KR101872382B1 - Removal System for Ecological River Stream - Google Patents

Abstract

According to the present invention, a river contaminant removal structure is installed on a river to remove contaminants included in river water, and comprises: an aeration unit (100) to create an aeration phenomenon; an aggregation unit (200) in which water pressure by an increase in a flow velocity is increased; and a dispersion unit (300) to have a lower water pressure than the aggregation unit (200). The aeration unit (100), the aggregation unit (200), and the dispersion unit (300) are sequentially formed in accordance with a flow direction of the river. According to the present invention, impact energy created in a head structure can be naturally dissipated by the aggregation unit and the dispersion unit to prevent damage to a river course or a river bed and increase a rate at which air in air bubbles created by the aeration phenomenon is dissolved in the river water.

Description

Technical Field [0001] The present invention relates to a structure for removing river pollutants and a method for removing complex pollutants using the same,

The present invention relates to a structure for removing river pollutants for removing pollutants in streams, and a construction method for a system for removing complex pollutants using the same. More specifically, it is possible to increase the dissolved oxygen amount of the river by using the phenomenon of natural aeration, to increase the aeration efficiency while preventing damages of the river bed due to aeration, and to improve the quality of the river pollutant And a method of constructing a composite pollutant removal system using the same.

Conventional stream pollutant removal technology can be classified into biological, chemical, and physical removal methods.

Here, the biological contaminant removal technology is a technology for eliminating contaminants by using microorganisms or plants, for example, artificial wetlands. Chemical contaminant removal technology is a method of recovering reacted contaminants by injecting substances such as coagulants that react with the target contaminants. The physical contaminant removal technology is to construct a structure such as a dropping hole to induce air to enter the stream.

However, the conventional biological decontamination method has a problem in that it is difficult to operate four seasons due to a large variation in pollutant removal efficiency depending on the season.

In addition, the chemical decontamination method is effective in eliminating the pollutants, but it is difficult to continuously operate the chemical decontamination apparatus because the chemical must be discharged in a large amount. In particular, utilization is limited in places where large amounts of pollutants such as rivers can be dropped.

In addition, the aeration structure, which is a sample of physical removal method, is mainly used to increase the DO value. Therefore, it is difficult to remove various pollutants. Especially, in case of aeration structure, which is mainly used in a river, Failure to do so may result in problems with bed or undersea breakage. In addition, since the continuity of the river is impeded, there arises a problem of environmental damage such as the loss of fishing water.

It is an object of the present invention to provide an apparatus and a method for reducing impact energy generated by a falling structure by dispersing impact energy generated by a falling structure naturally through a flocculation unit and a diffusion unit, And to provide a method of constructing a system for removing contaminants from a stream and a system for removing a complex contaminant using the same.

Another object of the present invention is to provide a structure for removing a stream pollution material having a lowering protection function and an aeration performance improving function for maintaining the continuity of a river by adopting a multi-stage structure of a car, not a high-lift structure, And a method for constructing a pollutant removal system.

It is another object of the present invention to provide a structure for removing contaminants from streams and a system for removing complex contaminants using the same, which can increase the efficiency of removal of stream pollution by allowing the use of a combination of a physical contaminant removal method and a biological and chemical contaminant removal method And to provide a method.

According to the present invention, there is provided a structure for removing contaminants from a stream, which is installed on a bed and removes contaminants contained in the stream water, comprising: an aeration unit 100 generating an aeration phenomenon; A flocculating portion 200 in which the water pressure due to an increase in flow rate is increased; And a diffusion unit 300 having a water pressure lower than that of the flocculation unit 200. The aeration unit 100, the flocculation unit 200, The water pollutant removal structure being formed in order.

In this case, the aeration unit 100 is a step-like structure, and may be a structure for removing contaminants of the river, which gradually decreases along the direction of the stream.

The width a2 of the second undercut 210 on the coagulation unit 200 is greater than the width a1 of the first undercut 110 on the atmospheric portion 100 and the width a1 of the third undercoat Is narrower than the width (a3) of the drainage pipe (310).

In addition, the width a1 of the first undercut 110 may gradually decrease along the direction of the stream.

Also, the width a3 of the third undercut 210 may gradually increase along the stream direction of the river.

In addition, the depth b2 of the second undercut 210 may gradually become deeper along the stream direction of the river.

In addition, the depth b3 of the third underpass 310 gradually becomes shallower along the direction of the stream of the river.

The structure may further include a valley (400) formed at a boundary between the flocculation unit (200) and the diffusion unit (300).

According to another aspect of the present invention, there is provided a method of constructing a composite pollutant removal system using a stream pollutant removal structure, comprising: a first step (S100) of constructing a purification layer (500) And a second step (S200) of placing the stream contaminant removing structure on top of the purifying layer (500), wherein the purifying layer (500) comprises a first layer (510) formed as an oxygen free anaerobic space; And a second layer (520) formed on the first layer (510) and formed of a material containing a calcium component.

In this case, the second layer 520 may include a gravel layer 522 mixed with limestone and a sand layer 521 mixed with coral sand.

According to the present invention, the impact energy generated in the drop structure can be dissipated naturally through the flocculating portion and the diffusion portion, thereby preventing damage to the lower or lower stream of the river.

According to the present invention, it is possible to maintain the continuity of streams by adopting a stepping-off portion of the width-wise portion as a multi-staging structure, not a high-lift structure.

According to the present invention, there is an effect that efficiency of removing river contamination can be improved by allowing a physical pollution elimination method and a biological and chemical pollution elimination method to be used together.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a view showing a state in which a structure for removing a contaminant of a river according to an embodiment of the present invention is installed on a bed; FIG.
2 is a perspective view of a structure for removing flue gas pollutants according to an embodiment of the present invention.
3 is a plan view of a structure for removing flue gas pollutants according to an embodiment of the present invention.
4 is a perspective view of another embodiment of a structure for removing flue gas pollutants according to an embodiment of the present invention.
5 is a front view of a structure for removing flue gas pollutants in accordance with an embodiment of the present invention.
6 is a left side view of a structure for removing flue gas pollutants according to an embodiment of the present invention.
7 is a view showing a flow of a stream in a structure for removing flue gas pollutants according to an embodiment of the present invention.
8 is a view showing aeration phenomenon and aeration of aeration air bubbles generated in a structure for removing a flue gas from a stream according to an embodiment of the present invention.
9 is a cross-sectional view of a composite contaminant removal system in accordance with an embodiment of the present invention.

The embodiments of the method for constructing a structure for removing river pollutants and a system for removing complex pollutants using the same according to the present invention will be described in detail with reference to the accompanying drawings, In the drawings, the same or corresponding components are denoted by the same reference numerals, and a duplicate description thereof will be omitted.

It is also to be understood that the terms first, second, etc. used hereinafter are merely reference numerals for distinguishing between identical or corresponding components, and the same or corresponding components are defined by terms such as first, second, no.

In addition, the term " coupled " is used not only in the case of direct physical contact between the respective constituent elements in the contact relation between the constituent elements, but also means that other constituent elements are interposed between the constituent elements, Use them as a concept to cover each contact.

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure for removing contaminants in a stream, which is installed on a river bed to remove contaminants contained in river water.

The main purpose of this structure is to remove pollutants such as carbon, nitrogen, and phosphorus, which cause green algae, from rivers or to make it difficult to absorb green algae.

DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, an embodiment of the present invention will be described with reference to an embodiment of the present invention.

The water pollutant removing structure according to an embodiment of the present invention basically has a lower water pressure than the flocculating part 100 causing the aeration phenomenon, the flocculating part 200 where the water pressure is increased due to the increase of the flow rate, and the flocculating part 200 (Not shown).

In this case, the vent 100, the coagulation part 200, and the diffusion part 300 are formed in order along the flow direction of the river (FIG. 1).

The aeration unit 100 artificially drops water on the stream to induce aeration phenomenon. To this end, the vent 100 according to one embodiment of the present invention is formed into a stepped structure having multiple steps (Figs. 2 and 3).

Conventionally, a structure for generating a physical augmentation has adopted a method of maximizing the aeration phenomenon by providing a high dropping point. However, such a high dropping aeration structure has a problem that the dropping or lowering of the river bed is caused by falling energy of water.

In addition, aeration structures with high freefall impeded the continuity of rivers, impeding river circulation and migration of river organisms, resulting in natural degradation.

Accordingly, the structure for removing river pollutants according to the present invention has an effect of minimizing the above-mentioned problems of natural damages while maintaining the efficiency of occurrence of aeration phenomenon by taking a multi-step structure (step-like structure)

The flocculating portion 200 increases the water pressure of the stream to increase the rate at which the air of the air bubbles generated in the aeration unit 100 is dissolved in the river water.

To this end, the width a2 of the second undercut 210 on the coagulating portion 200 is greater than the width a1 of the first undercut 110 on the wick 100 and the third undercut 310 on the diffusing portion 300. [ (Fig. 2). As shown in Fig.

In addition, it is preferable that the width a1 of the first ground road 110 is gradually narrowed along the flow direction of the river. In this case, as the flow velocity of the river water flowing on the vent pipe 100 approaches the flocculant 200, the flow velocity can be increased naturally, so that the water droplet retention ratio generated by the aeration phenomenon can be increased, The effect of minimizing the phenomenon can be obtained.

In addition, it is possible to minimize the phenomenon that the bottom of the aeration section 100, which has the largest flow energy due to the falling of the stream water, is prevented from contacting the bottom of the river,

The diffusion unit 300 serves to lower the water pressure of the river water that has been raised in the flocculation unit 200.

To this end, the width a3 of the third underpass 210 formed on the diffusion part 300 gradually widens along the flow direction of the river (FIG. 3).

In this case, the falling energy generated in the vent 100 can be dissipated naturally through the flocculating part 200 and the diffusion part 300.

Also, the air bubbles moving to the flocculating portion 200 can be collected in the valley 400 formed at the end of the flocculating portion 200, as described later.

The stream contaminant removing structure according to an embodiment of the present invention may further include a valley 400 formed at a boundary between the flocculating portion 200 and the diffusion portion 300 (FIGS. 5 and 6).

In this case, air bubbles generated in the vent 100 may be collected in the valleys 400. Thus, the amount of air to be melted in the river water can be increased.

Since the valley 400 is formed at the boundary between the flocculating portion 200 and the diffusion portion 300 as described above, considering the slow flow rate of the diffusion portion 300, The effect of minimizing the deviation phenomenon can be obtained.

The depth b2 of the second underpass 210 gradually increases along the direction of flow of the river to form the troughs 400 and the depth b3 of the third underpass 310 along the direction of flow of the river And gradually becomes shallower (Fig. 6).

Hereinafter, a method for constructing a complex pollutant removal system using a stream contaminant removal structure according to an embodiment of the present invention will be described.

A method for constructing a composite pollutant removal system according to the present invention includes a first step (S100) of applying a purification layer (500) to an upper part of a lower part of a bed, a second step Step S200 (FIG. 9).

Here, the purification layer 500 includes a first layer 530 formed as an empty oxygen-anaerobic space and a second layer 520 formed on the first layer 530 and formed of a material containing a calcium component (FIG. 9 ).

The reason why the first layer is formed with calcium-containing materials (limestone, coral, etc.) is that calcium ions are precipitated when phosphorus ions and calcium ions are reacted. Therefore, phosphorus contaminants To remove it.

The second layer includes a gravel layer 522 mixed with limestone and a sand layer 521 mixed with coral sand.

In this case, when the oxygen-enriched stream water is directly infiltrated into the first layer 530 by the vent 100, the anaerobic space of the first layer 530 may be breeding aerobic bacteria and destroy the anaerobic space. Thus, the gravel layer 522 and the sand layer 521 of the second layer serve as a filter layer so that the river water can not directly penetrate the first layer 530.

As a result, the exchange of contaminants between the river water and the first layer 530 is possible only by penetration and diffusion phenomenon through the filter layer of the second layer.

Specifically, the sand layer 521 plays a role of a filter, and the gravel layer 522 prevents loss of sand of the sand layer 521 and plays a role of primary filtering of the clogging.

In addition, since the gravel layer 522 formed on the upstream and downstream portions of the stream pollutant removal structure directly contacts the river water, a purification effect by a natural plant such as moss that occurs naturally on the river bed can also be obtained.

In this case, the calcium component binds to phosphorus and precipitates as calcium phosphate, thereby preventing the occurrence of a green tide. Also, in the oxygen free anaerobic space of the first layer 510, the anaerobic microorganisms, nitrates, and ammonium are decomposed to remove contamination.

The conventional biological decontamination technique is highly affected by the season. However, since the complex pollutant removal system according to the present invention forms an anaerobic space for bio-contamination, which is a biological decontamination space, under the structure for performing the physical decontamination function, Compared with the decontamination technology, it is less affected by the season.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the invention as defined in the appended claims. It is to be understood that both the technical idea and the technical spirit of the invention are included in the scope of the present invention.

100:
200: coagulated part
300:
400: Goals
500: purified layer

Claims (10)

A stream pollutant removing structure installed on an upper part of a purification layer (500) installed on a bed to remove pollutants contained in stream water,
An aeration unit 100 generating an aeration phenomenon;
A flocculating portion 200 in which the water pressure due to an increase in flow rate is increased; And
And a diffusion part (300) having a lower water pressure than the flocculation part (200)
The aeration unit 100, the flocculation unit 200, and the diffusion unit 300 are sequentially formed along the flow direction of the river,
The aeration unit 100 is a step-like structure that gradually decreases along the flow direction of the river,
The width a2 of the second undercut 210 on the aggregate 200 is greater than the width a1 of the first undercut 110 on the aerator 100 and the width a1 of the third underpass 310 Of the width (a3)
The depth b2 of the second undercut 210 progressively deepens along the flow direction of the river,
The depth b3 of the third underpass 310 gradually becomes shallow along the stream direction of the river,
And a reservoir part (150) formed before the aeration part (100) and higher than a level before the aeration part (100) based on a flow direction of the river,
The purifying layer 500 includes a first layer 530 disposed on a lower surface and a second layer 520 formed on the first layer 530. The second layer 520 is formed of a mixture of limestone A gravel layer 522 and a sand layer 521 mixed with coral sand,
The gravel layer 522 in which the coral fiber is mixed is formed on the first layer 530 and the gravel layer 522 in which the limestone is mixed is sandwiched between the upper part of the sand layer 521 mixed with the coral- Wherein the structure is installed upstream and downstream of the structure.
delete delete The method according to claim 1,
Wherein a width (a1) of the first lower passageway (110) is gradually narrowed along a flow direction of the river
5. The method of claim 4,
Wherein a width (a3) of the third underpass (310) is gradually widened along a flow direction of the river.
delete delete 6. The method of claim 5,
A valley 400 formed at the boundary between the flocculating portion 200 and the diffusion portion 300;
Wherein the water contaminant removal structure further comprises:
A method for constructing a complex pollutant removal system using a river pollutant removal structure according to claim 8,
A first step (S100) of installing the purifying layer (500) on the upper part of the bed;
And a second step (S200) of placing the stream contaminant removing structure on the upper part of the purifying layer (500)
The purging layer (500)
A first layer 530 formed into an oxygen free anaerobic space; And
And a second layer (520) formed on the first layer (530) and formed of a material containing a calcium component.
10. The method of claim 9,
The second layer 520 includes a sand layer 521 having a coral fiber mixed therein and a gravel layer 522 formed at an upstream portion and a downstream portion of the stream pollution material removal structure to mix the limestone to prevent the loss of the sand layer 521 Wherein the composite pollutant removal system comprises:

Images