A method for nitrogen and phosphorus removal from high-saline aquaculture wastewater using an algae-bacteria symbiotic coupling system
By using an algae-bacteria symbiotic coupling system, and a symbiotic culture system constructed from Dunaliella salina and Haloxylon ammodendron, the problem of unstable nitrogen and phosphorus removal in high-salinity aquaculture wastewater was solved, achieving a highly efficient nitrogen and phosphorus removal effect.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- HOHAI UNIV
- Filing Date
- 2024-04-22
- Publication Date
- 2026-06-30
AI Technical Summary
Traditional physical and chemical treatment methods are difficult to efficiently remove nitrogen and phosphorus from high-salinity aquaculture wastewater, and biological treatment systems have a narrow range of environmental adaptability, resulting in unstable treatment effects.
An algal-bacterial symbiotic coupling system was adopted, using Dunaliella salina and Haloxylon ammodendron to construct a symbiotic culture system. The system was inoculated into high-salinity aquaculture wastewater and symbiotic culture medium was added. The culture conditions were optimized to improve nitrogen and phosphorus removal efficiency.
It achieved efficient removal of nitrogen and phosphorus from high-salinity aquaculture wastewater, with nitrogen and phosphorus removal rates reaching 80.3% and 98.18%, respectively, which are significantly higher than those of single algae or bacteria systems.
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Figure CN118255470B_ABST