Beta-cyclodextrin coagulant aid as well as preparation method and application thereof
By introducing olefin groups, amino groups and fluoride ions into β-cyclodextrin, β-cyclodextrin coagulants were prepared and compounded with inorganic coagulants, which solved the problem of low efficiency of traditional coagulants in removing PFAS and achieved efficient and environmentally friendly water treatment effects.
Patent Information
- Application Number
- CN202510736970.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-06-04
- Publication Date
- 2025-09-16
AI Technical Summary
Existing coagulants have low removal efficiency and large dosage when treating PFAS pollution, which makes it difficult to meet water treatment requirements. In addition, long-term use of activated carbon will lead to a decrease in adsorption efficiency.
By introducing olefin groups, amino groups and fluoride ions into β-cyclodextrin, β-cyclodextrin coagulant aids are prepared to enhance their charge density and hydrophobicity, improve the flocculation effect, and compound with inorganic coagulants to form composite coagulants.
It significantly improves the removal efficiency of perfluoroalkyl and polyfluoroalkyl substances, reduces the amount of inorganic coagulants used, is applicable to a wide range of water treatment fields, and has good water treatment effects.