Application and life extension strategy of ozonation catalyst in water treatment

Ozonolysis catalyst plays a key role in the field of water treatment, its core function is to accelerate the process of ozone decomposition into oxygen. Such catalysts are usually made of transition metal oxides (such as MnO2, CuO) or precious metals (such as Pt, Pd) loaded on a porous support, with a high specific surface area and abundant active sites.
In practical applications, ozone decomposition catalysts are mainly used in drinking water treatment, industrial wastewater treatment and swimming pool water treatment. The principle of its action is to adsorb ozone molecules through the active site on the catalyst surface, reduce the activation energy of ozone decomposition, and thus accelerate the process of ozone conversion to oxygen. This process can not only eliminate the potential harm of residual ozone in the water to the ecological environment, but also improve the operating efficiency of the water treatment system.
The key to prolong the service life of catalyst is to optimize the operating conditions and improve the performance of catalyst. First of all, the influent pH value is controlled between 6-8 to avoid the corrosion of the catalyst by the strong acid and alkali environment. Secondly, maintain the appropriate water temperature (20-40℃), the temperature is too high will accelerate the catalyst deactivation. In addition, the pretreatment process is used to remove suspended matter and organic matter in the water to prevent the surface of the catalyst from being polluted. In addition, the development of new composite catalyst materials, such as doping rare earth elements or adopting core-shell structure, can improve the stability and anti-poisoning ability of the catalyst.
By optimizing catalyst formulation, improving preparation technology and strictly controlling operation parameters, the service life of ozonation catalyst can be extended effectively, the cost of water treatment can be reduced, and the treatment efficiency can be improved. In the future, with the development of nanotechnology and materials science, higher performance ozone decomposition catalysts will promote the development of water treatment technology in a more environmentally friendly and economical direction.