Ecological wetland purification system

Abstract

The utility model relates to the technical field of water treatment, and one embodiment of the utility model provides an ecological wetland purification system which comprises a precipitation filter tank, an adjusting tank, an ecological filter tank, an ultraviolet disinfection box and a water storage tank which are communicated in sequence, the mixing assembly is arranged in the adjusting tank, the water inlet pipe is arranged on one side of the precipitation filtering tank, a flow slowing cover is arranged on one side in the precipitation filtering tank, a drainage cover is arranged on the outer side of the precipitation filtering tank, a water pump is arranged on the inner side of the precipitation filtering tank, the water outlet end of the water pump is located in the drainage cover, and the drainage cover is communicated with the adjusting tank. According to the technical scheme, the technical problems that the wetland system in the prior art has the defects that the hydraulic load is too low, the occupied area is relatively large, and the sewage cannot be purified by fully utilizing the degradation effect of a biological membrane attached to the surface of a matrix and the interception effect of a developed root system of a plant, so that the treatment efficiency is low are solved.

Description

TECHNICAL FIELD

[0001] Embodiments of the present disclosure relate to the technical field of water treatment, and in particular, to an ecological wetland purification system. BACKGROUND

[0002] Wetlands, known as the "kidney of the earth", are natural ecological processes with self-purification capabilities. Artificial wetlands are ecological treatment technologies that simulate natural wetlands and were developed in the 1970s. They are artificially excavated and filled with sand and stones, and aquatic plants are planted on them. Artificial wetlands mainly remove pollutants in wastewater through the combined action of physical, chemical and biological systems. In addition, the advantages of artificial wetlands mainly lie in the low professional level required for operating personnel, relatively low operation and maintenance costs, and strong load resistance, and artificial wetland purification technology has been widely promoted.

[0003] According to the water distribution mode of the system, artificial wetlands can be generally divided into surface flow wetlands, horizontal subsurface flow wetlands and vertical flow wetlands. The wastewater in the surface flow wetland flows on the surface of the artificial wetland bed, and the water flow is in a horizontal flow state, and the water level is relatively low. The disadvantage of this type of wetland system is that the hydraulic load is too low, the land occupation area is large, and the degradation effect of the biological membrane attached to the outer surface of the substrate and the interception effect of the developed root system of the plants cannot be fully utilized for purification treatment of the wastewater, resulting in low treatment efficiency. In addition, the sanitary conditions of this type of artificial wetland are poor, which seriously affects the surrounding environment. CONTENT OF THE UTILITY MODEL

[0004] To overcome the above-mentioned defects, embodiments of the present disclosure provide an ecological wetland purification system, which solves the technical problem that the hydraulic load of the wetland system in the related art is too low, the land occupation area is large, and the degradation effect of the biological membrane attached to the outer surface of the substrate and the interception effect of the developed root system of the plants cannot be fully utilized for purification treatment of the wastewater, resulting in low treatment efficiency.

[0005] According to an aspect, at least one embodiment of the present disclosure provides an ecological wetland purification system, comprising:

[0006] The ecological wetland purification system comprises a sedimentation and filtration tank, an adjusting tank, an ecological filter tank, an ultraviolet disinfection tank and a water storage tank, wherein the sedimentation and filtration tank, the adjusting tank, the ecological filter tank, the ultraviolet disinfection tank and the water storage tank are sequentially connected.

[0007] A sedimentation and drainage assembly is arranged in the sedimentation and filtration tank.

[0008] A mixing assembly is arranged in the adjusting tank.

[0009] A multi-stage filtration assembly is arranged in the ecological filter tank.

[0010] a flow disinfection assembly arranged in the ultraviolet disinfection box;

[0011] The sediment drainage assembly comprises a water inlet pipe arranged on one side of the sedimentation filter tank, a slow flow cover arranged on the inner side of the sedimentation filter tank, a water outlet cover arranged on the outer side of the sedimentation filter tank, a water pump arranged on the inner side of the sedimentation filter tank, a water outlet end of the water pump located in the water outlet cover, a filter arranged in the water outlet cover, and the water outlet cover being in communication with the adjusting tank.

[0012] As a further technical solution, the mixing assembly comprises a pair of stirring frames, the stirring frames are rotationally connected in the adjusting tank, the stirring frames are controlled to rotate by a motor, and a plurality of shunt pipes are arranged on the top of the adjusting tank.

[0013] As a further technical solution, a collecting pipe is connected between the shunt pipes, a plurality of injection holes are formed in the bottom of the shunt pipes and the collecting pipe, and a connecting pipe is arranged on the top of the collecting pipe.

[0014] As a further technical solution, the multi-stage filtering assembly comprises a plurality of inner partitions, the inner partitions are arranged in the ecological filter tank, the inner partitions are respectively filled with a first coarse sand layer, a biological activated sludge layer, a medium sandy layer and a second coarse sand layer, and a part between the inner partition located at the rightmost side and the inner wall of the ecological filter tank is a drainage layer.

[0015] As a further technical solution, the flow disinfection assembly comprises a rotating frame, the rotating frame is rotationally connected to the inner wall of the ultraviolet disinfection box, the rotating frame is controlled to rotate by a motor, and a plurality of push flow rods are arranged on the surface of the rotating frame.

[0016] As a further technical solution, a plurality of inner plates are fixed to the inner wall of the ultraviolet disinfection box, and ultraviolet disinfection lamps are mounted on the opposite surfaces of the inner plates.

[0017] As a further technical solution, the push flow rods are located around the periphery of the inner plates.

[0018] As a further technical solution, the first coarse sand layer and the second coarse sand layer both contain adsorptive functional materials.

[0019] As a further technical solution, the medium sandy layer contains biomass composite solid carbon source embedded beads.

[0020] As a further technical solution, the irradiation angle range of the ultraviolet disinfection lamps is fan-shaped.

[0021] The embodiments of the present disclosure have the following beneficial effects:

[0022] 1、The multi-stage filtering assembly is arranged in the disclosure, the traditional vertical flow artificial wetland structure is replaced by the ecological filter tank structure with a submerged layer through the interaction of the inner partition plate, the first coarse sand layer, the biological activated sludge layer, the medium sandy layer and the second coarse sand layer and other structures, and the sewage denitrification and phosphorus removal purification treatment efficiency is effectively improved.

[0023] 2、The flow disinfection assembly is arranged in the disclosure, disinfection is performed in the form of strengthening water flow through the interaction of the rotating frame, the flow pushing rod, the inner plate and the ultraviolet disinfection lamp, the water in the ultraviolet disinfection box can be fully irradiated, and good disinfection effect is achieved. BRIEF DESCRIPTION OF DRAWINGS

[0024] In order to more clearly illustrate the technical solutions in the embodiments of the disclosure, the drawings needed to be used in the description of the embodiments of the disclosure will be briefly introduced. Obviously, the drawings in the following description are only some example embodiments of the disclosure. Other drawings can be obtained according to the content of the example embodiments of the disclosure and the drawings by those skilled in the art without creating labor.

[0025] Figure 1 It is a structural schematic diagram of an embodiment of the disclosure;

[0026] Figure 2 It is a structural schematic diagram of the sedimentation filter tank part of the disclosure;

[0027] Figure 3 It is a structural schematic diagram of the adjusting tank part of the disclosure;

[0028] Figure 4 It is a structural schematic diagram of the ecological filter tank part of the disclosure;

[0029] Figure 5 It is a structural schematic diagram of the ultraviolet disinfection box part of the disclosure;

[0030] In the drawings: 1, sedimentation filter tank; 2, adjusting tank; 3, ecological filter tank; 4, ultraviolet disinfection box; 5, water storage tank; 6, sedimentation drainage assembly; 6-1, water inlet pipe; 6-2, slow flow cover; 6-3, drainage cover; 6-4, water pump; 6-5, filter; 7, mixing assembly; 7-1, stirring frame; 7-2, shunt pipeline; 7-3, concentration pipeline; 7-4, injection hole; 7-5, connecting pipeline; 8, multi-stage filtering assembly; 8-1, inner partition plate; 8-2, first coarse sand layer; 8-3, biological activated sludge layer; 8-4, medium sandy layer; 8-5, second coarse sand layer; 8-6, drainage layer; 9, flow disinfection assembly; 9-1, rotating frame; 9-2, flow pushing rod; 9-3, inner plate; 9-4, ultraviolet disinfection lamp. DETAILED DESCRIPTION

[0031] The present disclosure will be further described in conjunction with the drawings and embodiments. It can be understood that the specific embodiments described herein are merely intended for explaining the present disclosure, but not limiting the present disclosure.

[0032] For the simplicity of the drawings, only the parts related to the disclosure are shown in each drawing, which does not represent the actual structure of the product. In addition, for the simplicity of the drawings and easy understanding, in some drawings, only one of the parts with the same structure or function is shown, or only one of them is marked. In this document, "one" not only means "only one", but also means "more than one", and "several" includes "two" and "more than two".

[0033] In this document, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present disclosure can be understood according to the specific circumstances.

[0034] In the present disclosure, unless otherwise explicitly specified and limited, the "upper" or "lower" of the first feature to the second feature can include that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, the "upper", "above" and "on" of the first feature to the second feature includes that the first feature is directly above and obliquely above the second feature, or only means that the horizontal height of the first feature is higher than that of the second feature. The "below", "under" and "under" of the first feature to the second feature includes that the first feature is directly below and obliquely below the second feature, or only means that the horizontal height of the first feature is less than that of the second feature.

[0035] In the description of the present embodiment, the orientation or position relationship of the terms "upper", "lower", "left", "right" and the like is based on the orientation or position relationship shown in the drawings, which is only for the convenience of description and simplification of operation, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present disclosure.

[0036] In addition, in the description of the present application, the terms "first", "second" and the like are only used for differentiation and description, and cannot be understood as indicating or implying relative importance.

[0037] As Figures 1-5 shown, it shows an ecological wetland purification system in an embodiment of the present disclosure, which comprises:

[0038] The water purifier comprises a sedimentation and filtration tank 1, an adjusting tank 2, an ecological filter tank 3, an ultraviolet disinfection box 4 and a water storage tank 5, which are sequentially connected;

[0039] A sedimentation and drainage assembly 6 is arranged in the sedimentation and filtration tank 1.

[0040] A mixing assembly 7 is arranged in the adjusting tank 2.

[0041] A multi-stage filtration assembly 8 is arranged in the ecological filter tank 3.

[0042] A flow disinfection assembly 9 is arranged in the ultraviolet disinfection box 4.

[0043] The sedimentation and drainage assembly 6 comprises a water inlet pipe 6-1 arranged on one side of the sedimentation and filtration tank 1, a slow flow cover 6-2 arranged on the inside of the sedimentation and filtration tank 1, a drainage cover 6-3 arranged on the outside of the sedimentation and filtration tank 1, a water pump 6-4 arranged on the inside of the sedimentation and filtration tank 1, a water outlet end of the water pump 6-4 located in the drainage cover 6-3, a filter 6-5 arranged in the drainage cover 6-3, and the drainage cover 6-3 being connected with the adjusting tank 2.

[0044] In some examples, in order to achieve the effect of rapid sedimentation and filtration, the sedimentation and drainage assembly 6 is designed, the water inlet pipe 6-1 is arranged on one side of the sedimentation and filtration tank 1, the slow flow cover 6-2 is arranged inside, the sewage flows into the sedimentation and filtration tank 1 through the water inlet pipe 6-1 and the slow flow cover 6-2, the slow flow cover 6-2 can reduce the impact force when the sewage enters, so that the sewage in the sedimentation and filtration tank 1 maintains a relatively calm sedimentation state, the water pump 6-4 is arranged on the inside of the sedimentation and filtration tank 1, which is used for discharging the sedimented water, the filter 6-5 is arranged inside the slow flow cover 6-2, and the sewage flows into the adjusting tank 2 after being filtered through the filter 6-5.

[0045] As shown in Figures 1-5 The mixing assembly 7 comprises a pair of stirring frames 7-1, which are rotationally connected in the adjusting tank 2, and are controlled to rotate by a motor, a plurality of shunt pipes 7-2 are arranged on the top of the adjusting tank 2, a collecting pipe 7-3 is connected between the shunt pipes 7-2, a plurality of injection holes 7-4 are formed in the bottom of the shunt pipes 7-2 and the collecting pipe 7-3, and a connecting pipe 7-5 is arranged on the top of the collecting pipe 7-3.

[0046] In some examples, in order to achieve the effect of biological conditioning of the precipitated sewage, a mixing assembly 7 is designed, two stirring frames 7-1 are arranged in the inside of the conditioning tank 2, which can continuously stir the sewage, a plurality of shunt pipes 7-2 and a central pipe 7-3 are arranged on the top, the upper end of the central pipe 7-3 is provided with a connecting pipe 7-5 for connecting the reagent conveying device, the bottom of the shunt pipe 7-2 and the central pipe 7-3 is provided with an injection hole 7-4, the reagent can flow into the conditioning tank 2 through the injection hole 7-4, the reagent can be used for biological conditioning of the sewage, and the sewage can be continuously stirred to accelerate the conditioning efficiency.

[0047] As shown in Figures 1-5 The multi-stage filtering assembly 8 is provided, which comprises a plurality of inner partitions 8-1, the inner partitions 8-1 are arranged in the ecological filter tank 3, the first coarse sand layer 8-2, the biological active sludge layer 8-3, the medium sandy layer 8-4 and the second coarse sand layer 8-5 are filled between the inner partitions 8-1, and the part between the rightmost inner partition 8-1 and the inner wall of the ecological filter tank 3 is the drainage layer 8-6.

[0048] In some examples, in order to achieve the effect of biological filtration, a multi-stage filtering assembly 8 is designed, a plurality of inner partitions 8-1 are arranged in the ecological filter tank 3, and the first coarse sand layer 8-2, the biological active sludge layer 8-3, the medium sandy layer 8-4 and the second coarse sand layer 8-5 are filled in the inner part, wherein the biological active sludge layer 8-3 is composed of a planting layer and a biological purification layer from top to bottom, the wetland plants with purification function are planted in the planting layer, and the effect of biological filtration can be achieved, and finally the drainage layer 8-6 is arranged for centralized drainage.

[0049] As shown in Figures 1-5 The flow disinfection assembly 9 is provided, which comprises a rotating frame 9-1, the rotating frame 9-1 is rotationally connected to the inner wall of the ultraviolet disinfection box 4, the rotating frame 9-1 rotates through the control of a motor, a plurality of push rods 9-2 are arranged on the surface of the rotating frame 9-1, a plurality of inner plates 9-3 are fixed to the inner wall of the ultraviolet disinfection box 4, and ultraviolet disinfection lamps 9-4 are arranged on the opposite surfaces of the inner plates 9-3.

[0050] In some examples, in order to achieve the effect of ultraviolet disinfection, a flow disinfection assembly 9 is designed, a rotating frame 9-1 is rotationally connected in the ultraviolet disinfection box 4, a plurality of push rods 9-2 are arranged on the surface of the rotating frame 9-1, and the water flow can be driven during rotation, a plurality of inner plates 9-3 are fixed to one side in the ultraviolet disinfection box 4, and ultraviolet disinfection lamps 9-4 are arranged on the upper surface and the lower surface of the inner plates 9-3, which can irradiate the upper half and the lower half of the ultraviolet disinfection box 4.

[0051] For example, as shown in Figure 3As shown, the push rod 9-2 is located around the periphery of several inner plates 9-3.

[0052] In some examples, the pusher is located at the outermost edge of the inner plate 9-3, and when it rotates, it drives the surrounding water to flow, so that the water is disinfected more evenly.

[0053] For example, such as Figure 4 As shown, both the first coarse sand layer 8-2 and the second coarse sand layer 8-5 contain adsorbent functional materials.

[0054] In some examples, the first coarse sand layer 8-2 has a particle size distribution of 0.5mm-1.5mm, the second coarse sand layer 8-5 has a particle size distribution of 1mm-2mm, and the adsorption functional material has a particle size distribution of 5mm-10mm, such as activated carbon or zeolite. The medium sand layer 8-4 and the second coarse sand layer 8-5 are set to a constantly submerged state to form a grinding layer.

[0055] For example, such as Figure 4 As shown, the medium sand layer 8-4 contains biomass composite solid carbon source embedded microspheres.

[0056] In some examples, the preparation of biomass composite solid carbon source encapsulated microspheres involves: cutting straw into small cubes with a volume of 1 cm³, immersing the cubes in a 1.5% NaOH solution for 20 hours, washing the cubes with deionized water 3-4 times, adjusting the pH to neutral with dilute hydrochloric acid solution, and then drying the treated cubes in an oven at 80°C for 8 hours to obtain solid carbon source granules. These granules are then sealed and stored. The solid carbon source can provide sufficient carbon source for the system.

[0057] For example, such as Figure 4 As shown, the irradiation angle range of the ultraviolet disinfection lamp 9-4 is fan-shaped.

[0058] In some examples, the fan-shaped irradiation range allows multiple ultraviolet disinfection lamps 9-4 to fully cover the entire area inside the ultraviolet disinfection box 4.

[0059] When wastewater needs to be purified, the wastewater enters the sedimentation tank through the inlet pipe 6-1 and the slow flow cover 6-2 for sedimentation. The settled water is pumped out by the water pump 6-4, filtered by the filter 6-5, and then enters the equalization tank 2. The stirring rack 7-1 is started to stir, and biological reagents are injected through the injection hole 7-4 for treatment. After treatment, the water flows into the ecological filter tank 3. After multi-stage filtration, the water enters the ultraviolet disinfection box 4. The rotating rack 9-1 is started to make the push rod 9-2 push the water flow, and the ultraviolet disinfection lamp 9-4 is started for disinfection. Finally, the water flows into the storage tank 5.

[0060] It should be noted that the above examples are only used to illustrate the technical solutions of the present disclosure rather than limit the present disclosure. Although the present disclosure is described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present disclosure can be modified or equivalently replaced without departing from the spirit and scope of the technical solutions of the present disclosure, and all should be covered in the scope of the claims of the present disclosure.

Claims

1. An ecological wetland purification system, characterized in that, Include: Including sedimentation filter tank (1), conditioning tank (2), ecological filter tank (3), ultraviolet disinfection box (4) and water storage tank (5), the sedimentation filter tank (1), the conditioning tank (2), the ecological filter tank (3), the ultraviolet disinfection box (4) and the water storage tank (5) are sequentially communicated; Sediment discharge assembly (6), the sediment discharge assembly (6) is provided in the sedimentation filter tank (1); Mixing assembly (7), the mixing assembly (7) is provided in the conditioning tank (2); Multi-stage filter assembly (8), the multi-stage filter assembly (8) is provided in the ecological filter tank (3); Flow disinfection assembly (9), the flow disinfection assembly (9) is provided in the ultraviolet disinfection box (4); The sediment discharge assembly (6) includes a water inlet pipe (6-1), the water inlet pipe (6-1) is provided at one side of the sedimentation filter tank (1), one side in the sedimentation filter tank (1) is provided with a slow flow cover (6-2), the outside of the sedimentation filter tank (1) is provided with a drain cover (6-3), the inside of the sedimentation filter tank (1) is provided with a water pump (6-4), the water outlet end of the water pump (6-4) is located in the drain cover (6-3), the drain cover (6-3) is provided with a filter (6-5), the drain cover (6-3) is communicated with the conditioning tank (2).

2. The ecological wetland purification system according to claim 1, characterized in that, The mixing assembly (7) includes a pair of stirring frame (7-1), the stirring frame (7-1) is rotatably connected in the conditioning tank (2), the stirring frame (7-1) is rotated by motor control, the conditioning tank (2) is provided with a plurality of shunt pipes (7-2) on the top.

3. An ecological wetland purification system according to claim 2, wherein The shunt pipes (7-2) are connected with the collecting pipe (7-3), the shunt pipes (7-2) and the collecting pipe (7-3) are provided with a plurality of injection holes (7-4), and the collecting pipe (7-3) is provided with a connecting pipe (7-5).

4. The ecological wetland purification system of claim 1, wherein, The multi-stage filter assembly (8) includes a plurality of inner partitions (8-1), the inner partitions (8-1) are provided in the ecological filter tank (3), the inner partitions (8-1) are respectively filled with first coarse sand layer (8-2), biological activated sludge layer (8-3), medium sandy layer (8-4) and second coarse sand layer (8-5), the part between the inner partition (8-1) located at the rightmost side and the inner wall of the ecological filter tank (3) is the drainage layer (8-6).

5. The ecological wetland purification system of claim 1, wherein, The flow disinfection assembly (9) includes a rotating frame (9-1), the rotating frame (9-1) is rotatably connected to the inner wall of the ultraviolet disinfection box (4), the rotating frame (9-1) is rotated by motor control, and the rotating frame (9-1) is provided with a plurality of push rods (9-2) on the surface.

6. An ecological wetland purification system according to claim 5, wherein, The inner wall of the ultraviolet disinfection box (4) is fixed with a plurality of inner plates (9-3), the opposite surfaces of the inner plates (9-3) are provided with ultraviolet disinfection lamps (9-4).

7. An ecological wetland purification system according to claim 6, wherein The push rods (9-2) are located at the periphery of a plurality of the inner plates (9-3).

8. The ecological wetland purification system of claim 4, wherein, The first coarse sand layer (8-2) and the second coarse sand layer (8-5) contain adsorptive functional materials.

9. The ecological wetland purification system of claim 4, wherein, The medium sandy layer (8-4) contains biomass composite solid carbon source embedded small balls.

10. The ecological wetland purification system of claim 6, wherein, The ultraviolet disinfection lamp (9-4) has a fan-shaped irradiation angle range.

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