Method and device for treating chemical fertilizer production wastewater
By mixing wastewater, adjusting pH value and using decyanide treatment in fertilizer production wastewater treatment, the treatment problems of high ammonia nitrogen, total cyanide and sulfide in the wastewater in fertilizer plant are solved, and the deep purification of wastewater and the compliance of water quality standards are achieved.
Patent Information
- Application Number
- CN202411889070.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-20
- Publication Date
- 2025-03-21
AI Technical Summary
The wastewater generated during the production process of the fertilizer plant contains high ammonia nitrogen, total cyanide and sulfide, and has poor biochemical properties, resulting in deterioration of water quality, making it difficult for existing treatment methods to achieve ideal results.
By mixing chemical fertilizer production wastewater with domestic wastewater, using alkaline substances and oxidants to adjust the pH value, and undergo chemical reaction treatment of decyanide, complex cyanide to detach the water body, reducing the subsequent treatment load and the inhibitory and toxic effects of cyanide on microorganisms.
It has achieved deep purification of fertilizer wastewater, reduced the toxicity of cyanide and inhibited microorganisms, reduced the follow-up treatment load, and met the requirements of the "Comprehensive Sewage Emission Standard" and the "Emission Standard of Phosphorus Fertilizer Industrial Water Pollutants".