CN216808488U - MBR advanced denitrification integrated device based on embedding method - Google Patents
MBR advanced denitrification integrated device based on embedding method Download PDFInfo
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Abstract
The utility model relates to an MBR (membrane bioreactor) deep denitrification integrated device based on an embedding method, which comprises a water inlet module and a main module; the inlet of the water inlet module is connected with the carbon source adding device, and the outlet of the water inlet module is connected with the inlet of the lift pump; the main module comprises an anoxic tank, an aerobic tank, an MBR tank, a phosphorus removing agent adding device, a flocculation tank, a sedimentation tank and a clean water tank; the lift pump export is connected to oxygen deficiency pond entry, and oxygen deficiency pond exit linkage to good oxygen pond entry, loads MBS embedding fungus in the good oxygen pond, and good oxygen pond connects the aeration fan, and good oxygen pond backward flow export is connected to oxygen deficiency pond backward flow entry through the backwash pump. The utility model has the beneficial effects that: the utility model combines the aerobic tank filled with MBS embedding bacteria with the MBR tank, fully exerts the advantages of the embedding method and the MBR and has high treatment efficiency; and the phosphorus removing agent is added at the inlet of the flocculation tank through the phosphorus removing agent adding device, so that the solid-liquid separation effect is improved.
Description
Technical Field
The patent relates to a high ammonia-nitrogen wastewater treatment system, concretely relates to MBR advanced denitrification integrated device based on embedding method belongs to municipal sewage advanced treatment retrieval and utilization technical field.
Background
With the gradual enhancement of environmental awareness, the country has higher requirements on the discharge index of sewage, and for micro-polluted source water containing low-concentration ammonia nitrogen, many domestic sewage treatment plants are faced with the problem of how to realize the advanced treatment of sewage by the most suitable method and process or various methods under the condition of limited space and limited natural purification capacity. At present, biochemical processes adopted at home and abroad play a certain role in the aspect of advanced wastewater treatment, but still have a plurality of problems, for example, in the conventional biological denitrification technology, microorganism cultures are generally utilized to directly treat nitrogen-containing wastewater, because microorganisms are dissociated in water, subsequent treatment steps such as precipitation, agglutination, filtration and the like are required after denitrification treatment, and on the other hand, because nitrobacteria are inorganic chemical energy autotrophic bacteria, the propagation speed is slow, the generation period is long, the nitrobacteria are sensitive to environmental factor change, and are easily eliminated by a treatment system and difficult to maintain higher biological concentration, the total hydraulic retention time of the system is longer, and the capital investment and the operating cost are increased. Therefore, in order to further improve the quality and the utilization rate of the supplemented water of the thermal power plant and reduce the emission of pollutants, a high ammonia nitrogen wastewater treatment system which fully exerts the advantages of an embedding method and an MBR, and has high treatment efficiency, good solid-liquid separation effect, small floor area and better economical efficiency is needed to be developed.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome the defects in the prior art and provide the MBR deep denitrification integrated device based on the embedding method, which fully exerts the advantages of the embedding method and the MBR, and has the advantages of high treatment efficiency, good solid-liquid separation effect, small occupied area and better economy.
The MBR deep denitrification integrated device based on the embedding method comprises a water inlet module and a main module; the inlet of the water inlet module is connected with the carbon source adding device, and the outlet of the water inlet module is connected with the inlet of the lift pump; the main module comprises an anoxic tank, an aerobic tank, an MBR tank, a phosphorus removing agent feeding device, a flocculation tank, a sedimentation tank and a clean water tank; the outlet of the lifting pump is connected to the inlet of the anoxic tank, the outlet of the anoxic tank is connected to the inlet of the aerobic tank, MBS embedding bacteria are filled in the aerobic tank, the aerobic tank is connected with the aeration fan, and the reflux outlet of the aerobic tank is connected to the reflux inlet of the anoxic tank through a reflux pump; the outlet of the aerobic tank is connected to the inlet of the MBR tank, an MBR membrane is arranged in the MBR tank, and the MBR membrane is connected with an aeration fan; MBR pond export is connected to the flocculation basin entry through the MBR suction pump, and the flocculation basin entry is still connected the dephosphorization and is thrown the feeder apparatus, and flocculation basin exit linkage to sedimentation tank entry, sedimentation tank exit linkage to clean water basin entry, and the clean water basin front end is equipped with ultraviolet disinfector, and the clean water basin passes through MBR backwash water pump and is connected to the MBR pond, connects MBR charge device on the backwash pipeline.
Preferably, the method comprises the following steps: the module of intaking sled dress complete set alone, the module of intaking mainly comprises case, agitator, elevator pump and electric cabinet of intaking, is equipped with the agitator in the case of intaking, and case, agitator and elevator pump of intaking all connect the electric cabinet.
Preferably, the method comprises the following steps: the main module adopts container type structural equipment; the anoxic tank, the aerobic tank, the MBR tank, the flocculation tank, the sedimentation tank and the clean water tank in the main module are all made of carbon steel.
Preferably, the method comprises the following steps: the phosphorus removal agent feeding device mainly comprises a solution tank, a stirrer, a dosing pump and an electric cabinet, wherein the stirrer is arranged in the solution tank, an outlet of the solution tank is connected to an inlet of the dosing pump, the solution tank, the stirrer and the dosing pump are all connected with the electric cabinet, and the solution tank is provided with a fixing facility.
Preferably, the method comprises the following steps: the gas distribution pipeline of the aerobic tank adopts a looped network mode.
Preferably, the method comprises the following steps: an MBR membrane element of the MBR tank adopts a polyvinylidene fluoride curtain type MBR membrane; the aeration device and the MBR membrane component are integrated, the aeration device comprises an aerator and a corresponding pipe valve, an aeration branch pipe in the MBR membrane component adopts a gas distribution system, and the opening direction of a perforation is downward.
Preferably, the method comprises the following steps: the inlet of the anoxic tank and the clean water tank are respectively provided with a flowmeter, a pH meter, a DO meter, a COD on-line monitor and NH3The MBR tank is provided with an online temperature instrument.
The utility model has the beneficial effects that: the utility model combines the aerobic tank filled with MBS embedding bacteria with the MBR tank, fully exerts the advantages of the embedding method and the MBR and has high treatment efficiency; a phosphorus removing agent is added at the inlet of the flocculation tank through a phosphorus removing agent adding device, so that the solid-liquid separation effect is improved; the water inlet module is independently skid-mounted into a whole, so that the floor area is small, and the economical efficiency is better.
Drawings
FIG. 1 is a schematic process flow diagram of the present patent.
Description of reference numerals: 1-a water inlet tank; 2-a lift pump; 3-a carbon source adding device; 4-anoxic pond; 5-a reflux pump; 6-an aerobic tank; 7-MBS embedding bacteria; 8-MBR membrane; 9-an aeration fan; 10-MBR tank; 11-MBR suction pump; 12-a phosphorus removing agent adding device; 13-a flocculation tank; 14-a sedimentation tank; 15-ultraviolet ray sterilizer; 16-a clean water tank; 17-MBR backwashing water pump; 18-MBR dosing device; 19-washing a membrane medicine box; 61-a water inlet module; 62-the main module.
Detailed Description
The present invention will be further described with reference to the following examples. The following examples are set forth merely to aid in the understanding of the utility model. It should be noted that, for those skilled in the art, it is possible to make various improvements and modifications to the present invention without departing from the principle of the present invention, and those improvements and modifications also fall within the scope of the claims of the present invention.
Example one
This application is trueThe embodiment I provides an MBR (membrane bioreactor) deep denitrification integrated device based on an embedding method, which is mainly used for deep treatment when effluent of an urban sewage treatment plant is reused as circulating cooling water and industrial miscellaneous water of a thermal power plant, and main overproof items of wastewater of the MBR deep denitrification integrated device comprise NH3-N、CODCr、BOD5And so on. The device has the advantages of simple operation of the microorganism immobilization method, high treatment efficiency, easy control of reaction, high purity and high efficiency of strains, high biological concentration, no sludge generation, good solid-liquid separation effect, flexible application and the like. The structure of the device comprises a water inlet module 61 and a main module 62; the water inlet module 61 comprises a water inlet tank 1, a lift pump 2 and a carbon source adding device 3, the inlet of the water inlet module 61 is connected with the carbon source adding device 3, and the outlet of the water inlet module 61 is connected with the inlet of the lift pump 2; the main module 62 comprises an anoxic tank 4, an aerobic tank 6, an MBR tank 10, a phosphorus removing agent adding device 12, a flocculation tank 13, a sedimentation tank 14 and a clean water tank 16; an outlet of the lift pump 2 is connected to an inlet of the anoxic tank 4, an outlet of the anoxic tank 4 is connected to an inlet of the aerobic tank 6, MBS embedding bacteria 7 are filled in the aerobic tank 6, the aerobic tank 6 is connected with an aeration fan 9, and a backflow outlet of the aerobic tank 6 is connected to a backflow inlet of the anoxic tank 4 through a backflow pump 5; the outlet of the aerobic tank 6 is connected to the inlet of an MBR tank 10, an MBR membrane 8 is arranged in the MBR tank 10, and the MBR membrane 8 is connected with an aeration fan 9; the MBR pond 10 export is connected to flocculation basin 13 entry through MBR suction pump 11, and flocculation basin 13 entry is still connected phosphorus removal agent and is thrown feeder apparatus 12, and 13 exit linkage in flocculation basin is to 14 entries in the sedimentation tank, and 14 exits in sedimentation tank are connected to the 16 entries in clean water basin, and 16 front ends in clean water basin are equipped with ultraviolet disinfector 15, and clean water basin 16 is connected to MBR pond 10 through MBR backwash water pump 17, connects MBR charge device 18 on the backwash pipeline.
Example two
On the basis of the first embodiment, the second embodiment of the present application provides a more specific MBR advanced denitrification integrated device based on an embedding method, and the specific structure is as follows:
the water inlet module 61 is independently skid-mounted into a whole, has a compact structure and occupies small area, and can be arranged nearby according to actual conditions on site. The module 61 of intaking mainly comprises case 1, agitator, elevator pump 2 and the electric cabinet of intaking, intakes and is equipped with the agitator in the case 1, intakes 1 exit linkage of case to the 2 import of elevator pump, intakes case 1, agitator and elevator pump 2 and all connects the electric cabinet, and the agitator opens and stops, the elevator pump opens and stops, intake case liquid level signal all controls on the electric cabinet. The water inlet module leads the reclaimed water in the power plant into the water inlet tank through the water inlet pump and fully stirs and mixes the high-concentration medicament solution led by the medicament feeding device, and then the mixed solution is led into the anoxic tank of the integrated biological reaction tank through the lift pump so as to complete the subsequent water treatment process. The liquid level of the water inlet tank is interlocked with the water inlet pump, the water inlet pump is started when the liquid level is low, and the water inlet pump with the high liquid level is stopped.
The main module 62 is a container type structure device, and integrates units such as an A/O biological treatment system (filled with MBS embedded bacteria), an MBR membrane treatment system, an ultrafiltration membrane backwashing system, a clean water tank and the like. The aeration fan is used for aeration and oxygen supply to the aerobic tank, and the embedded bacteria biological process is adopted, so that the process completely utilizes the biodegradation technology and does not add any chemical auxiliary agent. The anoxic tank 4, the aerobic tank 6, the MBR tank 10, the flocculation tank 13, the sedimentation tank 14 and the clean water tank 16 in the main module are all made of carbon steel, the inner wall of the main module is subjected to anti-corrosion treatment by epoxy resin, and the outer wall of the main module is subjected to anti-corrosion treatment by perchloroethylene.
The phosphorus removal agent feeding device 12 is arranged in the main module 62, the phosphorus removal agent feeding device 12 mainly comprises a solution tank, a stirrer, a dosing pump, an electric cabinet and the like, the stirrer is arranged in the solution tank, an outlet of the solution tank is connected to an inlet of the dosing pump, the solution tank, the stirrer and the dosing pump are all connected with the electric cabinet, the stirrer starts and stops, the dosing pump starts and stops, and liquid level signals of the solution tank are all controlled on the electric cabinet. The phosphorus removing agent feeding device conveys the prepared solution to a dosing point or a formulated system by a feeding pump according to the concentration of the required agent, and the solution tank is provided with a fixed facility to prevent dumping.
The hydraulic retention time of the anoxic tank is 3.5h, and the hydraulic retention time of the aerobic tank is 2.4 h. The gas distribution pipeline of the aerobic tank adopts a looped network mode, the main body disc surface gas feeding groove adopts a low-resistance design, and the blockage of the micropores of the aerator during operation is avoided. The base plate of the aerator is provided with a check valve device, and the mixed liquid is prevented from entering the air distribution branch pipe when the pipeline system stops air supply, so that the mixed liquid in the branch pipe is prevented from being blocked. The air does not need special filtration, and the intermittent aeration is not blocked.
The membrane elements of the MBR tank 10 adopt polyvinylidene fluoride (PVDF) curtain type MBR membranes with extremely strong pollution resistance, and can tolerate chemical agents with higher concentration. The inner diameter of the fiber membrane component is about 0.6mm, the outer diameter is about 1.0mm, micropores are distributed on the wall of the hollow fiber membrane component, and the aperture is 0.05 μm.
The aeration device (comprising an aerator and a corresponding pipe valve) and the MBR membrane module are designed integrally, the aeration branch pipe in the membrane module is preferably a large-resistance gas distribution system, the perforation direction of the perforation is downward, and the aperture can ensure that the bubbles discharged by the aerator meet the requirements of stirring and oxygenation in the whole range and the aeration uniformity in the tank. The aeration fan 9 is connected with the MBR membrane module and provides air for the MBR membrane.
And the MBR membrane system integrates a backwashing system, a chemical cleaning system, a dosing system and other units. The backwashing system comprises an MBR backwashing water pump 17, a corresponding pipeline and a corresponding valve; the chemical cleaning system comprises a membrane washing pesticide box 19, and MBR membranes are lifted out and put in the pesticide box for cleaning in half a year or one year generally; the dosing system includes an MBR dosing device 18.
The side surface of the main module container can be electrically wingspan opened, two ends of the main module container are provided with double doors, two hanging air conditioners and exhaust fans are arranged in the main module container, and two ends of the main module container are respectively provided with maintenance and other electric equipment power taking reserved plug rows.
The A/O biological treatment system inlet and the clean water tank are provided with a flowmeter, a pH meter, a DO meter, a COD on-line monitor and NH3The MBR tank is provided with an online temperature instrument.
In order to improve the space utilization rate, the system is divided into two independent modules which can be combined and arranged according to the site conditions; the water inlet module 61 and the main module 62 form a complete system through a communication cable, and the full-automatic operation of the system is realized through the local integrated PLC arranged on the main module.
EXAMPLE III
The third embodiment of the application provides a working method of an MBR deep denitrification integrated device based on an embedding method, which comprises the following steps: the water from the urban sewage treatment plant is fed into an anoxic tank 4 through a water inlet tank 1 and a lift pump 2, and in the anoxic tank 4, denitrifying bacteria use organic matters in the sewage as carbon sources to make a large amount of nitrate Nitrogen (NO) in the sewage3-N) and nitrous Nitrogen (NO)2-N) reductionIs nitrogen (N)2) Releasing to air to reduce organic matter (BOD)5) Nitrate Nitrogen (NO)3N), nitrous Nitrogen (NO)2-N) concentration; the water in the anoxic tank automatically flows to the aerobic tank 6, MBS embedding bacteria 7 is filled in the aerobic tank 6, the reflux is carried out in the tank through a reflux pump 5, and the organic nitrogen is oxidized into ammonia Nitrogen (NH) in the aerobic tank 63-N) and further nitrated to nitrate Nitrogen (NO)3-N) and nitrous Nitrogen (NO)2N), complete the nitrification denitrification, dephosphorization and reduction of organic matter (BOD)5) Concentration process; the effluent of the aerobic tank automatically flows to an MBR tank 10 for filtration treatment, suspended matters and turbidity are removed through an MBR membrane 8, biological pollutants such as escherichia coli and the like are intercepted, the effluent after treatment enters a flocculation tank 13, and a phosphorus removing agent is added at the inlet of the flocculation tank 13 through a phosphorus removing agent adding device 12, so that suspended particles which are difficult to precipitate in water are aggregated to form large particles which are easy to carry out solid-liquid separation due to the fact that the colloid stability is destroyed, and further dephosphorization is achieved, and organic matters (BOD) are reduced5) The purpose of concentration; the effluent of the flocculation tank is subjected to mud-water separation in a sedimentation tank 14, so that the effluent of the system is clarified and finally enters a clean water tank 16; after the MBR membrane system operates for a period of time, the water producing part of the clean water tank 16 is used as backwashing water of the MBR membrane 8, the backwashing water enters the MBR membrane 8 through an MBR backwashing water pump 17 to be backwashed, and during backwashing, agents such as sodium hypochlorite are added through an MBR dosing device 18.
Example four
The specific implementation mode of the working method of the device is provided by combining the treatment process of the MBR deep denitrification integrated device based on the embedding method, and comprises the following steps:
s1, municipal reclaimed water (discharged water from a municipal sewage treatment plant) firstly enters a water inlet tank 1, the municipal sewage in the water inlet tank is fully stirred and mixed with a carbon source introduced by a dosing device, and then a mixed solution is introduced into an anoxic tank 4 of the integrated biological reaction tank by a lift pump 2.
S2, in the step S1, the mixed solution is introduced into an anoxic tank of the integrated biological reaction tank by a lifting pump (a submersible pump, the material of an overflowing part is 304 stainless steel), in the anoxic tank, denitrifying bacteria use organic matters in the sewage as a carbon source to remove a large amount of nitrate Nitrogen (NO) in the sewage3-N) and nitrous Nitrogen (NO)2-N) reduction toNitrogen (N)2) Releasing to air, and reducing organic matter (BOD)5) Nitrate Nitrogen (NO)3-N), nitrous Nitrogen (NO)2-N) concentration. The hydraulic retention time of the anoxic pond is 3.5 h.
S3, the wastewater in the step S2 automatically flows into an aerobic tank 6, and organic nitrogen is oxidized into ammonia Nitrogen (NH) in the aerobic tank3-N) and further nitrated to nitrate Nitrogen (NO)3N) and nitrous Nitrogen (NO)2N), complete the nitrification denitrification, dephosphorization and reduction of organic matter (BOD)5) And (4) concentration process. The hydraulic retention time of the aerobic tank is 2.4h, the reflux ratio from the aerobic tank to the anoxic tank is 2Q, and a reflux pump adopts a centrifugal pump. The gas distribution pipeline of the aerobic tank adopts a looped network mode, the main body disc surface gas feeding groove adopts a low-resistance design, and the blockage of the micropores of the aerator can be avoided during operation. The base plate of the aerator is provided with a check valve device, and when the pipeline system stops supplying air, the mixed liquid is prevented from entering the air distribution branch pipe, and the mixed liquid in the branch pipe is prevented from being blocked. The air does not need special filtration, and the intermittent aeration is not blocked.
S4, the effluent of the aerobic tank automatically flows into an MBR tank 10 in the step S3, and almost all suspended matters, colloids, bacteria, algae, turbidity and part of high polymer organic matters are intercepted by the MBR tank mainly by utilizing the high-efficiency interception function of an MBR membrane, so that the effluent quality meeting the design requirement is obtained. The MBR membrane material of this example is PVDF, the internal diameter of the fiber membrane component is about 0.6mm, the external diameter is about 1.0mm, the wall of the hollow fiber membrane is fully distributed with micropores, the aperture is 0.05 μm, and the membrane area is 20m2(iii)/tablet. The MBR membrane produced water is pumped by a suction pump. Meanwhile, in order to relieve MBR membrane pollution, an air scrubbing system is arranged beside the MBR tank, and the membrane filaments are scrubbed by utilizing bubbles generated by the aeration fan in an oscillating manner. The aeration fan adopts a screw type blower, and is integrally provided with a motor, a transmission device, an inlet air filter, a silencing elbow, an inlet silencer, an outlet silencer, a shock absorber, an elastic joint, a safety valve, a pressure gauge, a check valve, a protective cover, a basic connecting piece and other accessories, and a sound-proof cover is additionally arranged.
S5, in the step S4, the effluent of the MBR suction pump 11 enters a flocculation tank 13, and a flocculation process is simultaneously carried out in the process of precipitating and removing phosphorus in the flocculation tank through an additional phosphorus removing agent, so that suspended particles difficult to precipitate in water are caused byThe glue is broken in stable state and aggregated to form large particles easy for solid-liquid separation, thereby achieving dephosphorization and reducing organic matter (BOD)5) The purpose of concentration. The effluent of the flocculation tank automatically flows into a sedimentation tank 14 which mainly has the function of mud-water separation to clarify the effluent of a biochemical system, and the surface load is 20-30m3/(m2D), the maximum horizontal flow rate is 0.5mm/s, and a water pump is used for discharging the sludge.
S6, the water produced in the step S5 automatically flows into the clean water tank 16 after being disinfected by ultraviolet rays, and the clean water tank is mainly used for storing purified clean water.
And S7, automatically carrying out online water backwashing after the MBR membrane works for a certain time in the step S4. The water for backwashing comes from a clean water tank; simultaneously, a corresponding pipeline and an MBR backwashing water pump are designed on the clean water tank, clean water in the clean water tank is guided into the MBR tank, and the MBR membrane is backwashed from the downstream side to the upstream side. The MBR membrane automatically carries out on-line chemical backwashing after running for a period of time, the chemical backwashing process is basically the same as that of clear water backwashing, and cleaning agents such as sodium hypochlorite and citric acid need to be added into backwashing water in the cleaning process. And (4) operating the MBR membrane for half a year to one year, and hoisting the membrane component to a membrane washing medicine box 19 for thorough cleaning.
After the sewage is treated in the steps S1 to S6, main pollutants such as ammonia nitrogen, COD and the like can be effectively removed, the ammonia nitrogen concentration of the effluent is less than 2mg/L, and the removal rate of the COD can reach more than 90%.
In the above description, the necessary accessories of pipes, valves, pumps, circuits of electronic devices, etc. between the various components are all conventional arrangements well known to those skilled in the art, and are all arranged according to actual needs. For purposes of brevity, these conventional arrangements will not be described in detail herein; the reader cannot therefore identify this embodiment as incomplete, unclear, or non-implementable; the reader, in doubt of these conventional settings, advises those skilled in the art to consult to obtain the necessary assistance, or to learn from textbooks on higher education related specialties, to master the basic technical abilities that those skilled in the art should possess.
The following table shows the water quality parameter comparison table of the water inlet and the water outlet by adopting the treatment process of the device:
| serial number | Item | Unit | Water quality data (Water inlet) | Water quality data (Water outlet) |
| 1. | Chemical Oxygen Demand (COD)Cr) | mg/L | ≤60 | 5.5 |
| 2. | Biochemical Oxygen Demand (BOD)5) | mg/L | ≤20 | 0.9 |
| 3. | SS | mg/L | ≤20 | 4 |
| 4. | NH3-N | mg/L | ≤15 | 1.3 |
| 5. | TN | mg/L | ≤20 | 8.7 |
| 6. | TP | mg/L | ≤1.5 | 0.5 |
| 7. | pH | 6-9 | 7.5 |
Claims (7)
1. The utility model provides a MBR degree of depth denitrogenation integrated device based on embedding method which characterized in that: comprises a water inlet module (61) and a main module (62); the water inlet module (61) comprises a water inlet tank (1), a lift pump (2) and a carbon source adding device (3), the inlet of the water inlet module (61) is connected with the carbon source adding device (3), and the outlet of the water inlet module (61) is connected to the inlet of the lift pump (2); the main module (62) comprises an anoxic tank (4), an aerobic tank (6), an MBR tank (10), a phosphorus removing agent adding device (12), a flocculation tank (13), a sedimentation tank (14) and a clean water tank (16); an outlet of the lift pump (2) is connected to an inlet of the anoxic tank (4), an outlet of the anoxic tank (4) is connected to an inlet of the aerobic tank (6), MBS embedding bacteria (7) are filled in the aerobic tank (6), the aerobic tank (6) is connected with the aeration fan (9), and a backflow outlet of the aerobic tank (6) is connected to a backflow inlet of the anoxic tank (4) through the backflow pump (5); the outlet of the aerobic tank (6) is connected to the inlet of an MBR tank (10), an MBR membrane (8) is arranged in the MBR tank (10), and the MBR membrane (8) is connected with an aeration fan (9); MBR pond (10) export is connected to flocculation basin (13) entry through MBR suction pump (11), flocculation basin (13) entry is still connected phosphorus removal agent and is added feeder apparatus (12), flocculation basin (13) exit linkage to sedimentation tank (14) entry, sedimentation tank (14) exit linkage to clear water pond (16) entry, clear water pond (16) front end is equipped with ultraviolet disinfector (15), clear water pond (16) are connected to MBR pond (10) through MBR backwash water pump (17), connect MBR on the backwash pipeline and add medicine device (18).
2. The MBR deep denitrification integrated device based on the embedding method according to claim 1, is characterized in that: the water inlet module (61) is independently skid-mounted into a whole, the water inlet module (61) mainly comprises a water inlet tank (1), a stirrer, a lifting pump (2) and an electric cabinet, the stirrer is arranged in the water inlet tank (1), and the water inlet tank (1), the stirrer and the lifting pump (2) are all connected with the electric cabinet.
3. The MBR deep denitrification integrated device based on the embedding method according to claim 1, is characterized in that: the main module (62) adopts container type structure equipment; the anoxic tank (4), the aerobic tank (6), the MBR tank (10), the flocculation tank (13), the sedimentation tank (14) and the clean water tank (16) in the main module are all made of carbon steel.
4. The MBR deep denitrification integrated device based on the embedding method according to claim 1, is characterized in that: the phosphorus removing agent adding device (12) mainly comprises a solution tank, a stirrer, a dosing pump and an electric cabinet, wherein the stirrer is arranged in the solution tank, an outlet of the solution tank is connected to an inlet of the dosing pump, the solution tank, the stirrer and the dosing pump are all connected with the electric cabinet, and the solution tank is provided with a fixed facility.
5. The MBR deep denitrification integrated device based on the embedding method according to claim 1, is characterized in that: the gas distribution pipeline of the aerobic tank adopts a looped network mode.
6. The MBR deep denitrification integrated device based on the embedding method according to claim 1, is characterized in that: an MBR membrane element of the MBR tank (10) adopts a polyvinylidene fluoride curtain type MBR membrane; the aeration device and the MBR membrane component are integrated, the aeration device comprises an aerator and a corresponding pipe valve, an aeration branch pipe in the MBR membrane component adopts a gas distribution system, and the opening direction of a perforation is downward.
7. The MBR deep denitrification integrated device based on embedding method according to claim 1, wherein: the inlet of the anoxic tank (4) and the clean water tank (16) are respectively provided with a flowmeter, a pH meter, a DO meter, a COD on-line monitor and NH3-N on-line monitors and on-line thermometers, the MBR tank (10) being provided with an on-line thermometer.
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| CN113371940A (en) * | 2021-06-21 | 2021-09-10 | 浙江天地环保科技股份有限公司 | MBR (membrane bioreactor) deep denitrification integrated device and method based on embedding method |
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| CN113371940A (en) * | 2021-06-21 | 2021-09-10 | 浙江天地环保科技股份有限公司 | MBR (membrane bioreactor) deep denitrification integrated device and method based on embedding method |
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