一种污泥厌氧消化液处理系统
By setting up a digester equalization tank and a main reaction tank at the front end of the wastewater treatment plant, precipitates are generated through chemical reactions, reducing ammonia nitrogen concentration. The problem of excessive ammonia nitrogen load in sludge anaerobic digestion liquid treatment is solved through an automated discharge system, achieving efficient and environmentally friendly sludge anaerobic digestion liquid treatment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- MCC TIANGONG GROUP
- Filing Date
- 2025-05-27
- Publication Date
- 2026-07-17
AI Technical Summary
In existing technologies, anaerobic digestion liquid from sludge is directly transported to the front end of the wastewater treatment plant, which increases the ammonia nitrogen treatment load of the wastewater treatment plant and easily leads to substandard effluent discharge and secondary pollution.
A digester conditioning tank, a main reaction tank, and a magnesium sulfate dissolution tank are set up at the front end of the primary treatment of the wastewater treatment plant. The precipitate is generated through chemical reaction, which reduces the ammonia nitrogen concentration in the supernatant and is transported to the front end of the primary treatment through a return pipe. At the same time, a sludge discharge funnel and a stirring device are set up to realize the automated collection and discharge of the precipitate.
It significantly reduces the ammonia nitrogen treatment load of wastewater treatment plants, avoids substandard effluent discharge, and achieves efficient and environmentally friendly treatment of sludge anaerobic digestion liquid.
Smart Images
Figure CN224513322U_ABST
Abstract
Claims
1. A system for treatment of sludge anaerobic digestion liquor, characterised in that: It comprises a digestive fluid regulating tank, a main reaction tank and a magnesium sulfate dissolving tank. The digestive fluid regulating tank is communicated with the main reaction tank through a digestive fluid conveying pipe. The magnesium sulfate dissolving tank is communicated with the main reaction tank through a medicine liquid conveying pipe. The main reaction tank is communicated with a front end of a primary treatment of a sewage plant through a backflow pipe. The main reaction tank is provided with a sludge discharge hole at the bottom, which is communicated with a sludge concentration tank of the sewage plant through a sludge discharge pipe.
2. The system for treatment of sludge anaerobic digestion liquor according to claim 1, characterized in that: The main reaction tank is provided with a sludge discharge funnel at the bottom, and the sludge discharge hole is arranged at the lowest position of the sludge discharge funnel, and the distance between the sludge discharge hole and the ground is not less than 1.2 m.
3. The system for treatment of anaerobic digester liquor according to claim 2, wherein: The main reaction tank is provided with a stirring device, which comprises a stirring paddle, and the stirring paddle is inserted into the main reaction tank and is higher than the upper edge of the sludge discharge funnel by at least 0.5 m.
4. The system for treatment of anaerobic digester liquor according to claim 3, wherein: The outlet of the medicine liquid conveying pipe is higher than the highest design liquid level of the main reaction tank by at least 0.2 m.
5. The system for treatment of anaerobic digester liquor of claim 4, wherein: The inlet end of the digestive fluid conveying pipe is provided with a grid, and the grid is higher than the bottom of the digestive fluid regulating tank by not less than 0.3 m, and the outlet end of the digestive fluid conveying pipe is higher than the highest design liquid level of the main reaction tank by at least 0.3 m.
6. The system for treatment of sludge anaerobic digestion liquor according to claim 4 or 5, characterized in that: The inlet end of the backflow pipe is provided with a grid, and the grid is higher than the stirring paddle by 0.5-0.8 m.
7. The system for treatment of anaerobic digester liquid of claim 3, wherein: The sludge discharge funnel is provided with a sludge amount monitoring device.
8. The system for treatment of anaerobic digester liquor of claim 7, wherein: The digestive fluid regulating tank and the main reaction tank are respectively provided with liquid detectors for detecting the water level and water quality in the tanks.
9. The system for treatment of anaerobic digester liquor of claim 8, wherein: It further comprises a control system, the digestive fluid conveying pipe is provided with a conveying pump, the medicine liquid conveying pipe is provided with a medicine adding pump, the backflow pipe is provided with a backflow pump, the sludge discharge pipe is provided with a sludge discharge pump, and the control system is electrically connected with the stirring device, the sludge amount monitoring device, the liquid detectors, the conveying pump, the medicine adding pump, the backflow pump and the sludge discharge pump.