一种动态膜生物反应器原位电氧化制备分离层的方法
By using electrochemical oxidation technology to modify the biofilm in situ on the surface of the conductive base membrane to form a dense separation layer, the problems of poor pollutant retention and severe membrane fouling in dynamic membrane bioreactors are solved, achieving efficient and stable water treatment results.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- INNER MONGOLIA JIUHE ENVIRONMENTAL PROTECTION TECHNOLOGY CO LTD
- Filing Date
- 2025-12-30
- Publication Date
- 2026-07-17
AI Technical Summary
Dynamic membrane bioreactors suffer from problems such as poor pollutant retention, unstable effluent quality, and severe membrane fouling due to large-pore base membranes. In particular, the loose biofilm structure makes it easy for the biofilm to detach, making it difficult to form an efficient and stable separation layer.
In situ modification of biofilms on conductive base film surfaces is achieved through electrochemical oxidation technology. Electrochemical reactions and physicochemical changes are induced by a DC electric field to form a dense functional separation layer. This includes monitoring the transmembrane pressure difference to trigger the electro-oxidation process and removing loose parts through physical cleaning.
It significantly improves the retention accuracy and antifouling performance of the separation layer, enhances the stability of effluent water quality, reduces the membrane fouling rate, and is suitable for long-term online operation of dynamic membrane bioreactors.
Smart Images
Figure CN121800322B_ABST