Treatment system for preparing drinking water
By using polymers and nanocatalytic materials doped with negatively charged microporous frame materials, the problems of small membrane flux and congestion in flat membrane filtration devices are solved, achieving more efficient water treatment and longer membrane service life.
CN119701683AActive Publication Date: 2025-03-28HANGZHOU WATER TREATMENT TECH DEV CENT
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Patent Information
- Application Number
- CN202510212920.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-26
- Publication Date
- 2025-03-28
- Estimated Expiration
- 2045-02-26
AI Technical Summary
Technical Problem
During use, existing flat membrane filtration devices have small membrane flux and congestion, which affects the treatment efficiency and service life.
Method used
Polymers doped with negatively charged microporous frame materials are used as raw materials for the preparation of flat films, combined with the use of lined spacers and nanocatalytic materials, to increase membrane flux and reduce congestion.
Benefits of technology
It effectively improves the membrane flux of the flat film, reduces the phenomenon of soiling, improves water treatment efficiency and extends the service life of the film.
✦ Generated by Eureka AI based on patent content.
Abstract
The invention belongs to the field of drinking water treatment, and relates to a treatment system for preparing drinking water, which comprises a water inlet device, a filter screen device and an immersed flat sheet membrane filtering device which are arranged in sequence. The immersed flat sheet membrane filtering device comprises a membrane stack, the membrane stack comprises a plurality of membrane bag units, and each membrane bag unit comprises a flat sheet membrane. The preparation raw material of the flat sheet membrane is a high polymer doped with a negatively charged microporous frame material. The preparation raw materials of the negative electricity charged microporous framework material comprise 4, 6-dicyanoresorcinol, 1, 4-butane sultone and sylvite. The negatively charged microporous frame material has a rigid microporous structure, can increase water permeation channels in a flat sheet membrane, can form a penetrating structure with membrane pores in the flat sheet membrane, effectively shortens a water transmission path, and improves membrane flux. In addition, the negatively charged microporous frame material also has negatively charged property, has repulsive action on pollutants in the water body, can prevent the pollutants from entering the aperture of the flat sheet membrane, and reduces the pollution blocking phenomenon on the flat sheet membrane.
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