CN114573106A - Upflow type electric auxiliary anaerobic-aerobic coupling biomembrane reactor - Google Patents
Upflow type electric auxiliary anaerobic-aerobic coupling biomembrane reactor Download PDFInfo
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- CN114573106A CN114573106A CN202210289824.XA CN202210289824A CN114573106A CN 114573106 A CN114573106 A CN 114573106A CN 202210289824 A CN202210289824 A CN 202210289824A CN 114573106 A CN114573106 A CN 114573106A
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/30—Aerobic and anaerobic processes
- C02F3/301—Aerobic and anaerobic treatment in the same reactor
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2203/00—Apparatus and plants for the biological treatment of water, waste water or sewage
- C02F2203/006—Apparatus and plants for the biological treatment of water, waste water or sewage details of construction, e.g. specially adapted seals, modules, connections
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
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Abstract
The invention discloses an upflow type electrically-assisted anaerobic-aerobic coupled biofilm reactor, which comprises a reaction pipe, wherein the reaction pipe is sequentially provided with an anaerobic chamber, an aeration chamber and an aerobic chamber from bottom to top, the liquid outlet end of the anaerobic chamber is communicated with the liquid inlet end of the aerobic chamber through the aeration chamber, an air supply part is arranged in the aeration chamber and comprises an air supply piece and an air injection piece, the air supply piece is positioned below the air injection piece and communicated with the air injection piece, the air outlet end of the aeration chamber is communicated with the air inlet end of the aerobic chamber through the air injection piece, and the air supply piece is in transmission connection with the air injection piece through a rotating rod; and the carrier part is arranged in the aerobic chamber and comprises a carrier frame. The invention can realize the problems of membrane pollution and cavity blockage caused by filler stacking in the aerobic chamber, simultaneously improve the biodegradability of the anaerobic chamber and the aerobic chamber, improve the aeration effect of the aerobic chamber, reduce the quantity of oxygen entering the anaerobic chamber and further improve the reaction rate of the reactor.
Description
Technical Field
The invention relates to the technical field of sewage treatment, in particular to an upflow electric auxiliary anaerobic-aerobic coupled biofilm reactor.
Background
In recent years, personal care products have been extensively studied as a new emerging contaminant. However, due to the high consumption and stable chemical structure, it is often detected in sewage treatment plants, surface waters and ground waters, which, despite their low concentration, can negatively affect the water environment and ecological balance and even cause pollution of the drinking water. The traditional sewage treatment method for removing organic matters mainly comprises biological treatment technologies such as an activated sludge method, a biofilm method and the like, but residual medicines in pharmaceutical wastewater can inhibit the growth and activity of microorganisms in the traditional biological method and influence the removal effect of the organic matters in the sewage. On the other hand, a simple aerobic or anaerobic system cannot achieve complete degradation of organic matters, and an aerobic bioreactor and an anaerobic bioreactor need to be combined. However, because of their chemical structural stability, the removal efficiency of these drugs in microbial degradation seems to be still unsatisfactory, and therefore it is necessary to develop a new method for improving the removal of organic matter from wastewater.
The bioelectrochemical reactors (BERs) are systems formed by the interaction of microorganisms, electrodes and pollutants, and because the biocatalysts have higher catalytic efficiency and specificity compared with the existing chemical catalysts, the microorganisms attached to the electrodes can accelerate the electron transfer between the electrodes and the pollutants, thereby accelerating the degradation of the pollutants. The basic principle is that the electrode and the microorganism generate a synergistic effect, the resistance of the microorganism to the external environment pressure is improved by means of electrical stimulation, so that the metabolic activity of the difficultly degraded pollutant with biotoxicity is improved, functional microorganisms are enriched by accelerating the transfer of electrons, the microbial community structure is improved, and the removal effect of the difficultly degraded pollutant is further improved. Due to these characteristics, the bioelectrochemical reactor has received attention from global scholars in recent years, and the performance of the operation thereof has been improved. Among them, the bioelectrochemistry anaerobic-aerobic coupled reactor (AO-UBERs) has the most practical potential.
However, the conventional bioelectrochemistry anaerobic-aerobic coupling system also has some disadvantages, firstly, microorganisms in an aerobic zone grow fast, so that membrane pollution and cavity blockage are caused, the aerobic zone needs to be cleaned frequently to ensure normal use of the system, and secondly, the conventional system cannot remove complex organic matters in sewage, so that the sewage treatment effect is influenced. In addition, the aeration effect to the aerobic zone in the prior art is poor, and meanwhile, due to factors such as structural problems, when the aerobic zone is subjected to aeration treatment, oxygen easily enters the anaerobic zone, so that the anaerobic zone cannot normally treat wastewater, and therefore an upflow type electric auxiliary anaerobic-aerobic coupled biofilm reactor is urgently needed to solve the problems.
Disclosure of Invention
The invention aims to provide an up-flow type electrically-assisted anaerobic-aerobic coupled biofilm reactor, which solves the problems in the prior art, can realize the problems of membrane pollution and cavity blockage caused by filler stacking in an aerobic chamber, simultaneously improves the biodegradability of the anaerobic chamber and the aerobic chamber, improves the aeration effect of the aerobic chamber, reduces the quantity of oxygen entering the anaerobic chamber and further improves the reaction rate of the reactor.
In order to achieve the purpose, the invention provides the following scheme: the invention provides an up-flow type electric auxiliary anaerobic-aerobic coupled biofilm reactor, which comprises a reaction pipe, wherein the reaction pipe is sequentially provided with an anaerobic chamber, an aeration chamber and an aerobic chamber from top to bottom, the liquid outlet end of the anaerobic chamber is communicated with the liquid inlet end of the aerobic chamber through the aeration chamber,
the aeration chamber comprises an aeration chamber body, an air supply part and a gas spraying part, wherein the aeration chamber body is arranged in the aeration chamber body, the air supply part is arranged below the gas spraying part and communicated with the gas spraying part, the gas outlet end of the aeration chamber body is communicated with the gas inlet end of the aerobic chamber body through the gas spraying part, and the gas supply part is in transmission connection with the gas spraying part through a rotating rod;
the carrier part is arranged in the aerobic chamber and comprises a carrier frame, the carrier frame is detachably connected with the reaction tube and the rotating rod respectively, and a plurality of carrier blocks are arranged in the anaerobic chamber;
and the power supply part is arranged outside the reaction pipe, the anode of the power supply part is electrically connected with the aerobic chamber, and the cathode of the power supply part is electrically connected with the anaerobic chamber.
Preferably, the reaction tube inner wall fixedly connected with the first support plate and the second support plate, the first support plate is located above the second support plate, the aeration chamber is separated from the anaerobic chamber and the aerobic chamber through the first support plate and the second support plate, the gas supply member comprises a gas supply box fixedly connected with the top end of the second support plate, a rotating blade is arranged in the gas supply box, the rotating rod penetrates through the gas supply box and the rotating blade, the rotating rod is rotatably connected with the gas supply box, the rotating rod is fixedly connected with the rotating blade, the side wall of the gas supply box is communicated with an oxygen inlet tube, and the top end of the gas supply box is communicated with the gas injection member.
Preferably, a plurality of tip protrusions are fixedly connected to the side walls of the rotating blades, and the tip protrusions are arranged corresponding to the air outlet end of the oxygen inlet pipe.
Preferably, the air injection part comprises an air injection cylinder fixedly connected with the top end of the second support plate, the air supply box is located in the air injection cylinder, the inner wall of the air injection cylinder is fixedly connected with a first air stone, the air supply box is communicated with the first air stone through a communicating pipe, the air outlet end of the air injection cylinder is provided with a second air stone, the second air stone penetrates through the first support plate, the second air stone is fixedly connected with the rotating rod, and the second air stone is rotatably connected with the first support plate.
Preferably, the second gas stone aperture is smaller than the first gas stone aperture, and the second gas stone air outlet is obliquely arranged.
Preferably, the spraying cylinder is of a circular truncated cone structure, and the diameter of the end part, close to the first support plate, of the spraying cylinder is smaller than the diameter of the end part, close to the second support plate, of the spraying cylinder.
Preferably, good oxygen room top intercommunication has the overflow room, overflow room intercommunication has the overflow pipe, good oxygen room with the overflow room is separated through the third extension board, the notch cuttype leads to the groove has been seted up on the third extension board, the notch cuttype leads to the inslot and sets up rather than assorted notch cuttlefish, the carrier frame cover is established on the bull stick, just the notch cuttlefish with the connection can be dismantled on the bull stick top.
Preferably, the bottom end of the rotating rod penetrates through a second support plate and extends into the anaerobic chamber, the rotating rod is rotatably connected with the second support plate, and a plurality of stirring plates are fixedly connected to the rotating rod and are all located in the anaerobic chamber.
Preferably, the power supply part comprises a power supply, the aerobic chamber and the anaerobic chamber are electrically connected with the power supply through a conductive plate respectively, the anode of the power supply is electrically connected with the conductive plate positioned in the aerobic chamber, and the cathode of the power supply is electrically connected with the conductive plate positioned in the anaerobic chamber.
Preferably, the first support plate, the second support plate and the third support plate are respectively provided with a circulation port through which waste liquid circulates, and a screen is fixedly connected in the circulation port on the second support plate.
The invention discloses the following technical effects:
1. set up the carrier frame in good oxygen room, for current filler, the condition that filler piles up can not appear in the carrier frame to can not lead to membrane pollution and cavity to block up the problem, and the carrier frame is changed conveniently, and the practicality is high, because the existence of carrier block, improves the biodegradability of anaerobic chamber in addition, and both cooperations finally improve the purifying effect of reactor to waste water.
2. The air feed spare is carried out first shearing with outside supply oxygen, is cuted once more through spouting the air feed spare afterwards for the bubble diminishes, and then improves the aeration effect, and simultaneously, the air feed spare can drive the bull stick and rotate, and the bull stick can drive carrier frame and rotate, makes the carrier frame stir the waste water in the good oxygen room, improves the mixed effect of waste water and microorganism, thereby improves the purifying effect of good oxygen room.
3. Through setting up the gas injection spare, make on the one hand by the comparatively easy entering aerobic chamber of bubble of many times shearing, simultaneously, make the difficult entering anaerobic chamber of bubble, thereby improve aerobic chamber and the microbial living environment in eye anaerobic chamber.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without inventive exercise.
FIG. 1 is a schematic view of the structure of a reactor;
FIG. 2 is an enlarged view of a portion of FIG. 1 at A;
FIG. 3 is an enlarged view of a portion of FIG. 1 at B;
FIG. 4 is an enlarged view of a portion of FIG. 1 at C;
FIG. 5 is a perspective view of the gas supply portion;
the device comprises a reaction tube 1, an anaerobic chamber 2, an aeration chamber 3, an aerobic chamber 4, a rotating rod 5, a carrier frame 6, a first support plate 7, a second support plate 8, an air supply box 9, a rotating blade 10, an oxygen inlet tube 11, a tip bulge 12, a spray cylinder 13, a first air stone 14, a second air stone 15, an overflow chamber 16, an overflow pipe 17, a third support plate 18, a step plate 19, a stirring plate 20, a power supply 21, a conductive plate 22, a screen 23, a flow port 24, a liquid outlet tube 25, a liquid inlet tube 26, an air supply box 27, a one-way valve 28 and a fixing bolt 29.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.
The invention provides an up-flow type electric auxiliary anaerobic-aerobic coupled biofilm reactor, which comprises a reaction pipe 1, wherein the reaction pipe 1 is sequentially provided with an anaerobic chamber 2, an aeration chamber 3 and an aerobic chamber 4 from top to bottom, the liquid outlet end of the anaerobic chamber 2 is communicated with the liquid inlet end of the aerobic chamber 4 through the aeration chamber 3, an air supply part is arranged in the aeration chamber 3 and comprises an air supply part and an air injection part, the air supply part is positioned below the air injection part and communicated with the air injection part, the air outlet end of the aeration chamber 3 is communicated with the air inlet end of the aerobic chamber 4 through the air injection part, and the air supply part is in transmission connection with the air injection part through a rotating rod 5; the carrier part is arranged in the aerobic chamber 4 and comprises a carrier frame 6, the carrier frame 6 is respectively detachably connected with the reaction tube 1 and the rotating rod 5, and a plurality of carrier blocks are arranged in the anaerobic chamber 2; and the power supply part is arranged outside the reaction tube 1, the anode of the power supply part is electrically connected with the aerobic chamber 4, and the cathode of the power supply part is electrically connected with the anaerobic chamber 2.
Waste liquid is by supreme anaerobic chamber 2, aeration chamber 3, good oxygen room 4 of passing through in proper order down, when carrying out aeration treatment to good oxygen room 4, air feed spare starts, provide oxygen in aeration chamber 3, oxygen gets into the gas injection spare after the first shearing of air feed spare, finally get into in the good oxygen room 4 by the gas injection spare, at the during operation of gas feed spare, air feed spare drives bull stick 5 and rotates, bull stick 5 drives carrier frame 6 and rotates, thereby slowly stir the waste liquid in good oxygen room 4, simultaneously because carrier frame 6 is rotatory, make it be difficult for being contaminated. And the power supply part supplies power to enrich microorganisms.
The actual pharmaceutical wastewater or municipal sewage is adopted in the operation process, and the operation mode is an up-flow mode. Namely, the sewage firstly enters the anaerobic chamber 2 (the hydraulic retention time is 24h) to realize the preliminary removal of organic matters. The middle aeration chamber 3 maintains an aerobic environment for the aerobic chamber 4, organic matters enter the aerobic chamber 4 in the next step, the deep removal of the organic matters, the degradation of the organic matters difficult to degrade, the nitrification and denitrification of nitrogen-containing substances and the dephosphorization are realized, and the deep treatment of sewage is realized.
In one embodiment of the invention the aerobic chamber 4 is connected to an effluent conduit 25 for discharging effluent meeting the discharge requirement and the anaerobic chamber 2 is connected to an influent conduit 26 for introducing effluent into the anaerobic chamber 2.
In one embodiment of the present invention, the carrier block is preferably, but not limited to, a conductive biofilm carrier carbon felt block, to which a cathode anaerobic fermentation microorganism is attached to achieve preliminary degradation of organic matter, and the carbon felt block filler particle size is preferably 1cm-2 cm.
In one embodiment of the present invention, the carrier support 6 is preferably, but not limited to, a conductive biofilm carrier carbon brush to which cationic aerobic microorganisms are attached to effect oxidative degradation of organic matter.
Further optimization scheme, first extension board 7 and second extension board 8 of reaction tube 1 inner wall rigid coupling, first extension board 7 is located second extension board 8 top, aeration chamber 3 is separated with anaerobic chamber 2 and aerobic chamber 4 through first extension board 7 and second extension board 8, the air feed spare includes the air feed box 9 with the rigid coupling in 8 tops of second extension board, be provided with rotating vane 10 in the air feed box 9, bull stick 5 passes air feed box 9 and rotating vane 10, and bull stick 5 rotates with air feed box 9 to be connected, bull stick 5 and rotating vane 10 rigid coupling, air feed box 9 lateral wall intercommunication has into oxygen pipe 11, air feed box 9 top and jet-propelled piece intercommunication. The first support plate 7 and the second support plate 8 play a separation role, external oxygen is guided into the gas supply box 9 through the oxygen inlet pipe 11 and strikes the rotating blades 10, so that the rotating blades 10 rotate, and then the oxygen enters the gas injection piece through the top end of the gas supply box 9. The rotating blade 10 rotates to drive the rotating rod 5 to rotate, so that the rotating rod can drive the carrier frame 6 to rotate.
In one embodiment of the present invention, a gas supply box 27 for supplying oxygen is provided outside the reaction tube 1, and the gas supply box 27 is communicated with the gas supply box 9 through the oxygen inlet tube 11.
In another embodiment of the present invention, the gas supply box 9 is connected with two oxygen inlet pipes 11, the two oxygen inlet pipes 11 are respectively connected with the gas supply box 27 through the reaction pipe 1, one oxygen inlet pipe 11 makes the rotating blade 10 rotate clockwise, the other oxygen inlet pipe 11 makes the rotating blade 10 rotate counterclockwise, and the two oxygen inlet pipes 11 are both provided with one-way valves 28. The two oxygen inlet pipes 11 are arranged, and the positions of the two oxygen inlet pipes 11 are different, so that air can be sprayed to different positions of the rotating blades 10, the rotating blades 10 can rotate clockwise and anticlockwise, the purpose of the method is to enable the carrier frame 6 to rotate clockwise and anticlockwise, and the mixing effect of the waste water and the microorganisms is improved. The presence of the check valve 28 prevents oxygen from flowing back from one oxygen inlet tube 11 when the other oxygen inlet tube 11 is in operation.
In a further optimized scheme, a plurality of tip protrusions 12 are fixedly connected to the side walls of the rotating blades 10, and the tip protrusions 12 are arranged corresponding to the air outlet end of the oxygen inlet pipe 11. The tip protrusions 12 are primarily contacted with the oxygen bubbles to primarily shear the oxygen bubbles, so as to improve the aeration effect of the aerobic chamber 4.
Further optimization scheme, jet-propelled piece includes the section of thick bamboo 13 that spouts with 8 top rigid couplings of second extension board, and air feed box 9 is located spouts a section of thick bamboo 13, and the inner wall rigid coupling of a section of thick bamboo 13 has first air stone 14, and air feed box 9 communicates with first air stone 14 through communicating pipe, and a section of thick bamboo 13 end of giving vent to anger is provided with second air stone 15, and second air stone 15 runs through first extension board 7, and second air stone 15 and bull stick 5 rigid coupling, and second air stone 15 rotates with first extension board 7 to be connected. Oxygen discharged from the gas supply box 9 enters the first air stone 14 through the communicating pipe, and the first air stone 14 further shears the oxygen bubbles, so that the diameter of the oxygen bubbles is reduced. While the further reduced oxygen bubbles are conducted through the second aerolite 15 into the aerobic chamber 4.
In a further optimization scheme, the aperture of the second air stone 15 is smaller than that of the first air stone 14, and the air outlet of the second air stone 15 is obliquely arranged. In order to reduce the diameter of the oxygen bubbles again, the aperture of the second air stone 15 is smaller than that of the first air stone 14, and the second air stone 15 rotates along with the rotating rod 5, and the air outlet of the second air stone 15 is obliquely arranged, so that the oxygen bubbles discharged by the second air stone 15 can be thrown into the aerobic chamber 4 more uniformly, and the aeration effect of the aerobic chamber 4 is improved.
In addition, the inclination angle and the inclination direction of the second air stone 15 can be set according to actual use, and the aeration effect can be improved by replacing the second air stones 15 with different types.
According to the further optimization scheme, the spraying barrel 13 is of a circular truncated cone structure, and the diameter of the end portion, close to the first support plate 7, of the spraying barrel 13 is smaller than the diameter of the end portion, close to the second support plate 8, of the spraying barrel 13. The bottom end of the ejector 13 is fixed with the second support plate 8, and the top end of the ejector 13 is communicated with the aerobic chamber 4 through the second air stone 15, so that bubbles are not easy to leave the ejector 13 and enter the aeration chamber 3, and the ejector 13 is arranged in a circular truncated cone structure, so that oxygen bubbles can be further prevented from entering the anaerobic chamber 2, and the reaction rate of the anaerobic chamber 2 is improved.
According to the further optimization scheme, an overflow chamber 16 is communicated with the upper portion of the aerobic chamber 4, the overflow chamber 16 is communicated with an overflow pipe 17, the aerobic chamber 4 and the overflow chamber 16 are separated through a third support plate 18, a stepped through groove is formed in the third support plate 18, a stepped plate 19 matched with the stepped through groove is arranged in the stepped through groove, the carrier frame 6 is sleeved on the rotating rod 5, and the stepped plate 19 is detachably connected with the top end of the rotating rod 5. The overflow chamber 16 prevents the aerobic chamber 4 from overflowing, and a stepped plate 19 is provided on the third support plate 18 to fix the carrier holder 6. When the carrier frame 6 needs to be installed, the carrier frame 6 is installed at the bottom end of the stepped plate 19, then the stepped plate 19 is placed in the stepped through groove, the stepped plate 19 is limited through the stepped through groove, meanwhile, the carrier frame 6 is sleeved on the rotating rod 5, after the stepped plate 19 is located, the stepped plate 19 and the third supporting plate 18 as well as the stepped plate 19 and the rotating rod 5 are fixed through the plurality of fixing bolts 29 respectively
According to the further optimization scheme, the bottom end of the rotating rod 5 penetrates through the second support plate 8 and extends into the anaerobic chamber 2, the rotating rod 5 is rotatably connected with the second support plate 8, a plurality of stirring plates 20 are fixedly connected to the rotating rod 5, and the stirring plates 20 are all located in the anaerobic chamber 2. The rotating rod 5 drives the stirring plate 20 to rotate in the anaerobic chamber 2, so that the stirring plate 20 stirs the waste liquid in the anaerobic chamber 2, and the mixing effect of the waste liquid and microorganisms is improved.
In a further optimized scheme, the power supply part comprises a power supply 21, the aerobic chamber 4 and the anaerobic chamber 2 are respectively and electrically connected with the power supply 21 through a conductive plate 22, the anode of the power supply 21 is electrically connected with the conductive plate 22 positioned in the aerobic chamber 4, and the cathode of the power supply 21 is electrically connected with the conductive plate 22 positioned in the anaerobic chamber 2. A closed loop is formed under the action of the power supply 21, and the inlet water is primarily degraded from bottom to top through the anaerobic chamber 2 and is further mineralized in the aerobic chamber 4. During operation, organic matters are efficiently removed in the anaerobic chamber 2 and the aerobic chamber 4.
In one embodiment of the present invention, the conductive plate 22 is preferably, but not limited to, a titanium plate to supply power to the anaerobic chamber 2 and the aerobic chamber 4, respectively.
In a further optimized scheme, the first support plate 7, the second support plate 8 and the third support plate 18 are respectively provided with a flow port 24 for the circulation of waste liquid, and a screen 23 is fixedly connected in the flow port 24 on the second support plate 8. The presence of the through-flow openings 24 facilitates the flow of waste liquid, while the presence of the screen 23 prevents the carrier cake in the anaerobic chamber 2 from entering the aeration chamber 3.
The working process comprises the following steps:
the waste liquid passes through the anaerobic chamber 2, the aeration chamber 3 and the aerobic chamber 4 from bottom to top in sequence, when the aerobic chamber 4 is aerated, the power supply 21 and the air supply box 27 are started, external oxygen is led into the air supply box 9 through the oxygen inlet pipe 11 and is beaten on the rotating blade 10, so that the rotating blade 10 rotates, and then the oxygen enters the aerobic chamber 4 through the first air stone 14 and the second air stone 15, in the process, the rotating blade 10 drives the rotating rod 5 to rotate, the rotating rod 5 drives the carrier frame 6 and the stirring plate 20 to rotate, the waste liquid in the aerobic chamber 4 and the waste liquid in the anaerobic chamber 2 are respectively stirred, and the mixing effect of the waste liquid and microorganisms is improved.
In the description of the present invention, it is to be understood that the terms "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate orientations or positional relationships based on those shown in the drawings, and are used merely for convenience in describing the present invention, and do not indicate or imply that the device or element so referred to 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.
The above-described embodiments are only intended to illustrate the preferred embodiments of the present invention, and not to limit the scope of the present invention, and various modifications and improvements made to the technical solution of the present invention by those skilled in the art without departing from the spirit of the present invention should fall within the protection scope defined by the claims of the present invention.
Claims (10)
1. An up-flow type electrically-assisted anaerobic-aerobic coupled biofilm reactor, which comprises a reaction tube (1), wherein the reaction tube (1) is sequentially provided with an anaerobic chamber (2), an aeration chamber (3) and an aerobic chamber (4) from bottom to top, the liquid outlet end of the anaerobic chamber (2) is communicated with the liquid inlet end of the aerobic chamber (4) through the aeration chamber (3),
the gas supply part is arranged in the aeration chamber (3) and comprises a gas supply piece and a gas spraying piece, the gas supply piece is positioned below the gas spraying piece and communicated with the gas spraying piece, the gas outlet end of the aeration chamber (3) is communicated with the gas inlet end of the aerobic chamber (4) through the gas spraying piece, and the gas supply piece is in transmission connection with the gas spraying piece through a rotating rod (5);
the carrier part is arranged in the aerobic chamber (4), the carrier part comprises a carrier frame (6), the carrier frame (6) is detachably connected with the reaction tube (1) and the rotating rod (5) respectively, and a plurality of carrier blocks are arranged in the anaerobic chamber (2);
The power supply part is arranged outside the reaction tube (1), the anode of the power supply part is electrically connected with the aerobic chamber (4), and the cathode of the power supply part is electrically connected with the anaerobic chamber (2).
2. The upflow electrically-assisted anaerobic-aerobic coupled biofilm reactor of claim 1, wherein: a first support plate (7) and a second support plate (8) which are fixedly connected with the inner wall of the reaction tube (1), the first support plate (7) is positioned above the second support plate (8), the aeration chamber (3) is separated from the anaerobic chamber (2) and the aerobic chamber (4) through the first support plate (7) and the second support plate (8), the gas supply part comprises a gas supply box (9) fixedly connected with the top end of the second support plate (8), a rotating blade (10) is arranged in the air supply box (9), the rotating rod (5) penetrates through the air supply box (9) and the rotating blade (10), the rotating rod (5) is rotationally connected with the air supply box (9), the rotating rod (5) is fixedly connected with the rotating blades (10), the side wall of the air supply box (9) is communicated with an oxygen inlet pipe (11), and the top end of the air supply box (9) is communicated with the air injection piece.
3. The upflow, electrically-assisted anaerobic-aerobic coupled biofilm reactor of claim 2, wherein: the side wall of the rotating blade (10) is fixedly connected with a plurality of tip protrusions (12), and the tip protrusions (12) are arranged corresponding to the air outlet end of the oxygen inlet pipe (11).
4. The upflow electrically-assisted anaerobic-aerobic coupled biofilm reactor of claim 2, wherein: the air injection part comprises an air injection barrel (13) fixedly connected with the top end of the second support plate (8), the air supply box (9) is located in the air injection barrel (13), a first air stone (14) is fixedly connected with the inner wall of the air injection barrel (13), the air supply box (9) is communicated with the first air stone (14) through a communicating pipe, the air outlet end of the air injection barrel (13) is provided with a second air stone (15), the second air stone (15) penetrates through the first support plate (7), the second air stone (15) is fixedly connected with the rotating rod (5), and the second air stone (15) is rotatably connected with the first support plate (7).
5. The upflow, electrically-assisted anaerobic-aerobic coupled biofilm reactor of claim 4, wherein: the aperture of the second air stone (15) is smaller than that of the first air stone (14), and the air outlet of the second air stone (15) is obliquely arranged.
6. The upflow, electrically-assisted anaerobic-aerobic coupled biofilm reactor of claim 4, wherein: the spraying cylinder (13) is of a circular truncated cone structure, and the diameter of the end part, close to the first support plate (7), of the spraying cylinder (13) is smaller than that of the end part, close to the second support plate (8), of the spraying cylinder (13).
7. The upflow electrically-assisted anaerobic-aerobic coupled biofilm reactor of claim 2, wherein: aerobic chamber (4) top intercommunication has overflow chamber (16), overflow chamber (16) intercommunication has overflow pipe (17), aerobic chamber (4) with overflow chamber (16) are separated through third extension board (18), the notch cuttype leads to the groove has been seted up on third extension board (18), the notch cuttype leads to the inslot and sets up rather than assorted notch cuttype (19), carrier frame (6) cover is established on bull stick (5), just notch cuttype (19) with the connection can be dismantled on bull stick (5) top.
8. The upflow electrically-assisted anaerobic-aerobic coupled biofilm reactor of claim 2, wherein: the bottom end of the rotating rod (5) penetrates through the second support plate (8) and extends into the anaerobic chamber (2), the rotating rod (5) is rotatably connected with the second support plate (8), a plurality of stirring plates (20) are fixedly connected to the rotating rod (5), and the plurality of stirring plates (20) are all located in the anaerobic chamber (2).
9. The upflow electrically-assisted anaerobic-aerobic coupled biofilm reactor of claim 1, wherein: the power supply portion comprises a power supply (21), the aerobic chamber (4) and the anaerobic chamber (2) are respectively connected with the power supply (21) through a conductive plate (22), the anode of the power supply (21) is electrically connected with the conductive plate (22) of the aerobic chamber (4), and the cathode of the power supply (21) is electrically connected with the conductive plate (22) of the anaerobic chamber (2).
10. The upflow electrically assisted anaerobic-aerobic coupled biofilm reactor of claim 7, wherein: the first support plate (7), the second support plate (8) and the third support plate (18) are respectively provided with a circulation port (24) for waste liquid circulation, and a screen (23) is fixedly connected in the circulation port (24) on the second support plate (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210289824.XA CN114573106B (en) | 2022-03-23 | 2022-03-23 | Up-flow type electric-assisted anaerobic-aerobic coupling biomembrane reactor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210289824.XA CN114573106B (en) | 2022-03-23 | 2022-03-23 | Up-flow type electric-assisted anaerobic-aerobic coupling biomembrane reactor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114573106A true CN114573106A (en) | 2022-06-03 |
| CN114573106B CN114573106B (en) | 2023-07-28 |
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