CN210825619U - MABR sewage treatment pond reaches MABR sewage treatment system including it - Google Patents
MABR sewage treatment pond reaches MABR sewage treatment system including it Download PDFInfo
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- CN210825619U CN210825619U CN201921733996.1U CN201921733996U CN210825619U CN 210825619 U CN210825619 U CN 210825619U CN 201921733996 U CN201921733996 U CN 201921733996U CN 210825619 U CN210825619 U CN 210825619U
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- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
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Abstract
The utility model provides an MABR sewage treatment pond and including its MABR sewage treatment system relates to sewage treatment technical field, above-mentioned sewage treatment pond includes at least two of MABR anaerobic treatment unit, MABR oxygen deficiency processing unit and MABR aerobic treatment unit that communicate each other; the MABR anaerobic treatment unit, the MABR anoxic treatment unit and the MABR aerobic treatment unit are internally provided with a plurality of MABR module treatment units, and the MABR module treatment units are placed in the MABR anaerobic treatment unit, the MABR anoxic treatment unit and the MABR aerobic treatment unit in a ready-to-use and ready-to-release manner and are used for sewage treatment. Effectively improves the sewage treatment efficiency on the basis of not changing the occupied area of the original sewage treatment facility and achieves the purpose of upgrading or increasing the volume.
Description
Technical Field
The utility model belongs to the technical field of sewage treatment technique and specifically relates to a MABR sewage treatment pond reaches MABR sewage treatment system including it.
Background
In recent years, with the increasing discharge amount of urban sewage, the treatment capacity of the existing sewage treatment plants is limited, and the upgrading and modification of the sewage treatment plants are proposed. At present, in the prior art, the single-level upgrading of a sewage treatment tank or the strengthening treatment of an added integrated treatment facility is mostly adopted, but the integrated treatment efficiency is lower, the process equipment and the flow of sewage treatment can be increased, and meanwhile, the upgrading of the single-level or integrated equipment can not meet the requirement of the collective upgrading of the existing treatment process.
Therefore, it is necessary and urgent to develop a sewage treatment system that can increase the volume of sewage without changing the area occupied by the sewage treatment facilities.
In view of this, the present invention is especially provided.
SUMMERY OF THE UTILITY MODEL
A first object of the utility model is to provide a sewage treatment pond is provided with a plurality of MABR module processing unit in this processing pond, can effectively improve sewage treatment efficiency on the basis that does not change original sewage treatment facility area, has reached the purpose of carrying the mark or increasing the volume.
A second object of the present invention is to provide a sewage treatment system, which comprises the above sewage treatment tank.
The utility model provides an MABR sewage treatment pool, the sewage treatment pool comprises at least two of an MABR anaerobic treatment unit, an MABR anoxic treatment unit and an MABR aerobic treatment unit which are mutually communicated;
the MABR anaerobic treatment unit, the MABR anoxic treatment unit and the MABR aerobic treatment unit are internally provided with a plurality of MABR module treatment units, and the MABR module treatment units are placed in the MABR anaerobic treatment unit, the MABR anoxic treatment unit and the MABR aerobic treatment unit in a ready-to-use and ready-to-release manner and are used for treating sewage;
the MABR module processing unit comprises an MABR membrane module.
Further, the MABR anaerobic treatment unit, the MABR anoxic treatment unit and the MABR aerobic treatment unit are communicated with air supply pipelines, and the air supply pipelines are used for providing gas required by the MABR module treatment unit during sewage treatment.
Furthermore, a valve is arranged on the gas supply pipeline and used for adjusting the gas quantity and pressure entering the MABR anaerobic treatment unit, the MABR anoxic treatment unit or the MABR aerobic treatment unit.
Furthermore, the air supply pipeline is also communicated with a branch air pipe.
Furthermore, the branch air pipes are communicated with the MABR module processing units in series or in parallel.
Furthermore, the air supply pipeline is also communicated with a bottom air pipe.
Furthermore, an aerator is also arranged in the MABR module processing unit, the aerator is communicated with a bottom air pipe, the use of the bottom aerator is controlled by a bottom control valve, and the aerator runs intermittently.
Furthermore, a flow impeller is arranged in the MABR sewage treatment tank and is used for pushing the flow of water flow in the sewage treatment tank.
Further, the dissolved oxygen content of the MABR anaerobic treatment unit is 0-0.2 mg/L; the dissolved oxygen content of the MABR anoxic treatment unit is 0.2-0.5 mg/L; the dissolved oxygen content of the MABR aerobic treatment unit is 1.0-3.0 mg/L.
The utility model provides a pair of MABR sewage treatment system, MABR sewage treatment system includes above-mentioned MABR sewage treatment pond.
Further, sewage treatment system is including equalizing basin, preliminary treatment pond, the pond of just sinking, above-mentioned MABR sewage treatment pond, two heavy ponds and charge device that communicate in proper order.
Compared with the prior art, the beneficial effects of the utility model are that:
the sewage treatment tank provided by the utility model comprises at least two of an MABR anaerobic treatment unit, an MABR anoxic treatment unit and an MABR aerobic treatment unit which are mutually communicated; the MABR anaerobic treatment unit, the MABR anoxic treatment unit and the MABR aerobic treatment unit are internally provided with a plurality of MABR module treatment units, and the MABR module treatment units are placed in the MABR anaerobic treatment unit, the MABR anoxic treatment unit and the MABR aerobic treatment unit in a ready-to-use and ready-to-release manner and are used for treating sewage; the module processing unit mainly comprises an MABR membrane module and a membrane module frame. Effectively improves the sewage treatment efficiency on the basis of not changing the occupied area of the original sewage treatment facility and achieves the purpose of upgrading or increasing the volume.
The utility model provides a sewage treatment system, sewage treatment system includes above-mentioned sewage treatment pond, has effectively improved sewage treatment efficiency, on the basis that does not change original sewage treatment, has realized sewage treatment system and has carried the mark increase-volume.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is an overall overhead structure schematic diagram of a sewage treatment tank provided in embodiment 1 of the present invention;
fig. 2 is a schematic sectional structure view of a sewage treatment tank provided in embodiment 1 of the present invention;
fig. 3 is a schematic view of a flow of a sewage treatment system provided by embodiment 2 of the present invention.
Icon: 4-a sewage treatment tank; 41-MABR processing unit; 411-MABR Module processing Unit; 413-gas supply line; 412-a valve; 42-a water inlet; 43-a water outlet; 44-a separator; 441-water through holes; 4131-a main gas supply pipe; 4132-branch trachea; 4133-bottom trachea; 414-an aerator; 46-a flow pusher; 45-fixing the bracket; 1-a regulating reservoir; 2-a pretreatment pool; 3-primary settling tank; 5-secondary sedimentation tank; 6-a medicine adding device.
Detailed Description
The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in 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.
According to one aspect of the present invention, an MABR sewage treatment tank 4, said sewage treatment tank 4 comprising at least two of an MABR anaerobic treatment unit, an MABR anoxic treatment unit and an MABR aerobic treatment unit, which are communicated with each other;
a plurality of MABR module processing units 411 are arranged in the MABR anaerobic processing unit, the MABR anoxic processing unit and the MABR aerobic processing unit, and the MABR module processing units 411 are placed in the MABR anaerobic processing unit, the MABR anoxic processing unit and the MABR aerobic processing unit in a ready-to-use and ready-to-place mode for sewage treatment;
the module processing unit mainly consists of an MABR membrane module, a membrane module frame and a corresponding pipeline control valve 412.
The MABR (membrane-aeration biofilm reactor) is a method for carrying out bubble-free aeration on a microbial membrane and a water body growing on the surface of a polymer membrane by utilizing an aeration membrane component, wherein oxygen and nutrients are respectively utilized by microorganisms from two sides of a hollow fiber membrane through the actions of concentration driving, microorganism adsorption and the like in the aeration process. The microorganisms decompose pollutants in the water into simple inorganic metabolites while utilizing nutrients. Therefore, in the sewage treatment process, the MABR module treatment unit 411 provides an attachment carrier for biofilm growth on the one hand; on the other hand, the MABR purifies the water body by introducing oxygen or high-pressure air into the membrane inner cavity so that the oxygen permeates the membrane to supply oxygen to the biological membrane attached to the surface of the aeration membrane in a bubble-free manner.
The above-mentioned "at least two" of the present invention means that the MABR anaerobic treatment unit, the MABR anoxic treatment unit and the MABR aerobic treatment unit are combined into two or more units, which may be a plurality of units. For example, the sewage treatment tank 4 may be a combination of a plurality of MABR anaerobic treatment units and one MABR anoxic treatment unit, a combination of a plurality of MABR anaerobic treatment units and a plurality of MABR anoxic treatment units, or a combination of a plurality of MABR anaerobic treatment units and a plurality of MABR anoxic treatment units and a plurality of MABR aerobic units.
The MABR module processing unit 411 carries out sewage treatment's concrete work material and effect and does:
the utility model provides an MABR sewage treatment pond 4, MABR sewage treatment pond 4 includes at least two of MABR anaerobic treatment unit, MABR anoxic treatment unit and MABR aerobic treatment unit that communicate each other; the inside of MABR anaerobic treatment unit, MABR anoxic treatment unit and MABR aerobic treatment unit all is provided with a plurality of MABR module processing unit 411, MABR module processing unit 411 is used for the treatment of sewage. Therefore, the utility model discloses sewage treatment pond 4 has effectively improved the sewage treatment efficiency of current MABR anaerobic treatment unit, MABR oxygen deficiency processing unit and MABR aerobic treatment unit through the joining (producing effects such as concentration drive and microbial adsorption) of MABR module processing unit 411, and then has realized carrying out the purpose of carrying out the bid or increase-volume on the basis that does not change original sewage treatment facility occupation of land.
Preferably, the MABR membrane module consists of an MABR composite membrane and end sockets at two ends of the MABR composite membrane, and the MABR composite membrane mainly consists of a hollow fiber membrane. More preferably, the hollow fiber membrane is a composite membrane for MABR disclosed in CN203139913, and the composite membrane has the advantages of strong oxygen permeability, high strength, good membrane hanging performance and the like.
As a preferred embodiment, the MABR treatment unit 41 may be divided into an MABR anaerobic treatment unit, an MABR anoxic treatment unit, and an MABR aerobic treatment unit according to the dissolved oxygen content. Oxygen permeates oxygen from inside to outside through the hollow fiber membrane filaments in the MABR module processing unit 411, and microorganisms are attached to the outer surfaces of the membrane filaments to gradually form a microbial membrane from inside to outside.
Wherein, the hollow fiber membrane in the MABR anaerobic treatment unit is in an anaerobic environment, but the microbial membrane structure on the surface of the membrane wire can synchronously realize nitrification and denitrification, decarburization and dephosphorization (simultaneously removing COD and nitrogen), and the like; the hollow fiber membrane in the MABR anoxic treatment unit is in an anoxic environment, but the microbial membrane structure on the surface of the membrane wire can synchronously realize nitrification, denitrification, decarburization and dephosphorization (simultaneously remove COD and nitrogen); the hollow fiber membrane of the MABR aerobic treatment unit is in an aerobic environment, a large number of aerobic microorganisms grow on the outer surface of the membrane wire, the aerobic treatment effect is very good, the oxygen utilization rate of the MABR membrane is high, and the air supply can be saved; the microorganism is easy to be attached to the surface of the membrane wire, and the microorganism membrane falls off when the water quality in the system has impact fluctuation, can be recovered in a short time, and has strong impact resistance.
In a preferred embodiment of the present invention, the sewage treatment tank 4 is provided with a water inlet 42 and a water outlet 43, the water inlet 42 is disposed on the first MABR processing unit 41, and the water outlet 43 is disposed on the last MABR processing unit 41.
In the above preferred embodiment, the partition 44 is vertically provided in the sewage treatment tank 4, and the end of the partition 44 is provided with the water through hole 441, and the sewage is passed from one MABR treatment unit 41 to the next MABR treatment unit 41 through the water through hole 441.
Preferably, the partition 44 is replaced by a partition wall, the end of which is provided with a flow passage through which sewage passes from one MABR treatment unit 41 to the next MABR treatment unit 41.
In a preferred embodiment of the present invention, the MABR processing unit 41 is further provided with a fixing bracket 45, and a plurality of MABR membrane modules are fixedly mounted on the fixing bracket 45, so that the MABR processing unit 411 is more firmly disposed in the MABR processing unit 41.
In a preferred embodiment of the present invention, the MABR anaerobic treatment unit, the MABR anoxic treatment unit and the MABR aerobic treatment unit are all connected to an air supply line 413, and the air supply line 413 is used for providing the gas required by the MABR module treatment unit 411 during sewage treatment.
In a preferred embodiment, the MABR processing unit 41 is further provided with a gas supply line 413 for supplying gas. Preferably, the gas is oxygen.
In the above preferred embodiment, the gas supply line 413 is provided with a valve 412, and the valve 412 is used for adjusting the gas amount and pressure entering the MABR anaerobic treatment unit, the MABR anoxic treatment unit and the MABR aerobic treatment unit.
In a preferred embodiment of the present invention, the air supply pipe 413 is further connected to a branch air pipe 4132 and a bottom air pipe 4133, the branch air pipe 4132 and the bottom air pipe 4133 are both connected to the air supply pipe 413, each of the parts is controlled by a valve 412, and the valve 412 of the bottom air pipe 4133 belongs to an intermittent operation state, and the number of times and the time for opening are small and short.
Preferably, the bypass gas pipe 4132 and the bottom gas pipe 4133 are respectively provided with valves 412 to regulate the flow rate of the gas.
In the above preferred embodiment, the MABR module processing units 411 are connected in series or in parallel through the branch air pipes 4132.
As a preferred embodiment, the MABR module processing units 411 may be connected in series or in parallel, as long as space saving is achieved.
In the above preferred embodiment, the MABR processing unit 41 is further provided with an aerator 414, and the aerator 414 is communicated with the bottom air pipe 4133.
Preferably, the aerator 414 is disposed below the MABR module treatment unit 411.
As a preferred embodiment, the aerator 414 is operated intermittently, and is opened when the biofilm in the MABR module treatment unit 411 is thicker, so that the microbial film on the hollow fiber membrane is better degraded.
In a preferred embodiment of the present invention, the dissolved oxygen content of the MABR anaerobic treatment unit is 0 to 0.2 mg/L;
preferably, the dissolved oxygen content of the MABR anoxic treatment unit is 0.2-0.5 mg/L;
preferably, the dissolved oxygen content of the MABR aerobic treatment unit is 1.0-3.0 mg/L.
In a preferred embodiment of the present invention, a flow pushing device 46 is further disposed in the sewage treatment tank 4.
In a preferred embodiment, a flow impeller 46 is further disposed in the wastewater treatment tank 4 for driving the flow of water in the wastewater treatment tank 4, so as to accelerate the wastewater treatment effect.
Preferably, the sewage treatment of the MABR sewage treatment tank 4 comprises the following specific steps:
(a) designing and calculating the number of the MABR processing units 41 and the number of the MABR module processing units 411 in the MABR processing units 41 according to the water quality, the water quantity and the processing requirements, and designing the arrangement mode of the MABR module processing units 411 in each processing area;
(b) the MABR module processing units 411 are arranged in the MABR processing units 41 in an independent or series-parallel mode, and are connected with pipeline valves 412, and the gas supply quantity is controlled by the valves 412 to meet the dissolved oxygen requirement and the biomembrane layered structure requirement of each MABR processing unit 41;
wherein, the control of the dissolved oxygen content of the water body is respectively as follows: the dissolved oxygen content of the MABR anaerobic treatment unit is 0-0.2 mg/L; the dissolved oxygen content of the MABR anoxic treatment unit is 0.2-0.5 mg/L; the dissolved oxygen content of the MABR aerobic treatment unit is 1.0-3.0 mg/L; carrying out microorganism inoculation and biological membrane domestication by using activated sludge of a sewage treatment plant and nutrition of pollutants in sewage;
(c) the air supply pressure of each MABR processing unit 41 is controlled to be 0-80 kPa, and the air supply pressure of each group of MABR module processing units 411 is adjusted through a branch air pipe 4132 and a valve 412;
(d) and according to the water quality, the water quantity and the treatment requirement, the valve 412 is regulated and controlled to enable each MABR treatment unit 41 to realize the set dissolved oxygen environment and the layered structure of the biological membrane, so that the nitrogen, phosphorus and organic carbon in the water body can be efficiently removed.
According to an aspect of the present invention, a sewage treatment system comprises the above sewage treatment tank 4.
The utility model provides a sewage treatment system, sewage treatment system includes above-mentioned sewage treatment pond 4, and this processing system has effectively improved the sewage treatment efficiency of current different dissolved oxygen within ranges through the mode of adding MABR modular processing unit 411, has realized carrying the purpose of marking or increase-volume on the basis that does not change original sewage treatment.
According to an aspect of the utility model, an above-mentioned MABR sewage treatment system's application method specifically includes following step:
(1) the MABR module processing unit 411 is implanted into an anaerobic zone, an anoxic zone and an aerobic zone of an original or newly-built sewage treatment plant in a single module or multi-module mode;
(2) the dissolved oxygen content in the MABR sewage treatment tank 4 is adjusted to meet the requirement of anaerobic/anoxic/aerobic dissolved oxygen in a treatment area, or the matching of each treatment unit is adjusted;
(3) the outer surface of the hollow fiber membrane of the MABR membrane component is utilized to form a microbial membrane structure to realize synchronous nitrification and denitrification in the same MABR sewage treatment tank 4, so that sewage is purified.
The technical solution of the present invention will be further explained with reference to the following embodiments and the accompanying drawings.
Example 1
Fig. 1 is a schematic overall overhead structure diagram of an MABR sewage treatment tank 4 provided in embodiment 1 of the present invention;
as shown in fig. 1, an MABR sewage treatment tank 4, the MABR sewage treatment tank 4 is composed of 1 MABR anaerobic treatment unit, 2 MABR anoxic treatment units and 3 MABR aerobic treatment units, pretreated sewage enters the bottom of the tank body from one end of the MABR anaerobic treatment unit of the MABR tank, a water inlet distributor is arranged at the bottom of the tank body and distributes incoming water, and an air source is supplied to each treatment area through an air supply pipeline 413. In the MABR anaerobic treatment unit, an MABR membrane module frame is used, and a designed number of MABR membrane modules are installed and fixed on the MABR membrane module frame; the MABR anoxic treatment unit and the aerobic treatment unit are provided with a plurality of MABR membrane component frames, the designed number of MABR membrane components are installed and fixed on each MABR membrane component frame in groups, and the membrane component frames provided with the MABR membrane components are installed inside the water tank.
The MABR sewage treatment tank 4 is not limited to the above layout, and the corresponding treatment area is adjusted according to the water quality and quantity requirements.
The MABR sewage treatment tank 4 adopts a plug flow type, sewage sequentially enters an MABR anaerobic treatment unit, an MABR anoxic treatment unit and an MABR aerobic treatment unit, a plug flow device 46 is arranged at the end part of each treatment area, each area is separated by a partition plate 44 or a partition wall, a flow channel is arranged at the tail end of the partition plate 44, and the sewage enters the next MABR treatment unit 41 from one MABR treatment unit 41 through the flow channel.
The MABR sewage treatment tank 4 adopts lower water inlet and upper water outlet, the water outlet end can be provided with an overflow weir, and the sewage is discharged after being collected and enters the next procedure.
The inside of MABR anaerobic treatment unit, MABR anoxic treatment unit and MABR aerobic treatment unit all is provided with a plurality of MABR module processing unit 411, MABR module processing unit 411 is used for the treatment of sewage.
Referring to fig. 1, the sewage treatment tank 4 is provided with a water inlet 42 and a water outlet 43, the water inlet 42 being provided on the first MABR processing unit 41 and the water outlet 43 being provided on the last MABR processing unit 41.
Fig. 2 is a schematic sectional structure view of a sewage treatment tank 4 provided in embodiment 1 of the present invention.
As shown in fig. 2, the air supply line 413 is further communicated with a branch air pipe 4132 and a bottom air pipe 4133, and both the branch air pipe 4132 and the bottom air pipe 4133 are communicated with the air supply line 413.
In the above preferred embodiment, the MABR processing unit 41 is further provided with a fixing bracket 45, and a plurality of MABR membrane modules are fixedly mounted on one fixing bracket 45, so that the MABR processing unit 411 is more firmly arranged in the MABR processing unit 41.
In the above preferred embodiment, the branch air pipe 4132 and the bottom air pipe 4133 are provided with the valves 412, and the valves 412 are used for controlling the air intake amount of the branch air pipe 4132 and the bottom air pipe 4133.
In a preferred embodiment of the present invention, an aerator 414 is further disposed in the MABR processing unit 41, and the aerator 414 is communicated with the bottom air pipe 4133, and disposed below the MABR module processing unit 411, and is controlled by the bottom valve 412 to operate intermittently.
In a preferred embodiment of the present invention, a flow pushing device 46 is further disposed in the sewage treatment tank 4 for pushing the flow of water flow in the sewage treatment tank 4, so as to accelerate the treatment effect of sewage.
The specific implementation manner of the sewage treatment tank 4 in this embodiment is as follows:
the MABR sewage treatment tank 4 is provided with 1 MABR anaerobic treatment unit, 2 MABR anoxic treatment units and 3 MABR aerobic treatment units. Pretreated sewage (after primary precipitation) enters from one end of the MABR anaerobic treatment unit, a water distributor is arranged at an inflow end, the sewage sequentially enters the MABR anaerobic treatment unit, the MABR anoxic treatment unit and the MABR aerobic treatment unit in a lower water inlet mode, pollutants in a water body are degraded through a microbial film attached to the surface of the MABR film, so that the sewage is purified, the sewage enters a secondary sedimentation tank and a subsequent process after being treated in the MABR sewage treatment tank 4, and a water outlet end adopts an overflow weir and other forms and collects water. The specific implementation process comprises the following steps:
(1) the membrane module frame is arranged in the MABR anaerobic treatment unit, the MABR membrane modules are uniformly fixed on the membrane module frame according to the designed number, the membrane module frames are arranged in the MABR anoxic treatment unit and the MABR aerobic treatment unit, the MABR membrane modules are fixed on the membrane module frame in groups, and the membrane module frame for fixing the MABR membrane modules is arranged in the MABR anoxic treatment unit and the MABR aerobic zone treatment unit according to the design calculation.
(2) An air source enters from one end of the MABR anaerobic treatment unit through an air supply pipeline 413, a main air supply pipeline 4131 is distributed in the MABR sewage treatment tank 4, air is supplied to the MABR membrane modules through a branch air pipeline, the dissolved oxygen content in each treatment area is adjusted through a valve 412, wherein the dissolved oxygen content of the MABR anaerobic treatment unit is 0-0.2 mg/L, the dissolved oxygen content of the MABR anoxic treatment unit is 0.2-0.5 mg/L, and the dissolved oxygen content of the MABR aerobic treatment unit is 1.0-3.0 mg/L.
(3) The bottom aeration pipe is connected with a main air supply pipe 4131 and is controlled by a bottom control valve to operate intermittently. Each treatment area of the MABR sewage treatment tank 4 is separated by a partition plate 44 or a partition wall, for example, a flow impeller 46 is arranged at the tail end of an MABR anaerobic treatment unit, a flow channel is arranged on the partition plate 44, water sequentially flows into the next treatment unit, and (4) an overflow weir at the water outlet end is arranged at the tail end of an MABR aerobic treatment unit, and the next treatment unit is collected.
Example 2
As shown in fig. 3, a sewage treatment system comprises a regulating tank 1, a pretreatment tank 2, a primary sedimentation tank 3, the sewage treatment tank 4 and a secondary sedimentation tank 5 which are sequentially communicated through pipelines;
in the preferred embodiment, a chemical adding device 6 is further disposed between the sewage treatment tank 4 and the secondary sedimentation tank 5.
This embodiment sewage treatment system includes above-mentioned sewage treatment pond 4, and this processing system has effectively improved the sewage treatment efficiency of current different dissolved oxygen within ranges through the mode of adding the MABR subassembly, has realized carrying out the mesh of upgrading the increase-volume on the basis that does not change original sewage treatment.
Effect example 1
The water treatment amount of a certain urban sewage treatment plant is 5000m3And d, the effluent quality requirement reaches the first-class B standard of pollutant emission Standard of urban Sewage treatment plant (GB18918-2002), the treatment process is A2O process, the effluent is discharged into a nearby river channel, and the discharge standard of the sewage treatment plant is improved to the first-class A standard of pollutant emission Standard of urban sewage treatment plant (GB18918-2002) due to the increasingly strict requirement on environmental management, namely the main water quality indexes of the effluent reach COD (chemical oxygen demand) less than or equal to 50mg/L, and ammonia nitrogen less than or equal to 5mg/L, TN less than or equal to 15mg/L, TP less than or equal to 0.5 mg/L. The sewage treatment plant is improved, and a part of biochemical treatment process is intercepted, wherein the treated water quantity is 1000m3The method comprises the steps of modifying, setting 1 MABR anaerobic treatment unit, 2 MABR anoxic treatment units and 4 MABR aerobic treatment units, co-implanting 1400 groups of MABR membrane assemblies, putting three treatment units in a ratio of 1:3:10, wherein the main indexes of effluent after modification treatment reach COD (chemical oxygen demand) less than or equal to 45mg/L, ammonia nitrogen less than or equal to 4mg/L, TN less than or equal to 15mg/L, TP less than or equal to 0.5mg/L, and the primary A standard of pollutant discharge standard of urban sewage treatment plants (GB18918-2002) can be met, so that the original tank capacity is not changed, and the effect of improving water quality is realized.
Effect example 2
The treated water amount of a certain urban sewage treatment plant is 10000m3And d, the effluent quality meets the first-class A standard of pollutant discharge Standard of urban wastewater treatment plants (GB18918-2002), the treatment process is A2O process, the effluent is discharged into a nearby river channel, and the amount of water entering the wastewater treatment plant is greatly increased due to the increase of the amount of urban wastewater, so that the original wastewater treatment facility can hardly meet the wastewater treatment requirement. According to the requirements, the sewage treatment plant is modified and a part of the biochemical treatment process is interceptedTreated water amount 2000m3And d, modifying, namely setting 2 MABR anaerobic treatment units, 3 MABR anoxic treatment units and 5 MABR aerobic treatment units, co-implanting 3000 groups of MABR membrane assemblies, putting the three treatment units in a ratio of 1:3:11, increasing the original water amount by 25%, wherein the main indexes of the modified effluent can reach COD (chemical oxygen demand) less than or equal to 50mg/L, ammonia nitrogen less than or equal to 5mg/L, TN less than or equal to 15mg/L, TP less than or equal to 0.5mg/L, and the first-level A standard of pollutant discharge standard of urban sewage treatment plants (GB18918-2002), so that the original tank capacity is not changed, and the compatibilization effect is realized.
To sum up, the utility model discloses sewage treatment pond 4 handles sewage through the MABR processing unit 41 that is provided with a plurality of MABR module processing unit 411, and simultaneously, still be provided with air supply line 413 in the MABR processing unit 41, be provided with the dissolved oxygen content that valve 412 is used for controlling each MABR processing unit 41 on the air supply line 413, and then effectively improved current different dissolved oxygen within range sewage treatment unit's sewage treatment efficiency, and then realized carrying out the purpose of upgrading or increasing-volume on the basis that does not change original sewage treatment facility area.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.
Claims (10)
1. An MABR sewage treatment tank is characterized by comprising at least two of an MABR anaerobic treatment unit, an MABR anoxic treatment unit and an MABR aerobic treatment unit which are communicated with one another;
the MABR anaerobic treatment unit, the MABR anoxic treatment unit and the MABR aerobic treatment unit are internally provided with a plurality of MABR module treatment units, and the MABR module treatment units are placed in the MABR anaerobic treatment unit, the MABR anoxic treatment unit and the MABR aerobic treatment unit in a ready-to-use and ready-to-release manner and are used for treating sewage;
the MABR module processing unit comprises an MABR membrane module.
2. The MABR sewage treatment basin of claim 1, wherein said MABR anaerobic treatment unit, said MABR anoxic treatment unit and said MABR aerobic treatment unit are all in communication with an air supply line for supplying air required by the MABR modular treatment unit for sewage treatment.
3. The MABR sewage treatment plant of claim 2, wherein a valve is provided on the gas supply line for regulating the amount of gas entering the MABR anaerobic treatment unit, the MABR anoxic treatment unit or the MABR aerobic treatment unit.
4. The MABR sewage treatment basin of claim 2, wherein said gas supply line is further communicatively provided with a bypass gas line.
5. The MABR wastewater treatment basin of claim 4, wherein said branch gas pipes communicate in series or in parallel with said plurality of MABR modular processing units.
6. The MABR sewage treatment basin of claim 2, wherein said gas supply line is further communicatively provided with a bottom gas pipe.
7. The MABR wastewater treatment basin of claim 6, wherein said MABR modular treatment units further comprise an aerator, said aerator being in communication with a bottom air line.
8. The MABR sewage treatment basin of claim 1, wherein a flow impeller is further provided in said MABR sewage treatment basin for propelling a flow of water in said sewage treatment basin.
9. An MABR sewage treatment system, comprising the MABR sewage treatment tank of any of claims 1-8.
10. The MABR sewage treatment system of claim 9, comprising a conditioning tank, a pretreatment tank, a primary sedimentation tank, the MABR sewage treatment tank of any one of claims 1-8, a secondary sedimentation tank and a dosing device, which are connected in sequence.
Priority Applications (1)
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| WO2021073522A1 (en) * | 2019-10-16 | 2021-04-22 | 天津海之凰科技有限公司 | Mabr sewage treatment tank, mabr sewage treatment system and method of using same |
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