KR100987095B1 - Equipment for Purifying of River water quality using Soil and Method of Purifying River water quality using the same - Google Patents

Abstract

The present invention provides a device for water quality purification of rivers using riverbed alluvial and riverbed soil layers, and a method for water quality purification of rivers using the same. The water purification apparatus of the stream according to the present invention includes a stream water distribution unit and a treated water recovery unit, and the river water distribution unit includes a pump for pumping the river water; A first conduit for conveying pumped river water; And a plurality of outlets for equally supplying the transferred river water to the riverbed soil layer. The treated water recovery unit may include: a first horizontal collecting pipe which collects the treated water embedded in the lower bed alluvial bed and purified by the alluvial bed; A second horizontal collection pipe embedded in the riverbed soil layer to collect purified water through the riverbed soil layer; And a vertical sump collecting the treated water collected from the first and second horizontal sump tubes. According to the present invention, it is possible to increase the treatment capacity of the river, it is possible to effectively remove the contaminants contained in the river water by using the bed alluvial layer and riverbed soil layer. In addition, it is possible to minimize the elution of iron and manganese by shortening the residence time of the river water.

Riverbed filtration, riverbed alluvium, riverbed soil layer, river water purification

Description

Equipment for Purifying of River water quality using Soil and Method of Purifying River water quality using the same}

The present invention relates to a water purification apparatus of a river using soil and a water purification method of the river using the same, and more particularly, to a water purification apparatus of a river using filtration through an alluvial bed at the bottom of the river and a filtration through the soil layer of the stream side. It relates to a water purification method of rivers.

The river environment strengthened by the existing river-centered river maintenance and landscaping-centered river restoration project resulted in the reduction of residence time and the loss of self-cleaning capacity. In addition, it is not practical to apply the existing water treatment method to improve the water quality of the entire stream. Therefore, the demand for a natural water purification technology that can maintain the clean water quality on its own by restoring the natural purification capacity of the river is gradually increasing.

Water purification technologies using contact oxidation facilities, artificial wetlands, and artificial plant islands applied against this background have limitations in that they cannot sustain their functions during flooding or collapse of the facility itself. This is due to the limitation of the one-dimensional technology considering the river only, and to overcome this, a natural water purification method that can consider the watershed space including surface water, groundwater, land.

In this regard, the method of improving the water quality of rivers by river filtration (Korean Patent No. 10-0291223) is a method of removing organic matter and nitrogen in river waters by filtration and biological purification of soil microorganisms by using an alluvial bed of river bed. The demand is increasing as an environmentally friendly water purification method that takes into account water, groundwater and waterside space. However, since the treatment capacity is absolutely dependent on the permeability coefficient of the alluvial bed of the bed, it is necessary to increase the number of horizontal collection pipes in order to secure the capacity in the case of poor permeability, and to block the bed by long-term operation. ) Has the disadvantage of difficult to maintain driving.

In addition, when the moisture content in the soil is maintained in a saturated state for a long time, it is converted into a reducing environment in which dissolved oxygen and nitrate nitrogen are not present. There is a problem of causing chromaticity in the treated water.

The present invention has been made to solve the above problems, is not limited to the permeability coefficient of the riverbed, can effectively remove the contaminants contained in the river water, using a soil that can increase the treatment capacity of the river water Its purpose is to provide a large capacity water purification device for rivers.

It is another object of the present invention to provide a water purification method of river water using the above water purification device.

Water purification apparatus for rivers using the soil according to the present invention for achieving the above object includes a stream water distribution unit and treated water recovery unit.

The river water distribution unit, the pump is provided in the water of the river to pump the river water; A first water pipe connected to the pump and transferring the pumped river water; And a plurality of outlets for equally supplying the river water transferred from the first conduit to the riverbed soil layer. The river water supplied to the riverbed soil layer is purified by removing nutrients such as organic matter and nitrogen in the riverwater through filtration in the soil layer, adsorption to soil particles, and biological reaction of soil microorganisms.

The treated water recovery unit may include: at least one first horizontal collection pipe embedded in the alluvial bed of the riverbed and collecting the treated water purified by filtration, adsorption, and biological reaction while the river water passes through the alluvial bed of the bed; At least one second horizontal collecting pipe embedded in the lower soil layer to have a higher depth than the first horizontal collecting pipe and collecting the treated water purified through the lower soil layer; And a vertical sump collecting the treated water collected from the first and second horizontal sump tubes.

In the embodiment of the present invention, the plurality of outlets may be provided spaced apart from each other at twice the interval of the maximum outlet distance.

In an embodiment of the present invention, the first and second horizontal collection pipes may be embedded radially.

In an embodiment of the present invention, the treated water recovery unit, buried in the horizontal direction in connection with the vertical water collecting wells, connected to the second horizontal water collecting pipe to collect the treated water collected in the second horizontal water collecting pipe to the vertical It may further include a second water pipe for transporting to the sump.

In an embodiment of the present invention, the first horizontal collection pipe may be buried to have a diameter of 50 to 100 mm and a depth of 10 to 15 m.

In an embodiment of the present invention, the second horizontal collection pipe may be buried to have a diameter of 50 to 100mm and a depth of 5 to 10m.

In an embodiment of the present invention, the vertical water collecting well may have an inner diameter of 5 to 15m.

In an embodiment of the present invention, the bottom soil layer may be divided into a first soil layer above the groundwater surface and a second soil layer below the groundwater surface, and the first soil layer has a hydraulic conductivity of 0.1 cm / s or more. It may be modified with a slow filter sand to have. In addition, the first soil layer may be a mixture of the natural soil of humus, perlite, or zeolite to adsorb the harmful substances contained in the river water.

In an embodiment of the present invention, it may further comprise a vegetation composition in the surface layer of the bottom soil layer. The vegetation absorbs nitrogen and phosphorus present in the riverbed soil layer and removes contaminants through metabolic activity of microorganisms in the near-sphere.

In an embodiment of the present invention, further comprising a rainfall meter installed on one side of the vertical sump, the operation of the river water distribution unit may be turned on / off according to the accumulated rainfall amount measured in the rainfall meter.

In an embodiment of the present invention, further comprising a redox potential sensor installed in the bottom soil layer, the operation of the river water distribution unit can be turned on / off according to the redox potential value measured in the redox potential sensor. have.

In addition, the water purification method of the river using the water purification apparatus of the river is as follows.

Pumping the river water using a pump provided in the water of the river, and transfers the pumped river water to the riverbed soil layer using a first water pipe connected to the pump. Each of the first water pipes is connected to each other and is evenly supplied to the riverbed soil layer by using a plurality of water outlets spaced apart from each other. The river water supplied to the riverbed soil layer is purified through filtration, adsorption and biological reaction in the riverbed soil layer.

Next, by using the first horizontal collection pipe embedded in the bed of the bed of river bed, the stream water is collected through the filter bed, adsorption, and biological reaction while the stream is passed through the bed of bed of the bed. At the same time, the treated water is collected through the lower soil layer using a second horizontal collecting tube embedded in the lower soil layer at a higher depth than the first horizontal collecting tube.

Thereafter, the treated water collected from the first and second horizontal collecting pipes is stored using a vertical water collecting well embedded in the vertical direction in the bottom soil layer.

In addition, the stream water purification method according to the present invention may further include the step of measuring the cumulative rainfall using a rainfall meter installed on one side of the vertical sump, and on / off the operation of the river water distribution unit according to the cumulative rainfall amount. Can be.

Furthermore, in the stream water purification method according to the present invention, the redox potential value is measured using a redox potential sensor installed in the soil layer of the riverbank, and the on / off operation of the stream water distribution unit is performed according to the redox potential value. The process may further include.

The water purification method of the river using the water purification apparatus of the river using the soil according to the present invention has the following effects.

By using the water purification apparatus of the stream according to the present invention, it is possible to produce about 50 m ³ / day · m of treated water per unit length of the horizontal collection pipe, and the amount of filtered water compared to the existing method of improving the quality of the river using the river filtration. Can be increased more than twice.

In addition, it is possible to remove various kinds of contaminants in the river water through the physical removal method such as filtration, adsorption, sedimentation, and biological degradation under various oxidation and reduction conditions using the bed alluvial bed and the bottom soil layer.

Furthermore, intermittent supply of river water to riverbed soil layers prevents the loss of structures caused by river flooding during rainfall, and allows nonpoint pollutants to enter the riverbed soil layers, thereby allowing nonpoint pollutants such as nutrients, hydrocarbon-based pollutants, and heavy metals. It is possible to drastically improve the water quality of rivers through treatment of sewage.

In addition, it is possible to minimize the elution of iron and manganese, which is a problem in the existing river filtration, by shortening the residence time of the river water and intermittent supply of the river water.

Hereinafter, a large-scale water purification apparatus for rivers using soil and water purification methods for rivers using the same will be described in detail with reference to the accompanying drawings.

1 is a cross-sectional view of a water purification apparatus of a river using soil according to an embodiment of the present invention, Figure 2 is a plan view of a water purification apparatus of a river using soil according to an embodiment of the present invention.

1 to 2, the water purification apparatus of the river using the soil according to an embodiment of the present invention is the river water distribution unit 110 and the bed alluvial layer 202 installed on the upper soil layer (203, 205) The basic principle is that the treated water recovery part embedded in the lower and lower soil layer (203, 205) of the bottom) and the water in the stream 201 is purified while passing through the lower bed alluvial layer (202) and the lower soil layer (203, 205), respectively. Shall be.

Meanwhile, in the present invention, the bottom soil layer is divided into a first soil layer 203 above the groundwater surface 204 and a second soil layer 205 below the groundwater surface 204 based on the groundwater surface 204. . The first soil layer 203 may have a lower moisture content and a higher oxygen content than the second soil layer 205.

The stream water distribution unit 110 of the stream water purification apparatus according to the present invention is made for filtration in the riverbed soil layer (203, 205), adsorption to soil particles and water purification of the river through biological decomposition of soil microorganisms. 1 serves to supply river water to the soil layer (203).

In order to perform the above role, the river water distribution unit 110 includes a first pump 111, a first water pipe 112 and a plurality of water outlet 113.

The first pump 111 is provided in the water of the river 201 to pump the river water. The first water pipe 112 is connected to the first pump 111 and extends to the upper portion of the first soil layer 203 to transport the pumped river water. The plurality of outlets 113 uniformly supplies the river water transferred from the first water pipe 112 to the first soil layer 203.

The plurality of outlets 113 are spaced apart from each other along the first conduit 112 and are installed on the first conduit 112. The plurality of outlets 113 are preferably spaced apart at twice the maximum water discharge distance in order to evenly supply the river water to the first soil layer 203. A sprinkler may be used as the plurality of outlets 113.

The amount of spraying the river water by the river water distribution unit 110 varies depending on the properties of the first soil layer 203 and the design flow rate. It is preferable to have a spreading amount of 500 L / day · m ² or more per unit area of.

In the case of a river having a high bed coefficient, the first soil layer 203 is known to have a good water permeability of sand deposits due to the flooding of the river and the sedimentation action during the concentrated rainfall period. Therefore, while the river water supplied from the river water distribution unit 110 passes through the first soil layer 203, particulate contaminants in the river water may be removed through filtration into the soil gap. In addition, aerobic microorganisms attached to soil particles decompose organic matters in river water using electron acceptors supplied through dissolved oxygen in the river water and oxygen transfer from the atmosphere, and convert ammonia nitrogen in water into nitrate nitrogen through nitrification. Do it.

Below a predetermined depth of the second soil layer 205 is maintained in an anaerobic or anaerobic state in which all dissolved oxygen is consumed by a biological reaction, and in this condition, nitrate nitrogen may be removed from the water by biological denitrification.

On the other hand, when the soil penetration coefficient is low, the application of this method leads to a long residence time due to the infiltration rate of river water into the groundwater being too low. It causes a vicious cycle of worsening SAT. Therefore, the first soil layer 203 preferably has a hydraulic conductivity of 0.1 cm / s or more, and if the first soil layer 203 in a natural state does not satisfy this, the first soil layer 203 has a hydraulic conductivity of 0.1 cm / s or more. The surface of the soil layer 203 may be modified by slow filtration sand or the like. The slow filtration yarn is preferably supplied with a uniform coefficient of 2 or less in order to satisfy sufficient hydraulic conductivity.

In addition, some rivers may contain trace harmful substances such as heavy metals and hydrocarbons in water. In this case, the adsorption capacity for trace harmful substances is known to be excellent as long as the conditions of the uniformity coefficient are satisfied together with the slow filtration yarn. It is possible to mix the natural materials such as humus, perlite, zeolite and the like with the first soil layer 203.

In addition, by planting vegetation that can grow in the sandy soil on the upper portion of the first soil layer 203, it is possible to achieve the removal of pollutants and landscaping effect according to the growth of the plant. The vegetation may be a land plant or an aquatic plant, a species that can adapt to both dry and wet environments, is resistant to harmful substances, and corresponds to evergreen trees with moderate growth rate. Such vegetation absorbs nutrients such as ammonia nitrogen, nitrate nitrogen, and phosphate in the first soil layer 203 through the roots during growth, and biologically decomposes pollutants through metabolic activity of surface microorganisms. do.

A redox potential measuring sensor 132 is installed at a predetermined depth of the first soil layer 203 to determine whether to operate the river water distribution unit 110 according to the redox potential value in the first soil layer 203. can do.

The treated water recovery unit of the water purification apparatus of the stream according to the present invention, the first horizontal collecting pipe 121, the second horizontal collecting pipe 122, the vertical collecting well 123 and the second water pipe 124 , And collects the treated water of the stream purified by natural permeation into the bed alluvial layer 202 and the treated water purified through the bottom soil layers 203 and 205 and stores it in the vertical sump 123.

Specifically, the first horizontal collection pipe 121 is buried in the horizontal direction in the second soil layer 205 below the bed alluvial layer 202, and the river water is purified by the midnight action while passing through the bed alluvial layer 202. It serves to recover the treated water. The first horizontal collection pipe 121 may use a perforated pipe having a diameter of 50 to 100m according to soil conditions, and may be buried to have a depth of 10 to 15m according to the river water level, river bed coefficient and groundwater level. In order to maximize the area of the lower bed alluvial layer 202, as shown in FIG. 2, it is preferable to bury three or more first horizontal collection pipes 121 radially.

In general, the bed phase has a structure of an alluvial layer in which sand, gravel, and the like are deposited on the top of the bedrock, and thus the bed phase alluvial layer 202 has excellent permeability and good filtration function. It has good ability to adsorb contaminants and is suitable for living with microorganisms. Therefore, particulate contaminants in the river water are removed by filtration while passing through the bed alluvial layer 202, and nitrification and organic matter are maintained in an aerobic state by dissolved oxygen supplied by the stream water to a certain depth of the bed alluvial layer 202. Decomposition of aerobic contaminants such as decomposition occurs.

On the other hand, below a certain depth of the bottom bed alluvial layer 202 is maintained in an anoxic or anaerobic state that consumed all of the dissolved oxygen by a biological reaction, in this condition it is possible to remove nitrate nitrogen in the water by biological denitrification reaction.

The second horizontal collection pipe 122 is embedded in the second soil layer 205 in the horizontal direction, and the river water supplied by the river water distribution unit 110 has the first soil layer 203 and the second soil layer thereunder. Collecting the purified treated water while passing through (205). The second horizontal collecting pipe 122 may use a perforated pipe having a diameter of 50 to 100 m, depending on soil conditions, and is preferably buried to have a depth of 5 to 10 m depending on river water quality and groundwater level.

As shown in FIG. 2, the second horizontal collection pipes 122 are spaced apart from each other in a direction perpendicular to the first water pipes 112 of the river water distribution unit 110 in order to maximize the collection speed of the treated water. It can be installed, and at this time, it is connected to the vertical sump 123 through the second water pipe (124). The second water pipe 124 is connected to the vertical water collecting well 123 and embedded in the second soil layer 205 in the horizontal direction, and the vertical water collecting well is treated with water treated in the second horizontal water collecting pipe 122. Transfer to (123). The second horizontal collection pipe 122 is provided in a direction perpendicular to the second water pipe 124. On the other hand, when the installation is difficult, the second horizontal collecting pipe 122 is installed radially like the first horizontal collecting pipe 121 and directly connected to the vertical water collecting well 123.

Next, the vertical sump 123 temporarily stores the treated water recovered by the first horizontal sump pipe 121 and the second horizontal sump pipe 122. A manhole for carrying in or carrying out equipment is installed on the upper side of the vertical sump 123 and is a sealed structure that can safely protect facilities in the vertical sump 123 during a rainy season or a river overflow. The second pump 125 is installed at the lower portion thereof so that the water stored in the vertical sump 123 can be used as agricultural water, landscaping water, river maintenance water, etc., thereby lowering the water level in the vertical sump 123. To allow continuous inflow of treated water. The vertical sump 123 preferably has an inner diameter of 5 to 15 m depending on the processing capacity.

Meanwhile, a rainfall meter 131 is attached to one side of the vertical sump 123 to determine whether to operate the river water distribution unit 110 according to a cumulative rainfall value.

Hereinafter, the water purification method of the river using the above-mentioned water purification apparatus of the river is demonstrated.

Water purification method of the river according to an embodiment of the present invention is as follows.

1 and 2, the river water is pumped using the first pump 111 provided in the water of the river 201, and the first water pipe 112 connected to the first pump 111 is used. The pumped river water is transferred to the upper part of the riverbed soil layer. Each of the streams connected to the first water pipes 112 and separated from each other by using a plurality of water outlets 113 are evenly sprayed onto the first soil layer 203. The river water supplied to the first soil layer 203 is purified through filtration, adsorption, and biological reaction in the first and second soil layers 203 and 205.

Next, by using the first horizontal collection pipe 121 embedded in the bed alluvial layer 202, the stream water is collected through the bottom bed alluvial layer 202 to collect the treated water purified through filtration, adsorption, and biological reaction. . At the same time, the first and second soil layers 203 and 205 are formed by using a second horizontal collecting tube 122 embedded in the second soil layer 105 at a higher depth than the first horizontal collecting tube 121. Collect the purified water through.

The treated water collected by the first horizontal collecting pipe 121 is moved to the vertical collecting well 123, and the treated water collected by the second horizontal collecting pipe 122 is transferred through the second water collecting pipe 124. The vertical sump 123 is moved to and stored in each.

In general, the river water purification device installed in the riverside waterfront area has a problem that its structure is difficult to maintain due to flooding of the river during the concentrated rainfall. In addition, when the river water is continuously supplied to the first soil layer 203, the first soil layer 203 is close to a saturated state, thereby reducing oxygen transfer from the atmosphere. Accordingly, a large portion of the first soil layer 203 and the second soil layer 205 below it is converted into an anaerobic or anaerobic state. This causes two problems. One is that it is difficult to decompose aerobic contaminants in the soil layer, and the other is iron and manganese, such as iron and manganese, which are present in the soil, depending on the composition of the reducing environment in the soil. It will cause chromaticity in numbers.

In order to solve this problem, the present invention has introduced a method of intermittently operating the river water supply to the first soil layer 203, Figure 3 is a method of water purification of the river using the soil according to an embodiment of the present invention It is a flowchart for explaining the operation of the river water distribution system.

In general, when the cumulative rainfall exceeds 5mm, it is known that rainfall runoff from the waterfront area around the river flows into the river. Therefore, as shown in FIG. 3, when the accumulated rainfall measured by the rainfall meter 131 exceeds 5 mm, rainfall runoff is stopped by operating the first pump 111 of the river water distribution unit 110. The flooding speed of the river 201 can be reduced by allowing it to be rapidly penetrated to 203 (S1 and S2). In the process, contaminants such as organic matter, nutrients, and heavy metals contained in rainfall runoff can be removed, thereby further improving river water quality.

In addition, in Cheongcheon, when the first soil layer 203 is converted into a reducing environment using the redox potential sensor 132 installed at a predetermined depth of the first soil layer 203, that is, the measured redox potential is negative. At the time point having the value of, the operation of the first pump 111 may be stopped to decrease the moisture content of the first soil layer 203, thereby enabling oxygen transfer from the atmosphere (S3 and S4).

In addition, the data collection device for collecting the data measured from the rainfall meter 131 and the redox potential measurement sensor 132 and the control unit for controlling the operation of the river water distribution unit 110 according to the data, the river water The distribution unit 110 may be automatically operated according to the algorithm shown in FIG. 3.

According to the present invention described above, since the stream is simultaneously purified by the riverbed alluvial bed and the riverbed soil layer, the throughput of the river can be increased. If the conventional method produces about 20 m ³ / day of treated water per unit length (1 m) of horizontal collecting pipe in soil with hydroconductivity of 0.01 cm / s, It is possible to produce about 50 m ³ / day of treated water per 1 m). With the increase in river throughput, the retention time of river water can be shortened to minimize the leaching of iron and manganese.

In addition, during rainfall, the river water supply can be stopped and non-point sources can be introduced into the riverbed soil layer, thereby improving the river water quality by treating non-point pollutants such as nutrients, hydrocarbon pollutants, and heavy metals.

1 is a cross-sectional view of the water purification device of the river using the soil according to an embodiment of the present invention.

2 is a plan view of the water purification apparatus of the river using the soil according to an embodiment of the present invention.

Figure 3 is a flow chart for explaining the operation method of the river water distribution device in the water quality purification method of the river using the soil according to an embodiment of the present invention.

* Description of the symbols for the main parts of the drawings *

110: river water distribution section 111: the first pump

112: first water pipe 113: water outlet

121: first horizontal collection tube 122: second horizontal collection tube

123: vertical sump 124: second water pipe

125: second pump 131: rainfall meter

132: redox potential sensor 201: river

202: bed bed alluvial layer 203: first soil layer

204: underground water surface 205: second soil layer

Claims (16)

In the water purification device of the river using the soil, The water purification device includes a stream water distribution unit and the treated water recovery unit, The river water distribution unit, the pump is provided in the water of the river to pump the river water; A first water pipe connected to the pump and transferring the pumped river water; And a plurality of outlets for equally supplying the river water transferred from the first water pipe to the riverbed soil layer, wherein the riverwater supplied to the riverbed soil layer is purified through filtration, adsorption, and biological reaction in the soil layer. The treated water recovery unit may include: at least one first horizontal collection pipe embedded in the alluvial bed of the riverbed and collecting the treated water purified by filtration, adsorption, and biological reaction while the river water passes through the alluvial bed of the bed; At least one second horizontal collecting pipe embedded in the lower soil layer to have a higher depth than the first horizontal collecting pipe and collecting the treated water purified through the lower soil layer; And a vertical water collecting well for storing the treated water collected from the first and second horizontal water collecting pipes. The method of claim 1, The plurality of outlets are water purification device for rivers using soil, characterized in that spaced apart from each other at twice the interval of the maximum outlet distance. The method of claim 1, The first horizontal collection pipe is radially buried, the water purification apparatus of the river using the soil, characterized in that connected to the vertical sump. The method of claim 1, The second horizontal collecting pipe is radially embedded, the water purification apparatus of the river using the soil, characterized in that connected to the vertical water collecting well. The method of claim 1, wherein the treated water recovery unit, And a second water pipe connected to the vertical water collecting well and buried in a horizontal direction and connected to the second horizontal water collecting pipe to transfer the treated water collected in the second horizontal water collecting pipe to the vertical water collecting well. Water purification equipment of rivers using soil. The method of claim 1, The first horizontal collection pipe has a diameter of 50 to 100mm and is embedded to have a depth of 10 to 15m, The second horizontal collecting pipe has a diameter of 50 to 100mm, and is buried so as to have a depth of 5 to 10m. The water purification apparatus for rivers using soil according to claim 1, wherein the vertical water collecting wells have an inner diameter of 5 to 15 m. The method of claim 1, The riverbed soil layer is divided into a first soil layer above the groundwater surface and a second soil layer below the groundwater surface, The first soil layer is a water purification apparatus for rivers using soil, characterized in that modified to slow filtration sand to have a hydraulic conductivity of 0.1 cm / s or more. The method of claim 8, The first soil layer is a water purification apparatus for rivers using soil, characterized in that the adsorbed toxic substances contained in the river water mixed with humus, perlite, or zeolite's natural materials. The method of claim 1, The water purification apparatus of the river, which is formed on the surface layer of the riverbed soil layer, further includes a vegetation which absorbs nitrogen and phosphorus present in the riverbed soil layer and removes contaminants through metabolic activity of surface microorganisms. . The method of claim 1, Further comprising a rainfall meter installed on one side of the vertical catchment, Water quality purification device using the soil, characterized in that the operation of the river water distribution unit on / off according to the cumulative rainfall measured using the rainfall meter. The method of claim 1, Further comprising a redox potential sensor installed in the soil layer of the river, The water purification apparatus of the river using soil, characterized in that the operation of the river water distribution unit on / off according to the redox potential measured by the redox potential sensor. In the water purification method of the river using the soil, Pumping river water using a pump provided in the river water; Transferring the pumped river water to the riverbed soil layer using a first water pipe connected to the pump; Supplying stream water, which is connected to each of the first water pipes and is separated from each other, to the stream water, which is transferred to the lower soil layer; River water supplied to the riverbed soil layer is purified through filtration, adsorption and biological reaction in the riverbed soil layer; Collecting the treated water purified by filtration, adsorption, and biological reaction while river water passes through the alluvial bed of the bed using the first horizontal collection pipe embedded in the bed of the bed; Collecting the treated water purified through the bottom soil layer by using a second horizontal collection pipe embedded in the bottom soil layer at a higher depth than the first horizontal collection pipe; And And storing the treated water collected from the first and second horizontal collection pipes using vertical water collection embedded in the vertical soil layer in the riverbed soil layer. The method of claim 13, Transferring the treated water collected in the second horizontal collecting pipe to the vertical collecting well using a second water pipe connected to the vertical water collecting well and buried in a horizontal direction and connected to the second horizontal water collecting pipe. Water purification method of the river using the soil, characterized in that. The method of claim 13, Measuring the cumulative rainfall using a rainfall meter installed on one side of the vertical sump, and further comprising the step of turning on / off the operation of the pump in accordance with the cumulative rainfall amount water quality of the river using the soil. . The method of claim 15, Measuring the redox potential value using the redox potential sensor installed in the soil layer of the river, and further comprising the step of turning on / off the pump operation according to the redox potential value of the river using the soil Water Purification Method.

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