KR101258159B1 - Back Washing Floating Wetland and Vegetation settling System - Google Patents

Abstract

In the backwash floating wetland system according to the present invention, the purified raw water drawn up by the first pump passes through a channel consisting of a plurality of partitions and filtration members to perform water purification, and the backwash suspension periodically backwashes the filtration members. It consists of a wetland, an upper layer having a vegetation mat capable of cultivating plants on the bottom surface, and a lower layer of a hopper type, and when purified water is introduced from the backwash floating wetland, for another natural purification. It is configured to include a vegetation-type sedimentation basin to flow the introduced effluent to the upper layer, and when the backwashed effluent from the backwash floating wetland flows, the introduced effluent flows to the lower layer for the settling of foreign matter.
The present invention is produced by floating floating wetlands such as small islands, such as wetlands, rivers, lakes, artificial wetlands, etc. are installed because there is no need for a large site for filtration has the effect of reducing the management cost. In addition, because it floats only in wetlands, rivers, lakes, etc., there is an effect of easy installation and convenient management. In addition, since the plant has an island shape that grows, it is effective to beautify the beauty. In addition, since the filter member can be used semi-permanently by washing, there is no need to replace the filter member, thereby reducing the waste of resources. In addition, the water quality is improved through the filtering member and the natural plant has the effect of reducing the water treatment cost. In addition, there is an effect that can protect a variety of aquatic life by functioning as a habitat for living things.

Description

Back Washing Floating Wetland and Vegetation settling System

The present invention relates to a floating wetland or an artificial plant island, and more particularly, to a backwashing floating wetland and a vegetation type precipitation system capable of washing the filtering member.

In Korea, many factories were established due to rapid industrialization, and a lot of wastewater was generated due to population concentration due to urbanization. However, water pollution became serious when natural purification reached its limit. Therefore, the government has been aware of the importance of the environment, especially the seriousness of water pollution, enacting legislation accordingly, and making a lot of efforts to improve water quality such as expansion of sewage treatment plants. The result is a successful point source reduction. However, it has not been possible to achieve target water quality until recently because it has not been able to control nonpoint pollutants (substances generated by unspecified emissions pathways, such as urban road drainage or agricultural drainage, unlike those with specific discharge pathways). In particular, non-point pollutants are released when a lot of rain falls. Especially, Korea has not set emission standards systematically because it is difficult to quantify because it has four seasons and rainfall is not constant.

Therefore, various methods for purifying point pollutants and nonpoint pollutants have been proposed. Among them, a method of allowing the aquatic plants to absorb aquatic substances to be absorbed is attracting attention. Since this method is carried out under relatively natural conditions and processes, it is known that this natural purification process has an excellent effect if only vegetation is well formed. Looking in detail from the prior art (registration number 10-0967170) of them are as follows.

1 is a cross-sectional view showing a natural facility for the treatment of non-point pollutants according to the artificial wetland biofiltration method according to the prior art. The prior art will be described with reference to Fig. 1, which receives the initial rainwater flowing from the nonpoint source, and the vortex screen 11 installed in the initial rainwater collection tank 10 for various foreign matters contained in the initial rainwater. Primary processing. The vortex screen 11 is a treatment mechanism using gravity sedimentation, a screen, and a filter using passive vortex vortex, gross pollutants, sediment, oil & grease, suspended matter ( SS) and the like are removed.

In addition, the initial excellent after the screening process is naturally transferred to the natural non-point pollutant treatment facility (1) through the initial rainwater supply pipe (100) from the initial rainwater collection tank (10) by the hydraulic pressure difference, The initial excellent rainwater was dephosphorized and nitrogen removed by vegetation plants planted in the artificial wetland layer 20, and some of the initial rainwater was passed through the biofilm filter 50 to decompose organic matter by the microbial action of the microbial carrier 501. You will go through the process. The initial rainwater passing through the artificial wetland layer 20 is absorbed and filtered by the biofilm inside the sand layer 301 and the gravel layer 302 which are the filtration layer 30 formed under the artificial wetland layer 20 again. And, the process of removing contaminants by the sedimentation action in the gap between the sand layer and the gravel layer is made, the initial rainwater passing through the filter layer 30, the initial rainwater passing through the biofilm filter 50, the sump crystal (60) After collecting water, it is discharged to the outside through the discharge pipe 200.

Since the prior art as described above requires a large site for purification, the selection of a place for purification is limited and it is expensive due to the large site management. In addition, it is impossible to recover the total amount of water contaminated with nonpoint pollutants coming from an unspecified place, and it is impossible to replace it when the elements for natural purification reach the limit of purification. And even if it can be replaced, it is not easy to manage because it has to go under water and work.

 In addition, even if water is purified and discharged, it is highly likely to be recontaminated by contaminants introduced from an unspecified place, and it is difficult to redefine the recontaminated water.

In addition, the appearance is not good because of the water purifier.

The prior art has a disadvantage in that the selection of a place is limited and a huge cost is required for the management cost and facility investment due to the use of a large site.

In addition, there is a disadvantage in that it is difficult to recover the total amount of water contaminated with contaminants generated in an unspecified number of places.

And it is difficult to replace when the plants and the devices for purification reach the purification limit.

In addition, there is a disadvantage that the purified water is difficult to refinance upon recontamination.

Finally, there is a disadvantage in that it hurts the aesthetics due to the purification device.

The present invention is to solve this problem of the prior art, to provide a backwash floating wetland and vegetation-type sedimentation system that can be directly installed on the water surface for the purification of water, such as lakes, dams, reservoirs, artificial wetlands where water is constantly collected. The purpose is.

Another object of the present invention is to provide a backwash floating wetland and a vegetation type precipitation system which can be used semi-permanently by washing the filtration member having a purification function.

Still another object of the present invention is to provide an eco-friendly backwash floating wetland and a vegetation type precipitation system by precipitating organic substances and nutrients flowing out after washing the filtering member and using them as fertilizer after drying on the ground.

In order to achieve the above object, the present invention performs the purified water by passing the purified raw water drawn up to the first pump through a plurality of partitions and filtration member, and the backwash floating to periodically backwash the filtration member It consists of a wetland, an upper layer having a vegetation mat capable of cultivating plants on the bottom, and a lower funnel-shaped lower layer. When the purified water flows from the backwashing wetland, the discharged water flows for natural purification. It is configured to include the backwash floating wetland to flow to the upper layer, and when the backwashed discharged water from the backwashing floating wetland flows into the lower layer for the settling of the foreign matter.

In this case, the backwash floating wetland is located under each filtration member, and is connected to the backwashing pipe having a plurality of ejection holes and the backwashing pipe so as to form a gap between the media of the filtration member. An air pump for injecting a predetermined air pressure through the ejection hole, and a water pump connected to the backwash pipe and injecting a predetermined water pressure through the ejection hole in a gap between the media of the filtration member; Can be configured.

In addition, the backwash floating wetland moves the effluent purified through the filtration member to the upper portion of the vegetation-type sedimentation basin, and the second pump for the discharged water introduced after the backwashing is moved to the lower layer of the vegetation-type sedimentation basin. It can be configured to include.

The vegetation mat may be incubated with at least one or two or more kinds of caterpillars, irises, waterfowl, strings, buttercups, moonroot grass, reeds, hyacinths, water hyacinths, and taxa.

The lower layer of the vegetation-type sedimentation basin is connected to a plurality of partition walls for receiving the purified raw water containing foreign matters after washing the filtration member and depositing the foreign matters to the lower portion of the lower layer, and the foreign substance exit port formed at the lower portion of the lower layer and the pipe. It may be configured to further include a third pump for discharging the foreign matter to the outside.

In addition, the backwash floating wetland and vegetation-type sedimentation basin is covered with a mesh for planting scattering artificial grass on the outer surface in contact with the purification raw water, the outer surface corner may be provided with a ring for fixing the position on the water surface have.

In the present invention, since floating wetlands such as small islands are manufactured and installed in wetlands, rivers, lakes, artificial wetlands, and the like, there is no need for a large site for filtration, thereby reducing management costs.

In addition, because it floats only in wetlands, rivers, lakes, etc., there is an effect of easy installation and convenient management.

In addition, since the plant has an island shape that grows, it is effective to beautify the beauty.

In addition, since the filter member can be used semi-permanently by washing, there is no need to replace the filter member, thereby reducing the waste of resources.

In addition, the water quality is improved through the filtering member and the natural plant has the effect of reducing the water treatment cost.

In addition, there is an effect that can protect a variety of aquatic life by functioning as a habitat for living things.

1 is a cross-sectional view showing the artificial wetland biofiltration method for non-point pollutant treatment according to the prior invention.
Figure 2 is a perspective view showing a backwash floating wetland and vegetation type precipitation system according to the present invention.
Figure 3 is a cross-sectional perspective view taken along line A-A 'of the backwash floating wetland and vegetation sedimentation basin according to the present invention.
Figure 4 is a plan view showing the flow of purified water according to the present invention.

Technical configuration and effect of the backwash flotation wetland and vegetation type precipitation system according to the present invention will be clearly understood by the following detailed description with reference to the drawings showing preferred embodiments of the present invention.

Figure 2 is a perspective view showing a backwash floating wetland and vegetation-type sedimentation system according to the present invention, Figure 3 is a cross-sectional perspective view taken along line A-A 'of the backwashing floating wetland and vegetation-type sedimentation according to the present invention, Figure 4 A plan view showing the flow of purified water according to the invention.

As shown in Figures 2 to 4, the backwash floating wetland and vegetation-type sedimentation system 10 according to the present invention, a plurality of partitions (300a) and the filtering member to purify the raw water drawn up to the first pump (110) Water purification is performed by passing through a water channel consisting of 130, and includes a backwash floating wetland 100 to periodically backwash the filtration member (130).

In addition, the vegetation mat 211 is capable of cultivating the plant is composed of an upper layer 210 having a bottom surface and a lower portion 250 of the hopper (hopper) type, the purified water discharged from the backwash floating wetland (100) When the water flows in, the discharged water flows to the upper layer 210 for another natural purification, and when the backwashed discharged water flows from the backwashing wetland 100, the introduced discharged water is precipitated. It is configured to include a vegetation-type sedimentation basin 200 to flow to the lower layer 250 for.

At this time, the filtration member 130 is purified so that the purified water passes through the filtration member 130, a plurality of water holes 131 penetrating through the filtration member 130 to move to another filtration member 130. Equipped.

The lower portion of the backwash floating wetland 100 is provided with a buoyant agent to float the filtration member 130 and the backwashing device on the water surface.

In addition, the backwash floating wetland 100 is provided with a plurality of ejection holes 141 in the lower portion of each filtration member 130 to periodically remove the foreign substances filtered by the purified water treatment filtration member 130. An air pump connected to the backwash pipe 140 and the backwash pipe 140 to inject a predetermined air pressure through the jet hole 141 to form a gap between the media of the filtration member 130. 150 and a water pump 160 connected to the backwash pipe 140 to inject a predetermined water pressure through the jet hole 141 into a gap between the media of the filtration member 130. It is configured to include.

The cleaning process of the filtration member 130 is as follows.

When the filtration member reaches the filtration limit point or after the periodic purification time, the supply of the purification raw water from the first pump 110 is stopped. In addition, the air pump 150 is operated to blow air pressure having a predetermined pressure into the filtration member 130 through the blowing hole 141. At this time, a space (gap) is formed between the media in the filter member 130 due to the blown air. After a certain time, the present invention drives the water pump 160 together with the air pump 150. The water pump 160 removes foreign substances by spraying water having a predetermined pressure into the space between the media created by the air pressure together with the air through the jet hole 141. After a certain time washing, the control module (not shown) stops the air pump 150 and drives the water pump 160 to increase the amount of water so that the foreign substances flow along the water flow. In this case, the second pump 170 is driven together with the water pump 160 to prevent the overflow of the backwashed effluent from the last partition 300a, and the backwashed effluent to the lower layer 250 To be discharged. The control module (not shown) stops driving the water pump 160 when the backwashed discharged water is discharged to the lower layer 250, and drives the first pump 110 to purify purified water. Let work begin. At this time, the second pump 170 controls the solenoid operated valve 500 to discharge the purified wastewater to the upper layer 210 of the vegetation-type sedimentation basin 200.

The upper layer portion 210 is provided with a vegetation mat (211) capable of vegetation on the bottom surface. The vegetation mat 211 is discharged from the backwash floating wetland 100 by incubating at least one or two or more kinds of cattle, irises, pampas grass, string, buttercup, moonroot grass, reeds, squirts, water hyacinth, taxa together The purified effluent is once again naturally purified through the plant.

When the discharged water of the backwash floating wetland 100 is discharged to the upper layer 210, the discharged water supplies nutrients to plants and living organisms inhabiting the upper layer 210.

In addition, the lower layer part 250 receives the discharge water containing the foreign matter after washing the filtration member 130, and when the foreign matter flows by the flow rate, the lower layer part 250 collides with the plurality of partitions 300b to quickly settle the foreign matter downward. The foreign material outlet 251 is formed in the lower portion of the lower layer 250 so as to discharge the accumulated foreign matter to the outside, and the third pump 253 connected to the foreign material outlet 251 by a pipe is deposited. Drain the foreign substance to the outside. Meanwhile, as shown in FIG. 3, the discharged water passing through the partition wall 300b of the lower layer part 250 is discharged through the drain hole 255 formed on the bottom surface of the upper layer part 210.

In addition, the present invention is to be provided with a buoyant (400b) that can be attached and detached in order to float the upper layer portion 210 on the water surface. When another floating wetland is bound to the backwash floating wetland and the vegetation-type sedimentation basin 200, the buoyant 400b is detached to closely adhere to the floating wetland.

The backwash floating wetland 100 and the vegetation-type sedimentation basin 200 is covered with a mesh 600 for planting scattering artificial grass on the outer surface in contact with the purified water, and the position fixing on the water surface on one side edge It has a ring for.

At this time, the net 600 is not only artificial grass, but also to purify the water, weeds, irises, pampas grass, rope, water hyacinth, buttercups, billows, reeds, squirts, texas, pussy willow, water lily, water cabbage, lotus flower, water Poppy, watercoin, papyrus, green grass, etc. plant at least two kinds of plants to help clean the water.

In addition, each of the pumps (eg, the air pump, the water pump, and the first pump) installed in the backwash floating wetland 100 and the vegetation-type sedimentation basin 200 is provided with a solenoid operated vale 500. The flow of water can be controlled manually or automatically, and the backwash floating wetland 100 is provided with a control module (not shown) to control the pump and the solenoid conversion valve 500 and the pump, and the communication module ( Not shown) can be controlled from a long distance.

Finally, the first and second floating wetland (100, 200) may be made by mixing one or two or more of synthetic resin, metal, wood, among them, considering the adaptability to water, durability, price, manufacturing method, etc. When it is done, it is most preferable to produce a synthetic resin. As an embodiment, a lot of FRP (Fiber Reinforced Plastics) are selected and manufactured.

Although a preferred embodiment of the present invention described above has been described in detail, those skilled in the art will understand that various modifications and equivalent other embodiments are possible therefrom.

Accordingly, the scope of the present invention should not be limited to the disclosed embodiments but should be regarded as belonging to various modifications and improvements of those skilled in the art using the basic concept of the present invention as defined in the following claims, or the scope of the present invention. .

10: Backwash Float Wetland and Vegetation Type Precipitation System
100: backwash floating wetland 110: the first pump
130: filtering member 131: pitcher
140: backwash pipe 141: jet hole
150: air pump 160: water pump
170: second pump
200: vegetation sedimentation basin 210: upper layer
211: vegetation mat 250: lower layer
251: exit 253: third pump
255: drain hole 300a, 300b: partition wall
500: solenoid conversion valve 400a, 400b: buoyancy agent
600: netting

Claims (6)

A backwash floating wetland for purifying the purified raw water drawn up by the first pump to pass water through a channel consisting of a plurality of partition walls and a filtration member, and periodically backwashing the filtration member;
Consists of an upper layer and a hopper type lower layer having a vegetation mat on the bottom surface for cultivating plants, and when the purified water is introduced from the backwashing wetland, the discharged water is introduced for another natural purification. In order to flow to the upper layer, and when the backwashed effluent from the backwash floating wetland is introduced, the inlet effluent is configured to include a vegetation-type sedimentation basin to flow to the lower layer for the settling of foreign matter Washable wetland and vegetation precipitation system. The method of claim 1, wherein the backwash floating wetland
A backwash pipe positioned under each filtration member and having a plurality of blowout holes;
An air pump connected to the backwash pipe and injecting a predetermined air pressure through the ejection hole so as to form a gap between the media of the filtration member;
A backwash floating wetland and vegetation-type sedimentation system further comprising a water pump connected to the backwash pipe and spraying a predetermined water pressure through the jet hole in the gap between the media of the filtration member. . The method of claim 1, wherein the backwash floating wetland
The waste water purified by passing through the filtration member is moved to the upper layer of the vegetation-type sedimentation basin, and the discharged water introduced after backwashing further comprises a second pump for moving to the lower layer of the vegetation-type sedimentation basin Backwash Float and Vegetation Settlement System. The method of claim 1, wherein the vegetation mat
A backwash floating wetland and vegetation type precipitation system, characterized by incubating at least one or two or more types of caterpillars, irises, pampas grasses, strings, buttercups, moon roots, reeds, squirts, water hyacinths and taxa. According to claim 1, wherein the lower layer of the vegetation type sedimentation basin
A plurality of partition walls for receiving the purified raw water including foreign matters after washing the filtration member and depositing the foreign matters under the lower layer;
Backwash floating wetland and vegetation-type sedimentation system characterized in that it further comprises a third pump connected to the discharge outlet and the pipe formed in the lower portion of the lower portion to discharge the foreign matter to the outside. The method of claim 1, wherein the backwash floating wetland and vegetation sedimentation basin
A backwash floating wetland and vegetation type sedimentation system, characterized in that the outer surface in contact with the purified water is covered with a net for planting scattering artificial grass, and a ring for fixing the position on the water surface on one side edge of the outer surface.

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