Assembled ecological purification facility for green belt

Abstract

The utility model provides an assembled ecological purification facility for a green belt, and relates to the technical field of water environment treatment and sponge city construction. The facility is composed of an ecological purification box and aims at achieving the dual purposes of smooth drainage and water quality purification. During light rain, rainwater is converged to the ecological purification box and enters the catch basin through the PVC perforated pipe after being purified, and during heavy rain, the rainwater is converged to the ecological purification box, one part of the rainwater enters the catch basin through the PVC perforated pipe after being purified, and the other part of the rainwater overflows and directly enters the catch basin through the catch basin cover. The facility is suitable for various scenes such as road green belts, public green lands and residential districts, the double functions of water ecology and water landscapes are integrated, different numbers of ecological purification boxes can be flexibly configured according to actual water source pollution loads, urban non-point source pollution is effectively reduced, and regional water environment safety is further guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to water environment treatment and sponge city construction technical field, especially relate to a green belt is with assembled ecological purification facility. BACKGROUND

[0002] In the urbanization process, the water ecology and waterscape function of road green belt, green land and community green belt and other areas are increasingly valued. The traditional rainwater treatment mode often lacks ecologicality and sustainability, resulting in that rainwater resources cannot be fully utilized, and the pollutants in rainwater can also cause negative effects on the surrounding environment.

[0003] In view of the above problems, some ecological purification facilities appear in the market, but these facilities mostly have problems such as not easy to adjust, limited purification effect and the like. Especially in heavy rain and rainstorm conditions, the traditional facilities often cannot effectively cope with the flow and purification demand of rainwater, resulting in low rainwater treatment efficiency.

[0004] Therefore, a new type of assembled ecological purification facility is needed to solve the problems in the prior art. SUMMARY

[0005] In view of the deficiencies of the prior art, the utility model provides a green belt is with assembled ecological purification facility, has efficient purification capacity and adapts to different pollution conditions, solves the problems raised in the background art.

[0006] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0007] A green belt is with assembled ecological purification facility, characterized in that: the facility includes an ecological purification box, the ecological purification box is connected with a nearby rainwater well, the upper part of the ecological purification box is open, and the ecological purification box is configured with loam, impermeable geomembrane, gravel drainage layer, filter layer and ceramsite cover layer from bottom to top, plants such as equisetum arvense, miscanthus sinensis var. lutariorum, miscanthus sinensis var. compactus and mariscus filipes are planted on the ceramsite cover layer, PVC perforated pipe is arranged in the gravel drainage layer, the ecological purification box is connected with the rainwater well through the PVC perforated pipe, and a detention layer is arranged above the ecological purification box.

[0008] As a further preferred scheme, the box body of the ecological purification box is made of PVC material.

[0009] As a further preferred scheme, the compaction coefficient of the loam is greater than 0.95.

[0010] As a further preferred scheme, the thickness of the gravel drainage layer is 200m, and gravel with a particle size of 15-30mm is used.

[0011] As a further preferred scheme, the filter layer comprises 100m thick medium coarse sand and 300m thick graded sand from bottom to top, the graded sand comprises raw soil, coarse sand, medium sand and fine sawdust, the ratio of the raw soil: coarse sand: medium sand is 1:1.5:6.95, and the fine sawdust is doped at a ratio of 1% of the mass of the graded sand.

[0012] As a further preferred scheme, the filter layer further comprises a limestone, pyrite, zeolite, gravel mixture.

[0013] As a further preferred scheme, the ceramic particle cover layer has a thickness of 50mm and adopts ceramic particles with a particle size of 15-25mm.

[0014] As a further preferred scheme, the retention layer has a thickness of 200mm.

[0015] As a further preferred scheme, the ecological purification box is detachable and the number of ecological purification boxes can be configured according to the site condition and pollution condition.

[0016] Compared with the prior art, the utility model has the following beneficial effects:

[0017] 1. The ecological purification box can adapt to different sites and pollution conditions, realize flexible adjustment of capacity, and has different numbers such as one group, two groups, three groups, four groups and the like according to the site condition, pollution condition and the like, is convenient to assemble and detach.

[0018] 2. The ecological purification box has high purification capacity and can effectively reduce pollutants entering a rainwater system, compared with a traditional filter layer, the design considers further enhancing the chemical stability of the filter system, increases limestone, pyrite, zeolite, gravel mixture in the filter layer, increases ecological function, and increases the contact area of water and biological membrane, so that the pollutants in the water are purified through adsorption, biological degradation, contact precipitation and the like when flowing through the filter layer, and the pollutants entering the rainwater system are effectively reduced.

[0019] 3. The ecological purification box has ecological and landscape functions, plants in the box increase the landscape function, is coordinated with the surrounding environment, and is more beautiful. DETAILED DESCRIPTION

[0020] Figure 1 It is a whole structure schematic view of the utility model device;

[0021] Figure 2 It is a top view schematic view of the utility model.

[0022] Among them, 1 is an ecological purification box, 2 is plain soil, 3 is an impermeable soil work film, 4 is a PVC perforated pipe, 5 is a gravel drainage layer, 6 is a filter layer, 7 is a ceramic particle cover layer, 8 is a retention layer, 9 is a rainwater well cover, 10 is a rainwater well, and 11 is a municipal pipeline. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of the present application.

[0024] As shown in Figure 1 and Figure 2 A kind of green belt ecological purification facilities of assembly, including ecological purification box 1, the box body of ecological purification box 1 is PVC material, the upper portion of box body is open, ecological purification box 1 is configured with soil 2 from bottom to top, anti-seepage earthwork membrane 3, gravel drainage layer 5, filter layer 6, ceramsite cover layer 7, and plants such as horse hoof gold, variegated leaf bamboo, fine leaf bamboo, silver edge along step grass are planted in ceramsite cover layer 7, increase landscape function, coordinate with surrounding environment, more beautiful, gravel drainage layer 5 is equipped with PVC perforated pipe 4, ecological purification box 1 is connected with rainwater well 10 by PVC perforated pipe 4, PVC perforated pipe 4 is placed with 0.2% slope to the horizontal line of rainwater well 10, 200mm thick retention layer 8 is equipped above ecological purification box 1 for temporarily storing rainwater, using the absorption of plant root system to rainwater preliminary purification, slow down water flow speed.

[0025] Specifically, the compaction coefficient of soil 2 is greater than 0.95, and the thickness of gravel drainage layer 2 is 200 m, which is composed of 15-30 mm gravel.

[0026] Specifically, the size of PVC perforated pipe 4 is DN150, the aperture is 10 mm, and the perforation rate is 1%.

[0027] Specifically, filter layer 6 includes 100 mm medium sand (0.5-2 mm, 2 mm sieve rate is not less than 50%) and 300 mm thick graded sand, and the ratio of original soil: coarse sand (1-2 mm): medium sand (0.25-1 mm) in graded sand is 1:1.5:6.95, and the doping ratio of fine wood chips in graded sand is 1% (mass ratio). By combining different particle size sand layers, more effective filtering effect and water flow control are achieved. Filter layer 6 also includes limestone, pyrite, zeolite and gravel mixture, which enhances the ecological function, expands the contact interface of water and biological membrane, so that when the pollutants in the water flow through the specially designed filter layer, they can be efficiently removed by multiple purification mechanisms such as adsorption, biodegradation process and contact precipitation effect, thereby greatly reducing the pollutant content entering the rainwater discharge system.

[0028] Specifically, the thickness of the ceramic covering layer 7 is 50mm, and it is composed of ceramic particles with a diameter of 15-25mm.

[0029] Specifically, the ecological purification tank 1 is detachable, and its quantity can be adjusted according to actual needs. This means that no matter according to the specific conditions of the site space, or for different degrees of pollution, users can flexibly configure the corresponding number of ecological purification tanks 1 to meet diversified purification needs.

[0030] Specifically, the rainwater well 10 is transformed by using the existing rainwater well, the rainwater well 10 is connected with the municipal pipeline 11, and the rainwater well cover 9 is a circular grid, which can effectively intercept solid waste with large volume and ensure the smooth operation of the drainage system.

[0031] When it is raining, the rainwater flows into the ecological purification tank 1, is purified, and then enters the rainwater well 10 through the PVC perforated pipe 4; when it is raining heavily, the rainwater flows into the ecological purification tank 1, part of which is purified, enters the rainwater well 10 through the PVC perforated pipe 4, and part of which overflows and directly enters the rainwater well 10 through the rainwater well cover 9.

[0032] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. An assembled ecological purification facility for green belts, characterized in that: The facility comprises an ecological purification tank (1), the ecological purification tank (1) is connected with a rainwater well (10), the upper part of the ecological purification tank (1) is open, and the ecological purification tank (1) is internally provided with, from bottom to top, a plain soil (2), an anti-seepage geomembrane (3), a gravel drainage layer (5), a filter layer (6) and a ceramsite cover layer (7), the gravel drainage layer (5) is internally provided with a PVC perforated pipe (4), the ecological purification tank (1) is connected with the rainwater well (10) through the PVC perforated pipe (4), and the ecological purification tank (1) is provided with a retention layer (8) above.

2. The assembled ecological purification facility for green belt according to claim 1, characterized in that: The tank body of the ecological purification tank (1) is made of PVC.

3. The assembled ecological purification facility for green belt according to claim 1, characterized in that: The compaction coefficient of the plain soil (2) is greater than 0.

95.

4. The assembled ecological purification facility for green belt according to claim 1, characterized in that: The thickness of the gravel drainage layer (5) is 200 mm, and gravel with a particle size of 15-30 mm is used.

5. The assembled ecological purification facility for green belt according to claim 4, characterized in that: The filter layer (6) further comprises a limestone, pyrite, zeolite and gravel mixture.

6. The assembled ecological purification facility for green belt according to claim 1, characterized in that: The thickness of the ceramsite cover layer (7) is 50 mm, and ceramsite with a particle size of 15-25 mm is used.

7. The assembled ecological purification facility for green belt according to claim 1, characterized in that: The thickness of the retention layer (8) is 200 mm.

8. The assembled ecological purification facility for green belt according to claim 1, characterized in that: The ecological purification tank (1) is detachable, and the number of the ecological purification tanks (1) can be configured according to the site condition and pollution condition.

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