Biological filler for nitrogen removal enhancement in aerobic tank and preparation and application thereof
By loading denitrifying and nitrifying bacteria onto biological packing material and adding a conductive layer to form a three-layer biofilm, the problem of low nitrogen removal efficiency in municipal wastewater treatment plants when treating industrial wastewater is solved, achieving efficient nitrogen conversion and removal.
CN119240924BActive Publication Date: 2026-06-02HANGZHOU INST OF ECOLOGICAL & ENVIRONMENTAL SCI (HANGZHOU URBAN ECOLOGICAL ENVIRONMENT MONITORING STATION)
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- HANGZHOU INST OF ECOLOGICAL & ENVIRONMENTAL SCI (HANGZHOU URBAN ECOLOGICAL ENVIRONMENT MONITORING STATION)
- Filing Date
- 2024-11-18
- Publication Date
- 2026-06-02
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Figure CN119240924B_ABST
Abstract
The application discloses a biological filler for nitrogen removal enhancement of an aerobic tank and a preparation and application thereof, and successfully solves the problem of weak activity of denitrifying bacteria by loading three-layer biological fillers of inner-layer-denitrifying bacteria, middle-layer-conductive layer and outer-layer-nitrifying bacteria on the filler, and realizes rapid formation of a biofilm. In addition, a metal conductive layer is additionally arranged in the middle to participate in electron transfer in the microbial denitrification process, and the biofilm layers on both sides realize rapid formation of the biofilm, so as to realize nitrogen conversion and removal. The method can not only maintain the biological activity of the bacterial cells and realize rapid formation of the biofilm, but also promote separation of the bacterial cells and refractory organic matters, thereby reducing the toxic effect on the bacterial cells.
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