Layered bio-membrane reactor

Abstract

The utility model provides a layered bio-membrane reactor, which belongs to the technical field of sewage treatment and comprises a mounting plane, and a treatment tank and a water outlet tank are mounted on the mounting plane. A layered structure is arranged in the treatment box and divides the interior of the treatment box into a lower deposition area and an upper reaction area, and a blow-off pipe is installed on the side face of the deposition area; the layered structure comprises a plurality of first supporting rods and a plurality of second supporting rods, the first supporting rods and the second supporting rods are mounted on the inner side wall of the treatment box, and the first supporting rods are arranged above the second supporting rods; the layered bio-membrane reactor further comprises a membrane reaction water purification device, the membrane reaction water purification device comprises a membrane reactor and an aeration assembly, the aeration assembly comprises an aeration fan and an aeration pipe, the membrane reactor is installed on the first supporting rod, the aeration fan is installed on the installation plane, and the aeration pipe is installed on the second supporting rod. Aeration holes are formed in one side, facing the first supporting rod, of the aeration pipe.

Description

TECHNICAL FIELD

[0001] The utility model relates to sewage treatment technical field, concretely relates to a layered biological membrane reactor. BACKGROUND

[0002] The biological membrane reactor is a wastewater treatment system that combines membrane separation technology and biological treatment technology, which improves the organic load of biological treatment by maintaining high activated sludge concentration in the biological reactor, thereby reducing the land occupation of wastewater treatment facilities and reducing the amount of residual sludge, and has been widely researched and applied in the fields of wastewater treatment and biological pharmaceuticals. The core of the improvement of the biological membrane reactor lies in the innovation of the membrane material and the optimization of the reactor structure.

[0003] The Chinese patent document with publication number CN213475517U discloses a high-efficiency biological membrane reactor, which includes a shell. The middle part of the shell from top to bottom is a sedimentation zone. The bottom of the shell below the sedimentation zone is provided with a sedimentation hopper connected with the inside of the shell. The periphery of the sedimentation zone is provided with a filtration zone. The outside of the filtration zone is provided with a biological membrane reaction zone at intervals. The biological membrane reaction zone is a cylindrical structure. The two end faces of the biological reaction zone are each provided with a plurality of filler plates at intervals. One end face of each of the filler plates is provided with an inclined plate. A plurality of longitudinal aeration pipes are uniformly distributed between the filtration zone and the biological membrane reaction zone in a ring shape. The reactor can timely discharge residue and has high oxygen content and strong purification capacity.

[0004] The Chinese patent document with publication number CN115367864A discloses a flexible biological membrane reactor, which includes a shell. The shell is a semi-closed structure with four closed sides and vertically through. The bottom of the shell is provided with an aeration device, and the top of the shell is provided with a dense net. The inner cavity of the shell is provided with a hanging rack and flexible biological membrane filler. The invention forms a surrounding airflow during aeration, so that the bacteria are uniformly distributed in the entire cross section and attached to the flexible biological membrane filler, thereby improving water quality.

[0005] Although the use of the biological membrane reactor for water purification treatment can save the sedimentation tank, when the equipment is continuously operated for a long time, the impurity content in the water body will gradually increase, thereby affecting the water permeability and water yield of the membrane. At this time, it is necessary to maintain and clean the equipment. The common biological membrane reactor needs to be lifted out of the installation box for maintenance and cleaning, which is complicated. Therefore, a layered biological membrane reactor needs to be developed to solve the above technical problems. UTILITY MODEL CONTENTS

[0006] The utility model aims to provide a layered biological membrane reactor which can prolong the service life of the membrane reactor and is easy to clean.

[0007] The specific technical solutions adopted are as follows:

[0008] The layered biological membrane reactor comprises a mounting plane, a treatment box and a water outlet box mounted on the mounting plane; the treatment box is provided with a layered structure, which divides the treatment box into a sedimentation zone at the lower part and a reaction zone at the upper part, and a sewage discharge pipe is mounted on the side of the sedimentation zone; the water outlet box is used for receiving the treated water from the treatment box;

[0009] The layered structure comprises a plurality of first supporting rods and a plurality of second supporting rods, and the first supporting rods and the second supporting rods are mounted on the inner side wall of the treatment box, and the first supporting rods are arranged above the second supporting rods.

[0010] The layered biological membrane reactor further comprises a membrane reaction water purification device, and the membrane reaction water purification device comprises a membrane reactor and an aeration assembly, the aeration assembly comprises an aeration fan and an aeration pipe, the membrane reactor is mounted on the first supporting rod, the aeration fan is mounted on the mounting plane, the aeration pipe is mounted on the second supporting rod, and the aeration pipe is provided with aeration holes on the side facing the first supporting rod.

[0011] Further, first fixing plates are fixedly mounted at the two ends of the first supporting rods respectively, and the first fixing plates are screw-mounted on the inner side wall of the treatment box; second fixing plates are fixedly mounted at the two ends of the second supporting rods respectively, and the second fixing plates are screw-mounted on the inner side wall of the treatment box.

[0012] Still further, the first fixing plates and the side wall of the treatment box are both provided with first fixing holes, and first fixing bolts are screw-mounted in the first fixing holes; the second fixing plates and the side wall of the treatment box are both provided with second fixing holes, and second fixing bolts are screw-mounted in the second fixing holes.

[0013] Preferably, in the reaction zone, flow guide plates are fixedly mounted on the inner side wall of the treatment box, and the included angle between the flow guide plates and the corresponding inner side wall of the treatment box is between 25° and 90°.

[0014] Optionally, the aeration fan and the aeration pipe are communicated through a connecting pipe.

[0015] Preferably, the aeration pipe is arranged in a serpentine shape, so that the air outlet of the aeration holes covers the whole membrane reactor, and the air outlet of the aeration holes can collide with and vibrate the membrane in the membrane reactor, thereby avoiding the accumulation of impurities on the surface of the membrane.

[0016] Preferably, the aeration holes arranged on the aeration pipe are grid air outlets, and a grid plate is clamped in the grid air outlets.

[0017] Further, a first water pump is fixedly mounted on the membrane reactor, the first water pump is communicated with the pipeline in the membrane reactor, a water outlet pipe is mounted on the first water pump, and the treated water from the membrane reactor enters the water outlet box through the water outlet pipe.

[0018] Compared with the prior art, the beneficial effects of the present application are:

[0019] (1)The layered biological membrane reactor provided by the utility model, through the layered structure, the treatment box is divided into the deposition area and the reaction area, the membrane reactor is installed in the reaction area, the aeration pipe is installed in the layered structure, impurities are collected in the deposition area, and when working, the water body rolls under the action of the aeration fan, the rolling water body can prevent the deposition of impurities on the membrane surface of the membrane reactor, and due to the positional relationship of the components of the layered biological membrane reactor, the secondary rolling of the deposited impurities can be reduced, and the service life of the membrane reactor is prolonged.

[0020] (2)When the layered biological membrane reactor works, sewage is injected into the treatment box, the aeration fan blows air, the gas enters the aeration pipe through the connecting pipe and is discharged through the grid air outlet, the gas enters the water body and will float upwards, the water body rolls, the first water pump works to generate negative pressure, the membrane in the membrane reactor generates suction, the membrane can block impurities and particles, so that specific medium passes, and the water molecules in the sewage pass through the membrane into the internal passage of the membrane reactor under the negative pressure of the first water pump and are discharged into the water outlet tank through the water outlet pipe to be collected, and the purification of the sewage is completed. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 It is a three-dimensional structure schematic view of the layered biological membrane reactor.

[0022] Figure 2 It is a sectional structure schematic view of the layered biological membrane reactor.

[0023] Figure 3 It is a structure schematic view of the layered structure and the flow guide plate in the layered biological membrane reactor.

[0024] Figure 4 It is a structure schematic view of the aeration assembly in the layered biological membrane reactor.

[0025] Figure 5 It is Figure 3 It is an enlarged view of A in the middle.

[0026] Mark: 1, installation plane; 2, layered structure; 3, membrane reaction water purification device; 4, deposition area; 5, reaction area; 6, blowdown pipe; 7, water outlet tank; 8, treatment box; 20, first support rod; 21, first fixed plate; 22, first fixed hole; 23, first fixed bolt; 24, second support rod; 25, second fixed plate; 26, second fixed hole; 27, second fixed bolt; 28, flow guide plate; 30, aeration fan; 31, connecting pipe; 32, aeration pipe; 33, grid air outlet; 34, grid disc; 35, membrane reactor; 36, first water pump; 37, water outlet pipe. DETAILED DESCRIPTION

[0027] The utility model is further illustrated below in combination with the embodiments and drawings, and the technical solutions in the embodiments of the utility model are clearly and completely described. Obviously, the described embodiments are part of the embodiments of the utility model, rather than all the embodiments. The components of the embodiments of the utility model described and shown in the drawings can be arranged and designed in various different configurations.

[0028] In the description of the embodiments of the utility model, it should be noted that the directions or position relationships indicated by the terms "inner", "outer", "upper", etc. are based on the directions or position relationships shown in the drawings or the directions or position relationships in which the utility model product is usually placed, which are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the indicated devices or elements must have a particular direction, be constructed and operated in a particular direction, and therefore cannot be understood as a limitation on the utility model.

[0029] Embodiment 1

[0030] As Figures 1-5 shown, the layered biological membrane reactor provided by the utility model comprises a mounting plane 1, in order to solve the problem that the membrane reactor is easily blocked by concentrated impurities after long-term use, a treatment box 8 is installed on the mounting plane 1, a water outlet box 7 is installed on one side of the treatment box 8, a layered structure 2 is arranged in the treatment box 8, the layered structure 2 divides the treatment box 8 into a sedimentation area 4 at the lower part and a reaction area 5 at the upper part, a blowdown pipe 6 is installed on the side surface of the sedimentation area 4;

[0031] The layered structure 2 comprises a plurality of first supporting rods 20 and a plurality of second supporting rods 24, the first supporting rods 20 and the second supporting rods 24 are both installed on the inner side wall of the treatment box 8, and the first supporting rods 20 are arranged above the second supporting rods 24;

[0032] The layered biological membrane reactor further comprises a membrane reaction water purification device 3, the membrane reaction water purification device 3 comprises a membrane reactor 35 and an aeration assembly, the aeration assembly comprises an aeration fan 30 and an aeration pipe 32, the membrane reactor 35 is installed on the first supporting rod 20, the aeration fan 30 is installed on the mounting plane 1, the aeration pipe 32 is installed on the second supporting rod 24, and the side of the aeration pipe 32 facing the first supporting rod 20 is provided with aeration holes. When the membrane reaction water purification device 3 works, impurities will be deposited in the sedimentation area 4, thereby reducing the probability of impurities blocking the membrane reactor 35 and prolonging the service life of the membrane reactor 35;

[0033] The water outlet box 7 is used for receiving the effluent treated by the treatment box 8;

[0034] Further, the first support rod 20 is fixedly installed with a first fixed plate 21 at both ends, the first fixed plate 21 and the side wall of the treatment box 8 are both provided with a first fixed hole 22, and the first fixed hole 22 is threadedly installed with a first fixed bolt 23; the second support rod 24 is fixedly installed with a second fixed plate 25 at both ends, the second fixed plate 25 and the side wall of the treatment box 8 are both provided with a second fixed hole 26, and the second fixed hole 26 is threadedly installed with a second fixed bolt 27; in the reaction area 5, the inside wall of the treatment box 8 is symmetrically fixedly installed with a flow guide plate 28, the top of the flow guide plate 28 is symmetrically inclined inward, and the included angle between the flow guide plate 28 and the corresponding inside wall of the treatment box 8 is 45°.

[0035] Further, the aeration fan 30 and the aeration pipe 32 are communicated through the connecting pipe 31, the aeration pipe 32 is serpentine arranged, the aeration holes arranged on the aeration pipe 32 are grid air outlets 33, and the grid air outlets 33 are clamped with grid plates 34.

[0036] In work, the water body is aerated and rolled under the action of the aeration fan 30, the rolling water body can prevent impurities from depositing on the surface of the membrane reactor 35, the water body will roll upward from the aeration pipe 32, the heavier impurities will deposit on both sides of the flow guide plate 28 under the action of the flow guide plate 28 after passing through the membrane reactor 35, and fall into the deposition area 4 below for further collection, because the aeration holes of the aeration pipe 32 are upward arranged and the aeration pipe 32 is installed above the deposition area 4, so only the water body above the deposition area 4 will be driven to roll in work, the possibility of secondary rolling of the deposited impurities is reduced, the service life of the membrane reactor 35 is prolonged, and the cleaning interval of the membrane reactor 35 can be prolonged when the deposition area 4 is cleaned by periodically opening the blow-off pipe 6.

[0037] Specifically, the membrane reactor 35 is fixedly installed with a first water pump 36, the first water pump 36 is communicated with the pipeline inside the membrane reactor 35, the first water pump 36 is installed with a water outlet pipe 37, and the treated water of the membrane reactor 35 enters the water outlet tank 7 through the water outlet pipe 37. In order to realize the function of purifying sewage, the sewage is injected into the treatment box 8, the aeration fan 30 blows air, the gas enters the aeration pipe 32 through the connecting pipe 31 and is discharged through the grid air outlet 33, the gas enters the water body and will float upward, the first water pump 36 works to generate negative pressure, the membrane inside the membrane reactor 35 generates suction, the membrane can block impurities and allow specific medium to pass, and the water molecules in the sewage enter the pipeline inside the membrane reactor 35 under the action of the negative pressure of the first water pump 36 and are discharged into the water outlet tank 7 through the water outlet pipe 37 for collection.

[0038] The working principle of the layered biological membrane reactor is as follows: during installation, the first support rod 20 is fixed in the treatment box 8 through the first fixing bolt 23, and the second support rod 24 is fixed below the first support rod 20 through the second fixing bolt 27, the first support rod 20 and the second support rod 24 divide the treatment box 8 into the deposition area 4 and the reaction area 5, the reaction area 5 is above the first support rod 20, and the deposition area 4 is below the second support rod 24, the membrane reactor 35 is installed on the first support rod 20, i.e. in the reaction area 5, during work, the water body is aerated and rolled under the action of the aeration fan 30, the rolling water body can prevent impurities from depositing on the surface of the membrane reactor 35, the water body will roll upward from the aeration pipe 32, and the heavier impurities will deposit on both sides of the flow guide plate 28 under the action of the flow guide plate 28 after passing through the membrane reactor 35 and fall into the deposition area 4 below, and the aeration pipe 32 is installed above the deposition area 4, so that only the water body above the deposition area 4 is rolled by the gas during work, the rolling of the deposited impurities can be reduced again, the service life of the membrane reactor 35 is prolonged, and the cleaning interval of the membrane reactor 35 is prolonged; in order to realize the effect of purifying sewage, sewage is injected into the treatment box 8, air is blown by the aeration fan 30, the gas enters the aeration pipe 32 through the connecting pipe 31 and is discharged through the grid gas outlet 33, the gas enters the water body and will float upward, and the water body is rolled, the first water pump 36 works to generate negative pressure, the membrane in the membrane reactor 35 generates suction force, the membrane can block impurities and allow specific medium to pass through, and the water molecules in the sewage pass through the membrane into the pipeline in the membrane reactor 35 under the negative pressure of the first water pump 36 and are discharged into the water outlet tank 7 through the water outlet pipe 37 for collection.

[0039] The above-described embodiments have been described in detail for the technical scheme of the utility model, and it should be understood that the above-described embodiments are only specific embodiments of the utility model and are not used to limit the utility model, and any modification, supplement or similar replacement made within the principle range of the utility model should be included in the protection range of the utility model.

Claims

1. A layered biofilm reactor, characterized in that, The application relates to a layered biological membrane reactor, which comprises a mounting plane (1), a treatment box (8) and a water outlet box (7) mounted on the mounting plane (1), a layered structure (2) arranged in the treatment box (8), the layered structure (2) dividing the treatment box (8) into a sedimentation area (4) at the lower part and a reaction area (5) at the upper part, a sewage discharge pipe (6) mounted on the side of the sedimentation area (4), and the water outlet box (7) used for receiving the treated water from the treatment box (8). The layered structure (2) comprises a plurality of first supporting rods (20) and a plurality of second supporting rods (24), the first supporting rods (20) and the second supporting rods (24) are both mounted on the inner side wall of the treatment box (8), and the first supporting rods (20) are arranged above the second supporting rods (24). The layered biological membrane reactor further comprises a membrane reaction water purification device (3), the membrane reaction water purification device (3) comprises a membrane reactor (35) and an aeration assembly, the aeration assembly comprises an aeration fan (30) and an aeration pipe (32), the membrane reactor (35) is mounted on the first supporting rod (20), the aeration fan (30) is mounted on the mounting plane (1), the aeration pipe (32) is mounted on the second supporting rod (24), and the aeration pipe (32) is provided with aeration holes on the side facing the first supporting rod (20).

2. The layered biofilm reactor of claim 1, wherein, First fixing plates (21) are fixedly mounted on the two ends of the first supporting rods (20) respectively, the first fixing plates (21) are screw-mounted on the inner side wall of the treatment box (8), second fixing plates (25) are fixedly mounted on the two ends of the second supporting rods (24) respectively, and the second fixing plates (25) are screw-mounted on the inner side wall of the treatment box (8).

3. The layered biofilm reactor of claim 1, wherein, In the reaction area (5), a flow guide plate (28) is fixedly mounted on the inner side wall of the treatment box (8), and the included angle between the flow guide plate (28) and the corresponding inner side wall of the treatment box (8) is 25-90 degrees.

4. The layered biofilm reactor of claim 1, wherein, The aeration fan (30) and the aeration pipe (32) are communicated through a connecting pipe (31).

5. The layered biofilm reactor of claim 1, wherein, The aeration pipe (32) is arranged in a serpentine mode.

6. The layered biofilm reactor of claim 1, wherein, The aeration holes arranged on the aeration pipe (32) are grid air outlets (33), and a grid plate (34) is clamped in the grid air outlets (33).

7. The layered biofilm reactor of claim 1, wherein, A first water pump (36) is fixedly mounted on the membrane reactor (35), the first water pump (36) is communicated with the internal pipeline of the membrane reactor (35), a water outlet pipe (37) is mounted on the first water pump (36), and the treated water from the membrane reactor (35) enters the water outlet box (7) through the water outlet pipe (37).

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