Novel biological membrane system applied to transformation of conventional biochemical system

Abstract

The invention discloses a novel biological membrane system applied to modification of a conventional biochemical system, and relates to the technical field of sewage treatment, the novel biological membrane system comprises a first bracket and a second bracket, and further comprises a sponge plate sheet filler which is mounted between the first bracket and the second bracket, the thickness of the sponge plate sheet filler is 30-50mm, and the thickness of the sponge plate sheet filler is 10-20mm. A plurality of sponge plate sheet-shaped fillers are arranged, the interval between the plurality of sponge plate sheet-shaped fillers arranged in the horizontal direction is 30-100mm, and the sponge plate sheet-shaped fillers can be stacked for 1-5 layers in the longitudinal direction so as to form a vertical channel. According to the invention, high-efficiency transformation can be realized by utilizing modular design without stopping production, the upgrading and capacity expansion efficiency of a sewage treatment plant is improved, and indexes such as ammonia nitrogen and COD in sewage can be effectively removed by optimizing the filler thickness, gap and gas-water ratio, so that the system oxygen utilization rate is high, and the nitrification load is stable; the problems that in the prior art, transformation is complex, cost is high, and the effect is poor are solved, and high practical application value is achieved.

Description

Technical Field

[0001] The invention belongs to the technical field of sewage treatment, and in particular is a novel biofilm system applied to the transformation of conventional biochemical systems. Background Art

[0002] The activated sludge process is a widely used biological sewage treatment method. It has the functions of biological nitrogen removal and phosphorus removal through the setting of anaerobic, anoxic and aerobic zones. The A2O process is simple, the sludge operates alternately in anaerobic, anoxic and aerobic environments, the sludge has good sedimentation performance, and can simultaneously achieve nitrogen removal, phosphorus removal and degradation of organic matter. It is currently widely used in urban sewage treatment plants. With the continuous improvement of water quality discharge standards and the increase in influent water quality concentration, a large number of existing sewage treatment plant designs can no longer meet the current water quality and water volume. The upgrading and transformation of sewage treatment plants is imminent. There are many transformation ideas for upgrading sewage treatment plants, such as: adding pretreatment at the front end, in-situ transformation and upgrading of the biochemical section, and adding deep treatment at the back end.

[0003] The sewage in-situ biochemical transformation system with the publication number CN215886713U provides a sewage in-situ biochemical transformation system, which includes a sedimentation tank, an annular water inlet channel, a first biochemical tank and a second biochemical tank which are coaxially arranged from the inside to the outside, a primary sewage total inlet is provided at the bottom of the first biochemical tank, a water inlet for discharging secondary sewage to the second biochemical tank is also provided at the bottom of the first biochemical tank, and a connecting channel for discharging tertiary sewage to the annular water inlet channel is provided at the top of the second biochemical tank; an overflow trough is also provided in the sedimentation tank, and the overflow trough discharges the quintuple sewage to the outside through an outlet pipe; two partition walls are provided in the second biochemical tank, and the two partition walls, the outer wall of the first biochemical tank and the outer wall of the second biochemical tank are enclosed to form a sludge pump room. The sewage in-situ biochemical transformation system provided by the utility model reduces the occupied area and can overcome land restrictions to realize the in-situ biochemical system transformation.

[0004] However, in the implementation process of the above patent, if modification is needed, the entire system needs to be replaced and modified, which costs a huge amount of money. Secondly, as time goes by, the biofilm will gradually age, and the sludge attached to the surface and the aged biofilm will reduce the treatment efficiency of the biochemical system and even cause system blockage, affecting the overall operation effect. Therefore, a new biofilm system is proposed for the modification of conventional biochemical systems. Summary of the invention

[0005] In order to solve the problems raised by the above background technology, the present invention proposes a new type of biofilm system applied to the transformation of conventional biochemical systems.

[0006] The purpose of the present invention can be achieved by the following technical solutions:

[0007] A novel biofilm system for transforming a conventional biochemical system, comprising a first support and a second support, and also comprising

[0008] A sponge sheet filler is installed between the first bracket and the second bracket. The thickness of the sponge sheet filler is 30 mm to 50 mm. A plurality of the sponge sheet fillers are provided, and the interval between the plurality of sponge sheet fillers arranged in the horizontal direction is set between 30 mm and 100 mm. The sponge sheet fillers can be stacked in 1 to 5 layers in the longitudinal direction to form a vertical channel.

[0009] It also includes an aeration integrated pipeline and an aerator arranged on the aeration integrated pipeline, wherein the aeration integrated pipeline and the aerator are both arranged below the sponge plate sheet filler, the aeration integrated pipeline is used to transport air, and the aerators are evenly distributed on the aeration integrated pipeline and are used to aerate all the air transported by the aeration integrated pipeline through a straight-through channel formed between a plurality of the sponge plate sheet fillers to maintain a certain content of dissolved oxygen in the system.

[0010] As a further preferred embodiment of the present technical solution: the main body of the sponge sheet filler is a rectangular parallelepiped, and the cross section is a porous sponge.

[0011] As a further preferred embodiment of the present technical solution: the air-water ratio inside the sponge sheet filler is between 4:1 and 8:1.

[0012] As a further preferred embodiment of the technical solution: it also includes a shaking mechanism, which is arranged on the No. 1 bracket and is used to push the No. 1 mounting seat and the No. 2 mounting seat to shake left and right, so as to accelerate the falling of the aged biofilm and sludge on the surface of the sponge plate sheet filler;

[0013] The shaking mechanism includes a rotating shaft fixedly connected to the output end of the driving motor, the rotating shaft is connected to a rotating ring through a connecting shaft, a plurality of No. 1 wheel seats arranged in a circular array are fixedly connected to the outer wall of the rotating ring, and each of the No. 1 wheel seats is rotatably connected to a No. 1 roller.

[0014] As a further preferred embodiment of the present technical solution: a No. 1 mounting seat and a No. 2 mounting seat are arranged between the No. 1 bracket and the No. 2 bracket, and a No. 2 wheel seat is fixedly connected to the No. 1 mounting seat and the No. 2 mounting seat, and a No. 2 roller is rotatably connected to the No. 2 wheel seat, and the No. 2 roller is arranged in a close fit with the No. 1 roller, and a No. 1 spring is fixedly connected to the No. 1 mounting seat and the No. 2 mounting seat, and a connecting plate is fixedly connected to one end of the No. 1 spring away from the No. 1 mounting seat or the No. 2 mounting seat.

[0015] As a further preferred embodiment of the present technical solution: a limiting mechanism is provided on the No. 1 mounting seat, the limiting mechanism includes a plurality of fixed sleeve columns fixedly connected to the No. 1 mounting seat and arranged at equal distances, the fixed sleeve column is slidably connected inside with a driving shaft, one end of the driving shaft is fixedly connected with a driving block, the other end of the driving shaft is fixedly connected with a wedge block, the driving shaft is fixedly connected with a stopper, the outer side of the driving shaft is sleeved with a No. 2 spring, and the No. 2 spring is arranged between the stopper and the fixed sleeve column, the fixed sleeve column is slidably connected inside with a plurality of No. 2 limiting blocks arranged in a ring array, and the No. 3 spring is fixedly connected to the No. 2 limiting block, the end of the No. 3 spring away from the No. 2 limiting block is fixedly connected to the fixed sleeve column, and the No. 2 limiting block is fitted with the wedge block.

[0016] As a further preferred embodiment of the technical solution: the No. 1 mounting seat is slidably connected with a number of connecting blocks with the same number and distribution as the fixed sleeve columns, each of the connecting blocks is provided with a thread groove, the thread groove is threadedly connected to the external thread, and the lower end of the thread groove is through-connected with a limiting groove, and the limiting groove is clamped with the No. 2 limiting block.

[0017] As a further preferred embodiment of the present technical solution: the sponge plate sheet filler is arranged between the No. 1 mounting seat and the No. 2 mounting seat, the upper and lower ends of the sponge plate sheet filler are fixed by a mounting frame, the mounting frame is provided with a guide groove, and the No. 2 mounting seat is provided with a mounting shaft, the mounting shaft slides inside the guide groove, and the connecting block is provided with a No. 1 mounting hole, and the No. 1 mounting hole is slidably arranged with the mounting shaft.

[0018] As a further preferred embodiment of the present technical solution: a locking mechanism is provided on both the No. 1 bracket and the No. 2 bracket, and the locking mechanism includes an electric push rod fixedly connected to the No. 1 bracket or the No. 2 bracket, and the output end of the electric push rod is fixedly connected to the No. 1 limit block, and the No. 1 mounting seat and the No. 2 mounting seat are provided with limit holes used in conjunction with the No. 1 limit block.

[0019] As a further preferred embodiment of the technical solution: the lower ends of the No. 1 bracket and the No. 2 bracket are both fixedly connected to a fixing seat, and a No. 2 mounting hole is provided on the fixing seat.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] 1. In the present invention, by utilizing modular design, efficient transformation can be achieved without stopping production, thereby improving the efficiency of upgrading and expanding the capacity of the sewage treatment plant. By optimizing the filler thickness, gap and gas-water ratio, the system has a high oxygen utilization rate and a stable nitrification load, and can effectively remove indicators such as ammonia nitrogen and COD in sewage, thereby solving the problems of complex transformation, high cost and poor effect in the prior art, and having high practical application value.

[0022] 2. In the present invention, the aeration integrated pipeline, aerator and sponge sheet filler are concentrated on the bracket and hoisted into the tank body without stopping production, and multi-layer sponge sheet filler modules can be arranged as needed, thereby reducing the cost of modifying the original tank body.

[0023] 3. In the present invention, the sponge plate-like filler is shaken back and forth in the horizontal direction through the shaking mechanism, which enhances the flushing effect of the aerator on the aged biofilm and sludge on the surface of the filler, thereby promoting the renewal of the biofilm and improving the treatment efficiency of the biochemical system.

[0024] 4. In the present invention, the limiting mechanism is used to ensure that the fixed sleeve will not loosen and fall off from the thread groove during the reciprocating shaking of the sponge plate sheet filler in the horizontal direction, thereby ensuring the stability of the sponge plate sheet filler.

[0025] 5. In the present invention, the fixing and shaking states of the sponge sheet filler are flexibly controlled through the locking mechanism, so that the sponge sheet filler is kept stable during the adsorption stage, and the sponge sheet filler is released for shaking during the flushing stage. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 The water quality diagram of the inlet and outlet water when the packing thickness of the present invention is 30mm and 50mm respectively;

[0027] Figure 2 The water quality diagram of the water inlet and outlet when the packing gap of the present invention is 30mm and 50mm respectively;

[0028] Figure 3 The water quality diagrams of the inlet and outlet water of the present invention are 5:1 and 4:1 respectively in the gas-water ratio;

[0029] Figure 4 It is a schematic diagram of the three-dimensional structure of the present invention;

[0030] Figure 5 It is a schematic diagram of the local three-dimensional structure of the present invention Figure 1 ;

[0031] Figure 6 for Figure 2 The enlarged schematic diagram at A in the middle;

[0032] Figure 7 It is a schematic diagram of the local three-dimensional structure of the present invention Figure 2 ;

[0033] Figure 8 It is a schematic diagram of the local three-dimensional structure of the present invention Figure 3 ;

[0034] Fig. 9 for Figure 5The enlarged schematic diagram of point B in the middle;

[0035] Fig.10 It is a schematic diagram of the local three-dimensional structure of the present invention Figure 4 ;

[0036] Fig.11 It is a partial structural cross-sectional view of the present invention;

[0037] Fig.12 It is a schematic diagram of the local three-dimensional structure of the present invention Figure 5 ;

[0038] Fig.13 is a side view of the present invention;

[0039] Fig.14 It is a schematic diagram of the local structure of the present invention.

[0040] Legend: 1. Bracket No. 1; 2. Bracket No. 2; 3. Shaking mechanism; 31. Driving motor; 32. Rotating shaft; 33. Connecting shaft; 34. Rotating ring; 35. Wheel seat No. 1; 36. Roller No. 1; 37. Limiting sleeve; 38. Connecting plate; 39. Spring No. 1; 310. Hole groove; 4. Mounting seat No. 1; 5. Mounting seat No. 2; 51. Mounting shaft; 6. Wheel seat No. 2; 61. Roller No. 2; 8. Locking mechanism; 83. Limiting hole; 84. Electric push rod; 85. Limiting block No. 1; 9. Sponge sheet filler; 91, mounting frame; 92, guide groove; 10, connecting block; 101, thread groove; 102, limit groove; 103, mounting hole No. 1; 11, limit mechanism; 111, external thread; 112, drive shaft; 113, drive block; 114, stop block; 115, spring No. 2; 116, wedge block; 117, limit block No. 2; 118, spring No. 3; 119, fixed sleeve column; 12, fixed seat; 121, mounting hole No. 2; 13, aeration integrated pipeline; 14, aerator. DETAILED DESCRIPTION

[0041] The technical solution of the present invention will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0042] Embodiment 1:

[0043] See also Figure 1-Figure 3A novel biofilm system used for the transformation of conventional biochemical systems includes a No. 1 bracket 1 and a No. 2 bracket 2, and also includes a sponge plate flaky filler 9, which is installed between the No. 1 bracket 1 and the No. 2 bracket 2. The thickness of the sponge plate flaky filler 9 is 30mm-50mm, preferably 30mm. A plurality of sponge plate flaky fillers 9 are provided. The sponge plate flaky fillers 9 are used as biological carriers, and the oxygen utilization rate of the system is improved to maintain a high nitrification load. The ammonia nitrogen, COD and other indicators in the sewage are efficiently removed through the novel biofilm system.

[0044] For example, in case 1, the specific implementation method is as follows Figure 1 As shown in the figure, the type of sewage to be treated is domestic sewage. The main water quality parameters of the influent are ammonia nitrogen, COD, BOD, total phosphorus, total nitrogen, etc. The designed influent volume of the domestic sewage is 5000m 3 / d, the designed inlet water quality standard is ammonia nitrogen ≤ 32mg / L, COD ≤ 310mg / L, BOD ≤ 160mg / L, total phosphorus ≤ 4mg / L, total nitrogen ≤ 45mg / L, the designed effluent water quality standard is ammonia nitrogen ≤ 5mg / L, COD ≤ 50mg / L, BOD ≤ 10mg / L, total phosphorus ≤ 0.5mg / L, total nitrogen ≤ 15mg / L, the current average daily sewage volume is 3500m 3 / d, the water load rate is 70%, but the average daily influent ammonia nitrogen concentration is 43mg / L, and the ammonia nitrogen load rate can reach 134%. In view of the above situation, in-situ transformation was carried out in the original aerobic pool by adding 192 new biofilm modules (single module size is 3.0*2.0*1.0m, plate filler size is 2*1m, thickness is 30mm, plate spacing is 30mm, gas-water ratio: 5:1);

[0045] Through the above transformation, the sewage is treated in the system. By monitoring the inlet and outlet water of the system during operation, the system shows efficient removal capabilities for indicators such as COD and ammonia nitrogen in sewage. The ammonia nitrogen in the system effluent can be stabilized below 4.5 mg / L, averaging 3.15 mg / L, and the ammonia nitrogen removal rate can reach more than 80%. The effluent COD can be stabilized below 45 mg / L, averaging 33.19 mg / L, and the ammonia nitrogen removal rate can reach more than 85%. Then, by changing the filler thickness, this case designs a sponge plate flake filler 9 with a thickness of 30 mm. During the operation of the system, the inlet and outlet water quality tests were conducted to examine the removal effect of the module in Example 1 on COD and ammonia nitrogen in sewage. After the system was running stably, the water quality test data for 30 days was recorded and it was found that the sponge plate flake filler 9 was 30 mm thick. The thickness of the sponge plate filler 9 is 50mm, and the removal effect of COD and ammonia nitrogen in sewage by comparing the case one module was investigated through inlet and outlet water quality testing. After the system was running stably, the water quality test data for 30 days was recorded and found that the sponge plate filler 9 with a thickness of 50mm showed lower removal of COD and ammonia nitrogen, and the effluent COD concentration was stable below 50mg / L, with an average of 43.04mg / L, and the effluent ammonia nitrogen concentration was maintained at around 5mg / L, occasionally exceeding 5mg / L, with an average of 4.35mg / L.

[0046] From the above comparison, it can be concluded that the pollutant removal effect is worse when the plate filler thickness is 50mm than when the thickness is 30m, because the thicker the plate filler is, the more difficult it is for oxygen to enter the filler, the biomass is lower, and the treatment effect is reduced.

[0047] In this embodiment, the interval between the plurality of sponge sheet fillers 9 arranged in the horizontal direction is set between 30 mm and 100 mm, preferably 30 mm, and the sponge sheet fillers 9 can be stacked in 1-5 layers in the longitudinal direction to form a vertical channel;

[0048] For example, in case 2, the specific implementation method is as follows Figure 2As shown, this case is the same as the module in case 1, except that: the design changes the filler gap, and compared with the design parameters in case 1, the filler gap in case 1 is 5 / 3 of the design amount in case 2. During the operation of the system, the removal effect of the module in case 1 on COD and ammonia nitrogen in sewage was investigated through water quality testing of inlet and outlet water. After the system was running stably, the water quality test data for 30 days was recorded and it was found that the gap of 30mm between the sponge sheet fillers 9 showed high efficiency in removing COD and ammonia nitrogen, and the outlet COD concentration was stable below 45mg / L, with an average of 33. 19mg / L, the effluent ammonia nitrogen concentration was kept below 4.5mg / L, with an average of 3.15mg / L. When the gap between the sponge plate fillers 9 was 50mm, it was found through the inlet and outlet water quality inspection that after the system was running stably, the water quality inspection data for 30 days was recorded and found that the filler gap of 50mm showed a lower removal of COD and ammonia nitrogen. The effluent COD concentration was stabilized below 50mg / L, with an average of 45.99mg / L, and the effluent ammonia nitrogen concentration was kept at about 5mg / L, occasionally exceeding 5mg / L, with an average of 4.65mg / L.

[0049] From the above comparison, it can be concluded that the pollutant removal effect is worse when the gap between the packings is 50mm than when the gap is 30m. This is because the larger the gap between the packings, the smaller the number of packings, and the biomass attached to the surface of the packing per cubic meter decreases with the increase of the gap, which reduces the treatment effect.

[0050] In this embodiment, the aeration integrated pipeline 13 and the aerator 14 arranged on the aeration integrated pipeline 13 are both arranged below the sponge plate sheet filler 9. The aeration integrated pipeline 13 is used to transport air. The aerators 14 are evenly distributed on the aeration integrated pipeline 13 and are used to aerate all the air transported by the aeration integrated pipeline 13 through the straight-through channel formed between a number of sponge plate sheet fillers 9 to maintain a certain content of dissolved oxygen in the system. The aerator 14 is a uniformly distributed, small-aperture tubular aeration. The gas is dispersed into the system through the straight-through channel between the sponge plate sheet fillers 9. By controlling the gas-water ratio, the efficient operation of the entire system is maintained;

[0051] In this embodiment, the main body of the sponge sheet filler 9 is a rectangular parallelepiped, and the cross section is a sponge porous shape.

[0052] In this embodiment, the air-water ratio inside the sponge sheet filler 9 is between 4:1 and 8:1. For lightly polluted water bodies, the air-water ratio is 4:1-6:1, preferably 5:1. For heavily polluted water bodies, the air-water ratio is 6:1-8:1.

[0053] For example, in case 3, the specific implementation method is as follows Figure 3As shown, the difference from Case 1 is that the design changes the gas-water ratio. The design parameters of Case 1 are 5:1, and the gas-water ratio in Case 3 is 4:1. During the operation of the system, the removal effect of the module in Case 1 on COD and ammonia nitrogen in sewage was investigated through inlet and outlet water quality testing. After the system was running stably, the water quality test data for 30 days was recorded and it was found that the sponge sheet filler 9 with a thickness of 30mm showed efficient removal of COD and ammonia nitrogen. The effluent COD concentration was stabilized below 45mg / L, with an average of 33.19mg / L, and the effluent ammonia nitrogen concentration was maintained below 4.5mg / L, with an average of 3.15mg / L.

[0054] In Comparative Example 3, the gas-water ratio is 4:1. The removal effect of the module in Comparative Example 3 on COD and ammonia nitrogen in sewage was investigated through inlet and outlet water quality testing. After the system was running stably, the water quality test data for 30 days was recorded and it was found that the gas-water ratio of 4:1 showed lower removal of COD and ammonia nitrogen. The outlet COD concentration was stable below 50 mg / L, with an average of 47.19 mg / L. The outlet ammonia nitrogen concentration was maintained at around 5 mg / L, occasionally exceeding 5 mg / L, with an average of 4.77 mg / L.

[0055] From the above comparison, it can be concluded that the pollutant removal effect is worse when the air-water ratio is 4:1 than when the air-water ratio is 5:1. This is because in the aerobic reaction process, nitrifying bacteria consume oxygen for nitrification reaction. When the air-water ratio is 4:1, the biological activity is lower than that of 5:1, and the treatment effect is low.

[0056] Embodiment 2:

[0057] In this embodiment, an aeration integrated pipeline 13 is fixedly arranged between the No. 1 bracket 1 and the No. 2 bracket 2, and an aerator 14 is arranged on the aeration integrated pipeline 13. The aerators 14 are evenly arranged, and the aeration integrated pipeline 13 and the aerators 14 are arranged below the sponge plate sheet filler 9. It should be noted that in the nitrification treatment process of sewage, all the air transported by the aeration integrated pipeline 13 passes through the straight-through channel formed by the sponge plate sheet filler 9 to maintain a certain content of dissolved oxygen in the system, so as to provide sufficient oxygen for the formation of the biofilm on the sponge plate sheet filler 9. After the sewage and the biofilm are in contact, pollutants such as ammonia nitrogen are removed. To achieve efficient removal, secondly, the straight-through structure formed by the multi-layer stacking of sponge plate flaky filler 9 can facilitate the continuous flushing of aged biofilm and sludge on the surface of sponge plate flaky filler 9, so that the aged biofilm is peeled off from the surface of the filler and taken out of the system through the rising process of air and water, thereby completing the renewal of the biofilm. The continuous renewal of the biofilm can ensure the activity of nitrifying bacteria in the system, so the nitrification load of the system is continuously stable at a high level. At the same time, the system does not require a separate backwash system, which can effectively solve the problems of filler blockage caused by the interception of suspended matter by the filler and the growth, reproduction and aging of microorganisms during the operation of the biofilm process.

[0058] Embodiment three:

[0059] For the technique in Example 1, please refer to Figure 4-Figure 14 , including a shaking mechanism 3 arranged on the No. 1 bracket 1, used to push the No. 1 mounting seat 4 and the No. 2 mounting seat 5 to shake left and right, accelerating the falling of the aged biofilm and sludge on the surface of the sponge plate sheet filler 9;

[0060] The shaking mechanism 3 includes a rotating shaft 32 fixedly connected to the output end of the driving motor 31, the driving motor 31 is fixedly connected to the upper end of the No. 1 bracket 1, and the driving motor 31 is rotatably connected to the No. 1 bracket 1, a connecting shaft 33 is fixedly connected to the rotating shaft 32, and a rotating ring 34 is fixedly connected to the end of the connecting shaft 33 away from the rotating shaft 32, and a plurality of No. 1 wheel seats 35 arranged in a circular array are fixedly connected to the outer wall of the rotating ring 34, each No. 1 wheel seat 35 is rotatably connected to a No. 1 roller 36, and a limiting sleeve 37 is provided on the rotating shaft 32.

[0061] Specifically, the driving motor 31 is started to drive the rotating shaft 32 to rotate, the rotating shaft 32 drives the connecting shaft 33 to rotate, the connecting shaft 33 drives the rotating ring 34 to rotate, and the rotating ring 34 drives multiple No. 1 rollers 36 to rotate through the No. 1 wheel seat 35. When one of the No. 1 rollers 36 is in contact with the No. 2 roller 61 on the No. 2 wheel seat 6, the No. 1 mounting seat 4 and the No. 2 mounting seat 5 are pushed to move in the direction of the No. 2 bracket 2. Because the connecting plate 38 is in contact with the No. 2 bracket 2, the movement of the No. 1 mounting seat 4 or the No. 2 mounting seat 5 compresses the No. 1 spring 39. As the rotating ring 34 rotates, the No. 1 roller 36 It gradually separates from roller No. 2 61, and under the action of the elastic force of spring No. 1 39, mount No. 1 4 or mount No. 2 5 is pushed back to its original position, and so on. Next roller No. 1 36 pushes roller No. 2 61 again, and the above steps are repeated to realize that mount No. 1 4 and mount No. 2 5 drive the sponge plate sheet filler 9 thereon to shake back and forth in the horizontal direction. At this point, in the process of the aerator 14 continuously flushing the aged biofilm and sludge on the surface of the sponge plate sheet filler 9, the shaking of the sponge plate sheet filler 9 improves the effect of falling off the aged biofilm and sludge on the surface of the sponge plate sheet filler 9.

[0062] In this embodiment, a No. 1 mounting seat 4 and a No. 2 mounting seat 5 are arranged between the No. 1 bracket 1 and the No. 2 bracket 2, and a No. 2 wheel seat 6 is fixedly connected to the No. 1 mounting seat 4 and the No. 2 mounting seat 5, and a No. 2 roller 61 is rotatably connected to the No. 2 wheel seat 6, and the No. 2 roller 61 is arranged in a close fit with the No. 1 roller 36, and a No. 1 spring 39 is fixedly connected to the No. 1 mounting seat 4 and the No. 2 mounting seat 5, and a connecting plate 38 is fixedly connected to one end of the No. 1 spring 39 away from the No. 1 mounting seat 4 or the No. 2 mounting seat 5, and the connecting plate 38 is arranged in a close fit with the No. 2 bracket 2.

[0063] In this embodiment, the lower ends of the No. 1 bracket 1 and the No. 2 bracket 2 are both fixedly connected to a fixing seat 12 , and a No. 2 mounting hole 121 is provided on the fixing seat 12 .

[0064] Specifically, the No. 1 mounting seat 4 and the No. 2 mounting seat 5 equipped with the sponge plate sheet filler 9 are slidably inserted into the No. 1 bracket 1 and the No. 2 bracket 2 respectively, and the whole is fixed in the sewage denitrification tank through the No. 2 mounting hole 121 on the fixing seat 12.

[0065] Embodiment 4:

[0066] On the basis of the third embodiment, a limiting mechanism 11 is provided on the No. 1 mounting seat 4, and the limiting mechanism 11 includes a plurality of fixed sleeves 119 fixedly connected to the No. 1 mounting seat 4 and arranged at equal intervals, a driving shaft 112 is slidably connected inside the fixed sleeve 119, a driving block 113 is fixedly connected to one end of the driving shaft 112, a wedge block 116 is fixedly connected to the other end of the driving shaft 112, a stopper 114 is fixedly connected to the driving shaft 112, a No. 2 spring 115 is sleeved on the outer side of the driving shaft 112, and the No. 2 spring 115 is arranged between the stopper 114 and the fixed sleeve 119, a plurality of No. 2 limiting blocks 117 arranged in a ring array are slidably connected inside the fixed sleeve 119, and a No. 3 spring 118 is fixedly connected to the No. 2 limiting block 117, an end of the No. 3 spring 118 away from the No. 2 limiting block 117 is fixedly connected to the fixed sleeve 119, and the No. 2 limiting block 117 is fitted with the wedge block 116.

[0067] Specifically, by pulling the driving block 113 upward, the stopper 114 is driven to rise, and the stopper 114 squeezes the No. 2 spring 115 to compress the No. 2 spring 115, and the driving shaft 112 drives the wedge block 116 at the lower end to rise, and under the action of the No. 3 spring 118 which is originally in a compressed state, the No. 2 limit block 117 is slid into the interior of the fixed sleeve 119, and the fixed sleeve 119 is threadedly fixed in the thread groove 101 through the external thread 111, until the No. 2 limit block 117 and the limit block 117 are in contact with each other. The groove 102 is parallel, and the driving block 113 is released. Under the elastic force of the No. 2 spring 115, the No. 2 limit block 117 is pushed out of the interior of the fixed sleeve 119 again and stuck in the limit groove 102. At this point, the force is realized in the process of the shaking mechanism 3 pushing the No. 1 mounting seat 4 and the No. 2 mounting seat 5 to vibrate, thereby ensuring the stability of the fixed installation of the sponge plate sheet filler 9, and preventing the fixed sleeve 119 from being loosened by vibration and detaching from the inside of the threaded groove 101, thereby ensuring the stability of the sponge plate sheet filler 9.

[0068] In this embodiment, a number of connecting blocks 10 having the same number and distribution as the fixed sleeve 119 are slidably connected to the No. 1 mounting seat 4, and each connecting block 10 is provided with a thread groove 101, which is threadedly connected to the external thread 111, and the lower end of the thread groove 101 is connected through a limiting groove 102, and the limiting groove 102 is clamped with the No. 2 limiting block 117.

[0069] In this embodiment, a sponge plate sheet filler 9 is arranged between the No. 1 mounting seat 4 and the No. 2 mounting seat 5, and the upper and lower ends of the sponge plate sheet filler 9 are fixed by a mounting frame 91. It should be noted that the mounting frame 91 can be fixed with bolts and snaps, etc., and snaps are preferably used for fixing, and there is no need to drill holes in the sponge plate sheet filler 9. A guide groove 92 is arranged on the mounting frame 91, and a mounting shaft 51 is arranged on the No. 2 mounting seat 5, and the mounting shaft 51 slides inside the guide groove 92, and a No. 1 mounting hole 103 is arranged on the connecting block 10, and the No. 1 mounting hole 103 is slidably arranged with the mounting shaft 51.

[0070] The plurality of guide grooves 92 are slidably inserted on the mounting shaft 51 in sequence, and then the connecting block 10 on the No. 1 mounting seat 4 is spliced ​​through the No. 1 mounting hole 103 .

[0071] Embodiment five:

[0072] On the basis of embodiment three, a locking mechanism 8 is provided on both the No. 1 bracket 1 and the No. 2 bracket 2, and the locking mechanism 8 includes an electric push rod 84 fixedly connected to the No. 1 bracket 1 or the No. 2 bracket 2, and the output end of the electric push rod 84 is fixedly connected to the No. 1 limit block 85, and the No. 1 mounting seat 4 and the No. 2 mounting seat 5 are provided with a limit hole 83 used in conjunction with the No. 1 limit block 85.

[0073] Specifically, when the sponge plate sheet filler 9 is in normal use, the electric push rod 84 can be started to push the No. 1 limit block 85 into the interior of the limit hole 83 to ensure the stability of the sponge plate sheet filler 9. That is, during the process of aerating the sewage through the aerator 14 and adsorbing it through the sponge plate sheet filler 9, the sponge plate sheet filler 9 can always be fixed. After use, during the process of continuously flushing the aged biofilm and sludge on the surface of the sponge plate sheet filler 9, the No. 1 mounting seat 4 and the No. 2 mounting seat 5 are released to make the sponge plate sheet filler 9 shake continuously.

[0074] In this embodiment, a hole groove 310 is provided on the connecting plate 38 , and the electric push rod 84 disposed on the side close to the second bracket 2 is penetrated by the hole groove 310 to prevent the connecting plate 38 from blocking the electric push rod 84 .

[0075] The above embodiments are only used to illustrate the technical method of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical method of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical method of the present invention.

Claims

1. A novel biofilm system for transformation of conventional biochemical systems, comprising a first support (1) and a second support (2), characterized in that: Also includes A sponge sheet filler (9) is installed between the first bracket (1) and the second bracket (2), the thickness of the sponge sheet filler (9) is 30 mm to 50 mm, a plurality of the sponge sheet fillers (9) are provided, and the interval between the plurality of the sponge sheet fillers (9) arranged in the horizontal direction is set to be between 30 mm and 100 mm, and the sponge sheet fillers (9) can be stacked in 1 to 5 layers in the longitudinal direction to form a vertical channel; The system also comprises an aeration integrated pipeline (13) and an aerator (14) arranged on the aeration integrated pipeline (13); the aeration integrated pipeline (13) and the aerator (14) are both arranged below the sponge plate flaky filler (9); the aeration integrated pipeline (13) is used to transport air; the aerator (14) is evenly distributed on the aeration integrated pipeline (13) and is used to aerate all the air transported by the aeration integrated pipeline (13) through a straight-through channel formed between a plurality of the sponge plate flaky fillers (9) so as to maintain a certain content of dissolved oxygen in the system.

2. A novel biofilm system for transformation of conventional biochemical systems according to claim 1, characterized in that: The main body of the sponge sheet filler (9) is a rectangular parallelepiped, and the cross section is a porous sponge.

3. A novel biofilm system for transformation of conventional biochemical systems according to claim 1, characterized in that: The air-water ratio inside the sponge plate-like filler (9) is between 4:1 and 8:

1.

4. A novel biofilm system for transformation of conventional biochemical systems according to claim 1, characterized in that: Also includes The shaking mechanism (3) is arranged on the first bracket (1) and is used to push the first mounting seat (4) and the second mounting seat (5) to shake left and right, thereby accelerating the falling of the aged biofilm and sludge on the surface of the sponge plate flake filler (9); The shaking mechanism (3) comprises a rotating shaft (32) fixedly connected to the output end of a driving motor (31); the rotating shaft (32) is connected to a rotating ring (34) via a connecting shaft (33); a plurality of No. 1 wheel seats (35) arranged in a ring array are fixedly connected to the outer wall of the rotating ring (34); and each of the No. 1 wheel seats (35) is rotatably connected to a No. 1 roller (36).

5. A novel biofilm system for transformation of conventional biochemical systems according to claim 4, characterized in that: A No. 1 mounting seat (4) and a No. 2 mounting seat (5) are arranged between the No. 1 bracket (1) and the No. 2 bracket (2), and a No. 2 wheel seat (6) is fixedly connected to the No. 1 mounting seat (4) and the No. 2 mounting seat (5), and a No. 2 roller (61) is rotatably connected to the No. 2 wheel seat (6), and the No. 2 roller (61) is arranged in close contact with the No. 1 roller (36), and a No. 1 spring (39) is fixedly connected to the No. 1 mounting seat (4) and the No. 2 mounting seat (5), and a connecting plate (38) is fixedly connected to one end of the No. 1 spring (39) away from the No. 1 mounting seat (4) or the No. 2 mounting seat (5).

6. A novel biofilm system for transformation of conventional biochemical systems according to claim 5, characterized in that: The No. 1 mounting seat (4) is provided with a limit mechanism (11), the limit mechanism (11) comprising a plurality of fixed sleeve columns (119) fixedly connected to the No. 1 mounting seat (4) and arranged at equal intervals, a driving shaft (112) being slidably connected inside the fixed sleeve column (119), one end of the driving shaft (112) being fixedly connected to a driving block (113), the other end of the driving shaft (112) being fixedly connected to a wedge block (116), a stopper (114) being fixedly connected to the driving shaft (112), and the driving shaft (112) being fixedly connected to a plurality of fixed sleeve columns (119) being fixedly connected to the No. 1 mounting seat (4). A No. 2 spring (115) is sleeved on the outside, and the No. 2 spring (115) is arranged between the stopper (114) and the fixed sleeve column (119), and a plurality of No. 2 limit blocks (117) arranged in a ring array are slidably connected inside the fixed sleeve column (119), and a No. 3 spring (118) is fixedly connected to the No. 2 limit block (117), and one end of the No. 3 spring (118) away from the No. 2 limit block (117) is fixedly connected to the fixed sleeve column (119), and the No. 2 limit block (117) is arranged in close contact with the wedge block (116).

7. A novel biofilm system for transformation of conventional biochemical systems according to claim 6, characterized in that: The No. 1 mounting seat (4) is slidably connected to a plurality of connection blocks (10) of the same number and distribution as the fixed sleeve column (119), each of the connection blocks (10) is provided with a thread groove (101), the thread groove (101) is threadedly connected to the external thread (111), and the lower end of the thread groove (101) is connected through a limit groove (102), and the limit groove (102) is clamped with the No. 2 limit block (117).

8. A novel biofilm system for transformation of conventional biochemical systems according to claim 7, characterized in that: The sponge plate flaky filler (9) is arranged between the No. 1 mounting seat (4) and the No. 2 mounting seat (5), the upper end and the lower end of the sponge plate flaky filler (9) are fixed by a mounting frame (91), the mounting frame (91) is provided with a guide groove (92), and the No. 2 mounting seat (5) is provided with a mounting shaft (51), the mounting shaft (51) slides inside the guide groove (92), and the connecting block (10) is provided with a No. 1 mounting hole (103), the No. 1 mounting hole (103) and the mounting shaft (51) are slidably arranged.

9. A novel biofilm system for transformation of conventional biochemical systems according to claim 4, characterized in that: The first bracket (1) and the second bracket (2) are both provided with a locking mechanism (8), the locking mechanism (8) comprising an electric push rod (84) fixedly connected to the first bracket (1) or the second bracket (2), the output end of the electric push rod (84) being fixedly connected to a first limit block (85), and the first mounting seat (4) and the second mounting seat (5) are provided with a limit hole (83) used in conjunction with the first limit block (85).

10. A novel biofilm system for transformation of conventional biochemical systems according to claim 4, characterized in that: The lower ends of the No. 1 bracket (1) and the No. 2 bracket (2) are both fixedly connected to a fixing seat (12), and the fixing seat (12) is provided with a No. 2 mounting hole (121).

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