KR101129407B1 - Clarification apparatus for nonpoint source pollutants - Google Patents

Abstract

The present invention relates to a non-point source purification and filtering device, comprising: a first container provided with a first receiving space for accommodating contaminated water, and a contaminated water installed in the first container for supplying contaminated water to the first receiving space The second container is provided in the inlet, the first receiving space, the second receiving space for accommodating the contaminated water therein, the outer circumferential surface is formed with a plurality of through-holes to allow the contaminated water contained in the first receiving space And a plurality of filter media in which microorganisms are accommodated in the second container to filter the contaminated water introduced into the second accommodation space, and an air injection portion installed in the second container to inject air into the second accommodation space; A discharge pipe communicating with the second accommodation space and discharging the contaminated water purified by microorganisms to the outside is provided.

The non-point source purification and filtration apparatus according to the present invention supplies oxygen to the inside of the container in which the filter medium is accommodated, so that the microorganisms inhabiting the filter medium can decompose pollutants in the contaminated water to increase the purification efficiency of the contaminated water. .

Nonpoint Source Filter, Nonpoint Source Filter and Filter, Nonpoint Source Filter

Description

Clarification apparatus for nonpoint source pollutants

The present invention relates to a non-point source purification and filtration apparatus, and more particularly, to a non-point source purification and filtration apparatus for receiving and purifying contaminated water introduced from the non-point source.

Non-point source is a pollutant exposed to the surface during rainfall and rainwater flows into sewage pipes, which is difficult to treat because it has a characteristic that concentration is generated early in the rainfall.

In particular, when the nonpoint source contained in the initial rainwater enters public waters, it causes pollution of rivers and lakes, and penetrates into the underground, which is one factor causing pollution of groundwater resources. Therefore, contaminants introduced with the initial stormwater should be discharged into the discharge water after a certain removal process.

Therefore, the pollutants of nonpoint source are removed by various methods. The initial rainwater treatment device for treating the pollutants introduced with the rainwater includes various initial rainwater treatment devices such as storage type such as artificial wetland, filtration type such as filtration tank, and device type such as swirl treatment device. . Each of these early stormwater treatment units has advantages and disadvantages, and each of them has different application methods depending on the characteristics of the watershed to which the initial stormwater treatment units are applied.

Korean Patent Publication No. 10-0900054 discloses a non-point source treatment apparatus.

The non-point source treatment apparatus includes a chamber, a screen installed inside the chamber, a guide part formed to extend downwardly at the lower end of the screen, an installation member installed at an upper portion of the screen, and a filtration member provided between the screen and the installation support member. .

However, in order to decompose contaminants in the contaminated water, the microorganisms living in the filter medium require a sufficient amount of oxygen for the microorganisms to operate. The non-point source treatment device has a sealed screen in which the filter medium is installed by the chamber. Since the air supply is not easy, there is a disadvantage in that the filtration efficiency is lowered.

The present invention was devised to improve the above problems, and an object thereof is to provide a non-point source purification and filtration device for supplying oxygen inside the device so that microorganisms can smoothly decompose contaminants in contaminated water. .

The non-point source purification and filtration apparatus according to the present invention for achieving the above object is provided with a first container provided with a first accommodation space for accommodating contaminated water therein, and installed in the first container, to the first accommodation space. A contaminant inlet for supplying contaminated water and a second accommodating space provided in the first accommodating space and accommodating contaminated water are provided therein, and contaminated water accommodated in the first accommodating space may flow into the outer circumferential surface thereof. A second filter having a plurality of through holes formed therein, a plurality of filter media in which microorganisms are collected in the second container to filter the contaminated water introduced into the second receiving space, and installed in the second container. And an air inlet for injecting air into the second accommodation space, and a discharge pipe communicating with the second accommodation space to discharge the contaminated water purified by the microorganisms to the outside.

Preferably, the air injection unit includes an air injection pipe installed at the second container so that one end thereof communicates with the second accommodation space, and an air pump installed at the air injection pipe to supply air to the second accommodation space. .

The air injection unit is installed in the air injection pipe, further comprising a washing water supply unit for supplying the wash water to the second accommodation space,

The washing water supply unit includes a washing water tank containing washing water, one end of which is connected to the washing water tank, and the other end of the washing water supply pipe is connected to the air injection pipe, and installed in the washing water supply pipe to pump the washing water contained in the washing water tank. 2, it is provided with a washing water supply pump for supplying in the receiving space.

The contaminated water inlet is a contaminated water tank that collects and accommodates contaminated water, one end is connected to the first receiving space, and the other end is connected to the contaminated water tank, and a center line of one end is at the center of the first container. It is preferable to further include an inlet pipe installed in the first container spaced apart in the horizontal direction, and a contaminated water supply pump installed in the inlet pipe to pump contaminated water contained in the contaminated water tank to supply the first container to the first container. Do.

The first container further includes a sludge discharge pipe communicating with the first accommodation space and installed on the bottom surface of the first container to discharge the precipitate precipitated in the first accommodation space to the outside.

The non-point source purification and filtration apparatus according to the present invention supplies oxygen to the inside of the container in which the filter medium is accommodated, so that the microorganisms inhabiting the filter medium can decompose pollutants in the contaminated water to increase the purification efficiency of the contaminated water. .

Hereinafter, a non-point source purification and filtration apparatus according to a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings.

1 to 2 show a nonpoint source purification and filtration device 10 according to the present invention.

Referring to the drawings, the non-point source purification and filtration apparatus 10 includes a first container 20 for receiving contaminated water, a contaminated water supply unit 30 for supplying contaminated water to the first container 20, and a first The second container 40 installed in the container 20, the plurality of filter media 50 accommodated in the second container 40, and the air injection unit 60 for supplying air into the second container 40. And a purified water discharge pipe 70 for discharging the purified polluted water to the outside.

The first container 20 is formed in a cylindrical shape provided with a first receiving space 21 for accommodating the polluted water to be purified therein. On the bottom surface of the first container 20, a sludge discharge pipe 22 communicated with the first receiving space 21 to discharge the precipitate precipitated in the first container 20 to the outside of the first container 20 is provided. It is installed.

At this time, the bottom surface of the first vessel 20 is preferably formed to be inclined toward the sludge discharge pipe 22 so that the precipitate can be easily discharged to the sludge discharge pipe 22.

In addition, the sludge discharge pipe 22 is provided with a discharge valve 23 to open and close the sludge discharge pipe 22. Although not shown in the drawings, unlike the present embodiment, the discharge valve 23 may be configured as an solenoid valve such as a solenoid so that an operator can easily operate it from a long distance.

On the other hand, the first container 20 is protruded to the upper inner wall of the first container 20 to form a purified water receiving space 25 that can accommodate the purified contaminated water in the upper side of the first receiving space ( The partition wall 24 which partitions 21 is further provided.

A through hole corresponding to the outer diameter of the second container 40 is formed at the center of the partition wall 24 so that the second container 40 to be described later is installed. Purified contaminated water passing through the second container 40 is introduced into the purified water receiving space 25 formed by the partition wall 24, and the purified contaminated water is discharged from the first container 20 through the discharge pipe 70. Discharged outside).

The contaminated water supply unit 30 is installed in the first container 20 to supply contaminated water to the first accommodation space 21. The contaminated water supply unit 30 includes a contaminated water tank (not shown) in which contaminated water is accommodated, an inflow pipe 31 connecting the contaminated water tank (not shown) and the first container 20, and installed in the inflow pipe 31. A contaminated water supply pump is provided.

The contaminated water tank (not shown) collects and receives rainwater that comes in with the pollutants exposed to the surface during rainfall.

The inlet pipe 31 is composed of a pipe formed with a flow path through which contaminated water can flow, one end of which is installed in the first container 20 so as to communicate with the first receiving space 21, and the other end is connected to the contaminated water tank. The contaminated water contained in the contaminated water tank (not shown) is conveyed.

At this time, one end of the inlet pipe 31 has a center line of the inlet pipe 31 so that the contaminated water injected into the first accommodation space 21 may be received while generating a vortex along the inner wall of the first container 20. It is preferable that the center of the container 20 is installed in the first container 20 at a position spaced apart at a predetermined interval in the horizontal direction.

The contaminants in the contaminated water are precipitated to the bottom surface of the first container 20 by the centrifugal force and gravity caused by the rotation of the contaminated water introduced into the first receiving space 21.

On the other hand, one end of the inlet pipe (31) is branched into a plurality is installed in the first container 20 of the position spaced apart from each other. The inflow pipe 31 branched apart from each other injects contaminated water into the first container 20 at different heights so that the contaminated water accommodated in the first accommodation space 21 may be rotated step by step according to the height of the contaminated water. To increase the centrifugal force.

The contaminated water pump 32 is installed in the inlet pipe 31 to pump contaminated water contained in the contaminated water tank (not shown) to supply the first container 20.

The contaminated water collected and received in the contaminated water tank (not shown) is pumped by the contaminated water pump 32 and injected into the first container 20 through the inlet pipe 31. At this time, the contaminated water injected into the first container 20 flows along the inner wall by the pumping force of the contaminated water pump 32 and rotates the contaminated water contained in the first container 20.

Hereinafter, the second container 40 according to the embodiment of the present invention will be described in detail.

The second container 40 is installed in the first accommodating space 21 and is formed in a cylindrical shape in which a second accommodating space 41 capable of accommodating rainwater is provided. At this time, the upper end of the second container 40 is installed in the through hole of the partition wall 24 so that the purified water receiving space 25 and the second receiving space 41 can communicate.

In addition, a mesh member 26 having a plurality of through holes formed at the upper end of the second container 40 to pass the purified contaminated water contained in the second container 40 and to prevent the inflow of the filter medium 50 to be described later is provided. It is installed.

A plurality of through-holes 42 are formed on the lower outer circumferential surface of the second vessel 40 so that the contaminated water contained in the first vessel 20 can flow into the second accommodation space 41.

The polluted water flowing while generating vortices along the inner wall of the first vessel 20 is introduced into the second vessel 40 through the through hole 42.

On the other hand, although not shown in the drawing, unlike the present embodiment, a plurality of through holes 42 are not formed on the outer peripheral surface of the lower end of the second container 40, but the second structure 40 has a mesh structure in which a plurality of through holes are formed. It may be formed as.

A plurality of filter media 50 is accommodated in the second container 40 to provide a habitat space for microorganisms to filter the contaminated water introduced into the second receiving space 41. The filter medium 50 is preferably formed with an uneven surface so that microorganisms can easily inhabit. The filter medium 50 is generally used in the prior art, and detailed description thereof will be omitted.

Referring to the air injection unit 60 according to an embodiment of the present invention in detail.

The air injection unit 60 is installed in the second container 40 to inject air into the second accommodation space 41. The air injection unit 60 includes an air injection pipe 61 installed in the second container 40 and an air pump 62 installed in the air injection pipe 61 to supply air.

The air injection pipe 61 is composed of a pipe provided with a flow path through which air can flow, and one end is installed in the second container 40 so as to communicate with the second accommodation space 41. At this time, one end of the air injection tube 61 is preferably formed to extend to a position adjacent to the bottom surface of the second container 40 in the vertical direction so that air can be easily supplied to the entire second accommodation space (41). Do.

Air supplied to the second accommodation space 41 through the air inlet tube 61 forms a fine bubble from the lower portion of the second container 40 and rises to a sufficient amount of oxygen for the microorganisms living in the second container 40. To supply.

The air pump 62 is installed in the air injection pipe 61, and supplies external air to the second accommodation space 41 through the air injection pipe 61.

On the other hand, Figure 3 shows another embodiment of the air injection unit 60.

Elements having the same function as in the above-described drawings are denoted by the same reference numerals.

Referring to the drawings, the air injection unit 60 is further provided with a washing water supply unit 65 is installed in the air injection pipe 61, supplying the washing water to the second receiving space (41).

The washing water supply unit 65 includes a washing water tank 66, a washing water supply pipe 67 installed between the washing water tank 66, and an air injection pipe 61, and a washing water supply pump 68 installed at the washing water supply pipe 67. do.

The wash water tank 66 accommodates a large amount of wash water injected into the second accommodation space 41.

The washing water supply pipe 67 is formed of a pipe in which a flow path through which the washing water flows is formed, one end of which is connected to the washing water tank 66, and the other end of the washing water supply pipe 67 is connected to the air injection pipe 61 so that the washing water has a second accommodation space. Are transferred to 41.

The washing water supply pump 68 is installed in the washing water supply pipe 67 to pump the washing water contained in the washing water tank 66 to be injected into the second receiving space 41.

The washing water received in the washing water tank 66 by the washing water supply pump 68 is pumped and introduced into the air injection pipe 61 along the washing water supply pipe 67, and the air transported along the flow path of the air injection pipe 61; It is injected into the second accommodation space 41 together.

Referring to the purified water discharge pipe 70 according to the present invention.

The purified water discharge pipe 70 is installed on the upper portion of the first container 20 so as to communicate with the purified water receiving space 25 and discharges the contaminated water decomposed by the microorganisms inhabiting the filter medium 50 to the outside. The end of the purified water discharge pipe 70 is preferably formed to extend downward by a predetermined length.

On the other hand, the above-mentioned non-point source purification and filtration device 10 may be used to purify contaminated water, as well as installed in the waste water treatment plant and water treatment plant as well as the operation of the non-point source.

Referring to the operation of the non-point source purification and filtration device 10 according to the present invention configured as described above in detail.

First, a contaminated water tank (not shown) collects and accepts contaminated water that flows along with contaminants exposed to the ground during rainfall. The contaminated water supply pump pumps contaminated water contained in the contaminated water tank and supplies the contaminated water to the first container 20 through the inlet pipe 31.

At this time, one end of the inlet pipe 31 is the inlet pipe 31 is installed in the first container 20 of the position in which the center line is spaced at a predetermined interval in the horizontal direction in the center of the first container 20, The contaminated water discharged into the first accommodating space 21 through 31 flows while generating a vortex along the inner wall of the first container 20. Contaminants in the contaminated water are precipitated to the bottom surface of the first vessel 20 by centrifugal force and gravity caused by the rotation of the contaminated water.

In addition, since one end of the inlet pipe 31 is branched into a plurality of parts and installed in the first container 20 at positions spaced apart from each other, the polluted water discharged through the inlet pipe 31 is accommodated inside the first container 20. As the water is rotated step by step, the centrifugal force of the contaminated water is increased.

On the other hand, the contaminated water from which the pollutant is removed is received into the second container 40 through the through hole 42 formed in the lower portion of the second container 40.

The contaminated water contained in the second container 40 is purified by microorganisms inhabiting the plurality of filter media 50. At this time, the air is supplied to the second container 40 through the air injection unit 60 to activate the activity of the microorganisms.

The air pump 62 of the air injection unit 60 pumps external air and supplies the external air to the second accommodation space 41 of the second container 40 through the air injection pipe 61. At this time, one end of the air injection pipe 61 is formed to extend to a position adjacent to the bottom surface of the second container 40 in the vertical direction.

Air supplied to the second accommodation space 41 through the air inlet tube 61 forms a fine bubble from the lower portion of the second container 40 and rises to a sufficient amount of oxygen for the microorganisms living in the second container 40. To supply.

The contaminated water purified by the microorganisms in the second container 40 is discharged into the second container 40 through the purified water discharge pipe 70.

The non-point source purification and filtration device 10 configured as described above supplies oxygen to the inside of the second container 40 in which the filter medium 50 is accommodated through the air injection unit 60, so that the microorganisms inhabiting the filter medium 50 By smoothly decomposing contaminants in the contaminated water has the advantage of increasing the purification efficiency of contaminated water.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is evident that many alternatives, modifications and variations will be apparent to those skilled in the art.

Therefore, the true scope of protection of the present invention should be defined only by the appended claims.

1 is a partial cross-sectional perspective view of a non-point source purification and filtration apparatus according to the present invention,

Figure 2 is a cross-sectional view of the non-point source purification and filtration of Figure 1,

3 is a cross-sectional view of another embodiment of a non-point source purification and filtration apparatus according to the present invention.

Claims (5)

A first container having a first accommodation space accommodating contaminated water therein; A contaminated water supply unit installed in the first container to supply contaminated water to the first accommodating space; A second container installed in the first accommodation space, and having a second accommodation space accommodating contaminated water therein, and having a plurality of through-holes formed at an outer circumferential surface thereof so that the contaminated water accommodated in the first accommodation space can be introduced; A plurality of filter media containing microorganisms accommodated in the second container and filtering contaminated water introduced into the second receiving space; An air injection unit installed in the second container and injecting air into the second accommodation space; And a purified water discharge pipe communicating with the second accommodation space and discharging the contaminated water purified by the microorganisms to the outside. The air injection unit An air injection pipe installed at the second container so that one end thereof communicates with the second accommodation space; An air pump installed in the air injection pipe to supply air to the second accommodation space; The air injection unit is installed in the air injection pipe, further comprising a washing water supply unit for supplying the washing water to the second accommodation space, The washing water supply unit A wash water tank containing wash water; One end is connected to the wash water tank, and the other end is a wash water supply pipe connected to the air injection pipe; And a washing water supply pump installed in the washing water supply pipe to pump the washing water contained in the washing water tank and to supply the washing water into the second accommodation space. delete delete The method of claim 1, The contaminated water supply unit A contaminated water tank which collects and accommodates contaminated water; An inlet pipe having one end connected to the first accommodation space and the other end connected to the contaminated water tank, the inlet pipe being installed in the first container such that the center line of the one end is horizontally spaced from the center of the first container; And a contaminated water supply pump installed in the inlet pipe and pumping contaminated water contained in the contaminated water tank to supply the first container. The method of claim 4, wherein The first container further comprises a sludge discharge pipe communicating with the first accommodation space and installed on the bottom surface of the first container to discharge the precipitate precipitated in the first accommodation space to the outside. Source purification and filtration.

Images