A modular sewage treatment system and sewage treatment method using the same

Abstract

The present application discloses a modular sewage treatment system and a sewage treatment method using the same, which relates to the field of sewage treatment technology. The system is composed of a solid particle treatment module and a biochemical treatment module. The solid particle treatment module includes at least one solid particle treatment tank; a filter mesh and a drive unit for driving the filter mesh to move intermittently are provided in the solid particle treatment tank. The present application drives the filter mesh to move intermittently through the drive unit, so that the filter mesh is removed from the solid particle treatment tank after treating the solid particles in the sewage to avoid clogging of the filter mesh surface by solid particles, which affects the filter mesh's solid particle treatment efficiency in sewage treatment. The intermittent movement of the filter mesh will significantly improve the efficiency and effect of the filter mesh.

Description

Technical Field

[0001] The present application relates to the technical field of sewage treatment, and in particular to a modular sewage treatment system and a sewage treatment method using the same. Background Art

[0002] Wastewater treatment has always been an important part of environmental governance and resource recycling.

[0003] Chinese patent publication number CN107827324B discloses a comprehensive urban sewage treatment system, which includes a coarse screen tank, a fine screen tank, a water quality and quantity regulating tank, a FABR combination tank, an aerobic biological filtration tank, a denitrification biological filtration tank, a clean water tank, and a disinfection tank, which are sequentially connected. The treated sewage enters the coarse screen tank from the water inlet, and the treated clean water is discharged from the disinfection tank. A first lift pump is provided in the water quality and quantity regulating tank to pump the water after water quantity and water quality are regulated into the FABR combination tank. The FABR combination tank is composed of a compound anaerobic tank (i.e., an anaerobic hydrolysis / acidification tank), a chemical phosphorus removal sedimentation tank, and an intermediate water tank. The compound anaerobic tank is integrated with the anaerobic tank. Multi-layer guide plates are provided in the compound anaerobic tank to separate it into multiple independent chambers. Various biological fillers with various properties are added to each chamber to form a microbial growth bed with an attached growth bed as the main part and a suspended growth bed as the auxiliary part. The sewage is treated by anaerobic activated sludge method and anaerobic active biofilm method. The chemical dephosphorization sedimentation tank is provided with a first dephosphorization agent inlet, which is separated from the compound anaerobic tank by a partition. The dephosphorization agent, aluminum sulfate, is added from the first dephosphorization agent inlet according to the phosphorus content of the effluent, and the addition amount is 15-17 mg / L. The intermediate water tank is separated from the chemical dephosphorization sedimentation tank by a partition. A second lifting pump is provided in the intermediate water tank to pump the treated water into the aerobic biological filtration tank.

[0004] However, in the process of treating sewage, the integrated urban sewage treatment system first uses coarse screen pools and fine screen pools to block floating objects and larger solid particles in the sewage, and then uses water quality and quantity regulating pools to separate floating oil, precipitate solid particles, and regulate water quantity and quality. As a result, the solid particles in the sewage need to be separated after sedimentation, resulting in poor sewage treatment effect and efficiency, which needs to be improved. Summary of the Invention

[0005] In view of this, the first object of this application is to provide a modular sewage treatment system to improve the solid particle separation effect of sewage while improving the sewage treatment efficiency. The specific scheme is as follows:

[0006] A modular sewage treatment system consists of a solid particle treatment module and a biochemical treatment module. The solid particle treatment module includes at least one solid particle treatment tank; a filter mesh and a drive unit for driving the filter mesh to move intermittently are provided in the solid particle treatment tank.

[0007] Preferably: the solid particle treatment pool includes at least two and is connected in sequence, the movement direction of the filter cloth is opposite to the movement direction of the sewage, and the solid particle treatment pool for sewage to enter for the first time is used to clean the filter cloth moving outward.

[0008] Preferably: a mesh cloth groove is provided at the bottom of the solid particle treatment tank; the filter mesh cloth is inserted into the mesh cloth groove from top to bottom from the upper side of the rear end of the solid particle treatment tank, and passes through the mesh cloth groove from bottom to top from the lower side of the front end of the solid particle treatment tank, and an inlet pool, a filtration pool and a re-filtration pool are formed in the solid particle treatment tank, which are arranged in sequence along the direction of sewage movement; the driving unit is located at the upper end of the solid particle treatment tank and is used to intermittently move the filter mesh cloth that passes through the mesh cloth groove to the outside of the solid particle treatment tank.

[0009] Preferably: the solid particle treatment tank is provided with two U-shaped limit frames located at both ends of the mesh cloth passing groove, and each of the U-shaped limit frames is plugged with two mutually matching clamps; a clamping groove matching the filter mesh cloth is formed between the two clamps, and the driving unit is used to control the corresponding two clamps to clamp the filter mesh cloth or separate from the filter mesh cloth.

[0010] Preferably, the clamping plate is provided with an oblique chamfer for guiding the sewage to move toward the filter cloth, and a reversing roller is provided at the end of the filter cloth.

[0011] Preferably, the driving unit includes a clamping strip sleeved on the filter cloth, a limiting lifting block connected to the clamping strip and synchronously lifting and reciprocating, and a driving member for driving the limiting lifting block to reciprocate in the vertical direction.

[0012] Preferably: a supporting bracket is provided at the top of the solid particle processing pool, the supporting bracket is provided with a lifting limit column, and the limiting lifting block is provided with a matching inner groove that matches the outer side of the lifting limit column; the driving member includes a linear expander fixed on the solid particle processing pool, a driving connecting plate fixedly connected to the movable end of the linear expander, and a matching driving block connected to the driving connecting plate and used to drive the limiting lifting block to move; one end of the matching driving block is provided with a hinged column and a V-shaped driving groove rotatably connected to the supporting bracket, and the driving connecting plate is inserted into the V-shaped driving groove close to the side of the matching driving block for movement, and the matching driving block is rotatably connected to a swing driving rib through a waist groove, and the other end of the swing driving rib is used to be rotatably connected to the waist groove on the limiting lifting block; the middle part of the swing driving rib is rotatably connected to the supporting bracket.

[0013] Preferably: the driving connecting plate is provided with a plug-in opening and closing portion, which is used to be inserted between two adjacent clamps and drive the corresponding clamp to move away from the filter cloth; the limiting frame is provided with an elastic gasket for abutting against the corresponding clamp.

[0014] Preferably: the supporting bracket is provided with a matching limit column and a hinged connecting plate, and the clamping strip is provided with a limit lifting column matching the matching limit column at one end away from the limit lifting block; the hinged connecting plate is provided with a plurality of holes evenly spaced in the horizontal direction and used to match the swing driving ribs for rotational connection; a limited clamping part is provided on the inner side of the clamping strip, and the limit clamping part consists of a plurality of movable grooves with decreasing depth from top to bottom and an abutting clamping block located in the movable groove, and the abutting clamping block is used to abut against the filter mesh cloth when it is located at the lower end of the movable groove, and is separated from the filter mesh cloth when it is located at the upper end of the movable groove.

[0015] The second object of the present application is to provide a modular sewage treatment method, comprising passing sewage into the modular sewage treatment system as described above to perform sewage treatment operations and obtain sewage purification treatment liquid.

[0016] It can be seen from the above scheme that the present application provides a modular sewage treatment system and a sewage treatment method using the same, wherein the modular sewage treatment system drives the filter cloth to move intermittently through the driving unit, so that the filter cloth is removed from the solid particle treatment pool after the solid particles in the sewage are treated, thereby avoiding the solid particles forming a blockage on the surface of the filter cloth and affecting the solid particle treatment efficiency of the filter cloth in sewage treatment, and the use efficiency and effect of the filter cloth will be significantly improved in the process of intermittently moving the filter cloth; at the same time, the elastic gasket applies a force to the corresponding splints, so that the two splints can effectively clamp the filter cloth, and then under the drive of the linear retractor, the plug-in opening and closing part on the driving connecting plate is driven to separate the two splints, so as to avoid the clamping force formed by the two splints on the filter cloth affecting the intermittent movement of the filter cloth, and make the driving connecting plate When the connecting plate is moved to the other end of the V-shaped driving groove, the corresponding end of the swing-driven bar rises, and the other end drives the limiting lifting block to move down; when the limiting lifting block falls, the clamping strip is made to move downward in the vertical direction, and the abutting clamping block in the movable groove moves upward and no longer applies pressure to the filter cloth; if the corresponding end of the swing-driven bar falls, the other end drives the limiting lifting block to rise, and the abutting clamping block in the movable groove moves downward and applies pressure to the filter cloth while making the clamping strip move upward in the vertical direction.

[0017] The modular sewage treatment method uses the above-mentioned modular sewage treatment system to treat sewage, thereby improving the solid particle separation effect of sewage and achieving the purpose of improving sewage treatment efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are merely embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without any creative work.

[0019] Figure 1 This is a structural block diagram of the modular sewage treatment system disclosed in this application;

[0020] Figure 2 This is a schematic structural diagram of the solid particle processing module disclosed in this application;

[0021] Figure 3 yes Figure 2 Schematic diagram of the enlarged structure of part A

[0022] Figure 4 A schematic diagram of the structure of the solid particle processing mechanism disclosed in this application without the solid particle processing pool;

[0023] Figure 5 This is a schematic cross-sectional structural diagram of the solid particle processing module disclosed in this application;

[0024] Figure 6 yes Figure 5 Schematic diagram of the enlarged structure of part B;

[0025] Figure 7 yes Figure 5 Schematic diagram of the enlarged structure of part C.

[0026] Explanation of the accompanying symbols: 1. solid particle treatment tank; 11. water inlet tank; 12. filtration tank; 13. refiltration tank; 14. limiting frame; 15. splint; 151. chamfer; 152. clamping groove; 16. support bracket; 161. lifting limiting column; 162. matching limiting column; 163. hinged connecting plate; 17. mesh cloth threading groove; 2. filter mesh; 21. reversing rod; 3. drive unit; 31. linear expander; 32. drive connecting plate; 321. plug-in opening and closing part; 33. matching drive block; 331. hinged column; 332. V-shaped drive groove; 34. swing drive rib; 35. limiting lifting block; 351. matching inner groove; 36. clamping strip; 361. limiting lifting column; 362. limiting clamping part; 3621. moving groove; 3622. abutting clamping block; 4. elastic gasket. Implementation Method

[0027] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0028] It should be mentioned that the biochemical treatment module can adopt conventional sewage treatment technology. Example

[0029] like Figure 1 The modular sewage treatment system shown in the figure consists of a solid particle treatment module and a biochemical treatment module. After the sewage passes through the solid particle treatment module, it will achieve efficient treatment of solid particles in the sewage, thereby significantly improving the efficiency and effectiveness of the biochemical treatment module.

[0030] like Figure 2 、 Figure 4 As shown, the solid particle treatment module includes at least one solid particle treatment tank 1. Within the solid particle treatment tank 1 are located a filter cloth 2 and a drive unit 3 for intermittently moving the filter cloth 2. The filter cloth 2 moves in the opposite direction of the sewage flow to prevent solid particles deposited on the filter cloth 2 from affecting the sewage treatment effect.

[0031] At the same time, a mesh cloth groove 17 (see Figure 5 、 Figure 6 Filter cloth 2 is inserted from top to bottom into cloth slot 17 at the upper rear end of solid particle treatment tank 1 and passes through cloth slot 17 from bottom to top at the lower front end of solid particle treatment tank 1. Within solid particle treatment tank 1 are formed an inlet tank 11, a filtration tank 12, and a refiltration tank 13, arranged sequentially along the direction of wastewater flow. Drive unit 3 is located at the upper end of solid particle treatment tank 1 and is used to intermittently move filter cloth 2, which has passed through cloth slot 17, out of solid particle treatment tank 1.

[0032] It's worth noting that two U-shaped limit frames 14 are installed within the solid particle processing tank 1, located at either end of the mesh threading slot 17. Two matching clamping plates 15 are inserted into each U-shaped limit frame 14. A clamping groove 152 is formed between the two clamping plates 15, matching the filter mesh 2. The drive unit 3 is used to control the two clamping plates 15 to clamp or separate the filter mesh 2.

[0033] The clamping plate 15 is provided with an oblique chamfer 151 for guiding the sewage to move toward the filter cloth 2, and a reversing rod 21 is provided at the end of the filter cloth 2 to improve the movement stability of the filter cloth 2 while improving the sewage treatment effect of the filter cloth 2.

[0034] It should be noted that the drive unit 3 includes a clamping strip 36 that is sleeved on the filter cloth 2, a limit lifting block 35 that is connected to the clamping strip 36 and synchronously lifts and reciprocates, and a drive member for driving the limit lifting block 35 to reciprocate in the vertical direction. A support bracket 16 is provided at the top of the solid particle treatment tank 1. The support bracket 16 is provided with a lifting limit column 161. The limit lifting block 35 is provided with a matching inner groove 351 that matches the outer side of the lifting limit column 161. The drive member includes a linear expander 31 fixed to the solid particle treatment tank 1, a drive connecting plate 32 fixedly connected to the movable end of the linear expander 31, and a matching drive block 33 connected to the drive connecting plate 32 and used to drive the limit lifting block 35 to move. A hinged column 331 and a V-shaped drive groove 332 are provided at one end of the matching drive block 33, which are rotatably connected to the support bracket 16. The side of the drive connecting plate 32 closest to the matching drive block 33 is inserted into the V-shaped drive groove 332 for movement. The matching drive block 33 is rotatably connected to a swing drive rib 34 via the waist groove. The other end of the swing drive rib 34 is rotatably connected to the waist groove of the limit lifting block 35. The middle portion of the swing drive rib 34 is rotatably connected to the support bracket 16 to achieve the purpose of driving the swing.

[0035] like Figure 2 、 Figure 3 As shown, the driving connecting plate 32 is provided with a plug-in opening and closing portion 321, which is used to be inserted between two adjacent clamps 15 and drive the corresponding clamp 15 to move away from the filter cloth 2; the limiting frame 14 is provided with an elastic gasket 4 for abutting against the corresponding clamp 15.

[0036] like Figure 5 、 Figure 7As shown, the support bracket 16 is equipped with matching limiting posts 162 and a hinged connecting plate 163. A limiting lifting post 361 is provided at the end of the clamping strip 36 away from the limiting lifting block 35, matching the limiting posts 162. The hinged connecting plate 163 is provided with multiple holes evenly spaced horizontally and configured to mate with the swing drive bar 34 for rotational connection. Thus, by adjusting the corresponding holes, the rotational connection is achieved while also controlling the lifting range of the limiting lifting block 35. Furthermore, a limiting clamping portion 362 is provided on the inner side of the clamping strip 36. The limiting clamping portion 362 consists of a plurality of movable grooves 3621, the depth of which decreases from top to bottom, and an abutting clamping block 3622 positioned within the movable grooves 3621. The abutting clamping block 3622 abuts the filter cloth 2 when located at the bottom of the movable grooves 3621 and separates from the filter cloth 2 when located at the top of the movable grooves 3621. Therefore, during the lifting and lowering movement of the clamping strip 36, the purpose of driving the filter cloth 2 to move upward is achieved only during the rising process of the clamping strip 36, and during the descending process of the clamping strip 36, the force applied to the filter cloth 2 to generate wrinkles and other problems is avoided.

[0037] A modular sewage treatment method comprises passing sewage through the modular sewage treatment system described above for sewage treatment, thereby obtaining a purified sewage solution. Thus, by utilizing the modular sewage treatment system described above to treat sewage, the modular sewage treatment method achieves both improved solid particle separation and improved sewage treatment efficiency. Example

[0038] In the second embodiment, two or more solid particle treatment tanks 1 are arranged in sequence and interconnected to synergistically improve the sewage treatment effect through multiple solid particle treatment tanks 1. Since the movement direction of the filter cloth 2 is opposite to the movement direction of the sewage, the filter cloth 2 moving outward is cleaned in the solid particle treatment tank 1 where the sewage first enters.

[0039] In summary, the present application provides a modular sewage treatment system and a sewage treatment method using the same, wherein the modular sewage treatment system drives the filter cloth 2 to move intermittently through the driving unit 3, so that the filter cloth 2 is removed from the solid particle treatment tank 1 after treating the solid particles in the sewage, thereby avoiding the blockage of the solid particles on the surface of the filter cloth 2 and affecting the solid particle treatment efficiency of the filter cloth 2 in sewage treatment, and the use efficiency and effect of the filter cloth 2 will be significantly improved in the process of intermittently moving the filter cloth 2; at the same time, the elastic gasket 4 applies a force to the corresponding splint 15, so that the two splints 15 can effectively clamp the filter cloth 2, and then under the drive of the linear retractor 31, the plug-in opening and closing part 321 on the driving connecting plate 32 is driven to separate the two splints 15, so as to avoid the clamping force formed by the two splints 15 on the filter cloth 2 affecting the intermittent movement of the filter cloth 2, and the driving connecting plate 32 drives the matching driving block 33 with the hinge column 331 as When the shaft rotates, the driving connecting plate 32 is connected to the V-shaped driving groove 332, and when the driving connecting plate 32 moves in one end of the V-shaped driving groove 332, the matching driving block 33 first remains stationary and the plug-in opening and closing portion 321 abuts against the corresponding clamping plate 15 and drives the two clamping plates 15 to separate from each other. When the driving connecting plate 32 moves to the other end of the V-shaped driving groove 332, the corresponding end of the swing driving rib 34 rises, and the other end drives the limit lifting block 35 to descend. When the clamping strip 36 is lowered, the abutting clamping block 3622 located in the movable groove 3621 will move upward and no longer apply pressure to the filter mesh 2. If the corresponding end of the swing-driven rib 34 is lowered, the other end will drive the limit lift to rise, and while the clamping strip 36 is making the vertical upward movement, the abutting clamping block 3622 located in the movable groove 3621 will move downward and apply pressure to the filter mesh 2, so as to achieve the purpose of lifting the filter mesh 2.

[0040] References to "first," "second," "third," "fourth," and the like (if any) herein are intended to distinguish similar objects and are not necessarily intended to describe a particular order or precedence. It should be understood that the terms used in this manner are interchangeable where appropriate so that the embodiments described herein can be implemented in an order other than that illustrated or described herein. In addition, the terms "including" and "having," as well as any variations thereof, are intended to cover non-exclusive inclusions, e.g., a process, method, or apparatus comprising a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units that are not explicitly listed or that are inherent to such processes, methods, or apparatus.

[0041] It should be noted that the descriptions of "first", "second", etc. in this application are for descriptive purposes only and should not be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" or "second" may explicitly or implicitly include at least one of such features. In addition, the technical solutions between the various embodiments can be combined with each other, but this must be based on the fact that they can be implemented by ordinary technicians in this field. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by this application.

[0042] This document uses specific examples to illustrate the principles and implementation methods of this application. The description of the above embodiments is only used to help understand the method and core ideas of this application. At the same time, for those skilled in the art, based on the ideas of this application, there will be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as limiting this application.

Claims

1. A modular sewage treatment system, consisting of a solid particle treatment module and a biochemical treatment module, characterized by: The solid particle treatment module comprises at least one solid particle treatment pool (1); a filter mesh (2) and a driving unit (3) for driving the filter mesh (2) to move intermittently are provided in the solid particle treatment pool (1); a mesh through groove (17) is provided at the bottom of the solid particle treatment pool (1); the filter mesh (2) is inserted into the mesh through groove (17) from top to bottom from the upper side of the rear end of the solid particle treatment pool (1), and passes through the mesh through groove (17) from bottom to top from the lower side of the front end of the solid particle treatment pool (1); an inlet pool (11), a filter pool (12) and a re-filtration pool (13) are formed in the solid particle treatment pool (1) in sequence along the direction of sewage movement; the drive The driving unit (3) is located at the upper end of the solid particle processing tank (1) and is used for intermittently moving the filter mesh cloth (2) passing through the mesh cloth passing slot (17) to the outside of the solid particle processing tank (1); the solid particle processing tank (1) is provided with two U-shaped limit frames (14) located at both ends of the mesh cloth passing slot (17), and two mutually matching clamping plates (15) are inserted into each of the U-shaped limit frames (14); a clamping groove (152) matching the filter mesh cloth (2) is formed between the two clamping plates (15), and the driving unit (3) is used for controlling the corresponding two clamping plates (15) to clamp the filter mesh cloth (2) or to separate from the filter mesh cloth (2); the driving unit (3) includes a sleeve A clamping strip (36) on the filter cloth (2), a limit lifting block (35) connected to the clamping strip (36) and synchronously lifting and reciprocating, and a driving member for driving the limit lifting block (35) to reciprocate in the vertical direction; a support bracket (16) is provided at the top of the solid particle processing tank (1), the support bracket (16) is provided with a lifting limit column (161), and the limit lifting block (35) is provided with a matching inner groove (351) matching the outer side of the lifting limit column (161); the driving member includes a linear expander (31) fixed on the solid particle processing tank (1), a driving connecting plate (32) connected and fixed to the movable end of the linear expander (31), and a driving connecting plate (32) connected to the movable end of the linear expander (31). The driving connecting plate (32) is connected to and used for driving the matching driving block (33) to move the limiting lifting block (35); one end of the matching driving block (33) is provided with a hinge column (331) and a V-shaped driving groove (332) rotatably connected to the supporting bracket (16); the driving connecting plate (32) is inserted into the V-shaped driving groove (332) on the side close to the matching driving block (33) and moves, and the matching driving block (33) is rotatably connected to a swing driving rib (34) through the waist groove, and the other end of the swing driving rib (34) is used for rotatably connecting to the waist groove on the limiting lifting block (35); the middle part of the swing driving rib (34) is rotatably connected to the supporting bracket (16);The support bracket (16) is provided with a matching limit column (162) and a hinged connection plate (163); the clamping strip (36) is provided with a limit lifting column (361) matching the matching limit column (162) at one end away from the limit lifting block (35); the hinged connection plate (163) is provided with a plurality of holes distributed at equal intervals in the horizontal direction and used to match the swing driving strip (34) for rotational connection; the inner portion of the clamping strip (36 ... A limited clamping portion (362) is provided on the side, the limited clamping portion (362) is composed of a plurality of movable grooves (3621) whose depth decreases from top to bottom and an abutting clamping block (3622) located in the movable groove (3621), and the abutting clamping block (3622) is used to abut against the filter cloth (2) when it is located at the lower end of the movable groove (3621), and is separated from the filter cloth (2) when it is located at the upper end of the movable groove (3621).

2. A modular sewage treatment system according to claim 1, characterized in that: The solid particle treatment pool (1) comprises at least two solid particle treatment pools connected in sequence, the movement direction of the filter cloth (2) is opposite to the movement direction of the sewage, and the solid particle treatment pool (1) for sewage to enter for the first time is used to clean the filter cloth (2) moving outward.

3. A modular sewage treatment system according to claim 1, characterized in that: The clamping plate (15) is provided with an oblique chamfer (151) for guiding sewage to move toward the filter mesh (2), and a reversing roller (21) is provided at the end of the filter mesh (2).

4. A modular sewage treatment system according to claim 1, characterized in that: The driving connecting plate (32) is provided with a plug-in opening and closing portion (321), and the plug-in opening and closing portion (321) is used to be inserted between two adjacent clamping plates (15) and drive the corresponding clamping plate (15) to move away from the filter cloth (2); and an elastic gasket (4) is provided in the U-shaped limiting frame (14) for contacting the corresponding clamping plate (15).

5. A modular sewage treatment method, characterized by: The method comprises passing sewage into the modular sewage treatment system according to any one of claims 1 to 4 to perform sewage treatment operations and obtain sewage purification treatment liquid.

Images