Fluorine removal agent for industrial sewage and preparation method of fluorine removal agent
By constructing a flocculation framework using modified attapulgite and other components, and combining multiple defluorination mechanisms, the problems of slow dissolution, uneven dispersion, and poor stability of existing defluorinating agents are solved, achieving efficient and stable defluorination of industrial wastewater, which is suitable for automated treatment.
Patent Information
- Application Number
- CN202512027066.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-30
- Publication Date
- 2026-01-27
- Estimated Expiration
- 2045-12-30
AI Technical Summary
Existing solid and liquid defluorinating agents have problems such as slow dissolution rate, uneven dispersion and poor stability in industrial wastewater treatment, and cannot effectively remove high concentrations of fluorides. Furthermore, liquid defluorinating agents are prone to degradation during storage, which leads to a decline in defluorination performance.
By employing modified attapulgite, Fe/Al modified kaolin, modified biochar, and modified nano-magnesium oxide, a stable flocculation framework is constructed through spontaneous assembly. Combined with the multiple mechanisms of action of polyaluminum solution and hydroxyapatite, physical interception and chemical fixation are achieved, forming a multi-component composite adsorbent to improve the fluoride removal effect.
It achieves rapid and efficient removal of fluorides from industrial wastewater, exhibits excellent stability and storage properties, maintains defluorination effectiveness under different environments, meets environmental protection requirements, and is suitable for automated treatment.