一种热区城镇污水低碳脱氮除磷的装置及方法
By combining segmented influent, endogenous short-cut denitrification, anaerobic ammonia oxidation, and cyclone separator with calcium ion dosing, granular sludge is formed, which solves the problems of insufficient carbon source and high energy consumption in traditional nitrogen and phosphorus removal processes, and achieves low-carbon and high-efficiency nitrogen and phosphorus removal in urban sewage.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- HAINAN UNIV
- Filing Date
- 2025-03-25
- Publication Date
- 2026-07-17
AI Technical Summary
Traditional nitrogen and phosphorus removal processes suffer from insufficient carbon sources and high energy consumption in urban wastewater treatment, making it difficult for effluent to meet standards. Furthermore, the application of anaerobic ammonia oxidation processes is limited in wastewater with low substrate concentrations.
The system employs a segmented influent, endogenous short-cut denitrification and anaerobic ammonium oxidation method, combined with a hydrocyclone separator and calcium ion addition, to form granular sludge. It utilizes the organic matter in the wastewater for autotrophic and heterotrophic denitrification. Through segmented influent and dual sludge recirculation technology, the operating conditions of the anoxic and aerobic zones are optimized to achieve low-carbon and high-efficiency nitrogen and phosphorus removal.
It significantly improves nitrogen and phosphorus removal efficiency, reduces energy consumption and carbon emissions, reduces treatment costs and land area, and avoids sludge bulking and system instability, achieving low-carbon and high-efficiency wastewater treatment.
Smart Images
Figure CN120058120B_ABST