Photocatalysis sewage treatment system based on lens condensation

Abstract

The utility model relates to the technical field of sewage purification, and discloses a photocatalytic sewage treatment system based on lens condensation, which comprises a treatment pond, a light source module, a light source module and a light source module, the carrier is arranged in the accommodating cavity, and a photocatalyst is immobilized on the carrier; the convex lens is arranged above the treatment pond, and the projection area of the convex lens in the gravity direction is larger than that of the treatment pond in the gravity direction; and the illuminating lamp is movably arranged above the convex lens and is provided with a first position right above the convex lens and a second position for giving way to the convex lens irradiated by sunlight. According to the photocatalytic sewage treatment system based on lens condensation provided by the utility model, the convex lens is arranged above the treatment tank so as to gather light rays in a larger range relative to the top opening of the treatment tank onto the carrier, so that the light illumination intensity is improved, and the photocatalytic and sewage treatment efficiency is further improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to sewage purification technical field, concretely relates to a light catalytic sewage treatment system based on lens light collection. BACKGROUND

[0002] With the rapid development of industrialization and urbanization, water pollution problem is increasingly serious, and the organic matters and related byproducts in industrial wastewater such as printing and dyeing wastewater, pharmaceutical wastewater or petrochemical wastewater can react and transform through various environmental media in water body, which can easily cause harmful influence on human body and natural environment. When treating the above wastewater, the traditional membrane separation method, adsorption method and biological method have limitations such as high operation cost, long treatment period and insufficient treatment, and the photocatalytic technology as a new advanced oxidation technology has been widely concerned in the field of sewage treatment due to its high efficiency, environmental protection and no secondary pollution. However, the traditional open sewage treatment tank has a constant opening size at the top of the sewage treatment tank, and the range of received light is limited, resulting in low utilization rate of light and low photocatalytic efficiency. SUMMARY

[0003] Therefore, the utility model provides a light catalytic sewage treatment system based on lens light collection to solve the problem that the traditional open sewage treatment tank has a constant opening size at the top of the sewage treatment tank, and the range of received light is limited, resulting in low utilization rate of light.

[0004] The utility model provides a light catalytic sewage treatment system based on lens light collection, which comprises:

[0005] The treatment tank has a containing cavity with an upward opening, and the containing cavity is used for containing sewage.

[0006] The carrier is arranged in the containing cavity, and the carrier is loaded with a photocatalyst, which is suitable for degrading pollutants in the sewage under the action of light.

[0007] The convex lens is arranged above the treatment tank, and the projection area of the convex lens along the gravity direction is greater than the projection area of the treatment tank along the gravity direction, and the convex lens is suitable for concentrating light on the carrier.

[0008] The illuminating lamp is movably arranged above the convex lens and has a first position directly above the convex lens and a second position away from the convex lens to form a gap for sunlight to irradiate the convex lens.

[0009] Advantages: the convex lens is arranged above the treatment tank to concentrate light in a larger range relative to the opening at the top of the treatment tank on the carrier, thereby increasing the light intensity and improving the photocatalytic and sewage treatment efficiency.

[0010] In an optional implementation, a support frame is arranged below the convex lens, and the support frame abuts against the lower surface of the convex lens to support the convex lens.

[0011] In an optional implementation, two limiting structures are arranged on the support frame, and the convex lens is clamped between the two limiting structures.

[0012] Beneficial effects: The convex lens is clamped between the two limiting structures on the support frame, thereby improving the stability of the convex lens mounted on the support frame.

[0013] In an optional implementation, the support frame comprises at least two spaced apart horizontal rods, and the limiting structure comprises a sleeve that is slidingly sleeved on the horizontal rod, and an adjusting bolt is arranged on the sleeve, and the adjusting bolt is adapted to lock the relative position of the sleeve and the horizontal rod.

[0014] Beneficial effects: By slidingly arranging the sleeve on the horizontal rod and locking the relative position of the sleeve and the horizontal rod by tightening the adjusting bolt, the spacing distance between the two limiting structures is adjusted to adapt to convex lenses of different sizes, thereby improving the applicability of the photocatalytic wastewater treatment system based on lens condensation.

[0015] In an optional implementation, the limiting structure further comprises a clamping plate fixedly connected with the sleeve, and the clamping plate is adapted to abut against the side surface of the convex lens, and the side surface of the clamping plate towards the convex lens comprises an arc surface.

[0016] Beneficial effects: The surface of the clamping plate in contact with the convex lens is configured as an arc surface, so that the clamping plate better contacts the arc side surface of the convex lens.

[0017] In an optional implementation, a flexible pad is arranged on the side surface of the clamping plate towards the convex lens.

[0018] Beneficial effects: By arranging a flexible pad on the clamping plate, rigid abutment of the clamping plate with the convex lens is avoided, which is conducive to protecting the convex lens from being damaged.

[0019] In an optional implementation, a lamp post is arranged below the illuminating lamp, and the illuminating lamp is rotationally connected with the lamp post.

[0020] Beneficial effects: The illuminating lamp is rotationally arranged on the lamp post to switch between the first position and the second position, and when the light is insufficient at night or during the day, the illuminating lamp is rotated to directly above the convex lens, and the illuminating lamp provides light to the photocatalyst through the convex lens; when the light is sufficient during the day, the illuminating lamp is rotated aside to avoid blocking the sunlight towards the convex lens.

[0021] In an alternative embodiment, the carrier is arranged in the upper region of the accommodating cavity, and a water circulating device is further arranged in the accommodating cavity, a water inlet of the water circulating device is arranged at the bottom of the accommodating cavity, and a water outlet of the water circulating device is arranged above the carrier.

[0022] Beneficial effects: The carrier loaded with the photocatalyst is arranged in the upper region of the accommodating cavity to better receive light, thereby improving the photocatalytic efficiency, and the water circulating device is arranged to lift the sewage in the lower region to the carrier for treatment, thereby realizing the cyclic degradation of small batches of sewage.

[0023] In an alternative embodiment, a solar panel assembly is arranged outside the treatment pool and electrically connected to the water circulating device.

[0024] Beneficial effects: The solar panel assembly is arranged to convert solar energy into electric energy and supply power to the water circulating device, and no greenhouse gas is emitted during power generation, which is helpful for environmental protection.

[0025] In an alternative embodiment, a storage battery is further arranged outside the treatment pool, the storage battery is electrically connected to the solar panel assembly and electrically connected to the water circulating device and / or the illuminating lamp.

[0026] Beneficial effects: The storage battery is arranged to store electric energy to supply power to the water circulating device and / or the illuminating lamp instead of the solar panel assembly at night or during insufficient sunlight. BRIEF DESCRIPTION OF DRAWINGS

[0027] In order to more clearly illustrate the specific embodiments of the present application or the technical solutions in the prior art, the following will briefly introduce the drawings needed to be used in the specific embodiments or prior art description. Obviously, the drawings described below are some embodiments of the present application, and those skilled in the art can obtain other drawings according to these drawings without creative labor.

[0028] Figure 1 It is a front view of a photocatalytic sewage treatment system based on lens light condensation according to an embodiment of the present application.

[0029] Figure 2 It is a front view of a photocatalytic sewage treatment system based on lens light condensation according to an embodiment of the present application. Figure 1 It is a structure diagram of the illuminating lamp in the second position. Figure 1 ;

[0030] Figure 3 It is a structure diagram of the illuminating lamp in the second position. Figure 2

[0031] Figure 4 It is a structure diagram of the illuminating lamp in the second position. Figure 1 Figure 2 ​​​

[0032] Figure 5 for Figure 1 The diagram shown is a structural schematic of the lighting fixture in the first position.

[0033] Figure 6 for Figure 1 The diagram shown depicts a treatment tank with one sidewall omitted.

[0034] Figure 7 for Figure 1 The treatment pool shown is a front view with one side wall hidden.

[0035] Explanation of reference numerals in the attached figures:

[0036] 1. Treatment tank; 10. Support frame; 101. Horizontal bar; 102. Vertical bar; 11. Limiting structure; 111. Sleeve; 112. Adjusting bolt; 113. Clamping plate; 12. Stabilizing frame; 2. Carrier; 3. Water circulation device; 301. Inlet; 302. Outlet; 4. Baffle structure; 401. First baffle; 402. Second baffle; 403. First connecting port; 51. Battery; 52. Lighting lamp; 53. Lamp post; 6. Solar panel; 701. First chamber; 702. Second chamber; 8. Guide plate; 9. Convex lens; 13. Second connecting port. Detailed Implementation

[0037] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0038] The following is combined with Figures 1 to 7 The following describes embodiments of the present invention.

[0039] According to an embodiment of the present invention, a photocatalytic wastewater treatment system based on lens focusing is provided, comprising:

[0040] Treatment tank 1 has an upward-facing receiving cavity for holding sewage;

[0041] Carrier 2 is disposed in the accommodating cavity, and a photocatalyst is fixedly supported on carrier 2. The photocatalyst is suitable for degrading pollutants in wastewater under light irradiation.

[0042] A convex lens 9 is arranged above the treatment tank 1, the projection area of the convex lens 9 along the gravity direction is greater than the projection area of the treatment tank 1 along the gravity direction, and the convex lens 9 is suitable for concentrating light on the carrier 2;

[0043] A lighting lamp 52 is movably arranged above the convex lens 9 and has a first position above the convex lens 9 and a second position away from the convex lens 9 to form a gap for the sunlight to irradiate the convex lens 9.

[0044] The lens light-concentrating-based photocatalytic wastewater treatment system provided by the embodiment improves the light intensity by arranging the convex lens 9 above the treatment tank 1 to concentrate light in a larger range relative to the opening of the top of the treatment tank 1 on the carrier 2, thereby improving the photocatalytic efficiency and the wastewater treatment efficiency.

[0045] Specifically, the convex lens 9 is a rotary body, the light range of the lighting lamp 52 is greater than the opening size of the accommodating cavity and is suitable for the size of the convex lens 9, and the convex lens 9 is used to refract and concentrate light in a larger range relative to the opening of the treatment tank 1 on the carrier 2, thereby improving the light intensity and further improving the photocatalytic efficiency.

[0046] When the lighting lamp 52 is in the second position, the projection of the lighting lamp 52 along the gravity direction does not intersect with the projection of the convex lens 9 along the gravity direction and is located at the backlight side of the treatment tank 1. In the case of sufficient sunlight during the day, the lighting lamp 52 is in the second position, and the sunlight is refracted and concentrated by the convex lens 9 and irradiates on the carrier 2; in the case of insufficient sunlight during the day or at night, the lighting lamp 52 is in the first position, and the light emitted by the lighting lamp 52 is refracted and concentrated by the convex lens 9 and irradiates on the carrier 2. Further, a concave lens is arranged at the opening of the treatment tank 1 to refract the light refracted and concentrated by the convex lens 9 into a relatively parallel state, which is conducive to improving the uniformity of the light irradiation on the carrier 2.

[0047] In one embodiment, in combination with Figures 1 to 5 As shown in the figure, a support frame 10 is arranged below the convex lens 9 and abuts against the lower surface of the convex lens 9 to support the convex lens 9.

[0048] Specifically, the support frame 10 is fixedly arranged below the convex lens 9 to support the convex lens 9.

[0049] In one embodiment, in combination with Figures 2 to 5 As shown in the figure, two limiting structures 11 are arranged on the support frame 10, and the convex lens 9 is clamped between the two limiting structures 11.

[0050] The lens light-concentrating-based photocatalytic wastewater treatment system provided by the embodiment clamps the convex lens 9 on the support frame 10 by the two limiting structures 11, thereby improving the stability of the installation of the convex lens 9 on the support frame 10.

[0051] In one embodiment, in combination with Figure 2 and Figure 3 As shown in the drawings, the support frame 10 comprises at least two spaced apart horizontal bars 101, the limiting structure 11 comprises a sleeve 111 which is sleeved on the horizontal bar 101, and the sleeve 111 is provided with an adjusting bolt 112 which is adapted to lock the relative position of the sleeve 111 and the horizontal bar 101.

[0052] The lens light condensation based photocatalytic wastewater treatment system provided by the embodiment adjusts the interval distance between the two limiting structures 11 by sliding the sleeve 111 on the horizontal bar 101 and locking the relative position of the sleeve 111 and the horizontal bar 101 by tightening the adjusting bolt 112, so as to adapt to different sizes of convex lenses 9, thereby improving the applicability of the lens light condensation based photocatalytic wastewater treatment system.

[0053] Specifically, the plurality of horizontal bars 101 are arranged side by side in the horizontal direction, the sleeve 111 is provided with a threaded hole, and the adjusting bolt 112 is arranged in the threaded hole. The adjusting bolt 112 is rotated to be out of contact with the horizontal bar 101, so as to adjust the position of the limiting structure 11 on the horizontal bar 101. After adjustment, the adjusting bolt 112 is rotated in the opposite direction to abut against the horizontal bar 101, so as to lock the relative position of the limiting structure 11 and the horizontal bar 101.

[0054] The support frame 10 further comprises a plurality of vertical bars 102, the top of the vertical bar 102 is fixedly connected with the horizontal bar 101, so as to support the horizontal bar 101. Further, the vertical bar 102 is configured as an extension bar, so as to adjust the interval distance between the convex lens 9 and the treatment tank 1 in the height direction.

[0055] In one embodiment, in combination with Figure 2 and Figure 3 As shown in the drawings, the limiting structure 11 further comprises a clamping plate 113 which is fixedly connected with the sleeve 111, the clamping plate 113 is adapted to abut against the side surface of the convex lens 9, and the side surface of the clamping plate 113 towards the convex lens 9 comprises an arc surface.

[0056] The lens light condensation based photocatalytic wastewater treatment system provided by the embodiment configures the surface of the clamping plate 113 which contacts the convex lens 9 as an arc surface, so as to better contact the arc side surface of the convex lens 9.

[0057] Specifically, the side surface of the clamping plate 113 towards the convex lens 9 comprises an arc surface, a U-shaped surface or a V-shaped surface, etc.

[0058] In one embodiment, the side surface of the clamping plate 113 towards the convex lens 9 is provided with a flexible pad.

[0059] The lens light condensation based photocatalytic wastewater treatment system provided by the embodiment avoids the rigid abutment of the clamping plate 113 and the convex lens 9 by arranging the flexible pad on the clamping plate 113, and is beneficial to protecting the convex lens 9 from being damaged.

[0060] Specifically, the flexible pad includes a rubber pad, a silica gel pad or the like. Taking the rubber pad as an example, the clamping plate 113 abuts against the convex lens 9 through the rubber pad, and the friction force can be further improved, which is beneficial to improving the clamping stability of the convex lens 9 by the limiting structure 11.

[0061] In one embodiment, as shown in Figure 2 , Figure 4 and Figure 5 , the illuminating lamp 52 is rotationally connected with the lamp post 53 arranged below the illuminating lamp 52.

[0062] The lens light condensation based photocatalytic wastewater treatment system provided by the embodiment rotationally arranges the illuminating lamp 52 on the lamp post 53, so as to switch the illuminating lamp 52 between the first position and the second position. When the light is insufficient at night or in the daytime, the illuminating lamp 52 is rotated to be directly above the convex lens 9, and the illuminating lamp 52 provides light for the photocatalyst through the convex lens 9. When the light is sufficient in the daytime, the illuminating lamp 52 is rotated aside to avoid blocking the sunlight from the convex lens 9.

[0063] Specifically, the lamp post 53 is fixedly arranged below the illuminating lamp 52 and serves to support the illuminating lamp 52. As a feasible implementation form, the lamp post 53 extends along the gravity direction, the illuminating lamp 52 is rotationally arranged at the top of the lamp post 53, and the rotation plane of the illuminating lamp 52 is parallel to the horizontal direction. The stabilizing frame 12 is further arranged below the illuminating lamp 52, and the lower end surface of the illuminating lamp 52 slidably abuts against the stabilizing frame 12, so as to ensure the stability of the illuminating lamp 52 during rotation.

[0064] In one embodiment, as shown in Figure 2 and Figure 7 , the carrier 2 is arranged at the upper region of the accommodating cavity, and the water circulating device 3 is further arranged inside the accommodating cavity. The water inlet 301 of the water circulating device 3 is arranged at the bottom of the accommodating cavity, and the water outlet 302 of the water circulating device 3 is arranged above the carrier 2.

[0065] The lens light condensation based photocatalytic wastewater treatment system provided by the embodiment arranges the carrier 2 on which the photocatalyst is fixed at the upper region of the accommodating cavity, so as to better receive light, thereby improving the photocatalytic efficiency. The water circulating device 3 is arranged to lift the wastewater at the lower region to the carrier 2 for treatment, thereby realizing the cyclic degradation of small batches of wastewater.

[0066] Specifically, the sewage liquid surface in the accommodating cavity is located in the upper region of the accommodating cavity, the carrier 2 is arranged close to the sewage liquid surface and below the sewage liquid surface, and the spacing distance between the carrier 2 and the sewage liquid surface is 1mm-10mm. Since light is difficult to irradiate to the bottom of the sewage, the carrier 2 is arranged close to the sewage liquid surface, so that the photocatalyst can effectively utilize light. The water circulating device 3 is fixedly connected with one of the inner side walls of the accommodating cavity, and is used to lift the sewage at the bottom of the accommodating cavity to above the carrier 2. The water circulating device 3 comprises a water inlet 301, a water outlet 302, a water pump and a conduit, the water pump is communicated with the water inlet 301 through the conduit, so as to suck the sewage at the bottom of the accommodating cavity, the water pump is communicated with the water outlet 302, and the sewage at the bottom of the accommodating cavity is sprayed to the middle region of the sewage liquid surface through the water outlet 302, so that the photocatalyst on the carrier 2 can cyclically degrade the small batch of sewage.

[0067] In combination with Figure 6 and Figure 7 As shown in the drawings, the lower region of the accommodating cavity is provided with a baffle structure 4, the baffle structure 4 divides the accommodating cavity into a first chamber 701 and a second chamber 702 which are distributed along the gravity direction, the middle region of the baffle structure 4 is provided with a first communication port 403, the sewage in the first chamber 701 enters the second chamber 702 through the first communication port 403, and the water inlet 301 is located in the second chamber 702. The second chamber 702 is also provided with a flow guide plate 8 to form a flow guide channel in the second chamber 702, one end of the flow guide channel is communicated with the first communication port 403, and the other end is communicated with the water inlet 301, so that after the sewage enters the second chamber 702 through the first communication port 403, the sewage flows into the water inlet 301 along the flow guide channel.

[0068] The inner side wall provided with the water circulating device 3 is defined as a first inner side wall, and the inner side wall opposite to the first inner side wall is defined as a second inner side wall. Since the first communication port 403 is located in the middle region of the baffle structure 4, and the flow guide channel is formed in the second chamber 702, the sewage close to the first inner side wall in the first chamber 701 and the sewage close to the second inner side wall can be roughly synchronized to be sucked into the water inlet 301, so that the difference in the circulation efficiency of the sewage close to the first inner side wall and the sewage close to the second inner side wall is avoided, and the overall circulation effect of the sewage in the accommodating cavity is improved.

[0069] In combination with Figure 6 and Figure 7 As shown in the drawings, one end of the flow guide plate 8 is fixedly connected with one end of the first baffle 401 close to the first communication port 403, the other end of the flow guide plate 8 is arranged close to the second inner side wall and forms a second communication port 13 with the second inner side wall, and along the direction of the first inner side wall towards the second inner side wall, the side wall of the flow guide plate 8 is sealingly connected with the inner side wall of the accommodating cavity, so as to form a bent flow guide channel in the second chamber 702, so as to avoid the low circulation efficiency of the sewage close to the second inner side wall in the second chamber 702.

[0070] As a feasible implementation form, the partition structure 4 comprises a first partition 401 and a second partition 402 arranged at intervals, the first partition 401 is located on the side of the second partition 402 facing the water circulating device 3, and the first partition 401 is provided with a clearance opening corresponding to the water circulating device 3 to form a clearance for the water circulating device 3 to extend from the first chamber 701 to the second chamber 702. The first partition 401 and the second partition 402 are respectively sealedly connected with the inner side wall of the accommodating cavity, and the gap between the first partition 401 and the second partition 402 is configured as a first communication opening 403, so that the sewage in the first chamber 701 enters the second chamber 702 through the first communication opening 403. The first partition 401 and the second partition 402 can be horizontally arranged or obliquely arranged. When obliquely arranged, the side edge close to the first communication opening 403 is the lowest point of the upper surface of the first partition 401 or the second partition 402.

[0071] In one embodiment, in combination with Figure 1 As shown, a solar panel assembly is arranged outside the treatment tank 1, and the solar panel assembly is electrically connected with the water circulating device 3.

[0072] The lens light condensation-based photocatalytic sewage treatment system provided in the embodiment converts solar energy into electric energy to supply power to the water circulating device 3, and does not emit greenhouse gases in the power generation process, which is helpful for environmental protection.

[0073] Specifically, the solar panel assembly comprises a plurality of fixedly arranged supports, and one solar panel 6 is arranged on each support, and the plurality of solar panels 6 are equidistantly and uniformly arranged.

[0074] In one embodiment, in combination with Figures 1 to 5 As shown, a storage battery 51 is further arranged outside the treatment tank 1, the storage battery 51 is electrically connected with the solar panel assembly, and is electrically connected with the water circulating device 3 and / or a lighting lamp 52.

[0075] The lens light condensation-based photocatalytic sewage treatment system provided in the embodiment stores electric energy by arranging the storage battery 51, so as to supply power to the water circulating device 3 and / or the lighting lamp 52 instead of the solar panel assembly at night or in insufficient sunlight during the day.

[0076] Specifically, the electric quantity generated by the solar panel assembly during the day is partly directly supplied to the water circulating device 3 for use, and the other part is stored in the storage battery 51. At night or in insufficient sunlight during the day, the lighting lamp 52 can be moved to the first position, and the storage battery 51 is used to supply electric quantity to the water circulating device 3 and / or the lighting lamp 52.

[0077] Obviously, the above embodiments are only examples for clearly illustrating, and are not limitation to the embodiments. Although the embodiments of the present application are described in conjunction with the drawings, various modifications and changes can be made by those skilled in the art without departing from the spirit and scope of the present application, and such modifications and changes fall within the scope of the present application.

Claims

1. A photocatalytic wastewater treatment system based on lens focusing, characterized in that, include: Treatment tank (1) has an upward-facing accommodating cavity for holding sewage; A carrier (2) is disposed in the cavity, and a photocatalyst is fixed on the carrier (2). The photocatalyst is suitable for degrading pollutants in the wastewater under light irradiation. A convex lens (9) is disposed above the processing pool (1). The projected area of ​​the convex lens (9) along the direction of gravity is greater than the projected area of ​​the processing pool (1) along the direction of gravity. The convex lens (9) is adapted to focus light onto the carrier (2). The lighting lamp (52) is movably disposed above the convex lens (9) and has a first position located directly above the convex lens (9) and a second position moved away from directly above the convex lens (9) to make way for sunlight to illuminate the convex lens (9).

2. The photocatalytic wastewater treatment system based on lens focusing according to claim 1, characterized in that, A support frame (10) is provided below the convex lens (9), and the support frame (10) abuts against the lower surface of the convex lens (9) to support the convex lens (9).

3. The photocatalytic wastewater treatment system based on lens focusing according to claim 2, characterized in that, The support frame (10) is provided with two limiting structures (11), and the convex lens (9) is clamped between the two limiting structures (11).

4. The photocatalytic wastewater treatment system based on lens focusing according to claim 3, characterized in that, The support frame (10) includes at least two spaced crossbars (101), and the limiting structure (11) includes a sleeve (111). The sleeve (111) is slidably sleeved on the crossbars (101), and an adjusting bolt (112) is provided on the sleeve (111). The adjusting bolt (112) is adapted to lock the relative position of the sleeve (111) and the crossbars (101).

5. The photocatalytic wastewater treatment system based on lens focusing according to claim 4, characterized in that, The limiting structure (11) also includes a clamping plate (113) fixedly connected to the sleeve (111), and the side of the clamping plate (113) facing the convex lens (9) includes an arc-shaped surface.

6. The photocatalytic wastewater treatment system based on lens focusing according to claim 5, characterized in that, The clamping plate (113) has a flexible pad on the side facing the convex lens (9).

7. The photocatalytic wastewater treatment system based on lens focusing according to claim 1, characterized in that, A lamp post (53) is provided below the lighting lamp (52), and the lighting lamp (52) is rotatably connected to the lamp post (53).

8. The photocatalytic wastewater treatment system based on lens focusing according to any one of claims 1-7, characterized in that, The carrier (2) is disposed in the upper region of the accommodating cavity. A water circulation device (3) is also disposed inside the accommodating cavity. The inlet (301) of the water circulation device (3) is disposed at the bottom of the accommodating cavity, and the outlet (302) of the water circulation device (3) is disposed above the carrier (2).

9. The photocatalytic wastewater treatment system based on lens focusing according to claim 8, characterized in that, The treatment tank (1) is equipped with a solar panel assembly on its exterior, and the solar panel assembly is electrically connected to the water circulation device (3).

10. The photocatalytic wastewater treatment system based on lens focusing according to claim 9, characterized in that, The treatment tank (1) is also equipped with a storage battery (51) on its exterior. The storage battery (51) is electrically connected to the solar panel assembly and to the water circulation device (3) and / or the lighting lamp (52).

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