A deep treatment device for fluoride ions

By designing a two-stage defluorination reaction tank and a gradient magnetic separator, combined with automatic pH control and a high-efficiency defluorinating agent, the problems of insufficient removal rate and low magnetic powder recovery rate in the magnetic coagulation device are solved, achieving efficient fluoride ion treatment and low-cost operation.

CN224740963UActive Publication Date: 2026-09-11SHANDONG SANRENXING ENVIRONMENTAL PROTECTION TECH CO LTD
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Patent Information

Application Number
CN202522243177.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-10-23
Publication Date
2026-09-11
Estimated Expiration
2035-10-23

AI Technical Summary

Technical Problem

Existing magnetic coagulation devices have not optimized the reaction conditions for the deep treatment of fluorides to take into account the characteristics of fluoride ions, resulting in insufficient removal rates. At the same time, the magnetic separation equipment is poorly designed, resulting in low magnetic powder recovery rates.

Method used

The system employs a two-stage defluorination reaction tank and a gradient magnetic separator design, combined with automatic pH control and a highly efficient defluorination agent. Magnetic powder is recovered through primary and secondary magnetic separators, thereby improving reaction efficiency and magnetic powder recovery rate.

Benefits of technology

It achieves efficient fluoride removal, with effluent fluoride concentration below 0.5 mg/L, reducing wastewater treatment costs, improving magnetic powder recovery efficiency, and reducing magnetic seed loss.

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Abstract

The utility model belongs to fluorine ion sewage treatment technical field especially relates to a kind of fluorine ion advanced treatment device, the advanced treatment device includes primary defluorination reaction pool, secondary defluorination reaction pool, magnetic powder reaction pool, flocculator and sedimentation tank, a primary defluorination reaction stirrer is installed in the primary defluorination reaction pool, secondary defluorination reaction stirrer is installed in the secondary defluorination reaction pool, magnetic powder reaction stirrer is installed in the magnetic powder reaction pool, flocculator stirrer is installed in the flocculator, mud scraper is installed in the sedimentation tank. The utility model main part adopts magnetic coagulation process, and carries out the targeted design, cooperates the use of efficient defluorination agent, using magnetic coagulation process can solve the problem that sludge floc is lighter in coagulation defluorination reaction, not easy to settle, can reduce sedimentation area, improve sedimentation effect, applicable to the efficient removal of fluoride in industrial wastewater, mine water and municipal sewage.
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