Method for finely treating ion exchange resin by using micro-nano bubble water

By using micro-nano bubble water to replace traditional acid and alkali agents, and utilizing the adsorption and oxidative free radicals of micro-nano bubbles to clean ion exchange resins, the problems of large agent dosage, high cost, and large water consumption in existing technologies are solved, achieving a highly efficient and low-cost resin cleaning effect.

CN121648988APending Publication Date: 2026-03-13CHINA ELECTRONICS INNOVATION ENVIRONMENTAL TECH CO LTD
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Patent Information

Application Number
CN202511962042.8
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-12-24
Publication Date
2026-03-13

AI Technical Summary

Technical Problem

Existing technologies require large amounts of reagents, are costly, involve cumbersome processes, and consume large amounts of water when cleaning ion exchange resins. They are also difficult to effectively remove organic matter from the resins, leading to increased operating costs and wastewater treatment pressure for ultrapure water preparation systems.

Method used

Micro-nano bubble water is used to replace traditional acid and alkali agents. By preparing carbon dioxide micro-nano bubble water and contacting it with ion exchange resin, the organic matter in the resin is removed by the adsorption of micro-nano bubbles and oxidative free radicals. Combined with cyclone technology, efficient cleaning is achieved.

Benefits of technology

It significantly reduces the consumption of chemicals and water, reduces the generation of acid and alkaline wastewater, improves cleaning efficiency, reduces operating costs, and simplifies the cleaning process.

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Abstract

The invention discloses a method for finely treating ion exchange resin by using micro-nano bubble water, which comprises the following steps: (1) preparing carbon dioxide functional water in a gas-liquid mixing unit: respectively inputting deionized water with the temperature of 15-20 DEG C and the pressure of 0.61-1.01 MPa and liquid carbon dioxide with the temperature of-20-20 DEG C and the pressure of 3.04-8.11 MPa into the gas-liquid mixing unit, saturated carbon dioxide functional water is formed under the condition that the pressure is 0.61-1.01 MP; (2) micro-nano bubble water is prepared in a micro-nano bubble generation unit, the micro-nano bubble generation unit is composed of two stages of Venturi structures, the taper angle of a diffusion pipe section of each Venturi structure is 15-25 degrees, and the carbon dioxide functional water forms the micro-nano bubble water with the average particle size of nano micro bubbles being 0.08-1 micron through the micro-nano bubble generation unit; and (3) the micro-nano bubble water is injected into the resin tank filled with the ion exchange resin from the bottom of the resin tank at the flow speed of 50-70 BV / h, the cleaning amount is 100-300 BV, and cleaning of the ion exchange resin is completed.
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