一种集约型处理粪便滤后水的一体化组合系统
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ENVIRONMENTAL ENG CO LTD ZHEJIANG
- Filing Date
- 2025-07-22
- Publication Date
- 2026-07-17
AI Technical Summary
Existing technologies lack efficient and intensive systems for treating filtered wastewater from feces, and the availability of sites for constructing similar feces treatment plants is limited, making it difficult for wastewater treatment plants to withstand shock loads and achieve stable discharge standards.
The combined process of coagulation + two-stage AO + MBR is adopted. The coagulation reaction forms large floc particles, the two-stage AO treatment unit performs multi-stage series biological denitrification, and the MBR membrane tank performs membrane separation, forming an intensive integrated system.
It improves the removal rate of pollutants, especially COD, ammonia nitrogen and total nitrogen, reduces the system footprint, improves the system's stability and treatment efficiency, and adapts to changes in water quality and quantity.
Smart Images
Figure CN224513336U_ABST
Abstract
Claims
1. An integrated combined system for intensive treatment of fecal filtered water, characterized by, Includes a treatment tank for treating wastewater, the treatment tank comprising: Coagulation reaction tank is used to coagulate wastewater and form large floc particles; A sedimentation tank, connected to the coagulation reaction tank, is used to receive treated wastewater and perform mud-water separation. A two-stage AO treatment unit, connected to the sedimentation tank, is used to receive the separated wastewater and remove organic matter, ammonia nitrogen, and total nitrogen from the wastewater; The MBR membrane tank is connected to the two-stage AO treatment unit to retain activated sludge and macromolecular organic matter in the treated wastewater, separate the activated sludge from the clean water, and continue to react and degrade the organic matter. The clear water tank, connected to the MBR membrane tank, is used to store or discharge the treated clear water.
2. The integrated combined system for intensive treatment of filtered water after excrement according to claim 1, characterized in that, The two-stage AO processing unit includes: The first-stage AO treatment unit is connected to the sedimentation tank; The second-stage AO processing unit is connected at one end to the first-stage AO processing unit and at the other end to the MBR membrane tank. The first-stage AO treatment unit includes a first anoxic tank and a first aerobic tank connected in sequence. One end of the first anoxic tank is connected to the sedimentation tank, and the other end is connected to one end of the first aerobic tank. The second AO treatment unit includes a second anoxic tank and a second aerobic tank connected in sequence. The other end of the first aerobic tank is connected to one end of the second anoxic tank, the other end of the second anoxic tank is connected to one end of the second aerobic tank, and the other end of the second aerobic tank is connected to the MBR membrane tank.
3. The integrated combined system for intensive treatment of filtered water after excreta according to claim 2, characterized in that, The first anoxic tank, the first aerobic tank, the second anoxic tank, and the second aerobic tank are all equipped with combined packing materials to provide an attachment surface for microorganisms.
4. The integrated combined system for intensive treatment of filtered water after excreta according to claim 2, characterized in that, The treatment tank also includes a sludge tank for storing sludge, and the sludge tank is connected to the sedimentation tank and the MBR membrane tank through a sludge discharge pipe. The sedimentation tank is a vertical flow sedimentation tank.
5. The integrated combined system for intensive treatment of fecal filtered water according to claim 2, characterized in that, The MBR membrane tank is equipped with a sludge return pipe, which is connected to the front end of the first anoxic tank and the second anoxic tank.
6. The integrated combined system for intensive treatment of fecal filtered water according to claim 2, characterized in that, It also includes multiple aeration blowers, which are respectively connected to the first aerobic tank, the second aerobic tank, and the MBR membrane tank, for providing air to the first aerobic tank, the second aerobic tank, and the MBR membrane tank for aeration.
7. The integrated combined system for intensive treatment of fecal filtered water according to claim 2, characterized in that, The MBR membrane tank is equipped with an MBR membrane. The MBR membrane is an organic flat sheet membrane.
8. The integrated combined system for intensive treatment of filtered fecal water according to claim 7, characterized in that, It also includes a membrane cleaning tank and a membrane cleaning dosing device; The membrane cleaning tank is located between the second aerobic tank and the MBR membrane tank, and is used to clean the membrane modules in the MBR membrane cleaning tank during offline periods. The membrane cleaning and dosing device is connected to the MBR membrane tank and is used to add chemicals into the membrane module to clean the membrane module.
9. The integrated combined system for intensive treatment of fecal filtered water according to claim 1, characterized in that, The treatment tank also includes a power distribution room for housing power distribution cabinets and electrical control cabinets.
10. The integrated combined system for intensive treatment of fecal filtered water according to claim 1, characterized in that, It also includes PAC dosing devices and PAM dosing devices; Both the PAC dosing device and the PAM dosing device are connected to the coagulation reaction tank and are used to add PAC and PAM into the coagulation reaction tank to carry out coagulation reaction with the wastewater.