Fabricated sewage treatment system combining artificial rapid infiltration and artificial wetland

Abstract

The utility model discloses an assembled sewage treatment system combining artificial rapid infiltration with an artificial wetland, and relates to the technical field of sewage treatment. Comprising a high-level water tank, the high-level water tank is communicated with a pretreatment pool, the pretreatment pool is communicated with a rapid infiltration assembly, the rapid infiltration assembly is arranged below the pretreatment pool, the rapid infiltration assembly is communicated with a pool body, the pool body is arranged below the rapid infiltration assembly, and reeds and acorus calamus are planted in the pool body. According to the utility model, the high-level water tank, the pretreatment tank, the rapid infiltration assembly and the tank body are arranged in a stepped manner, so that sewage in the high-level water tank can flow into the tank body after sequentially passing through the pretreatment tank and the rapid infiltration assembly without external power, and impurities in the sewage can be filtered through the pretreatment tank and the rapid infiltration assembly; the accumulation of impurities in the sewage in the tank body is effectively avoided, so that the sewage treatment can be stably and circularly operated.

Description

Technical Field

[0001] The utility model relates to the technical field of sewage treatment, in particular to an assembled artificial fast infiltration combined with artificial wetland sewage treatment system. Background Art

[0002] Artificial wetland is a comprehensive ecosystem. It applies the principles of species symbiosis, material recycling and regeneration, and structure and function coordination in the ecosystem. On the premise of promoting the benign circulation of pollutants in wastewater, it fully taps the production potential of resources, prevents environmental re-pollution, and obtains the best benefits of sewage treatment and resource utilization.

[0003] However, since sewage still contains a large amount of impurities, and the traditional operation is to introduce sewage directly into artificial wetlands, it is easy to cause the inner surface of the artificial wetland to be covered with a large amount of impurities, resulting in the sewage being unable to effectively flow into the artificial wetland; at the same time, since a large number of plants are planted in the artificial wetland, the impurities in the artificial wetland are difficult to clean; therefore, there is an urgent need for an assembled artificial rapid infiltration combined with an artificial wetland sewage treatment system, which can filter and treat impurities in sewage so that the treated sewage can flow into the artificial wetland stably and effectively; effectively avoid the accumulation of impurities in sewage in the artificial wetland, so that the sewage treatment can be stably circulated. Utility Model Content

[0004] The utility model aims to provide a sewage treatment system combining an assembled artificial rapid infiltration and an artificial wetland, so as to solve the problems existing in the above-mentioned prior art.

[0005] To achieve the above-mentioned purpose, the utility model provides the following solution: The utility model provides an assembled artificial rapid infiltration combined with artificial wetland sewage treatment system, including a high-level water tank, the high-level water tank is connected to a pretreatment tank, the pretreatment tank is connected to a rapid infiltration component, the rapid infiltration component is arranged below the pretreatment tank, the rapid infiltration component is connected to a pool body, the pool body is arranged below the rapid infiltration component, and reeds and calamus are planted in the pool body.

[0006] Preferably, a baffle is fixedly connected between the opposite side walls of the pretreatment tank, and the baffle divides the pretreatment tank into two cavities. A plurality of baffles are fixedly connected in each of the cavities. A water inlet is provided at the lower portion of the side wall of one of the cavities, and the water inlet is connected to the high-level water tank. A water outlet is provided at the bottom of the other cavity, and the water outlet is connected to the fast infiltration component.

[0007] Preferably, the top surface of the baffle is not higher than the top surface of the pretreatment tank, and the top surface of the pretreatment tank is not higher than the bottom surface of the high-level water tank.

[0008] Preferably, the rapid infiltration component includes rapid infiltration boxes arranged upper and lower, and the bottom of the rapid infiltration boxes is provided with a drain outlet, the upper part of the upper rapid infiltration box is connected to the water outlet through a pipe, the drain outlet of the upper rapid infiltration box is connected to the top of the square rapid infiltration box through a pipe, and the drain outlet of the lower rapid infiltration box is connected to the pool body.

[0009] Preferably, a second partition is fixedly connected between the middle parts of the opposite side walls of the pool body, and a second perforated plate is fixedly connected to the top surface of the second partition. The second partition divides the pool body into a reed area and a calamus area. The top of the reed area is connected to the drain outlet of the quick infiltration box below through a pipe. The reeds are planted in the reed area, and the calamus is planted in the calamus area.

[0010] Preferably, a first partition is fixedly connected between the opposite side walls of the reed area, and the first partition divides the reed area into a first reed wetland and a second reed wetland. The bottom surface of the first partition is fixedly connected to the top surface of a first perforated plate, and the two side walls and the bottom surface of the first perforated plate are fixedly connected to the inner wall and the bottom of the reed area.

[0011] Preferably, a third partition is fixedly connected between opposite side walls of the calamus area, and the third partition divides the calamus area into a first calamus wetland and a second calamus wetland. The bottom surface of the third partition is fixedly connected to the top surface of a third perforated plate, and both side walls and the bottom surface of the third perforated plate are fixedly connected to the inner wall and the bottom of the calamus area.

[0012] Preferably, the top surface of the third partition is not higher than the top surface of the first partition.

[0013] The utility model discloses the following technical effects:

[0014] The utility model arranges the high-level water tank, the pretreatment tank, the rapid infiltration component and the tank body in a stepped manner, so that the sewage in the high-level water tank can flow into the tank body through the pretreatment tank and the rapid infiltration component in sequence without external power, and the impurities in the sewage can be filtered through the pretreatment tank and the rapid infiltration component, which effectively avoids the accumulation of impurities in the sewage in the tank body, so that the sewage treatment can be circulated stably. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0016] Figure 1It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the cross-sectional structure of the pretreatment tank of the utility model;

[0018] Figure 3 This is a schematic diagram of the cross-sectional structure of the quick seepage box of the utility model;

[0019] Figure 4 This is a schematic diagram of the cross-sectional structure of the pool body of the utility model;

[0020] Among them, 1. high-level water tank; 2. pretreatment tank; 3. fast infiltration tank; 4. first reed wetland; 5. second reed wetland; 6. first calamus wetland; 7. second calamus wetland; 8. pool body; 21. baffle; 22. baffle; 23. water inlet; 24. water outlet; 31. cover layer; 32. first artificially improved soil layer; 33. first fine crushed stone; 34. first coarse crushed stone; 35. drainage outlet; 41. second artificially improved soil layer; 42. second fine crushed stone; 4 3. Second coarse crushed stone; 51. Third artificial improved soil layer; 52. Third fine crushed stone; 53. Third coarse crushed stone; 61. Fourth artificial improved soil layer; 62. Fourth fine crushed stone; 63. Fourth coarse crushed stone; 71. Fifth artificial improved soil layer; 72. Fifth fine crushed stone; 73. Fifth coarse crushed stone; 74. Water trough; 81. First perforated plate; 82. Second perforated plate; 83. Third perforated plate; 84. First partition plate; 85. Second partition plate; 86. Third partition plate. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] In order to make the above-mentioned purposes, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0023] Reference Figure 1-Figure 4 The utility model discloses an assembled artificial fast infiltration combined with artificial wetland sewage treatment system, comprising a high-level water tank 1, the high-level water tank 1 is connected to a pretreatment tank 2, the pretreatment tank 2 is connected to a fast infiltration component, the fast infiltration component is arranged below the pretreatment tank 2, the fast infiltration component is connected to a pool body 8, the pool body 8 is arranged below the fast infiltration component, and reeds and calamus are planted in the pool body 8.

[0024] The utility model arranges the high-level water tank 1, the pretreatment tank 2, the rapid infiltration component and the tank body 8 in a stepped manner, so that the sewage in the high-level water tank 1 can flow into the tank body 8 after passing through the pretreatment tank 2 and the rapid infiltration component in sequence without external power, and the impurities in the sewage can be filtered through the pretreatment tank 2 and the rapid infiltration component, which effectively avoids the accumulation of impurities in the sewage in the tank body 8, so that the sewage treatment can be circulated stably.

[0025] In order to facilitate the control of water volume, a valve is installed on the pipeline between the high-level water tank 1 and the pretreatment tank 2.

[0026] Further optimization scheme, baffles 21 are fixedly connected between the opposite side walls of the pretreatment tank 2, and the baffles 21 divide the pretreatment tank 2 into two cavities, and a plurality of baffles 22 are fixedly connected in each cavity, and a water inlet 23 is provided at the lower part of the side wall of one cavity, and the water inlet 23 is connected to the high-level water tank 1, and a water outlet 24 is provided at the bottom of the other cavity, and the water outlet 24 is connected to the fast infiltration component. A filter mesh spoon is provided in the cavity with the water inlet 23, and the filter mesh spoon is provided at the water inlet 23, and the larger suspended matter in the sewage can be filtered out by the filter mesh spoon.

[0027] By setting a plurality of baffles 22, the water flow direction is baffled, which is used to change the water flow direction and increase the hydraulic retention time. All baffles 22 are arranged according to Figure 2 Water holes are provided at the water flow paths in the pretreatment tank 2 so that the sewage flows along the path of Figure 2 The water flows in the flow path, effectively increasing the hydraulic retention time.

[0028] According to a further optimization scheme, the top surface of the baffle 21 is not higher than the top surface of the pretreatment tank 2 , and the top surface of the pretreatment tank 2 is not higher than the bottom surface of the high-level water tank 1 .

[0029] Further optimization scheme, the fast infiltration assembly includes fast infiltration boxes 3 arranged in upper and lower parts, and the bottom of each fast infiltration box 3 is provided with a drain port 35, the upper part of the upper fast infiltration box 3 is connected to the water outlet 24 through a pipe, the drain port 35 of the upper fast infiltration box 3 is connected to the top of the square fast infiltration box 3 through a pipe, and the drain port 35 of the lower fast infiltration box 3 is connected to the tank body 8. The bottom of the fast infiltration box 3 is paved with a first coarse crushed stone 34, the top surface of the first coarse crushed stone 34 is paved with a first fine crushed stone 33, the top surface of the first fine crushed stone 33 is paved with a first artificially improved soil layer 32, the top surface of the first artificially improved soil layer 32 is paved with a covering layer 31, and the top surface of the covering layer 31 is not higher than the top surface of the fast infiltration box 3. When the sewage flowing out of the pretreatment tank 2 first flows into the upper quick infiltration box 3, the sewage flows through the covering layer 31, the first artificial improved soil layer 32, the first fine gravel 33, and the first coarse gravel 34 in turn, the sewage flows into the lower quick infiltration box 3 through the drain port 35 of the upper quick infiltration box 3, and flows into the tank body 8 through the drain port 35 of the lower quick infiltration box 3.

[0030] The covering layer 31 is made of ceramsite material, and the first artificial improved soil layer 32 is a mixture of river sand, red soil, zeolite and volcanic rock, and the ratio of river sand, red soil, zeolite and volcanic rock is 2:1:1:1.

[0031] A further optimized solution is that a second partition 85 is fixedly connected between the middle parts of the opposite side walls of the pool body 8, and a second perforated plate 82 is fixedly connected to the top surface of the second partition 85. The second partition 85 divides the pool body 8 into a reed area and a calamus area. The top of the reed area is connected to the drain outlet 35 of the quick infiltration box 3 below through a pipeline. Reeds are planted in the reed area, and calamus is planted in the calamus area.

[0032] A further optimized solution is that a first partition 84 is fixedly connected between the opposite side walls of the reed area, the first partition 84 divides the reed area into a first reed wetland 4 and a second reed wetland 5, the bottom surface of the first partition 84 is fixedly connected to the top surface of the first perforated plate 81, and the two side walls and the bottom surface of the first perforated plate 81 are fixedly connected to the inner wall and the bottom of the reed area.

[0033] The bottom of the first reed wetland 4 is paved with a second coarse gravel 43, the top surface of the second coarse gravel 43 is paved with a second fine gravel 42, and the top surface of the second fine gravel 42 is paved with a second artificial improved soil layer 41. The sewage flows into the first reed wetland 4 from the drainage outlet 35 of the quick infiltration box 3 below. The sewage flows through the second artificial improved soil layer 41, the second fine gravel 42, and the second coarse gravel 43 in turn, and then flows into the second reed wetland 5 through the first perforated plate 81.

[0034] Reeds are planted in the second artificial improved soil layer 41 . The second artificial improved soil layer 41 is a mixture of volcanic rock and zeolite, and the ratio of volcanic rock to zeolite is 1:1.

[0035] The bottom of the second reed wetland 5 is paved with a third coarse gravel 53, the top surface of the third coarse gravel 53 is paved with a third fine gravel 52, and the top surface of the third fine gravel 52 is paved with a third artificially improved soil layer 51. The sewage flows into the second reed wetland 5 from the first perforated plate 81, and the sewage flows from the bottom to the top through the third coarse gravel 53, the third fine gravel 52, and the third artificially improved soil layer 51 in sequence, and then the sewage flows into the first calamus wetland 6 through the second perforated plate 82.

[0036] Reeds are planted in the third artificially improved soil layer 51, which is a mixture of zeolite and ceramsite, with the ratio of zeolite to ceramsite being 1:1.

[0037] According to a further optimization scheme, a third partition 86 is fixedly connected between opposite side walls of the calamus area, and the third partition 86 divides the calamus area into a first calamus wetland 6 and a second calamus wetland 7. The bottom surface of the third partition 86 is fixedly connected to the top surface of the third perforated plate 83, and both side walls and the bottom surface of the third perforated plate 83 are fixedly connected to the inner wall and the bottom of the calamus area.

[0038] The bottom surface of the second perforated plate 82 is not lower than the top surface of the third partition plate 86 , so that the water in the first calamus wetland 6 will not flow back into the second reed wetland 5 .

[0039] The bottom of the first calamus wetland 6 is paved with fourth coarse gravel 63, the top surface of the fourth coarse gravel 63 is paved with fourth fine gravel 62, the top surface of the fourth fine gravel 62 is paved with a fourth artificially improved soil layer 61, and the sewage flows into the first calamus wetland 6 from the second perforated plate 82. The sewage flows through the fourth artificially improved soil layer 61, the fourth fine gravel 62, and the fourth coarse gravel 63 in turn, and then flows into the second calamus wetland 7 through the third perforated plate 83.

[0040] Acorus calamus is planted in the fourth artificially improved soil layer 61, and the fourth artificially improved soil layer 61 is made of ceramsite material.

[0041] The bottom of the second calamus wetland 7 is paved with fifth coarse gravel 73, the top surface of the fifth coarse gravel 73 is paved with fifth fine gravel 72, and the top surface of the fifth fine gravel 72 is paved with fifth artificial improved soil layer 71. After the sewage flows into the second calamus wetland 7 from the third perforated plate 83, the sewage flows from the fifth coarse gravel 73, the fifth fine gravel 72, and the fifth artificial improved soil layer 71 from bottom to top. When the sewage flows out of the fifth artificial improved soil layer 71, the sewage treatment is completed.

[0042] Acorus calamus is planted in the fifth artificially improved soil layer 71, and the fifth artificially improved soil layer 71 uses zeolite material.

[0043] Further optimization scheme, the top surface of the third partition 86 is not higher than the top surface of the first partition 84. And the top of the side wall of the second calamus wetland 7 opposite to the third partition 86 is provided with a water trough 74, the bottom surface of the water trough 74 is not higher than the top surface of the third partition 86, so that the water level in the second calamus wetland 7 is not higher than the top surface of the third partition 86, so that the water will not flow back into the first calamus wetland 6.

[0044] In order to adapt to the environment of different regions, plants should be selected according to local plants, and priority should be given to native plants with high survival rate after transplantation, well-developed root system, strong pollution resistance and decontamination ability, frost resistance and disease and pest resistance, high comprehensive benefits and easy management; plants should be composed of one or several plants according to their decontamination characteristics, growth cycle, landscape effect, etc.; plants should be reasonably configured according to the water depth and type of artificial wetlands.

[0045] Plant planting includes root seedling transplantation, seed propagation, harvested plant transplantation and potted plant transplantation. In the early stage of plant planting, its survival rate must be guaranteed. The planting time should be determined according to the growth characteristics of the plants, preferably in spring. In order to improve the purification effect in low temperature seasons, plants should adopt a certain rotation method, and plants with low temperature resistance can be planted in autumn and winter.

[0046] The planting density of plants can be adjusted according to the plant species and project requirements. The optimum density for emergent plants is 10 plants / m. 2 ~25 plants / m 2 Floating plants should be 3 clumps / m 2 ~9 clusters / m 2 , submerged plants should be 9 clusters / m 2 ~25 clusters / m 2 .

[0047] The medium should be kept moist when the plants are planted. In the early stage of plant growth, a certain water depth should be maintained in the pond body 8, and the hydraulic load should be gradually increased to acclimate the plants to the treated water quality.

[0048] Working process: four steps are set at the designated position, and the height difference between the upper and lower adjacent steps is 0.5m. The high-level water tank 1 and the pretreatment tank 2 are set on the highest step. The sewage is pumped into the high-level water tank 1 by a submersible pump. The flow of sewage into the pretreatment tank 2 can be controlled by the valve installed on the pipeline between the high-level water tank 1 and the pretreatment tank 2. The upper fast infiltration tank 3 is set on the step below the pretreatment tank 2, and the lower fast infiltration tank 3 is set on the step below the upper fast infiltration tank 3. The tank body 8 is set on the lowest step. The height difference can make the sewage not need external power and can effectively and stably flow into the tank body 8.

[0049] Open the valve, sewage flows from the high-level water tank 1 into the water inlet 23, flows through the filter scoop, and flows into the water outlet 24 along a number of baffles 22. The sewage flows into the upper fast infiltration box 3 through the water outlet 24. The sewage flows through the covering layer 31, the first artificially improved soil layer 32, the first fine crushed stone 33, and the first coarse crushed stone 34 in turn. The sewage flows into the lower fast infiltration box 3 through the drainage port 35 of the upper fast infiltration box 3, and flows into the first reed wetland 4 through the drainage port 35 of the lower fast infiltration box 3. Impurities in the sewage can be filtered through the two fast infiltration boxes 3. The sewage flows through the second artificially improved soil layer 41, the second fine crushed stone 42 in turn. , the second coarse gravel 43 and then flow into the second reed wetland 5 through the first perforated plate 81, so that the sewage flows from bottom to top through the third coarse gravel 53, the third fine gravel 52 and the third artificially improved soil layer 51 in turn, and then the sewage flows into the first calamus wetland 6 through the second perforated plate 82. The sewage flows through the fourth artificially improved soil layer 61, the fourth fine gravel 62 and the fourth coarse gravel 63 in turn, and then flows into the second calamus wetland 7 through the third perforated plate 83, so that the sewage flows from bottom to top through the fifth coarse gravel 73, the fifth fine gravel 72 and the fifth artificially improved soil layer 71 in turn. When the sewage flows out of the fifth artificially improved soil layer 71, the sewage treatment is completed.

[0050] In the description of the present invention, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0051] The embodiments described above are only descriptions of the preferred methods of the present invention, and are not intended to limit the scope of the present invention. Without departing from the design spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by ordinary technicians in this field should fall within the protection scope determined by the claims of the present invention.

Claims

1. A sewage treatment system combining assembled artificial rapid infiltration and artificial wetland, characterized by: The invention comprises a high-level water tank (1), wherein the high-level water tank (1) is connected to a pretreatment tank (2), wherein the pretreatment tank (2) is connected to a fast infiltration component, wherein the fast infiltration component is arranged below the pretreatment tank (2), wherein the fast infiltration component is connected to a tank body (8), wherein the tank body (8) is arranged below the fast infiltration component, and wherein reeds and calamus are planted in the tank body (8).

2. The assembled artificial rapid infiltration combined with artificial wetland sewage treatment system according to claim 1 is characterized by: A baffle (21) is fixedly connected between opposite side walls of the pretreatment tank (2), and the baffle (21) divides the pretreatment tank (2) into two cavities. A plurality of baffles (22) are fixedly connected in each cavity. A water inlet (23) is provided at the lower part of the side wall of one cavity, and the water inlet (23) is connected to the high-level water tank (1). A water outlet (24) is provided at the bottom of the other cavity, and the water outlet (24) is connected to the fast infiltration component.

3. The assembled artificial rapid infiltration combined with artificial wetland sewage treatment system according to claim 2 is characterized by: The top surface of the baffle (21) is not higher than the top surface of the pretreatment tank (2), and the top surface of the pretreatment tank (2) is not higher than the bottom surface of the high-level water tank (1).

4. The assembled artificial rapid infiltration combined with artificial wetland sewage treatment system according to claim 2 is characterized by: The fast infiltration component comprises fast infiltration boxes (3) arranged in an upper and lower manner, each of the fast infiltration boxes (3) having a drainage port (35) at its bottom, the upper portion of the fast infiltration box (3) being connected to the water outlet (24) via a pipeline, the drainage port (35) of the fast infiltration box (3) being connected to the top of the fast infiltration box (3) via a pipeline, and the drainage port (35) of the fast infiltration box (3) being connected to the pool body (8).

5. The assembled artificial rapid infiltration combined with artificial wetland sewage treatment system according to claim 4 is characterized by: A second partition (85) is fixedly connected between the middle parts of the opposite side walls of the pool body (8), and a second perforated plate (82) is fixedly connected to the top surface of the second partition (85). The second partition (85) divides the pool body (8) into a reed area and a calamus area. The top of the reed area is connected to the drainage outlet (35) of the quick infiltration box (3) below through a pipeline. The reeds are planted in the reed area, and the calamus is planted in the calamus area.

6. The assembled artificial rapid infiltration combined with artificial wetland sewage treatment system according to claim 5 is characterized by: A first partition (84) is fixedly connected between opposite side walls of the reed area, and the first partition (84) divides the reed area into a first reed wetland (4) and a second reed wetland (5). The bottom surface of the first partition (84) is fixedly connected to the top surface of a first perforated plate (81), and both side walls and the bottom surface of the first perforated plate (81) are fixedly connected to the inner wall and the bottom of the reed area.

7. The assembled artificial rapid infiltration combined with artificial wetland sewage treatment system according to claim 6 is characterized by: A third partition (86) is fixedly connected between opposite side walls of the calamus area, and the third partition (86) divides the calamus area into a first calamus wetland (6) and a second calamus wetland (7). The bottom surface of the third partition (86) is fixedly connected to the top surface of a third perforated plate (83), and both side walls and the bottom surface of the third perforated plate (83) are fixedly connected to the inner wall and the bottom of the calamus area.

8. The assembled artificial rapid infiltration combined with artificial wetland sewage treatment system according to claim 7 is characterized by: The top surface of the third partition plate (86) is not higher than the top surface of the first partition plate (84).

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