Ecological treatment device for discharge port

Abstract

The utility model discloses an ecological treatment device for a discharge port, which is arranged opposite to the discharge port on a revetment, and comprises a primary filter dam, a secondary filter dam, a secondary filter dam and a secondary filter dam, the first-stage water purification filler layer is located in the internal area, the self-rotating water distributor is located below the bearing plate, and the first-stage water purification filler layer is located above the bearing plate; the HDPE impermeable membrane is arranged in the internal area, the HDPE impermeable membrane is located between the primary water purification filler layer and the inner side wall of the revetment, and a preliminary sedimentation tank is formed between the HDPE impermeable membrane and the inner side wall of the revetment; a water pump is arranged in the pre-sedimentation tank and is communicated with the self-rotating water distributor. The device disclosed by the utility model basically has no requirements on the field and the water quality of the discharge port; the operation and maintenance difficulty is low; the ecological adaptability and environmental adaptability are good, plants can grow, and the requirements of various landscapes / scenes can be met; and time is bought for pipeline improvement in overall improvement of urban black and odorous water bodies.

Description

Technical Field

[0001] The utility model relates to the technical field of surface water environment restoration, in particular to a source control and pollution interception device, and more specifically to an outlet ecological treatment device. Background Art

[0002] The city's drainage network is usually composed of sewage collection networks and rainwater collection networks. Since the networks are located underground, their operation, network construction and maintenance are relatively difficult. In addition, during the urban construction process, some enterprises and residents will mistakenly connect sewage pipes to rainwater pipes. Finally, some sewage is directly discharged into the river, causing the water quality of the river to deteriorate and affecting the environment.

[0003] CN209890442U discloses a floating treatment device for treating combined sewage at river outlets, including a pretreatment tank, an integrated treatment tank, a sludge storage tank, a sewage pipe and a sludge pipe; CN210103685U discloses a collection and treatment system for river sewage outlets, including a sewage outlet pipe, a collection inspection well, an integrated sewage treatment device, a composite artificial wetland on the bank slope and a sewage discharge pipe. The above-mentioned prior art treatment pools have relatively more components and are more expensive.

[0004] In view of the above problems, the utility model proposes an ecological treatment device for river outlets to solve the problem of sewage or rainwater and sewage mixed flow point source pollution suddenly entering the river, and to overcome the system collapse and black and smelly phenomenon caused by sewage entering the river. Utility Model Content

[0005] The utility model provides an ecological treatment device for an outlet, which aims to solve the following problems: 1. The existing river channel may experience ecological collapse and return to black and odorous state due to sudden sewage discharge from pipelines; 2. It can buy time for the treatment of urban black and odorous water bodies and the repair of pipeline networks, and buffer the harm of sewage entering urban rivers.

[0006] The purpose of the utility model can be achieved through the following technical solutions:

[0007] The ecological treatment device for the drainage outlet is arranged opposite to the drainage outlet on the revetment, and comprises:

[0008] The first-stage filter dam has two ends connected to the inner wall of the revetment, forming an inner area between the first-stage filter dam and the revetment;

[0009] The first-level water purification filler layer is located in the above-mentioned internal area.

[0010] The self-spinning water distributor is located below the support plate, and the first-level water purification filler layer is located above the support plate;

[0011] A HDPE anti-seepage membrane is arranged in the above-mentioned internal area, the HDPE anti-seepage membrane is located between the primary water purification filler layer and the inner wall of the revetment, and a pre-sedimentation tank is formed between the HDPE anti-seepage membrane and the inner wall of the revetment;

[0012] A water pump is installed in the pre-sedimentation tank, and the self-rotating water distributor is connected to the water pump.

[0013] The first-level filter dam is located on the concrete cushion layer; the first-level filter dam is U-shaped; the first-level filter dam is formed by stacking porous permeable brick blocks.

[0014] Furthermore, the device also includes: a crushed stone cushion layer, which is laid on the riverbed, and the crushed stone cushion layer is composed of crushed stones with a thickness of 100 mm and a particle size of 2-4 cm;

[0015] Concrete cushion, located on the gravel cushion, the concrete cushion is made of 200mm thick C15 concrete;

[0016] The self-rotating water distributor is located between the concrete cushion layer and the primary water purification filler layer; the pre-sedimentation tank corresponds to the discharge port position.

[0017] The water outlet of the discharge port extends to the top of the pre-sedimentation tank; a basket grille is arranged below the water outlet of the discharge port, and the basket grille is fixed on the revetment.

[0018] The first-level water purification filler layer is filled with gabion cages. The size of a single gabion cage is L*B*H=1.5*0.5*0.2m, and a soft rope handle is set on the top of the gabion cage.

[0019] The water purification filler inside the primary water purification filler layer is selected from one of light filler, activated carbon, volcanic rock, and zeolite, and has a particle size of 3-8 cm.

[0020] Furthermore, the device also includes water purification plants, which are evenly planted on the first-level water purification filler layer and the first-level filter dam, and the water purification plants are selected from one of pennywort and foxtail algae.

[0021] Furthermore, the device is provided with multiple layers of filter dams and multiple layers of water purification filler layers.

[0022] Furthermore, a secondary filter dam and a secondary water purification filler layer are arranged outside the primary filter dam and the primary water purification filler layer of the device.

[0023] Furthermore, the shape of the device is not limited to a square or concentric circles.

[0024] The beneficial effects of the utility model: the device of the utility model is simple and easy to use, and has basically no requirements on the site, water volume and water quality of the outlet; no special person is needed to supervise it 24 hours a day, and the operation and maintenance difficulty is low; it has good ecological adaptability and environmental adaptability, plants can grow, and it can meet various landscape / scene requirements; it buys time for pipeline improvement in the overall improvement of urban black and odorous water bodies. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are 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 creative work.

[0026] Figure 1 This is the front view of the ecological treatment device for the discharge port of the utility model;

[0027] Figure 2 for Figure 1 Middle AA section;

[0028] Figure 3 for Figure 1 Middle BB section;

[0029] Figure 4 This is a further implementation diagram of the ecological treatment device for the discharge port of the utility model;

[0030] In the attached drawings, the list of components represented by each reference number is as follows: 1. Gravel cushion layer; 2. Concrete cushion layer; 3. Primary water purification filler layer; 4. Primary filter dam; 5. Water purification plants; 6. Support plate; 7. Self-rotating water distributor; 8. Water pump; 9. Basket grille; 10. HDPE anti-seepage membrane; 11. Revetment; 12. Pre-sedimentation tank; 13. Outlet; 14. Riverbed; 15. Normal water level; 31. Secondary water purification filler layer; 41. Secondary filter dam. DETAILED DESCRIPTION

[0031] 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 of 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.

[0032] Example 1

[0033] See also Figure 1 , Figure 3 As shown, the drainage ecological treatment device provided by the utility model is arranged opposite to the drainage 13 on the revetment 11, and the water outlet of the drainage 13 extends to the top of the pre-sedimentation tank 12 of the device;

[0034] A basket grille 9 is provided below the outlet of the discharge port 13, and the basket grille 9 is fixed to the revetment 11 by anchors and can be freely loaded and unloaded; the basket grille performs preliminary filtration on the water quality of the discharge port, and the basket grille can be a combination of a PVC finished frame or a stainless steel mesh;

[0035] See also Figure 1-Figure 3 As shown, the ecological treatment device for the outlet provided by the utility model is composed of the following specific components:

[0036] A crushed stone cushion layer 1 is laid on the riverbed 14, and the crushed stone cushion layer 1 is composed of crushed stones with a thickness of 100 mm and a particle size of 2-4 cm;

[0037] Concrete cushion 2 is located on the gravel cushion 1, and the concrete cushion 2 is leveled and stabilized by 200mm thick C15 concrete;

[0038] The primary filter dam 4 is formed by stacking porous permeable brick blocks; the primary filter dam 4 is located on the concrete cushion layer 2; the primary filter dam 4 is U-shaped, and its two ends are respectively connected to the inner wall of the revetment 11; an internal area is formed between the primary filter dam 4 and the revetment 11;

[0039] The first-level water purification filler layer 3 is located in the above-mentioned internal area. The first-level water purification filler layer is filled with gabions. The size of a single gabion is L*B*H=1.5*0.5*0.2m. A soft rope handle is set at the top, which can be manually lifted out for packing cleaning and replacement;

[0040] The water purification filler inside the primary water purification filler layer 3 can be adjusted according to the water quality of the incoming water, and can be made of light filler, activated carbon, volcanic rock, zeolite, etc., with a particle size of 3-8 cm.

[0041] Porous permeable bricks (existing conventional products will do) have the following characteristics: good adsorption effect, interception of suspended matter; good ammonia nitrogen and inorganic phosphorus treatment effect; good biophilia, all kinds of plants can grow luxuriantly in the filler.

[0042] Pollutants are reduced through lightweight fillers (existing conventional products can be used). Lightweight fillers further reduce pollutants while extending sewage retention time to achieve better treatment effects. Treatment capacity and ecological environmental benefits are improved through water purification plants.

[0043] Water purification plants 5 are evenly planted on the primary water purification filler layer 3 and the primary filter dam 4. The water purification plants 5 can be selected from pennywort, foxtail algae, etc.

[0044] The self-spinning water distributor 7 is located between the concrete cushion layer 2 and the primary water purification filler layer 3. A supporting plate 6 is provided on the self-spinning water distributor 7, and the supporting plate 6 is used to separate the water purification filler of the primary water purification filler layer 3.

[0045] The main body of the self-rotating water distributor 7 (existing product) is composed of a base, a bearing, and a fan-blade water distribution paddle. The fan-blade water distribution slurry has 10mm holes opened obliquely upward at an interval of 15mm. The self-rotating water distributor 7 is connected to the water pump 8 through a pipeline. The water pump is used to increase the pressure to more than 0.2Mpa. The water flow drives the water distribution slurry to rotate and distribute water, while loosening the filler to extend the service life of the filler.

[0046] Multiple groups of self-spinning water distributors can be connected in parallel or series, and the service area of ​​a single water distributor is 4-8 square meters.

[0047] The size of the support plate is adjusted according to the discharge situation. It has good pressure-bearing performance, acid and alkali resistance, and 10mm round holes are evenly opened at intervals of 10mm.

[0048] A HDPE anti-seepage membrane 10 is arranged in the above-mentioned internal area. The HDPE anti-seepage membrane 10 is located between the primary water purification filler layer 3 (also including the self-spinning water distributor 7 and the supporting plate 6 below the primary water purification filler layer 3) and the inner wall of the revetment 11. A pre-sedimentation tank 12 is formed between the HDPE anti-seepage membrane 10 and the inner wall of the revetment 11; the pre-sedimentation tank 12 corresponds to the position of the discharge port 13, and the sewage discharged from the discharge port 13 enters the pre-sedimentation tank 12 after passing through the basket grille 9;

[0049] The HDPE impermeable membrane 10 is used to separate the area below the outlet 13 as a pre-sedimentation tank 12 and a water distribution tank. A water pump 8 is arranged in the pre-sedimentation tank 12, and the water pump 8 cooperates with a self-spinning water distributor to distribute water. The water pump can be powered by municipal power, solar power, or both municipal power and solar power.

[0050] Example 2

[0051] When the water quality and water volume of the outlet are higher than a certain standard, the outlet ecological treatment device provided by the utility model can be equipped with a multi-layer porous permeable brick filter dam and a light filler for multi-stage treatment. Figure 4 As shown, a secondary filter dam 41 and a secondary water purification filler layer 31 may be provided, and so on.

[0052] The height of the utility model should be adjusted with the normal water level of the river, ensuring that it is 10-20 centimeters higher than the normal water level. While ensuring the retention time of sewage, it is covered with water-purifying plants to ensure the good landscape of the urban river.

[0053] The appearance of the utility model is not limited to Figure 1-Figure 4 The square shown in the figure can also be set to various forms such as concentric circles to match the landscape shape. That is, the shape of the primary filter dam 4 is not limited to the U-shape, and can also be set to various forms such as concentric circles.

[0054] The utility model is provided with a mud discharge port on the upper edge of the first-level filter dam 4, and mud and slag can be discharged in time according to the sedimentation situation, and backwashing and mud discharge can be performed to improve the service life.

[0055] The self-spinning water distributor of the utility model can be replaced by a finished sprinkler filter nozzle on the market.

[0056] The support plate of the utility model can be replaced by a cement prefabricated filter plate or "angle iron + stainless steel mesh".

[0057] In the description of the specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0058] The above contents are merely examples and explanations of the structure of the utility model. The technicians in the technical field may make various modifications or additions to the specific embodiments described or replace them in a similar manner. As long as they do not deviate from the structure of the utility model or exceed the scope defined in the claims, they should all fall within the protection scope of the utility model.

Claims

1. An ecological treatment device for the drainage outlet, which is arranged opposite to the drainage outlet (13) on the revetment (11), and is characterized by: The device includes: A primary filter dam (4), both ends of which are respectively connected to the inner side walls of the revetment (11), and an internal area is formed between the primary filter dam and the revetment (11); The primary water purification filler layer (3) is located in the above-mentioned inner area. A self-spinning water distributor (7) is located below the support plate (6), and a primary water purification filler layer (3) is located above the support plate (6); A HDPE anti-seepage membrane (10) is arranged in the above-mentioned internal area, the HDPE anti-seepage membrane (10) is located between the primary water purification filler layer (3) and the inner wall of the revetment (11), and a pre-sedimentation tank (12) is formed between the HDPE anti-seepage membrane (10) and the inner wall of the revetment (11); A water pump (8) is arranged in the pre-sedimentation tank (12), and the self-spinning water distributor (7) is connected to the water pump (8).

2. The ecological treatment device for the drainage outlet according to claim 1 is characterized by: The primary filter dam (4) is located on the concrete cushion layer (2); the primary filter dam (4) is in a U-shape; the primary filter dam (4) is formed by stacking porous permeable brick blocks.

3. The ecological treatment device for the drainage outlet according to claim 1 is characterized by: Also includes: A crushed stone cushion layer (1) is laid on the riverbed (14), wherein the crushed stone cushion layer (1) is composed of crushed stones with a thickness of 100 mm and a particle size of 2-4 cm; A concrete cushion layer (2) is located on the crushed stone cushion layer (1), and the concrete cushion layer (2) is made of 200 mm thick C15 concrete; The self-rotating water distributor (7) is located between the concrete cushion layer (2) and the primary water purification filler layer (3); the pre-sedimentation tank (12) and the discharge port (13) are located correspondingly.

4. The ecological treatment device for the drainage outlet according to claim 1 is characterized by: The water outlet of the discharge port (13) extends to the top of the pre-sedimentation tank (12); a basket grille (9) is provided below the water outlet of the discharge port (13), and the basket grille (9) is fixed on the revetment (11).

5. The ecological treatment device for the drainage outlet according to claim 1 is characterized by: The first-level water purification filler layer (3) is filled with a gabion cage, and a soft rope handle is arranged at the top of the gabion cage.

6. The ecological treatment device for drainage outlet according to claim 1, characterized in that: The water purification filler inside the primary water purification filler layer (3) is selected from one of light fillers, activated carbon, volcanic rock, and zeolite, and has a particle size of 3-8 cm.

7. The ecological treatment device for drainage outlet according to claim 1, characterized in that: It also includes water purification plants (5) which are evenly planted on the first-level water purification filler layer (3) and the first-level filter dam (4), and the water purification plants (5) are selected from one of pennywort and foxtail algae.

8. The ecological treatment device for drainage outlet according to claim 1, characterized in that: The device is provided with multiple layers of filter dams and multiple layers of water purification filler layers.

9. The ecological treatment device for the drainage outlet according to claim 8, characterized in that: A secondary filter dam (41) and a secondary water purification filler layer (31) are also arranged outside the primary filter dam (4) and the primary water purification filler layer (3) of the device.

10. The ecological treatment device for drainage outlet according to claim 9, characterized in that: The device has a square or concentric circle shape.

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