Ozone-based membrane cleaning
Leading-edge ozone expertise has enabled Dagua to patent a process for the use of ozone microbubbles to clean ultrafiltration membranes.
The mechanism used to inject water with ozone enables the formation of very fine ozone bubbles in the water. These ozone microbubbles prevent the accumulation of particles and pollutants on the surface of the membrane's capillaries.
With ozone generated continuously in the water, the self-cleaning action of the microbubbles keeps the ultrafiltration membranes unclogged at all times.
The primary benefit of this self-cleaning process is that it eliminates the need for chemicals (chlorine, acid and alkali) in the regular maintenance of ultrafiltration membranes.
While competing technologies require powerful oxidants on a daily or weekly basis for membrane cleaning, the Dagua process breaks new ground with a system that requires no more than one or two preventive chemical cleanings a year.
Eliminating chemical cleaning agents from the filtration train not only promotes sustainable development, but offers considerable cost savings as well.