Hydrogen peroxide sanitizations have been around for a long time and they’re well known for getting the job done when it comes to sanitizing DI water systems. Peracetic acid has, too. But, for some people, it might be less known. So, when making the choice for a sterilant, do we do things the way they’ve always been done or do we know and consider all available options? Do we know that we have a choice?
Paracetic acid requires less contact time for killing bacteria and viruses. This matters when production is shut down while a sanitization takes place and time matters. Well, isn’t it, like, a totally different thing than hydrogen peroxide? See the chemical composition above. What this is, is a mix of acetic acid and hydrogen peroxide. In layman’s terms, we’re basically talking about a vinegar and hydrogen peroxide mix. A much smaller concentration of peracetic acid is typically needed versus hydrogen peroxide alone.
That’s one factor in cost savings, being done with the cost of needing to transport it around in drums or carboys. Less product required also means cost savings. And sanitization time can often be cut by up to 2/3! Anyone interested in saving time and money? Peracetic acid gets the job done just fine for many if not most DI water systems, but there are some exceptions. If on autopilot for the way things have always been, peracetic acid might an option worth looking into. It’s biodegradable, too. Check it out!