A domestic sewage treatment device and method for water conservancy project

Abstract

The present invention relates to the technical field of sewage treatment, and in particular to a domestic sewage treatment device for a water conservancy project and a method thereof, which comprises a filtering mechanism, comprising a treatment box, a filtering tank is provided on the left side inside the treatment box, a partition plate is movably connected to the left side of the inner wall of the filtering tank, the right side of the partition plate is clamped with the right side of the inner wall of the filtering tank, a collecting box is provided on the left side of the front of the treatment box, the back side of the collecting box penetrates to the inner wall of the filtering tank and is slidably connected to the surface of the filtering tank, a first filtering plate is inlaid on the top of the right side of the inner wall of the filtering tank, and a water inlet pipe is connected to the top of the left side of the treatment box. When treating sewage, the filtering mechanism is used to filter and the disinfection flocculation mechanism is used to disinfect the sewage and to adsorb and separate suspended matter. When filtering the sewage, the iron filings adsorption mechanism is used to adsorb the iron filings in the sewage, and the jet mechanism is activated to assist in blowing away the filtered matter. During the sewage discharge process, the blowing mechanism is activated to blow away the filtered floccules.

Description

Technical Field

[0001] The present invention relates to the technical field of sewage treatment, and in particular to a domestic sewage treatment device and method for a water conservancy project. Background Art

[0002] Domestic sewage is wastewater discharged from residents' daily lives. It mainly comes from residential buildings and public buildings. The pollutants contained in domestic sewage are mainly organic matter and a large number of pathogenic microorganisms. The organic matter in domestic sewage is extremely unstable and easily decomposes to produce foul odors. Bacteria and pathogens use the organic matter in domestic sewage as nutrition and multiply in large numbers, which can lead to the spread of infectious diseases. Therefore, domestic sewage must be treated before it is discharged.

[0003] However, in the process of sewage treatment, there are some iron impurities in the impurities of the sewage, which cannot be easily treated, and the sewage is also lacking in sterilization function. At the same time, the filter plate will be blocked during the filtration of the sewage, and a large amount of impurities will adhere to the surface of the filter plate, resulting in reduced filtering effect of the filter plate. In addition, the sewage treated with flocculants cannot easily discharge the flocs during the discharge process, resulting in cumbersome cleaning. Summary of the invention

[0004] The purpose of this section is to summarize some aspects of embodiments of the present invention and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the specification abstract and the invention title of this application to avoid blurring the purpose of this section, the specification abstract and the invention title, and such simplifications or omissions cannot be used to limit the scope of the present invention.

[0005] In view of the above problems existing in the existing domestic sewage treatment devices of water conservancy projects, the present invention is proposed.

[0006] Therefore, the object of the present invention is to provide a domestic sewage treatment device for a water conservancy project, the purpose of which is to collect iron filings and assist in cleaning and sterilizing sewage.

[0007] In order to solve the above technical problems, the present invention provides the following technical solutions: a filtering mechanism, which includes a treatment box, a filter tank is opened on the left side inside the treatment box, a partition plate is movably connected to the left side of the inner wall of the filter tank, the right side of the partition plate is clamped with the right side of the inner wall of the filter tank, a collecting box is arranged on the left side of the front of the treatment box, the back side of the collecting box penetrates through the inner wall of the filter tank and is slidably connected to the surface of the filter tank, a first filter plate is inlaid on the top of the right side of the inner wall of the filter tank, and a water inlet pipe is connected to the top of the left side of the treatment box; a disinfection flocculation mechanism, which The invention comprises a reaction tank, wherein the reaction tank is arranged on the right side of the inner wall of the treatment box, the bottom of the reaction tank is fixedly connected with a support plate, the bottom of the inner wall of the reaction tank is fixedly connected with a motor, the output end of the motor passes through the top of the support plate and is fixedly connected with a stirring frame, both sides of the top of the inner wall of the stirring frame are fixedly connected with heating rods, the bottom of the heating rods is fixedly connected with both sides of the bottom of the inner wall of the stirring frame, a second filter plate is inlaid on the right side of the top of the support plate, the right side of the bottom of the support plate is connected with a drain pipe, the bottom of the drain pipe passes through the treatment box The right side of the bottom of the box, the right side of the rear side of the top of the treatment box is connected to the reactant addition bucket, and the bottom of the right side of the drain pipe is plugged with a first sealing plate; a sterilization mechanism, which includes an ultraviolet lamp ring, a plurality of ultraviolet lamp rings are arranged and are distributed at equal distances, the ultraviolet lamp ring is waterproof, the surface of the ultraviolet lamp ring is fixedly connected to the inner wall of the drain pipe, the drain pipe is made of acrylic material, and the surface of the drain pipe is covered with a reflective cloth; and, an iron filings adsorption mechanism, which includes a screw, the bottom of the screw is fixedly connected to the top of the stirring frame, and the inside of the filter tank A first electromagnet is provided on the right side, a screw sleeve is provided on the bottom of the screw surface, a transmission slide rod is fixedly connected on both sides of the screw sleeve, the top of the transmission slide rod passes through the right side of the top of the processing box and is fixedly connected to a transmission frame, the other end of the transmission frame passes through the inner wall of the filter tank and is fixedly connected to the top of the first electromagnet, a scraping assembly is movably connected to the bottom of the first electromagnet, a collecting assembly is provided on the left side of the top of the inner wall of the filter tank, an injection mechanism is inlaid on the top of the processing box, and a blowing mechanism is fixedly connected to the bottom of the right side of the transmission frame.

[0008] As a preferred solution of the domestic sewage treatment device of the water conservancy project described in the present invention, the scraping assembly comprises a connecting piece, the top of the connecting piece is fixedly connected to the two sides of the bottom of the first electromagnet, a movable frame is arranged on the right side of the connecting piece, the left sides of the two sides of the inner wall of the movable frame are movably connected to the outer side of the connecting piece, a scraping strip is arranged on the right side of the movable frame, the right side of the scraping strip contacts the bottom of the left side of the first filter plate, the bottom of the outer side of the connecting piece is fixedly connected to the limiting strip, the left side of the scraping strip is fixedly connected to a movable rod, the movable rod is provided with a plurality of them and distributed at equal distances, the left side of the movable rod penetrates to the inner side of the movable frame and is slidably connected to the movable frame, the left side of the movable rod is fixedly connected to the limiting disk, the right side of the limiting disk is fixedly connected to a tension spring, the tension spring is sleeved on the left side of the surface of the movable rod, the other end of the tension spring is fixedly connected to the right side of the inner wall of the movable frame, and the top of the movable frame is movably connected to a lifting component.

[0009] As a preferred solution of the domestic sewage treatment device of the water conservancy project described in the present invention, wherein: the collecting component includes a movable groove, the movable groove is opened on the left side of the top of the treatment box, the interior of the movable groove is slidably connected with a collecting cover, the interior of the collecting cover is fixedly connected with gauze, both sides of the top of the collecting cover are fixedly connected with limiting slides, the inner wall of the limiting slide is slidably connected to the left sides of both sides of the top of the treatment box, the top of the left side of the transmission frame is fixedly connected with a connecting strip, the outer side of the connecting strip is movably connected with a connecting plate, and the left side of the inner side of the connecting plate is movably connected to the left sides of both sides of the top of the collecting cover.

[0010] As a preferred solution of the domestic sewage treatment device of the water conservancy project described in the present invention, wherein: the lifting component includes an iron sheet, the bottom of the iron sheet is movably connected to the top of the movable frame, a second electromagnet is fixedly connected to the right side of the top of the inner wall of the filter tank, a push switch is arranged on the left side of the second electromagnet, the top of the push switch is fixedly connected to the right side of the top of the inner wall of the filter tank, the push switch is electrically connected to the second electromagnet, and a press plate is fixedly connected to the left side of the top of the first electromagnet.

[0011] As a preferred solution of the domestic sewage treatment device of the water conservancy project described in the present invention, the jet mechanism includes an air bag, the air bag is embedded in the top of the treatment box, the bottom of the air bag is provided with a jet pipe, the left side of the jet pipe is provided with a jet hole, a plurality of jet holes are provided and are distributed equidistantly in a rectangular shape, both sides of the top of the air bag are connected to a first air inlet one-way valve, both sides of the bottom of the air bag are connected to a first air outlet one-way valve, the air bag is connected to the jet pipe through the first air outlet one-way valve, and the top of the air bag is fixedly connected to the top of the inner side of the transmission frame.

[0012] As a preferred solution of the domestic sewage treatment device of the water conservancy project described in the present invention, the blowing mechanism comprises a transmission rod, the left side of the transmission rod is fixedly connected to the top of the right side of the transmission frame, the right side of the bottom of the transmission rod is fixedly connected to a piston rod, the right side of the treatment box is fixedly connected to an air storage tank, the output end of the air storage tank is connected to an air blowing pipe, the left side of the air blowing pipe penetrates to the bottom of the right side of the inner wall of the reaction tank, the top of the right side of the treatment box is fixedly connected to an air pump, the inner wall of the air pump is movably connected to the bottom of the piston rod surface, the bottom of the right side of the air pump is connected to a second air inlet check valve, the bottom of the air pump is connected to a second air outlet check valve, the bottom of the right side of the inner wall of the reaction tank is fixedly connected to an air guide plate, the bottom of the air pipe is plugged with a synchronous switch assembly, and the left side of the top of the support plate is connected to a discharge assembly.

[0013] As a preferred solution of the domestic sewage treatment device of the water conservancy project described in the present invention, wherein: the synchronous switch assembly includes a second sealing plate, the surface of the second sealing plate is plugged into the bottom of the air blowing pipe, the bottom of the second sealing plate is fixedly connected with an inclined block, the right sides of both sides of the top of the inclined block are fixedly connected with springs, the other end of the spring is fixedly connected to the right side of the bottom of the air blowing pipe, the bottom of the inclined block is movably connected with a push block, the right side of the bottom of the push block is fixedly connected with a pull rod, the other end of the pull rod is fixedly connected to the right side of the first sealing plate, the bottom of the right side of the treatment box is fixedly connected with a limiting plate, and the limiting plate is located on the left side of the bottom of the push block.

[0014] As a preferred solution of the domestic sewage treatment device of the water conservancy project described in the present invention, wherein: the discharge component includes a sewage trough, the sewage trough is opened on the left side of the top of the support plate, the top of the inner wall surface of the sewage trough is inclined, the bottom of the left side of the stirring frame is fixedly connected with a rubber strip, the bottom of the rubber strip is in contact with the top of the support plate, the left side of the bottom of the support plate is connected with a sewage pipe, the bottom of the sewage pipe passes through the bottom of the treatment box and is connected with a sewage valve.

[0015] The beneficial effects of the present invention are as follows: when treating sewage, a filtering mechanism is used for filtering and a disinfection flocculation mechanism is used to disinfect the sewage and to adsorb and separate suspended matter; when filtering sewage, an iron filings adsorption mechanism is used to adsorb iron filings in the sewage, and at the same time, a jet mechanism is activated to assist in blowing away the filtered material; during the sewage discharge process, a blowing mechanism is activated to blow away the filtered flocs.

[0016] In view of the problems existing in the treatment methods of the existing domestic sewage treatment devices of water conservancy projects, the present invention is proposed.

[0017] Therefore, the object of the present invention is to provide a treatment method for a domestic sewage treatment device of a water conservancy project, the purpose of which is to collect iron filings, increase the filtration speed and assist in sterilization.

[0018] In order to solve the above technical problems, the present invention provides the following technical solutions: comprising:

[0019] When treating sewage, a filtering mechanism is used to filter and a disinfecting flocculation mechanism is used to disinfect the sewage and absorb and separate the suspended solids;

[0020] When filtering sewage, the iron scraps adsorption mechanism is used to adsorb the iron scraps in the sewage, and the jet mechanism is activated to assist in blowing away the filtrate;

[0021] During the sewage discharge process, the blowing mechanism will be activated to blow away the filtered flocculants;

[0022] When the sewage treatment is completed and discharged, a sterilization mechanism is used to sterilize the water in the discharge process.

[0023] As a preferred solution of the treatment method of the domestic sewage treatment device of the water conservancy project of the present invention, it includes:

[0024] When treating sewage, a filtering mechanism can be used to filter the sewage, and the filtered sewage is passed through a disinfection flocculation mechanism to disinfect the sewage and adsorb and separate the suspended matter;

[0025] When filtering sewage, the iron chips are adsorbed by the iron chips adsorption mechanism and can be collected, which can not only recover the iron chips in the sewage but also improve the recovery rate of the iron chips. At the same time, the jet mechanism will be started to intermittently blow the first filter plate to blow away the filtered objects;

[0026] During the sewage discharge process, the blowing mechanism will be activated to blow away the filtered floccules to prevent a large amount of floccules from blocking the second filter plate and reducing the sewage discharge efficiency;

[0027] When sewage treatment is completed and discharged, a sterilization mechanism is used to sterilize the discharged sewage to avoid the presence of a large amount of organic matter and pathogenic microorganisms that may reduce the efficiency of subsequent water treatment.

[0028] The beneficial effects of the present invention are as follows: when treating sewage, a filtering mechanism can be used to filter the sewage, and the filtered sewage is disinfected by a disinfection and flocculation mechanism and suspended matter is adsorbed and separated; when filtering sewage, an iron filings adsorption mechanism is used to adsorb iron filings and the adsorbed iron filings can be collected, which can not only recover the iron filings in the sewage but also improve the recovery rate of the iron filings; at the same time, the jet mechanism is started to intermittently blow the first filter plate to blow away the filtered material; during the sewage discharge process, the blowing mechanism is started to blow away the filtered flocculants to avoid a large amount of flocculants from affecting the second filter plate and reducing the sewage discharge efficiency; when the sewage treatment is completed and discharged, the sterilization mechanism is used to sterilize the discharged sewage to avoid the situation where a large amount of organic matter and pathogenic microorganisms exist and reduce the subsequent water treatment efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. Among them:

[0030] Figure 1 The present invention provides an overall structural diagram.

[0031] Figure 2 This is a schematic cross-sectional structure diagram of the processing box provided by the present invention.

[0032] Figure 3 This is a schematic diagram of the three-dimensional structure of the transmission frame provided by the present invention.

[0033] Figure 4 This is a schematic diagram of the three-dimensional structure of the airbag bag provided by the present invention.

[0034] Figure 5 This is a schematic diagram of the three-dimensional structure of the first electromagnet provided by the present invention.

[0035] Figure 6 This is a schematic diagram of the cross-sectional structure of the air pump provided by the present invention.

[0036] Figure 7 A schematic diagram of the three-dimensional structure of the collection hood provided by the present invention.

[0037] Figure 8 This is a schematic diagram of the cross-sectional structure of the support plate provided by the present invention.

[0038] Fig. 9 The present invention provides Figure 2 A in the figure is an enlarged structural diagram.

[0039] Fig.10 The present invention provides Figure 2 The enlarged structural diagram at B in FIG.

[0040] Fig.11 The present invention provides Figure 2 The enlarged structural diagram at C in the figure. DETAILED DESCRIPTION

[0041] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0042] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0043] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments.

[0044] Secondly, the present invention is described in detail with reference to the schematic diagram. When describing the embodiments of the present invention in detail, for the sake of convenience, the cross-sectional diagrams showing the device structure will not be partially enlarged according to the general scale, and the schematic diagrams are only examples, which should not limit the scope of protection of the present invention. In addition, in actual production, the three-dimensional dimensions of length, width and depth should be included.

[0045] Reference Figures 1 to 11 , which is the first embodiment of the present invention, provides a treatment method for a domestic sewage treatment device of a water conservancy project. Through the treatment method for the domestic sewage treatment device of a water conservancy project, iron filings can be collected and the filtering efficiency and sewage treatment effect can be improved.

[0046] When treating sewage, the filtering mechanism 100 can continuously filter the injected sewage. During the filtering process, the filtered sewage will enter the reaction tank 201 and the disinfection flocculation mechanism 200 will be used to disinfect the sewage and absorb and separate the suspended matter.

[0047] When filtering sewage, the iron scraps adsorption mechanism 400 can move up and down to adsorb the iron scraps in the sewage, and can collect the adsorbed iron scraps, which can not only recover the iron scraps in the sewage but also improve the recovery rate of the iron scraps. At the same time, the jet mechanism 500 will be started to intermittently blow the first filter plate 105 to assist in blowing away the filtered objects, thereby improving the efficiency of the initial filtration of sewage;

[0048] During the sewage discharge process, the blowing mechanism 600 is activated to blow away the filtered floccules, so that the floccules are separated from the second filter plate 206, thereby preventing a large amount of floccules from blocking the second filter plate 206 and reducing the sewage discharge efficiency, thereby improving the sewage treatment efficiency;

[0049] When the sewage treatment is completed and discharged, the sterilization mechanism 300 is used to irradiate the water in the discharge process with ultraviolet rays to achieve a sterilization effect, thereby improving the sewage treatment effect and avoiding the situation where the subsequent water treatment efficiency is reduced due to the presence of a large amount of organic matter and pathogenic microorganisms in the discharged sewage.

[0050] Reference Figure 1 , 2 4 is a second embodiment of the present invention, which provides an air jet mechanism 500, through which the first filter plate 105 is auxiliary cleaned.

[0051] The jet mechanism 500 includes an airbag bag 501, which is embedded in the top of the processing box 101. A jet pipe 502 is arranged at the bottom of the airbag bag 501. A jet hole 503 is opened on the left side of the jet pipe 502. There are a plurality of jet holes 503 which are equally spaced and arranged in a rectangular shape. Both sides of the top of the airbag bag 501 are connected to a first air inlet check valve 504, and both sides of the bottom of the airbag bag 501 are connected to a first air outlet check valve 505. The airbag bag 501 is connected to the jet pipe 502 through the first air outlet check valve 505, and the top of the airbag bag 501 is fixedly connected to the top of the inner side of the transmission frame 405.

[0052] Specifically, when the airbag bag 501 is squeezed, air will be ejected through the jet hole 503 opened on the jet pipe 502 and impact the right side of the first filter plate 105. Some relatively small impurities that cannot pass through the first filter plate 105 and enter the reaction tank 201 and are stuck inside the first filter plate 105 can be pushed to the left by the airflow ejected from the jet pipe 502, thereby improving the filtering efficiency of the first filter plate 105 and avoiding blockage of the first filter plate 105.

[0053] Furthermore, in the process of the transmission frame 405 continuously moving up and down, the airbag bag 501 will be pulled or squeezed synchronously. Whenever the airbag bag 501 is squeezed, the air in the airbag bag 501 will be squeezed and discharged through the first air outlet one-way valve 505, and then the air will be ejected through the jet hole 503 opened on the jet pipe 502, and then the ejected gas will impact the right side of the first filter plate 105, and some relatively small impurities that cannot pass through the first filter plate 105 to enter the reaction tank 201 and are stuck inside the first filter plate 105 can be pushed to the left by the airflow ejected from the jet pipe 502, thereby improving the filtering efficiency of the first filter plate 105 and avoiding the blockage of the first filter plate 105. Whenever the top of the airbag bag 501 is pulled, the air pressure in the airbag bag 501 will be lower than the external atmospheric pressure, and then the external air will enter the interior of the airbag bag 501 through the first air inlet one-way valve 504 for replenishment, and so on.

[0054] Reference Figures 1 to 11 , which is the third embodiment of the present invention, provides a blowing mechanism 600, through which the second filter plate 206 is assisted in cleaning.

[0055] The blowing mechanism 600 includes a transmission rod 601, the left side of the transmission rod 601 is fixedly connected to the top of the right side of the transmission frame 405, the right side of the bottom of the transmission rod 601 is fixedly connected to a piston rod 602, the right side of the processing box 101 is fixedly connected to a gas storage tank 610, the output end of the gas storage tank 610 is connected to an air blowing pipe 603, the left side of the air blowing pipe 603 penetrates to the bottom of the right side of the inner wall of the reaction tank 201, the top of the right side of the processing box 101 is fixedly connected to an air pump 604, the inner wall of the air pump 604 is movably connected to the bottom of the surface of the piston rod 602, the bottom of the right side of the air pump 604 is connected to a second air inlet check valve 605, the bottom of the air pump 604 is connected to a second air outlet check valve 606, the bottom of the right side of the inner wall of the reaction tank 201 is fixedly connected to an air guide plate 607, the bottom of the air blowing pipe 603 is plugged with a synchronous switch assembly 608, and the left side of the top of the support plate 202 is connected to a discharge assembly 609.

[0056] The synchronous switch assembly 608 includes a second sealing plate 608a, the surface of which is plugged into the bottom of the air blowing tube 603, and a bevel block 608b is fixedly connected to the bottom of the second sealing plate 608a. The right sides of both sides of the top of the bevel block 608b are fixedly connected to springs 608c, and the other end of the spring 608c is fixedly connected to the right side of the bottom of the air blowing tube 603. A push block 608d is movably connected to the bottom of the bevel block 608b, and a pull rod 608e is fixedly connected to the right side of the bottom of the push block 608d, and the other end of the pull rod 608e is fixedly connected to the right side of the first sealing plate 209. A limit plate 608f is fixedly connected to the bottom of the right side of the processing box 101, and the limit plate 608f is located on the left side of the bottom of the push block 608d.

[0057] The discharge component 609 includes a drain trough 609a, which is opened on the left side of the top of the support plate 202. The top of the inner wall surface of the drain trough 609a is inclined. A rubber strip 609b is fixedly connected to the bottom of the left side of the stirring frame 204. The bottom of the rubber strip 609b is in contact with the top of the support plate 202. A drain pipe 609c is connected to the left side of the bottom of the support plate 202. The bottom of the drain pipe 609c passes through the bottom of the processing box 101 and is connected to a drain valve 609d.

[0058] Specifically, when the sewage treatment in the reaction tank 201 is completed and discharged, the flocculants in the sewage will be filtered through the second filter plate 206. At this time, the air blowing pipe 603 can be opened to blow out the air stored in the air storage tank 610, and the blown air flow will be blown to the top of the second filter plate 206 under the guidance of the air guide plate 607, and the flocculants above the second filter plate 206 will be blown away by the air flow, so that the second filter plate 206 is no longer blocked, thereby ensuring the efficiency of sewage discharge.

[0059] Specifically, when the user opens the drain pipe 207, the air blowing pipe 603 will be opened synchronously. When the user closes the drain pipe 207, the air blowing pipe 603 will be sealed synchronously, so that the drain pipe 207 and the air blowing pipe 603 can be closed and opened at the same time, ensuring that the airflow can blow the top of the second filter plate 206 in time under the drainage condition.

[0060] Specifically, the motor 203 is started to drive the stirring frame 204 to rotate in forward and reverse directions, and then the stirring frame 204 will drive the rubber strip 609b to rotate in forward and reverse directions, continuously scraping the floccules remaining at the bottom of the inner wall of the reaction tank 201 to be discharged close to the position of the drain tank 609a, and then the top of the inner wall surface of the drain tank 609a is inclined, thereby improving the discharge efficiency of the floccules.

[0061] Furthermore, in the process of the transmission frame 405 continuously moving up and down, the transmission rod 601 will be continuously driven to move up and down, and then the transmission rod 601 will continuously drive the piston rod 602 to move up and down. Whenever the piston rod 602 moves upward, the air pressure in the space below the piston rod 602 will be insufficient, and then the outside air will enter the space below the piston rod 602 through the second air inlet check valve 605 for replenishment. Whenever the piston rod 602 moves downward, the gas in the space below the piston rod 602 will be pushed into the air storage tank 610 through the second air outlet check valve 606 for replenishment. The air storage tank 610 can replenish the internal air pressure when the piston rod 602 continuously moves up and down. When the sewage in the reaction tank 201 is treated and discharged, the flocculants in the sewage will be filtered through the second filter plate 206. At this time, the air blowing pipe 603 can be opened to blow out the air stored in the air storage tank 610. The blown airflow will be blown to the top of the second filter plate 206 under the guidance of the air guide plate 607, and the flocculants above the second filter plate 206 will be blown away by the airflow, so that the second filter plate 206 is no longer blocked, thereby ensuring the efficiency of sewage discharge.

[0062] Furthermore, when the user needs to pull the first sealing plate 209 to open the drain pipe 207, the user can pull the pull rod 608e to the right, and then the pull rod 608e will pull the first sealing plate 209 to the right to open the drain pipe 207. At the same time, the pull rod 608e will also pull the push block 608d to the right, so that the push block 608d and the inclined block 608b are gradually separated, and then the elastic force of the spring 608c is released to drive the inclined block 608b to move downward, so that the inclined block 608b drives the second sealing plate 608a to move downward. At this time, the air blowing pipe 603 will be opened synchronously, and at the same time, the inclined block 608b is limited by the limiting piece 608f to the maximum downward movement distance to avoid The inclined block 608b moves downward too far, causing the second sealing plate 608a to fall off directly. When the user moves the pull rod 608e to the left to drive the first sealing plate 209 to close the drain pipe 207, the pull rod 608e will drive the push block 608d to move to the left, and then the push block 608d will push the inclined block 608b upward through the inclined surface at the bottom of the inclined block 608b, and then the inclined block 608b will drive the second sealing plate 608a to seal the blowing pipe 603 and squeeze the spring 608c at the same time, so that the drain pipe 207 and the blowing pipe 603 can be closed and opened at the same time, ensuring that the airflow can blow the top of the second filter plate 206 in time under the drainage condition.

[0063] Furthermore, after the sewage in the reaction tank 201 is completely discharged, a large amount of floccules will remain. At this time, the motor 203 can be started to drive the stirring frame 204 to rotate, and then the stirring frame 204 will drive the rubber strip 609b to rotate in forward and reverse directions, and then the rubber strip 609b will continuously scrape the floccules remaining at the bottom of the inner wall of the reaction tank 201 close to the sewage tank 609a, and at the same time open the sewage valve 609d, so that the floccules close to the sewage tank 609a are discharged through the sewage tank 609a, and then the top of the inner wall surface of the sewage tank 609a is inclined, so that the discharge efficiency of the floccules is improved.

[0064] The remaining structure is the same as that of Example 2.

[0065] Reference Figures 1 to 11 , which is the fourth embodiment of the present invention. This embodiment is different from the third embodiment in that: this embodiment provides a domestic sewage treatment device and method for a water conservancy project.

[0066] When sewage needs to be treated, the user can let the sewage enter the filter tank 102 in the treatment box 101 through the water inlet pipe 106, and use the partition plate 103 to block the sewage in the upper part of the filter tank 102, and then the sewage will pass through the first filter plate 105 to filter out larger impurities.

[0067] The sewage that has been initially filtered will enter the reaction tank 201 opened inside the treatment box 101, and the motor 203 will be used to drive the stirring frame 204 to rotate repeatedly in forward and reverse directions to continuously stir the sewage added to the reaction tank 201. Then, the disinfectant and flocculant can be added to the reaction tank 201 through the reactant adding bucket 208, and the sewage that continuously enters the reaction tank 201 will be mixed with the disinfectant and flocculant to disinfect the sewage. At the same time, the suspended matter in the water is adsorbed and separated to produce floccules. At the same time, the heating rod 205 can be turned on to heat the sewage to increase the reaction speed.

[0068] When the sewage treatment is completed and needs to be discharged, stop adding sewage, and pull the first sealing plate 209 to the right after the sewage treatment is completed, and then the sewage will be discharged through the drain pipe 207. Then, the ultraviolet lamp ring 301 can be turned on to generate ultraviolet light and irradiate the sewage in the drain pipe 207, so as to sterilize the discharged sewage, and avoid the situation where a large amount of organic matter and pathogenic microorganisms in the discharged sewage lead to a decrease in the subsequent water treatment efficiency. The ultraviolet light will be irradiated outward through the acrylic drain pipe 207, and then the reflective cloth 302 can be used to continuously refract the excess ultraviolet light inward, so that the sewage is more fully irradiated by the ultraviolet light, thereby improving the effect of sewage treatment.

[0069] During the process of preliminary filtration of the sewage by the first filter plate 105, the motor 203 can be turned on to drive the stirring frame 204 to continuously stir the sewage. When the stirring frame 204 continuously and repeatedly rotates in positive and negative directions, the stirring frame 204 will drive the screw 401 to continuously rotate in positive and negative directions, and then the screw 401 will drive the screw sleeve 403 to move up and down, and then the screw sleeve 403 drives the transmission frame 405 to move up and down through the transmission slide rod 404, and then the transmission frame 405 will drive the first electromagnet 402 to move up and down. At this time, the first electromagnet 402 can be turned on, so that the first electromagnet 402 produces a strong magnetic attraction, and then the iron filings in the sewage in the filter tank 102 can be adsorbed, and because the first electromagnet 402 continuously moves up and down, the adsorption range of the iron filings is increased, ensuring that most of the iron filings in the sewage can be adsorbed.

[0070] In the process of the first electromagnet 402 moving up and down, the movable frame 406b will be driven to move synchronously, and the movable frame 406b is limited by the limiting bar 406d, so that the movable frame 406b can be limited by the maximum rotation space, and the movable frame 406b is prevented from rotating downward. Then, in the process of the movable frame 406b moving, the scraper bar 406c will be driven to move synchronously, and then the right side of the scraper bar 406c is used to contact the left side of the first filter plate 105, so that the first filter plate 105 can be scraped by the scraper bar 406c in the process of continuously filtering the sewage, thereby preventing some larger filtered objects from always covering the first filter plate 105. The left side causes the filtering efficiency of the first filter plate 105 to be affected. At the same time, the tension of the tension spring 406g can pull the limit plate 406f to apply force to the right, and then the limit plate 406f will generate a rightward force on the scraper bar 406c through the movable rod 406e, thereby ensuring the cleaning effect of the scraper bar 406c on the first filter plate 105, and a large amount of impurities scraped off by the scraper bar 406c will be dispersed into the sewage again. At the same time, these impurities are closer to the first electromagnet 402, and some iron filings among these impurities that are not adsorbed by the first electromagnet 402 will be adsorbed by the first electromagnet 402, ensuring that the first electromagnet 402 can adsorb a large amount of iron filings.

[0071] Whenever the first electromagnet 402 moves upward to the maximum distance, the pressing plate 406h-4 connected to the left side of the first electromagnet 402 will press the pressing switch 406h-3, and then the pressing switch 406h-3 will activate the second electromagnet 406h-2, and the magnetic force of the second electromagnet 406h-2 is greater than the magnetic force of the first electromagnet 402, so that as the first electromagnet 402 moves upward, the iron sheet 406h-1 on the movable frame 406b will be attracted by the second electromagnet 406h-2, and then the iron sheet 406h-1 will drive the movable frame 406b to deflect upward, and then the movable frame 406b will drive the scraper 406c to deflect upward. During the deflection process of the scraper 406c, the tension of the tension spring 406g can ensure that the scraper 406c continues to be in contact with the first filter plate 105 406h-2, and the second electromagnet 406h-2 is closed by the pressing switch 406h-3. The iron filings separated from the second electromagnet 406h-2 will be affected by the magnetic force of the first electromagnet 402 again and adsorbed on the surface of the first electromagnet 402.

[0072] Whenever the transmission frame 405 moves upward, it will pull the connecting strip 407e to move upward, and then the connecting strip 407e will pull the right side of the connecting plate 407f to move upward, and then the left side of the connecting plate 407f will be affected by the collecting cover 407b and move continuously toward the right. When the right side of the connecting plate 407f moves upward to the maximum distance, it will drive the collecting cover 407b to cover the first electromagnet 402. Whenever the transmission frame 405 moves downward, it will pull the connecting strip 407e to move downward, and then the connecting strip 407e will pull the right side of the connecting plate 407f to move downward. At this time, the collecting cover 407b is limited downward by the limiting slide 407d, so that the other side of the connecting plate 407f can only drive the collecting cover 407b to slide to the left and reset. This reciprocating movement makes it possible for the user to collect too many iron filings adsorbed on the surface of the first electromagnet 402 when the user moves upward to the maximum distance on the right side of the connecting plate 407f, and then turn off the motor 203 to prevent the first electromagnet 402 from moving. At the same time, the collecting cover 407b will cover the first electromagnet 402, and then turn off the first electromagnet 402, causing the first electromagnet 402 to lose its magnetic force. The iron filings adsorbed on the first electromagnet 402 will fall down and be collected by the collecting cover 407b. The iron filings collected in the collecting cover 407b will carry moisture, which can penetrate downward through the gauze 407c and be discharged, while the iron filings will be isolated above the gauze 407c. At this time, the user can conveniently recycle the iron filings in the collecting cover 407b.

[0073] When the transmission frame 405 is continuously moving up and down, the airbag bag 501 will be pulled or squeezed synchronously. Whenever the airbag bag 501 is squeezed, the air in the airbag bag 501 will be squeezed and discharged through the first air outlet one-way valve 505, and then the air will be ejected through the jet hole 503 opened on the jet pipe 502, and then the ejected gas will impact the right side of the first filter plate 105, and some relatively small impurities that cannot pass through the first filter plate 105 to enter the reaction tank 201 and are stuck inside the first filter plate 105 can be pushed to the left by the airflow ejected from the jet pipe 502, thereby improving the filtering efficiency of the first filter plate 105 and avoiding the blockage of the first filter plate 105. Whenever the top of the airbag bag 501 is pulled, the air pressure in the airbag bag 501 will be lower than the external atmospheric pressure, and then the external air will enter the interior of the airbag bag 501 through the first air inlet one-way valve 504 for replenishment, and so on.

[0074] In the process of the transmission frame 405 continuously moving up and down, it will also continuously drive the transmission rod 601 to move up and down, and then the transmission rod 601 will continuously drive the piston rod 602 to move up and down. Whenever the piston rod 602 moves upward, the air pressure in the space below the piston rod 602 will be insufficient, and then the outside air will enter the space below the piston rod 602 through the second air inlet check valve 605 for replenishment. Whenever the piston rod 602 moves downward, it will push the gas in the space below the piston rod 602 through the second air outlet check valve 606 to enter the inside of the air storage tank 610 for replenishment, so that The air storage tank 610 can replenish the internal air pressure when the piston rod 602 continuously moves up and down. When the sewage treatment in the reaction tank 201 is completed and discharged, the flocculants in the sewage will be filtered through the second filter plate 206. At this time, the air blowing pipe 603 can be opened to blow out the air stored in the air storage tank 610, and the blown air flow will be blown to the top of the second filter plate 206 under the guidance of the air guide plate 607, and the flocculants above the second filter plate 206 will be blown away by the air flow, so that the second filter plate 206 is no longer blocked, thereby ensuring the efficiency of sewage discharge.

[0075] When the user needs to pull the first sealing plate 209 to open the drain pipe 207, the user can pull the pull rod 608e to the right, and then the pull rod 608e will pull the first sealing plate 209 to move to the right to open the drain pipe 207. At the same time, the pull rod 608e will also pull the push block 608d to the right, so that the push block 608d and the inclined block 608b are gradually separated, and then the elastic force of the spring 608c is released to drive the inclined block 608b to move downward, so that the inclined block 608b drives the second sealing plate 608a to move downward. At this time, the air blowing pipe 603 will be opened synchronously, and at the same time, the inclined block 608b is limited by the limiting piece 608f to the maximum downward movement distance to avoid the inclined block 608d from moving downward. 08b moves downward too far, causing the second sealing plate 608a to fall off directly. When the user moves the pull rod 608e to the left to drive the first sealing plate 209 to close the drain pipe 207, the pull rod 608e will drive the push block 608d to move to the left, and then the push block 608d will push the inclined block 608b upward through the inclined surface at the bottom of the inclined block 608b, and then the inclined block 608b will drive the second sealing plate 608a to seal the blowing pipe 603 and squeeze the spring 608c at the same time, so that the drain pipe 207 and the blowing pipe 603 can be closed and opened at the same time, ensuring that the airflow can blow the top of the second filter plate 206 in time under the drainage condition.

[0076] After the sewage in the reaction tank 201 is completely discharged, a large amount of floccules will remain. At this time, the motor 203 can be started to drive the stirring frame 204 to rotate, and then the stirring frame 204 will drive the rubber strip 609b to rotate in forward and reverse directions, and then the rubber strip 609b will continuously scrape the floccules remaining at the bottom of the inner wall of the reaction tank 201 close to the sewage tank 609a, and at the same time open the sewage valve 609d, so that the floccules close to the sewage tank 609a are discharged through the sewage tank 609a, and then the top of the inner wall surface of the sewage tank 609a is inclined, so that the discharge efficiency of the floccules is improved.

[0077] In summary, when treating sewage, the filtering mechanism 100 and the disinfecting flocculation mechanism 200 can filter and disinfect the sewage and separate the suspended matter by adsorption. When filtering the sewage, the iron filings adsorption mechanism 400 and the jet mechanism 500 can be used to adsorb the iron filings and clean the first filter plate 105. During the sewage discharge process, the blowing mechanism 600 will be activated to blow away the filtered flocculants. When the sewage is treated inside and discharged, the sterilization mechanism 300 can be used to sterilize the sewage.

[0078] Importantly, it should be noted that the construction and arrangement of the present application shown in a number of different exemplary embodiments are only exemplary. Although only a few embodiments are described in detail in this disclosure, it should be readily understood by those who refer to this disclosure that many modifications are possible, for example, the size, scale, structure, shape and proportion of various elements, and parameter values ​​such as temperature, pressure, etc., mounting arrangements, use of materials, color, directional changes, etc., without substantially departing from the novel angles and advantages of the subject matter described in the application. For example, the element shown as integrally formed can be composed of multiple parts or elements, the position of the element can be inverted or otherwise changed, and the nature or number or position of the discrete element can be changed or changed. Therefore, all such modifications are intended to be included in the scope of the present invention. The order or sequence of any process or method steps can be changed or reordered according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure of the execution function described herein, and is not only structurally equivalent but also equivalent structure. Without departing from the scope of the present invention, other replacements, modifications, changes and omissions can be made in the design, operating conditions and arrangement of the exemplary embodiments. Therefore, the present invention is not limited to a specific embodiment, but extends to a variety of modifications that still fall within the scope of the appended claims. In addition, in order to provide a concise description of the exemplary embodiments, all features of the actual embodiments may not be described, that is, those features that are not relevant to the best mode currently considered to carry out the invention, or those features that are not relevant to implementing the invention.

[0079] 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 preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A domestic sewage treatment device for a water conservancy project, characterized in that: A filtering mechanism (100) comprises a processing box (101), wherein a filtering tank (102) is provided on the left side of the processing box (101), a partition plate (103) is movably connected to the left side of the inner wall of the filtering tank (102), the right side of the partition plate (103) is clamped with the right side of the inner wall of the filtering tank (102), a collecting box (104) is provided on the left side of the front of the processing box (101), the back side of the collecting box (104) penetrates the inner wall of the filtering tank (102) and is slidably connected to the surface of the filtering tank (102), a first filtering plate (105) is inlaid on the top of the right side of the inner wall of the filtering tank (102), and a water inlet pipe (106) is connected to the top of the left side of the processing box (101); A disinfection flocculation mechanism (200) comprises a reaction tank (201), wherein the reaction tank (201) is disposed on the right side of the inner wall of the treatment box (101), a support plate (202) is fixedly connected to the bottom of the reaction tank (201), a motor (203) is fixedly connected to the bottom of the inner wall of the reaction tank (201), an output end of the motor (203) passes through the top of the support plate (202) and is fixedly connected to a stirring frame (204), and heating rods (205) are fixedly connected to both sides of the inner wall top of the stirring frame (204). The bottom of the heating rod (205) is fixedly connected to both sides of the bottom of the inner wall of the stirring frame (204); the right side of the top of the support plate (202) is inlaid with a second filter plate (206); the right side of the bottom of the support plate (202) is connected to a drain pipe (207); the bottom of the drain pipe (207) passes through to the right side of the bottom of the processing box (101); the right side of the rear side of the top of the processing box (101) is connected to a reactant addition bucket (208); and the bottom of the right side of the drain pipe (207) is plugged with a first sealing plate (209); A sterilization mechanism (300) comprising an ultraviolet light ring (301), wherein a plurality of ultraviolet light rings (301) are provided and are distributed at equal distances, wherein the ultraviolet light ring (301) is waterproof, wherein the surface of the ultraviolet light ring (301) is fixedly connected to the inner wall of the drain pipe (207), wherein the drain pipe (207) is made of acrylic material, and wherein the surface of the drain pipe (207) is covered with a reflective cloth (302); and, The iron chip adsorption mechanism (400) comprises a screw rod (401), the bottom of the screw rod (401) is fixedly connected to the top of the stirring frame (204), a first electromagnet (402) is arranged on the right side of the inside of the filter tank (102), a screw sleeve (403) is sleeved on the bottom of the surface of the screw rod (401), both sides of the screw sleeve (403) are fixedly connected to a transmission slide rod (404), the top of the transmission slide rod (404) passes through the top of the processing box (101) and is fixedly connected to the right side of the top of the processing box (101). The transmission frame (405) is provided with a transmission frame (405), the other end of the transmission frame (405) penetrates the inner wall of the filter tank (102) and is fixedly connected to the top of the first electromagnet (402), the bottom of the first electromagnet (402) is movably connected to a scraping assembly (406), a collecting assembly (407) is provided on the left side of the top of the inner wall of the filter tank (102), an air jet mechanism (500) is embedded on the top of the processing box (101), and a blowing mechanism (600) is fixedly connected to the bottom of the right side of the transmission frame (405); The blowing mechanism (600) comprises a transmission rod (601), the left side of the transmission rod (601) is fixedly connected to the top of the right side of the transmission frame (405), the right side of the bottom of the transmission rod (601) is fixedly connected to a piston rod (602), the right side of the processing box (101) is fixedly connected to a gas storage tank (610), the output end of the gas storage tank (610) is connected to a blowing pipe (603), the left side of the blowing pipe (603) passes through the bottom of the right side of the inner wall of the reaction tank (201), the top of the right side of the processing box (101) is fixedly connected to an air pump (604), and the air pump (604) is connected to the top of the right side of the processing box (101). The inner wall of the cylinder (604) is movably connected to the bottom of the surface of the piston rod (602); the bottom of the right side of the air pump (604) is connected to a second air inlet check valve (605); the bottom of the air pump (604) is connected to a second air outlet check valve (606); the second air outlet check valve (606) is connected to the air storage tank (610); the bottom of the right side of the inner wall of the reaction tank (201) is fixedly connected to an air guide plate (607); the bottom of the air blowing pipe (603) is plugged with a synchronous switch assembly (608); and the left side of the top of the support plate (202) is connected to a discharge assembly (609).

2. The domestic sewage treatment device for water conservancy projects according to claim 1 is characterized in that: The scraping assembly (406) comprises a connecting member (406a), the top of the connecting member (406a) is fixedly connected to both sides of the bottom of the first electromagnet (402), a movable frame (406b) is arranged on the right side of the connecting member (406a), the left sides of both sides of the inner wall of the movable frame (406b) are movably connected to the outer side of the connecting member (406a), a scraping strip (406c) is arranged on the right side of the movable frame (406b), the right side of the scraping strip (406c) contacts the bottom of the left side of the first filter plate (105), the bottom of the outer side of the connecting member (406a) is fixedly connected to a limiting strip (406d), and the left side of the scraping strip (406c) is fixedly connected to a movable frame (406c). A movable rod (406e), wherein a plurality of movable rods (406e) are provided and are distributed at equal distances, the left side of the movable rod (406e) penetrates the inner side of the movable frame (406b) and is slidably connected to the movable frame (406b), the left side of the movable rod (406e) is fixedly connected to a limiting plate (406f), the right side of the limiting plate (406f) is fixedly connected to a tension spring (406g), the tension spring (406g) is sleeved on the left side of the surface of the movable rod (406e), the other end of the tension spring (406g) is fixedly connected to the right side of the inner wall of the movable frame (406b), and the top of the movable frame (406b) is movably connected to a lifting component (406h).

3. The domestic sewage treatment device for water conservancy projects according to claim 1 is characterized in that: The collecting assembly (407) comprises a movable groove (407a), wherein the movable groove (407a) is opened on the left side of the top of the processing box (101), the inside of the movable groove (407a) is slidably connected to a collecting cover (407b), the inside of the collecting cover (407b) is fixedly connected to a gauze (407c), both sides of the top of the collecting cover (407b) are fixedly connected to limiting slides (407d), the inner wall of the limiting slides (407d) is slidably connected to the left sides of both sides of the top of the processing box (101), the top of the left side of the transmission frame (405) is fixedly connected to a connecting strip (407e), the outer side of the connecting strip (407e) is movably connected to a connecting plate (407f), and the left side of the inner side of the connecting plate (407f) is movably connected to the left sides of both sides of the top of the collecting cover (407b).

4. The domestic sewage treatment device for water conservancy projects according to claim 2 is characterized in that: The lifting component (406h) comprises an iron sheet (406h-1), the bottom of the iron sheet (406h-1) is movably connected to the top of the movable frame (406b), a second electromagnet (406h-2) is fixedly connected to the right side of the top of the inner wall of the filter tank (102), a pressing switch (406h-3) is arranged on the left side of the second electromagnet (406h-2), the top of the pressing switch (406h-3) is fixedly connected to the right side of the top of the inner wall of the filter tank (102), the pressing switch (406h-3) is electrically connected to the second electromagnet (406h-2), and a pressing plate (406h-4) is fixedly connected to the left side of the top of the first electromagnet (402).

5. The domestic sewage treatment device for water conservancy projects according to claim 2 or 3, characterized in that: The jet mechanism (500) comprises an air bag (501), wherein the air bag (501) is embedded in the top of the processing box (101), an air jet pipe (502) is arranged at the bottom of the air bag (501), an air jet hole (503) is opened on the left side of the air jet pipe (502), a plurality of air jet holes (503) are opened and are distributed at equal distances in a rectangular shape, both sides of the top of the air bag (501) are connected to a first air inlet check valve (504), both sides of the bottom of the air bag (501) are connected to a first air outlet check valve (505), the air bag (501) is connected to the air jet pipe (502) via the first air outlet check valve (505), and the top of the air bag (501) is fixedly connected to the top of the inner side of the transmission frame (405).

6. The domestic sewage treatment device for water conservancy projects according to claim 1 is characterized by: The synchronous switch assembly (608) includes a second sealing plate (608a), the surface of which is plugged into the bottom of the air blowing tube (603), the bottom of the second sealing plate (608a) is fixedly connected with an inclined block (608b), the right sides of both sides of the top of the inclined block (608b) are fixedly connected with springs (608c), the other end of the spring (608c) is fixedly connected to the right side of the bottom of the air blowing tube (603), the bottom of the inclined block (608b) is movably connected with a push block (608d), the right side of the bottom of the push block (608d) is fixedly connected with a pull rod (608e), the other end of the pull rod (608e) is fixedly connected to the right side of the first sealing plate (209), the bottom of the right side of the processing box (101) is fixedly connected with a limiting plate (608f), and the limiting plate (608f) is located on the left side of the bottom of the push block (608d).

7. The domestic sewage treatment device for water conservancy projects according to claim 6 is characterized by: The discharge component (609) includes a drain trough (609a), wherein the drain trough (609a) is opened on the left side of the top of the support plate (202), and the top of the inner wall surface of the drain trough (609a) is inclined. A rubber strip (609b) is fixedly connected to the bottom of the left side of the stirring frame (204), and the bottom of the rubber strip (609b) is in contact with the top of the support plate (202). The left side of the bottom of the support plate (202) is connected to a drain pipe (609c), and the bottom of the drain pipe (609c) passes through the bottom of the processing box (101) and is connected to a drain valve (609d).

8. A method for treating domestic sewage in a water conservancy project, characterized in that: The domestic sewage treatment device for a water conservancy project comprises any one of claims 1 to 7, further comprising: When treating sewage, the filtering mechanism (100) is used for filtering and the disinfection flocculation mechanism (200) is used to disinfect the sewage and absorb and separate the suspended matter; When filtering sewage, the iron filings adsorption mechanism (400) is used to adsorb the iron filings in the sewage, and the jet mechanism (500) is activated to assist in blowing away the filtrate; During the sewage discharge process, the blowing mechanism (600) is activated to blow away the filtered flocculants; When the sewage treatment is completed and discharged, a sterilization mechanism (300) is used to sterilize the water in the discharge process.

9. The method for treating domestic sewage in a water conservancy project according to claim 8, characterized in that: include, When treating sewage, the filtering mechanism (100) can be used to filter the sewage, and the filtered sewage is passed through the disinfection flocculation mechanism (200) to disinfect the sewage and adsorb and separate suspended matter; When filtering sewage, the iron chips are adsorbed by the iron chip adsorption mechanism (400), and the adsorbed iron chips are collected, so that the iron chips in the sewage can be recovered and the recovery rate of the iron chips can be improved. At the same time, the jet mechanism (500) is activated to intermittently blow the first filter plate (105) to blow away the filtered material; During the sewage discharge process, the blowing mechanism (600) is activated to blow away the filtered floccules, so as to prevent a large amount of floccules from blocking the second filter plate (206) and causing a reduction in the sewage discharge efficiency; When the sewage treatment is completed and discharged, the sterilization mechanism (300) is used to sterilize the discharged sewage to avoid the situation where the subsequent water treatment efficiency is reduced due to the presence of a large amount of organic matter and pathogenic microorganisms.

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