Combined biofilm process sewage treatment equipment

Abstract

The invention relates to the technical field of sewage treatment, in particular to combined biofilm process sewage treatment equipment which comprises a treatment machine box and a sewage filtering box arranged at the bottom of the treatment machine box. A water passing tank, a plurality of filtering fences arranged in the water passing tank and biological membrane group frames arranged in the filtering fences are arranged in the treatment case; the filtering fences are sequentially arranged at equal intervals along the inner cavity of the water tank, the adjacent filtering fences are fixed through the connecting fences, and the biological membrane group frames are mounted in the filtering fences in an inserting manner; the biological membrane group rack comprises a group rack support frame, an assembly plug-in arranged at the periphery of the group rack support frame, a membrane layer fence arranged in an inner frame of the group rack support frame, and a plurality of filling pieces mounted in the membrane layer fence; and the assembly support frame is mounted in the filter fence through the assembly plug-in. The combined biofilm process sewage treatment equipment designed by the invention adopts a modular design concept, is high in structural combination degree of freedom, and can effectively adapt to treatment of water bodies with different pollution degrees.

Description

Technical Field

[0001] The invention relates to the technical field of sewage treatment, in particular to a combined biofilm sewage treatment device. Background Art

[0002] The biofilm method is a type of aerobic biological treatment technology for wastewater that is parallel to the activated sludge method. It is a fixed film method and is an artificial and intensified process of sewage soil self-purification. It mainly removes soluble and colloidal organic pollutants in wastewater. The treatment technologies include biological filters, biological rotary discs, biological contact oxidation equipment and biological fluidized beds. The existing biofilm sewage treatment equipment structures are mostly fixed, and cannot be combined and adjusted according to actual needs during use. The functionality is relatively single and the use is not flexible enough.

[0003] A Chinese patent (authorization announcement number: CN219136505U) discloses a combined biofilm sewage treatment equipment, in which the biofilm fixing frame and the first partition plate and the second partition plate can be spliced ​​and combined inside the sewage treatment equipment body, and the number of biofilm fixing frames and the placement of the first partition plate and the second partition plate can be adjusted according to actual needs; however, the patent does not specify that if the biofilm is loaded, from a structural point of view, the biofilm fixing frame and the first partition plate and the second partition plate are still fixedly installed, and the effect of combined adjustment is not fundamentally achieved. Summary of the Invention

[0004] The purpose of the present invention is to provide a combined biofilm sewage treatment equipment to solve the problems raised in the above background technology.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] A combined biofilm sewage treatment device comprises a treatment chassis and a sewage filter box arranged at the bottom of the treatment chassis;

[0007] The processing box is equipped with a water box, a plurality of filter bars arranged in the water box, and a biofilm assembly frame arranged in the filter bars; the filter bars are arranged in sequence and at equal intervals along the inner cavity of the water box, and adjacent filter bars are fixed by connecting bars. The biofilm assembly frame is installed in the filter bars in a plug-in manner;

[0008] The sewage filter box is arranged directly below the water tank and is connected to the inner cavity of the water tank. The sewage filter box has a built-in sewage guide area.

[0009] The biofilm assembly frame includes an assembly frame, an assembly plug-in arranged on the periphery of the assembly frame, a membrane layer column arranged on the inner frame of the assembly frame, and a plurality of filling pieces installed in the membrane layer column; the assembly frame is installed in the filter column through the assembly plug-in.

[0010] As a further solution of the present invention: the water box includes a water box frame, water gates arranged on the box walls on both sides of the water box frame, and a treatment area arranged in the inner cavity of the water box frame; the biofilm assembly frame runs through the treatment area and divides the treatment area into several treatment branch chambers.

[0011] As a further solution of the present invention: the sewage filter box includes a sewage filter box frame arranged directly below the water tank, a guide plate arranged in the sewage filter box frame, and a filter outlet arranged at the end of the guide plate; the sewage guide section includes a guide trough installed at the filter outlet, a conveying rack installed in the guide trough, a sewage guide roller arranged on the conveying rack, and a sewage guide auger installed on the sewage guide roller.

[0012] As a further solution of the present invention: a sewage pump is provided at the bottom of each of the processing branch chambers, and the sewage filter box frame is connected to the sewage pump.

[0013] As a further solution of the present invention: a support frame is provided on the bottom plane of the water box frame, and the sewage filter box frame is fixedly installed on the bottom of the support frame by means of mounting bolts.

[0014] As a further solution of the present invention: the filter column includes a supporting column frame installed on the upper edge of the water tank frame, an insertion groove arranged in the supporting column frame, an insertion entrance arranged at the outer end of the insertion groove, and a frame board arranged below the insertion groove, and the frame board is provided with a content slot.

[0015] As a further solution of the present invention: the assembly frame is assembled in the content slot, and the inner edge of the insertion slot is provided with a plurality of positioning blocks and a supporting frame provided on the positioning blocks; the assembly plug-in includes a frame provided on the periphery of the assembly frame, the frame side frame is provided on the supporting frame, the bottom of the frame frame is provided with an insertion slot, and the supporting frame is provided with an insertion block embedded in the insertion slot.

[0016] As a further solution of the present invention: the bottom end of the insertion groove is also provided with a plurality of reinforcement blocks, and a clamping fulcrum arranged on the reinforcement block; the assembly plug-in also includes a combination side block arranged on the edge of the assembly frame, and a combination clamp installed on the combination side block and engaged with the clamping fulcrum.

[0017] As a further solution of the present invention: the membrane layer fence includes a membrane layer frame arranged on the inner edge of the group frame support frame, a filter membrane layer arranged on the inner frame surface of the membrane layer frame, and a plurality of support group frames arranged in the filter membrane layer; the filling piece includes an assembly cylinder installed in the corresponding support group frame, and a soft material core arranged in the assembly cylinder; the assembly cylinder and the soft material core both adopt a through-hole structure; adjacent support group frames are in contact with each other.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] 1. Design: The sewage is introduced into the water tank. The inner cavity of the water tank is sequentially provided with multiple biofilm frames. The biofilm frames block and filter the sewage during its circulation, and utilize the ecosystem composed of the high-density bacteria in the biofilm frames to purify the sewage, thereby effectively carrying out the sewage process; the blocked dirt falls to the bottom of the water tank and falls into the filter box, where the dirt gathers and is discharged through the sewage guide section.

[0020] The water tank and the biofilm frame are designed to be a combined structure. A filter bar is set in the water tank, and the biofilm frame is installed in the filter bar in a plug-in manner. Therefore, different numbers of biofilm frames can be configured according to the treatment conditions of the sewage. In this way, the blocking effect of the biofilm frame on the water flow is reduced while ensuring the purification of the sewage.

[0021] The biofilm frame itself is also designed as a modular structure, with the frame support frame as the outer frame, and a membrane layer column and several filling pieces built in. In the preparation stage of water purification, filling pieces of different materials can be filled in according to the composition of the water body, and the filling pieces can be configured in different numbers to ensure the water purification effect while avoiding excessive ecological problems.

[0022] The combined biofilm sewage treatment equipment designed in the present invention adopts a modular design concept, has a high degree of freedom in structural combination, and can effectively adapt to the treatment of water bodies with different pollution levels.

[0023] It should be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The accompanying drawings are incorporated into and constitute a part of the specification to illustrate embodiments consistent with the present application and, together with the specification, serve to explain the principles of the present application. These drawings and the accompanying description are not intended to limit the scope of the present application in any way, but rather to illustrate the concepts of the present application to those skilled in the art by reference to specific embodiments.

[0025] Figure 1 This is a schematic diagram of the overall structure of the combined biofilm sewage treatment equipment provided by an embodiment of the present invention.

[0026] Figure 2 Schematic diagram of the assembly of the biofilm assembly frame and the filter column provided in an embodiment of the present invention.

[0027] Figure 3 This is a structural schematic diagram of a water tank provided in an embodiment of the present invention.

[0028] Figure 4 This is a structural diagram of a sewage filter box provided in an embodiment of the present invention.

[0029] Figure 5 A schematic diagram of the structure of a filter bar provided in an embodiment of the present invention.

[0030] Figure 6 For the present invention Figure 3 Schematic diagram of the structure of area A in the middle.

[0031] Figure 7 For the present invention Figure 2 Schematic diagram of the structure of area B in the middle.

[0032] In the figure: 11, treatment chassis; 12, filter box; 13, water box; 14, connecting bar; 15, filter bar; 16, biofilm assembly frame; 17, sewage guide area; 21, assembly frame; 22, assembly plug-in; 23, membrane layer bar; 24, filling piece; 31, water box frame; 32, water gate; 33, treatment area; 34, treatment branch chamber; 35, sewage pump; 41, filter box frame; 42, guide plate; 43, filter outlet; 44, guide trough; 45, conveyor frame; 46, sewage guide roller; 4 7. Export auger; 48. Support frame; 49. Mounting bolt; 51. Support fence frame; 52. Insertion groove; 53. Insertion entrance; 54. Scaffolding plate; 55. Content notch; 61. Positioning block; 62. Support frame; 63. Insertion groove; 64. Insertion block; 65. Combined edge block; 66. Reinforcement block; 67. Clamping fulcrum; 68. Combined clamp; 69. Scaffolding frame; 71. Filter membrane layer; 72. Support group frame; 73. Assembly cylinder; 74. Soft material core; 75. Membrane layer frame. DETAILED DESCRIPTION

[0033] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention, and examples thereof are shown in the accompanying drawings. When the following description refers to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements.

[0034] Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0035] The specific implementation of the present invention is described in detail below with reference to specific embodiments.

[0036] In one embodiment, see Figure 1 , provides a combined biofilm sewage treatment equipment, including a treatment box 11, and a sewage filter box 12 arranged at the bottom of the treatment box 11;

[0037] The treatment box 11 is equipped with a water box 13, a plurality of filter bars 15 disposed in the water box 13, and a biofilm assembly frame 16 disposed in the filter bars 15. The filter bars 15 are arranged in a sequence and at equal intervals along the inner cavity of the water box 13. Adjacent filter bars 15 are fixed by connecting bars 14. The biofilm assembly frame 16 is installed in the filter bars 15 in a plug-in manner.

[0038] The sewage filter box 12 is arranged directly below the water box 13 and is connected to the inner cavity of the water box 13. The sewage filter box 12 has a built-in sewage guide section 17.

[0039] See also Figure 2 The biofilm assembly frame 16 includes an assembly frame 21, an assembly plug-in 22 arranged on the periphery of the assembly frame 21, a membrane layer column 23 arranged on the inner frame of the assembly frame 21, and a plurality of filling pieces 24 installed in the membrane layer column 23; the assembly frame 21 is installed in the filter column 15 through the assembly plug-in 22.

[0040] This embodiment is used for a biofilm wastewater treatment process. The treatment chassis 11 and the filter tank 12 at the bottom can be loaded into the overall wastewater treatment process flow. The treatment chassis 11 is equipped with a water tank 13, which is the main implementation structure for wastewater treatment. Water inlet pipes and output pipes are provided on both sides of the treatment chassis 11. Sewage is introduced from the treatment chassis 11 into the water tank 13. The inner cavity of the water tank 13 is sequentially provided with multiple biofilm frames 16. The biofilm frames 16 block and filter the sewage during the flow of sewage, and utilize the ecosystem composed of the high-density bacterial community in the biofilm frames 16 to purify the sewage, thereby effectively carrying out the sewage process; the blocked dirt falls to the bottom of the water tank 13 and falls into the filter tank 12, and the dirt gathers in the filter tank 12 and is discharged through the sewage guide section 17.

[0041] In this embodiment, the water box 13 and the biofilm frame 16 are designed to be a combined structure. A filter bar 15 is provided in the water box 13, and the biofilm frame 16 is installed in the filter bar 15 in a plug-in manner. Therefore, different numbers of biofilm frames 16 can be configured according to the condition of the sewage to be treated. In this way, the blocking effect of the biofilm frame 16 on the water flow is reduced while ensuring the purification of the sewage.

[0042] The biofilm assembly frame 16 itself is also designed as a modular structure, with the assembly frame 21 as the outer frame, and a membrane layer column 23 and a plurality of filling pieces 24 built in. In the preparation stage of water purification, the filling pieces 24 of different materials can be filled according to the composition of the water body, and the filling pieces 24 can be configured in different numbers to ensure the water purification effect while avoiding excessive ecological problems.

[0043] The combined biofilm sewage treatment equipment designed in this embodiment adopts a modular design concept, has a high degree of freedom in structural combination, and can effectively adapt to the treatment of water bodies with different pollution levels.

[0044] In one embodiment, see Figure 3 and Figure 4 Regarding the specific implementation structure of the water box 13 and the sewage filter box 12, this embodiment is designed as follows:

[0045] The water box 13 includes a water box frame 31, water gates 32 arranged on the box walls on both sides of the water box frame 31, and a treatment area 33 arranged in the inner cavity of the water box frame 31; the biofilm assembly frame 16 runs through the treatment area 33 and divides the treatment area 33 into several treatment branch chambers 34.

[0046] The sewage filter box 12 includes a sewage filter box frame 41 arranged directly below the water box 13, a guide plate 42 arranged in the sewage filter box frame 41, and a filter outlet 43 arranged at the end of the guide plate 42; the sewage guide section 17 includes a derivation groove 44 installed at the filter outlet 43, a conveying rack 45 installed in the derivation groove 44, a sewage guide roller 46 arranged on the conveying rack 45, and a sewage guide auger 47 installed on the sewage guide roller 46; a sewage pump 35 is provided at the bottom of the processing branch chamber 34, and the sewage filter box frame 41 is connected to the sewage pump 35.

[0047] The water tank 13 is designed as a through-body structure. Water enters from the water gate 32 on one side, is processed by the biofilm assembly 16, and then flows out from the water gate 32 on the other side. The treatment interval 33 is divided into several treatment branch chambers 34 by the biofilm assembly 16. The intercepted dirt is deposited at the bottom of the treatment branch chamber 34, falls into the filter box frame 41 through the sewage pump 35, slides along the guide plate 42 to the filter outlet 43, and falls into the outlet trough 44 from the filter outlet 43. The guide roller 46 is used as a driving tool to drive the outlet auger 47 to move to discharge the dirt.

[0048] Preferably, a support frame 48 is provided on the bottom plane of the water box frame 31, and the sewage filter box frame 41 is fixedly installed on the bottom of the support frame 48 through the mounting bolts 49. The sewage filter box 12 can also be fixedly installed with the water box 13 in an assembled manner.

[0049] In one embodiment, see Figure 5 and Figure 6 Regarding the specific assembly implementation structure of the filter column 15 and the biofilm assembly frame 16, this embodiment is designed as follows:

[0050] The filter column 15 includes a support column frame 51 mounted on the upper edge of the water tank frame 31, an insertion slot 52 provided in the support column frame 51, an insertion inlet 53 provided at the outer end of the insertion slot 52, and a frame plate 54 provided below the insertion slot 52. The frame plate 54 is provided with a content slot 55. The assembly plug-in 22 on the periphery of the assembly support frame 21 is assembled and inserted along the track of the insertion slot 52. The assembly support frame 21 is assembled in the content slot 55. The main body of the membrane column 23 and the filler 24 passes through the content slot 55 and is assembled into the inner cavity of the water tank frame 31.

[0051] Regarding the specific installation implementation structure of the assembly plug-in 22, this embodiment is designed as follows:

[0052] The inner edge of the insertion groove 52 is provided with several positioning blocks 61 and a supporting frame 62 provided on the positioning block 61; the assembly plug-in 22 includes a frame frame 69 provided on the periphery of the assembly frame 21, the frame frame 69 is mounted on the supporting frame 62, and the bottom of the frame frame 69 is provided with an insertion groove 63, and the supporting frame 62 is provided with an insertion block 64 embedded in the insertion groove 63.

[0053] The bottom end of the insertion groove 52 is also provided with a plurality of reinforcement blocks 66 and a clamping fulcrum 67 provided on the reinforcement block 66; the assembly plug-in 22 also includes a combination side block 65 provided on the edge of the assembly frame 21, and a combination clamp 68 installed on the combination side block 65 and engaged with the clamping fulcrum 67.

[0054] This embodiment features a dual positioning structure, with the frame frame 69 mounted on the support frame 62 to support the weight of the entire assembly frame 21. The bottom of the frame frame 69 is then assembled with the interlocking block 64 and the interlocking groove 63 of the support frame 62, thus creating a snap-fitting and secure effect on the assembly frame 21 when supporting it. A plurality of reinforcement blocks 66 are also provided below the interlocking groove 52, and a corresponding assembly edge block 65 is provided on the assembly frame 21. The two sides are assembled together using an assembly clamp 68 and a clamping fulcrum 67, thereby forming a point support structure that further enhances the overall reinforcement and support effect.

[0055] In one embodiment, see Figure 5 and Figure 6 Regarding the internal structure of the biofilm assembly frame 16, this embodiment is designed as follows:

[0056] The membrane layer fence 23 includes a membrane layer frame 75 arranged on the inner edge of the group frame 21, a filter membrane layer 71 arranged on the inner frame surface of the membrane layer frame 75, and a plurality of support group frames 72 arranged in the filter membrane layer 71. The combined edge block 65 is arranged on the side edge of the corresponding support group frame 72, that is, a point support structure is provided on the periphery of each group of support group frames 72.

[0057] The filling member 24 includes an assembly cylinder 73 installed in the corresponding support group frame 72, and a soft material core 74 arranged in the assembly cylinder 73; the assembly cylinder 73 and the soft material core 74 both adopt a through-hole structure; adjacent support group frames 72 are fitted together.

[0058] The filter membrane layer 71 is a water filtration input structure, and the soft material core 74 is a carrier for loading biological materials. The soft material core 74 has a built-in ecosystem composed of a highly dense aerobic bacteria, anaerobic bacteria, facultative bacteria, fungi, protozoa and algae. During sewage treatment, an external oxygenation structure is provided, and microorganisms gather and attach to the surface of the soft material core 74 to form a biofilm. When the oxygenated sewage flows through the filler at a certain flow rate, the microorganisms in the biofilm absorb and decompose organic matter in the water, thereby purifying the sewage. At the same time, the microorganisms also proliferate, and the biofilm thickens accordingly. When the biofilm grows to a certain thickness, the oxygen diffusion into the biofilm is restricted, and its surface remains aerobic, while the inner layer will be anoxic or even anaerobic, which will eventually lead to the shedding of the biofilm. Subsequently, a new biofilm will continue to grow on the surface of the filler, and the cycle will continue to purify the sewage.

[0059] In this embodiment, the soft material core 74 can be installed with soft material cores 74 filled with different materials according to the composition of the water body, or the soft material cores 74 made of different biomass materials can be installed in combination with each other, so as to assemble the most suitable biological reaction environment for water with different pollution qualities and improve the water purification effect.

[0060] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the invention can be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations that come within the meaning and range of equivalents of the claims be embraced therein.

[0061] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A combined biofilm wastewater treatment device, comprising a treatment box (11) and a sewage filter box (12) arranged at the bottom of the treatment box (11); characterized in that: The treatment box (11) is equipped with a water box (13), a plurality of filter bars (15) arranged in the water box (13), and a biofilm assembly frame (16) arranged in the filter bars (15); the filter bars (15) are arranged in sequence and at equal intervals along the inner cavity of the water box (13), adjacent filter bars (15) are fixed by connecting bars (14), and the biofilm assembly frame (16) is installed in the filter bars (15) in a plug-in manner; The dirt filter box (12) is arranged directly below the water passage box (13) and is connected to the inner cavity of the water passage box (13); the dirt filter box (12) is provided with a dirt guide section (17); The biofilm assembly frame (16) comprises an assembly frame support frame (21), an assembly plug-in (22) arranged on the periphery of the assembly frame support frame (21), a membrane layer column (23) arranged on the inner frame of the assembly frame support frame (21), and a plurality of filling pieces (24) installed in the membrane layer column (23); the assembly frame support frame (21) is installed in the filter column (15) through the assembly plug-in (22).

2. The combined biofilm wastewater treatment equipment according to claim 1, characterized in that: The water-passing box (13) comprises a water-passing box frame (31), water-passing gates (32) arranged on the box walls on both sides of the water-passing box frame (31), and a treatment area (33) arranged in the inner cavity of the water-passing box frame (31); the biofilm assembly frame (16) runs through the treatment area (33) and divides the treatment area (33) into a plurality of treatment branch cavities (34).

3. The combined biofilm wastewater treatment equipment according to claim 2 is characterized in that: The waste filter box (12) comprises a waste filter box frame (41) arranged directly below the water box (13), a guide plate (42) arranged in the waste filter box frame (41), and a filter outlet (43) arranged at the end of the guide plate (42); the waste guide section (17) comprises a guide groove (44) installed at the filter outlet (43), a conveying frame (45) installed in the guide groove (44), a waste guide roller (46) arranged on the conveying frame (45), and a guide auger (47) installed on the waste guide roller (46).

4. The combined biofilm wastewater treatment equipment according to claim 3 is characterized in that: A sewage pump (35) is provided at the bottom of each of the processing branch chambers (34), and the sewage filter box frame (41) is connected to the sewage pump (35).

5. The combined biofilm wastewater treatment equipment according to claim 3 is characterized in that: A support frame plate (48) is provided on the bottom plane of the water box frame (31), and the dirt filter box frame (41) is fixedly mounted on the bottom of the support frame plate (48) via a mounting bolt (49).

6. The combined biofilm wastewater treatment equipment according to any one of claims 1 to 5, characterized in that: The filter bar (15) comprises a support bar frame (51) installed on the upper edge of the water box frame (31), an insertion groove (52) arranged in the support bar frame (51), an insertion inlet (53) arranged at the outer end of the insertion groove (52), and a frame plate (54) arranged below the insertion groove (52), and a content notch (55) is opened on the frame plate (54).

7. The combined biofilm wastewater treatment equipment according to claim 6, characterized in that: The assembly frame (21) is assembled in the content slot (55), and the inner edge of the insertion slot (52) is provided with a plurality of positioning blocks (61) and a supporting frame (62) provided on the positioning blocks (61); the assembly plug-in (22) comprises a frame frame (69) provided on the periphery of the assembly frame (21), the frame frame (69) is provided on the supporting frame (62), a fitting slot (63) is provided at the bottom of the frame frame (69), and a fitting block (64) is provided on the supporting frame (62) and is embedded in the fitting slot (63).

8. The combined biofilm wastewater treatment equipment according to claim 7, characterized in that: The bottom end of the insertion groove (52) is also provided with a plurality of reinforcing blocks (66) and a clamping fulcrum (67) arranged on the reinforcing blocks (66); the assembly plug-in unit (22) also includes a combination side block (65) arranged on the edge of the assembly frame (21), and a combination clamp (68) installed on the combination side block (65) and engaged with the clamping fulcrum (67).

9. The combined biofilm wastewater treatment equipment according to claim 8, characterized in that: The membrane layer fence (23) comprises a membrane layer frame (75) arranged on the inner edge of the assembly support frame (21), a filter membrane layer (71) arranged on the inner frame surface of the membrane layer frame (75), and a plurality of support assembly frames (72) arranged in the filter membrane layer (71); the filling member (24) comprises an assembly cylinder (73) installed in the corresponding support assembly frame (72), and a soft material core (74) arranged in the assembly cylinder (73); the assembly cylinder (73) and the soft material core (74) both adopt a through-hole structure; and adjacent support assembly frames (72) are fitted to each other.

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