Flexible string-shaped ecological floating island device and application method thereof
Technical Field
The invention relates to the field of polluted water purification, in particular to a flexible string-shaped ecological floating island device and an application method thereof.
Background
The non-point source pollution of the water body refers to pollution caused by pollutants entering a receiving water body due to natural precipitation and human dispersed and random water use activities. The method mainly derives from the influence of rapid development of economy and human activities, a large amount of pollutants carried by surface runoff, point source discharge of polluted water bodies and the like are discharged into natural water bodies, the nitrogen and phosphorus content of the water bodies exceeds the standard, water body eutrophication is caused, and a large amount of substances which are difficult to degrade and easy to damage organisms such as organic pollutants, heavy metals and the like enter the water bodies, so that the water quality and the environment are deteriorated.
The measures for controlling the non-point source pollution of the water body can be divided into 3 aspects: firstly, the source is controlled, mainly the pollutants which have potential harm to the water body are controlled, and the runoff pollutants are controlled to the minimum from the source; secondly, controlling the pollutant diffusion way, and reducing the pollutant discharge amount into the water body by taking measures through researching the runoff pollutant conveying and diffusion mechanism; and thirdly, the terminal is treated, pollutants brought into a water body are degraded through a natural ecological technology or an artificial purification technology, a source region-migration-sink treatment chain mode is formed on a flow domain scale, purification is carried out from a source, interception is carried out layer by layer, and a good effect can be achieved.
The existing common artificial water ecological restoration means mainly aims at water quality purification, and utilizes eutrophication substances such as nitrogen and phosphorus, organic matters and the like absorbed in the plant growth process to artificially build a water plant planting platform for ecological restoration and other means. It still has some problems and disadvantages:
1. the existing floating island technology mainly cultivates plants, although the plants can absorb and utilize substances such as nitrogen and phosphorus in a water body, the plants can only be absorbed and treated on the surface layer of the water body, and the underwater treatment in the depth direction is lacked, so that the existing floating island technology has certain defects in the treatment range.
2. The existing floating island floats on the water surface, daily management is completed on the water surface, most of the daily management is completed manually, the plants need to be harvested and replaced in time, and the development of the plants is limited due to time and labor consumption.
3. Most of the existing floating islands float on the surface layer of a water body, are mostly applied to static or slow-flow water bodies, and are not applied to rivers with high flow velocity of the water body.
In addition, the existing materials applied to water body purification mainly comprise:
1. an organic polymer material. At present, organic polymer materials are widely used in water purification, but the carrier has a small specific surface area, is not beneficial to microbial biofilm formation, is similar to common foam materials and the like, and has the problems of low strength, easy damage, easy secondary pollution after being discarded and the like, so the application is limited.
2. An inorganic support material. The inorganic material is environment-friendly, high in benefit and more valuable in application. Inorganic materials such as vermiculite, expanded perlite, porous ceramics, pumice, biomass carbon, and the like are often used as matrix materials. But also has the disadvantages that the vermiculite and the pumice have small specific gravity and a plurality of pores, are suitable for the attachment and growth of microorganisms, but can sink after being soaked for a long time and lose the function of a floating island; the expanded perlite is a novel material with light weight and multiple functions, but the structural strength of the expanded perlite is small; the porous ceramic has small density, large specific surface area and good adsorption performance, is suitable for the attachment growth of microorganisms, but has complex manufacturing process and higher manufacturing cost, and is difficult to use on a large scale; the biomass carbon is light, porous and strong in adsorption, but has loose structure, weak strength and high cost, and is difficult to popularize and apply. Although the prior art and related materials can effectively treat the problem of non-point source pollution of water bodies, in specific practical application, a plurality of defects and limitations still exist.
Therefore, the related art still needs to be innovated and developed.
Disclosure of Invention
In view of the defects of the prior art, the invention aims to provide a flexible string-shaped ecological floating island device and an application method thereof, and aims to solve the problems that the treatment area of the original water body non-point source purification device is limited to surface water, the efficiency is not high, the microbial film is difficult to form, the manufacturing process is complex, secondary pollution is easy to generate, the manufacturing cost is high and the like.
The technical scheme of the invention is as follows:
the utility model provides an ecological chinampa device of flexible cluster form is including flexible basal disc, wherein, flexible basal disc is the umbrella structure of rectangle, fixedly connected with leads the cloth water hole on the flexible basal disc, it is inside to be provided with a plurality of water channels to lead the cloth water hole, the one end fixedly connected with afterbody bearing structure in cloth water hole, afterbody bearing structure's the other end is connected with flexible floating tail portion, flexible basal disc passes through buckle fixedly connected with filtration, the both ends of flexible basal disc are provided with and pull soft cable fixing device, it pulls soft cable to pull soft cable fixing device fixedly connected with, flexible basal disc connects gradually according to order size on pulling soft cable, it connects on straight shaft-like soft cable fixing device to pull soft cable, flexible basal disc upper end is provided with floats, the lower extreme of flexible basal disc is provided with formula gravity device that sinks.
The flexible string-shaped ecological floating island device is characterized in that the number of the filtering structures is at least four, the cloth guide water holes are made of plastic materials and are mushroom-like water passing structures, and the main materials of the cloth guide water holes are light large-aperture cloth.
The flexible string-shaped ecological floating island device is characterized in that the flexible floating tail part is made of a material which can be freely suspended in a water body and can freely float along with the direction of water flow.
According to the flexible string-shaped ecological floating island device, the tail supporting structure enables the flexible floating tail and the filtering structure to keep a certain gap, and the larger specific surface area of the floating tail is ensured.
The flexible string-shaped ecological floating island device is characterized in that the straight rod-shaped soft cable fixing device is of a stainless steel structure.
The flexible string-shaped ecological floating island device is characterized in that the floating body is an airtight structure made of a wear-resistant light material filled with gas, and the sinking gravity device is a strip-shaped sinking structure made of a porous ceramic material.
The flexible string-shaped ecological floating island device is characterized in that a plurality of rows of cloth guide water holes are formed in the upstream surface of the filtering structure, a plurality of layers of flexible floating tail portions are formed in the downstream surface of the filtering structure, at least four traction soft cable fixing devices are arranged on the flexible base plate in the horizontal direction, the lower end of each traction soft cable fixing device is provided with at least one pointed end, and each traction soft cable fixing device is a connection fixing structure which is not easy to corrode and has certain toughness.
An application method of a flexible string-shaped ecological floating island device, wherein,
firstly, the device is assembled and put into water, water naturally flows along the horizontal direction and impacts on the flexible base plate, so that the umbrella-shaped structure of the cloth guide water hole is completely expanded, after water flow is intercepted, a huge flexible cover-shaped structure is expanded, water mass horizontally flows along the flexible base plate structure, and enters the umbrella-shaped structure of the cloth guide water hole under the shunting of the tooth-shaped structure on the surface of the flexible base plate;
secondly, under the action of flow guiding, the water enters a handle-shaped structure of the cloth guiding water hole and flows into the flexible floating tail arranged on the back surface of the flexible base plate along the handle-shaped structure, so that when a water body passes through the structure, advection is converted into turbulence, the water flow is divided into four water flows through the tail supporting structure, and the four water flows scour the flexible floating tail at the rear end;
finally, the flexible string-shaped ecological floating island device utilizes the natural flowing process of water bodies such as rivers in the horizontal direction, surface source pollutants carried by water flow are used as a power source, the dense flexible string-shaped fan-shaped floating island structure of the flexible base plate is utilized to adsorb and purify the surface source pollutants in the water bodies, and the surface source pollutants with different depths and widths in the water bodies such as rivers are comprehensively purified from the longitudinal dimension and the transverse dimension of the water bodies.
The invention provides a flexible string-shaped ecological floating island device and an application method thereof, which have the advantages of easily available structural materials, low cost and obvious decontamination effect by a biological method, fully utilize the power generated by the horizontal natural flow of a water body, realize the unpowered driving of water body pollutants for adsorption, and are suitable for being widely applied to the treatment of non-point source pollution of rural river channels and urban water bodies and the purification of the water bodies.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the flexible string-shaped ecological floating island device of the invention;
FIG. 2 is a side view of the overall structure of the flexible string-shaped ecological floating island device of the invention;
FIG. 3 is a schematic view of a flexible base plate of the flexible string-shaped ecological floating island device of the invention;
FIG. 4 is a schematic view of the water guiding holes of the flexible string-shaped ecological floating island device of the present invention;
FIG. 5 is a schematic diagram of the flexible floating tail of the flexible string-shaped ecological floating island device according to the present invention;
FIG. 6 is a schematic cross-sectional view of a flexible base plate of the flexible string-shaped ecological floating island device according to the present invention;
Detailed Description
The invention provides a flexible string-shaped ecological floating island device and an application method thereof, and the invention is further described in detail below in order to make the purpose, technical scheme and effect of the invention clearer and more clear. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
As shown in fig. 1-6, fig. 1 is a schematic view of the overall structure of the flexible string-shaped ecological floating island device of the present invention; FIG. 2 is a side view of the overall structure of the flexible string-shaped ecological floating island device of the invention; FIG. 3 is a schematic view of a flexible base plate of the flexible string-shaped ecological floating island device of the invention; FIG. 4 is a schematic view of the water guiding holes of the flexible string-shaped ecological floating island device of the present invention; FIG. 5 is a schematic diagram of the flexible floating tail of the flexible string-shaped ecological floating island device according to the present invention; FIG. 6 is a schematic cross-sectional view of a flexible base plate of the flexible string-shaped ecological floating island device according to the present invention; the invention relates to a flexible string-shaped ecological floating island device which comprises a flexible base plate 1, a cloth guide water hole 2, a flexible floating tail 3, a filtering structure 4, a traction soft cable fixing device 5, a traction soft cable 6, a straight rod-shaped soft cable fixing device 7, a buoy 8, a sinking gravity device 9 and a tail supporting structure 10.
The flexible string-shaped ecological floating island device is internally provided with a flexible base disc 1, the flexible base disc 1 is of a rectangular umbrella-shaped structure, a cloth guide water hole 2 is fixedly connected to the flexible base disc 1, the cloth guide water hole 2 is of a mushroom-like water passing structure made of plastic materials, a plurality of water passing channels are arranged inside the cloth guide water hole 2, one end of the cloth guide water hole 2 is fixedly connected with a tail supporting structure 10, the other end of the tail supporting structure 10 is connected with a flexible floating tail part 3, the flexible floating tail part 3 is a material capable of freely suspending in a water body and freely floating along with the direction of water flow, the flexible base disc 1 is fixedly connected with a filtering structure 4 through a buckle, the filtering structure 4 is at least four, the filtering structure 4 is a waterproof wear-resistant light material, the tail supporting structure 10 can enable the flexible floating tail part 3 and the filtering structure 4 to keep a certain gap in static water or in the water body with a small flow velocity, ensuring larger specific surface area of the suspension tail. The two ends of the flexible base plate 1 are provided with traction soft cable fixing devices 5, the traction soft cable fixing devices 5 are fixedly connected with traction soft cables 6, the flexible base plate 1 is sequentially connected to the traction soft cables 6 according to the sequence size, the traction soft cables 6 are connected to straight rod-shaped soft cable fixing devices 7, the straight rod-shaped soft cable fixing devices 7 are of stainless steel structures, the upper end of the flexible base plate 1 is provided with a float 8, the lower end of the flexible base plate 1 is provided with a sunken gravity device 9, the float 8 is an airtight structure made of wear-resistant light materials filled with gas, the function of the airtight structure is to enable the upper end of the flexible base plate 1 to float on the upper layer of a water body, the sunken gravity device 9 is a strip-shaped sunken structure made of porous ceramic materials, the function of the sunken structure is to enable the lower end of the flexible base plate 1 to sink in the water, and the sunken structure and the sinking structure are used for ensuring the normal unfolding of the flexible string-shaped ecological floating island device, the utility model discloses a flexible base plate, including filtration 4 upstream face, the surface of a poor water is provided with multirow lead cloth water hole 2, the surface of a poor water is provided with the multilayer flexible tail portion 3 that floats, be provided with four at least on the 1 horizontal direction of flexible base plate pull soft cable fixing device 5, it has a tip at least to pull soft cable fixing device 5 device lower extreme, pull soft cable fixing device 5 and be difficult for corroded and have the connection fixed knot structure of certain toughness, specifically can be a rope material.
Flexible basal disc 1 lead cloth water hole 2 and the flexible island reef device that has constituteed of afterbody 3 that floats, the island reef device is the umbrella column structure that flexible material made, the four corners of island reef device all is provided with pull soft cable fixing device 5, it is connected with on the soft cable fixing device 5 to pull soft cable 6, it is a plurality of to pull soft cable 6 connect on the island reef device pull soft cable fixing device 5 and form cluster island reef device overall structure, four soft cables that cluster island reef device overall structure cable was connected divide into upper soft cable and lower floor soft cable, and upper soft cable and lower floor soft cable are connected to respectively pull on the soft cable fixing device 5. The string-shaped reef island device is provided with four traction soft cable fixing devices 5, the four traction soft cable fixing devices 5 are positioned at four corners of the string-shaped reef island device,
the water body naturally flows along the horizontal direction and impacts the flexible base plate 1, so that the umbrella-shaped structure of the cloth guiding water hole 2 is completely opened, the contact area between the string-shaped ecological floating island and the water body is increased, the main material of the cloth guiding water hole 2 is light large-aperture cloth, the cloth guiding water hole has the characteristics of large specific surface area, large adsorption capacity, suspension, safety, environmental protection, corrosion resistance, low cost, easy treatment and the like, and simultaneously, heavy metal ions and other pollutant particles in the water body can be effectively adsorbed due to the special adsorption performance of the cloth guiding water hole, after water flow is intercepted, the huge flexible cover-shaped structure is opened, the water blocking and retaining effect is promoted, sufficient water pressure is provided for the water passing through the cloth guiding water hole 2, the passing jet flow is facilitated, namely, water clusters horizontally flow along the structure of the flexible base plate 1, and enter the umbrella-shaped structure of the cloth guiding water hole 2 under the shunting of the tooth-shaped structure on the surface of the, under the action of flow guiding, the water enters the handle-shaped structure of the water guiding and distributing hole 2, flows into the flexible floating tail part 3 arranged on the back surface of the flexible base plate 1 along the handle-shaped structure, and the flexible floating tail part 3 and the tail part supporting structure 10 can adsorb inorganic matters, organic matters, fine substances and ultrafine substances in the water body on the surface of the flexible floating tail part and the tail part supporting structure based on larger specific surface area, larger hole area and stronger adsorption capacity, and simultaneously provides a place for biofilm formation of microorganisms, algae and the like in water. The water flow flows along the front end and the tail supporting structure 10 flows, and the tail supporting structure 10 has the difference from the horizontal flowing direction of the water body, so that the water body is converted into turbulent flow by advection when passing through the structure, a certain disturbance effect is realized on the water body, the water body treatment time is prolonged, and the treatment efficiency is improved. The rivers pass through afterbody bearing structure 10 is divided into four rivers, and four rivers wash the rear end the flexible afterbody 3 that floats, whole process greatly increased the area of contact of water with the device, just afterbody bearing structure 10 with the huge specific surface area of flexible afterbody 3 provides sufficient space conditions for the biofilm formation such as microorganism, algae in the aquatic.
The flexible string-shaped ecological floating island device realizes unpowered operation by utilizing the process that water bodies such as rivers and the like naturally flow in the horizontal direction, namely, backwater increases potential energy and then is converted into kinetic energy; water flow carries non-point source pollutants as a power source, and the non-point source pollutants in the water body are adsorbed and purified by utilizing the dense flexible string-shaped fan-shaped floating island structure of the flexible base plate 1. From the vertical and horizontal two dimensions of water, the non-point source pollutant of the different degree of depth and width in the water such as river of comprehensive purification, through increase with the action time and the effect area of water, strengthen the water purification effect, reduce the content of non-point source pollutant in the water, just flexible base plate 1, because of its itself is harmless to the environment and adsorbed a large amount of nitrogen and phosphorus etc. can innocent treatment, is difficult for causing secondary pollution, exerts from this the effect of flexible cluster form ecological chinampa device multilayer compact structure.
The flexible string-shaped ecological floating island device and the application method thereof have the advantages that:
firstly, the flexible base plate 1 is made of flexible materials and has an umbrella-shaped structure, is suitable for horizontal flowing water bodies with different flow rates, and can be widely applied to treatment of non-point source pollution of rural river channels and urban water bodies and water body purification.
Secondly, the ecological floating island structure is a string-shaped ecological floating island structure and is formed by sequentially connecting impermeable basal disc structures with similar structures and different sizes in series according to the sizes, a fan-shaped structure is formed, the ecological floating island structure is suitable for the flow directions of various water bodies, and the multi-layer filtering effect on the water bodies can be realized.
Thirdly, the umbrella-shaped structure of the flexible basal disc 1 is unfolded from the vertical direction and is respectively contacted with the upper water area and the lower water area through two parts, so that microorganisms, algae and plankton with different water layers and different life habits can form different biocoenosis at different depths, the water body surface source pollution is longitudinally treated, and different types of surface source pollutants in water bodies with different depths are purified.
Fourthly, the flexible base plate 1 is of an umbrella-shaped surface structure, water flow impacts the flexible base plate 1, the umbrella-shaped structure is completely expanded, and the contact area of the string-shaped ecological floating island and a water body is greatly increased.
Fifthly, the flexible base plate 1 is an umbrella-shaped surface structure, tooth-shaped structures are distributed on the surface structure, water flows horizontally along the flexible base plate 1 after being intercepted, and enters the umbrella-shaped structure of the cloth guide water hole 2 under the shunting of the tooth-shaped structures on the surface of the flexible base plate 1, so that the effect of balancing the water flow can be achieved, the contact area between a water body and the base plate is increased to the maximum extent, and more convenient conditions are provided for biological film hanging.
Sixthly, lead cloth water hole 2 and have good water distribution function, the rivers striking is in on the flexible basal disc 1, receive the water conservancy diversion effect, get into lead the handle column structure in cloth water hole 2, follow handle column structure and flow into the rigid bearing structure of front end of afterbody 3 is floated to the flexibility, and rivers flow along the rigid bearing structure of front end, are divided into four strands rivers, and four strands rivers erode the rear end the flexibility floats afterbody 3, greatly increased with the area of contact of water, effectively improved water purification efficiency.
Seventh, the water guide holes 2 are uniformly distributed on the back surface of the flexible floating tail 3, so that an attachment place is provided for microorganisms, algae and the like in the water body, the flexible base plate 1 has a huge specific surface area, a biological membrane with a large specific surface area is favorably formed, the contact time of pollutants and the flexible base plate 1 is prolonged, and the water purification efficiency is greatly improved.
Eighth, the multiple layers of the front-end rigid support structure of the flexible floating tail part 3 enable the rear flexible suspension structure and the flexible cover-shaped structure to keep a certain gap in static water or a water body with a small water flow velocity, so that the flexible floating tail part 3 is ensured to have a large specific surface area all the time, and a biological membrane is formed.
And ninthly, based on the flowing process in the horizontal direction of the natural water body, water flow carries surface source pollutants in the water body, the water flow flows through the string-shaped multilayer structure of the ecological floating island device in the horizontal direction, water blockage is continuously caused, the potential energy of water is improved, the kinetic energy of the water is further increased, and the unpowered water body purification process of the whole device can be realized.
Tenth, the ecological floating island made of wear-resistant lightweight materials can be recycled after long-term use, secondary pollution cannot be caused after harmless treatment, and secondary utilization such as fermentation and fertilizer production can be realized by utilizing biological films attached to the surface of the ecological floating island and substances such as nitrogen and phosphorus absorbed by the ecological floating island.
It is to be understood that the invention is not limited to the examples described above, but that modifications and variations may be effected thereto by those of ordinary skill in the art in light of the foregoing description, and that all such modifications and variations are intended to be within the scope of the invention as defined by the appended claims.