CN210340475U

CN210340475U - Ecological ditch

Info

Publication number: CN210340475U
Application number: CN201920632738.8U
Authority: CN
Inventors: 宗兵年; 汪正霞; 马清萍; 张念慈; 韦联平
Original assignee: Shanghai Tongrui Environmental Protection Sci & Tech Co ltd
Current assignee: Jiaxing Huajun Ecological Technology Co.,Ltd.; SHANGHAI TONGRUI ENVIRONMENTAL PROTECTION SCI. & TECH. Co.,Ltd.
Priority date: 2019-05-05
Filing date: 2019-05-05
Publication date: 2020-04-17
Anticipated expiration: 2029-05-05

Abstract

The utility model discloses an ecological ditch, including ditch body, closely laminate the adsorbed layer on the ditch body, band steel and screw for fixing the adsorbed layer, the ditch body includes two lateral walls, two lateral walls bottom relatively extend along the horizontal direction and form ditch body bottom surface, the adsorbed layer includes smooth layer and the high density fiber layer with lateral wall and bottom surface contact from inside to outside in proper order, the lateral wall all is equipped with the band steel every two meters along its length direction, the bottom surface all is equipped with the band steel every two meters along its length direction, the screw passes band steel and adsorbed layer and lateral wall and bottom surface fixed connection in proper order; the utility model has the advantages of simple structure, reasonable in design guarantees that ditch inner wall structure is firm, and the maintenance cost is less, moreover on the basis that does not change original civil engineering, the purifying effect of very big degree improvement quality of water.

Description

Ecological ditch

Technical Field

The utility model belongs to the technical field of the water treatment, especially, relate to an ecological irrigation canals and ditches.

Background

The ecological ditch is a farmland ditch ecological system which has a certain width and depth, consists of water, soil and organisms, has a unique structure and exerts corresponding ecological functions, and is also called as a farmland ditch wetland ecological system. The ecological ditch can reduce water and soil loss and reduce the content of nitrogen and phosphorus in surface water by a series of actions of silt interception, soil adsorption, plant absorption, biodegradation and the like.

The conventional ecological ditch mainly comprises an engineering part and a biological part, wherein the biological part comprises plants planted at the bottom of the ditch and on two sides of the ditch so as to achieve the absorption of nitrogen and phosphorus, but the conventional ecological ditch has the following problems: planting submerged/emergent aquatic plants easily causes the excessive growth of aquatic weeds, influences the normal flow of ditches and riverways, requires a large amount of manpower and material resources for aquatic weed harvesting, and the roots of the plants easily damage the trench wall civil engineering structure.

In view of this, the present invention is especially provided.

SUMMERY OF THE UTILITY MODEL

To the problem that exists among the prior art, the utility model aims at providing an ecological irrigation canals and ditches, simple structure, reasonable in design guarantees that irrigation canals and ditches inner wall structure is firm, and the maintenance cost is less, moreover on the basis that does not change original civil engineering, the purifying effect of very big degree improvement quality of water.

In order to realize the above-mentioned purpose, the utility model provides a pair of ecological irrigation canals and ditches, include irrigation canals and ditches body and closely laminate the adsorbed layer on the irrigation canals and ditches body, the irrigation canals and ditches body includes two lateral walls, two the lateral wall bottom extends formation irrigation canals and ditches body bottom surface along the horizontal direction relatively, the adsorbed layer from interior to exterior includes smooth layer and the high density fibre layer with lateral wall and bottom surface contact in proper order.

Preferably, the adsorption bed further comprises flat steel and screws, the side walls are provided with the flat steel every two meters along the length direction of the side walls, the bottom surface is provided with the flat steel every two meters along the length direction of the bottom surface, and the screws sequentially penetrate through the flat steel and the adsorption layer to be fixedly connected with the side walls and the bottom surface;

preferably, the high-density fiber layer is a biological blanket with a large specific surface area, a burr filter cloth, a fiber filter cloth, an iron wool filter cloth or a wool filtering fiber filter cloth;

preferably, the cross section of the ditch body is in an inverted trapezoid or square shape;

preferably, the flat steel is provided with a plurality of threaded holes matched with the screws along the length direction;

preferably, the screw is an expansion screw.

The utility model provides a pair of ecological irrigation canals and ditches has following beneficial effect:

simple structure, reasonable in design on the basis that does not change original civil engineering, lays the big adsorbed layer of specific surface area in original cement channel inboard, and when the irrigation canals and ditches body can be realized hugging closely to the smooth layer, reduce and the irrigation canals and ditches body between frictional force, increase the life of irrigation canals and ditches body. And when the water flows through the high-density fiber layer, particles in the water can be intercepted, the concentration of suspended particles in the water is reduced, and the water quality is purified while water flows through the water purification device. Plant seeds in the water body grow on the surface of the water body, and nitrogen, phosphorus and other substances in the agricultural wastewater are degraded. The problem that in the prior art, the ditches are blocked or the civil structure of the ditches is damaged due to the fact that plants and trees grow disorderly is effectively avoided, the inner wall structure of the ditches is guaranteed to be stable, the ditches are attractive, and the maintenance cost is low. Meanwhile, the high-density fiber layer is made of a material with large specific surface area and thick surface fibers, so that a carrier is provided for microorganism adhesion, and water quality is purified while water flows pass through the carrier.

Drawings

Fig. 1 is a schematic structural view of the ecological ditch of the present invention, wherein the cross section of the ditch body is inverted trapezoid.

Fig. 2 is a schematic structural view of the ecological ditch of the present invention, wherein the cross section of the ditch body is square.

Fig. 3 is a material laying development diagram of the ecological ditch.

In the figure:

1. the ditch comprises a ditch body 2, a smooth layer 3, a high-density fiber layer 4, a side wall 5, a bottom surface 6, flat steel 7 and an expansion screw.

Detailed Description

The present invention will be further described with reference to the following specific embodiments and accompanying drawings to facilitate understanding of the present invention.

As shown in fig. 1-3, for the utility model provides an ecological ditch, including ditch body 1, closely laminate in the adsorbed layer on ditch body 1, be used for fixed adsorbed layer's band steel 6 and screw 7. The cross section of the ditch body 1 is in an inverted trapezoid or square shape, the ditch body 1 comprises two side walls 4, the bottoms of the two side walls 4 oppositely extend along the horizontal direction to form a bottom surface 5 of the ditch body 1, the adsorption layer sequentially comprises a smooth layer 2 and a high-density fiber layer 3 which are contacted with the side walls 4 and the bottom surface 5 from inside to outside, the smooth layer 2 is made of conventional materials in the prior art, the friction force between the smooth layer 2 and the ditch body 1 can be reduced while the smooth layer is tightly attached to the ditch body 1, and the service life of the ditch body 1 can be prolonged; the high-density fiber layer 3 is a biological blanket with large specific surface area, a burr filter cloth, a fiber filter cloth, an iron wool filter cloth or a wool filtering fiber filter cloth, the surface fiber is thicker and provides a carrier for microorganism adhesion, and the water quality is purified while water flows pass through; the smooth layer 2 and the high-density fiber layer 3 are connected through conventional connecting modes such as embedding connection, weaving or bonding. The side wall 4 all is equipped with the band steel 6 every two meters along its length direction, bottom surface 5 all is equipped with the band steel 6 every two meters along its length direction, the band steel 6 respectively with the side of side wall 4 and bottom surface 5 mutually perpendicular set up and length slightly is less than the width of side wall 4 and bottom surface 5, the band steel 6 is equipped with a plurality ofly along its length direction with screw 7 assorted screw hole, the screw adopts expansion screw 7, expansion screw 7 passes band steel 6, high density fiber layer 3 and smooth layer 2 and side wall 4 and bottom surface 5 fixed connection in proper order.

In order to compare the effect of this ecological irrigation canals and ditches, this paper compares the unified trilateral light irrigation canals and ditches of specification, foraminiferous cement irrigation canals and ditches, vegetation irrigation canals and ditches of difference under to natural condition the utility model provides a cross-section is compared for the effect of the ecological irrigation canals and ditches of square, high density fibre layer material for biological blanket, and the specification of irrigation canals and ditches is 100m for length, 1 meter wide, and the depth of water 80cm, and the experimental time is 30 days, and wherein, the surface area that the area was laid to the vegetation in the vegetation irrigation canal. The changes in ammonia nitrogen, total nitrogen and total phosphorus were detected according to the method in Water and wastewater monitoring analysis method (fourth edition), and the experimental results were as follows:

type of trench	Three-sided light ditch	Cement ditch with holes	Vegetation ditch	This example
					Ammonia nitrogen removal (%)	10	28	65	70
Total nitrogen removal (%)	8	36	62	68
					Total phosphorus removal (%)	12	45	71	79

The result shows, the utility model provides an ecological ditch, to ammonia nitrogen, total nitrogen and total phosphorus's clearance and the purification treatment effect of quality of water be higher than other three kinds of ditches far away, through addding the high density fibre layer, but can make when polluting the material surface that the water flow is big at this specific surface area fast reoxygenation, the indigenous microorganism attached to its surface can decompose the organism in the water of flow-through to can oxidize the ammonia nitrogen, purify quality of water better.

The utility model discloses utilize crisscross densely covered cement irrigation canals and ditches in original farmland, carry out the ecological transformation. At present, domestic agricultural irrigation canals and ditches belong to the cement irrigation canals and ditches more, take into account the degree of depth and the width of farmland irrigation canals and ditches, the utility model discloses lay the one deck adsorbed layer on irrigation canals and ditches body 1, high density fibre layer 3 chooses for use the material that specific surface is big, like biological blanket or strain hair fibre filter cloth. When the polluted water body flows through the surface of the material with large specific surface area, the oxygen can be quickly reoxidized; the indigenous microorganisms attached to the surface of the biological blanket can decompose the organic matters in the water body and oxidize ammonia nitrogen; after a period of time, the biological blanket also contains algae which grows sessilely and absorbs nitrogen and phosphorus nutrients in the water. Through the laying of the biological blanket and the guided restoration of the submerged plants at the bottom, a perfect plant-microorganism-small aquatic organism ecosystem is constructed, organic matters and ammonia nitrogen in water can be effectively removed, and the pollution caused by farmland water withdrawal is reduced.

The present invention has been described in detail with reference to specific embodiments, and the description of the embodiments is only for the purpose of helping understanding the core idea of the present invention. It should be understood that any obvious modifications, equivalents and other improvements made by those skilled in the art without departing from the spirit of the present invention are intended to be included within the scope of the present invention.

Claims

1. The utility model provides an ecological ditch, its characterized in that includes the ditch canal body and closely laminates the adsorbed layer on the ditch canal body, the ditch canal body includes two lateral walls, two the lateral wall bottom extends formation ditch canal body bottom surface along the horizontal direction relatively, adsorbed layer from interior to exterior includes in proper order with smooth layer and the high density fibre layer of lateral wall and bottom surface contact.

2. The ecological ditch of claim 1, further comprising flat steel and screws, wherein the side walls are provided with flat steel every two meters along the length direction thereof, the bottom surface is provided with flat steel every two meters along the length direction thereof, and the screws sequentially penetrate through the flat steel and the adsorption layer to be fixedly connected with the side walls and the bottom surface.

3. The ecological ditch of claim 1, wherein the high-density fiber layer is a bio-blanket with a large specific surface area, a burred filter cloth, a fiber filter cloth, an iron wool filter cloth or a wool filtering fiber filter cloth.

4. The ecological canal of claim 1, wherein the cross section of the canal body is an inverted trapezoid or a square.

5. The ecological ditch of claim 2, wherein the flat steel is provided with at least two screw holes along its length for matching with the screws.

6. The ecological canal of claim 5, wherein the screw is an expansion screw.