Ozone oxidation technology based on high-efficiency matrix catalyst

With the accelerating process of industrialization, the large amount of wastewater generated by many industrial enterprises in the production process seriously jeopardizes the healthy development of the ecological environment. Especially in the petroleum and petrochemical plant industry, chemical synthesis industry, printing and dyeing industry, paper-making industry, pharmaceutical industry, landfill leachate, municipal sewage, and so on, a large amount of contaminated water with high organic matter content (high COD content) and high salt content (TDS ultra-high) need to be treated.

Advanced oxidation technology can effectively solve this problem. As one of the most popular advanced oxidation technologies, high efficiency ozone oxidation technology based matrix catalyst has been widely used and fully recognized by the market.

High-efficiency ozone oxidation with matrix catalyst refers to the decomposition of ozone into the more oxidizing hydroxyl radical (OH•) at room temperature, and then the organic pollutants are oxidized or the macromolecule are degraded to improve the biodegradability of wastewater. Meanwhile, the salt in water has little effect on this catalytic performance, which can effectively remove most of the COD from brine wastewater .Ozone catalytic oxidation is currently well-recognized and advanced technology for the treatment of high concentration and refractory organic wastewater. The oxidants can achieve the purpose of multi-phase catalytic oxidation and effectively degrade the refractoy pollutants in waste water, under the action of high oxidation activity and high stability catalyst. Multiphase catalytic ozonation method utilizes a solid catalyst to accelerate the oxidation reaction of liquid phase (or gas phase) under normal pressure. The solid catalyst is easy to be separated from water and has less secondary pollution, which simplifies the treatment process.

A series of high-efficiency ozone catalysts developed by our company are more than 20% efficiency higher than those commonly used in the current market. They mainly have the following characteristics:

1) Unique dual-zone pore size distribution of the carrier, compatibility of various active components, good dispersion on the carrier and strong catalytic activity;

2)  Different from common impregnation process on the market, we use the in-situ high-temperature sintering process (> 1000 ℃).The active component is firmly combined with the carrier.

3)  Recyclable regeneration and reusable.

4) The catalyst products with different properties have been developed based on making full use of the advantages of high porosity and abundant active sites of activated carbon, adjusting the formulation and production process, which are suitable for different application conditions.