CN216273622U - micro-electrolysis-MBR (membrane bioreactor) coupling technology interconnected laboratory wastewater treatment equipment - Google Patents

Abstract

The utility model relates to the technical field of wastewater treatment, in particular to laboratory wastewater treatment equipment interconnected by a micro-electrolysis-MBR coupling technology. The utility model adopts the micro-electrolysis device and the MBR membrane biological reaction device to be matched for purifying the wastewater in the laboratory, and the wastewater enters the MBR membrane biological reaction device to be easily degraded further after being subjected to micro-electrolysis treatment by the micro-electrolysis device; in addition, the second driving motor drives the rotary drum to rotate, so that the micro-electrolysis filler in the rotary drum is fully contacted with the wastewater and oxygen in the air introduced into the rotary drum, and the micro-electrolysis reaction is accelerated; a driving motor drives the roller to rotate, so that the stirring plate rotates along with the roller, the spherical floating body makes aeration bubbles finer under the collision and shearing action of water, the utilization rate of oxygen is increased, and the efficiency of treating wastewater is improved.

Description

micro-electrolysis-MBR (membrane bioreactor) coupling technology interconnected laboratory wastewater treatment equipment

Technical Field

The utility model relates to the technical field of wastewater treatment, in particular to laboratory wastewater treatment equipment interconnected by a micro-electrolysis-MBR coupling technology.

Background

The untreated laboratory wastewater is discharged wantonly to cause environmental pollution, and the treatment equipment for laboratory wastewater treatment at present has poor wastewater treatment capacity and low technical level, can only perform simple treatment on the laboratory wastewater, and is difficult to fully degrade the wastewater.

The above background disclosure is only for the purpose of assisting understanding of the concept and technical solution of the present invention and does not necessarily belong to the prior art of the present patent application, and should not be used for evaluating the novelty and inventive step of the present application in the case that there is no clear evidence that the above content is disclosed at the filing date of the present patent application.

SUMMERY OF THE UTILITY MODEL

The present invention is directed to solving the above problems by providing a laboratory wastewater treatment facility interconnected by microelectrolysis-MBR coupling technology.

In order to achieve the purpose, the utility model adopts the technical scheme that: a kind of little electrolysis-MBR coupling technology interconnected laboratory effluent treatment facility, including supporting seat, cylinder stirring apparatus, little electrolytic device, MBR membrane biological reaction unit, first aeration apparatus and second aeration apparatus;

the supporting seat comprises a bottom plate, two supporting frames vertically arranged at the left end and the right end of the bottom plate, and a first cover body and a second cover body which are correspondingly connected and fixed on the two supporting frames, the roller stirring device comprises a roller and a first driving mechanism for driving the roller to rotate, the first cover body is arranged at the left end of the roller in a covering manner, the second cover body is arranged at the right end of the roller in a covering manner, joints of the first cover body and the second cover body with the two ends of the roller are sealed by a sealing device, and an adsorption filter plate and a stirring plate are attached to the inner wall of the roller;

the micro-electrolysis device comprises a rotary drum, micro-electrolysis filler arranged in the rotary drum and a second driving mechanism for driving the rotary drum to rotate, wherein the rotary drum comprises a drum body, filter cloth and a titanium net;

the second driving mechanism comprises a fixed plate fixedly connected with the second cover body, a second driving motor fixed on the fixed plate, a first gear fixedly connected with an output shaft of the second driving motor, an air guide rotating shaft rotatably connected with the fixed plate and the second cover body, and a second gear fixedly connected with the air guide rotating shaft and meshed with the first gear, the air guide rotating shaft is hollow and tubular, the left end of the air guide rotating shaft extends into the roller and is fixedly connected with the right end of the roller body, the air guide rotating shaft is communicated with the inner cavity of the roller body, and the first aeration device is connected to the right end of the air guide rotating shaft;

MBR membrane biological reaction device is equipped with a baffle including fixing the reaction cylinder at a lid inner wall, establishing MBR membrane and a plurality of spherical body in the reaction cylinder, the baffle will a plurality of spherical bodies separate with the MBR membrane, and baffle and reaction cylinder section of thick bamboo wall enclose and establish a reaction chamber, and a plurality of spherical bodies are established in this reaction chamber, and baffle and reaction cylinder section of thick bamboo wall all are equipped with a plurality of through-holes, and every spherical body is inside to grow has anaerobe or facultative aerobe, and the outside growth of spherical body has good fungus of maintaining, and second aeration equipment extends to in the reaction chamber.

Preferably, adsorption filtration board and stirring board are along cylinder circumference staggered arrangement, and adsorption filtration board's material is active carbon.

Preferably, the first driving mechanism comprises a first rotating gearwheel sleeved and fixed on the outer wall of the middle of the roller, a first driving motor fixed on the bottom plate, and a driving pinion fixed on an output shaft of the first driving motor and in meshing transmission with the first rotating gearwheel.

Preferably, the roller stirring device further comprises two supporting mechanisms matched with the roller, the two supporting mechanisms are arranged close to the left end and the right end of the roller and used for supporting the roller, and each supporting mechanism comprises a rolling ring fixed on the roller, two supporting wheels corresponding to the rolling ring in running fit and two bases fixed on the bottom plate and corresponding to the supporting wheels in running connection.

Preferably, the outer wall of the bottom of the cover body II is provided with an inlet pipe communicated with the inner cavity of the roller, the outer wall of the top of the cover body I is provided with a gas discharge pipe communicated with the inner cavity of the roller, the center of the cover body I is provided with an outlet pipe communicated with the inner cavity of the reaction cylinder, and the outlet pipe is opposite to the MBR membrane in the reaction cylinder.

Preferably, the microelectrolytic filler is an iron-carbon microelectrolytic filler.

Preferably, the second aeration device comprises an aeration fan, an aeration pipeline with one end connected with the aeration fan and a microporous aerator connected with the other end of the aeration pipeline, the aeration pipeline penetrates through the first cover body and extends into the roller, and the microporous aerator penetrates through the wall of the reaction barrel and extends into the reaction cavity.

The utility model adopts the micro-electrolysis device and the MBR membrane biological reaction device to be matched for purifying the wastewater in the laboratory, and the wastewater enters the MBR membrane biological reaction device to be easily degraded further after being subjected to micro-electrolysis treatment by the micro-electrolysis device; in addition, the second driving motor drives the rotary drum to rotate when working, so that the micro-electrolysis filler in the rotary drum is fully contacted with the wastewater and oxygen in the air introduced into the rotary drum, and the micro-electrolysis reaction is accelerated; the driving motor drives the roller to rotate during operation, so that the stirring plate rotates along with the roller, the spherical floating body makes aeration bubbles finer under the collision and shearing action of water, the utilization rate of oxygen is increased, and the efficiency of purifying wastewater is improved.

Drawings

The utility model is further illustrated with reference to the following figures and examples.

FIG. 1 is a schematic diagram of the structure of a micro-electrolysis-MBR coupled technology interconnected laboratory wastewater treatment facility provided by the preferred embodiment of the present invention;

FIG. 2 is a schematic perspective view of the laboratory wastewater treatment plant of FIG. 1;

FIG. 3 is a schematic cross-sectional view of the drum of FIG. 1;

FIG. 4 is an enlarged view of portion A of FIG. 2;

FIG. 5 is a schematic diagram of the structure of the micro-electrolysis device of FIG. 1;

FIG. 6 is a schematic cross-sectional view of the drum of FIG. 5;

in the figure: 11. a base plate; 12. a support frame; 13. a first cover body; 131. a gas discharge pipe; 132. an outlet pipe; 14. a second cover body; 141. an inlet tube; 21. a drum; 22. a first driving mechanism; 221. rotating the bull gear; 222. driving a motor I; 223. a drive pinion; 23. a support mechanism; 231. rolling a ring; 232. a support wheel; 233. a base; 24. an adsorption filter plate; 25. a stirring plate; 31. a rotating drum; 311. a barrel; 312. a cylinder cover; 313. filtering cloth; 314. a titanium mesh; 315. a water pore; 32. a second driving mechanism; 321. a fixing plate; 3211. fixing a column; 322. a second driving motor; 323. a first gear; 324. an air guide rotating shaft; 325. a second gear; 33. micro-electrolysis filler; 400. a through hole; 41. a reaction cylinder; 42. a spherical float; 43. MBR membrane; 44. an end cap; 45. a partition plate; 46. a reaction chamber; 5. a first aeration device; 51. a first blower; 52. a gas delivery pipe; 61. an O-shaped sealing ring; 62. a ball bearing; 63. a retainer ring; 7. a second aeration device; 71. an aeration fan; 72. an aeration pipe; 73. a microporous aerator.

Detailed Description

The utility model will now be described in further detail with reference to the accompanying drawings and examples, which are simplified schematic drawings and illustrate only the basic structure of the utility model in a schematic manner, and thus show only the constituents relevant to the utility model.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.

As shown in fig. 1 to 6, a preferred embodiment of the present invention provides a micro-electrolysis-MBR coupled technology interconnected laboratory wastewater treatment equipment, which comprises a supporting base, a drum stirring device, a micro-electrolysis device, an MBR membrane biological reaction device, a first aeration device 5 and a second aeration device 7.

The supporting seat comprises a bottom plate 11, two supporting frames 12 vertically arranged at the left end and the right end of the bottom plate 11, and a first cover body 13 and a second cover body 14 which are correspondingly connected and fixed on the two supporting frames 12. Specifically, the bottom plate 11, the support frames 12, the first cover 13 and the second cover 14 are made of steel plates, the two support frames 12 are fixed to the left and right ends of the bottom plate 11 through screw connections, and the first cover 13 and the second cover 14 are correspondingly fixed to the left and right support frames 12 through screws.

The drum stirring device comprises a drum 21, a first driving mechanism 22 matched with the drum 21 and two supporting mechanisms 23. The first cover body 13 is arranged at the left end of the roller 21 in a covering mode, the second cover body 14 is arranged at the right end of the roller 21 in a covering mode, joints of the first cover body 13 and the second cover body 14 and two ends of the roller 21 are sealed through a sealing device, the sealing device comprises an O-shaped sealing ring 61, a ball bearing 62 and a retainer ring 63, sealing is achieved through the O-shaped sealing ring 61, and the ball bearing 62 plays the roles of supporting, auxiliary rotating and axial positioning. The inner wall of the circumference of the roller 21 is adhered with an adsorption filter plate 24 and a stirring plate 25, the adsorption filter plate 24 and the stirring plate 25 are arranged along the circumference of the roller 21 in a staggered way, and the adsorption filter plate 24 is made of activated carbon and is used for adsorbing and filtering pollutants in the wastewater entering the roller 21; the agitation plate 25 rotates with the drum 21 to agitate the wastewater in the drum 21.

The first driving mechanism 22 is used for driving the roller 21 to rotate and comprises a first rotating gearwheel 221, a first driving motor 222 and a driving pinion 223, wherein the first rotating gearwheel 221 is sleeved on the outer wall of the middle of the roller 21, the first driving motor 222 is fixed on the bottom plate 11, and the driving pinion 223 is fixed on an output shaft of the first driving motor 222 and is in meshing transmission with the first rotating gearwheel 221; when the first driving motor 222 is operated, the first driving pinion 223 drives the rotary gearwheel 221 and the drum 21 to rotate relative to the first cover body 13 and the second cover body 14, and the stirring plate 25 rotates along with the drum 21 to stir the wastewater in the drum 21.

Two supporting mechanism 23 are close to the left and right both ends of cylinder 21 and set up for supporting cylinder 21, and every supporting mechanism 23 is fixed on bottom plate 11 and is corresponded two bases 233 that are connected with supporting wheel 232 rotation including the cover establish a rolling circle 231, tandem correspond and rolling circle 231 normal running fit's two supporting wheels 232 and tandem on cylinder 21.

The micro-electrolysis device comprises a rotary drum 31, micro-electrolysis filler 33 arranged in the rotary drum 31 and a second driving mechanism 32 for driving the rotary drum 31 to rotate.

The rotary drum 31 comprises a drum body 311, a drum cover 312, filter cloth 313 and a titanium net 314, the drum body 311 and the drum cover 312 are made of polytetrafluoroethylene, the wall thickness of the drum body 311 is 2-20 mm, the micro-electrolysis filler 33 is arranged in an inner cavity of the drum body 311, the micro-electrolysis filler 33 is an iron-carbon micro-electrolysis filler which is formed by sintering scrap iron, carbon and a catalyst, a plurality of water holes 315 communicated with the inner cavity of the drum body 311 are formed in the side wall of the drum body 311, wastewater enters the inner cavity of the drum body 311 along the water holes 315, and the aperture of the water holes 315 is smaller than the particle size of the micro-electrolysis filler 33; the left end of the cylinder body 311 is open, the cylinder cover 312 is arranged at the left end opening of the cylinder body 311, the cylinder cover 312 and the cylinder body 311 can be connected in a threaded mode, disassembly and assembly are convenient, the cylinder cover 312 is opened, the micro-electrolysis filler 33 in the cylinder body 311 can be replaced and supplemented, and flocculation and precipitation generated by micro-electrolysis reaction are removed. The filter cloth 313 is hydrophilic non-woven fabrics, the filter cloth 313 is attached and fixed on the inner wall of the cylinder 311, the titanium mesh 314 is arranged on the inner side of the filter cloth 313, and the double filtration is carried out on the wastewater through the filter cloth 313 and the titanium mesh 314.

The second driving mechanism 32 includes a fixed plate 321, a second driving motor 322 fixed on the fixed plate 321, a first gear 323 connected and fixed with an output shaft of the second driving motor 322, an air guide rotating shaft 324 rotatably connected to the fixed plate 321, and a second gear 325 connected and fixed on the air guide rotating shaft 324 and engaged with the first gear 323. Specifically, the fixing plate 321 is a rectangular stainless steel plate, and four corners of the inner wall of the fixing plate are welded and fixed to the outer wall of the second cover 14 through four fixing posts 3211; the second driving motor 322 is fixed on the outer side of the fixing plate 321 through screws, the first gear 323 and the second gear 325 are arranged on the inner side of the fixing plate 321, and an output shaft of the second driving motor 322 is welded and fixed with the first gear 323; the second gear 325 is fixed on the air guide rotating shaft 324 by welding, the air guide rotating shaft 324 is hollow tube-shaped, the air guide rotating shaft 324 is rotatably connected with the fixing plate 321 and the second cover body 14 by a bearing, the left end of the air guide rotating shaft 324 extends into the roller 21 and is fixedly connected with the right end of the cylinder body 311, and the air guide rotating shaft 324 is communicated with the inner cavity of the cylinder body 311. The first aeration device 5 comprises a first blower 51 and a gas pipe 52 connected with the first blower 51, wherein one end of the gas pipe 52 is connected with the first blower 51, and the other end is connected with the right end of the gas guide rotating shaft 324.

The MBR membrane biological reaction device comprises a reaction cylinder 41, a plurality of spherical floating bodies 42 arranged in the reaction cylinder 41 and an MBR membrane 43. The left end of the reaction cylinder 41 is fixed on the inner wall of the first cover body 13 through screws, an end cover 44 is arranged at an opening at the right end of the reaction cylinder 41, and the end cover 44 and the right end of the reaction cylinder 41 can be connected through threads, so that the reaction cylinder is convenient to detach and install. A partition plate 45 is arranged in the reaction cylinder 41, the partition plate 45 separates the plurality of spherical floating bodies 42 from the MBR membrane 43, the plurality of spherical floating bodies 42 are arranged in a reaction cavity 46 surrounded by the partition plate 45, the cylinder wall of the reaction cylinder 41 and the end cover 44, the partition plate 45, the cylinder wall of the reaction cylinder 41 and the end cover 44 are all provided with a plurality of through holes 400, and the aperture of each through hole 400 is smaller than the diameter of each spherical floating body 42.

Anaerobic bacteria or facultative bacteria grow inside each spherical floating body 42, aerobic bacteria grow outside each spherical floating body 42, the density of each spherical floating body 42 is close to that of water, and in the aeration process, the spherical floating bodies 42 and the water are in a complete mixing state, and the spherical floating bodies 42 enable air bubbles to be finer under the collision and shearing action of the water, so that the utilization rate of oxygen is increased. In addition, each spherical floating body 42 has different biological species inside and outside, anaerobic bacteria or facultative bacteria grow inside, and aerobic bacteria grow outside, so that each spherical floating body 42 is a micro-reactor, and nitrification reaction and denitrification reaction exist at the same time, thereby improving the treatment effect.

The second aeration device 7 comprises an aeration fan 71, an aeration pipeline 72 with one end connected with the aeration fan 71, and a microporous aerator 73 connected with the other end of the aeration pipeline 72. The aeration fan 71 is fixed on the bottom plate 11 of the supporting seat through screws, the aeration pipeline 72 passes through the first cover body 13 and extends into the drum 21, and the microporous aerator 73 passes through the drum wall of the reaction drum 41 and extends into the reaction cavity 46.

Preferably, the outer wall of the bottom of the second cover body 14 is provided with an inlet pipe 141 communicated with the inner cavity of the roller 21, and the laboratory wastewater enters the inner cavity of the roller 21 from the inlet pipe 141; the outer wall of the top of the first cover body 13 is provided with a gas discharge pipe 131 communicated with the inner cavity of the roller 21, and gas generated in the wastewater purification process is discharged through the gas discharge pipe 131; an outlet pipe 132 communicated with the inner cavity of the reaction cylinder 41 is arranged in the center of the cover body I13, the outlet pipe 132 is opposite to the MBR membrane 43 in the reaction cylinder 41, and the laboratory wastewater is purified and then is discharged from the outlet pipe 132; the inlet pipe 141 and the outlet pipe 132 may be connected to a pump for pumping the wastewater into the drum 21 or pumping the purified wastewater out. The inner wall of the first cover 13 near the outlet pipe 132 can be provided with a detector for detecting pollutants in the wastewater, so as to ensure that the wastewater reaches the discharge standard after being purified and then is discharged from the outlet pipe 132.

When the device is used, the wastewater enters the inner cavity of the roller 21 from the inlet pipe 141 and then enters the inner cavity of the roller 311 along the water holes 315 on the roller 311, air generated when the first air blower 51 works enters the inner cavity of the roller 311 along the air guide rotating shaft 324, the micro-electrolysis filler 33 in the roller 311, the wastewater and oxygen in the air introduced into the roller 311 generate iron-carbon micro-electrolysis reaction, iron in the micro-electrolysis filler 33 is corroded to lose electrons and become ferrous ions, the ferrous ions have coagulation effect and attract pollutants with weak negative charges in the wastewater in an opposite way, and relatively stable flocs (also called iron mud) are formed; under the condition of oxygenation, ferric ions generated by oxidizing ferrous ions are gradually hydrolyzed to generate ferric hydroxide colloid flocculating agents with large polymerization degrees, and the ferric hydroxide colloid flocculating agents can further adsorb and agglomerate pollutants in water, so that the purification effect on the wastewater is enhanced; in addition, hydrogen ions obtain electrons and become hydrogen, the hydrogen destroys macromolecular chromophoric groups or color-assisting groups formed by complexing in the wastewater, macromolecular substances are decomposed into micromolecular intermediates, certain substances which are difficult to be biochemically degraded in the wastewater are converted into substances which are easy to biochemically degrade, the COD content of the wastewater is further reduced, and the wastewater after micro-electrolysis flows out along the water holes 315 of the cylinder body 311 and is diffused into the inner cavity of the roller 21. Then, the wastewater enters the reaction cavity 46 of the MBR membrane biological reaction device along the through hole 400, and is aerated into the reaction cavity 46 through the second aeration device 7, different biological species are respectively arranged inside and outside the spherical floating body 42 in the reaction cavity 46, anaerobic bacteria or facultative bacteria are arranged inside the spherical floating body 42, good bacteria are arranged outside the spherical floating body, and each spherical floating body 42 is a micro-reactor, so that the nitrification reaction and the denitrification reaction are carried out simultaneously. Finally, the wastewater after purification treatment is filtered by the MBR membrane 43, and the standard-reaching water is discharged through the outlet pipe 132. Meanwhile, when the second driving motor 322 works, the air guide rotating shaft 324 and the rotary drum 31 are driven to rotate, the rotary drum 31 enables the micro-electrolysis filler 33 in the drum 311 to be fully contacted with the wastewater and oxygen in the air introduced into the drum 311, the micro-electrolysis reaction is accelerated, in addition, the rotary drum 31 enables the micro-electrolysis filler 33 not to be easily passivated and hardened, and frequent replacement of the micro-electrolysis filler 33 is avoided; in addition, the first driving motor 222 drives the rotating large gear 221 and the roller 21 to rotate relative to the first cover body 13 and the second cover body 14 through the driving small gear 223, so that the stirring plate 25 rotates along with the roller 21 to stir the wastewater in the roller 21, the wastewater rolls in the roller 21 and enters the reaction cavity 46 along the through hole 400, the spherical floating body 42 and the water are in a complete mixing state, the spherical floating body 42 makes aeration bubbles finer under the collision and shearing action of the water, the utilization rate of oxygen is increased, and the efficiency of wastewater purification treatment by the MBR membrane bioreaction device is improved. Understandably, the rotation direction (counterclockwise or clockwise) and the rotation speed of the drum 31 and the drum 21 can be adjusted as needed.

The utility model adopts the micro-electrolysis device and the MBR membrane biological reaction device to be matched for purifying the wastewater in the laboratory, and the wastewater enters the MBR membrane biological reaction device to be easily degraded further after being subjected to micro-electrolysis treatment by the micro-electrolysis device; in addition, when the second driving motor 322 works, the rotating drum 31 is driven to rotate, so that the micro-electrolysis filler 33 in the drum body 311 is fully contacted with the wastewater and oxygen in the air introduced into the drum body 311, and the micro-electrolysis reaction is accelerated; when the first driving motor 222 works, the roller 21 is driven to rotate, the stirring plate 25 rotates along with the roller 21, and the spherical floating body 42 makes aeration bubbles finer under the collision and shearing action of water, so that the utilization rate of oxygen is increased, and the efficiency of purifying wastewater is improved.

The above descriptions of the embodiments of the present invention, which are not related to the above description, are well known in the art, and may be implemented by referring to the well-known technologies.

In light of the foregoing description of the preferred embodiments of the present invention, it is to be understood that various changes and modifications may be made by those skilled in the art without departing from the spirit and scope of the utility model. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.

Claims (7)

1. The utility model provides an interconnected laboratory waste water treatment equipment of little electrolysis-MBR coupling technique which characterized in that: comprises a supporting seat, a roller stirring device, a micro-electrolysis device, an MBR membrane biological reaction device, a first aeration device and a second aeration device;

the supporting seat comprises a bottom plate, two supporting frames vertically arranged at the left end and the right end of the bottom plate, and a first cover body and a second cover body which are correspondingly connected and fixed on the two supporting frames, the roller stirring device comprises a roller and a first driving mechanism for driving the roller to rotate, the first cover body is arranged at the left end of the roller in a covering manner, the second cover body is arranged at the right end of the roller in a covering manner, joints of the first cover body and the second cover body with the two ends of the roller are sealed by a sealing device, and an adsorption filter plate and a stirring plate are attached to the inner wall of the roller;

the micro-electrolysis device comprises a rotary drum, micro-electrolysis filler arranged in the rotary drum and a second driving mechanism for driving the rotary drum to rotate, wherein the rotary drum comprises a drum body, filter cloth and a titanium net;

the second driving mechanism comprises a fixed plate fixedly connected with the second cover body, a second driving motor fixed on the fixed plate, a first gear fixedly connected with an output shaft of the second driving motor, an air guide rotating shaft rotatably connected with the fixed plate and the second cover body, and a second gear fixedly connected with the air guide rotating shaft and meshed with the first gear, the air guide rotating shaft is hollow and tubular, the left end of the air guide rotating shaft extends into the roller and is fixedly connected with the right end of the roller body, the air guide rotating shaft is communicated with the inner cavity of the roller body, and the first aeration device is connected to the right end of the air guide rotating shaft;

MBR membrane biological reaction device is equipped with a baffle including fixing the reaction cylinder at a lid inner wall, establishing MBR membrane and a plurality of spherical body in the reaction cylinder, the baffle will a plurality of spherical bodies separate with the MBR membrane, and baffle and reaction cylinder section of thick bamboo wall enclose and establish a reaction chamber, and a plurality of spherical bodies are established in this reaction chamber, and baffle and reaction cylinder section of thick bamboo wall all are equipped with a plurality of through-holes, and every spherical body is inside to grow has anaerobe or facultative aerobe, and the outside growth of spherical body has good fungus of maintaining, and second aeration equipment extends to in the reaction chamber.

2. The micro-electrolysis-MBR coupled technology interconnected laboratory wastewater treatment plant according to claim 1, characterized in that: adsorption filter and stirring board are along cylinder circumference staggered arrangement, and adsorption filter's material is active carbon.

3. The micro-electrolysis-MBR coupled technology interconnected laboratory wastewater treatment plant according to claim 1, characterized in that: the first driving mechanism comprises a rotary large gear fixed on the outer wall of the middle of the roller in a sleeved mode, a first driving motor fixed on the bottom plate and a driving small gear fixed on an output shaft of the first driving motor and in meshed transmission with the rotary large gear.

4. The micro-electrolysis-MBR coupled technology interconnected laboratory wastewater treatment plant according to claim 3, characterized in that: the roller stirring device further comprises two supporting mechanisms matched with the roller, the two supporting mechanisms are arranged close to the left end and the right end of the roller and used for supporting the roller, and each supporting mechanism comprises a rolling ring fixed on the roller, two supporting wheels in rotating fit with the rolling ring and two bases which are fixed on the bottom plate and are in rotating connection with the supporting wheels.

5. The micro-electrolysis-MBR coupled technology interconnected laboratory wastewater treatment plant according to claim 1, characterized in that: the outer wall of the bottom of the cover body II is provided with an inlet pipe communicated with the inner cavity of the roller, the outer wall of the top of the cover body I is provided with a gas discharge pipe communicated with the inner cavity of the roller, the center of the cover body I is provided with an outlet pipe communicated with the inner cavity of the reaction cylinder, and the outlet pipe faces the MBR membrane in the reaction cylinder.

6. The micro-electrolysis-MBR coupled technology interconnected laboratory wastewater treatment plant according to claim 1, characterized in that: the micro-electrolysis filler is an iron-carbon micro-electrolysis filler.

7. The micro-electrolysis-MBR coupled technology interconnected laboratory wastewater treatment plant according to claim 1, characterized in that: the second aeration device comprises an aeration fan, an aeration pipeline with one end connected with the aeration fan and a microporous aerator connected with the other end of the aeration pipeline, the aeration pipeline penetrates through the cover body I and extends into the roller, and the microporous aerator penetrates through the wall of the reaction barrel and extends into the reaction cavity.

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