CN212559864U - Town sewage treatment system of three kinds of water of surface of earth up to standard - Google Patents
Town sewage treatment system of three kinds of water of surface of earth up to standard Download PDFInfo
- Publication number
- CN212559864U CN212559864U CN202021009918.XU CN202021009918U CN212559864U CN 212559864 U CN212559864 U CN 212559864U CN 202021009918 U CN202021009918 U CN 202021009918U CN 212559864 U CN212559864 U CN 212559864U
- Authority
- CN
- China
- Prior art keywords
- subsystem
- sludge
- outlet
- zone
- water
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Abstract
The utility model discloses a town sewage treatment system of accurate three types of water of surface of earth up to standard, the system includes: the coarse grid lifting subsystem is provided with a sewage inlet pipe and a sewage outlet pipe, and the sewage outlet pipe is sequentially connected with the fine grid aeration sand setting subsystem, the five-section AAO subsystem, the peripheral inlet and outlet secondary sedimentation tank subsystem, the magnetic coagulation sedimentation subsystem, the ozone contact oxidation subsystem, the homogeneous filter material filter tank subsystem and the contact disinfection subsystem; the magnetic coagulation sedimentation subsystem is respectively provided with a sludge outlet and a sewage outlet, and the sewage outlet is sequentially connected with the ozone contact oxidation subsystem, the homogeneous filter material filtering subsystem and the contact disinfection subsystem; the contact disinfection subsystem is provided with a standard water outlet. The system realizes the combined treatment of the urban sewage treatment system in various modes, and can reach the standard of the surface of the earth and the standard of three types of water after treatment; can ensure that the effluent stability meets the high standard requirement and has obvious economic advantages.
Description
Technical Field
The utility model relates to a town sewage treatment field especially relates to a town sewage treatment system of three types of water on earth's surface up to standard.
Background
At present, with the requirement of river basin treatment, the examination pressure of river sections is getting more and more severe, and local discharge standards which are strict with the national first-class A are also provided in various places.
Under the background of such a large environment, the high-standard drainage treatment process commonly used in the urban sewage treatment plant at present comprises the following steps: AAO + MBR process, AAO + ultrafiltration process, etc.
However, the existing treatment processes for the urban sewage treatment plants generally have the defects of high investment, high operation cost, complex operation and the like, so that the overall cost of the sewage treatment plants is higher, and the local government is under greater economic pressure.
SUMMERY OF THE UTILITY MODEL
Based on the problem that prior art exists, the utility model aims at providing a town sewage treatment system of three types of water of surface of earth up to standard, can solve the high standard drainage treatment process that current town sewage treatment plant was used always, the investment that exists is high, the running cost is high, and moves complicated scheduling problem.
The utility model aims at realizing through the following technical scheme:
the embodiment of the utility model provides a town sewage treatment system of accurate three types of water of surface of earth up to standard, include:
the system comprises a coarse grid lifting subsystem, a fine grid aeration sand setting subsystem, a five-section AAO subsystem, a perimeter-in perimeter-out secondary sedimentation tank subsystem, a magnetic coagulation sedimentation subsystem, an ozone contact oxidation subsystem, a homogeneous filter material filtering subsystem and a contact disinfection subsystem; wherein the content of the first and second substances,
the coarse grid lifting subsystem is provided with a sewage inlet pipe and a sewage outlet pipe, and the sewage outlet pipe is sequentially connected with the fine grid aeration sand setting subsystem, the five-section AAO subsystem, the peripheral inlet and outlet secondary sedimentation tank subsystem and the magnetic coagulation sedimentation subsystem;
the magnetic coagulation sedimentation subsystem is respectively provided with a sludge outlet and a sewage outlet, and the sewage outlet is sequentially connected with the ozone contact oxidation subsystem, the homogeneous filter material filtering subsystem and the contact disinfection subsystem;
the contact disinfection subsystem is provided with a standard water outlet.
By the above, the utility model provides a technical scheme can see out, the embodiment of the utility model provides a town sewage treatment system of three types of water on earth's surface standard to standard, its beneficial effect is:
through the organically connected coarse grating lifting subsystem, the fine grating aeration sand setting subsystem, the five-section type AAO subsystem, the peripheral inlet and outlet secondary sedimentation tank subsystem, the magnetic coagulation sedimentation subsystem, the ozone contact oxidation subsystem, the homogeneous filter material filtering subsystem and the contact disinfection subsystem, the town sewage treatment system is formed by combining a plurality of modes, and the treated water can stably reach the ground surface standard three types. The utility model discloses a processing system can guarantee that the water is stable to reach high standard requirement, has obvious economic advantage again, and the design of the town sewage treatment plant of the three standard emission standards of our country is newly-built and is carried the mark and reform transform and provide the reference.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the description below are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic view of a town sewage treatment system for standard surface water and quasi-three water provided by an embodiment of the utility model;
the parts corresponding to each mark in the figure are: 1-a coarse grid lifting subsystem; 2-fine grid aeration sand setting subsystem; 3-five stage AAO subsystem; 4-entering the circulation and discharging the secondary sedimentation tank subsystem; 5-magnetic coagulation sedimentation subsystem; 6-ozone contact oxidation subsystem; 7-homogeneous filter material filtering subsystem; 8-a contact disinfection subsystem; 9-a sludge dewatering subsystem; 10-a sludge storage tank; 11-sludge dewatering equipment; 12-an ozone preparation device; 13-sludge reflux pump; the pipeline marked WS in the figure is a sewage pipeline; the pipeline marked WN in the figure is a sludge pipeline; the pipeline labeled GF in the figure is an air pipeline; the PAC pipeline marked in the figure is a PAC medicine adding pipeline; the line labeled PAM in the figure is the PAM dosing line.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the specific contents of the present invention, and it should be understood that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiment of the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention. Details not described in the embodiments of the present invention belong to the prior art known to those skilled in the art.
As shown in figure 1, the embodiment of the utility model provides a town sewage treatment system of three types of water on up to standard earth's surface, include:
the system comprises a coarse grid lifting subsystem, a fine grid aeration sand setting subsystem, a five-section AAO subsystem, a perimeter-in perimeter-out secondary sedimentation tank subsystem, a magnetic coagulation sedimentation subsystem, an ozone contact oxidation subsystem, a homogeneous filter material filtering subsystem and a contact disinfection subsystem; wherein the content of the first and second substances,
the coarse grid lifting subsystem is provided with a sewage inlet pipe and a sewage outlet pipe, and the sewage outlet pipe is sequentially connected with the fine grid aeration sand setting subsystem, the five-section AAO subsystem, the peripheral inlet and outlet secondary sedimentation tank subsystem and the magnetic coagulation sedimentation subsystem;
the magnetic coagulation sedimentation subsystem is respectively provided with a sludge outlet and a sewage outlet, and the sewage outlet is sequentially connected with the ozone contact oxidation subsystem, the homogeneous filter material filtering subsystem and the contact disinfection subsystem;
the contact disinfection subsystem is provided with a standard water outlet.
The system further comprises: and the sludge dewatering subsystem is connected with the sludge outlets of the circum-inlet and peri-outlet secondary sedimentation tank subsystem and the magnetic coagulation sedimentation subsystem. Preferably, the sludge dewatering subsystem is composed of a sludge storage tank and a sludge dewatering device which are connected in sequence.
In the system, the thick grid lifting unit consists of the sewage inlet pipe, the steel wire rope type thick grid, the submersible sewage pump and the outlet which are connected in sequence.
In the system, the fine grid aeration grit settling subsystem is composed of a water inlet pipe, a pore plate stepped grid, an aeration grit chamber, a sewage outlet pipe, a bridge type sand sucker and a Roots blower, wherein the water inlet pipe, the pore plate stepped grid, the aeration grit chamber and the sewage outlet pipe are sequentially connected, the bridge type sand sucker is connected with the aeration grit chamber, and the Roots blower is connected with the aeration grit chamber.
In the system, the five-segment AAO subsystem comprises:
the system comprises a water inlet, a water distribution channel, a pre-anoxic zone, an anaerobic zone, a primary anoxic zone, a primary aerobic zone, a secondary anoxic zone, a secondary aerobic zone, an aeration device, a sludge return pipe, an air inlet, an air suspension blower, a water outlet, a mixed liquid return pump and a mixed liquid return pipe; wherein the content of the first and second substances,
the water inlet is connected with the water distribution channel, and the water distribution channel is respectively provided with four water outlet points which are respectively connected with the pre-anoxic zone, the anaerobic zone, the front section and the middle section of the primary anoxic zone;
the pre-anoxic zone is sequentially connected with the anaerobic zone, the primary anoxic zone, the primary aerobic zone, the secondary anoxic zone and the secondary aerobic zone, and a water outlet is formed in the rear end of the secondary aerobic zone;
aeration devices are arranged in the primary aerobic zone, the secondary anoxic zone and the secondary aerobic zone and are connected with the air suspension blower through the air inlet;
the middle section of the second-stage anoxic zone is provided with a mixed liquid reflux pump which is connected to the water inlet of the first-stage anoxic zone through the mixed liquid reflux pipe;
the bottom of the pre-anoxic zone is connected with the sludge return pipe, and the sludge return pipe is connected with a sludge return pump which is circumferentially arranged in the secondary sedimentation tank.
In the system, the system of the cycle-in cycle-out secondary sedimentation tank comprises:
a water inlet, a tank body, a single-pipe suction dredge, a mud outlet and a water outlet; wherein the content of the first and second substances,
the water inlet is arranged at the front end of the tank body, and the water outlet is arranged at the rear end of the tank body;
the sludge outlet is arranged at the bottom of the tank body and is connected with the single-pipe sludge suction machine. The single-pipe suction dredge is connected with a sludge dewatering system, and particularly connected with a sludge storage pool of the sludge dewatering system.
In the system, the circulating and discharging secondary sedimentation tank further comprises:
a return sludge pump and a residual sludge pump;
the sludge inlet of the return sludge pump is connected with the single-pipe suction dredge, and the sludge outlet of the return sludge pump is connected with the sludge return pipe of the five-section AAO subsystem; preferably, the return sludge pump is arranged in the sludge pump station and is connected with a sludge return pipe at the bottom of the pre-anoxic zone of the five-section AAO subsystem;
and a sludge inlet of the excess sludge pump is connected with the single-pipe suction dredge, and a sludge outlet of the excess sludge pump is connected with the sludge dewatering subsystem. Preferably, the excess sludge pump is arranged in the sludge pump station and is connected with the sludge storage tank of the sludge dewatering subsystem.
In the system, the magnetic coagulation sedimentation subsystem comprises:
the system comprises a magnetic coagulation sedimentation tank, a mixing stirrer, a flocculation stirrer, a sludge concentrator, a magnetic powder adding device, a medicine adding device, a magnetic separation device, an excess sludge pump and a sludge reflux pump; wherein the content of the first and second substances,
the magnetic coagulation sedimentation tank is internally provided with a mixing area, a magnetic powder reaction area, a flocculation area and an inclined tube sedimentation area in sequence, wherein the front end of the mixing area is provided with a water inlet, the rear end of the inclined tube sedimentation area is provided with a water outlet, and the bottom of the inclined tube sedimentation area is provided with a sludge port;
the mixing stirrer is arranged in the mixing zone, the flocculation stirrer is arranged in the flocculation zone, and the sludge thickener is arranged in the inclined tube settling zone;
the dosing device is respectively connected with the mixing region and the flocculation region of the magnetic coagulation sedimentation tank;
the magnetic powder adding equipment is connected with the magnetic powder reaction zone of the magnetic coagulation sedimentation tank;
the sludge port of the inclined tube settling zone is connected with the magnetic separation equipment through the excess sludge pump;
and a sludge port of the inclined tube settling zone is connected back to the magnetic powder reaction zone through a sludge reflux pump and a pipeline.
In the system, the ozone contact oxidation subsystem comprises: the ozone contact oxidation pond that is equipped with water inlet and delivery port respectively, ozone preparation facilities through the diffuser with connect in the ozone contact oxidation pond, tail gas destruction device with the ozone contact oxidation pond is connected.
The system in, be equipped with the activated carbon tank of water inlet and delivery port respectively, water distribution equipment with the water inlet is connected, filter material filtration equipment sets up in the activated carbon tank, back flush equipment with filter material filtration equipment is connected.
The contact sterilization subsystem includes: a contact disinfection tank which is respectively provided with a water inlet and the standard water outlet, and the disinfectant preparation is connected with the contact disinfection tank.
The embodiments of the present invention will be described in further detail below.
The embodiment of the utility model provides a town sewage treatment system of three types of standard of surface standard up to standard, see figure 1, this system specifically includes: the system comprises a coarse grating and lifting subsystem, a fine grating and aeration sand setting subsystem, a five-section AAO subsystem, a perimeter-in and perimeter-out secondary sedimentation tank subsystem, a magnetic coagulation sedimentation subsystem, an ozone contact oxidation subsystem, a homogeneous filter material filtering subsystem and a contact disinfection subsystem; further, the processing system further comprises: and the sludge dewatering subsystem is connected with the sludge outlets of the circum-inlet and peri-outlet secondary sedimentation tank subsystem and the magnetic coagulation sedimentation subsystem.
The coarse grating and lifting subsystem consists of a water inlet, a steel wire rope type coarse grating, a submersible sewage pump and an outlet, and grating slag intercepted by the coarse grating is collected and transported outwards.
The fine grid and aeration sand setting subsystem consists of a water inlet, an orifice plate stepped grid, a bridge type sand sucker, a Roots blower and an outlet, grid slag intercepted by the fine grid is collected and transported outwards, and sand discharged by the sand sucker is discharged outwards after passing through a sand washing system.
The five-segment AAO subsystem comprises: the system comprises a water inlet, a water distribution channel, a pre-anoxic zone, an anaerobic zone, a primary anoxic zone, a primary aerobic zone, a secondary anoxic zone, a secondary aerobic zone, an aeration device, a sludge return pipe, an air inlet, an air suspension blower, a water outlet, a mixed liquid return pump and a mixed liquid return pipe; wherein the content of the first and second substances,
the water inlet is connected with the water distribution channel, and the water distribution channel is respectively provided with four water outlet points which are respectively connected with the pre-anoxic zone, the anaerobic zone, the front section and the middle section of the primary anoxic zone;
the pre-anoxic zone is sequentially connected with the anaerobic zone, the primary anoxic zone, the primary aerobic zone, the secondary anoxic zone and the secondary aerobic zone, and a water outlet is formed in the rear end of the secondary aerobic zone;
aeration devices are arranged in the primary aerobic zone, the secondary anoxic zone and the secondary aerobic zone and are connected with the air suspension blower through the air inlet; providing dissolved oxygen to the subsystem;
the middle section of the second-stage anoxic zone is provided with a mixed liquid reflux pump which is connected to the water inlet of the first-stage anoxic zone through the mixed liquid reflux pipe;
the bottom of the pre-anoxic zone is connected with the sludge return pipe, and the sludge return pipe is connected with a sludge return pump which is circumferentially arranged in the secondary sedimentation tank.
The system comprises a peripheral inlet and outlet secondary sedimentation tank subsystem and a sludge dewatering subsystem, wherein the peripheral inlet and outlet secondary sedimentation tank subsystem comprises a water inlet, a sludge outlet and a water outlet which are arranged on the tank body, the sludge outlet is connected with a sludge pump pit through a single-pipe suction dredge, a return sludge pump in the pump pit returns sludge to a pre-anoxic zone of the five-section AAO subsystem, and a residual sludge pump in the pump pit conveys sludge to the sludge dewatering subsystem.
The magnetic coagulation sedimentation subsystem comprises: the system comprises a magnetic coagulation sedimentation tank, a water inlet, a mixing stirrer, a flocculation stirrer, a sludge thickener, a magnetic powder adding device, magnetic separation equipment, a medicine adding device, an excess sludge pump, a sludge reflux pump and a water outlet.
The ozone contact oxidation subsystem comprises: the ozone contact oxidation pond that is equipped with water inlet and delivery port respectively, ozone preparation facilities through the diffuser with connect in the ozone contact oxidation pond, tail gas destruction device with the ozone contact oxidation pond is connected.
The homogeneous filter material filtration subsystem comprises: the water distribution equipment is connected with the water inlet, the filter material filtering equipment is arranged in the activated carbon tank, and the backwashing equipment is connected with the filter material filtering equipment.
The contact sterilization subsystem includes: a contact disinfection tank which is respectively provided with a water inlet and the standard water outlet, and the disinfectant preparation is connected with the contact disinfection tank.
After the urban sewage is treated by the system, the effluent can reach three standard types (wherein TN is less than or equal to 10 mg/L).
The embodiment of the utility model provides a still provide a town sewage treatment method of accurate three types of water of surface of earth up to standard, adopt foretell processing system to handle, concrete step is as follows:
the coarse grating and the lifting subsystem are provided with a steel wire rope type coarse grating for intercepting larger solids in sewage, the grating gap of the grating is 15-20 mm, the sewage enters a lifting pump station after passing through the coarse grating, and a submersible lifting pump is arranged in the pump station and lifts the sewage to the fine grating and the aeration sand settling subsystem; the fine grid channel is provided with a hole plate step grid for further intercepting total solid matters in the sewage and reducing the pressure of a unit for subsequent treatment; after passing through a fine grid, the sewage enters an aeration grit chamber, and inorganic particles in the sewage are removed in the aeration grit chamber; the effluent of the aeration grit chamber enters a five-section AAO subsystem, and 4 water inlet points are arranged in the five-section AAO subsystem and respectively comprise a pre-anoxic zone, an anaerobic zone, a front section of a primary anoxic zone and a middle section of the primary anoxic zone. According to the water inlet characteristics, the water inlet point water quantity of the points can be flexibly adjusted, and the removal of various pollutants is ensured. The five-section AAO subsystem is provided with a mixed liquid reflux pump at the middle section of the second-stage anoxic zone, and the mixed liquid is refluxed to the water inlet of the first-stage anoxic zone; the residence time of each subarea of the five-section AAO is as follows, the pre-anoxic zone is 0.5-1 h, the anaerobic zone is 1-1.5 h, the first-stage anoxic zone is calculated according to the intake TN value, the first-stage aerobic zone is calculated according to the intake pollutant concentration, the second-stage anoxic zone is 2-4 h, and the second-stage aerobic zone is 0.5-1.5 h. Effluent of the five-section AAO subsystem enters the all-in all-out secondary sedimentation tank subsystem, sludge-water separation of mixed liquor is completed in a tank body of the all-in all-out secondary sedimentation tank subsystem, supernatant is discharged through a water outlet of the tank body, sludge at the bottom enters a sludge pump pit after passing through a single-pipe suction dredge, partial sludge flows back to an anaerobic tank of the five-section AAO subsystem through a sludge reflux pump, and residual sludge is pumped to the sludge dewatering subsystem through a residual sludge pump. The effluent from the secondary sedimentation tank subsystem enters a magnetic coagulation sedimentation tank of the magnetic coagulation sedimentation subsystem through the periphery, a coagulant is provided by a dosing device in the magnetic coagulation sedimentation tank and is added to a mixing region and a flocculation region of the magnetic coagulation sedimentation tank, magnetic powder is provided for the magnetic coagulation sedimentation tank by a magnetic powder adding device, sewage, a coagulant, a flocculant and magnetic powder are fully mixed and then enter an inclined tube sedimentation region of the magnetic coagulation sedimentation tank for mud-water separation, supernatant is discharged from a water outlet of the magnetic coagulation sedimentation tank, the bottom sludge part flows back to a magnetic powder reaction region of the magnetic coagulation sedimentation tank through a sludge reflux pump, the residual sludge is pumped to a magnetic separation device by a residual sludge pump, and the separated sludge is discharged to a sludge dewatering subsystem. The effluent of the magnetic coagulation sedimentation tank enters an ozone contact oxidation subsystem, sewage is fully reacted with ozone in the ozone contact oxidation subsystem and then discharged through a water outlet, and an ozone preparation device provides ozone for the ozone contact oxidation subsystem. Sewage enters an activated carbon tank serving as a homogeneous filter material filtering subsystem, enters a filter material filtering device after passing through a water distribution device, is discharged through a water outlet, enters a contact disinfection tank subsystem, and is supplied with disinfectant by a disinfectant preparation device in a contact disinfection tank of the contact disinfection tank subsystem, so that the biological indexes of the sewage are discharged up to the standard. After the treatment, the town sewage reaches the standard of the ground surface and is discharged according to the standard of three (wherein TN is less than or equal to 10 mg/L).
The above description is only for the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are all covered by the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. The utility model provides a town sewage treatment system of three kinds of water on up to standard earth's surface which characterized in that includes:
the system comprises a coarse grid lifting subsystem, a fine grid aeration sand setting subsystem, a five-section AAO subsystem, a perimeter-in perimeter-out secondary sedimentation tank subsystem, a magnetic coagulation sedimentation subsystem, an ozone contact oxidation subsystem, a homogeneous filter material filtering subsystem and a contact disinfection subsystem; wherein the content of the first and second substances,
the coarse grid lifting subsystem is provided with a sewage inlet pipe and a sewage outlet pipe, and the sewage outlet pipe is sequentially connected with the fine grid aeration sand setting subsystem, the five-section AAO subsystem, the peripheral inlet and outlet secondary sedimentation tank subsystem and the magnetic coagulation sedimentation subsystem;
the magnetic coagulation sedimentation subsystem is respectively provided with a sludge outlet and a sewage outlet, and the sewage outlet is sequentially connected with the ozone contact oxidation subsystem, the homogeneous filter material filtering subsystem and the contact disinfection subsystem;
the contact disinfection subsystem is provided with a standard water outlet.
2. The town sewage treatment system according to claim 1, further comprising: and the sludge dewatering subsystem is connected with the sludge outlets of the circum-inlet and peri-outlet secondary sedimentation tank subsystem and the magnetic coagulation sedimentation subsystem.
3. The town sewage treatment system according to claim 1 or 2, wherein the coarse grid lifting unit consists of the sewage inlet pipe, the wire rope type coarse grid, the submersible sewage pump and the outlet which are connected in sequence.
4. The town sewage treatment system according to claim 1 or 2, wherein the fine grid aeration grit settling subsystem comprises a water inlet pipe, a pore plate stepped grid, an aeration grit chamber, the sewage outlet pipe, a bridge type sand sucker and a Roots blower, wherein the water inlet pipe, the pore plate stepped grid, the aeration grit chamber and the sewage outlet pipe are sequentially connected, the bridge type sand sucker is connected with the aeration grit chamber, and the Roots blower is connected with the aeration grit chamber.
5. The town sewage treatment system according to claim 1 or 2, wherein the five-stage AAO subsystem comprises:
the system comprises a water inlet, a water distribution channel, a pre-anoxic zone, an anaerobic zone, a primary anoxic zone, a primary aerobic zone, a secondary anoxic zone, a secondary aerobic zone, an aeration device, a sludge return pipe, an air inlet, an air suspension blower, a water outlet, a mixed liquid return pump and a mixed liquid return pipe; wherein the content of the first and second substances,
the water inlet is connected with the water distribution channel, and the water distribution channel is respectively provided with four water outlet points which are respectively connected with the pre-anoxic zone, the anaerobic zone, the front section and the middle section of the primary anoxic zone;
the pre-anoxic zone is sequentially connected with the anaerobic zone, the primary anoxic zone, the primary aerobic zone, the secondary anoxic zone and the secondary aerobic zone, and a water outlet is formed in the rear end of the secondary aerobic zone;
aeration devices are arranged in the primary aerobic zone, the secondary anoxic zone and the secondary aerobic zone and are connected with the air suspension blower through the air inlet;
the middle section of the second-stage anoxic zone is provided with a mixed liquid reflux pump which is connected to the water inlet of the first-stage anoxic zone through the mixed liquid reflux pipe;
the bottom of the pre-anoxic zone is connected with the sludge return pipe, and the sludge return pipe is connected with a sludge return pump which is circumferentially arranged in the secondary sedimentation tank.
6. The town sewage treatment system according to claim 1 or 2 wherein said weekly in and out secondary sedimentation tank subsystem comprises:
a water inlet, a tank body, a single-pipe suction dredge, a mud outlet and a water outlet; wherein the content of the first and second substances,
the water inlet is arranged at the front end of the tank body, and the water outlet is arranged at the rear end of the tank body;
the sludge outlet is arranged at the bottom of the tank body and is connected with the single-pipe sludge suction machine.
7. The town sewage treatment system according to claim 6 wherein said perimeter to perimeter secondary sedimentation tank further comprises:
a return sludge pump and a residual sludge pump; wherein the content of the first and second substances,
a sludge inlet of the return sludge pump is connected with the single-pipe suction dredge, and a sludge outlet of the return sludge pump is connected with a sludge return pipe of the five-section AAO subsystem;
and a sludge inlet of the excess sludge pump is connected with the single-pipe suction dredge, and a sludge outlet of the excess sludge pump is connected with the sludge dewatering subsystem.
8. The town sewage treatment system according to claim 1 or 2, wherein the magnetic coagulation sedimentation subsystem comprises:
the system comprises a magnetic coagulation sedimentation tank, a mixing stirrer, a flocculation stirrer, a sludge concentrator, a magnetic powder adding device, a medicine adding device, a magnetic separation device, an excess sludge pump and a sludge reflux pump; wherein the content of the first and second substances,
the front end of the magnetic coagulation sedimentation tank is provided with
The magnetic coagulation sedimentation tank is internally provided with a mixing area, a magnetic powder reaction area, a flocculation area and an inclined tube sedimentation area in sequence, wherein the front end of the mixing area is provided with a water inlet, the rear end of the inclined tube sedimentation area is provided with a water outlet, and the bottom of the inclined tube sedimentation area is provided with a sludge port;
the mixing stirrer is arranged in the mixing zone, the flocculation stirrer is arranged in the flocculation zone, and the sludge thickener is arranged in the inclined tube settling zone;
the dosing device is respectively connected with the mixing region and the flocculation region of the magnetic coagulation sedimentation tank;
the magnetic powder adding equipment is connected with the magnetic powder reaction zone of the magnetic coagulation sedimentation tank;
the sludge port of the inclined tube settling zone is connected with the magnetic separation equipment through the excess sludge pump;
and a sludge port of the inclined tube settling zone is connected back to the magnetic powder reaction zone through a sludge reflux pump and a pipeline.
9. The town sewage treatment system according to claim 1 or 2, wherein the ozone contact oxidation subsystem comprises:
an ozone contact oxidation pond and an ozone preparation device; wherein the content of the first and second substances,
the ozone preparation device is connected with the ozone contact oxidation tank.
10. The town sewage treatment system according to claim 1 or 2, wherein the homogeneous filter material filtering subsystem comprises:
the water distribution equipment is connected with the water inlet, the filter material filtering equipment is arranged in the activated carbon tank, and the backwashing equipment is connected with the filter material filtering equipment;
the contact sterilization subsystem includes:
a contact disinfection pool which is respectively provided with a water inlet and the standard water outlet, and a disinfectant preparation device is connected with the contact disinfection pool.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021009918.XU CN212559864U (en) | 2020-06-04 | 2020-06-04 | Town sewage treatment system of three kinds of water of surface of earth up to standard |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021009918.XU CN212559864U (en) | 2020-06-04 | 2020-06-04 | Town sewage treatment system of three kinds of water of surface of earth up to standard |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212559864U true CN212559864U (en) | 2021-02-19 |
Family
ID=74638127
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021009918.XU Active CN212559864U (en) | 2020-06-04 | 2020-06-04 | Town sewage treatment system of three kinds of water of surface of earth up to standard |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212559864U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113735378A (en) * | 2021-09-15 | 2021-12-03 | 北控(秦皇岛)水务有限责任公司 | Nitrogen and phosphorus removal sewage treatment system and treatment method |
-
2020
- 2020-06-04 CN CN202021009918.XU patent/CN212559864U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113735378A (en) * | 2021-09-15 | 2021-12-03 | 北控(秦皇岛)水务有限责任公司 | Nitrogen and phosphorus removal sewage treatment system and treatment method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102775025A (en) | Municipal life wastewater treatment system with high efficiency and low energy consumption | |
| CN102515446B (en) | BCM (Biology Cilium Magnetic) biological sewage treatment system and BCM biological sewage treatment process | |
| CN211770842U (en) | Small-town sewage treatment system capable of achieving four types of ground surface levels | |
| CN114590969B (en) | Livestock and poultry breeding wastewater treatment system | |
| CN209797712U (en) | Medium-high concentration comprehensive sewage nitrogen and phosphorus removal treatment system | |
| CN205892995U (en) | Medicine effluent disposal system | |
| CN101898847B (en) | System for treating sewage containing nonylphenol polyoxyethylene ether and metabolin | |
| CN101659502A (en) | Method for treating waste leachate by utilizing high denitrification shared type Orbal oxidation ditch | |
| CN212559864U (en) | Town sewage treatment system of three kinds of water of surface of earth up to standard | |
| CN116835824A (en) | Comprehensive sewage treatment system based on surface quasi-four water standards | |
| CN111573994A (en) | Town sewage treatment system of three kinds of water of surface of earth up to standard | |
| CN205347124U (en) | City river drain sewage treatment device | |
| CN107200431A (en) | A kind of Pig raising wastewater deep treatment method | |
| CN106630422A (en) | Wastewater biological treatment device for polyether polyol production | |
| CN206204118U (en) | For the processing system of black and odorous water | |
| CN206337122U (en) | Polyetherpolyols production wastewater biological treatment device | |
| CN109896706A (en) | A kind of sewage water advanced treatment apparatus | |
| CN103508557B (en) | Active sludge bed reaction treatment method and device | |
| CN109851160A (en) | A kind of advanced treatment method for sewage water | |
| CN105084662B (en) | A kind of Treated sewage reusing processing method | |
| CN211056911U (en) | Sewage nitrogen and phosphorus removal integrated treatment system | |
| CN209322672U (en) | A kind of Sewage Disposal suitable for vegetable cultivation base the dirty water decontamination handles | |
| CN110540348B (en) | High-efficiency sewage nitrogen and phosphorus removal treatment process and equipment | |
| CN209759276U (en) | Landfill leachate treatment system | |
| CN209537215U (en) | A kind of efficient process system of pharmaceutical industry production of raw medicine organic wastewater |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |