A sewage treatment method and system for improving MBR membrane blockage
By adding sodium bentonite and polyquaternium salts during the MBR membrane treatment process, and coordinating aeration to control the particle size of sludge flocs, the problem of easy clogging of MBR membranes was solved, thereby extending the cleaning cycle and improving the treatment effect.
CN118908408BActive Publication Date: 2026-06-30ZHENGZHOU HENGBO TECH
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- ZHENGZHOU HENGBO TECH
- Filing Date
- 2024-09-13
- Publication Date
- 2026-06-30
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Figure CN118908408B_ABST
Abstract
This invention relates to the field of water treatment technology, specifically to a wastewater treatment method and system for improving MBR membrane clogging. The wastewater treatment method for improving MBR membrane clogging includes the following steps: S1. Biochemical treatment, utilizing the biodegradation of pollutants in wastewater by microorganisms in activated sludge; S2. MBR membrane treatment, subjecting the wastewater after the biochemical treatment to MBR membrane treatment to achieve sludge-water separation. Sodium bentonite and polyquaternium salt are added during the MBR membrane treatment process, and aeration is performed to control the sludge floc particle size to 60-120 μm. This invention, by adding sodium bentonite and polyquaternium salt to the MBR treatment section, rationally controlling the sludge floc particle size, and combining it with aeration, can effectively delay MBR membrane clogging and extend the operating cycle of the entire system.
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