Ozone micro-nano bubble generation method and ozone catalytic reactor

By using a hydrodynamic coupling method with a stacked sieve plate structure, the problem of temperature rise during the operation of the ozone micro-nano bubble generator was solved, achieving uniform generation and stable mass transfer efficiency of ozone micro-nano bubbles, which is suitable for wastewater treatment.

CN120794155BActive Publication Date: 2026-07-24北京市科学技术研究院资源环境研究所(北京市土地修复工程技术研究中心)
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
北京市科学技术研究院资源环境研究所(北京市土地修复工程技术研究中心)
Filing Date
2025-07-28
Publication Date
2026-07-24

AI Technical Summary

Technical Problem

Existing ozone micro-nano bubble generators experience an increase in internal temperature after operating for a period of time, leading to a decrease in ozone solubility and mass transfer efficiency, making it impossible to operate stably and continuously.

Method used

The system employs a stacked sieve plate assembly structure, including a bottom rotating sieve plate, a middle fixed sieve plate, and an upper fixed sieve plate. Turbulence is generated through hydrodynamic coupling, which controls the bubble size distribution, reduces energy consumption, and avoids temperature rise.

Benefits of technology

It achieves uniform generation and stable mass transfer efficiency of ozone micro-nano bubbles, reduces equipment costs, and can operate continuously and stably, making it suitable for wastewater treatment.

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Abstract

The application discloses an ozone micro-nano bubble generating method, comprising the following steps: a. feeding ozone gas into an aerator at the bottom of an ozone catalytic reactor; b. feeding water or waste liquid into a water inlet of the ozone catalytic reactor, wherein the water inlet is perpendicular to the aerator, and a mixed water flow is obtained; c. the mixed water flow enters a stacked sieve plate group upwards, and ozone micro-nano bubbles are formed after the mixed water flow passes through the stacked sieve plate group; wherein the stacked sieve plate group comprises a bottom rotating sieve plate, a middle fixed sieve plate and an upper fixed sieve plate which are sequentially arranged from bottom to top; the upper fixed sieve plate and the middle fixed sieve plate are both provided with sieve holes and are connected with the inner wall of the ozone reactor; the bottom rotating sieve plate is provided with a fan-shaped hollow area and is movably connected with a shaft sleeve arranged at the center of the middle fixed sieve plate through a shaft rod. The ozone micro-nano bubble generating method can generate uniform micro-nano bubbles, is stable in temperature, and ensures the stability of the ozone solubility concentration and the mass transfer efficiency.
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Citation Information

Patent Citations

  • CN109110906A

  • CN217202216U