Water pollution treatment device

Abstract

The invention discloses a water pollution treatment device, and relates to the technical field of sewage treatment. The device comprises a filtering treatment device and a water pump used for pumping sewage in a farmland into the filtering treatment device, and the filtering treatment device is further communicated with a backflow irrigation device; the backflow irrigation device comprises a plurality of backflow irrigation units communicated in sequence, each backflow irrigation unit comprises a transverse pipe, pipe joints A are arranged at the two ends of each transverse pipe respectively, and a plurality of drainage holes are formed in the bottom side face of each transverse pipe in the length direction. Through the arrangement of the filtering treatment device, the water pump and the backflow irrigation device, sewage is lifted to the filtering treatment device at a high position through the water pump, the sewage is discharged into the backflow irrigation device after being treated by the filtering treatment device, and the sewage flows back into a farmland through the backflow irrigation device, so that sewage treatment is realized; when the backflow irrigation device drains water, water flow makes contact with air, and the oxygen content of water flowing back to a farmland is increased.

Description

Technical Field

[0001] The invention belongs to the technical field of sewage treatment, and in particular relates to a water pollution treatment device. Background Art

[0002] Agricultural sewage refers to sewage discharged from agricultural and animal husbandry production and precipitation or irrigation water flowing through farmland or water discharged through leakage from farmland; sewage in farmland mainly refers to water with low oxygen content and heavy metal ions in the water.

[0003] For example, CN210287069U discloses a farmland sewage treatment device, including a filtering device, an anaerobic tank, an anoxic tank, an aerobic tank and a sedimentation device, the right side of the filtering device is connected to the anaerobic tank, the right side of the anaerobic tank is connected to the anoxic tank, the right side of the anoxic tank is connected to the aerobic tank, the right side of the aerobic tank is connected to the sedimentation device, the moving component is located beside the filtering component, the lifting component is located above the filtering component, the blower is located on the left side of the filtering component, and the collecting tank is located on the left side of the blower; the device as a whole occupies a large space and is not convenient for direct use in the fields; at the same time, the treated water source cannot be directly irrigated, and the presence of plants and the like in the water body easily causes the dissolved oxygen content in the water body to decrease. Summary of the invention

[0004] The purpose of the present invention is to provide a water pollution treatment device. By setting up a filtering treatment device, a water pump and a backflow irrigation device, the sewage is lifted to the filtering treatment device at a high position by a water pump. After being treated by the filtering treatment device, the sewage is discharged into the backflow irrigation device and then returned to the farmland through the backflow irrigation device, thereby solving the problems raised by the existing background technology.

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

[0006] The present invention is a water pollution treatment device, comprising a filtering treatment device and a water pump for pumping sewage in farmland into the filtering treatment device, and the filtering treatment device is also connected to a return irrigation device; the return irrigation device comprises a plurality of return irrigation units connected in sequence, the return irrigation unit comprises a transverse pipe, pipe joints A are respectively arranged at both ends of the transverse pipe, and a plurality of drainage holes are arranged on the bottom side surface of the transverse pipe along the length direction; and a controller is also included, and the controller is connected to the water pump and a time module.

[0007] Furthermore, it also includes a solar panel and a battery, and the battery is used to power the water pump; the controller is connected to the server and obtains weather information from the server, and the weather information includes light intensity and time information, and uses the light intensity and time information; the controller is connected to a power detection module for detecting the remaining power of the battery.

[0008] Furthermore, it also includes a fixing sleeve for the horizontal pipe to pass through, a locking bolt A is provided on the fixing sleeve, and the fixing sleeve is connected to the end of a pillar; the backflow irrigation device is arranged at a higher position of the farmland, and the filtering and processing device is arranged at the farthest position from the backflow irrigation device in the farmland.

[0009] Furthermore, the filtering treatment device is a cylindrical shell, which is provided with four porous partitions in sequence from bottom to top and is divided into five chambers by the four porous partitions; an opening is provided on the side wall below any of the porous partitions, and a sealing cover is provided at the opening; the four chambers at the bottom are filled with a sand and gravel filling layer, a sand and gravel fine sand mixed filling layer, a fine sand filling layer and an activated carbon filling layer in sequence from bottom to top; a pipe joint B connected to a water pump is provided at the bottom of the shell, and an L-shaped drain pipe with a drain port facing downward is penetrated on one side of the top of the shell; a first water trough is provided directly below the L-shaped drain pipe, and a second water trough is provided directly below the first water trough, and a pipe joint C is provided at the bottom of the second water trough, and the pipe joint C is connected to a backflow irrigation device through a hose, and the bottom side of the second water trough is higher than the top of the horizontal pipe.

[0010] Furthermore, a convex ring is provided on the top inner side wall of the shell, and a mounting plate is sealingly installed on the convex ring; four internally threaded bosses are provided on the upper surface of the mounting plate, and a cylinder connected to the internally threaded bosses is provided on the bottom side of the mounting plate, and a pipe joint D is provided on the bottom of the cylinder; the four internally threaded bosses are cooperated with adsorption cylinder A, adsorption cylinder B, adsorption cylinder C and adsorption cylinder D; the adsorption cylinder A, adsorption cylinder B, adsorption cylinder C and adsorption cylinder D are connected in series; it also includes three tubes passing through the mounting plate, the tops of the adsorption cylinders A, adsorption cylinder B and adsorption cylinder C are all connected to the top of a tube body, and the pipe joints D corresponding to the adsorption cylinders A, adsorption cylinder B and adsorption cylinder C are connected to the bottom end of a tube body through pipelines; a sealing ring cooperating with the convex ring is provided on the bottom side of the mounting plate;

[0011] When in use, the water is filtered through the sand and gravel filling layer, the sand and gravel fine sand mixed filling layer, the fine sand filling layer and the activated carbon filling layer; the water then flows through the adsorption cylinder A, the adsorption cylinder B, the adsorption cylinder C and the adsorption cylinder D in sequence, and is discharged from the top of the adsorption cylinder D.

[0012] Furthermore, a pair of fixing parts for fixing the mounting plate on the convex ring are provided at the top of the shell; the fixing parts include a U-shaped frame, and the two ends of the U-shaped frame are respectively provided with outward L-shaped flanges, and the L-shaped flanges are threadedly connected with locking bolts B; the top of the shell is provided with a positioning opening for positioning the L-shaped flange; the bottom side surface of the U-shaped frame is connected to a clamping plate through a number of elastic telescopic sleeves A.

[0013] Furthermore, the adsorption cylinder A, adsorption cylinder B, adsorption cylinder C and adsorption cylinder D have the same structure; the adsorption cylinder A, adsorption cylinder B, adsorption cylinder C and adsorption cylinder D are filled with macroporous strong acid cation exchange resin, macroporous weak acid cation exchange resin, molecular sieve and selenium source particles in sequence, and the selenium source particles are natural selenium ore; the adsorption cylinder A includes a cylinder body, a top cover is arranged on the top of the cylinder body, and a pipe joint E connected to the pipe body is arranged on the top cover; the bottom of the cylinder body is connected to the external thread joint threadedly connected to the internal thread boss;

[0014] At least three supporting protrusions are arranged on the bottom side of the barrel body located on the peripheral side of the external threaded joint; the supporting protrusions include a column and a hemisphere arranged on the end face of the column, the radius of the hemisphere is R, and the end of the hemisphere is arranged with a plane with a radius of 0.35-0.55R;

[0015] A supporting ring is arranged on the inner side wall of the cylinder body, and a sealing plate which is pressed against the bottom side of the mounting plate is connected to the upper surface of the supporting ring through a spring, and a push rod is arranged on the upper surface of the sealing plate; a "cross" is arranged on the inner side wall of the external threaded joint; when the cylinder body is assembled onto the internal threaded boss and the supporting protrusion presses against the upper surface of the mounting plate, the top end of the push rod presses against the bottom side of the "cross", and at this time the sealing plate is separated from the bottom side of the mounting plate.

[0016] Furthermore, a plurality of through holes are provided on the bottom side surface of the first water trough, and a water flow impact plate is connected to the inner bottom side surface of the first water trough through an elastic telescopic sleeve rod B, and a blocking column is provided on the bottom side surface of the water flow impact plate for abutting against the through holes on the inner bottom side surface of the first water trough; a guide rod is provided on the bottom side surface of the second water trough, and a floating block is movably provided on the guide rod.

[0017] Furthermore, a pair of fixing rods for fixing the sealing cover plate to the opening are cooperatedly arranged on the outer side wall of the shell, and the fixing rods are provided with adjusting bolts A whose ends abut against the outer side surface of the sealing cover plate; two groups of fixing blocks for installing the fixing rods are arranged on the outer side wall of the shell, and the fixing blocks are provided with through holes for the fixing rods to pass through, and the fixing blocks are provided with adjusting bolts B for driving the fixing rods to move toward the side close to the shell; a handle is arranged on the sealing cover plate; and the base also includes a base for installing the shell, the base includes a rectangular frame, a baffle is arranged on the rectangular frame, a locking bolt C whose ends abut against the shell is arranged on the baffle, and a supporting leg is arranged on the bottom side surface of the rectangular frame.

[0018] Furthermore, it also includes a filter cartridge, wherein the bottom side of the filter cartridge is provided with an insertion rod, and the peripheral side wall is provided with filter holes; when in use, the water pump is placed in the filter cartridge;

[0019] A U-shaped connection seat is arranged on the top of the filter cartridge, an L-shaped rod is connected to the U-shaped connection seat, the end of the L-shaped rod is movably sleeved and connected to a square tube, and the bottom end of the square tube is connected to a bottom plate; a locking bolt D and a locking bolt E are respectively arranged on the square tube and the U-shaped connection seat.

[0020] The present invention has the following beneficial effects:

[0021] The present invention arranges a filtering treatment device, a water pump and a return irrigation device, and utilizes a water pump to lift sewage to the filtering treatment device at a high position. After being treated by the filtering treatment device, the sewage is discharged into the return irrigation device, and then flows back to the farmland through the return irrigation device, thereby achieving sewage treatment. The return irrigation device is utilized to achieve contact between water and air when the return irrigation device discharges water, thereby increasing the oxygen content in the water body flowing back to the farmland.

[0022] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for describing the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0024] Figure 1 This is a schematic diagram of the structure of the drainage pollution treatment device of the present invention;

[0025] Figure 2 It is a schematic diagram of the structure of the return irrigation device of the present invention;

[0026] Figure 3 This is a schematic diagram of the structure of the filtering treatment device of the present invention;

[0027] Figure 4 for Figure 3 A partial enlarged view of the middle part;

[0028] Figure 5 for Figure 3 A top view of

[0029] Figure 6 It is a schematic diagram of the cross-sectional structure of the first water tank of the present invention;

[0030] Figure 7 It is a schematic cross-sectional structural diagram of the second water tank of the present invention;

[0031] Figure 8 It is a cross-sectional view of the filtering treatment device of the present invention;

[0032] Fig. 9It is a schematic diagram of the structure of the fixing member of the present invention;

[0033] Fig.10 This is a schematic diagram of the structure of the support plate of the present invention from a top view;

[0034] Fig.11 This is a schematic diagram of the structure of the support plate of the present invention when viewed from the bottom;

[0035] Fig.12 It is a schematic diagram of the cylinder structure of the present invention;

[0036] Fig.13 This is a schematic diagram of the structure of the adsorption tube A of the present invention;

[0037] Fig.14 for Fig.13 The main view;

[0038] Fig.15 for Fig.14 A partial enlarged view of point B in the middle;

[0039] Fig.16 It is a schematic diagram of the filter cartridge structure of the present invention. DETAILED DESCRIPTION

[0040] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0041] In the description of the present invention, it should be understood that the terms "opening", "upper", "lower", "thickness", "top", "middle", "length", "inside", "all around" and the like indicating orientation or positional relationship are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the components or elements 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.

[0042] See also Figure 1 As shown, the present invention is a water pollution treatment device, including a water pump 6. When in use, the water pump 6 is used to pump sewage in the farmland into the filtering treatment device 1. After being treated by the filtering treatment device 1, the impurities, heavy metal ions, etc. in the sewage are removed, and then the sewage flows into the return irrigation device 5 and is discharged; in the present invention, the return irrigation device 5 is arranged at a higher position of the farmland, and the filtering treatment device 1 is arranged at the farthest position from the return irrigation device 5 in the farmland; by using the setting of the return irrigation device 5, the oxygen content in the water body is increased when the treated water is returned to the farmland.

[0043] At the same time, in some possible implementations, a controller, a solar panel and a battery are also provided, the controller is connected to the water pump 6, the time module, and a power detection module for detecting the remaining power of the battery; and the controller is connected to the server and obtains weather information from the server, the weather information includes light intensity and time information, and passes the light intensity and time information.

[0044] When in use, the collected weather information is used to obtain the power generation W1 of the solar panel, and the remaining battery power W2 is detected by the power detection module, so as to obtain the total remaining battery power W0 at night in the future. The remaining power W0 and the power of the water pump 6 are used to calculate the operating time of the water pump 6 that the battery can provide for 8 hours. When it is judged that the night time is 12 hours, that is, starting at 6 pm, the water pump is controlled to start at 9 pm and last until 7 am the next day.

[0045] It is understandable that if Figure 2 The backflow irrigation device 5 includes a plurality of backflow irrigation units connected in series in sequence, and the backflow irrigation unit includes a transverse pipe 50. Pipe joints A51 are respectively arranged at both ends of the transverse pipe 50. A plurality of drainage holes are arranged on the bottom side of the transverse pipe 50 along the length direction. The transverse pipe 50 passes through a fixing sleeve 52. A locking bolt A521 is arranged on the fixing sleeve 52. The fixing sleeve 52 is connected to the end of a pillar 53. When in use, the transverse pipe 50 is at a certain distance from the ground, so that the water discharged from the drainage hole can contact with the air, thereby increasing the oxygen content in the water body flowing back to the farmland.

[0046] In order to better treat agricultural sewage, the present invention, when used, successively sets a gravel filling layer 141, a gravel and fine sand mixed filling layer 142, a fine sand filling layer 143 and an activated carbon filling layer 144 to filter out rotten grass roots and the like that may be contained in the water body, and then uses a macroporous strongly acidic cation exchange resin, a macroporous weakly acidic cation exchange resin, a molecular sieve and selenium source particles to treat the sewage, thereby removing heavy metal ions in the sewage and adjusting the pH value of the acidic sewage; and the setting of selenium source particles is used to increase the selenium content in the water body.

[0047] In the above, under the action of macroporous strongly acidic cation exchange resin and macroporous weakly acidic cation exchange resin, some heavy metal ions in sewage are removed; under the action of molecular sieve, heavy metal ions in sewage are removed, and the pH value of acidic sewage is adjusted; at this time, the treated sewage flowing through the selenium source particles is weakly acidic, which facilitates the dissolution of selenium in the selenium source particles by the treated sewage. And the cation exchange resin can be reused after acid washing and regeneration after adsorption saturation. In the present invention, by controlling the packing density of selenium source particles, cation exchange resin and molecular sieve, it can meet the requirements of sewage treatment effect and water inlet and outlet speed. The selenium source particles are natural selenium ore.

[0048] Specifically, Figure 3-8 The filtering treatment device 1 of the present invention is a cylindrical shell, which is provided with four porous partitions 14 in sequence from bottom to top and is divided into five chambers by the four porous partitions 14. The gravel filling layer 141, the gravel and fine sand mixed filling layer 142, the fine sand filling layer 143 and the activated carbon filling layer 144 are filled in four of the above five chambers in sequence from bottom to top. The bottom of the shell is provided with a pipe joint B connected to the water pump 6, and the top inner wall of the shell is provided with a convex ring 160, and the convex ring 160 is sealed and installed with a mounting plate 16; four internal thread bosses 42 are provided on the upper surface of the mounting plate 16, and a cylinder 4 connected to the internal thread boss 42 is provided on the bottom side of the mounting plate 16, and a pipe joint D440 is provided at the bottom of the cylinder 4; the four internal thread bosses 42 are provided with an adsorption cylinder A1 a, an adsorption cylinder B1 b, an adsorption cylinder C1 c and an adsorption cylinder D1 d, and the macroporous strongly acidic cation exchange resin, the macroporous weakly acidic cation exchange resin, the molecular sieve and the selenium source particles are respectively filled in the adsorption cylinder A1a, the adsorption cylinder B1b, the adsorption cylinder C1c and the adsorption cylinder D1d, and the adsorption cylinder A1a, the adsorption cylinder B1b, the adsorption cylinder C1c and the adsorption cylinder D1d are connected in series; when in use, the water flow is filtered through the sand and gravel filling layer 141, the sand and gravel mixed filling layer 142, the fine sand filling layer 143 and the activated carbon filling layer 144; the water flow then flows through the adsorption cylinder A1a, the adsorption cylinder B1b, the adsorption cylinder C1c and the adsorption cylinder D1d in turn, and is discharged from the top of the adsorption cylinder D1d.

[0049] Of course, in order to facilitate the water to automatically flow into and out of the return irrigation device 5, as shown in FIG. Figure 6 In the present invention, an L-shaped drain pipe 11 with a drain port facing downward is provided on one side of the top of the shell; a first water tank 12 is provided directly below the L-shaped drain pipe 11, and a second water tank 13 is provided directly below the first water tank 12. A pipe joint C131 is provided at the bottom of the second water tank 13, and the pipe joint C131 is connected to the return irrigation device 5 through a hose, and the bottom side surface of the second water tank 13 is higher than the top of the horizontal pipe 50; after the sewage is filtered and treated by the filtering treatment device 1, it flows into the first water tank 12 and the second water tank 13 in sequence and then is discharged to increase the oxygen content in the water body.

[0050] In the present invention, Figure 4An opening is provided on the side wall below any porous partition plate 14, and a sealing cover plate 15 is provided at the opening. A pair of fixing rods 18 for fixing the sealing cover plate 15 to the opening are provided on the outer wall of the shell. The fixing rods 18 are provided with adjusting bolts A181 whose ends abut against the outer side of the sealing cover plate 15. Two sets of fixing blocks 17 for installing the fixing rods 18 are provided on the outer wall of the shell. The fixing blocks 17 are provided with through holes 171 for the fixing rods 18 to pass through, and the fixing blocks 17 are provided with adjusting bolts A181 for driving the fixing rods 18 to move toward the side close to the shell. The sealing cover plate 15 is provided with a handle 151; the setting of the fixing rod 18 facilitates the disassembly and installation of the sealing cover plate 15, and further facilitates the control of the replacement of the filler filled in the chamber during use; when the fixing rod 18 is used, the sealing cover plate 15 is first placed in the opening, and then the fixing rod 18 is controlled to be inserted into the fixing block 17, and the adjusting bolt B172 is controlled to drive the fixing rod 18 to move toward the side close to the shell, and then the end of the adjusting bolt A181 is used to abut against the outer side of the sealing cover plate 15 to fix the sealing cover plate 15 at the opening.

[0051] In this application, if Figure 10-11 , the mounting plate 16 is provided with three tube bodies 41 penetrating the mounting plate 16, the tops of the adsorption cylinders A1a, B1b and C1c are all connected to the top of a tube body 41, and the pipe joints D440 corresponding to the adsorption cylinders A1a, B1b and C1c are connected to the bottom end of a tube body 41 through a pipeline; the bottom side surface of the mounting plate 16 is provided with a sealing ring 161 that cooperates with the convex ring 160, and the top of the shell is provided with a pair of fixing members 2 for fixing the mounting plate 16 on the convex ring 160; Fig. 9 The fixing member 2 includes a U-shaped frame 20, and both ends of the U-shaped frame 20 are respectively provided with outward L-shaped flanges 21, and the L-shaped flanges 21 are threadedly connected with locking bolts B22; the top of the shell is provided with a positioning opening 1e for positioning the L-shaped flange 21; the bottom side of the U-shaped frame 20 is connected with a clamping plate 24 through a plurality of elastic telescopic sleeves A23; in the above, during installation, the mounting plate 16 is first placed on the convex ring 160, and then the two fixing members 2 are respectively installed on the top of the shell, the L-shaped flange 21 is controlled to be inserted into the positioning opening 1e, and the locking bolts B22 on the L-shaped flange 21 are rotated to lock it.

[0052] It can be understood that in the present application, the adsorption cylinder A1a, the adsorption cylinder B1b, the adsorption cylinder C1c and the adsorption cylinder D1d have the same structure; Figure 12-15The adsorption cylinder A1 a comprises a cylinder body 190, a top cover 191 is arranged on the top of the cylinder body 190, and a pipe joint E1911 connected to the pipe body 41 is arranged on the top cover 191; an external thread joint 192 threadedly connected to the internal thread boss 42 is arranged on the bottom of the cylinder body 190; a support ring 43 is arranged on the inner side wall of the cylinder body 4, and a sealing plate 45 abutting against the bottom side of the mounting plate 16 is connected to the upper surface of the support ring 43 through a spring 44, and a push rod 46 is arranged on the upper surface of the sealing plate 45; a "cross" 1921 is arranged on the inner side wall of the external thread joint 192; When the cylinder body 190 is assembled onto the internal threaded boss 42 and the supporting protrusion 193 abuts against the upper surface of the mounting plate 16, the top end of the push rod 46 abuts against the bottom side of the "cross" 1921. At this time, the sealing plate 45 is separated from the bottom side of the mounting plate 16. Based on the setting of the "cross" 1921 and the sealing plate 45, when the cylinder body 190 is assembled onto the mounting plate 16, the "cross" 1921 abuts against the top end of the push rod 46, and the sealing plate 45 is separated from the bottom side of the mounting plate 16, thereby facilitating the connection between the interior of the cylinder body 190 and the cylinder 4.

[0053] At least three supporting protrusions 193 are arranged on the bottom side surface of the barrel body 190 located on the side of the external threaded joint 192; the supporting protrusion 193 includes a column 1931 and a hemisphere 1933 arranged on the end surface of the column 1931, the radius of the hemisphere 1933 is R, and the end of the hemisphere 1933 is provided with a plane 1932 with a radius of 0.45R; the arrangement of the supporting protrusion 193 is utilized to ensure that the barrel body 190 is installed, and at the same time, the supporting protrusion 193 is made of rubber material, which has a deformable type, thereby facilitating the control of the rotation of the barrel body 190. When the supporting protrusion 193 contacts the upper surface of the mounting plate 16, the supporting protrusion 193 can be deformed and move along the upper surface of the mounting plate 16.

[0054] In order to conveniently increase the oxygen content of the water after the water is discharged through the filtering treatment device 1, the present invention is provided with a plurality of through holes 123 on the bottom side surface of the first water tank 12, and the inner bottom side surface of the first water tank 12 is connected to a water flow impact plate 121 through an elastic telescopic sleeve B. The bottom side surface of the water flow impact plate 121 is provided with a blocking column 122 that abuts against the inner bottom side surface of the first water tank 12 at the through hole 123. By utilizing the setting of the elastic telescopic sleeve B, when the water flow discharged through the L-shaped drain pipe 11 impacts the water flow impact plate 121, the water flow impact plate 121 shakes up and down, thereby controlling the through hole 123 to be in a wireless cycle state of closed-conducting-closed-conducting, so as to facilitate the control of the water flow to be intermittently discontinuous when being discharged through the through hole 123, and then utilizing the water flow in this discontinuous state to increase the contact area and time with the air, thereby increasing the dissolved oxygen content.

[0055] In the present invention, a guide rod 133 is provided on the bottom side of the second water tank 13, and a float 132 is movably provided on the guide rod 133. When the liquid level rises, the float 132 rises and separates from the bottom side of the second water tank 13. At this time, the water in the second water tank 13 quickly flows into the pipe joint C131, and flows into the return irrigation device 5 through the pipe joint C131. By using this float 132, it is convenient to control the water in the second water tank 13 to intermittently flow into the return irrigation device 5, and discharge it through the return irrigation device 5 for irrigation.

[0056] In the present invention, in order to facilitate the installation of the filtering treatment device 1 in the field, a base for installing the shell is also provided. The base includes a rectangular frame 10, a fence 101 is arranged on the rectangular frame 10, a locking bolt C102 with an end against the shell is arranged on the fence 101, and a supporting leg 103 is arranged on the bottom side of the rectangular frame 10.

[0057] Of course, it is understandable that the water level in the farmland is actually shallow. Therefore, in practice, if the water pump 6 is placed directly in the farmland, the water level in the field may not be able to submerge the water pump 6. Therefore, in actual installation, it is necessary to dig a pit in the farmland and then place the water pump 6 in the pit. Of course, in order to prevent the soil in the newly dug pit from entering the water pump 6 along with the water flow, the present invention places a filter cartridge 60 in the pit, and the bottom side of the filter cartridge 60 is provided with an insertion rod 61 and the surrounding side wall is provided with a filter hole 62. When in use, the water pump 6 is placed in the filter cartridge 60.

[0058] Of course, in order to avoid the filter cartridge 60 from tipping over due to soil subsidence, etc. Fig.16 In the present invention, three U-shaped connecting seats 63 are arranged on the top of the filter cartridge 60, and an L-shaped rod 64 is connected to the U-shaped connecting seat 63. The end of the L-shaped rod 64 is movably connected to a square tube 65, and the bottom end of the square tube 65 is connected to a bottom plate 66; a locking bolt D and a locking bolt E are respectively arranged on the square tube 65 and the U-shaped connecting seat 63. The support structure composed of the U-shaped connecting seat 63, the L-shaped rod 64, the square tube 65 and the bottom plate 66 is used to prevent the filter cartridge 60 from tipping over during use, and the overall assembly and disassembly is convenient.

[0059] In the present invention, due to the influence of plant photosynthesis and respiration, the oxygen content of the water body is higher at night. Therefore, in practice, the farmland drainage pollution treatment device can be started at night, and the farmland drainage pollution treatment device can be used to realize the internal circulation of sewage in the farmland, thereby removing heavy metal ions from the sewage and increasing the oxygen content of the water body to avoid plant root rot.

[0060] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0061] The preferred embodiments of the present invention disclosed above are only used to help illustrate the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A water pollution treatment device, characterized in that: It comprises a filtering treatment device (1) and a water pump (6) for pumping sewage in farmland into the filtering treatment device (1), and the filtering treatment device (1) is also connected to a return irrigation device (5); The backflow irrigation device (5) comprises a plurality of backflow irrigation units connected in sequence, the backflow irrigation unit comprising a transverse pipe (50), both ends of the transverse pipe (50) are respectively provided with pipe joints A (51), and the bottom side surface of the transverse pipe (50) is provided with a plurality of drainage holes along the length direction; The filtering treatment device (1) is a cylindrical housing, which is provided with four porous partitions (14) in sequence from bottom to top and is divided into five compartments by the four porous partitions (14); the four compartments located at the bottom are filled with a sand and gravel filling layer (141), a sand and gravel mixed filling layer (142), a fine sand filling layer (143) and an activated carbon filling layer (144) in sequence from bottom to top; The bottom of the shell is provided with a pipe joint B connected to the water pump (6), and one side of the top of the shell is penetrated by an L-shaped drainage pipe (11) with a drainage outlet facing downwards; A first water tank (12) is arranged directly below the L-shaped drainage pipe (11), and a second water tank (13) is arranged directly below the first water tank (12); It also includes a controller, which is connected to the water pump (6) and the time module; An opening is provided on the side wall below any of the porous partitions (14), and a sealing cover plate (15) is provided at the opening; a pipe joint C (131) is provided at the bottom of the second water tank (13), the pipe joint C (131) is connected to the return irrigation device (5) through a hose, and the bottom side surface of the second water tank (13) is higher than the top of the horizontal pipe (50); a convex ring (160) is provided on the top inner side wall of the shell, and a mounting plate (16) is sealingly mounted on the convex ring (160); The upper surface of the mounting plate (16) is provided with four internally threaded bosses (42); the bottom side of the mounting plate (16) is provided with a cylinder (4) connected to the internally threaded bosses (42); the bottom of the cylinder (4) is connected to a pipe joint D (440); The four internal thread bosses (42) are cooperatively provided with an adsorption cylinder A (1a), an adsorption cylinder B (1b), an adsorption cylinder C (1c) and an adsorption cylinder D (1d); the adsorption cylinder A (1a), the adsorption cylinder B (1b), the adsorption cylinder C (1c) and the adsorption cylinder D (1d) are connected in series; It also includes a filter cartridge (60), wherein the bottom side of the filter cartridge (60) is provided with an insertion rod (61), and the peripheral side wall is provided with a filter hole (62); when in use, the water pump (6) is placed in the filter cartridge (60); A U-shaped connecting seat (63) is arranged at the top of the filter cartridge (60), an L-shaped rod (64) is connected to the U-shaped connecting seat (63), the end of the L-shaped rod (64) is movably connected to a square tube (65), and the bottom end of the square tube (65) is connected to a bottom plate (66); a locking bolt D and a locking bolt E are respectively arranged on the square tube (65) and the U-shaped connecting seat (63).

2. A water pollution treatment device according to claim 1, characterized in that: It also includes solar panels and batteries; The controller is connected to the server and obtains weather information from the server, wherein the weather information includes light intensity and time information, and transmits the light intensity and time information; The controller is connected with a power detection module for detecting the remaining power of the battery.

3. A water pollution treatment device according to claim 1, characterized in that: It also comprises a fixing sleeve (52) for the horizontal pipe (50) to pass through, a locking bolt A (521) being arranged on the fixing sleeve (52), and the fixing sleeve (52) being connected to the end of a pillar; the return irrigation device (5) is arranged at a higher position in the farmland, and the filtering treatment device (1) is arranged at a position in the farmland that is farthest from the return irrigation device (5).

4. A water pollution treatment device according to any one of claims 1 to 3, characterized in that , further comprising three tubes (41) penetrating the mounting plate (16), the tops of the adsorption cylinder A (1a), the adsorption cylinder B (1b) and the adsorption cylinder C (1c) are all connected to the top of a tube (41), and the pipe joints D (440) corresponding to the adsorption cylinder A (1a), the adsorption cylinder B (1b) and the adsorption cylinder C (1c) are connected to the bottom of a tube (41) through a pipeline; The bottom side of the mounting plate (16) is provided with a sealing ring (161) that cooperates with the convex ring (160); When in use, the water flows after being filtered through the sand and gravel filling layer (141), the sand and gravel fine sand mixed filling layer (142), the fine sand filling layer (143) and the activated carbon filling layer (144); the water flows through the adsorption cylinder A (1a), the adsorption cylinder B (1b), the adsorption cylinder C (1c) and the adsorption cylinder D (1d) in sequence, and is discharged from the top of the adsorption cylinder D (1d).

5. A water pollution treatment device according to claim 4, characterized in that: A pair of fixing members (2) for fixing the mounting plate (16) on the convex ring (160) are arranged at the top of the housing; the fixing member (2) comprises a U-shaped frame (20), and both ends of the U-shaped frame (20) are respectively provided with outwardly facing L-shaped flanges (21), and the L-shaped flanges (21) are threadedly connected with locking bolts B (22); a positioning opening (1e) for positioning the L-shaped flange (21) is arranged at the top of the housing; The bottom side surface of the U-shaped frame (20) is connected to a pressing plate (24) via a plurality of elastic telescopic sleeve rods A (23).

6. A water pollution treatment device according to claim 4, characterized in that: The adsorption cylinder A (1a), adsorption cylinder B (1b), adsorption cylinder C (1c) and adsorption cylinder D (1d) have the same structure; The adsorption cylinder A (1a), adsorption cylinder B (1b), adsorption cylinder C (1c) and adsorption cylinder D (1d) are filled with macroporous strong acid cation exchange resin, macroporous weak acid cation exchange resin, molecular sieve and selenium source particles in sequence, and the selenium source particles are natural selenium ore; The adsorption cylinder A (1a) comprises a cylinder body (190), a top cover (191) is arranged on the top of the cylinder body (190), and a pipe joint E (1911) connected to the pipe body (41) is arranged on the top cover (191); the bottom of the cylinder body (190) is connected to the outer thread joint (192) threadedly connected to the inner thread boss (42); At least three supporting protrusions (193) are arranged on the bottom side of the barrel body (190) located on the peripheral side of the external threaded joint (192); The support protrusion (193) includes a column (1931) and a hemispherical body (1933) arranged on the end surface of the column (1931), the radius of the hemispherical body (1933) is R, and the end of the hemispherical body (1933) is provided with a plane (1932) with a radius of 0.35-0.55R; A support ring (43) is provided on the inner side wall of the cylinder (4); a sealing plate (45) abutting against the bottom side of the mounting plate (16) is connected to the upper surface of the support ring (43) via a spring (44); and a push rod (46) is provided on the upper surface of the sealing plate (45); A cross (1921) is provided on the inner side wall of the external threaded joint (192); When the barrel body (190) is assembled onto the internal thread boss (42) and the support protrusion (193) abuts against the upper surface of the mounting plate (16), the top end of the push rod (46) abuts against the bottom side of the "cross" (1921), and the sealing plate (45) is separated from the bottom side of the mounting plate (16).

7. A water pollution treatment device according to claim 4, characterized in that: The bottom side surface of the first water trough (12) is provided with a plurality of through holes (123); the inner bottom side surface of the first water trough (12) is connected to a water flow impact plate (121) via an elastic telescopic sleeve rod B; the bottom side surface of the water flow impact plate (121) is provided with a blocking column (122) which abuts against the inner bottom side surface of the first water trough (12) at the through hole (123); A guide rod (133) is arranged on the bottom side of the second water tank (13), and a floating block (132) is movably arranged on the guide rod (133) and penetrates through it.

8. A water pollution treatment device according to claim 4, characterized in that: A pair of fixing rods (18) for fixing the sealing cover plate (15) to the opening are provided on the outer side wall of the housing, and the fixing rods (18) are provided with adjusting bolts A (181) whose ends abut against the outer side surface of the sealing cover plate (15); Two sets of fixing blocks (17) for mounting fixing rods (18) are arranged on the outer wall of the shell, the fixing blocks (17) are provided with through holes (171) for the fixing rods (18) to pass through, and the fixing blocks (17) are provided with adjusting bolts B (172) for driving the fixing rods (18) to move toward a side close to the shell; a handle (151) is arranged on the sealing cover plate (15); The invention also comprises a base for mounting the shell, the base comprising a rectangular frame (10), a baffle (101) being arranged on the rectangular frame (10), a locking bolt C (102) being arranged on the baffle (101) with an end portion resting on the shell, and a supporting leg (103) being arranged on the bottom side of the rectangular frame (10).

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