River self-purification structure

Abstract

The utility model discloses a river self-purification structure which comprises an upstream fish nest purification block used for purifying water and providing an ecological environment for aquatic animals; the ecological planting frames are filled with microporous ceramics, gravels and palm fiber mats to achieve water purification, the ecological planting frames form a stepped structure, and the downstream sightseeing fish nest purification block is used for purifying water, providing a habitat for aquatic animals and protecting a downstream riverbed; and the geotechnical cloth is used for preventing bottom silt from being scoured. The protection bed structure with the purification function is constructed, the ceramic structure, the wooden planting frame and the like which are good in ecology are adopted, the overall structure is ecological, an inhabiting environment can be provided for aquatic animals, growth of aquatic organisms and vegetation is not affected, the stepped ecological planting frame is adopted, on one hand, local water power can be improved, and on the other hand, the ecological planting frame is not damaged; on the other hand, combination of vegetation and the filler can be enhanced, the pollutant removal capacity is improved, and the river self-purification capacity is improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of in-situ water quality purification and ecological restoration of river water body, and relates to a purification structure, in particular to a river self-purification structure using ceramic with purification function to construct fish nest type bed protection block and fiber bundle, purifying river water quality and improving near-bed water power. BACKGROUND

[0002] City rivers have poor water quality and are prone to odour due to slow flow of water at the bottom of the river bed. Pollution water improvement technologies can be divided into in-situ treatment and ex-situ treatment technologies. In-situ treatment technologies mainly include bed material improvement (such as adding adsorptive fillers and covering fillers), river section shape optimization (widening the river and reducing water depth), and in-situ aeration. Ex-situ treatment technologies mainly use bypass wetland purification technology, i.e. a new artificial wetland is built beside the river, the polluted water is introduced into the artificial wetland, and the water is returned to the river after being purified by the artificial wetland.

[0003] However, the bed material improvement technology requires a large investment, and the river section shape optimization technology is difficult to implement in most cases. In-situ aeration mainly improves the surface water power condition, and the near-bottom water power is limited and the aeration device is easily damaged by water flow during the flood season. The ex-situ treatment technology requires a large land area, and the technology usually relies on the self-flow of river water into the wetland to purify the surface water, but it is difficult to purify the water near the river bed, and the maintenance cost is high.

[0004] In general, the commonly used technologies require a large investment, and the bottom water body cannot be effectively purified. UTILITY MODEL CONTENTS

[0005] To solve the above problems, the utility model provides a river self-purification structure, which uses ceramic with purification function to construct fish nest type bed protection block and fiber bundle to purify river water quality and improve near-bed water power.

[0006] To achieve the above purpose, the utility model adopts the following technical solutions:

[0007] The utility model provides a river self-purification structure, which comprises:

[0008] An upstream fish nest purification block composed of a plurality of first microporous ceramic blocks, used for purifying water quality and providing an ecological environment for aquatic animals;

[0009] A plurality of ecological planting frames filled with microporous ceramic, gravel and palm fiber mat to achieve water quality purification, the ecological planting frames form a stepped structure;

[0010] The downstream fish nest purification block is composed of a plurality of second microporous ceramic blocks, used for purifying water quality, providing a habitat for aquatic animals, and protecting the downstream riverbed;

[0011] The geotextile is arranged at the bottom of the upstream fish nest purification block, the bottom of the ecological planting frame and the bottom of the downstream fish nest purification block, and is used for preventing the bottom silt from being washed away.

[0012] The first microporous ceramic block is provided with a through hole to form a cavity, and the second microporous ceramic block is provided with an inner concave curved surface and a plurality of through holes.

[0013] As a preferred scheme of the utility model, the first microporous ceramic block includes a first face, a second face, a third face, a fourth face, a fifth face and a sixth face, the first face is symmetrical with the second face, the third face is symmetrical with the fourth face, the fifth face is symmetrical with the sixth face, the third face and the fourth face are provided with through holes, the inner concave curved surface is arranged on the fifth face and the sixth face, so that the fifth face and the adjacent sixth face form another through hole, and the fifth face and the sixth face are provided with through holes.

[0014] As a preferred scheme of the utility model, the second microporous ceramic block includes a seventh face, an eighth face, a ninth face, a tenth face, an eleventh face and a twelfth face, the seventh face is symmetrical with the eighth face, the ninth face is symmetrical with the tenth face, and the eleventh face is symmetrical with the twelfth face, the seventh face and the eighth face are provided with an inner concave notch, the eleventh face and the twelfth face are provided with an inner concave notch, so that the seventh face and the adjacent eighth face form a through hole, and the eleventh face and the adjacent twelfth face form a through hole, and the tenth face is provided with an inner concave curved surface, and a bottom through space is formed when splicing.

[0015] As a preferred scheme of the utility model, the through hole is provided with a protrusion around.

[0016] As a preferred scheme of the utility model, the ecological planting frame includes a base frame composed of longitudinally arranged rods and transversely arranged rods and a connecting rod, the connecting rod penetrates the longitudinally arranged rods and the transversely arranged rods on the same face and exceeds the bottom surface of the ecological planting frame to serve as a fixing portion, and the exceeding portion is inserted into the riverbed to fix the ecological planting frame, a plurality of transversely arranged rods are arranged to form a support plate, and the support plate is provided with ceramic particles and palm fiber pads.

[0017] As a preferred scheme of the utility model, the ecological planting frame is further provided with a separation net, and the inside of the ecological planting frame is sequentially stacked with pebbles, large-particle microporous ceramic particles, medium-particle microporous ceramic particles, gravel, small-particle microporous ceramic particles and palm fiber pads from bottom to top.

[0018] As a preferred scheme of the utility model, the pebble is 20-40cm in particle size, the large particle size micro-porous ceramic particle is 3-5cm in particle size, the particle size micro-porous ceramic particle is 1-2cm in particle size, the small particle size micro-porous ceramic particle is 0.5-1cm in particle size, and the gravel is 2-3cm in particle size.

[0019] As a preferred scheme of the utility model, the length of the fixed part is greater than or equal to 30cm.

[0020] As a preferred scheme of the utility model, the mesh diameter of the separation net is less than the particle size of the smallest filler particle.

[0021] As a preferred scheme of the utility model, the edge of the bottom of the second micro-porous ceramic block is provided with a chamfer.

[0022] Compared with the prior art, the utility model has the following beneficial effects:

[0023] 1) The utility model constructs a protective bed structure with a purification function, adopts a ceramic structure with good ecological properties, a wooden planting frame and the like, and the overall structure has ecological properties, can provide a habitat for aquatic animals, and does not affect the growth of aquatic organisms and vegetation.

[0024] 2) The utility model adopts a stepped ecological planting frame, which can improve local water dynamics on the one hand and enhance the combination of vegetation and filler on the other hand, improve the pollutant removal capacity, and improve the self-purification capacity of the river. BRIEF DESCRIPTION OF DRAWINGS

[0025] In order to more clearly illustrate the technical scheme in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiment or prior art description will be briefly introduced below, and obviously, the drawings in the following description are only some embodiments of the present application, and those skilled in the art can also obtain other drawings according to these drawings without creative labor.

[0026] Figure 1 is a schematic view of the utility model.

[0027] Figure 2 is a schematic view of the first micro-porous ceramic block.

[0028] Figure 3 is a schematic view of the upstream purification fish nest area block.

[0029] Figure 4 is a schematic view of the ecological planting frame.

[0030] Figure 5 is a sectional view of the ecological planting frame.

[0031] Figure 6is a schematic view of a second microporous ceramic block.

[0032] Figure 7 is a bottom view of the second microporous ceramic block.

[0033] Figure 8 is a schematic view of a downstream fish nest purification zone block.

[0034] In the figure, 100. Upstream fish nest purification zone block; 110. First face; 110'. Second face; 120. Third face; 120'. Fourth face; 130. Fifth face; 130'. Sixth face; 140. First through hole; 150. Second through hole; 160. Third through hole.

[0035] 200. Ecological planting frame; 210. Support plate; 212. Longitudinal rod; 213. Fixed part; 214. Transverse rod; 222. Connecting rod; 230. Pebble; 240. Large particle size microporous ceramic particle; 250. Medium particle size microporous ceramic particle; 260. Gravel; 270. Palm fiber pad; 272. Small particle size microporous ceramic particle; 273. Steel wire rope; 274. Vegetation; 275. Root system; 280. Separation net.

[0036] 300. Downstream fish nest purification zone block; 310. Seventh face; 310'. Eighth face; 320. Ninth face; 320'. Tenth face; 330. Eleventh face; 330'. Twelfth face; 340. Hole; 360. Concave curved surface; 350. Through space; 370. Chamfer; 380. Projection.

[0037] 400. Geotextile.

[0038] 500. Pine pile. DETAILED DESCRIPTION

[0039] In order to further understand the content of the present application, the present application will be described in detail in combination with the drawings and examples.

[0040] The application will be further described in detail below in conjunction with the accompanying drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the related utility model, and not to limit the utility model. In addition, it should be noted that only the parts related to the utility model are shown in the drawings for ease of description. The first, second and the like in the utility model are set for the convenience of describing the technical scheme of the utility model, and have no specific limiting effect, and are all generic, which does not constitute a limiting effect on the technical scheme of the utility model. It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict. In the description of the utility model, it should be noted that the orientation or position relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like is based on the orientation or position relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model. In addition, the terms "first", "second", "third" are only for description purposes, and cannot be understood as indicating or implying relative importance. Unless otherwise specified and limited, the terms "mounting", "connection", "connection" should be understood in a broad sense, 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, and it can be the communication between two elements inside. For ordinary skilled persons in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances. The multiple technical schemes in the same embodiment and the multiple technical schemes of different embodiments can be arranged and combined to form new technical schemes without contradiction or conflict, which are within the scope of the utility model.

[0041] The utility model provides a kind of river self-purification structure, adopt ecological good nature ceramic structure, wood planting frame etc., overall structure has ecology, can provide habitat for aquatic animals, and do not affect aquatic life and vegetation growth;Adopt ladder type ecological planting frame, one aspect can improve local water power, another aspect can enhance the combination of vegetation and filler, improve pollutant removal capacity, improve river self-purification capacity.

[0042] Example 1

[0043] Referring to Figure 1 The utility model includes upstream fish nest purification block 100, ecological planting frame 200, downstream fish nest purification block 300 and geotextile 400.

[0044] Geotextile 400 is laid under fish nest purification block 100, ecological planting frame 200 and lower fish nest purification block 300 to prevent soil loss.

[0045] Upstream purification fish nest block 100 is a combination structure of multiple desulfurization and denitrification microporous ceramic blocks. On one hand, the internal cavities provide habitat for aquatic animals. On the other hand, the microporous ceramic structure has a large specific surface area, which can adsorb sulfur compounds, ammonium ions and nitrate ions in the water body. At the same time, it provides an attachment carrier for microorganisms (aerobic microorganisms and anaerobic microorganisms). Aerobic microorganisms can convert ammonium ions into nitrate ions through aerobic reaction. Anaerobic microorganisms convert nitrate ions into harmless nitrogen gas through anaerobic reaction, thereby achieving water purification. The sulfur compounds adsorbed by microporous ceramics can provide energy sources for microorganisms and maintain microbial activity.

[0046] Ecological planting frame 200 has a stepped structure at the top, which is filled with small particle size ceramic particles 272 and palm fiber mat 270. The stepped structure is maintained by pine stakes 500, which locally form a height difference to improve river hydrodynamics. At the same time, nitrogen and phosphorus are removed by plants and microporous ceramic particles.

[0047] Downstream purification fish nest block 300 is also a combination structure of multiple desulfurization and denitrification microporous ceramic blocks, which provides a carrier for microorganisms, provides habitat space for aquatic animals, and adsorbs pollutants. In addition, as a riverbed protection layer, it prevents the ecological planting frame 200 from being eroded by the riverbed.

[0048] Microporous ceramics are formed by sintering a mixture of silica and loess to form a porous structure with pore sizes reaching the micron level.

[0049] As shown in Figure 2 With Figure 3 The monomer structure of upstream purification fish nest block 100 is hexahedral, including first face 110 and second face 110', third face 120 and fourth face 120', fifth face 130 and sixth face 130' are symmetrical to each other. Among them, first through hole 140 and second through hole 150 are respectively arranged on third face 120 and fourth face 120', fifth face 130 and sixth face 130', so as to form a cavity inside fish nest block 100 and communicate with the outside water body. In addition, fifth face 130 and sixth face 130' are provided with concave curved surfaces, so that when fish nest block 100 is spliced, third through hole 160 is formed between first face 110 and second face 110'. Therefore, for fish nest block 100, six faces are provided with through holes.

[0050] As shown in Figure 4-5As shown, the ecological planting frame 200 is composed of a base frame formed by the longitudinal rods 212 (in the direction of the water flow) and the transverse rods 214 (perpendicular to the direction of the water flow) stacked alternately; the support plate 210 is arranged by using a plurality of transverse rods 214 to fill the ceramic particles and the palm fiber pad 270.

[0051] The connecting rods 222 are used to link the longitudinal rods 212 and the transverse rods 214, and the excess part of the connecting rods 222 is used as a fixing part 213 inserted into the riverbed to increase the stability of the ecological planting frame 200, and the length of the fixing part 213 is not less than 30 cm.

[0052] The inside ground and the periphery of the ecological planting frame 200 are paved with a separation net 280, and the mesh diameter of the net is smaller than the minimum particle size of the filler, which can prevent the internal filling matrix from leaking out of the gap of the ecological planting frame 200; the net is stacked from bottom to top by the pebbles 230, the large-particle-size microporous ceramic particles 240, the medium-particle-size microporous ceramic particles 250, the gravel 260, the small-particle-size microporous ceramic particles 272, and the palm fiber pad 270. Among them, the particle size of the pebbles 230 is between 20-40 cm, which is mainly used to increase the weight of the bottom of the ecological planting frame 200 and increase the stability. The particle size of the large-particle-size microporous ceramic particles 240 is between 3-5 cm, the particle size of the medium-particle-size microporous ceramic particles 250 is between 1-2 cm, and the particle size of the small-particle-size microporous ceramic particles 272 is between 0.5-1 cm, which are all used to provide an attachment carrier for microorganisms to adsorb organic matter, ammonium ions, and nitrate ions. The particle size of the gravel 260 is between 2-3 cm, which is used to adsorb organic matter, ammonium ions, and nitrate ions in the water body.

[0053] The palm fiber pad 270 is made of palm fiber as a material to form a porous net, and the mesh diameter of the net is smaller than the particle size of the small-particle-size microporous ceramic particles 272, which is wrapped around the small-particle-size microporous ceramic particles 272 to form a strip-shaped pad suitable for the growth of vegetation. The palm fiber pad 270 is fixed by being bound with the ecological planting frame 200 by a steel wire rope 273. The root system 275 of the vegetation 274 is located inside the palm fiber pad 270, and the root system 275 can penetrate the palm fiber pad 270 to enter the internal filler of the ecological planting frame 200, which can promote the growth of microorganisms and improve the purification efficiency.

[0054] As shown in Figure 6-8 The downstream purification fish nest block 300 is also a hexahedron composed of microporous ceramic blocks. The seventh face 310 and the eighth face 310', the ninth face 320 and the tenth face 320', and the eleventh face 330 and the twelfth face 330' are symmetrical to each other. The seventh face 310 and the eighth face 310', and the eleventh face 330 and the twelfth face 330' are provided with concave notches, so that when the purification blocks 300 are spliced two by two, a hole 340 is formed which penetrates up and down.

[0055] As shown in Figure 7As shown, the tenth surface 320' is provided with a concave curved surface 360, so as to form a through space 350 at the bottom of the purification block 300. A chamfer 370 is provided at the edge of the structure bottom, which is beneficial to avoid the water animals from being hurt when entering or leaving.

[0056] A protrusion 380 is provided around the hole 340, which provides support for the plant stem.

[0057] The above description of the present application and its embodiments is illustrative, and is not restrictive, and the embodiments shown in the drawings are only one of the embodiments of the present application, and the actual structure is not limited thereto. Therefore, if a person skilled in the art is inspired by the above description, and without departing from the creative spirit of the present application, similar structural modes and embodiments can be designed without creativity, which should all belong to the protection scope of the present application.

Claims

1. A river self-purification structure, characterized by comprising: The application relates to a fish nest purification block, which comprises the following parts: an upstream fish nest purification block composed of a plurality of first microporous ceramic blocks and used for purifying water and providing an ecological environment for aquatic animals; a plurality of ecological planting frames which are filled with microporous ceramics, gravel and palm fiber mats to purify water, and form a ladder-shaped structure; a downstream fish nest purification block composed of a plurality of second microporous ceramic blocks and used for purifying water, providing a habitat for aquatic animals and protecting a downstream riverbed; and geotextiles arranged at the bottom of the upstream fish nest purification block, the bottom of the ecological planting frames and the bottom of the downstream fish nest purification block and used for preventing the bottom silt from being washed away. The first microporous ceramic block comprises a first surface, a second surface, a third surface, a fourth surface, a fifth surface and a sixth surface, the first surface is symmetrical to the second surface, the third surface is symmetrical to the fourth surface, the fifth surface is symmetrical to the sixth surface, through holes are arranged on the third surface and the fourth surface, and the concave curved surface is arranged on the fifth surface and the sixth surface, so that the fifth surface and the adjacent sixth surface form another through hole. The second microporous ceramic block comprises a seventh surface, an eighth surface, a ninth surface, a tenth surface, an eleventh surface and a twelfth surface, the seventh surface is symmetrical to the eighth surface, the ninth surface is symmetrical to the tenth surface, and the eleventh surface is symmetrical to the twelfth surface; the seventh surface and the eighth surface are provided with concave notches, the eleventh surface and the twelfth surface are provided with concave notches, so that the seventh surface and the adjacent eighth surface form a through hole, and the eleventh surface and the adjacent twelfth surface form a through hole; and the tenth surface is provided with a concave curved surface, and the concave curved surfaces are connected to form a through space at the bottom. The through hole is provided with a protrusion around the through hole. The ecological planting frame comprises a base frame formed by the interlaced stacking of longitudinal rods and transverse rods and a connecting rod which penetrates the longitudinal rod and the transverse rod on the same surface and exceeds the bottom surface of the ecological planting frame to serve as a fixing part, the exceeding part is inserted into the riverbed to fix the ecological planting frame, a plurality of transverse rods are arranged to form a support plate, and the support plate is provided with ceramic particles and palm fiber mats. The ecological planting frame is further provided with a separation net, and the inside of the ecological planting frame is sequentially stacked with pebbles, large-particle microporous ceramic particles, medium-particle microporous ceramic particles, gravel, small-particle microporous ceramic particles and palm fiber mats from bottom to top.

2. A river self-cleaning structure according to claim 1, characterized in that, The particle size of the pebbles is 20-40 cm, the particle size of the large-particle microporous ceramic particles is 3-5 cm, the particle size of the medium-particle microporous ceramic particles is 1-2 cm, the particle size of the small-particle microporous ceramic particles is 0.5-1 cm, and the particle size of the gravel is 2-3 cm.

3. The river self-cleaning structure according to claim 1, characterized in that, The length of the fixing part is greater than or equal to 30 cm.

4. A river self-cleaning structure according to claim 3, characterized in that, The mesh diameter of the separation net is smaller than the particle size of the smallest filler particles.

5. The river self-cleaning structure according to claim 1, characterized in that, The edge of the bottom of the second microporous ceramic block is provided with a chamfer.

6. A river self-cleaning structure according to claim 5, characterized in that ​ 7. A river self-cleaning structure according to claim 5, characterized in that, ​ 8. A river self-cleaning structure according to claim 5, characterized in that, ​ 9. The river self-cleaning structure according to claim 6, characterized in that, ​ 10. A river self-cleaning structure according to any one of claims 1-9, characterized in that, ​

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