Zeta Static mixer Potential ZPM
5/5
Dryden Aqua ZPM static mixers are used to optimize the injection of products in the water as well as for the cavitation of the same. Its acronym, ZPM, correspond to Zeta potential Mixer. They are made of stainless steel if they are to be used for fresh water and in titanium or plastic for marine applications.
The principle of operation of the ZPM is very simple. The ZPM is inserted in the pool pipe (without moving parts), helping to kill existing parasites, by cavitation and agitating the water at high speed in its path. On the other hand, it also helps to lower the ZETA potential of the water, increasing the redox oxidation potential and the flocculation of the solids, giving rise to self-sterilizing water.
The water molecules are separate because of the cavitation reactions when the nano bubbles implode. The larger the pressure differential through the ZPM, the greater the cavitation reactions.
NOTE: No Energy is lost in this reaction as it is returned to the water as a heat.
Dryden Aqua's ZPMs are part of the award-winning Daisy System, which greatly optimised the water disinfection process. Within this system, the ZPM is placed before the pool filter, it amplifies the coagulation and flocculation reactions of APF and NoPhos to improve the performance of AFM® filters and reduce chlorine consumption. Placed after the filter, it mechanically destroys Cryptosporidium oocysts, bacterial clusters and individual bacteria. In this way, the water is mechanically disinfected and the chlorine yield is amplified. A clear example of what ZPMs can do is the following: Bacteria or other pathogens can be incubated on the sand in the filters, on the walls of the surge tanks and on any other surface in contact with the water. The slippery surface on tiles, gresite etc. is usually not body fat, but an invisible film of bacteria. Some pathogens such as Cryptosporidium, as well as colonies of bacteria protected by this biofilm, are extremely resistant to chlorine. The ZPM is able to break these colonies and allows the chlorine to disinfect the water before returning to the pool. Bacterial flocs can survive for a few minutes or even several hours. In contrast, bacteria from flocs broken by the ZPM can only survive for about 30 seconds. ZPMs require a relatively small and quickly amortisable investment as they have an unlimited lifetime, do not require electrical power to operate and have no operating or maintenance costs.