CN217323553U

CN217323553U - Biological activated granular active carbon dynamic membrane reactor

Info

Publication number: CN217323553U
Application number: CN202221037865.1U
Authority: CN
Inventors: 周云; 戴安琪; 王紫琪; 杨颖�; 向琬琛
Original assignee: Huazhong Agricultural University
Current assignee: Huazhong Agricultural University
Priority date: 2022-04-26
Filing date: 2022-04-26
Publication date: 2022-08-30
Anticipated expiration: 2032-04-26

Abstract

The utility model provides a biological activation granule active carbon dynamic membrane reactor, it includes: the reactor main body comprises a reaction box and an activated carbon layer, the top of the reaction box is opened, the bottom of the reaction box is provided with a water outlet pipe, the activated carbon layer is arranged in the reaction box and forms a reaction zone and a vacant zone, and the outer wall of the reaction box is also provided with a slide rail along the vertical direction; the water distribution assembly comprises a water distributor main body and a water inlet pipe, the water distributor main body is arranged in the vacant area, one end of the water inlet pipe is communicated to the water distributor main body, and the other end of the water inlet pipe is connected to an external water supply end and used for uniformly distributing water to the surface of the activated carbon layer. The reactor of the utility model adopts the water distributor to distribute water uniformly to the surface of the active carbon layer, and the outer wall of the reactor is provided with an adjustable water outlet bucket which forms a communicating vessel structure with the reaction box, thereby accurately controlling the liquid level in the reaction box.

Description

Biological activated granular active carbon dynamic membrane reactor

Technical Field

The utility model relates to a sewage treatment technical field especially relates to a biological activation granule active carbon dynamic membrane reactor.

Background

The domestic sewage comprises grey water and black water, compared with the black water, the grey water has the characteristics of large water quantity and low pollutant load and has higher recycling potential, the grey water is mainly from washing, bathing, washing machine drainage and the like, the main organic pollutant of the grey water is anionic surfactant-linear alkyl sodium benzenesulfonate (LAS, which can contribute 80% of sewage chemical oxygen demand), and the treated grey water can be recycled, so that the technical innovation aspect of the treatment of the grey water at present has wide prospect, and the conventional treatment method of the grey water mainly comprises physical, chemical and biological methods and the like.

For example, patent CN205241320U discloses a novel aerobic internal circulation biological activated carbon reactor, which comprises a reactor body, wherein the bottom of one side of the reactor body is provided with a sewage inlet, the top of the reactor body is provided with a water outlet, and the bottom of the other side of the reactor body is provided with a sludge discharge port; biological activated carbon particles are added into the reactor body; the reactor is characterized in that a plurality of flow guide pipes are arranged in the reactor body, a plurality of support legs are arranged at the bottoms of the flow guide pipes, flow guide holes are formed among the support legs, the bottom ends of the flow guide pipes are fixed at the bottom of the reactor body, the top ends of the flow guide pipes extend towards the top of the reactor body and are arranged below the water surface, and aeration heads are arranged in the flow guide pipes and are connected to an air blower through air pipelines.

At present, aeration devices are arranged in most sewage reactors, and the oxygen content in sewage is increased through continuously ventilating the sewage so as to facilitate subsequent reaction.

SUMMERY OF THE UTILITY MODEL

In view of the above, there is a need to provide a bioactive granular activated carbon dynamic membrane reactor, which solves the technical problem that the reactor in the prior art adopts an aeration device to easily generate bubbles.

In order to achieve the technical purpose, the technical scheme of the utility model provides a biological activation granular active carbon dynamic membrane reactor, it includes:

the reactor main body comprises a reaction box and an activated carbon layer, the top of the reaction box is opened, the bottom of the reaction box is provided with a water outlet pipe, the activated carbon layer is arranged in the reaction box and forms a reaction zone and a vacant zone, and the outer wall of the reaction box is also provided with a slide rail along the vertical direction;

the water distribution assembly comprises a water distributor main body and a water inlet pipe, the water distributor main body is arranged in the vacant area, one end of the water inlet pipe is communicated with the water distributor main body, and the other end of the water inlet pipe is connected to an external water supply end and used for uniformly distributing water to the surface of the activated carbon layer;

the sliding assembly comprises a sliding block, a water outlet hopper and a water inlet hose, wherein the sliding block is connected with the sliding rail in a sliding mode, the water outlet hopper is fixed on the sliding block, the bottom of the sliding block and the side wall of the sliding block are respectively provided with a water inlet and a water outlet, one end of the water inlet hose is connected with the water inlet, the other end of the water inlet hose is connected with the water outlet pipe in a detachable fixed mode, and the water outlet pipe is used for adjusting the water level of the reaction box.

Furthermore, the water distributor further comprises an end cover, wherein the end cover is detachably and fixedly connected with the opening of the reaction box, the end cover is provided with a fixing hole for the water inlet pipe to penetrate through, and is used for supporting and fixing the water distributor main body, and the end cover is further provided with at least one air inlet.

Furthermore, the number of the air inlet holes is multiple, and the air inlet holes are distributed in a circumferential array.

Further, still include supporting component, supporting component includes base and support frame, the base set up in the bottom of reaction box is used for fixing the reaction box, the support frame set up in the bottom of base is used for supporting the base.

The device further comprises an oxygen content detector, wherein the oxygen content detector is arranged at the bottom of the reaction box and is used for detecting the oxygen content of the liquid flowing through the reaction box.

Further, the reaction box is cylindrical.

Further, a plurality of sampling ports are arranged on the side wall of the reaction box at intervals along the vertical direction.

Furthermore, the water outlet pipe also comprises a control valve, and the control valve is arranged on the water outlet pipe.

Further, the activated carbon layer is an activated carbon particle layer.

Further, the reaction box is a transparent reaction box so as to observe the reaction state in the reaction box.

Compared with the prior art, the beneficial effects of the utility model include: the reactor of the utility model adopts the water distributor to distribute water uniformly, the sewage is fully contacted with the air in the process of going from top to bottom in the vacant area through the water distributor, the in-situ automatic oxygenation is completed, an aeration device is not needed to provide oxygen, and the energy consumption of sewage treatment is greatly reduced; the bottom of the reaction box is connected with the water outlet hopper through the hose, so that the whole device forms a communicating vessel, the water outlet hopper adopts a sliding connection mode, the height can be adjusted as required, the water level in the reaction box can be accurately controlled through the communicating vessel principle, and the device is simple in structure, convenient to operate and easy to maintain.

Drawings

FIG. 1 is a schematic structural diagram of an example of a biological activated granular activated carbon dynamic membrane reactor provided by the present invention;

FIG. 2 is a schematic view of the assembly of the reactor main body and the sliding components in the bioactivated granular activated carbon dynamic membrane reactor according to the embodiment of the present invention;

FIG. 3 is a side view of an example of a bioactivated granular activated carbon dynamic membrane reactor provided by the present invention;

FIG. 4 is a schematic diagram of a water distributor in a biological activated particle activated carbon dynamic membrane reactor according to an embodiment of the present invention.

Detailed Description

The following detailed description of the preferred embodiments of the invention, which is to be read in connection with the accompanying drawings, forms a part of this application, and together with the embodiments of the invention, serve to explain the principles of the invention and not to limit its scope.

Referring to fig. 1, the utility model provides a biological activation granule active carbon dynamic membrane reactor, it includes reactor main part 1, water distribution subassembly 2 and sliding component 3, place in the water distribution subassembly 2 reactor main part 1 is located the open end of reactor main part 1, sliding component 3 sliding connection in the lateral wall of reactor main part 1 and with reactor main part 1 is linked together.

The reactor main body 1 is a place where reaction occurs, and can be used for storing reactants such as activated carbon, a catalyst and the like and introducing a certain amount of sewage, the water distribution assembly 2 is arranged at the opening end of the reactor main body 1 and is used for uniformly distributing water to the inside of the reactor main body (namely the surface of the activated carbon), and the sliding assembly 3 is connected to the side wall of the reactor main body 1 in a sliding manner and is communicated with the reactor main body 1 so as to form a communicating vessel structure, so that the liquid level in the reactor main body 1 is controlled by adjusting the height of the sliding assembly 3.

Referring to fig. 2, reactor main part 1 includes reaction box 11, activated carbon layer 12 and

end cover

13, 11 open-top of reaction box and its bottom are provided with outlet pipe 111, still are provided with the control valve on the outlet pipe 111, are used for control outlet pipe 111 goes out water, place in activated carbon layer 12 in reaction box 11 is formed with reaction zone and vacant district, the outer wall of reaction box 11 still is provided with slide rail 112 along vertical direction, the detachable fixed connection of end cover 13 in 11 openings of reaction box, fixed orifices and a plurality of inlet ports that are circumference array and distribute have been seted up to end cover 13. The reaction box is a transparent reaction box and is made of organic glass so as to observe the reaction state in the reaction box 11; the activated carbon layer 12 is an activated carbon particle layer, and granular activated carbon has the advantages of large surface area, good adsorption performance and the like, can provide a good carrier for the growth of a biological membrane, can continuously adsorb pollutants in sewage for the growth and metabolism of microorganisms in the biological membrane, and can remarkably improve the sewage treatment effect.

Referring to fig. 3, the reaction tank 11 may be a cube, a cylinder, a cone, etc., in the embodiment of the present invention, the reaction tank 11 is cylindrical, the corresponding end cap 13 is also cylindrical, the area inside the cylindrical reaction tank 11 for storing the activated carbon layer is a reaction area, the area not covered by the activated carbon layer is an empty area, and the water distribution component 2 is fixed in the fixing hole of the end cap 13 and located in the empty area. The sidewall of the reaction tank 11 is further provided with a plurality of sampling ports 113 at intervals along the vertical direction, and the filling height of the activated carbon layer 12 slightly exceeds the uppermost sampling port and is spaced from the water distributor component so that the sewage can be fully contacted with the air.

The water distribution component 2 comprises a water distributor main body 21 and a water inlet pipe 22, the water distributor main body 21 is arranged in the vacant area, one end of the water inlet pipe 22 is communicated with the water distributor main body 21, and the other end of the water inlet pipe is communicated with an external sewage supply pump through the fixing hole for uniformly distributing water to the surface of the activated carbon layer 12; referring to fig. 4, the water distributor main body 21 is made of 8 PVE pipes with one closed end, the open ends of the 8 PVE pipes are hermetically connected together to form a regular octagon, the upper opening of the joint is a water distribution inlet, 6 small holes are uniformly formed below each PVE pipe to serve as water distribution ports, sewage is uniformly distributed and dripped into the reactor tank 11 through the water distributor main body and fully contacts with air, oxygen is automatically charged, and the oxygen content of the inlet water is ensured.

The sliding assembly 3 includes a sliding block 31, a water outlet bucket 32 and a water inlet hose 33, the sliding block 31 is connected to the sliding rail 112 in a sliding manner, the water outlet bucket 32 is fixed to the sliding block 31, a water inlet 321 and a water outlet 322 are respectively arranged at the bottom and the side wall of the water outlet bucket 32, one end of the water inlet hose 33 is connected to the water inlet 321, the other end of the water inlet hose 33 is detachably and fixedly connected to the water outlet pipe 111, when a control valve at the position of the water outlet pipe 111 is opened, the water outlet bucket 32 and the reaction tank 11 can form a communicating vessel, and the water level of the sewage in the reaction tank 11 can be controlled by adjusting the height of the water outlet bucket. Wherein, still be provided with the slide rail buckle on the slider 31 to slider 31 can be fixed to the appointed height department of reaction box 11 lateral wall after removing.

In the quantity provided by the utility model, this reactor still includes supporting component 4, supporting component 4 includes base 41 and support frame 42, base 41 set up in the bottom of reaction box 11 is used for fixing reaction box 11, support frame 42 set up in base 41's bottom is used for supporting base 41 reaches reaction box 11.

The utility model provides an in quantity, this reactor still includes oxygen content detector 5, oxygen content detector 5 set up in 11 bottoms of reaction box for detect and flow through the oxygen content of 11 liquid of reaction box.

The utility model provides an embodiment, wherein the internal diameter and height of the reaction box are respectively 6cm x 70cm, the height of the packed activated carbon particle layer is 67cm, the particle size of the activated carbon particles is 2.0-3.2mm, the total volume of the packed area of the reactor is 1.9L, the water volume which can be accommodated after the reactor is filled with the particle activated carbon is 920mL, and the height of each sampling port is 6.3cm, 19.0cm, 30.5cm and 42.5cm from bottom to top in sequence; taking the immersion height of 30.5cm, the immersion/non-immersion ratio of 1:1.11, the treated water amount of 1.58L/d, the pump speed of 3.0rpm, the COD of the inlet water of 370 +/-10 mg/L, the concentration of sodium dodecyl benzene sulfonate (LAS) of 70 +/-10 mg/L, the concentration of Total Nitrogen (TN) of 10 +/-1.0 mg/L and the pH value of the inlet water of 7.00 +/-0.10; inoculating the residual sludge in the secondary sedimentation tank of the urban sewage plant to the reactor, starting the reactor, performing trial operation, observing the surface of the granular activated carbon, and after a biofilm is formed preliminarily, enabling the reactor to enter a continuous flow operation stage, maintaining the hydraulic retention time at 6.7h, starting sampling analysis, and after the operation is stable, maintaining the COD removal rate of the effluent of the reactor at more than 95%, the LAS removal rate at more than 98%, the TN removal rate at more than 85%, the pH at 8.0-8.3, and the DO concentration in the reactor at 0.84 +/-0.02 mg/L.

The utility model provides an operating principle of embodiment does: when the reactor is operated, the assembled reactor is connected with the ash water through a water inlet pump, a water inlet pipe on an end cover of the reaction box is connected with a water outlet of the water pump, the ash water containing pollutants such as surfactant and the like is provided with power by the water inlet pump and is sent into a water distributor main body in the reaction box through the water inlet pipe, the ash water is uniformly distributed to the surface of the active carbon particle layer from a water distribution port and gradually flows downwards, the pollutants in the ash water are adsorbed by the particle active carbon along the way and are assimilated and utilized or degraded by microorganisms in the reaction box, external air enters the reaction box from an air inlet hole without an aeration device to provide oxygen, the ash water is fully contacted with the air in the process of flowing from top to bottom in an empty area to complete in-situ automatic oxygenation, a water outlet pipe of the reaction box is connected with a water outlet hopper through a water inlet hose, so that the whole device forms a communicating vessel, and the liquid level in the reaction box can be controlled through the communicating vessel principle, the reaction box is provided with an aerobic zone, an anoxic zone and an anaerobic zone from top to bottom (the non-immersed zone is the aerobic zone, the upper part of the immersed zone is the anoxic zone, and the bottom of the immersed zone is the anaerobic zone), pollutants in the ash water are gradually reduced along the way, and the purified water overflows from a water outlet of the water outlet hopper and is discharged after reaching the standard without backflow.

The above description is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention should be covered by the present invention.

Claims

1. A biological activated granular activated carbon dynamic membrane reactor, comprising:

the sliding assembly comprises a sliding block, a water outlet hopper and a water inlet hose, wherein the sliding block is connected to the sliding rail in a sliding mode, the water outlet hopper is fixed to the sliding block, the bottom of the sliding block and the side wall of the sliding block are respectively provided with a water inlet and a water outlet, one end of the water inlet hose is connected to the water inlet, the other end of the water inlet hose is connected to the water outlet in a detachable fixed connection mode, and the water outlet is used for adjusting the water level of the reaction box.

2. The bioactivated granular activated carbon dynamic membrane reactor of claim 1 wherein: the water distributor is characterized by further comprising an end cover, wherein the end cover is detachably and fixedly connected with the opening of the reaction box, the end cover is provided with a fixing hole for the water inlet pipe to penetrate through, and is used for supporting and fixing the water distributor main body, and the end cover is further provided with at least one air inlet hole.

3. The bioactivated granular activated carbon dynamic membrane reactor of claim 2 wherein: the quantity of inlet port is a plurality of, and is a plurality of the inlet port is the circumference array and distributes.

4. The bioactivated granular activated carbon dynamic membrane reactor of claim 1 wherein: the reactor comprises a reaction box, and is characterized by further comprising a supporting component, wherein the supporting component comprises a base and a supporting frame, the base is arranged at the bottom of the reaction box and used for fixing the reaction box, and the supporting frame is arranged at the bottom of the base and used for supporting the base.

5. The bioactivated granular activated carbon dynamic membrane reactor of claim 1 wherein: the device also comprises an oxygen content detector, wherein the oxygen content detector is arranged at the bottom of the reaction box and is used for detecting the oxygen content of the liquid flowing through the reaction box.

6. The bioactivated granular activated carbon dynamic membrane reactor of claim 1 wherein: the reaction box is cylindrical.

7. The bioactivated granular activated carbon dynamic membrane reactor of claim 6 wherein: the side wall of the reaction box is provided with a plurality of sampling ports at intervals along the vertical direction.

8. The bioactivated granular activated carbon dynamic membrane reactor of claim 1 wherein: the water outlet pipe is characterized by further comprising a control valve, and the control valve is arranged on the water outlet pipe.

9. The bioactivated granular activated carbon dynamic membrane reactor of claim 1 wherein: the activated carbon layer is an activated carbon particle layer.

10. The bioactivated granular activated carbon dynamic membrane reactor of claim 7 wherein: the reaction box is a transparent reaction box so as to observe the reaction state in the reaction box.