to mix bleach and another acid-based cleaner.  This caused a release of chlorine gas and an ambulance ride.

No exaggeration.  Here's an excerpt from the Control Room log:

09-oct-2017   07:24:00   0724 Received report of a medical emergency in the I&C shop.

0727 Received report of chlorine fumes in the 4th floor, west janitor closet (NSB 412).

0729 Announced limited plant evacuation of the NSB.

0733 Two individuals are on supplied air investigating source of fumes.

0734 Announced limited plant evacuation of the NSB again.

0734 Received report that the source of the fumes was the mixing of an oxidizer and acid with bleach(Chlorine concentrate Regular Household Bleach).

0737 Declared an Unusual Event per HU 3.1, Release of Toxic or Flammable Gases Deemed Detrimental to Normal Operation of the Plant).

0740 Report from the field that 2 cups of sodium hypochlorite (Chlorine concentrate Regular Household Bleach) with one cup of grout cleaner were mixed with water causing the release of the Chlorine gas.

0743 There is no smell of chlorine at the scene. Individuals are off supplied air.

0745 Ambulance arrived at the gate and is coming on site.

0749 EMT’s are attending the affected individual.

0750 NRC resident informed of the ambulance arrival on site and of the Unusual Event.

0751 Verified the exhaust fans are running the NSB 412 Janitor's Closet.

0755 Ambulance is departing with the affected individual.

0803 Draeger tube chlorine results are negative in the NSB 412 room.

0807 Walkdown of the entire NSB is complete and all floors are clear.

0809 Access to the NSB is restored.

0944 The Unusual Event is terminated.


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A whole lot of people couldn't do their jobs for a couple of hours... during a refueling outage at a nuclear power station.  Any delay during outage time can potentially cost tens of thousands of dollars.  Some managers will be very excited about this event.

Bottom line:

Please don't mix bleach with anything, unless maybe you're a degreed chemist.

Please.
Dave

The world will become a much more pleasant place to live when each and every one of us realizes that we are all idiots.