A sewage treatment system and sewage treatment method based on filamentous algae

Abstract

The present invention belongs to the technical field of sewage treatment and provides a sewage treatment system based on filamentous algae, comprising a water storage device, and further comprising: a base plate disposed within the water storage device; a light source board disposed on a side of the base plate to which the filamentous algae is fixed, for providing light to the filamentous algae; a guide rail disposed on the top of the water storage device along the length of the water storage device; and a trimming device disposed on the guide rail and movable along the length of the guide rail, for trimming the filamentous algae on the base plate; wherein a plurality of base plates and light source boards are provided, and the plurality of base plates and light source boards are alternately arranged in sequence along the width of the water storage device. A sewage treatment method is also provided, which utilizes the sewage treatment system. The sewage treatment system and sewage treatment method based on filamentous algae provided by the present invention can automatically trim the filamentous algae, have high trimming efficiency, and save labor.

Description

Technical Field

[0001] The present invention relates to the technical field of sewage treatment, and in particular to a sewage treatment system and a sewage treatment method based on filamentous algae. Background Art

[0002] Research has shown that filamentous algae are highly effective in treating elements like nitrogen and phosphorus in wastewater. Specifically, under the influence of light, as the algae grow, they convert these elements into their own components, effectively treating them.

[0003] However, too long filamentous algae will affect the growth of the filamentous algae itself. Therefore, when the filamentous algae grow to a certain extent, it is necessary to clean the filamentous algae to achieve the purpose of improving the treatment effect. In the prior art, manual cleaning is usually adopted, which is not only cumbersome but also inefficient. Summary of the Invention

[0004] In view of the defects in the prior art, the object of the present invention is to provide a sewage treatment system and sewage treatment method based on filamentous algae, so as to achieve the purpose of improving the cleaning effect of filamentous algae.

[0005] To achieve the above objectives, the present invention provides a sewage treatment system and sewage treatment method based on filamentous algae, comprising a water storage device and further comprising:

[0006] a substrate, which is disposed in the water storage device and is used to fix filamentous algae;

[0007] a light source plate, which is arranged on the side of the substrate to which the filamentous algae are fixed, and is used to provide light to the filamentous algae adhered to the substrate;

[0008] a guide rail disposed on the top of the water storage device along the length direction of the water storage device; and

[0009] a trimming device, which is disposed on the guide rail and can move on the guide rail along the length direction of the guide rail, and is used to trim the filamentous algae on the substrate;

[0010] Wherein, a plurality of the substrates and a plurality of the light source boards are provided, and the plurality of substrates and the plurality of light source boards are alternately arranged in sequence along the width direction of the water storage device.

[0011] Furthermore, the trimming device comprises:

[0012] body;

[0013] a first motor disposed within the machine body;

[0014] a caster rollingly arranged on the guide rail, which is arranged at the bottom of the machine body, is rotatably connected to the machine body, and has a power input end drivingly connected to a power output end of the first motor; and

[0015] The trimming component is arranged at the bottom of the body and is used for trimming the filamentous algae.

[0016] Furthermore, the trimming component includes:

[0017] a fixed trimming plate, the first end of which is fixedly connected to the machine body, the second end of which extends downward, and the first trimming teeth are provided on both sides of the fixed trimming plate;

[0018] a movable trimming plate, which is slidably connected to the fixed trimming plate and has second trimming teeth on both sides thereof that cooperate with the first trimming teeth; and

[0019] The vibration motor is fixedly arranged in the machine body, and the power output end of the vibration motor is transmission-connected with the movable trimming plate, and is used for driving the movable trimming plate to move up and down.

[0020] Furthermore, it further comprises a transfer device, wherein the transfer device comprises two transfer units, and the two transfer units are respectively arranged at both ends of the guide rail, and the transfer units comprise:

[0021] a transfer seat having a first working position at a first side of the water storage device and a second working position at a second side of the water storage device, and capable of reciprocating linear motion between the first working position and the second working position; and

[0022] The first driving assembly is used to drive the transfer seat to perform reciprocating linear motion between the first working position and the second working position.

[0023] Furthermore, the first driving component includes:

[0024] a first lead screw threadedly connected to the transfer seat; and

[0025] The servo motor has a power output shaft that is transmission-connected to the power input end of the first lead screw.

[0026] Furthermore, the light source panel includes:

[0027] a housing, which is hollow and has a light-transmitting surface; and

[0028] A lamp is arranged in the housing.

[0029] Furthermore, a cleaning device is included, and the cleaning device is used to clean the light-transmitting surface of the light source board.

[0030] In another aspect, the present invention provides a method for treating sewage, which uses any one of the above-mentioned sewage treatment systems based on filamentous algae to treat sewage.

[0031] Beneficial effects of the present invention:

[0032] The sewage treatment system and sewage treatment method based on filamentous algae provided by the present invention have a simple structure and a reasonable design. By providing a pruning device, the purpose of automatically pruning the filamentous algae is achieved, thereby achieving the purpose of improving the pruning efficiency of the filamentous algae. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following briefly describes the drawings required for the specific embodiments or the description of the prior art. Similar elements or parts are generally identified by similar reference numerals throughout the drawings. Elements or parts in the drawings are not necessarily drawn to scale.

[0034] Figure 1 A structural diagram of a sewage treatment system based on filamentous algae according to an embodiment of the present invention;

[0035] Figure 2 A three-dimensional structural view of a pruning device for a sewage treatment system based on filamentous algae provided in one embodiment of the present invention;

[0036] Figure 3 for Figure 2 a cutaway view of the trimming device shown;

[0037] Figure 4 A three-dimensional structural view of the combined guide rail, trimming device, and transfer device of a filamentous algae-based sewage treatment system provided by one embodiment of the present invention;

[0038] Figure 5 A structural diagram of a light source panel of a sewage treatment system based on filamentous algae provided in one embodiment of the present invention;

[0039] Figure 6 A three-dimensional structural view of the combination of a cleaning device and a light source panel of a sewage treatment system based on filamentous algae provided by one embodiment of the present invention;

[0040] Figure 7 for Figure 6 The cross-sectional view shown;

[0041] Figure 8 for Figure 7 An enlarged view of point A is shown;

[0042] Figure 9 for Figure 7 A partial cross-sectional view along the BB direction is shown.

[0043] Reference numerals:

[0044] Water storage device 100, base plate 200, light source panel 300, guide rail 400, trimming device 500, machine body 510, first motor 520, caster 530, fixed trimming plate 540, movable trimming plate 550, vibration motor 560, transfer unit 600, transfer seat 610, first lead screw 620, servo motor 630, cleaning device 700, mounting seat 710, scraper 720, second lead screw 731, second motor 732, limit block 741, locking member 742, first spring 743, first permanent magnet 744, second permanent magnet 745, drive rod 751, second spring 752, filamentous algae 800. DETAILED DESCRIPTION

[0045] The following embodiments of the technical solution of the present invention will be described in detail with reference to the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present invention and are therefore only examples and are not intended to limit the scope of protection of the present invention.

[0046] It should be noted that, unless otherwise specified, the technical or scientific terms used in this application should have the common meanings understood by those skilled in the art to which the present invention belongs.

[0047] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0048] In addition, the terms "first," "second," etc. are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. In the description of the present invention, "plurality" means more than two, unless otherwise specifically defined.

[0049] In this application, unless otherwise expressly specified or limited, terms such as "mounted," "connected," "connect," and "fixed" should be understood in a broad sense. For example, they may refer to fixed or detachable connections, or integration; mechanical or electrical connections; direct or indirect connections through an intermediate medium; and internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on specific circumstances.

[0050] In this application, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Furthermore, when a first feature is "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0051] like Figure 1 As shown, the present invention provides a sewage treatment system based on filamentous algae, including a water storage device 100, a base plate 200, a light source board 300, a guide rail 400 and a trimming device 500.

[0052] A substrate 200 is disposed within the water storage device 100 and is used to secure filamentous algae 800. A light source panel 300 is disposed on the side of the substrate 200 to which the filamentous algae 800 is secured and is used to provide illumination to the filamentous algae 800 adhered to the substrate 200. Specifically, a plurality of substrates 200 and light source panels 300 are provided, and the plurality of substrates 200 and light source panels 300 are alternately spaced along the width of the water storage device 100. That is, the substrates 200 and light source panels 300 are arranged alternately, one substrate 200 per light source panel 300 or one light source panel 300 per substrate 200. Since the water in the water storage device 100 is in a flowing state, it is more conducive to the extension and growth of the filamentous algae 800. Therefore, the water flow in the water storage device 100 is usually in a flowing state. By arranging multiple substrates 200 and multiple light source panels 300 alternately and spaced in sequence along the width direction of the water storage device 100, the water storage device 100 is divided into many smaller flow areas by using the substrates 200 and light source panels 300, so that the flow rate of the water flow between any adjacent substrates 200 and light source panels 300 is more uniform without turbulence, etc., and the light source panels 300 are arranged in sewage, which can better provide light to the filamentous algae 800.

[0053] The guide rails 400 are disposed at the top of the water storage device 100 along its length. Specifically, the guide rails 400 are arranged in multiple groups, each group comprising two rails. These groups are spaced apart along the width of the water storage device 100. A trimming device 500 is disposed on the guide rails 400 and is movable along the length of the guide rails 400. The trimming device 500 is used to trim the filamentous algae 800 on the substrate 200.

[0054] During use, wastewater to be treated is injected into the water storage device 100. The light source panel 300 illuminates the filamentous algae 800, causing it to grow. This converts elements like nitrogen and phosphorus in the water into its own components, thereby treating these elements. Once the filamentous algae 800 has grown to a certain size, the trimming device 500 automatically trims the algae 800, improving efficiency and saving labor.

[0055] like Figure 2-3 As shown, in one embodiment, the trimming device 500 includes a body 510, a first motor 520, casters 530, and a trimming assembly.

[0056] A first motor 520 is fixedly mounted within the machine body 510. A caster 530 is rotatably mounted on the guide rail 400. The caster 530 is mounted on the bottom of the machine body 510 and is rotationally connected to the machine body 510. The power input end of the caster 530 is in transmission connection with the power output end of the first motor 520. A trimming assembly is mounted on the bottom of the machine body 510 and is used to trim the filamentous algae 800.

[0057] During use, under the action of the first motor 520, the first motor 520 drives the caster 530 to rotate, thereby moving the trimming device 500 on the guide rail 400. Under the action of the trimming assembly, the filamentous algae 800 can be automatically trimmed.

[0058] The trimming device 500 of this structure has a simple structure and a reasonable design.

[0059] like Figure 2-3 As shown, in one embodiment, the trimming assembly includes a stationary trimming plate 540 , a movable trimming plate 550 , and a vibration motor 560 .

[0060] The first end of the fixed trimming plate 540 is fixedly connected to the body 510, and the second end extends downward. First trimming teeth are provided on both sides of the fixed trimming plate 540. The movable trimming plate 550 is slidably connected to the fixed trimming plate 540. Second trimming teeth are provided on both sides of the movable trimming plate 550 to cooperate with the first trimming teeth. A vibration motor 560 is fixedly mounted within the body 510. The power output end of the vibration motor 560 is in transmission connection with the movable trimming plate 550, and the vibration motor 560 is used to drive the movable trimming plate 550 up and down.

[0061] During use, the vibration motor drives the movable trimming plate 550 to move up and down, and under the action of the first trimming teeth and the second trimming teeth, the filamentous algae 800 is trimmed.

[0062] The pruning component of this structure has a simple structure, a reasonable design, is easy to operate and has a high pruning efficiency.

[0063] like Figure 4 As shown, in one embodiment, a transfer device is further included. The transfer device has two transfer units 600. The two transfer units 600 are respectively arranged at both ends of the guide rail 400. The transfer units 600 include a transfer seat 610 and a first driving assembly.

[0064] The transfer base 610 has a first working position located on a first side of the water storage device 100 and a second working position located on a second side of the water storage device 100. The transfer base 610 can perform reciprocating linear motion between the first and second working positions. The first drive assembly is used to drive the transfer base 610 to perform reciprocating linear motion between the first and second working positions.

[0065] During use, as the trimming device 500 moves from the first end to the second end of the guide rails 400, or from the second end to the first end of the guide rails 400, to trim the filamentous algae 800, after the trimming device 500 has trimmed the filamentous algae 800 on one side of the substrate 200, the trimming device 500 moves along the guide rails 400 to the transfer base 610. The first drive assembly then drives the transfer base 610 to move, thereby transferring the trimming device 500 to a position corresponding to the next set of guide rails 400. The first motor 520 then drives the casters 530 to rotate again, trimming the filamentous algae 800 at that location. This process is repeated, thereby trimming the filamentous algae 800 on all substrates 200.

[0066] This structure, by providing a transfer device, achieves the purpose of trimming the filamentous algae 800 on all substrates 200 with only one trimming device 500. At the same time, there is no need to design a guide rail 400 structure in which all guide rails 400 have the same ends, and the structure is simple.

[0067] like Figure 4 As shown, in one embodiment, the first drive assembly includes a first lead screw 620 and a servo motor 630 .

[0068] The first lead screw 620 is threadedly connected to the transfer base 610. The power output shaft of the servo motor 630 is in driving connection with the power input end of the first lead screw 620. During use, the servo motor 630 drives the first lead screw 620 to rotate, thereby driving the transfer base 610 to move, thereby achieving the purpose of transferring the trimming device 500 to the target guide rail 400.

[0069] like Figure 5 As shown, in one embodiment, the light source board 300 includes a housing 310 and a lamp 320 .

[0070] The housing 310 is hollow and has a light-transmitting surface. The lamp 320 is installed in the housing 310. When in use, the lamp 320 in the housing 310 emits light, which passes through the light-transmitting surface and is emitted toward the filamentous algae 800, thereby achieving the purpose of providing light to the filamentous algae 800.

[0071] like Figure 6-9 As shown, in one embodiment, a cleaning device 700 is further included. The cleaning device 700 is used to clean the light-transmitting surface of the light source panel 300 .

[0072] Specifically, the cleaning device 700 includes a mounting base 710 , a scraper 720 , and a second driving assembly.

[0073] The mounting base 710 is slidably disposed on one side of the light source board 300. The mounting base 710 can perform reciprocating linear motion between a third working position and a fourth working position along the length of the light source board 300. When the mounting base 710 is in the third working position, the mounting base 710 is located at the first end of the light source board 300. When the mounting base 710 is in the fourth working position, the mounting base 710 is located at the second end of the light source board 300. The scraper 720 is disposed on the side of the mounting base 710 facing the light source board 300. The scraping edge of the scraper 720 can contact the light-transmitting surface of the light source board 300.

[0074] The second drive assembly is used to drive the mounting base 710 to perform reciprocating linear motion between the third working position and the fourth working position. Specifically, the second drive assembly includes a second lead screw 731 and a second motor 732. Two second lead screws 731 are provided, and the two second lead screws 731 are respectively arranged on the upper and lower sides of the light source plate 300. The axial centerline direction of the second lead screw 731 is parallel to the length direction of the light source plate 300 and is rotatably connected to the frame, and the two second lead screws 731 are both threadedly connected to the mounting base 710. The power output shaft of the second motor 732 is transmission-connected to the power input end of the second lead screw 731. When in use, the second motor 732 drives the second lead screw 731 to rotate forward, thereby achieving the purpose of driving the mounting base 710 to move from the third working position to the fourth working position, and the second motor 732 drives the second lead screw 731 to rotate in the opposite direction, thereby achieving the purpose of driving the mounting base 710 to move from the fourth working position to the third working position.

[0075] In one embodiment, the cleaning device 700 further includes a locking assembly and a third driving assembly.

[0076] The locking assembly includes a limiting block 741, a locking member 742 and a driving structure.

[0077] The middle parts of the upper and lower ends of the scraper 720 are hinged to the mounting base 710, and the scraper 720 can make reciprocating linear motion around its own hinge center line between the fifth working position and the sixth working position, wherein, when the scraper 720 is in the fifth working position, the scraping blade of the scraper 720 is located on one side of its own hinge center line, and when the scraper 720 is in the sixth working position, the scraping blade of the scraper 720 is located on the other side of its own hinge center line, so that during the cleaning process, the scraping blade of the scraper 720 is always on the front side of the hinge center line of the scraper 720, so as to achieve the purpose of improving the cleaning effect.

[0078] The scraper 720 has a limit block 741 at each of its upper and lower ends, on the side away from the light-transmitting surface of the light source panel 300. The limit block 741 is fixedly connected to the mounting base 710. The limit block 741 has an arc-shaped limit groove. The scraper 720 has a limit portion at each of its upper and lower ends, which is inserted into the limit groove. When the scraper is in the fifth working position, the limit portion is at the first end of the limit groove. When the scraper is in the sixth working position, the limit portion is at the second end of the limit groove. Two locking members 742 are provided, and the two locking members 742 correspond to the two limit grooves respectively. Therefore, when the scraper 720 swings to the fifth working position, one of the locking members 742 locks the scraper 720 in the fifth working position. When the scraper 720 swings to the sixth working position, the other locking member 742 locks the scraper 720 in the sixth working position.

[0079] Specifically, the locking member 742 has a locking portion. The locking member 742 has a seventh working position in which it is in a locked position and an eighth working position in which it is in an unlocked position. The locking member 742 is slidably disposed within the limiting block 741 and can perform reciprocating linear motion between the seventh and eighth working positions. When the locking member 742 is in the seventh working position, the locking portion is inserted into the limiting groove, thereby preventing the limiting portion from moving along the limiting groove, thereby locking the scraper 720. When the locking member 742 is in the eighth working position, the locking portion is located outside the limiting groove, thereby allowing the limiting portion to slide along the limiting groove, thereby unlocking the scraper 720.

[0080] There are two driving structures, each for driving the two locking members 742 to perform reciprocating linear motion between the seventh working position and the eighth working position. The driving structure includes a first spring 743 and a permanent magnet group.

[0081] The first spring 743 is respectively mounted on the locking member 742, and both ends of the first spring 743 are respectively connected to the locking member 742 and the mounting seat 710. In the natural state, the first spring 743 has a tendency to move the locking member 742 from the eighth working position to the seventh working position.

[0082] There are two permanent magnet groups, which are respectively arranged at both ends of the locking member 742 . The permanent magnet groups include a first permanent magnet 744 and a second permanent magnet 745 .

[0083] Both ends of the locking piece 742 extend outside the mounting base 710, and the first permanent magnet 744 in the two permanent magnet groups are respectively embedded in the two ends of the locking piece 742, and the second permanent magnet 745 in the two permanent magnet groups are respectively arranged at the two ends of the light source board 300 and fixedly connected to the frame, wherein the second permanent magnet 745 in one permanent magnet group and the first permanent magnet 744 have the same magnetic properties on the opposite side, and the second permanent magnet 745 in the other permanent magnet group and the first permanent magnet 744 have opposite magnetic properties, so that no matter whether the mounting base 710 moves to the third working position or the fourth working position, the two locking pieces 742 can move from the seventh working position to the eighth working position under the action of the magnetic attraction and magnetic repulsion between the first permanent magnet 744 and the second permanent magnet 745, so that while releasing the lock on the scraper 720, it will not affect the sliding of the limiting part from one end of the limiting groove to the other end.

[0084] When in use, when the mounting base 710 moves to the third working position, the first permanent magnets 744 of the two locking members 742 facing the first end of the light source board 300 correspond to the two second permanent magnets 745 located at the first end of the light source board 300, respectively, so that the two locking members 742 move from the seventh working position to the eighth working position under the action of the magnetic attraction and magnetic repulsion between the first permanent magnets 744 and the second permanent magnets 745, respectively, so that while releasing the lock on the scraper 720, it will not affect the sliding of the limiting portion from the first end of the limiting groove to the second end Similarly, when the mounting base 710 moves to the fourth working position, the first permanent magnets 744 of the two locking members 742 facing the second end of the light source board 300 respectively correspond to the two second permanent magnets 745 located at the second end of the light source board 300, so that the two locking members 742 move from the seventh working position to the eighth working position under the action of the magnetic attraction and magnetic repulsion between the first permanent magnets 744 and the second permanent magnets 745, respectively, thereby releasing the lock on the scraper 720 without affecting the sliding of the limiting part from the second end of the limiting groove to the first end.

[0085] The third drive assembly includes a drive rod 751 and a second spring 752. Two drive rods 751 are provided, one at each end of the light source board 300. The drive rods 751 are slidably connected to the light source board 300. The drive rods 751 have a ninth working position closer to the center of the light source board 300 and a tenth working position farther from the center of the light source board 300. The driving end of the drive rod 751 can contact the scraper 720. Two second springs 752 are provided, each mounted on one of the drive rods 751. In a natural state, the second springs 752 tend to move the drive rod 751 from the tenth working position to the ninth working position.

[0086] When in use, during the movement of the mounting base 710 to the third working position, the scraper 720 conflicts with the driving rod 751 located at the first end of the light source board 300, thereby driving the driving rod 751 from the ninth working position to the tenth working position. When the mounting base 710 moves to the third working position, the first permanent magnet 744 facing the first end of the light source board 300 corresponds to the second permanent magnet 745 located at the first end of the light source board 300. Under the action of the magnetic attraction or magnetic repulsion between the first permanent magnet 744 and the second permanent magnet 745 of the corresponding permanent magnet group, the scraper 720 is pressed against the driving rod 751 at the first end of the light source board 300. This causes both locking members 742 to move from the seventh working position to the eighth working position, thereby releasing the lock on the scraper 720. Under the action of the elastic force of the second spring 752, the second spring 752 drives the driving rod 751 to move from the tenth working position to the ninth working position, and then drives the scraper 720 to rotate through the driving rod 751. In this way, the inclination direction of the scraper 720 can be adjusted, so that the scraping blade of the scraper 720 is in front of its hinge center line during the movement of the mounting seat 710 from the third working position to the fourth working position.

[0087] Similarly, when the mounting base 710 moves to the fourth working position, the scraper 720 conflicts with the driving rod 751 located at the second end of the light source board 300, thereby driving the driving rod 751 from the ninth working position to the tenth working position. When the mounting base 710 moves to the fourth working position, the first permanent magnet 744 facing the second end of the light source board 300 corresponds to the second permanent magnet 745 located at the second end of the light source board 300. Under the action of the magnetic attraction or magnetic repulsion between the first permanent magnet 744 and the second permanent magnet 745 of the corresponding permanent magnet group, The two locking members 742 move from the seventh working position to the eighth working position, thereby releasing the lock on the scraper 720. Under the action of the elastic force of the second spring 752, the second spring 752 drives the driving rod 751 to move from the tenth working position to the ninth working position, and then drives the scraper 720 to rotate through the driving rod 751. In this way, the inclination direction of the scraper 720 can be adjusted again, so that the scraping edge of the scraper 720 is at the front side of its hinge center line during the movement of the mounting seat 710 from the fourth working position to the third working position.

[0088] In a second embodiment, the present invention provides a method for treating sewage, which uses any one of the above-mentioned sewage treatment systems based on filamentous algae to treat sewage.

[0089] In the description of the present invention, a large number of specific details are described. However, it is understood that embodiments of the present invention can be practiced without these specific details. In some instances, well-known methods, structures, and techniques are not shown in detail so as not to obscure the understanding of this description.

[0090] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or make equivalent replacements for some or all of the technical features therein. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present invention, and they should all be included in the scope of the claims and description of the present invention.

Claims

1. A sewage treatment system based on filamentous algae, comprising a water storage device, characterized in that: Also includes: a substrate, which is disposed in the water storage device and is used to fix filamentous algae; a light source plate, which is arranged on the side of the substrate to which the filamentous algae are fixed, and is used to provide light to the filamentous algae adhered to the substrate; a guide rail disposed on the top of the water storage device along the length direction of the water storage device; and a trimming device, which is disposed on the guide rail and can move on the guide rail along the length direction of the guide rail, and is used to trim the filamentous algae on the substrate; Wherein, the substrate and the light source board are both provided in plurality, and the plurality of substrates and the plurality of light source boards are alternately arranged in sequence along the width direction of the water storage device; Also included is a cleaning device, which is used to clean the light-transmitting surface of the light source plate; The cleaning device comprises: A mounting seat, which is slidably arranged on one side of the light source board, and the mounting seat can reciprocate linearly between a third working position and a fourth working position along the length direction of the light source board; Wherein, when the mounting base is in the third working position, the mounting base is located at the first end of the light source board; When the mounting base is in the fourth working position, the mounting base is located at the second end of the light source board; a scraper, which is provided on a side of the mounting base facing the light source board, and the scraping edge of the scraper can contact the light-transmitting surface of the light source board; The middle parts of the upper and lower ends of the scraper are hinged to the mounting seat, and the scraper can perform reciprocating linear motion between the fifth working position and the sixth working position around its own hinge center line; Wherein, when the scraper is in the fifth working position, the scraping edge of the scraper is located on one side of its own hinge center line; When the scraper is in the sixth working position, the scraping edge of the scraper is located on the other side of its hinge center line; and a second driving assembly for driving the mounting seat to perform reciprocating linear motion between a third working position and a fourth working position; The cleaning device also includes: A locking assembly comprising: A limit block is provided on the upper and lower ends of the scraper on one side away from the light-transmitting surface of the light source board, the limit block is fixedly connected to the mounting seat, and a circular arc-shaped limit groove is provided on the limit block. A limit portion is provided on the upper and lower ends of the scraper, and the limit portion is inserted into the limit groove; When the scraper is in the fifth working position, the limiting portion is located at the first end of the limiting groove; when the scraper is in the sixth working position, the limiting portion is located at the second end of the limiting groove; Two locking members are provided, and the two locking members correspond to the two limiting grooves respectively, so that when the scraper is swung to the fifth working position, one of the locking members locks the scraper in the fifth working position, and when the scraper is swung to the sixth working position, the other locking member locks the scraper in the sixth working position; The locking member has a locking portion, the locking member has a seventh working position in which the locking member is in a locking position and an eighth working position in which the locking member is in an unlocking position, the locking member is slidably disposed in the limiting block, and the locking member can perform reciprocating linear motion between the seventh working position and the eighth working position; When the locking member is in the seventh working position, the locking portion is inserted into the limiting groove to lock the scraper; When the locking member is in the eighth working position, the locking portion is located outside the limiting groove to release the locking of the scraper; and Two driving structures are provided, and the two driving structures are respectively used to drive the two locking members to perform reciprocating linear motion between the seventh working position and the eighth working position; and The third driving assembly is used to drive the scraper to rotate when the mounting seat moves to the third position or the fourth position, so as to adjust the tilt direction of the scraper.

2. The sewage treatment system based on filamentous algae according to claim 1, characterized in that: The trimming device comprises: body; a first motor disposed within the machine body; a caster rollingly arranged on the guide rail, which is arranged at the bottom of the machine body, is rotatably connected to the machine body, and has a power input end drivingly connected to a power output end of the first motor; and The trimming component is arranged at the bottom of the body and is used for trimming the filamentous algae.

3. The sewage treatment system based on filamentous algae according to claim 2, characterized in that: The trimming assembly comprises: a fixed trimming plate, the first end of which is fixedly connected to the machine body, the second end of which extends downward, and the first trimming teeth are provided on both sides of the fixed trimming plate; a movable trimming plate, which is slidably connected to the fixed trimming plate and has second trimming teeth on both sides thereof that cooperate with the first trimming teeth; and The vibration motor is fixedly arranged in the machine body, and the power output end of the vibration motor is transmission-connected with the movable trimming plate, and is used for driving the movable trimming plate to move up and down.

4. The sewage treatment system based on filamentous algae according to any one of claims 1 to 3, characterized in that: It also includes a transfer device, the transfer device has two transfer units, the two transfer units are respectively arranged at both ends of the guide rail, and the transfer units include: a transfer seat having a first working position at a first side of the water storage device and a second working position at a second side of the water storage device, and capable of reciprocating linear motion between the first working position and the second working position; and The first driving assembly is used to drive the transfer seat to perform reciprocating linear motion between the first working position and the second working position.

5. The sewage treatment system based on filamentous algae according to claim 4, characterized in that: The first drive assembly comprises: a first lead screw threadedly connected to the transfer seat; and The servo motor has a power output shaft that is transmission-connected to the power input end of the first lead screw.

6. The sewage treatment system based on filamentous algae according to any one of claims 1, 2, 3 or 5, characterized in that: The light source panel comprises: a housing, which is hollow and has a light-transmitting surface; and A lamp is arranged in the housing.

7. A sewage treatment method, characterized in that: The method uses the filamentous algae-based sewage treatment system according to any one of claims 1 to 6 to treat sewage.

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