Floating island type sewage treatment and water purification device

Abstract

The utility model provides a floating island type sewage treatment and water purification device, which is applied to sewage treatment and purification and comprises at least one group of tank bodies, the group of tank bodies comprises at least one tank body, two opposite side walls of the tank bodies are respectively connected with a water inlet connecting pipeline and a water outlet connecting pipeline, and the water inlet connecting pipeline and the water outlet connecting pipeline are respectively communicated with the tank bodies. The water inlet connecting pipeline is used for being connected with a rain sewage river pipeline, the water outlet connecting pipeline is used for being communicated with a to-be-treated and purified water area or the position above the water surface of the to-be-purified water area, and the tank body is filled with filler for purifying sewage; the plurality of floating plates are detachably connected, and the floating plates are arranged outside each group of tank bodies in a surrounding manner; the multiple fungus beds are detachably arranged at the bottom of the floating plate, and the fungus beds are filled with dephosphorization filler. The water body purification device is simple in structure, convenient to disassemble and assemble and wide in application range, and the tank body can be assembled according to actual conditions.

Description

TECHNICAL FIELD

[0001] The embodiment of the present disclosure relates to the sewage treatment technical field, and particularly relates to a floating island type sewage treatment and water body purification device. BACKGROUND

[0002] With the continuous development and progress of society, people's pursuit of life quality and life quality is continuously strengthened. The improvement of human settlements is the urgent requirement of the broad masses, and water treatment is an important link in the improvement of human settlements. Sewage treatment, black and odorous water body purification, river restoration and other needs are increasingly evident.

[0003] Traditional sewage treatment uses sewage pipe network to collect generated sewage, and the collected sewage is uniformly treated by terminal treatment facilities and uniformly discharged. Due to the different geological and topographical conditions and village infrastructure in different places, pipe network construction is difficult and investment cost is high, so this method cannot be widely used. With the continuous adjustment and optimization of policies, the demand for ecological, environmental and social benefits of sewage treatment by taking various measures suitable for local conditions is becoming increasingly strong. At present, some areas have cancelled the laying of sewage pipe networks, and have realized the unified collection of sewage by using existing drainage ditches, and have realized the treatment of sewage by constructing centralized sewage treatment facilities at the end, and have discharged the tail water after treatment into nearby ponds, ditches and rivers to provide landscape water and irrigation water, thereby realizing the low-cost and resource utilization of sewage treatment. Although this method reduces the investment cost, it is also affected by factors such as land shortage and no place to place sewage equipment.

[0004] In the early stage, garbage filling, sewage discharge and ecological destruction in some areas led to the formation of black and odorous water bodies or the decline of water quality in some ponds and rivers. At present, the water body restoration and treatment of ponds and rivers mostly adopts measures such as dredging, repairing slopes, planting green plants and water body oxygenation to realize water body restoration and purification. Due to the problems of difficulty in early dredging, high engineering investment cost and other problems, this method is also difficult to be widely used.

[0005] It is very important to design a set of equipment that saves land and takes into account sewage treatment and water purification to meet the current needs. Content of the utility model

[0006] The purpose of the embodiment of the present disclosure is to provide a floating island type sewage treatment and water body purification device, thereby solving the foregoing problems existing in the prior art.

[0007] The embodiment of the present disclosure provides a floating island type sewage treatment and water body purification device, which is applied to sewage treatment and purification, and the device comprises:

[0008] At least one set of tank bodies, a set of tank bodies including at least one tank body, the tank body has two opposite side walls connected with water inlet connecting pipe and water outlet connecting pipe respectively, the water inlet connecting pipe is used for connecting rain and sewage river pipe, the water outlet connecting pipe is used for connecting water area to be treated and purified or above water surface of water area to be treated and purified, the tank body is filled with filler for purifying sewage;

[0009] A plurality of detachable floating plates, the floating plates are arranged around the tank bodies;

[0010] A plurality of bacterial beds, the bacterial beds are detachably arranged at the bottom of the floating plates, and the bacterial beds are filled with dephosphorization filler.

[0011] Exemplarily, the device further comprises a connecting table, the connecting table is provided with a clamping interface in the central region, and hooks are arranged at opposite edges;

[0012] The tank body is provided with a clamping table around the tank opening in the height direction, the tank body is provided with the clamping interface, and the clamping table is clamped in the clamping interface.

[0013] Exemplarily, the floating plate is a cuboid, the floating plate is provided with a clamping groove at each of four corners of the side surface, clamping protrusions are arranged at opposite sides of the clamping groove, and the device further comprises a rhombic connecting piece; one side of the clamping groove of the floating plate is clamped with the rhombic connecting piece, and the other side of the rhombic connecting piece is connected with the clamping groove of another floating plate.

[0014] Exemplarily, the device further comprises a connecting frame, a plurality of hooks are arranged on a first surface of the connecting frame, and a plurality of the bacterial beds are hung on a second surface of the connecting frame.

[0015] Exemplarily, the bottom surface of the floating plate is provided with a limiting groove penetrating through the length direction of the floating plate, and a plurality of first lifting eyes are arranged on the bottom surface of the limiting groove; a mounting groove in communication with the limiting groove is arranged on one side of each first lifting eye along the width direction of the floating plate.

[0016] After the floating plates are spliced, the limiting grooves are in communication with each other to mount the connecting frame, and the hooks are connected with corresponding first lifting eyes.

[0017] Exemplarily, a plurality of second lifting eyes are arranged on the edge of the bottom surface of the floating plate, and when the device comprises the connecting table, the second lifting eyes are connected with the hooks of the connecting table.

[0018] Exemplarily, the device further comprises:

[0019] An electric control unit arranged on the upper surface of the floating plate;

[0020] A solar cell panel arranged on the floating plate and electrically connected with the electric control unit.

[0021] Exemplarily, the bacterial bed is provided with a fence structure around.

[0022] Exemplarily, the tank body is provided with two water inlet connecting pipes, one of which is used to connect the rain sewage river pipe, and the other is used to connect the water area to be treated and purified.

[0023] Exemplarily, when a group of tank bodies includes multiple tank bodies, the multiple tank bodies are detachably connected in series through connecting pipes, the first tank body in the sewage treatment direction has a water inlet connecting pipe, the last tank body has a water outlet connecting pipe, and the intermediate tank bodies are connected in series through corresponding connecting pipes; when the device has multiple groups of tank bodies, the groups of tank bodies are connected in parallel or side by side.

[0024] Exemplarily, the filler for purifying sewage filled in the tank body includes any one or more of high fiber bundle filler, volcanic rock and fly ash block.

[0025] The beneficial effects of the embodiments of the present disclosure are:

[0026] Compared with the existing centralized sewage treatment facility, the water body purification device of the embodiments of the present disclosure has the advantages of simple structure, convenient disassembly and assembly, wide application range, and can be assembled at will according to actual needs. BRIEF DESCRIPTION OF DRAWINGS

[0027] Figure 1 is a structure schematic diagram of the assembled floating island type sewage treatment and water body purification device provided by the embodiments of the present disclosure;

[0028] Figure 2 is a structure schematic diagram of the connecting table of the floating island type sewage treatment and water body purification device provided by the embodiments of the present disclosure;

[0029] Figure 3 is a structure schematic diagram of the assembly of the connecting table and the tank body of the floating island type sewage treatment and water body purification device provided by the embodiments of the present disclosure;

[0030] Figure 4 is a side structure schematic diagram of the assembly of the connecting table and the tank body of the floating island type sewage treatment and water body purification device provided by the embodiments of the present disclosure;

[0031] Figure 5 is a structure schematic diagram of the floating plate of the floating island type sewage treatment and water body purification device provided by the embodiments of the present disclosure;

[0032] Figure 6 is a structure schematic diagram of the rhombus connecting piece of the floating island type sewage treatment and water body purification device provided by the embodiments of the present disclosure;

[0033] Figure 7 is a structure schematic diagram of the connecting frame of the floating island type sewage treatment and water body purification device provided by the embodiments of the present disclosure;

[0034] Figure 8 is a structural schematic diagram of the bottom surface of a floating plate of a floating island type sewage treatment and water purification device provided by an embodiment of the present disclosure;

[0035] Figure 9 is a structural schematic diagram of the floating plate splicing of a floating island type sewage treatment and water purification device provided by an embodiment of the present disclosure;

[0036] Figure 10 is a structural schematic diagram of the bottom of the assembled floating island type sewage treatment and water purification device provided by an embodiment of the present disclosure;

[0037] Figure 11 is a process flow diagram of the floating island type sewage treatment and water purification device using the embodiment of the present disclosure.

[0038] In the figure:

[0039] 100, tank body; 110, clamping table; 200, floating plate; 210, limiting groove; 211, first lifting ring; 220, mounting groove; 230, second lifting ring; 240, clamping groove; 250, clamping convex; 300, bacteria bed; 400, connecting table; 410, clamping port; 420, lifting hook; 500, rhombus connecting piece; 600, connecting frame; 610, hook; 700, electric control system; 800, solar cell panel; 900, water area to be treated and purified; 910, rain and sewage river pipeline. DETAILED DESCRIPTION

[0040] In order to make the purpose, technical solution and advantages of the embodiments of the present disclosure more clear and explicit, the embodiments of the present disclosure are further described in detail below in combination with the drawings. It should be understood that the specific embodiments described herein are only used to explain the embodiments of the present disclosure, and are not used to limit the embodiments of the present disclosure.

[0041] As shown in Figure 1 , the present disclosure proposes a floating island type sewage treatment and water purification device applied to sewage treatment and purification, which is arranged in the water area to be treated and purified, and comprises: at least one group of tank bodies 100, one group of tank bodies 100 comprising at least one tank body 100, opposite side walls of the tank body 100 being respectively connected with water inlet connecting pipelines and water outlet connecting pipelines, the water inlet connecting pipelines and the water outlet connecting pipelines being respectively communicated with the inside of the tank body 100, the water inlet connecting pipeline inlet being used for connecting the rain and sewage river pipeline 910, the water outlet connecting pipeline outlet being used for communicating with the water area to be treated and purified 900 or above the water surface of the water area to be treated and purified, the tank body 100 being filled with fillers for purifying sewage; a plurality of detachable floating plates 200, the floating plates 200 being arranged around the groups of tank bodies 100; a plurality of bacteria beds 300, which are detachably arranged at the bottom of the floating plates 200, the bacteria beds 300 being filled with dephosphorization fillers inside.

[0042] In the device of the embodiment of the present disclosure, the side wall of the tank body can be provided with an inlet and an outlet, and the inlet and the outlet are respectively connected to an inlet connecting pipeline and an outlet connecting pipeline. Two inlets can be provided, and the tank body is provided with two inlet connecting pipelines, one of which is used to connect a rainwater and sewage river pipeline, and the other inlet connecting pipeline is connected to a water area to be treated and purified. The sewage in the water area to be treated and purified can be pumped into the tank body.

[0043] The inlet connecting pipeline and the outlet connecting pipeline can be respectively arranged on the opposite side walls of the tank body, or can be arranged on any two side walls according to actual conditions. The outlet of the outlet connecting pipeline is used to communicate with the water area to be treated and purified or is arranged above the water surface of the water area to be treated and purified. When the outlet of the outlet connecting pipeline communicates with the water area to be treated and purified, a one-way valve or a water pump connected to the outlet connecting pipeline can be arranged to ensure that the water flows out of the tank body. When the outlet of the outlet connecting pipeline is arranged above the water surface of the water area to be treated and purified, a water pump can be arranged at the outlet of the outlet connecting pipeline to spray water by lifting, thereby forming a fountain landscape. In the device of the embodiment of the present disclosure, a plurality of tank bodies can be connected in series by connecting pipelines to form a group of tank bodies. An inlet connecting pipeline is arranged on the first tank body along the flow direction of the sewage, and an outlet connecting pipeline is arranged on the last tank body. The intermediate tank bodies are connected in series by corresponding connecting pipelines, which can be arranged according to actual conditions. After being connected in series to form a group of tank bodies, the groups of tank bodies can be connected in parallel according to actual conditions. The tank bodies can be respectively filled with different fillers for purifying sewage according to actual conditions. The internal structures of the tank bodies can also be provided with different chambers according to actual conditions. The chambers are filled with corresponding fillers for purifying sewage or aeration units, etc. to achieve corresponding purification functions, which will not be described here.

[0044] The device is arranged in the water body, and corresponding floating plates are arranged around each group of tank bodies to provide horizontal support force and up-down buoyancy for the tank bodies, thereby achieving balance and stability of the device arranged in the water body. The number of tank bodies and the connection mode of the tank bodies can be arranged according to actual needs in the device of the embodiment of the present disclosure. A multifunctional bacteria bed is hung at the bottom of the floating plate, and a dephosphorization filler is arranged in the bacteria bed, thereby effectively adsorbing and degrading phosphorus elements in the water body and achieving water purification. The bacteria bed also plays a role of counterweight to increase the weight of the water purification device. The floating island type sewage treatment and water purification device of the embodiment of the present disclosure can be arranged in a pond, a river or various water areas to be treated and purified. The sewage can be discharged into the water area to be treated and purified through the rainwater and sewage river pipeline.

[0045] There are two water inlet modes of the device, i.e. Figure 1As shown, this device can collect and treat sewage flowing into the overflow outlet and inlet pipe through corresponding pipes, thus achieving sewage treatment. The inlet pipe is like a stormwater and sewage river pipe. Secondly, the device can use its own pump to lift surrounding water into the tank of this device for purification, thus achieving water purification.

[0046] This device can be assembled by connecting one or more tanks in series or in parallel. Compared with existing centralized sewage treatment facilities, the water purification device of this disclosure has a simple structure, is easier to disassemble and assemble, and the disassembled components occupy little space and are easy to store. The assembled water purification device can be adjusted in size according to actual conditions and has a wide range of applications.

[0047] The filler material for the purified wastewater filling in the tank according to the embodiments of this disclosure includes any one or more of the following: high fiber bundle filler, volcanic rock, and fly ash blocks.

[0048] Traditional wastewater treatment equipment employs AO (Anaerobic / Anaerobic) processes and advanced treatment systems to effectively remove pollutants. This device is designed with a high-density polyethylene tank, inside which various high-fiber bundle packing materials or high-fiber packing materials, along with high-strength volcanic rock and fly ash blocks, are used as a bacterial bed to achieve wastewater treatment. Fly ash blocks refer to cut pieces of fly ash. High-fiber bundle packing materials include, for example, polypropylene (PP) fiber bundles. Elastic packing materials or rope packing materials can also be used instead of high-fiber bundle packing materials.

[0049] When the water purification device of this embodiment is installed in a water area 900 that is to be treated and purified and has a sewage discharge pipe, the inlet connection pipe of the tank can be connected to the sewage discharge pipe, such as a stormwater and sewage river pipe 910. Sewage is generally discharged directly into the water area to be treated and purified through the stormwater and sewage river pipe. Therefore, the water purification device of this embodiment can be directly installed in the water area to be treated and purified, and the tank is directly connected to the stormwater and sewage river pipe through the inlet connection pipe. The water purification device of this embodiment can also be equipped with a self-priming pump, which can periodically pump polluted water from the surrounding water body into the tank of the water purification device, and discharge it together after effective treatment by the equipment. Sewage is collected through existing pipes, and after the sewage is collected and purified by the equipment, the tailwater is discharged by self-retention or end-point water pump power spraying, which also provides a landscape effect.

[0050] like Figures 2 to 4 As shown, as a specific example of a water purification device, the device also includes a connecting platform 400, a locking interface 410 in the central area of ​​the connecting platform 400, and hooks 420 on the two opposite edges; a locking platform 110 is provided around the tank opening along the height direction of the tank body 100, the locking interface 410 passes through the bottom of the tank body 100, and the locking platform 110 is locked onto the first surface of the locking interface 410.

[0051] That is, the tank body is provided with an opening, and the opening is provided with a detachable cover body; the tank body is provided with a clamping table near the opening, the clamping table is formed by avoiding inwardly from the lower part of the tank body, the size of the lower part of the tank body is smaller than the size of the upper part of the tank body, and the lower part of the tank body penetrates the clamping port of the connecting table, so that the clamping table is clamped with the clamping port. The corresponding connecting pipeline can be arranged above the clamping table or below the clamping table.

[0052] As shown in Figure 5 , as a specific example of the floating plate, the floating plate 200 is a cuboid, the floating plate 200 is provided with a clamping groove 240 at four corners of the side surface respectively, and the opposite sides of the clamping groove 240 are provided with a clamping convex 250, the device further comprises: a rhombus connecting piece 500; the clamping groove 240 of the floating plate 200 clamps one side of the rhombus connecting piece 500, and the other side of the rhombus connecting piece 500 is connected to the clamping groove 240 of another floating plate 200.

[0053] The floating plate includes a cuboid with unequal length and width, and also includes a plurality of combinations such as a cube, and the shape of the floating plate can be set according to actual conditions. One side of each floating plate clamping groove clamps a rhombus connecting piece, and a plurality of floating plates are assembled together through the rhombus connecting piece. As shown in Figure 6 , the rhombus connecting piece can be a structure with thick edges and thin middle, which is convenient for disassembly and assembly.

[0054] As shown in Figure 7 , as a specific example of the water body purification device, the device further comprises: a connecting frame 600, the first surface of the connecting frame 600 is provided with a plurality of hooks 610, and a plurality of the fungus beds 300 are hung on the second surface of the connecting frame 600.

[0055] The connecting frame can be a quadrilateral frame, and in the embodiment of the present disclosure, the first surface is the upper surface, that is, the top surface, and the second surface is the lower surface, that is, the bottom surface; the hook is a hook with an opening, and the fungus bed can be directly welded to the second surface of the connecting frame.

[0056] As shown in Figure 8 and Figure 9 , as a specific example of the floating plate, the bottom surface of the floating plate 200 is provided with a limiting groove 210 penetrating the length direction thereof, and the bottom surface of the limiting groove 210 is provided with a plurality of first lifting rings 211; one side of each of the lifting rings is provided with a mounting groove 220 communicating with the limiting groove 210 along the width direction of the floating plate 200; after the floating plates 200 are spliced, the limiting grooves 210 are communicated with each other to mount the connecting frame 600, and the hooks 610 are connected with the corresponding first lifting rings 211.

[0057] The limiting groove in the embodiments of the present disclosure can be arranged at the central area of the bottom of the floating plate, or can be arranged according to the actual situation. The installation groove and the limiting groove can be adjusted according to the actual situation. The width of the limiting groove matches the width of the connecting frame, and the connecting frame further assembles the plurality of floating plates together. After the connecting frame is arranged in the limiting groove, the hook of the connecting frame can be hung on the first lifting ring through the installation groove, and the connecting frame is convenient to disassemble and assemble.

[0058] As shown in Figure 8 , as a specific example of the floating plate, the bottom edge of the floating plate 200 is provided with a plurality of second lifting rings 230. When the device includes a connecting table 400, the second lifting ring 230 is connected with the lifting hook 420 of the connecting table 400.

[0059] The lifting hook also has an opening, and the connection of the lifting hook and the second lifting ring realizes the connection of the tank body and the floating plate. The bottom of the water purification device group device of the embodiments of the present disclosure is as shown in Figure 10 .

[0060] As shown in Figure 1 , the device further includes an electric control system 700, the electric control system 700 includes an electric control unit, the electric control unit is arranged on the upper surface of the floating plate 200, and a solar cell panel 800 is arranged on the floating plate 200 and electrically connected with the electric control unit.

[0061] The device further includes a self-priming pump, a small fan and a monitoring facility, and the electric control unit is electrically connected with the self-priming pump, the small fan and the monitoring facility respectively. Some tank bodies are provided with an aeration unit, and the small fan mainly provides aeration for the internal aerobic process unit of the equipment to improve the dissolved oxygen of the water body. The electric control unit is connected with the self-priming pump and the solar cell panel, and the solar cell panel supplies power to the electric control unit.

[0062] As shown in Figure 9 , the periphery of the fungus bed is a fence structure. The water area to be treated and purified can also be provided with a fence, and the water purification device of the embodiments of the present disclosure is arranged in the fence. The top of the water purification device can also be provided with a low shed (not shown in the figure), and the solar cell panel is arranged on the upper surface of the low shed.

[0063] The water purification device of the embodiments of the present disclosure can realize efficient and stable operation of the equipment in low-temperature seasons by building a heat preservation shed on the top according to the climate characteristics and needs of the use site, and at the same time, the related solar power panels are equipped to realize the power supply of the related electrical facilities, thereby reducing the operating energy consumption and saving the cost.

[0064] The beneficial effects of the floating island type sewage treatment and water purification device of the embodiments of the present disclosure relative to the prior art are as follows:

[0065] 1. The device adopts a floating island type, which can be directly placed in the existing water area, avoiding equipment occupation and reducing investment cost;

[0066] 2. The device considers sewage treatment and water purification, has the characteristics of multi-purpose, wide use range and low investment cost;

[0067] 3. According to different climate characteristics, a warm shed device can be added to the top to realize the wide application of the device in cold and low temperature areas, and the application range is wide;

[0068] 4. The device adopts green and clean solar power generation and landscape fountain form, which saves energy consumption and reduces cost, and realizes multiple effects of sewage treatment by combining with surrounding landscape.

[0069] 5. The device can adopt single set, multiple set series and parallel connection form according to actual treatment demand, has wide application range and remarkable treatment effect.

[0070] A group of tank bodies of the embodiment of the present disclosure can be multiple, specifically 4, which are sequentially first tank body to fourth tank body, different fillers for purifying sewage are arranged in each tank body, and an aeration unit is arranged in some tank bodies to realize different purification processes; for example, the first tank body realizes anaerobic process, the second tank body realizes aerobic process, the third tank body realizes sedimentation tank, and the fourth tank body realizes artificial wetland, and the last tank body can be connected to the first tank body and the second tank body through a backflow pipeline; the whole device of the embodiment of the present disclosure is composed of multiple groups of tank bodies, and different tank bodies and the inside of the tank bodies are divided into different process units. Figure 11 As shown in the figure, the process flow realized by the floating island type sewage treatment and water purification device of the embodiment of the present disclosure is as follows:

[0071] (1) Water inlet, the device has two water inlet modes, one is that sewage enters the device by the current existing pipe network and ditch, and the other is that sewage is lifted or sucked into the device by power facilities, so as to realize water inlet of the device. One water inlet connecting pipeline of the first tank body is connected with the existing pipe network, such as rain and sewage river pipeline, and the other water inlet pipeline is connected with the water area to be treated and purified.

[0072] (2) Anaerobic process, after the sewage enters the device, it first enters the anaerobic process unit to grade and degrade large molecular organic matter in the sewage into small molecular organic matter, and improve the biodegradability of the sewage.

[0073] (3) Aerobic process, the sewage treated by the anaerobic process flows into the aerobic process, in which the organic matter in the sewage is removed efficiently, the ammonia nitrogen in the sewage is converted into nitrate nitrogen through nitrification, and a large amount of phosphorus elements in the sewage are absorbed by microorganisms, so as to realize the removal of pollutants in the sewage.

[0074] (4) Sedimentation tank, after pretreatment by anaerobic and aerobic processes, pollutants in the wastewater are effectively removed. To ensure stable operation of the later-stage constructed wetland advanced treatment system, the wastewater after front-end treatment flows into the sedimentation tank to effectively separate and precipitate impurities in the wastewater, ensuring that the SS of the wastewater entering the constructed wetland meets the requirements.

[0075] (5) Constructed wetland, the constructed wetland effectively removes organic matter, nitrogen, phosphorus and other pollutants in the wastewater through various fillers and different aquatic plants, and can be combined with the surrounding landscape to create a natural and beautiful ecological landscape.

[0076] (6) Backflow and effluent, a part of the tail water after deep purification by the constructed wetland is backflowed to the front-end process link through the backflow pipeline to reduce the pollutant load of the front-end process and improve the treatment efficiency. A part of the tail water is flowed into the pond by gravity or pump lifting and spraying to realize resource utilization of the tail water.

[0077] The above only describes the preferred embodiments of the present disclosure, and it should be noted that for those skilled in the art, without departing from the principles of the present disclosure, several improvements and refinements can be made, and these improvements and refinements should be considered within the scope of protection of the present disclosure.

Claims

1. A floating island-type wastewater treatment and water purification device, characterized in that, The device is applied to sewage treatment and purification, and comprises: at least one set of tanks (100), each set of tanks (100) comprising at least one tank (100), opposite sidewalls of the tank (100) being connected with a water inlet connecting pipeline and a water outlet connecting pipeline respectively, the water inlet connecting pipeline being used for connecting a rainwater and sewage river pipeline, the water outlet connecting pipeline being used for connecting a water area (900) to be treated and purified or above a water surface of the water area to be treated and purified, and the tank (100) being filled with a filler for purifying sewage; a plurality of detachable floating plates (200) surrounding the sets of tanks (100); a plurality of bacterial beds (300) detachably arranged at the bottom of the floating plates (200), and the bacterial beds (300) being filled with dephosphorization fillers.

2. The apparatus of claim 1, wherein, The device further comprises a connecting table (400), the connecting table (400) being provided with a clamping interface (410) in a central region and being provided with hooks (420) at opposite edges; the tank (100) being provided with a clamping table (110) in a circumferential direction near a tank opening in a height direction, the tank (100) being provided with the clamping interface (410) at the bottom, and the clamping table being clamped to the clamping interface (410).

3. The apparatus of claim 1, wherein, The floating plate (200) is a cuboid, the floating plate (200) being provided with clamping grooves (240) at four corners of a side surface respectively, opposite side surfaces of the clamping groove (240) being provided with clamping protrusions (250), and the device further comprises a rhombic connecting piece (500). The clamping groove (240) of the floating plate (200) clamps one side of the rhombic connecting piece (500), and the other side of the rhombic connecting piece (500) is connected to the clamping groove (240) of another floating plate (200).

4. The device of any one of claims 1 to 3, wherein, The device further comprises a connecting frame (600), a first surface of the connecting frame (600) being provided with a plurality of hooks (610), and a plurality of the bacterial beds (300) being hung on a second surface of the connecting frame (600).

5. The apparatus of claim 4, wherein, A bottom surface of the floating plate (200) is provided with a limiting groove (210) penetrating a length direction thereof, a bottom surface of the limiting groove (210) is provided with a plurality of first lifting eyes (211), and a mounting groove (220) in communication with the limiting groove (210) is arranged at one side of each first lifting eye along a width direction of the floating plate (200). After the floating plates (200) are spliced, the limiting grooves (210) are in communication with each other to mount the connecting frame (600), and the hooks (610) are connected with corresponding first lifting eyes (211).

6. The apparatus of claim 5, wherein, A bottom surface edge of the floating plate (200) is provided with a plurality of second lifting eyes (230), and when the device comprises the connecting table (400), the second lifting eyes (230) are connected with the hooks (420) of the connecting table (400).

7. The device of any one of claims 1 to 3, wherein, The device further comprises: an electric control unit arranged on an upper surface of the floating plate (200); a solar cell panel (800) arranged on the floating plate (200) and electrically connected with the electric control unit.

8. The device of any one of claims 1 to 3, wherein, The tank is provided with two water inlet connecting pipelines, one of which is used for connecting a rainwater and sewage river pipeline, and the other of which is used for connecting a water area to be treated and purified.

9. The device of any one of claims 1 to 3, wherein, When the set of tank bodies includes multiple tank bodies, the multiple tank bodies are detachably connected in series through connecting pipes, the first tank body in the sewage treatment direction has a water inlet connecting pipe, the last tank body has a water outlet connecting pipe, and the intermediate tank bodies are connected in series through corresponding connecting pipes; when the device has multiple sets of tank bodies (100), the sets of tank bodies (100) are connected in parallel or side by side.

10. The device of any one of claims 1 to 3, wherein, The filler for purifying sewage filled in the tank body (100) includes any one or more of high-fiber bundle filler, volcanic rock and fly ash block.

Images