Ozone Catalytic Oxidation Technology

Ozone catalytic oxidation technology generates hydroxyl radicals (·OH) in wastewater, which possess extremely strong oxidizing properties. The ozone catalytic oxidation reaction involves both direct oxidation by ozone and indirect oxidation by hydroxyl radicals.

Ozone oxidation exhibits certain selectivity, often producing small molecular carboxylic acids, ketones, and aldehydes as oxidation products, making it difficult to completely degrade organic matter into CO₂, H₂O, or other inorganic substances. Ozone catalytic oxidation technology combines efficient ozone catalysts with ozone, significantly enhancing the degradation reaction speed and efficiency of organic matter in wastewater through enrichment—catalytic activation—oxidative degradation. By integrating the strong oxidizing properties of ozone with the enrichment and catalytic activity characteristics of catalysts, it more effectively addresses issues such as low ozone treatment efficiency, low ozone utilization, and high operating costs.

Ozone catalytic oxidation technology, under the action of catalysts, enables the complete degradation or transformation of refractory organic components in sewage within a short time, thereby achieving the goal of purifying water bodies. Catalytic ozonation technology is a novel water treatment method aimed at enhancing the oxidizing performance of ozone and improving its utilization efficiency. This technology utilizes catalysts to synergize with ozone oxidation, reducing reaction activation energy or altering the reaction pathway, thereby achieving deep oxidation and maximizing the removal of organic pollutants. By strengthening the generation of more hydroxyl radicals with extremely high redox potential through catalysts, organic pollutants are completely degraded. Catalysts form complexes with organic pollutants in water, making them more susceptible to oxidative decomposition. They also enrich ozone and organic matter, thereby accelerating the oxidative decomposition rate of organic compounds.

The ozone catalytic oxidation process features a short workflow, simple equipment, compact treatment units, small footprint, few electrical devices, low power consumption, low operating costs, ease of operation, and automatic control, simplifying on-site operational requirements. When water volume and quality change, adjustments can be made to water quality and quantity, demonstrating strong adaptability and resilience to shock loads. It can be combined with other technologies (such as biochemical methods) to leverage their respective advantages and further improve treatment effectiveness.

Ozone catalytic oxidation technology can be used both for pretreatment to enhance biodegradability and for advanced treatment to mineralize refractory organic matter into H₂O and CO₂ without producing sludge. It has a wide range of applications in wastewater treatment, including:

Landfill leachate treatment,

Food waste wastewater treatment,

High-salinity, high-COD, high-ammonia nitrogen pharmaceutical and chemical wastewater treatment,

Coal chemical industry wastewater treatment,

Electroplating and printed circuit board industry wastewater treatment,

Pesticide wastewater treatment,

Pharmaceutical intermediate wastewater treatment,

Pharmaceutical wastewater treatment,

Papermaking wastewater treatment,

Textile dyeing wastewater treatment,

Industrial park wastewater treatment,

Heavy metal wastewater treatment.