CN212375123U

CN212375123U - Ecological water filtering dam for river channel treatment

Info

Publication number: CN212375123U
Application number: CN202020893827.0U
Authority: CN
Inventors: 林静伟; 曾森涛; 吴立煌; 周远; 余培芸
Original assignee: Shantou Hongdong Environment Treatment Co ltd
Current assignee: Shantou Hongdong Environment Treatment Co ltd
Priority date: 2020-05-25
Filing date: 2020-05-25
Publication date: 2021-01-19
Anticipated expiration: 2030-05-25

Abstract

The utility model provides an ecological water filtering dam for river course is administered, adopt pine stake to construct the both sides limit of dam body, the pine stake of dam body side is even interval distribution, adopt galvanized copper wire net to construct the dam body bottom between the pine stake of both sides limit, fill in the dam body and filter the filler, filter the filler and lay first filler, second filler, third filler for the dam body bottom from bottom to top in proper order, one deck galvanized copper wire net is all laid above every layer of filler, filter and lay microorganism packing layer above the filler, and arrange the biological ribbon; and four corners of the dam body are fixed by cement anchors above the filter filler, and four edges of the dam body are connected and fixed by bamboo battens and the cement anchors. The utility model discloses the good growing environment of an animal, microorganism can be artificially built to the ecological drainage dam that founds, improves the self-purification ability of water to restore water ecosystem, realize natural ecological balance. The river course polluted water body can be purified, the flood discharge and water discharge functions of the river course are guaranteed, and the river course is more ornamental and ecological.

Description

Ecological water filtering dam for river channel treatment

Technical Field

The utility model relates to a river pollution administers technical field, refers in particular to an ecological water filtering dam for river administers.

Background

With the rapid development of economy in China, the urbanization process is accelerated, the population of a basin is increased, the life of substances is continuously promoted, the pace of industrial development is rapidly advanced, the discharge amount of industrial wastewater and domestic sewage is increased day by day, more and more water bodies containing pollutants and suspended matters enter a river channel through different ways and exceed the capacity of rivers and lakes, the rivers and lakes are polluted to different degrees, various water environment problems follow up, the ecological balance of the river channel water is broken, the water bodies are turbid, a large amount of algae grows, the transparency of the water bodies is continuously reduced, and the living conditions of aquatic animals and plants are threatened. The ecological system is damaged, so that the problem of basin water pollution is increasingly serious. Many watercourses even appear as seasonal or year-round black and odorous bodies of water.

The polluted water body not only causes poor landscape effect of the river channel and the lake, but also generates harm to the natural environment; the living environment of residents is disturbed, and the quality of the living environment of people is reduced; the appearance of the city is damaged, and the city development is seriously influenced. With the growing awareness of ecological environment, the regulation of rivers and lakes is receiving more attention in recent years.

At present, the existing ecological dam structure has the following three types, and the specific defects are as follows:

(1) the earth work dam is a building for intercepting river channel water flow to raise water level or adjust flow, and due to the fact that the impermeable membrane is laid, the effect of completely blocking water is achieved, the river channel water flowing section is reduced, river channel drainage is unsmooth in a rainy period, flood discharge is affected, and even urban waterlogging can be caused seriously.

(2) The common ecological dam depends too much on the purification effect of single plants and microorganisms on river water or the physical adsorption of filling materials on pollutants in water. Under the condition that river water is polluted seriously or in winter with low temperature, the plants stop growing or even die completely, so that the water body can not be purified, and the water body pollution can be aggravated by roots and stems of the plants which are not cleaned in time. And the filtration system is easily blocked by silt, leads to the water velocity slow, influences the water discharge flood discharge function in the water course easily in flood period.

(3) The ammonia nitrogen and the total phosphorus dissolved in the water cannot be effectively degraded by purely depending on the physical adsorption of the filling material on the pollutants in the water. Patent CN 205062751U discloses an ecological water filtering dam with stable water permeability, and the upstream side of this water filtering dam body is the permeable dam, and the downstream side is the concrete dam, and the bottom of concrete dam is equipped with drainage channel and links to each other with the permeable dam, and the domatic upper berth in the upper reaches of permeable dam is equipped with the permeable membrane for block plankton, alga or silt etc. in aquatic. The technology adopts a physical filtration method to treat river water, and has the defect that pollutants such as ammonia nitrogen, total phosphorus and the like dissolved in water cannot be subjected to multiple treatment.

Disclosure of Invention

An object of the utility model is to existing technical current situation, provide an ecological water filtering dam for river course is administered, can receive the pollution water body to the river course and carry out purification treatment to and guarantee river course flood drainage function.

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

the utility model relates to an ecological water filtering dam for river course is administered, adopt pine stake to construct the both sides limit of dam body, the pine stake of dam body side is even interval distribution, adopt galvanized copper wire net to construct the dam body bottom between the pine stake of both sides limit, fill in the dam body and filter the filler, filter the filler and lay first filler, second filler, third filler for the dam body bottom from bottom to top in proper order, one deck galvanized copper wire net is all laid above every layer of filler, filter and lay microorganism packing layer above the filler, and arrange the biological ribbon; and four corners of the dam body are fixed by cement anchors above the filter filler, and four edges of the dam body are connected and fixed by bamboo battens and the cement anchors.

In the scheme, one end of the pine pile is cut into a taper shape, the depth of the pine pile driven into the mud bottom layer is required to be more than 2.5m, and the height of the pine pile is 40cm higher than that of the filter filler.

Furthermore, each pine pile is spaced 8-10cm apart.

Furthermore, the particle size of each layer of filler in the filter filler is gradually reduced from the bottom of the dam body to the top layer by layer.

Preferably, the aperture of the galvanized copper wire mesh is less than 6 mm.

Further, the first filler is a crushed stone layer, the second filler is a gravel layer, and the third filler is a zeolite layer.

The utility model has the advantages that: the ecological water filtering dam is one of water body in-situ restoration technologies, carries out in-situ purification treatment on polluted river water bodies needing to be treated, reduces pollutants such as suspended matters, COD, TN, TP and the like in the water, improves the self-purification capacity of the water bodies, and accordingly restores an aquatic ecosystem. Meanwhile, the ecological flood fighting agent has the characteristics of certain flood fighting strength, landscape property, stability, biological diversity protection and the like. When river water passes through the filtering dam, suspended matters in the water are intercepted through a filtering medium formed by fillers at all levels of the filtering dam body, and meanwhile, a microbial film formed in the running process of a biological streamer arranged on the filtering dam can adsorb and decompose organic matters in the water and reduce the content of pollutants such as ammonia nitrogen, total phosphorus and the like, so that the turbidity of the water passing through the filtering dam is reduced, and the water quality index is improved; through the packing layer of different apertures of layering arrangement, provide stable attached surface for the growth of microorganism, when polluting water and flowing through the packing layer, can take place physical and chemical reactions such as absorption, filtration, complex reaction, ion exchange, continuously get rid of various pollutants in the water. The constructed ecological water filtering dam can artificially create a good growth environment for animals and microorganisms, and improve the self-purification capacity of the water body, thereby restoring the water ecosystem and realizing natural ecological balance. The river course polluted water body can be purified, the flood discharge and water discharge functions of the river course are guaranteed, and the river course is more ornamental and ecological.

Description of the drawings:

FIG. 1 is a schematic top view of the present invention;

fig. 2 is a schematic cross-sectional view of the present invention.

The specific implementation mode is as follows:

please refer to fig. 1 and fig. 2, which are schematic structural diagrams of the preferred embodiment of the present invention, the present invention relates to an ecological water filtering dam for river regulation, which adopts pine piles 1 to construct both sides of the dam, i.e. the dam is constructed along the width of the river, the pine piles 1 on the side of the dam are evenly spaced, the pine piles 1 are 4m long, the diameter is 150 ± 30mm, one end of each pine pile is cut into a taper shape, the depth of the soil bottom layer needs to be larger than 2.5m, the pine piles 1 are higher than the filter filler 40cm, and are 10cm higher than the conventional water level, but lower than the flood water level, so as to mainly ensure that the upstream garbage can be intercepted in dry seasons, and the water lettuce and the like, thereby ensuring the normal water passing of the river. The interval between every two pine piles 1 is 8-10cm, the width of the dam body is about 2m generally, and the interval between every two pine piles 1 can be adjusted according to the river width.

Adopt galvanized copper wire net to establish the dam body bottom between the pine stake 1 on both sides limit, the galvanized copper wire net with pine stake 1 junction bind fixedly with the galvanized copper wire can, the galvanized copper wire can be corrosion-resistant, toughness is strong, non-deformable and durable. The dam body is filled with filter filler, the filter filler is formed by sequentially laying a first filler 8, a second filler 7 and a third filler 6 at the bottom of the dam body from bottom to top, wherein the first filler 8 is a gravel layer, the second filler 7 is a gravel layer, and the third filler 6 is a zeolite layer. And a layer of galvanized copper wire mesh is laid above each layer of filler, so that the stability of the stacked structure of the filler layers is enhanced. The aperture of the galvanized copper wire mesh is smaller than 6mm, and the phenomenon that all stone layers are mixed with each other can be avoided.

The particle size of each layer of filler in the filter filler is gradually reduced from the bottom of the dam body to the top layer by layer, and the bottommost part of the filler is filled with a crushed stone layer with the particle size of 30-50 mm and the height of 300 mm; the middle layer is filled with a gravel layer with the particle size of 20-40 mm and the height of 300 mm; the top is filled with the zeolite layer with the particle size of 10-20 mm and the height of 400mm, and the filtration filler with different apertures is arranged in a layered manner, so that a stable attachment surface is provided for the growth of microorganisms, and the height of the filtration filler is 30cm lower than the normal water level, thereby reducing the influence of the dam body on the flood drainage and waterlogging of the river channel. When the polluted water flows through the filter filler, physical and chemical reactions such as adsorption, filtration, complex reaction, ion exchange and the like can be generated, and various pollutants in the water can be continuously removed.

The microbial filler layer with the height of 100mm is laid above the filter filler, the biological streamer 3 with the length of 200mm is arranged above the microbial filler layer, pollutants in river water are degraded by using microbes, bacteria and microbes can be attached to the microbial filler layer and the biological streamer 3 to grow and hang membranes, and the formed biological membranes can continuously purify the water body. Through a physical filtration-biological purification combined treatment technology, the advantages of the biological filtration-biological purification combined treatment technology are complemented, and the treatment effect of the polluted water body is enhanced.

And four corners of the dam body are fixed by adopting cement anchors 5 above the filter filler, and four edges of the dam body are connected and fixed by adopting bamboo battens 4 and the cement anchors 5, so that the structure of the dam body in the pine pile 1 is stable. In addition, the microbial filler layer and the biological streamer 3 can be arranged in sections along the length (width) direction of the dam body, and bamboo strips can be adopted to separate the sections, so that the structure of the dam body is further reinforced.

And each layer of filler of the ecological water filtering dam can be replaced according to the turbidity degree of the water body and the types and content of pollutants in the water. Alternative materials include, but are not limited to, volcanic rock, cobblestones, coal slag, coke, quartz sand, activated carbon, expanded aluminosilicates, and the like.

Of course, the above illustration is only a preferred embodiment of the present invention, and the scope of the present invention is not limited thereto, so all equivalent changes made in the principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides an ecological water filtering dam for river course is administered which characterized in that: the method comprises the steps that pine piles (1) are used for constructing two side edges of a dam body, the pine piles (1) on the side edges of the dam body are uniformly distributed at intervals, galvanized copper wire nets are used between the pine piles (1) on the two side edges for constructing the bottom of the dam body, filtering fillers are filled in the dam body, the filtering fillers are a first filler (8), a second filler (7) and a third filler (6) which are sequentially laid on the bottom of the dam body from bottom to top, one galvanized copper wire net is laid above each layer of filler, a microorganism filler layer is laid above the filtering fillers, and biological ribbons (3) are arranged; and four corners of the dam body are fixed by cement anchors (5) above the filter filler, and four edges of the dam body are connected and fixed by bamboo battens (4) and the cement anchors (5).

2. The ecological filter dam for river regulation of claim 1, wherein: one end of the pine pile (1) is cut into a taper shape, the depth of the pine pile (1) driven into the mud bottom layer is required to be more than 2.5m, and the height of the pine pile (1) is 40cm higher than that of the filter filler.

3. An ecological filter dam for river regulation according to claim 1 or 2, wherein: the space between every two pine piles (1) is 8-10 cm.

4. The ecological filter dam for river regulation of claim 1, wherein: and the grain diameter of each layer of the filler in the filter filler is gradually reduced from the bottom of the dam body to the upper layer by layer.

5. An ecological filter dam for river regulation according to claim 1 or 4, wherein: the aperture of the galvanized copper wire mesh is smaller than 6 mm.

6. The ecological filter dam for river regulation of claim 1, wherein: the first filler (8) is a crushed stone layer, the second filler (7) is a gravel layer, and the third filler (6) is a zeolite layer.