KR101549161B1 - Non-point sources pollutants removal facility - Google Patents

Abstract

The present invention relates to a non-point pollution reducing facility. The purpose of the present invention is to remove oil received in a non-point pollution source by utilizing oil decomposing microorganisms, to adsorbs nutritive salts containing total nitrogen and total phosphorus by utilizing a functional ceramic, and to maintain a function of a ceramic carrier might be closed during a process of reducing pollutants by generating bubbles not only to improve the cleaning efficiency and but also to facilitate the maintenance of the ceramic carrier. The purpose of the present invention are achieved by including a settling tank receiving the non-point pollutants to the upper part of one surface and discharging the same to the lower part of the other surface; a carrier filling tank having a functional ceramic carrier layer and a porous ceramic carrier layer successively formed from the bottom surface to remove and discompose the oil and nutritive salts; and a cleaning tank discharging water purified by the carrier filling tank after temporarily storing and formed by a front dividing wall and a rear dividing wall. The functional ceramic carrier layer is installed at an interval from the bottom surface of the carrier filing tank, and the porous ceramic carrier layer is installed at an interval from the top surface of the functional ceramic carrier layer.

Description

{Non-point sources pollutants removal facility}

The present invention relates to a non-point pollution abatement facility, and more particularly, to a non-point pollution abatement facility that improves the efficiency of abatement of particulate matter contained in water pollutants that are unspecifically discharged at unspecified locations including cities, roads, farmland, mountainous areas, The present invention also relates to a non-point pollution abatement facility capable of simultaneously removing oil and nutrients, which were difficult to reduce, and performing maintenance efficiently.

As is well known, a nonpoint pollution source is a source of emission of water pollutants unspecified at unspecified sites such as cities, roads, farmland, mountainous areas, and construction sites. (Article 2 of the Act on the Preservation of Water Quality and Aquatic Ecosystems 2)

Non-point pollution sources are sources of pollutants such as organic matter, nutrients, oil, heavy metals, particulate matter, and harmful chemical substances, which are accumulated in the surface of dry land during the dry season. It is difficult to determine the appropriate treatment capacity and treatment method because the outflow and discharge route of the irrigation and discharge route is not clear and the generation amount and the discharge amount depend greatly on the weather conditions and the watershed characteristics. I was having difficulty in management.

Due to the unspecific characteristics of these non-point pollutants, the development of technologies to reduce non-point pollutants is limited to the reduction of particulate matter rather than reduction of the total pollutants discharged. And the installed abatement facilities are not effectively managed.

In recent years, interest in nonpoint pollution sources has been increasing, and studies have been conducted to reduce not only particulate matter but also other pollutants by using functional filter media or adsorbents, and suggestions for facilitating maintenance have been proposed.

For example, a non-point pollution abatement facility has been disclosed in Patent Application No. 10-2012-0047328.

In general, the conventional non-point pollution abatement facility includes a first pollution abatement unit having a screen and a filter unit connected to an inlet pipe on one side, and a second pollution abatement unit disposed adjacent to the first pollution abatement unit, A second pollution abatement portion communicating with the pollution abatement portion and provided with a water collecting filter means and a second pollution abatement portion adjacent to the second pollution abatement portion and communicating with the second pollution abatement portion through the lower second penetration hole, A third pollution abatement portion provided with a filter body; a treatment tank disposed adjacent to the third pollution abatement portion and connected to a discharge pipe so as to discharge pollutant reduced in pollution to the outside; Wherein the upstream end of the bypass pipe is positioned higher than the upper end of the filter unit, and the lower end of the bypass pipe is located higher than the upper end of the filter unit, The first through hole is formed to be positioned higher than the water collecting filter means and the lower second through hole is formed at a position lower than the upper end of the water collecting filter means.

However, in the conventional non-point pollution abatement facility, nitrogen or phosphorus can be removed by the filter unit provided in the first pollution abatement unit, but it is not included in the water pollutants introduced at unspecified locations There is a disadvantage that the removal of the oil is not done.

In addition, since the colloidal particles are deposited on the screen of the first pollution reduction unit, the filter unit of the filter unit, the collecting filter unit and the filter unit of the third pollution reduction unit according to the long- There is a problem in that it is very difficult and time-consuming to remove it.

Patent application No. 10-2012-0047328, filing date May 4, 2012 The name of the invention; Nonpoint pollution abatement facility

Accordingly, the present invention has been made in order to solve the above-described problems, and it is an object of the present invention to provide a non-point source pollutant which can be removed by utilizing oil-fractionated microorganisms and nutrients including total nitrogen and total phosphorus, The ceramic carrier which is not only adsorbed but also is likely to be obstructed in the course of the reduction of pollutants is provided with a nonpoint pollution abatement facility which can maintain its function by generating bubbles to improve backwash efficiency, It has its purpose.

It is still another object of the present invention to provide a non-point pollution abatement facility capable of increasing sedimentation efficiency of particulate matter during a short residence time by increasing the distance of irrigation by constructing a sedimentation tank with a double pipe structure.

Other objects of the present invention will become apparent as the description proceeds.

According to an aspect of the present invention, there is provided a nonpoint pollution abatement facility, comprising: a sedimentation tank provided to allow a nonpoint pollutant to flow into an upper part of a surface of a sedimentation tank, A carrier filling tank provided with a functional ceramic carrier layer and a porous ceramic carrier layer provided in a multilayer from the bottom so as to remove nitrogen and phosphorus as well as to remove and decompose nutrients and oils; A backwash water tank which is provided so as to be able to be drained after provisional storage is divided by a front end partition wall and a rear end partition wall, wherein the functional ceramic carrier layer is spaced apart from a bottom surface of the carrier filling tank, and the porous ceramic carrier layer comprises: And a plurality of spacers disposed apart from the upper surface of the layer It is gong.

In addition, between the bottom surface of the carrier filling tank and the bottom surface of the functional ceramic carrier layer, compressed air generated from a compressed air generating portion driven by the control of the control portion is sprayed to deposit the sediments deposited in the carrier filling tank over time, And the carrier layer is further provided with reverse detergent blower means capable of automatically discharging foreign matter adhering to the functional ceramic carrier layer to be discharged.

As described above, according to the nonpoint pollution abatement facility of the present invention, the oil introduced into the nonpoint pollution source can be removed by utilizing the oil fractionation microorganisms, and the nutrients including total nitrogen and total phosphorus are utilized by using functional ceramics The ceramic carrier which is not only adsorbed but may be obstructed in the process of reducing the pollutants generates bubbles to improve the backwash efficiency and thus the function thereof can be maintained and the maintenance can be facilitated.

As described above, according to the nonpoint pollution abatement facility of the present invention, the sedimentation tank has a double pipe structure, thereby increasing sedimentation distance and raising sedimentation efficiency of particulate matter during a short residence time.

1 is a cross-sectional view illustrating a nonpoint pollution abatement facility according to the present invention.
2 is a plan view showing a nonpoint pollution abatement facility according to the present invention.
3 is a perspective view showing a separation plate of a nonpoint pollution abatement facility according to the present invention.
4 is an enlarged view showing a reverse water discharge air lift of the nonpoint pollution abatement facility according to the present invention.
FIG. 5 is an enlarged view showing a reverse water inflow pipe of the nonpoint pollution abatement facility according to the present invention.
6 is an electron micrograph showing a cross section of a functional ceramic carrier of a nonpoint pollution abatement facility according to the present invention.
FIG. 7 is an electron micrograph showing a state in which oil-decomposing microorganisms are collectively fixed on a porous carrier of a non-point pollution abatement facility according to the present invention.

Hereinafter, an embodiment of the non-point pollution abatement facility according to the present invention will be described in detail.

First, it should be noted that, in the drawings, the same components or parts have the same reference numerals as much as possible. In describing the present invention, a detailed description of known functions and configurations incorporated herein will be omitted so as not to obscure the gist of the invention.

As shown in the drawing, the non-point pollution abatement facility 100 according to the present invention includes a sedimentation tank 110 provided to allow a non-point pollutant to flow into the upper part of one surface and to be discharged to the lower part of the surface, The functional ceramic carrier layer 124 and the porous ceramic carrier layer 126 are provided in a multi-layered structure from the bottom surface so as to remove nitrogen and phosphorus contained in the contaminants and to remove and decompose nutrients and oils, And a backwash water tank 130 provided for draining the purified water by the carrier filling tank 120 after being temporarily stored is divided by the front end partition wall 103 and the rear end partition wall 104 The functional ceramic carrier layer 124 is spaced apart from the bottom surface of the carrier filling tank 120. The porous ceramic carrier layer 126 is spaced apart from the top surface of the functional ceramic carrier layer 124, .

Between the bottom surface of the carrier filling tank 120 and the bottom surface of the functional ceramic carrier layer 124, the compressed air generated from the compressed air generating portion 140 driven by the control of the control portion is injected to the surface The sediment deposited on the carrier filling tank 120 and the porous ceramic carrier layer 126 according to the present invention are further provided with reverse detergent blower means capable of automatically discharging foreign material adhering to the functional ceramic carrier layer 124 and discharging the foreign material.

Hereinafter, the non-point pollution reduction facility according to the present invention will be described in detail with reference to the accompanying drawings.

1 and 2, the sedimentation tank 110 of the non-point pollution abatement facility according to the present invention may be divided into a separate part of the sedimentation tank 120 by the shear partition wall 103, A manhole (102) is formed on the upper surface to allow the suspended particles and precipitated particles to be periodically removed from the upper surface. do.

In addition, the sedimentation tank 110 is connected to the carrier filling tank 120 through the emergency sidewall pipe 107 fixed to the upper end of the inner surface of the front end partition wall 103 so as to increase the sedimentation distance of the non- And the other end is inserted into the inner side of the outer tube 111 and the other end is connected to the front end dividing wall 111 A plurality of internal pipes 112 are provided so as to communicate with the lower portion of the carrier filling tank 120 through the water supply sleeve 109 fixed to the lower end of the carrier filling tank 120.

That is, the precipitation rate of the precipitated particles in proportion to the square of the particle diameter is proportional to the water surface area loading rate in the process of introducing the non-point pollutant into the sedimentation tank 110 with rainfall. Therefore, the sedimentation rate of the sedimentation rate is higher than that of the surface loading rate. However, the sedimentation rate of the sedimentation rate can not guarantee the sedimentation efficiency.

Therefore, if the surface sedimentation rate is lowered to lower the total sedimentation limiting velocity, the size of the sedimentable limiting particles may be reduced in proportion to the square root of the sedimentation velocity. Thus, in the present invention, the sedimentation distance is increased Thereby solving the above problem.

More specifically, the sediment particles introduced through the storm inflow pipe 101 are gradually moved toward the rear end lower side of the sedimentation tank 110 along with the gravity sedimentation and the fluid flow, 112 and the outer tube 111. As a result, the sedimentation distance is increased and only the particles larger than the gravitational force and the fluid friction resistance float up to the inside of the inner tube 112, And the remaining particles are again settled and deposited at the bottom of the settling tank 110 and periodically removed through the maintenance and management manhole 102. [

The outer tube 111 and the inner tube 112 are installed in pairs so as to increase the sedimentation efficiency. The length of the inner tube 112 should be equal to the target water level, The extension length of the inner tube 112 should be as close as possible to the horizontal portion of the inner tube 112.

The upper part of the outer tube 111 is fixed to the upper end of the front end dividing wall 103 at a height sufficiently higher than the target water level and is designed as a structure capable of passing through the carrier filling tank 120 by the emergency sidewall 107 And discharges the water from the sedimentation tank (110) to the carrier filling tank (120) when flowing more than the flow rate.

The inner tube 112 is installed at a sufficient height not to be buried in the sediment at the lower end of the front end partition wall 103 but is installed at the lower end of the functional ceramic carrier filling portion supporting plate 122 to be described later, ) Is fixed to the lower end of the carrier filling tank 120 through the through-flow sleeve 109.

The carrier filling tank 120 is formed at the rear end of the settling tank 110 by the front end dividing wall 103 to remove nitrogen and phosphorus contained in nonpoint pollutants flowing through the inner pipe 112, And is capable of removing and decomposing salts and oils.

1 and 2, the carrier filling tank 120 is formed at the rear end of the settling tank 110, and the manhole 102-1 is formed on the upper surface thereof. The nitrogen and phosphorus contained in the non-point pollutants flowing through the inner pipe 112 separated from the bottom surface of the carrier filling tank 120 by being passed through the plurality of carrier supports 121 and being fixed via welding or screws. A functional ceramic carrier support layer 122 and a functional ceramic carrier support layer 124 filled with a functional ceramic carrier are formed on the functional ceramic carrier support layer 124. The space 123 is formed on the functional ceramic carrier layer 124, The bottom surface of which is fixed to the top surface of the plurality of support supports 121 through welding or screws so as to be able to remove and decompose nutrients and oils, and a porous ceramic support support plate 125, Ceramic substrates porous ceramic carrier has a porous ceramic carrier layer 126 filled in the filled network is made is formed.

The sludge settles on the bottom surface of the carrier filling tank 120 through one end of the porous ceramic carrier layer 126 of the functional ceramic carrier layer 124, And a drawing guide tube 129 is further provided so as to be pulled out through a through hole (not shown).

3, the functional ceramic carrier support plate 122 and the porous ceramic carrier support plate 125 can support the functional ceramic carrier support network and the porous ceramic carrier support network, respectively, while being permeable to water and air, A plurality of holes are provided in the perforated plate.

The functional ceramic carrier filled in the functional ceramic carrier filler network 124 is configured to be able to remove nitrogen and phosphorus contained in the non-point pollutant material. In the functional ceramic carrier, 60 to 70 parts by weight of a mixture of yellow clay and clay at a ratio of 6: 4, 5 to 18% by weight of raised sludge, 5 to 18 parts by weight of molasses, 15 to 20 parts by weight of zeolite and 2 to 3 by weight And the mixture is fired in a porous form as shown in Fig. 6 through a firing machine. Such a functional ceramic carrier is not limited to the above-mentioned constitution, and a well-known one may be used.

As shown in FIG. 7, the porous ceramic carrier packed in the porous ceramic carrier filler network of the porous ceramic carrier layer 126 can be obtained by oil-dividing the functional ceramic carrier of the functional ceramic carrier layer 124, The microorganism is dipped into the oil-degrading microorganism of any one of Acinetobacter sp. Or Pseudomonas sp. Or Yeast for 20 to 30 hours so that the oil-degrading microorganism is entrapped and fixed in the functional ceramic carrier.

Meanwhile, the support member 121 has a rigid structure that can sufficiently support the functional ceramic support 124 and the oil-decomposing microorganism-fixing porous ceramic support 126 thereon, and may be made of reinforced concrete, A steel structure, a plastic structure, and the like, and the height thereof is extended up to the oil-dispersed microorganism-fixed porous ceramic support plate 125.

The space 123 is formed between the functional ceramic substrate layer 124 and the porous ceramic substrate layer 126 to prevent the functional ceramic substrate 122 from flowing through the reverse osmosis water and back- In order to sufficiently secure the expansion space of the carrier 124.

The drawing guide pipe 129 serves not only to guide the drawing pipe for mechanically drawing the sedimentation sludge deposited on the lower portion of the carrier filling tank 120 but also for the maintenance of the carrier filling tank 120 It can also be applied to discharge stormwater.

As shown in FIGS. 1 and 2, the sewage backwash water tank 130 and the backwash water tank 130 are formed at the rear end of the carrier filling tank 120 by the rear end dividing wall 104, the manhole 102-2 is formed at the upper surface, The processing water flow pipe 106 is installed at the upper end of the separation wall 104 so that the treated water treated by the carrier filling tank 120 can be introduced into the upper end of the separation wall 104, An outflow pipe 105 is formed.

The reverse centrifugal blower means that the non-point pollutant is treated with the non-point pollution reducing facility according to the present invention for a long time, the colloidal particles which are not completely removed from the sedimentation tank 110, the functional ceramic carrier layer 124, The microorganism organisms that are excessively proliferated in the carrier layer 126 wrap the outside of the carrier of the functional ceramic carrier layer 124 and the porous ceramic carrier layer 126 and pressurized air is supplied to the inside of the carrier charging tank 120 And is capable of being sprayed to the bottom surface side.

That is, as shown in FIGS. 1 and 2, and FIGS. 4 and 5, the reverse detergent blower is driven in response to the control of the controller 141 according to an operator's operation, A compressed air generating unit 140,

A compressed air transfer pipe 142 having one end connected to the outlet side of the compressed air generating unit 140 and the other end piped to the bottom surface of the backwash water tank 130,

A reverse osmosis air lift 133 connected at one end to the other end of the compressed air transfer pipe 142 to supply treated water stored in the backwash water tank 130 together with compressed air,

One end of the reverse osmosis air lift 133 is connected via a check valve 134 and the other end of the reverse osmosis air lift 133 is connected to a lower portion of the functional ceramic carrier layer 124 provided in the carrier filling tank 120, And a backwash water pipe (131) provided so as to discharge the treated water together with the compressed air by being piped.

One end is fixedly connected to the other end of the compressed air transfer pipe 142-1 branched to the compressed air transfer pipe 142 so as to be connected to the upper portion of the porous ceramic substrate layer 126 of the carrier filling tank 120 And a reverse water discharge air lift 128 is further installed to discharge foreign substances that have been discharged at one end and piped to the outside at the other end.

At this time, the lower end of the reverse water discharge air lift 128 is provided in the shape of a canopy 127 in order to facilitate the collection of the separated foreign matter.

Meanwhile, the reverse water wash air lift 133 and the reverse water wash water discharge air lift 128 are paired and installed in the same standard, and a plurality of them are installed according to the scale of the facility.

The backwash water outlet 132 is directed toward the bottom surface of the carrier filling tank 120 to prevent deposits from depositing in the backwash water pipe 131 and to prevent the sediment from flowing and fixing have.

When the control unit 141 is manually operated, compressed air is generated from the compressed air generating unit 140, and the generated compressed air flows along the compressed air transfer pipe 142 And flows into the washwater air lift 133 to form a strong air flow.

Since the air flow lowers the pressure of the surrounding air, the water around the reverse osmosis air lift 133 piped to the lower part of the backwash water tank 130 is sucked into the reverse osmosis air lift 133 by the pressure difference, The water flows into the water pipe 131 and is discharged to the lower portion of the carrier filling tank 120 through the backwash water outlet 132 provided in the vertical downward direction with respect to the bottom surface of the carrier filling tank 120. Thereafter, The functional ceramic carrier layer 124 and the porous ceramic carrier layer 126 are desorbed by flowing between the functional ceramic carrier layer 124 and the porous ceramic carrier layer 126.

The backwash water discharge port 132 is directed downward so as to prevent deposition of sediments in the backwash water pipe 131 and to prevent sediment flowing below the backwash water pipe 131 from flowing and fixing .

A check valve 134 is provided at the lower end of the reverse water wash 133 to prevent the backflow of the water from the carrier filling tank 120 to the backwash water tank 130 during non-backwashing.

In the upper part, the foreign matter discharged from the upper part is sucked into the canopy 127 by the retro-seawater discharge air lift 128 and discharged through a reverse water discharge pipe (not shown) And then discharged to the outside of the nonpoint pollution facility.

During the backwashing, the foreign matter is desorbed and rises to the upper portion of the carrier filling tank 120 along with a strong upward flow. Since the backwash air may flow into the backwash water tank 130 along the treatment wastewater flow pipe 106, It is preferable that the backwash water containing the foreign matter is supplied to the backwash water discharge air lift 128 simultaneously with the lift 133 so that the backwash water can be discharged to the outside without overflowing into the backwash water tank 130.

The backwash water discharge air lift 128 is installed at the lower end of the water supply sleeve 106 to prevent backwash water containing foreign matter from being introduced into the backwash water tank 130.

The foregoing description is merely illustrative of the technical idea of the present invention and various changes and modifications may be made by those skilled in the art without departing from the essential characteristics of the present invention. Therefore, the embodiments disclosed in the present invention are intended to illustrate rather than limit the scope of the present invention, and the scope of the technical idea of the present invention is not limited by these embodiments. The scope of protection of the present invention should be construed according to the following claims, and all technical ideas within the scope of equivalents should be construed as falling within the scope of the present invention.

100: Nonpoint pollution abatement facility 110: Settling tank
120: Carrier filling tank 130: Backwash water tank
101: inlet pipe 102: manhole
103: shear partition wall 104: rear partition wall
105: discharge pipe 106: treated water fall pipe
107: Emergency sewer pipe 108: Reverse sewerage inflow
109: water supply sleeve 111: outer tube
112: inner tube 121: support
122: Functional ceramic support support plate 123: Space
124: Functional ceramics carrier 125: Oil-immobilized microorganism carrier support plate
126: Oil-immobilized microorganism carrier 127: Reverse osmosis effluent inlet
128: Discharge of stationary water Air lift 129: Drawing guide tube
131: Reverse osmosis water inlet pipe 132: Reverse osmosis water outlet port
133: Reverse osmosis inflow air lift 134: Reverse osmosis inflow inlet check valve
140: compressed air generator 141:
142: Compressed air transfer pipe

Claims (8)

In a nonpoint pollution abatement facility,
A double pipe sedimentation tank 110 provided to allow the non-point pollutant to flow into the upper part of the one surface and to discharge the non-point pollutant to the lower part of the surface;
The functional ceramic carrier layer 124 and the porous ceramic carrier layer 126 are separated from each other to remove nitrogen and phosphorus contained in the non-point pollutant introduced from the dual-pipe-settling tank 110, as well as to remove and decompose nutrients and oils, A carrier filling tank 120 provided in a multiple layer from a surface;
A backwash water tank 130 provided to be able to temporarily store and purify water purified by the carrier filling tank 120 is divided by the front end partition wall 103 and the rear end partition wall 104,
The functional ceramic carrier layer 124 is spaced apart from the bottom surface of the carrier filling tank 120. The porous ceramic carrier layer 126 is spaced apart from the top surface of the functional ceramic carrier layer 124,
The duplex pipe settling tank 110 is formed with a separate space portion separated from the carrier filling tank 120 by the front end dividing wall 103 and has an excellent inflow pipe A manhole 102 is formed on the upper surface so as to periodically remove suspended solids and sediment particles. In order to increase the settling distance of the nonpoint pollutant introduced along with the rainfall, An outer pipe 111 connected to one end of the upper part of the carrier filling tank 120 through an emergency sidewall pipe 107 fixed to the side upper end and bent at the other end to the bottom surface side of the double pipe settling tank 110, The other end of the inner tube is connected to the lower portion of the carrier filling tank 120 through a water supply sleeve 109 fixed to the lower end of the front end dividing wall 103 112) are provided in a plurality of Point Pollution Reduction Facility.
The method according to claim 1,
Between the bottom surface of the carrier filling tank 120 and the bottom surface of the functional ceramic carrier layer 124, compressed air generated from the compressed air generating portion 140 driven by the control of the control portion is injected, Wherein the sediment deposited on the tank (120) and the porous ceramic carrier layer (126) are further provided with reverse detergent blower means capable of automatically discharging foreign matter adhering to the functional ceramic carrier layer (124) Pollution abatement facility.
delete In a nonpoint pollution abatement facility,
A double pipe sedimentation tank 110 provided to allow the non-point pollutant to flow into the upper part of the one surface and to discharge the non-point pollutant to the lower part of the surface;
The functional ceramic carrier layer 124 and the porous ceramic carrier layer 126 are separated from each other to remove nitrogen and phosphorus contained in the non-point pollutant introduced from the dual-pipe-settling tank 110, as well as to remove and decompose nutrients and oils, A carrier filling tank 120 provided in a multiple layer from a surface;
A backwash water tank 130 provided to be able to temporarily store and purify water purified by the carrier filling tank 120 is divided by the front end partition wall 103 and the rear end partition wall 104,
The functional ceramic carrier layer 124 is spaced apart from the bottom surface of the carrier filling tank 120. The porous ceramic carrier layer 126 is spaced apart from the top surface of the functional ceramic carrier layer 124,
The carrier filling vessel 120 is formed at the rear end of the dual pipe settling tank 110 and has a manhole 102-1 formed on the upper surface thereof and a plurality of carrier supports 121, The functional ceramic carrier supporting plate 122 and the functional ceramic carrier supporting net 122 are separated from the bottom surface of the carrier filling tank 120 so that nitrogen and phosphorus contained in the non- And a space 123 is formed in the upper portion of the functional ceramic carrier layer 124 so as to be positioned on the upper surface of the plurality of carrier supports 121 The porous ceramic carrier support plate 125 and the porous ceramic carrier filler mesh are filled with the porous ceramic carrier so that the bottom surface is fixed by welding or screw to remove and decompose nutrients and oils Castle ceramic substrate layer (126) having a boiling point pollution abatement facility, characterized in that formed is formed.
5. The method of claim 4,
The sludge settles on the bottom surface of the carrier filling tank 120 through one end of the porous ceramic carrier layer 126 of the functional ceramic carrier layer 124 and is drawn through the drawing tube Wherein the guide pipe (129) is further provided with a guide pipe (129).
In a nonpoint pollution abatement facility,
A double pipe sedimentation tank 110 provided to allow the non-point pollutant to flow into the upper part of the one surface and to discharge the non-point pollutant to the lower part of the surface;
The functional ceramic carrier layer 124 and the porous ceramic carrier layer 126 are separated from each other to remove nitrogen and phosphorus contained in the non-point pollutant introduced from the dual-pipe-settling tank 110, as well as to remove and decompose nutrients and oils, A carrier filling tank 120 provided in a multiple layer from a surface;
A backwash water tank 130 provided to be able to temporarily store and purify water purified by the carrier filling tank 120 is divided by the front end partition wall 103 and the rear end partition wall 104,
The functional ceramic carrier layer 124 is spaced apart from the bottom surface of the carrier filling tank 120. The porous ceramic carrier layer 126 is spaced apart from the top surface of the functional ceramic carrier layer 124,
Between the bottom surface of the carrier filling tank 120 and the bottom surface of the functional ceramic carrier layer 124, compressed air generated from the compressed air generating portion 140 driven by the control of the control portion is injected, The sediment deposited on the tank 120 and the porous ceramic carrier layer 126 are further provided with reverse detergent blower means capable of automatically discharging foreign matter adhering to the functional ceramic carrier layer 124 to be discharged,
The reverse detergent blowing means includes a compressed air generating unit 140 which is driven in response to the control of the control unit 141 so as to be capable of supplying compressed air and one end connected to the outlet side of the compressed air generating unit 140 The other end of which is connected to the bottom of the backwash water tank 130 and connected to the other end of the compressed air transfer pipe 142 so as to be stored in the backwash water tank 130 together with the compressed air, And the other end is connected to the other end of the backwash air lift 133 via the check valve 134. The other end of the air lift 133 is connected to the carrier filling tank 120 And a backwash water pipe (131) provided in the lower portion of the installed functional ceramic carrier layer (124) so as to be capable of spraying treated water together with compressed air by forming a plurality of reverse water washout openings (132) Pollution abatement facility.
The method according to claim 6,
One end is fixedly connected to the other end of the compressed air transfer branch pipe 142-1 branched to the compressed air transfer pipe 142 so that one end is positioned at the upper portion of the porous ceramic carrier layer 126 of the carrier filling tank 120 And the other end is further provided with a reverse water discharge air lift (128) for discharging the foreign substances discharged to the outside.
8. The method of claim 7,
Wherein the lower end of the backwater discharge air lift (128) is provided in the form of a canopy (127) in order to facilitate collection of foreign matter that has been desorbed.

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