Water quality purification device for rainwater outlet

Abstract

The utility model aims to solve the problems that the rainwater runoff pollution treatment is poor, and pollutants such as SS, COD, nitrogen and phosphorus in a rainwater discharge port inspection well cannot be effectively removed. In order to solve the problem, the water quality purification device for the rainwater drainage port is realized through the following technical scheme: the water quality purification device for the rainwater drainage port comprises a water inlet pipe, one end of the water inlet pipe is communicated with the bottom of a precipitation well, an inclined pipe precipitation plate is arranged in the precipitation well, the precipitation well is further communicated with a water outlet pipe, and an inlet of the water outlet pipe is located above an outlet of the inclined pipe precipitation plate; the outlet of the hose is connected with a plurality of water distribution pipes in parallel, and the water distribution pipes are fixedly arranged on the plastic net frame.

Description

Technical Field

[0001] This utility model relates to the field of water purification and drainage, specifically to a water purification device for rainwater outfalls. Background Technology

[0002] Currently, there are two main types of rainwater outfall water purification facilities. One type uses the principle of vortex sedimentation or gravity sedimentation and is installed in the rainwater inspection well. It can quickly remove floating matter, SS and a small amount of COD, but it has almost no effect on removing nitrogen and phosphorus pollutants. Although it occupies a small area and has low cost, it is not good at treating rainwater runoff pollution. The other type uses a combination of regulation, chemical and biological processes, which can effectively remove pollutants such as SS, COD, nitrogen and phosphorus, but it occupies a large area and has high construction, operation and maintenance costs.

[0003] This utility model achieves effective removal of SS, COD, nitrogen and phosphorus pollutants by pretreatment and ecological treatment methods with a relatively small footprint. Utility Model Content

[0004] This invention aims to solve the problem of inadequate treatment of rainwater runoff pollution and the inability to effectively remove pollutants such as SS, COD, nitrogen and phosphorus from rainwater outfall inspection wells.

[0005] To solve the above problems, this application provides the following technical solution:

[0006] A water purification device for rainwater outfalls includes an inlet pipe, one end of which is connected to the bottom of a sedimentation well. The sedimentation well is equipped with an inclined tube sedimentation plate and is also connected to an outlet pipe. The inlet of the outlet pipe is located above the outlet of the inclined tube sedimentation plate, and the outlet of the outlet pipe is connected to a flexible hose. Multiple water distribution pipes are connected in parallel to the outlet of the flexible hose and are fixedly mounted on a plastic mesh frame.

[0007] The plastic mesh frame has multiple round holes.

[0008] The plastic mesh frame is fixedly installed on the support post, and a curtain is installed below the support post. The support post is fixed to the land on the riverbank by multiple ropes and several fixing holes.

[0009] The plastic mesh frame is in contact with multiple layers of filler material underneath, and each layer of filler material is fixed to the support column by bolts. Fiber bundles are fixedly installed under the multiple layers of filler material.

[0010] Preferably, each water distribution pipe is equipped with multiple branch outlets, and each branch outlet of the water distribution pipe irrigates one aquatic plant.

[0011] The plastic mesh frame is fixedly fitted with several aquatic plants.

[0012] The aquatic plants mentioned are one or more of the following: red lotus seed grass, water lily, and cattail.

[0013] Several curtains 11 are installed around the bottom of the support column 8, and each curtain 11 is fixed to the bottom of the river or lake by a rope 1101.

[0014] Compared with the prior art, this utility model has the following outstanding substantive features and significant progress:

[0015] 1. This utility model uses inclined tube sedimentation plates to quickly remove suspended solids, SS and other substances from rainwater runoff pollution, and uses floating ecological treatment zones to remove COD, nitrogen and phosphorus and other substances from runoff pollution, with good removal effect.

[0016] 2. This utility model device can be installed in a river channel and can still be implemented even when there is no land available on the ground.

[0017] 3. The support height of the floating ecological treatment system of this utility model can be dynamically adjusted according to the water level of rivers and lakes without affecting the pollution removal effect. The upper part of the plastic mesh frame is planted with aquatic plants, the middle part is filled with lightweight filler, the lower part is floating fiber bundles, and the sides are floating curtains. The device can float with the water level of rivers and lakes without affecting the removal effect of pollutants.

[0018] 4. This utility model provides a water purification device for rainwater outfalls. It occupies a small area and removes rainwater runoff pollution by combining a ground-level inclined tube sedimentation pretreatment zone and a floating ecological treatment facility in the river. It features a small ground-level footprint, good pollutant removal effect, and good landscape effect. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure described in this utility model.

[0020] Figure 2 for Figure 1 AA cross-section view.

[0021] In the diagram: 1. Inlet pipe; 2. Inclined tube sedimentation plate; 3. Sedimentation well; 4. Outlet pipe; 5. Flexible hose; 6. Water distribution pipe; 7. Plastic mesh frame; 8. Support column; 9. Filler; 10. Fiber bundle; 11. Curtain; 12. Fixing buckle; 13. Aquatic plants.

[0022] Inclined tube sedimentation plate 2 was purchased from Zhengzhou Anlu Environmental Protection Equipment Co., Ltd. as a PVC inclined tube sedimentation plate.

[0023] Plastic mesh frame 7 is a coarse-grid plastic mesh frame wrapped with geotextile. Plastic mesh frame 7 was purchased from Langfang Qimeng Environmental Protection Technology Co., Ltd. as an ecological floating island plastic mesh frame.

[0024] Support column 8 was purchased from Anhui Zhongfei Pipeline Technology Co., Ltd.

[0025] Filler 9 is an inner filler made of lightweight foamed plastic blocks; it was purchased from Chenxu Environmental Protection Technology (Hebei) Co., Ltd. as planting rock wool.

[0026] Fiber bundle 10 is made of polypropylene and was purchased from Gongyi Lvjie Environmental Protection Materials Co., Ltd.

[0027] Curtain 11 is a floating curtain, purchased from Guangzhou Airangsheng Plastic Products Co., Ltd. as a PVC plastic curtain.

[0028] Fixed buckle 12 is a floating fixed buckle, purchased from Taizhou Quanchuang Stainless Steel Products Co., Ltd.

[0029] Aquatic plants 13 include *Amaranthus rubra*, *Carex maritima*, and *Typha orientalis*, which have the ability to remove nitrogen and phosphorus pollutants. *Amaranthus rubra* was purchased from Qingzhou Shunchang Flower and Seedling Horticulture Company; *Typha orientalis* was purchased from Shuyang Xiangwen Landscape Greening Co., Ltd.; and *Carex maritima* was purchased from Suqian Hema Ecological Construction Co., Ltd. Detailed Implementation

[0030] It should be understood that the terms "one end," "inside," "entrance," "exit," "upper," "lower," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the present invention.

[0031] Furthermore, the description of this invention is merely a preferred embodiment and is not intended to limit the invention. Although the invention has been described in detail with reference to the embodiments, those skilled in the art can still modify the technical solutions described in the embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this invention should be included within the protection scope of this invention.

[0032] Example 1

[0033] As shown in the figure: A water purification device for rainwater outfalls.

[0034] A water purification device for rainwater outfalls includes an inlet pipe 1, one end of which is connected to the bottom of a sedimentation well 3. The sedimentation well 3 is equipped with an inclined tube sedimentation plate 2. The sedimentation well 3 is also connected to an outlet pipe 4. The inlet of the outlet pipe 4 is located above the outlet of the inclined tube sedimentation plate 2. The outlet of the outlet pipe 4 is connected to a flexible hose 5. The outlet of the flexible hose 5 is connected in parallel to multiple water distribution pipes 6. The water distribution pipes 6 are fixedly mounted on a plastic mesh frame 7.

[0035] The plastic mesh frame 7 has multiple round holes.

[0036] The plastic mesh frame 7 is fixedly installed on the support post 8. A curtain 11 is installed below the support post 8. The support post 8 is fixed to the land on the riverbank by multiple ropes and several fixing holes 12.

[0037] The plastic mesh frame 7 is in contact with multiple layers of filler 9 below, and each layer of filler 9 is fixed to the support column 8 by bolts. Fiber bundles 10 are fixedly installed below the multiple layers of filler 9.

[0038] Each water distribution pipe 6 is equipped with multiple branch outlets, and each branch outlet of the water distribution pipe 6 irrigates one aquatic plant 13.

[0039] Several aquatic plants 13 are fixedly mounted in the plastic mesh frame 7.

[0040] Aquatic plants 13 are one or more of the following: red lotus grass, water lily, and cattail. They are emergent plants with the ability to remove pollutants such as nitrogen and phosphorus.

[0041] The function of fiber bundle 10 is to immobilize microorganisms in the water and create an aerobic-anoxic layer on the fiber bundle, further purifying the water. The length of fiber bundle 10 is 30-40cm.

[0042] The fiber bundle 10 is a hollow fiber. The bottom of the curtain 11 is fixed to the riverbed by ropes. Several curtains 11 are installed around the support column 8, and each curtain 11 is fixed and buried to the bottom of the river or lake by ropes 1101.

[0043] Wastewater is purified layer by layer through the plant layer, filler layer and fiber bundle layer before being discharged into the water bodies of rivers and lakes. A relatively independent area is formed in the water body below the plastic mesh frame 7. The function of the curtain 11 is to reduce the disturbance of the original river and lake water flow to the fiber bundle 10.

[0044] Rainwater flows into sedimentation well 3 from inlet pipe 1. Under the action of inclined tube sedimentation plate 2, impurities are filtered out. The filtrate flows through outlet pipe 4, hose 5, and distribution pipe 6 and finally into the root system of aquatic plants 13 planted on plastic mesh frame 7. Aquatic plants 13 remove COD, nitrogen and phosphorus and other substances from the pollutants. The clean rainwater is then permeated through lightweight filler 9 and filtered, flowing into the river along fiber bundle 10.

Claims

1. A water quality purification device for a rainwater outlet, comprising a water inlet pipe (1), characterized in that, The water inlet pipe (1) is communicated with the bottom of the sediment well (3), the sediment well (3) is internally provided with the inclined pipe sediment plate (2), the sediment well (3) is also communicated with the water outlet pipe (4), the inlet of the water outlet pipe (4) is located above the outlet of the inclined pipe sediment plate (2), the outlet of the water outlet pipe (4) is communicated with the hose (5), the outlet of the hose (5) is connected with multiple water distribution pipes (6), and the water distribution pipes (6) are fixedly arranged on the plastic net frame (7).

2. The water purifying device for rainwater drain according to claim 1, wherein The plastic net frame (7) is provided with multiple circular holes.

3. The water purifying device for rainwater drain according to claim 1, wherein The plastic net frame (7) is fixedly arranged on the support column (8), the support column (8) is provided with the curtain (11) below, and the support column (8) is fixedly arranged on the land of the river bank through multiple ropes and the fixing buckles (12).

4. The water purifying device for rainwater drain according to claim 1, wherein The plastic net frame (7) is in contact with the multiple layers of fillers (9) below, each layer of filler (9) is fixedly arranged on the support column (8) through a bolt, and the multiple layers of fillers (9) are fixedly arranged with the fiber bundles (10) below.

5. The water purifying device for rainwater drain according to claim 1, wherein Each water distribution pipe (6) is provided with multiple shunt outlets, and each shunt outlet of the water distribution pipe (6) irrigates one aquatic plant (13).

6. The water purifying device for rainwater drain according to claim 1, wherein The plastic net frame (7) is fixedly arranged with the multiple aquatic plants (13).

7. The water purifying device for rainwater outlet according to claim 6, wherein The aquatic plants (13) are one or more of red lotus, sphagnum moss and cattail.

8. The water purifying device for rainwater drain according to claim 3, wherein The support column (8) is provided with the multiple curtains (11) below the periphery, and each curtain (11) is fixedly hung on the bottom of the river or lake through the rope (1101).

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