一种用于污水脱氮的复合填料及其制备方法
By combining steam-explosion-modified wood chips with immobilized microorganisms, an aerobic external and anaerobic internal microenvironment is formed, solving the problems of low microbial aggregation efficiency and high operating costs in existing wastewater denitrification systems, and achieving rapid start-up and stable wastewater denitrification effects.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- ZHEJIANG ACADEMY OF AGRICULTURE SCIENCES
- Filing Date
- 2022-12-19
- Publication Date
- 2026-07-17
AI Technical Summary
Existing wastewater denitrification systems using wood chips or sawdust fillers suffer from low efficiency in the aggregation of functional microorganisms, unsatisfactory denitrification effects, high operating costs, and difficulty in rapid startup and long-term stable operation.
Steam explosion was used to modify wood chips, creating an aerobic external and anaerobic internal microenvironment. Combined with immobilized nitrifying and denitrifying microorganisms, composite packing was prepared to improve microbial aggregation efficiency and denitrification effect.
It significantly improves wastewater denitrification efficiency, reduces operating costs, achieves rapid start-up and long-term stable wastewater treatment results, simplifies technical requirements, and reduces the amount of activated sludge generated.
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Figure CN116332368B_ABST