Filler for wastewater biochemical treatment and wastewater biochemical treatment pool

Abstract

The invention discloses a filler for biochemical treatment of wastewater, including filler balls, the filler balls include two hemispherical shells matched with each other, a plurality of first water-permeable holes are evenly arranged on the hemispherical shells, a plurality of separators and a plurality of attachment balls are arranged inside the filler balls, and the plurality of separators are coaxially arranged along the diameter, a plurality of second water-permeable holes are evenly arranged on the separators, support balls are arranged at both ends of the diameter of the separators, and ball grooves matched with the support balls are arranged on the inner wall of the hemispherical shells. A biochemical treatment pool for wastewater based on the above-mentioned filler for biochemical treatment of wastewater includes a pool body, a plurality of first limiting grooves are symmetrically arranged on the inner walls of both sides of the pool body, a partition is arranged in the middle of the pool body, a plurality of second limiting grooves are symmetrically arranged on both sides of the partition, and a filler rack is arranged between the second limiting grooves and the corresponding first limiting grooves; the invention improves the biofilm growth speed, biofilm growth amount and oxygen utilization rate through the setting of the overall structure, and has a simple structure, is not easy to be blocked, and reduces the production cost.

Description

Technical Field

[0001] The invention relates to the technical field related to sewage treatment, and in particular to a filler for biochemical treatment of wastewater and a biochemical treatment pool for wastewater. Background Art

[0002] In the field of sewage treatment, biological contact oxidation is often used. It mainly uses biofilm attached to fillers to purify organic wastewater. Aeration is performed while setting carriers to oxygenate the sewage, so that the sewage is in a flowing state and the contact area between the sewage and the biofilm is increased. This process often uses filler balls as biofilm carriers. In actual use, filler balls are put into the reactor in a certain proportion (depending on the water quality and treatment requirements). After the water is passed, the filler balls are suspended in the water. After a period of cultivation, a large number of microorganisms will be attached to the filler balls. The filler ball is a common decontamination tool used in sewage treatment using the flow biological method. It usually includes a hollow filler sphere with water flow holes and an internal filler. It mainly uses the principle of flow velocity separation to separate organic matter and impurities in sewage from water, that is, when the water with dirt flows through the solid surface of the filler sphere and the internal filler, a laminar flow phenomenon occurs, and the organic matter and impurities in the water are separated to the filler; then these organic matter and impurities react with the microorganisms on the filler until they are decomposed into harmless substances to achieve the purpose of water purification. At present, the filler ball fillers all use crushed stone as the carrier of microorganisms. The disadvantage is that its ability to load microorganisms is poor, resulting in a small number of microorganisms that can play a decomposition role, resulting in low efficiency in decomposing organic matter and impurities in water.

[0003] Most of the existing wastewater treatment pools are filled with suspended filler balls. Traditional suspended filler balls have the disadvantages of large resistance, easy agglomeration, and susceptibility to the influence of hydraulic flow field, which seriously restricts the biofilm performance. Especially under the working conditions of poor stirring effect and large mixed water flow resistance, the effective contact area between the biofilm and the treated water body will also be greatly reduced, and it is difficult to treat the sewage efficiently. At present, some biological filler devices have slow biofilm growth speed, small biofilm growth amount, low oxygen utilization rate, and easy clogging. At the same time, there are also disadvantages such as complex structure and shape, high raw material cost, and difficult manufacturing and processing. In addition, the existing wastewater biochemical treatment pool is very troublesome to replace the filler device, and the filler setting density is not easy to control. Therefore, it is necessary to design a wastewater biochemical treatment filler and a wastewater biochemical treatment pool to solve the above problems. Summary of the invention

[0004] In order to solve the defects in the prior art, the present invention provides a filler for biochemical treatment of wastewater and a biochemical treatment pool for wastewater.

[0005] In order to solve the above technical problems, the present invention provides the following technical solutions:

[0006] The invention discloses a filler for biochemical treatment of wastewater, comprising a filler ball, wherein the filler ball comprises two mutually matched hemispherical shells, a plurality of first water-permeable holes are evenly arranged on the hemispherical shells, a plurality of separators and a plurality of attachment balls are arranged inside the filler ball, the separators are semicircular, and the plurality of separators are coaxially arranged along the diameter, a plurality of second water-permeable holes are evenly arranged on the separators, support balls are arranged at both ends of the diameter of the separators, and ball grooves matching the support balls are arranged on the inner wall of the hemispherical shells.

[0007] A wastewater biochemical treatment pool based on the above-mentioned filler for wastewater biochemical treatment includes a pool body, a plurality of first limiting grooves are symmetrically arranged on the inner walls on both sides of the pool body, a partition is provided in the middle of the pool body, a plurality of second limiting grooves are symmetrically arranged on both sides of the partition, a filling rack is provided between the second limiting grooves and the corresponding first limiting grooves, the filling rack includes an outer frame, a plurality of through holes and a plurality of snap-fit ​​grooves are provided on the top and bottom of the outer frame, the snap-fit ​​grooves are vertically arranged with the corresponding through holes, a snap-fit ​​block is provided in the snap-fit ​​groove, a connecting rope is provided between the corresponding two snap-fit ​​blocks, and a plurality of filling balls are equidistantly fixed on the connecting rope.

[0008] As a preferred technical solution of the present invention, a lifting handle is provided on one side of the top end of the outer frame, and two adjacent filling racks on the same side of the pool body are arranged in opposite directions.

[0009] As a preferred technical solution of the present invention, two third limiting grooves are provided at one end of the partition, two fourth limiting grooves are provided on the inner wall of one end of the pool body, and a intercepting plate is provided between the third limiting groove and the corresponding fourth limiting groove.

[0010] As a preferred technical solution of the present invention, the cross section of the through hole matches the cross section of the engaging groove, and the depth of the engaging groove is smaller than the depth of the through hole.

[0011] As a preferred technical solution of the present invention, the connecting rope is an elastic rope.

[0012] As a preferred technical solution of the present invention, the filler frame is arranged at an angle of 45° to the inner wall of the cell body and the partition.

[0013] As a preferred technical solution of the present invention, the connecting surfaces of the two hemispherical shells are provided with connecting grooves and connecting claws that cooperate with each other.

[0014] As a preferred technical solution of the present invention, the angles between two adjacent separators among the plurality of separators are equal, and the plurality of attached balls are evenly distributed between two adjacent separators.

[0015] As a preferred technical solution of the present invention, the adhesion ball is made of polypropylene plastic foam material.

[0016] The beneficial effects of the present invention are as follows:

[0017] 1. A filler for biochemical treatment of wastewater of the present invention comprises a plurality of first water-permeable holes evenly arranged on a hemispherical shell of a filler ball, a plurality of separators and a plurality of attached balls being arranged inside the filler ball, the separators being semicircular and coaxially arranged along the diameter, a plurality of second water-permeable holes being evenly arranged on the separators, support balls being arranged at both ends of the diameter of the separators, and ball grooves cooperating with the support balls being arranged on the inner wall of the hemispherical shell. When sewage flows through the filler frame and enters the filler ball, the separators rotate in an undirected manner with the support balls as axes under the impact of the sewage, so as to stir the attached balls inside the filler ball, so that the attached balls are evenly and fully contacted with the sewage, so as to carry out sewage purification steps such as biofilm formation and adsorption, thereby improving biofilm formation speed, biofilm formation amount and oxygen utilization rate, and the structure is simple, not easy to be blocked, and the production cost is reduced.

[0018] 2. The filler for biochemical treatment of wastewater of the present invention ensures that the attached balls are evenly distributed in the filler balls by setting the angles between two adjacent separators among a plurality of separators to be equal, and the plurality of attached balls are evenly distributed between two adjacent separators, thereby improving the biofilm formation speed, biofilm formation amount and oxygen utilization rate.

[0019] 3. A filler for biochemical treatment of wastewater of the present invention is provided with mutually matching connecting grooves and connecting claws on the connecting surfaces of the two hemispherical shells of the filler balls, so as to facilitate the disassembly and fastening of the filler balls and the replacement of the internal attached balls, so that the filler balls can be reused and material waste can be avoided.

[0020] 4. A wastewater biochemical treatment pool according to the present invention has a plurality of first limit grooves symmetrically arranged on the inner walls on both sides of the pool body, a partition is arranged in the middle of the pool body, a plurality of second limit grooves are symmetrically arranged on both sides of the partition, a filling rack is arranged between the second limit grooves and the corresponding first limit grooves, a lifting handle is arranged on one side of the top of the outer frame, and two adjacent filling racks on the same side of the pool body are arranged in opposite directions. The filling rack with the lifting handle on the same side is lifted by a hoist, and the filling rack with the lifting handle on the other side continues to work. Therefore, there is no need to stop the flow of sewage, which facilitates the continuous operation of the present invention and is also convenient for adjusting the sealing of the filling rack according to needs to maximize the adsorption rate of the filling balls.

[0021] 5. A wastewater biochemical treatment pool according to the present invention comprises an outer frame, a plurality of through holes and a plurality of snap-fit ​​grooves are arranged on the top and the bottom of the outer frame, the snap-fit ​​grooves are arranged vertically to the corresponding through holes, snap-fit ​​blocks are arranged in the snap-fit ​​grooves, a connecting rope is arranged between two corresponding snap-fit ​​blocks, a plurality of filler balls are fixed on the connecting ropes at equal distances, the snap-fit ​​blocks are passed through the through holes, rotated 90°, and then matched with the snap-fit ​​grooves, so that the filler balls can be fixed in the outer frame conveniently, and the filler balls can be removed by reverse operation, so that the installation and removal of the filler balls are convenient, and the replacement of the filler balls is convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0023] Figure 1 It is a structural schematic diagram of a filler for wastewater biochemical treatment and a filler ball for a wastewater biochemical treatment pool according to the present invention;

[0024] Figure 2 It is a structural schematic diagram of a filler for wastewater biochemical treatment and a filler ball cross section of a wastewater biochemical treatment pool according to the present invention;

[0025] Figure 3 It is a structural schematic diagram of a filler for biochemical treatment of wastewater and a tank body of a biochemical treatment tank for wastewater according to the present invention;

[0026] Figure 4 It is a structural schematic diagram of a filler for wastewater biochemical treatment and a filler frame for a wastewater biochemical treatment pool according to the present invention;

[0027] Figure 5 The present invention is a schematic diagram of the disassembled structure of a filler for wastewater biochemical treatment and a filler frame of a wastewater biochemical treatment pool.

[0028] In the figure: 1, tank body; 2, first limiting groove; 3, partition; 4, second limiting groove; 5, filling frame; 6, outer frame; 7, through hole; 8, snap-fit ​​groove; 9, filling ball; 10, connecting rope; 11, snap-fit ​​block; 12, lifting handle; 13, hemispherical shell; 14, first water-permeable hole; 15, separator; 16, second water-permeable hole; 17, supporting ball; 18, attachment ball; 19, connecting groove; 20, third limiting groove; 21, fourth limiting groove; 22, intercepting plate. DETAILED DESCRIPTION

[0029] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0030] Example: Figure 1-2As shown, a filler for wastewater biochemical treatment of the present invention includes a filler ball 9, the filler ball 9 includes two hemispherical shells 13 that cooperate with each other, and the hemispherical shells 13 are evenly provided with a plurality of first water-permeable holes 14. The interior of the filler ball 9 is provided with a plurality of partitions 15 and a plurality of attachment balls 18, and the attachment balls 18 are made of polypropylene plastic foam material. EPP polypropylene plastic foam particles are an environmentally friendly foam material. As a filler for sewage treatment, it can help adsorb pollutants in the water while fixing microorganisms, thereby improving the removal rate of pollutants in the water. At the same time, the EPP material has good thermal insulation performance and good thermal insulation effect on sewage. When the EPP polypropylene plastic foam particles are made as fillers, the fixed microorganisms can be kept in a relatively constant temperature state, and the microorganisms have a high survival rate and good adaptability. In addition, the EPP polypropylene plastic foam particles as fillers have the advantages of fast biofilm growth speed, large biofilm growth amount, high oxygen utilization rate, and not easy to be blocked. This application uses EPP material as the main carrier of microorganisms. Compared with existing carrier materials, the porosity is conducive to the attachment and growth of microorganisms, and the biomass increases. The EPP polypropylene plastic foam particles are in a floating state inside the filler ball, which is not easy to cause blockage and can effectively improve the oxygen utilization rate. As a new type of sewage biological treatment filler, EPP polypropylene plastic foam particles have more excellent treatment performance than traditional domestic fillers, because a certain proportion of activated carbon is added during the foaming process, which greatly improves the adsorption capacity of pollutants. At the same time, it has porosity, increases the specific surface area, and greatly increases the fixed biomass. In addition, EPP polypropylene foam particles are extremely lightweight, impact-resistant, high toughness and floating properties. Its material is stable, has low water absorption, good thermal insulation, long service life, biodegradation resistance, and does not need to be replaced for a long time, which greatly saves the operating cost of water purification equipment.

[0031] The separator 15 is semicircular, and multiple separators 15 are coaxially arranged along the diameter. Multiple second water-permeable holes 16 are evenly arranged on the separator 15. Support balls 17 are arranged at both ends of the diameter of the separator 15. Ball grooves that match the support balls 17 are arranged on the inner wall of the hemispherical shell 13. Under the impact of the water flow, the assembly composed of multiple separators 15 rotates with the support balls 17 as the axis, which has a stirring effect on the attached balls 18 inside the packing balls 9, thereby improving the biofilm forming speed, biofilm forming amount and oxygen utilization rate. The connecting surfaces of the two hemispherical shells 13 are provided with mutually matching connecting grooves 19 and connecting claws, which are convenient for the disassembly and installation of the packing balls 9. After the packing balls 9 work for a long time, it is convenient to replace the attached balls 18 inside to avoid affecting the subsequent use effect. The angles between two adjacent separators 15 in the multiple separators 15 are equal, and multiple attached balls 18 are evenly distributed between two adjacent separators 15, ensuring that the attached balls 18 are evenly distributed in the packing balls 9, thereby improving the biofilm forming speed, biofilm forming amount and oxygen utilization rate.

[0032] A wastewater biochemical treatment tank based on the above-mentioned wastewater biochemical treatment filler, such as Figure 3-5 As shown, it includes a tank body 1, wherein a plurality of first limiting grooves 2 are symmetrically arranged on the inner walls on both sides of the tank body 1, a partition 3 is arranged in the middle of the tank body 1, and a plurality of second limiting grooves 4 are symmetrically arranged on both sides of the partition 3, and a filling frame 5 is arranged between the second limiting groove 4 and the corresponding first limiting groove 2, and the filling frame 5 is arranged at a 45° angle with the inner wall of the tank body 1 and the partition 3, so as to increase the contact area between the sewage and the filling frame 5 when the sewage flows through the tank body 1, and improve the adsorption effect of organic pollutants in the sewage. The filling frame 5 includes an outer frame 6, and a lifting handle 12 is arranged on one side of the top of the outer frame 6, so as to facilitate the removal from the tank body 1 through the filling frame 5, and two adjacent filling frames 5 on the same side of the tank body 1 are arranged in reverse, so that the lifting handles 12 on the filling frames 5 on the same side of the tank body 1 are staggered and arranged on the left and right sides, and a group of filling frames 5 can be lifted by the lifting handle 12 on the same side, so as to control the setting density of the filling frames 5, and the filling frames 5 can be replaced without interrupting the flow of sewage. Two third limiting grooves 20 are provided at one end of the partition 3, and two fourth limiting grooves 21 are provided on the inner wall of one end of the pool body 1. A cut-off plate 22 is provided between the third limiting groove 20 and the corresponding fourth limiting groove 21. The two cut-off plates 22 form an angle, and the water outlet of the pool body 1 is located at the angle, which is convenient for controlling the cut-off. Multiple through holes 7 and multiple clamping grooves 8 are provided at the top and bottom of the outer frame 6. The clamping grooves 8 are vertically arranged with the corresponding through holes 7. A clamping block 11 is provided in the clamping groove 8. A connecting rope 10 is provided between the corresponding two clamping blocks 11, and multiple filler balls 9 are fixed on the connecting rope 10 at equal distances. The cross section of the through hole 7 is consistent with the cross section of the clamping groove 8, and both are consistent with the cross section of the clamping block 11. The depth of the clamping groove 8 is less than the depth of the through hole 7. After the clamping block 11 passes through the through hole 7, it is rotated 90° and matched with the clamping groove 8, so as to facilitate the fixing of the filler ball 9 in the outer frame 6. The connecting rope 10 is an elastic rope. When the engaging block 11 is matched with the corresponding engaging groove 8, the elastic rope is in a stretched state to prevent the position of the packing ball 9 from floating. When the packing ball 9 needs to be removed, the elastic rope contracts and the engaging block 11 is separated from the outer frame 6 through the through hole 7. In summary, the above-mentioned structural setting makes it convenient to replace the packing ball 9 and the packing frame 5 in the wastewater biochemical treatment tank, and it is convenient to adjust the density of the packing frame 5 according to the sewage pollution situation, which greatly improves the sewage treatment efficiency.

[0033] During operation, the two ends of the pool body 1 are respectively provided with a water inlet and a water outlet. During normal operation, the intercepting plate 22 is taken out, and the sewage is discharged into the pool body 1 from the water inlet. The sewage flows through the packing frame 5 and enters the packing ball 9. Under the impact of the sewage, the separator 15 rotates in an undirected manner with the supporting ball 17 as the axis, and stirs the attached balls 18 inside the packing ball 9, so that the attached balls 18 are evenly and fully in contact with the sewage, and the sewage purification steps such as film formation and adsorption are performed. When the packing ball 9 needs to be replaced, the packing frame 5 with the lifting handle 12 on the same side is lifted by the hoist, and the packing frame 5 with the lifting handle 12 on the other side continues to work, so there is no need to stop the flow of sewage, which facilitates the continuous operation of the present invention. When two groups of packing frames 5 need to be replaced at the same time, the intercepting plate 22 is installed between the third limiting groove 20 and the fourth limiting groove 21. The two intercepting plates 22 cooperate to prevent sewage from flowing into the water outlet, and the two groups of packing frames 5 can be replaced at the same time. After removing the packing frame 5, take out the snap block 11 from the snap groove 8, rotate it 90 degrees, and then pass through the through hole 7 under the elastic force of the connecting rope 10, so that the packing balls 9 of the same group can be taken out from the outer frame 6, and then the packing balls 9 can be taken out from the connecting rope 10, replaced and reinstalled, and reused to avoid material waste. When replacing the packing balls 9, it is not necessary to replace the entire packing balls 9. The material of the packing balls 9 can be corrosion-resistant and can be used for a long time. The two hemispherical shells 13 of the packing balls 9 can be separated, the attached balls 18 can be replaced, and then the two hemispherical shells 13 can be covered to avoid waste of resources.

[0034] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A wastewater biochemical treatment pool, comprising a pool body (1), characterized in that: A plurality of first limiting grooves (2) are symmetrically arranged on the inner walls of both sides of the pool body (1), a partition (3) is arranged in the middle of the pool body (1), a plurality of second limiting grooves (4) are symmetrically arranged on both sides of the partition (3), a filling frame (5) is arranged between the second limiting grooves (4) and the corresponding first limiting grooves (2), the number of the filling frames is multiple, and they are distributed in a fishbone shape on both sides of the partition, the filling frame (5) comprises an outer frame (6), the top and bottom of the outer frame (6) are both provided with a plurality of through holes (7) and a plurality of snap-fit ​​grooves (8), the snap-fit ​​grooves (8) are arranged vertically with the corresponding through holes (7), a snap-fit ​​block (11) is matched in the snap-fit ​​groove (8), a connecting rope (10) is arranged between the two corresponding snap-fit ​​blocks (11), and a plurality of filling balls (9) are fixed on the connecting rope (10) at equal distances; The packing ball (9) comprises two mutually matched hemispherical shells (13), a plurality of first water permeable holes (14) are evenly arranged on the hemispherical shells (13), a plurality of separators (15) and a plurality of attached balls (18) are evenly arranged inside the packing ball (9), the separators (15) are semicircular, and the plurality of separators (15) are coaxially arranged along the diameter, a plurality of second water permeable holes (16) are evenly arranged on the separators (15), support balls (17) are arranged at both ends of the diameter of the separators (15), and a ball groove matched with the support balls (17) is arranged on the inner wall of the hemispherical shell (13), and under the impact of sewage, the separators (15) rotate in an undirected manner with the support balls (17) as the axis, so as to stir the attached balls (18) inside the packing ball (9), so that the attached balls (18) are evenly and fully in contact with the sewage.

2. A wastewater biochemical treatment pool according to claim 1, characterized in that: A lifting handle (12) is provided on one side of the top end of the outer frame (6), and two adjacent filling frames (5) on the same side of the tank body (1) are arranged in opposite directions.

3. A wastewater biochemical treatment pool according to claim 1, characterized in that: Two third limiting grooves (20) are provided at one end of the partition plate (3), two fourth limiting grooves (21) are provided on the inner wall of one end of the pool body (1), and a cut-off plate (22) is provided between the third limiting grooves (20) and the corresponding fourth limiting grooves (21).

4. A wastewater biochemical treatment pool according to claim 1, characterized in that: The cross section of the through hole (7) matches the cross section of the engaging groove (8), and the depth of the engaging groove (8) is smaller than the depth of the through hole (7).

5. A wastewater biochemical treatment pool according to claim 1, characterized in that: The connecting rope (10) is an elastic rope.

6. A wastewater biochemical treatment pool according to claim 1, characterized in that: The filler frame (5) is arranged at an angle of 45° to the inner wall of the tank body (1) and the partition plate (3).

7. A wastewater biochemical treatment pool according to claim 1, characterized in that: The connecting surfaces of the two hemispherical shells (13) are provided with connecting grooves (19) and connecting claws that match each other.

8. A wastewater biochemical treatment pool according to claim 1, characterized in that: The included angles between two adjacent separators (15) among the plurality of separators (15) are equal, and the plurality of attachment balls (18) are evenly distributed between the two adjacent separators (15).

9. A wastewater biochemical treatment pool according to claim 1, characterized in that: The adhesion ball (18) is made of polypropylene plastic foam material.

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