Since you seem to be insisting that someone comment, here you go, and remember, you asked for it.
I looked at the Zero Res website, and they don't say anything about "enzymes and alkalines". They say they use Empowered Water (TM) which is "electrolyzed and oxidized"
Carpet cleaning and other home surface cleaning by ZEROREZ® . I don't know what that means, but electrolysis is the process by which water is broken down into its constituent elements, hydrogen and oxygen. They also refer to it as "oxidative water", whatever that means. Perhaps they electrolyze the water and dissolve some of the oxygen back into the water without the hydrogen. That dissolved oxygen might result in a lower pH, allowing them to claim "alkalines". They also provide an "Empowered Water Service" (no TM) which sounds like a water softener or deionizer.
My take on this is it's just a gimmick to clean your carpet/upholstery with hot DI water, which may be ineffective on certain types of soils. Here's the only online comment I could find:
World Famous Dry Carpet Cleaning Reports: Zero Rez Myth
EDIT: Although the main page of the ZeroRez website claims (in very small print) that they have a patented process, I find no patent number on their site nor do I find any reference to ZeroRez or "empowered water" doing a search of the US Patent Office Website. :hm
EDIT #2: I'm sorry, there is such a thing as "electolyzed water"
Electrolyzed water - Wikipedia, the free encyclopedia . If I understood that, they take salty water and electrolyze it and basically make water with bleach in it. So I guess you can just rent a supermarket extractor or call your regular carpet people and use/have them use water with bleach instead of detergent.