CN215249863U - Split buried membrane bioreactor - Google Patents
Split buried membrane bioreactor Download PDFInfo
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- CN215249863U CN215249863U CN202121516310.0U CN202121516310U CN215249863U CN 215249863 U CN215249863 U CN 215249863U CN 202121516310 U CN202121516310 U CN 202121516310U CN 215249863 U CN215249863 U CN 215249863U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/10—Biological treatment of water, waste water, or sewage
Abstract
The utility model relates to a bury formula membrane bioreactor with components of a whole that can function independently, including the reaction main part, the reaction main part is buried underground, the reaction main part has two, is first reaction main part and second reaction main part respectively, first reaction main part is including the anoxic zone and the anaerobic zone that connect gradually, the second reaction main part is including the aerobic zone and the MBR district that connect gradually, and this MBR district is inside to be provided with the MBR membrane module, the inside of first reaction main part and second reaction main part all is provided with aeration equipment, and this first reaction main part and second reaction main part pass through the pipe connection. The utility model improves the efficiency of integral denitrification and dephosphorization by the anoxic-anaerobic-aerobic-MBR process; the air stripping device is adopted for sludge backflow and sludge discharge, so that the energy consumption of equipment is reduced, and the operation cost is saved; the method of combining the split type and the underground is adopted, so that the installation and operation problems of the area with lower temperature are further solved.
Description
Technical Field
The utility model relates to a split buried membrane bioreactor for treating domestic sewage.
Background
At present, the environmental pollution of villages and towns in China is aggravated, and a large amount of domestic sewage is directly discharged into natural water, so that the ecological damage of partial areas is serious, the function of an ecological system is degraded, and the ecological environment is fragile.
Rural domestic sewage has the characteristics of dispersed discharge, small total sewage flow, large water quality and flow fluctuation, high concentration of nutritional pollutants in sewage and the like, and the water treatment equipment with dispersed type, low cost and easy maintenance is particularly suitable for the dispersed domestic sewage treatment.
The anoxic-anaerobic-aerobic process is the most common process in domestic sewage treatment, has better denitrification capability, and also has the defects of poor impact resistance and high residual sludge yield; the Membrane Biological (MBR) process has the advantages of strong impact resistance, high sludge concentration and low sludge yield, and the advantages of the two processes can be comprehensively exerted by connecting the anoxic-anaerobic-aerobic and MBR biological processes in series. China is vast, the temperature is lower than zero in northern areas in winter, the icing condition can occur, and the activity of activated sludge can be influenced due to too low temperature, so that the equipment operation is abnormal.
SUMMERY OF THE UTILITY MODEL
The utility model discloses a solve northern area because the unusual problem of operation appears after temperature reduces, on the basis of the rural domestic sewage treatment equipment of current integration, provide a formula membrane bioreactor buries in components of a whole that can function independently, adopt split type structure, conveniently arrange under rural different place situations, can guarantee that equipment temperature is low the area also can steady operation, carry out stable nitrogen and phosphorus removal to rural sewage.
In order to solve the above problem, the utility model adopts the following technical scheme:
the utility model provides a formula membrane bioreactor buries with components of a whole that can function independently, includes the reaction main part, the reaction main part is buried underground in the ground, the reaction main part has two, is first reaction main part and second reaction main part respectively, first reaction main part is including the anoxic zone and the anaerobic zone that connect gradually, the second reaction main part is including the aerobic zone and the MBR district that connect gradually, and this MBR district is inside to be provided with the MBR membrane module, the inside of first reaction main part and second reaction main part all is provided with aeration equipment, and this first reaction main part and second reaction main part pass through the pipe connection.
Furthermore, a first operation space is arranged above the first reaction body, and a second operation space is arranged above the second reaction body.
Further, aeration equipment includes air pump, agitating unit, pipeline, the air pump is fixed to be set up in first operating space, agitating unit has a plurality ofly, sets up respectively in the bottom in anoxic zone, anaerobic zone, good oxygen district, MBR district, and this agitating unit passes through the pipe connection with the air pump.
Further, the MBR area still includes product water pump, backwash water tank, backwash water pump, and this product water pump, backwash water tank, backwash water pump all install in second operating space, MBR membrane module, product water pump, backwash water tank, backwash water pump form the return circuit through the pipeline and connect.
Furthermore, a backwashing medicine box is further arranged on the second operation space, and the backwashing medicine box, the backwashing water pump and the MBR membrane module are sequentially connected through a pipeline.
Furthermore, the water production pump and the backwashing water pump are both provided with a time control device, and the backwashing water tank and the water outlet pipeline of the backwashing medicine box are both provided with an electromagnetic valve.
Further, the MBR area still includes mud backward flow discharging equipment, mud backward flow discharging equipment includes mud pipe, mud back flow, mud backward flow air supply pipe, the one end and the air pump of mud backward flow air supply pipe are connected, and the other end is connected with the mud back flow, the one end and the mud back flow of mud pipe are connected, the solenoid valve is all installed to mud back flow, mud discharge pipe, mud backward flow air supply pipe.
Furthermore, the tops of the first reaction main body and the second reaction main body are provided with access holes, and the top of the first reaction main body is also provided with an exhaust pipe.
Furthermore, an electric cabinet is further arranged on the first operation space, and the electric cabinet is electrically connected with the electromagnetic valve, the air pump and the time control device respectively.
The utility model improves the efficiency of integral denitrification and dephosphorization by setting the complete anoxic-anaerobic-aerobic-MBR process; the air stripping device is adopted for sludge backflow and sludge discharge, so that the energy consumption of equipment can be reduced, and the operation cost is saved; the automatic operation of each process unit is realized by adopting an automatic control system, so that the operation process is facilitated; the split and buried mode is adopted, so that the installation and operation problems of areas with low air temperature are further solved.
Compared with the prior art, the technical scheme of the utility model, there are following beneficial effect:
1. the utility model discloses a bury formula installation, water treatment main part reaction unit installs below frozen soil layer, can guarantee the inside temperature of reaction main part, and then guarantee that equipment also can normal operating in the lower area of temperature winter, through the utility model discloses the play water after the processing can stably reach "urban sewage treatment plant pollutant emission standard" one-level A standard.
2. The utility model adopts the air stripping technology to carry out the backflow and the discharge of the sludge, replaces a sludge backflow pump and a sludge discharge pump in the traditional water treatment system, and effectively reduces the energy consumption of the system; the gas circuit is controlled to be opened and closed through the electromagnetic valve, the size is adjusted through the valve, the failure rate of the equipment is reduced, the operation cost is reduced, and meanwhile, the stability of the system equipment is improved.
3. The utility model discloses a time control device establishes opening of customized product water pump and backwash water pump and stops the time, all is equipped with the solenoid valve on the outlet pipe of backwash water tank and backwash medical kit, sets up and opens two solenoid valves in order to realize the automatic backwash to the MBR membrane module before the backwash.
4. The utility model discloses the first and second operation space that set up can be with electric cabinet, air pump, pipeline, backwash water tank, backwash medical kit, product water pump and backwash water pump etc. centralized installation in operation space, save space.
Drawings
Fig. 1 is an overall plan view of the present invention;
fig. 2 is a side view of the first reaction body of the present invention;
fig. 3 is a side view of a second reaction body according to the present invention.
In the figure, 100-a first reaction body, 101-an anoxic zone, 102-an anaerobic zone, 103-a first operation space, 104-a water inlet pipe, 105-a water through pipe, 106-an air pump, 107-an anoxic zone stirring pipeline, 108-an anaerobic zone stirring pipeline, 109-a first reaction body access hole, 110-an electric cabinet, 111-an anoxic zone stirring device, 112-an anaerobic zone stirring device, 113-a sludge return pipe, 114-an exhaust pipe, 200-a second reaction body, 201-an aerobic zone, 202-an MBR zone, 203-an MBR membrane module, 204-a second operation space, 205-a water production pump, 206-a backwashing water tank, 207-a water outlet pipe, 208-a backwashing water pump, 209-a backwashing medicine box, 210-an aerobic zone oxygenation pipeline, 211-an MBR zone oxygenation pipeline, 212-an aerobic zone oxygenation device, 213-an MBR zone oxygenation device, 214-a sludge backflow air supply pipeline, 215-a connecting sleeve, 216-a sludge discharge pipe and 217-a second reaction main body access hole.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail below with reference to the accompanying drawings and by referring to preferred embodiments. It should be understood, however, that the numerous specific details set forth in the specification are merely set forth to provide a thorough understanding of one or more aspects of the present invention, which may be practiced without these specific details.
In order to make the technical field of the present invention better understand, the present invention will be described in detail with reference to the accompanying drawings and the detailed description.
As shown in fig. 1 to 3, a split buried membrane bioreactor comprises two reaction main bodies, wherein the two reaction main bodies are buried under the ground, the two reaction main bodies are respectively a first reaction main body 100 and a second reaction main body 200, the first reaction main body 100 comprises an anoxic zone 101 and an anaerobic zone 102 which are sequentially connected, the second reaction main body 200 comprises an aerobic zone 201 and an MBR zone 202 which are sequentially connected, an MBR membrane module 203 is arranged in the MBR zone 202, aeration devices are arranged in the first reaction main body 100 and the second reaction main body 200, and the first reaction main body 100 and the second reaction main body 200 are connected through a pipeline.
A water inlet pipe 104 is arranged on one side of the anoxic zone 101, which is far away from the anaerobic zone 102, the tail end of the anaerobic zone 102 is connected with the front end of the aerobic zone 201 through a water passing pipe 105, the anoxic zone 101 is connected with the MBR zone 202 through a sludge return pipe 113, sewage enters the anoxic zone 101 of the first reaction main body 100 through the water inlet pipe 104, flows from bottom to top in the anoxic zone 101, overflows to the anaerobic zone 102, then flows into the aerobic zone 201 through the water passing pipe 105, and overflows to the MBR zone 202 from the top of the aerobic zone 201.
The first operation space 103 is provided above the first reaction body 100, and the second operation space 204 is provided above the second reaction body 200.
The aeration device comprises an air pump 106, a plurality of stirring devices and pipelines, wherein the air pump 106 is fixedly arranged in the first operation space 103, the plurality of stirring devices are respectively arranged at the bottoms of the anoxic zone 101, the anaerobic zone 102, the aerobic zone 201 and the MBR zone 202, and the stirring devices are connected with the air pump 106 through the pipelines.
The stirring device comprises an anoxic zone stirring device 111, an anaerobic zone stirring device 112, an aerobic zone oxygenation device 212 and an MBR zone oxygenation device 213, the pipelines comprise an anoxic zone stirring pipeline 107, an anaerobic zone stirring pipeline 108, an aerobic zone oxygenation pipeline 210 and an MBR zone oxygenation pipeline 211, electromagnetic valves are arranged on the pipelines, the anoxic zone stirring device 111 is connected with an air pump 106 through the anoxic zone stirring pipeline 107, the anaerobic zone stirring device 112 is connected with the air pump 106 through the anaerobic zone stirring pipeline 108, the aerobic zone oxygenation device 212 is connected with the air pump 106 through the aerobic zone oxygenation pipeline 210, the MBR zone oxygenation device 213 is connected with the air pump 106 through the MBR zone oxygenation pipeline 211, the air supply quantity is adjusted through the electromagnetic valves (not shown in the figure) arranged on the pipelines, so that the anaerobic zone and the anoxic zone can not generate sludge accumulation in the operation process, and the dissolved oxygen in the anoxic zone is controlled to be between 0.2 and 0.5mg/L, the dissolved oxygen in the anaerobic zone is less than 0.2mg/L, the dissolved oxygen in the aerobic zone is between 2 and 4mg/L, and the dissolved oxygen in the MBR zone is between 4 and 5 mg/L.
The MBR area 202 further comprises a water production pump 205, a backwashing water tank 206 and a backwashing water pump 208, wherein the water production pump 205, the backwashing water tank 206 and the backwashing water pump 208 are all installed in a second operation space, the MBR membrane module 203, the water production pump 205, the backwashing water tank 206 and the backwashing water pump 208 form loop connection through pipelines, a water production port (not shown) of the MBR membrane module 203 is connected with the water production pump 205 through a pipeline, the water production pump 205 and the MBR membrane module 203 jointly act to separate sewage from sludge, then the sewage treated by the MBR membrane module 203 enters the backwashing water tank 206 from the bottom under the action of the water production pump 205, part of the water entering the backwashing water tank 206 is discharged through a water outlet pipe 207 arranged at the upper part of the backwashing water tank, and the other part of the water is pumped into the MBR membrane module 203 again through the backwashing water pump 208 to perform backwashing operation, so that loop connection is formed.
And a backwashing medicine box 209 is also arranged on the second operating space, and the backwashing medicine box 209, the backwashing water pump 208 and the MBR membrane module 203 are sequentially connected through a pipeline and used for pumping an additive for treating sewage into the MBR membrane module 203 to participate in relevant work.
The water production pump 205 and the backwashing water pump 208 are both provided with a time control device, the water outlet pipes of the backwashing water tank 206 and the backwashing medicine tank 209 are both provided with electromagnetic valves, and the two electromagnetic valves can be set to be opened before backwashing so as to realize automatic backwashing. The water producing pump and the backwashing pump are both provided with time control devices, and the time of water production and backwashing can be set.
The MBR area 202 further includes a sludge backflow discharging device, the sludge backflow discharging device includes a sludge discharging pipe 216, a sludge backflow pipe 113, and a sludge backflow air supply pipe 214, one end of the sludge backflow air supply pipe 214 is connected with the air pump 106, the other end is connected with the sludge backflow pipe 113, one end of the sludge discharging pipe 216 is connected with the sludge backflow pipe, and the residual sludge is discharged out of the reaction main body through the sludge discharging pipe 216. The sludge return pipe 113 and the sludge discharge pipe 216 are both provided with electromagnetic valves (not shown in the figure), and the electromagnetic valves can be arranged to adjust the sludge discharge and the return. The air pump 106 sends air into the sludge reflux air supply pipe 214, and the sludge in the MBR area 202 flows back to the front end of the anoxic area 101 through the sludge reflux pipe 113 by the air stripping principle, wherein the sludge reflux ratio is 50-100%. The sludge return pipe 113 is connected to a sludge discharge pipe 216, and the opening and closing of the sludge discharge pipe 216 can be controlled by an electromagnetic valve (not shown in the figure) to periodically discharge excess sludge.
The surfaces of the sludge return pipe 113, the aerobic zone oxygen increasing pipeline 210, the MBR zone oxygen increasing pipeline 211 and the sludge return air supply pipeline 214 are all sleeved with connecting sleeves 215.
The top of the first reaction main body 100 and the second reaction main body 200 are both provided with access holes, so that the internal operation condition of the equipment can be conveniently observed at the initial stage of equipment installation, the follow-up maintenance is also convenient, and the top of the first reaction main body is also provided with an exhaust pipe 114.
The first operating space 103 is further provided with an electric cabinet 110, and the electric cabinet is electrically connected with the electromagnetic valve, the air pump 106 and the time control device respectively.
Time control unit (not shown in the figure) comprises time relay (not shown in the figure) and solenoid valve (not shown in the figure), and this time relay installs in electric cabinet 110, and the solenoid valve is installed on near the gas pipe way of electric cabinet 110, and the electricity is connected between time relay and the solenoid valve, and both combined action form the utility model discloses a time control unit.
When the utility model is used, sewage is firstly treated primarily in the adjusting tank, passes through the grating and enters the anoxic zone 101 of the first reaction main body 100 through the water inlet pipe 104, the wastewater flows from bottom to top in the anoxic zone 101, overflows to the anaerobic zone 102, then flows into the aerobic zone 201 through a water pipe 105, overflows to the MBR zone 202 from the top of the aerobic zone 201, an MBR membrane module 203 is arranged in the MBR zone 202, a water production port (not shown) of the MBR membrane module 203 is connected with a water production pump 205 through a pipeline, the water production pump 205 and the MBR membrane module 203 jointly act to separate the wastewater from sludge, then the wastewater treated by the MBR membrane module 203 enters a backwash water tank 206 from the bottom under the action of the water production pump 205, one part of the water entering the backwash water tank 206 is discharged through a water outlet pipe 207 arranged at the upper part of the backwash water tank, and the other part of the water is pumped into the MBR membrane module 203 again through the backwash water pump 208 to carry out backwash work; meanwhile, partial sludge in the MBR area 202 flows back to the anoxic area through a sludge return pipe through a gas stripping technology.
The application case is as follows: a set of 300m is built in rural living villages and towns in a certain north3The project design water inlet and outlet indexes of the sewage treatment demonstration project of/d are as follows:
| index (I) | COD(mg/L) | TN(mg/L) | NH3-N(mg/L) | TP(mg/L) | SS(mg/L) |
| Inflow water | 300 | 50 | 40 | 5 | 80 |
| Discharging water | ≤50 | ≤10 | ≤5 | ≤0.5 | ≤10 |
The process flow is briefly described as follows: installing a grid in an original domestic sewage ditch, and then building a regulating tank with a proper size. Be provided with the ultrasonic wave level gauge in the equalizing basin, after the water level rose to a take the altitude, the water pump start-up in the pond extremely with the sewage pump sending the utility model discloses. Controlling the average water inlet flow to be 12.5m3And h, enabling the sewage to sequentially flow through the anoxic zone, the anaerobic zone and the aerobic zone to perform denitrification and denitrification reaction, phosphorus release by phosphorus accumulating bacteria and aerobic carbonization reaction, then performing nitration reaction in the MBR zone, finally pumping the treated clear water to a backwashing water tank by a water production pump, and discharging the clear water after reaching the standard through a clear water outlet pipe. Controlling the dissolved oxygen in the anoxic zone to be between 0.2 and 0.5mg/L, controlling the dissolved oxygen in the anaerobic zone to be less than 0.2mg/L, controlling the dissolved oxygen in the aerobic zone to be between 2 and 4mg/L, controlling the dissolved oxygen in the MBR zone to be between 4 and 5mg/L, controlling the sludge reflux ratio to be between 50 and 100 percent, discharging the residual sludge once every three days, and discharging for 20 minutes every time.
Present system operation is normal, and a week is in succession the utility model discloses an end and play water end sample contrast intake, the data as follows:
the above data show that through the utility model discloses a processing, it can stably reach "town sewage treatment plant pollutant discharge standard" one-level A standard to go out water.
The technical content of the present invention is further described only by the embodiments, which is convenient for the reader to understand, but does not represent that the embodiments of the present invention are limited to this, and any technical extension or re-creation according to the present invention is protected by the present invention. The protection scope of the present invention is subject to the claims, and the above description is only the preferred embodiments of the present invention, and it should be noted that, for those skilled in the art, without departing from the principle of the present invention, several improvements and decorations can be made, and these improvements and decorations should also be regarded as the protection scope of the present invention.
Claims (9)
1. The utility model provides a formula membrane bioreactor buries with component, includes the reaction main part, the reaction main part is buried underground in the ground, its characterized in that, the reaction main part has two, is first reaction main part (100) and second reaction main part (200) respectively, first reaction main part (100) are including anoxic zone (101) and anaerobic zone (102) that connect gradually, second reaction main part (200) are including aerobic zone (201) and MBR district (202) that connect gradually, and this MBR district (202) inside is provided with MBR membrane module (203), the inside of first reaction main part (100) and second reaction main part (200) all is provided with aeration equipment, and this first reaction main part (100) and second reaction main part (200) pass through the pipe connection.
2. The buried membrane bioreactor of claim 1, wherein a first operating space (103) is provided above the first reaction body (100), and a second operating space (204) is provided above the second reaction body (200).
3. The buried membrane bioreactor of claim 2, wherein the aeration device comprises an air pump (106), a plurality of stirring devices and pipelines, the air pump (106) is fixedly arranged in the first operating space (103), the plurality of stirring devices are respectively arranged at the bottom of the anoxic zone (101), the anaerobic zone (102), the aerobic zone (201) and the MBR zone (202), and the stirring devices are connected with the air pump (106) through the pipelines.
4. The buried membrane bioreactor of claim 2, wherein the MBR zone (202) further comprises a water production pump (205), a backwashing water tank (206) and a backwashing water pump (208), the water production pump (205), the backwashing water tank (206) and the backwashing water pump (208) are all installed in the second operating space (204), and the MBR membrane module (203), the water production pump (205), the backwashing water tank (206) and the backwashing water pump (208) form loop connection through pipelines.
5. The split buried membrane bioreactor of claim 4, wherein a backwashing medicine box (209) is further arranged on the second operating space, and the backwashing medicine box (209), the backwashing water pump (208) and the MBR membrane module (203) are sequentially connected through a pipeline.
6. The split buried membrane bioreactor of claim 5, wherein the water production pump (205) and the backwash water pump (208) are both provided with a time control device, and the outlet pipes of the backwash water tank (206) and the backwash medicine box (209) are both provided with electromagnetic valves.
7. The split-type buried membrane bioreactor of claim 6, wherein the MBR area (202) further comprises a sludge return discharge device, the sludge return discharge device comprises a sludge discharge pipe (216), a sludge return pipe (113) and a sludge return air supply pipe (214), one end of the sludge return air supply pipe (214) is connected with the air pump (106), the other end of the sludge return pipe (113) is connected with one end of the sludge discharge pipe (216), the sludge return pipe (113), the sludge discharge pipe (216) and the sludge return air supply pipe (214) are all provided with electromagnetic valves.
8. The membrane bioreactor as claimed in any one of claims 1 to 7, wherein the top of each of the first reaction main body (100) and the second reaction main body (200) is provided with a manhole, and the top of the first reaction main body is also provided with an exhaust pipe (114).
9. The membrane bioreactor as claimed in any one of claims 2 to 7, wherein the first operating space (103) is further provided with an electric cabinet (110), and the electric cabinet is electrically connected with the electromagnetic valve, the air pump (106) and the time control device respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121516310.0U CN215249863U (en) | 2021-07-06 | 2021-07-06 | Split buried membrane bioreactor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121516310.0U CN215249863U (en) | 2021-07-06 | 2021-07-06 | Split buried membrane bioreactor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215249863U true CN215249863U (en) | 2021-12-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121516310.0U Active CN215249863U (en) | 2021-07-06 | 2021-07-06 | Split buried membrane bioreactor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215249863U (en) |
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2021
- 2021-07-06 CN CN202121516310.0U patent/CN215249863U/en active Active
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