KR20210012587A - devivce pumping oil and detecting the amount of oil inflowed at groundwater using buoys - Google Patents

Abstract

Disclosed are is a device for checking the amount of oil flowing into groundwater by using a buoy, and suctioning the same. The device comprises: a groundwater buoy capable of floating on the surface of groundwater in a well by having a specific gravity smaller than that of water and greater than that of oil; an oil pollutant buoy capable of floating on the surface of oil pollutants formed on the groundwater in the well by having a specific gravity smaller than that of the oil; an oil amount detection means for detecting whether the oil pollutants are introduced into the groundwater, and the thickness of the oil pollutants formed on the groundwater by detecting the difference in height between the oil pollutant buoy and the groundwater buoy; and an oil suction means for suctioning only the oil pollutants formed on the groundwater. Therefore, the device enables swift handling of oil spill.

Description

Devivce pumping oil and detecting the amount of oil inflowed at groundwater using buoys}

The present invention relates to a device for checking and inhaling the amount of groundwater inflow oil using a buoy, and more specifically, it is configured to have a specific gravity smaller than the specific gravity of water and larger than the specific gravity of oil, and is smaller than the specific gravity of the groundwater buoy and oil floating on the groundwater level. It is configured to have a specific gravity to form an oil buoy that floats on the level of oil contaminants formed on the groundwater level, and detects the inflow and inflow of oil contaminants into the groundwater and the amount of inflow oil through the height difference between the groundwater buoy and the oil buoy, The present invention relates to a device for checking and inhaling groundwater inflow oil flow using a buoy that can accurately target suction of only oil introduced into groundwater.

Oil accidents caused by oil spills frequently occur in areas of concern for soil pollution where facilities that cause soil pollution, such as oil storage facilities and pipeline facilities, are installed.

When an oil spill accident occurred in such an area of concern for soil pollution, not only the soil of the area but also the spilled oil was introduced into the groundwater, and if the initial countermeasures were not promptly carried out, severe damage occurred.

Accordingly, a system for monitoring groundwater pollution by installing a well is being developed, but no remarkable results have yet been shown.

In addition, there is a problem in that the existing equipment for monitoring the contamination of groundwater does not detect the inflow of oil pollutants into the groundwater quickly and accurately, and does not detect the amount of the introduced oil pollutants, so that rapid response cannot be achieved.

In addition, it is possible to detect the flow of oil pollutants into the groundwater and inhale and treat the oil pollutants floating in the groundwater through a pump, but since it is not possible to accurately grasp the amount of oil pollutants flowing into the groundwater, excessively groundwater By inhaling it, the movement range of pollutants is expanded and more soil is exposed to oil, which causes a problem that could be a starting point for contamination of another groundwater.

Registered Patent No. 10-1943947 Registered Patent No. 10-1550908

The present invention was invented to solve the conventional problems as described above, and is constructed to have a specific gravity smaller than water and larger than oil, and a groundwater buoy capable of floating on the groundwater level, and constructed to have a specific gravity greater than that of oil. By constructing an oil pollutant buoy that can float on oil pollutants, it is possible to quickly respond to oil spill accidents by detecting the occurrence of the height difference between the groundwater buoy and the oil pollutant buoy and detecting the inflow and inflow of oil pollutants into the groundwater. The purpose is to provide a groundwater inflow oil flow check and suction device using an improved buoy so that only oil contaminants that have flowed into the groundwater and can be discharged by target suction by accurately grasping the inflow of oil pollutants.

Groundwater inflow oil quantity check and suction device using the buoy of the present invention for achieving the above object is constructed to have a specific gravity smaller than the specific gravity of water and greater than the specific gravity of oil, so that the groundwater buoy can float on the groundwater level in the well; An oil contaminant buoy that is configured to have a specific gravity less than that of oil and is floatable on the oil contaminant liquid level formed on the groundwater in the well; Oil quantity sensing means for detecting a height difference between the oil contaminant buoy with respect to the groundwater buoy to detect whether an oil contaminant is introduced into the groundwater and a thickness of the oil contaminant formed on the groundwater; It characterized in that it comprises a; oil suction means for target suction only the oil pollutants formed on the groundwater.

The oil amount detecting means may include a sensor rod installed in the well in a vertical direction and a plurality of magnetics installed at predetermined intervals; A first magnetic detection sensor installed on the groundwater buoy and detecting the plurality of magnetics; A second magnetic detection sensor installed on the oil pollutant buoy and configured to detect the plurality of magnetics, and a first height from the ground surface to the groundwater buoy by receiving a first detection signal output from the first magnetic detection sensor Is calculated, receives a second detection signal output from the second magnetic detection sensor, calculates a second height from the ground surface to the oil pollutant buoy, and when a height difference between the first height and the second height occurs, groundwater It may be configured to further include a; control unit for outputting a warning signal by determining that the inflow of the oil pollutant has occurred.

The control unit may be configured to compare the first height and the second height to calculate the thickness of the oil contaminant formed on the groundwater, and to display the thickness of the oil contaminant through the display unit.

The oil suction means may include a milk pump installed on the ground surface; A sheep oil suction hose connected to the sheep oil pump and introduced into the well to suck oil contaminants formed on the groundwater; It may be configured to include; an electric hose reel for winding or unwinding the both oil hose to adjust the height of the suction port of the end of the both oil suction hose.

When the control unit determines that the height difference between the first height and the second height occurs and the inflow of oil contaminants into the groundwater has occurred, the control unit operates the pump and operates the electric hose to operate the pump for pumping oil. It is possible to control so that only the oil contaminants above the groundwater are sucked and treated while lowering the end suction port to the first height.

An oil detection sensor configured to output an oil detection signal by sensing that the end of the both oil suction hose is in contact with the oil contaminants formed on the groundwater is installed at the end of the positive oil suction hose, and the control unit includes the first height and the If it is determined that the inflow of oil contaminants into the groundwater has occurred due to the occurrence of the height difference between the second height, the both oil pump is operated and the electric hose is operated until the oil detection signal is received. The electric arc is driven so that the end of the motor is lowered at a first speed to a position in contact with the liquid level of the oil contaminant, and then the double oil suction hose descends at a speed lower than the first speed by the thickness of the oil contaminant. By driving the thrill, it is possible to control the suction treatment of only the oil pollutants above the groundwater.

According to the above, the present invention comprises a groundwater buoy floatable in groundwater and an oil pollutant buoy floatable on oil pollutants on groundwater by using the specific gravity difference between water and oil, and detects the height difference between the two buoys It is possible to check the inflow of oil pollutants and the amount of inflow, so that more accurate monitoring can be performed, and an accurate warning alarm according to the inflow of oil pollutants is output on the site, enabling rapid response to oil spill accidents. There is.

In addition, the present invention not only accurately detects the inflow of oil pollutants and generates a warning alarm accordingly, but also detects the inflow of oil pollutants and the oil suction means operates to suck the oil pollutants formed above the groundwater, It has the effect of reducing the contamination range as much as possible by preventing diffusion by the flow of contaminants.

In particular, the present invention targets only the oil pollutants formed on the groundwater while the electric hose is controlled by the controller, so that the range of oil pollution to the soil that can be caused by inhaling groundwater excessively along with the oil pollutants to the surface There is an effect that can prevent spread.

1 is a view showing a groundwater inflow oil flow check and suction device using a buoy according to an embodiment of the present invention,
FIG. 2 is an enlarged view showing an operating state of part A of FIG. 1,
3 is an enlarged view of part B of FIG. 1,
4 is a control block diagram of a device for checking and inhaling groundwater inflow oil flow according to an embodiment of the present invention.

The above objects, other objects, features, and advantages of the present invention will be easily understood through the following preferred embodiments related to the accompanying drawings. However, the present invention is not limited to the embodiments described herein and may be embodied in other forms. Rather, the embodiments introduced herein are provided so that the disclosed content may be thorough and complete, and the spirit of the present invention may be sufficiently conveyed to those skilled in the art.

In the present specification, when a component is referred to as being on another component, it means that it may be formed directly on the other component or that a third component may be interposed between them. In addition, in the drawings, the thickness of the components is exaggerated for effective description of the technical content.

Embodiments described in the present specification will be described with reference to cross-sectional views and/or plan views, which are ideal exemplary views of the present invention. In the drawings, the thicknesses of films and regions are exaggerated for effective description of technical content. Accordingly, the shape of the exemplary diagram may be modified by manufacturing technology and/or tolerance. Accordingly, embodiments of the present invention are not limited to the specific form shown, but also include a change in form generated according to a manufacturing process. For example, the etched area shown at a right angle may be rounded or may have a shape having a predetermined curvature. Accordingly, the regions illustrated in the drawings have properties, and the shapes of the regions illustrated in the drawings are for exemplifying a specific shape of the region of the device and are not intended to limit the scope of the invention. In various embodiments of the present specification, terms such as first and second are used to describe various components, but these components should not be limited by these terms. These terms are only used to distinguish one component from another component. The embodiments described and illustrated herein also include complementary embodiments thereof.

The terms used in this specification are for describing exemplary embodiments, and are not intended to limit the present invention. In this specification, the singular form also includes the plural form unless specifically stated in the phrase. As used in the specification, "comprises" and/or "comprising" does not exclude the presence or addition of one or more other elements.

In describing the specific embodiments below, a number of specific contents have been prepared to explain the invention in more detail and to aid understanding. However, readers who have knowledge in this field to the extent that they can understand the present invention can recognize that it can be used without these various specific contents. In some cases, it is mentioned in advance that parts that are commonly known in describing the invention and are not largely related to the invention are not described in order to prevent confusion without any reason in describing the invention.

Hereinafter, with reference to FIGS. 1 to 4, a description will be given of the groundwater inflow oil flow rate check and suction device 100 according to an embodiment of the present invention.

The groundwater inflow oil quantity check and suction device 100 of the present invention may be installed in an area where soil pollution inducing facilities such as oil storage facilities and oil pipeline facilities are installed.

Specifically, the groundwater inflow oil flow rate check and suction device of the present invention includes a well 101 installed from the surface to groundwater, a groundwater buoy 120 installed to float on the groundwater by being inserted into the well 101, and the well 101 By receiving a detection signal from the oil pollutant buoy 130 installed to float on the oil pollutant formed on the groundwater by being input, the oil quantity detecting means 140 installed in the well 110, the oil quantity detecting means 140, groundwater The control unit 150 that determines the inflow of oil contaminants that have flowed into the system and outputs a warning signal, calculates and displays the inflow amount of the oil contaminants, and the control unit 150 controls the inflow of oil contaminants to track and target the oil contaminants. It is configured to include an oil suction means 160 for suction.

The upper end of the well 101 is provided with a well extension 101a extending to the top of the ground surface, the inner plug 104 blocking the inner upper end of the well extension 101a, and the tube well extension 101a The cover 102 is configured to be installed to cover the upper end. The inner plug 104 and the cover 102 are provided with handles 104a and 102a, respectively, and are configured so that the inner plug 104 and the cover 102 can be easily opened through the handle.

The groundwater buoy 120 is configured to have a specific gravity smaller than the specific gravity of water and larger than the specific gravity of oil, and is configured to be floatable on the groundwater regardless of the inflow of oil contaminants. That is, the groundwater buoy 120 is configured to sink in the oil pollutant and float on the groundwater when the oil pollutant flows into the groundwater and the oil pollutant floats on the groundwater.

The oil pollutant buoy 130 is constructed so that the specific gravity is smaller than that of water and the specific gravity is smaller than that of oil, so that if there is only groundwater without the inflow of oil pollutants, it floats on the groundwater, and when oil pollutants flow into the groundwater, It is configured to float on the formed oil contaminants.

The oil quantity detecting means 110 is installed vertically inside the well 101 and is a means for detecting the height difference between the groundwater buoy 130 and the oil pollutant buoy 130.

The oil flow detection means 110 is configured to include a sensor rod 142, a first magnetic detection sensor 145, and a second magnetic detection sensor 147.

The sensor rod 142 is installed in a vertical direction inside the well 101, and a plurality of magnetics 143 are installed at predetermined intervals.

The first magnetic detection sensor 145 is installed on the groundwater buoy 120 and is configured to sense a plurality of magnetics 143 installed on the sensor rod 142 and transmit a first detection signal to the controller 150.

The groundwater buoy 120 is provided with a first support bar 122 extending upwardly, and the first magnetic detection sensor 145 is configured to be installed on one side of the first support bar 122. At this time, a pair of first guide rings 124 are provided at the upper and lower portions of the first support bar 122, and the sensor rod 142 is inserted through the pair of first guide rings 124, The pair of first guide rings 124 are configured to be vertically movable along the sensor rod 142.

Therefore, according to the change in the water level of the groundwater, when the groundwater buoy 120 is moved up and down, the groundwater buoy 120 can be moved up and down while maintaining a static posture without being overturned, and the first magnetic detection sensor 145 has a plurality of Normal detection can be performed without erroneously sensing or missing the magnetic 143 of.

The second magnetic detection sensor 147 is installed on the oil contaminant buoy 130 and is configured to sense a plurality of magnetics 143 installed on the sensor rod 142 and transmit a second detection signal to the controller 150.

The oil pollutant buoy 130 is provided with a second support bar 132 extending upwardly, and the second magnetic detection sensor 147 is configured to be installed on one side of the second support bar 132. At this time, a pair of second guide rings 134 are provided at the top and bottom of the second support bar 132, and the sensor rod 142 is inserted through the pair of second guide rings 134, The pair of second guide rings 134 is configured to be vertically movable along the sensor rod 142.

Therefore, when the oil pollutant buoy 130 is moved up and down according to the change in the level of the groundwater or the inflow amount of oil pollutants, the oil pollutant buoy 130 may not be turned over and moved up and down while maintaining a static posture, and the second magnetic sensing The sensor 147 may not erroneously detect or omit the plurality of magnetics 143, and normal detection may be performed.

In addition, in the present invention, the first magnetic detection sensor 145 and the second magnetic detection sensor 145 are connected to the control unit 150 through signal lines W1 and W2 to detect the first detection signal and the second detection in a wired manner. It is configured to transmit a signal to the control unit 150.

The controller 150 may receive the first detection signal transmitted from the first magnetic detection sensor 145 and calculate and detect the first height L1 from the ground surface to the groundwater buoy 120, and detect the second magnetic. By receiving the second detection signal transmitted from the sensor 145, the second height L2 from the ground surface to the oil pollutant buoy 130 may be calculated and detected.

For example, in the present invention, the first magnetic detection sensor 145 and the second magnetic detection sensor 147 detect a plurality of magnetics 143 installed from the ground surface to the groundwater buoy 120 or the oil pollutant buoy 130. The first detection signal and the second detection signal are transmitted to the control unit 150, and the control unit 150 calculates a first height from the ground surface to the groundwater buoy 120 by counting the first detection signal and the second detection signal, respectively. , It is possible to calculate the second height up to the oil pollutant buoy 130.

However, the first magnetic detection sensor 145 and the second magnetic detection sensor 147 senses the magnetic 143 spaced apart from the sensor rod 142 and transmits a detection signal to the control unit 150, and the control unit 150 Calculating the first height from the ground surface to the groundwater buoy 120 and the second height to the oil pollutant buoy 130 may be calculated by various calculation programs.

As shown in (a) of FIG. 2, when there is no oil spill accident and no oil pollutants have been introduced into the groundwater, the first height from the surface calculated by the control unit 150 to the groundwater buoy 120 and the oil flow The second height up to the pollutant buoy 130 is the same, and if the calculated first height and the second height are the same, the control unit 150 determines that there is no oil spill accident.

On the other hand, when oil pollutants are introduced into the groundwater due to an oil spill accident and oil pollutants are formed on the groundwater, the first height (L1) from the surface calculated by the control unit 150 to the groundwater buoy 120, from the surface to the groundwater level Height) and the second height up to the oil pollutant buoy 130 (L2, the height to the liquid level of the oil pollutant formed on the groundwater), a height difference occurs, and when the difference between the first height and the second height occurs, the controller 150 determines that the inflow of oil pollutants into the groundwater has occurred, and controls to generate a warning sound through the speaker 155 or/and output a warning signal such as a warning light.

In addition, the control unit 150 compares the first height and the second height to calculate the thickness of the introduced oil contaminant in the groundwater (D), and calculates the calculated thickness (D) of the inflow contaminant in the display unit 153 ) Can be configured to display.

As described above, the present invention accurately detects whether oil contaminants are introduced into the groundwater through the oil quantity detection means 140, and outputs a warning signal at the site when detecting the inflow, so that immediate initial countermeasures are made at the site, thereby preventing the spread of pollution. Can be prevented.

In addition, the control unit 150 may transmit the warning signal to a remote control center or the like through the transmission/reception unit 157 provided with the antenna 154 so that an active response can be made.

On the other hand, in the present invention, when the controller 150 determines that the oil contaminants have flowed into the groundwater, the oil intake means 160 is controlled to target the oil contaminants formed on the groundwater and suction treatment to the surface to prevent the flow and diffusion of the oil contaminants. Can be prevented.

The oil suction means 160 is configured to include a positive oil pump 161, a positive oil suction hose 163, and an electric hose reel 165.

When the milk pump 161 is installed on the ground surface, it is connected to the both oil suction hose 163 and sucks oil contaminants through the sheep oil suction hose 163 and discharges it through the oil drain line 162. The oil drain line 162 may be connected to a collection tank (not shown) so that the oil contaminants are stored and collected in the collection tank.

The positive oil suction hose 163 is made of a hose having a predetermined length, is configured to be connected to the pump 161, and is introduced into the well 101 to suck oil contaminants formed on the groundwater through the suction port at the end. .

The electric hose reel 165 is installed on the ground surface, and the height of the end of the both oil suction hose 163 injected into the well 101 is adjusted by winding or unwinding the positive oil suction hose 163 to adjust the length of the positive oil suction hose 163. It is configured to adjust.

The control unit 150 is configured to control the driving of the pump 161 and the electric hose 165, and specifically, when it is determined that the oil contaminants have flowed into the groundwater through the flow detection means 140, the pump ( 161) is driven and the electric hose reel 165 is driven so that the suction port at the end of the both oil suction hose 163 is lowered by the first height (the height from the ground surface to the groundwater buoy) to target only oil contaminants formed on the groundwater. Control to inhale.

However, the present invention is not limited thereto, and the present invention may include an oil detection sensor 168 that detects oil pollutants and outputs an oil detection signal to the control unit 150 by a wired (W3) method, and the control unit 150 When it is determined that the oil contaminants have flowed into the groundwater through the oil quantity detection means 140, the electric hose reel 165 is operated until the oil detection sensor 168 detects the oil contaminants formed on the groundwater and outputs an oil detection signal. It is driven to lower the end of the oil suction hose 163 to reach the oil pollutant, and after the end of the oil suction hose 163 reaches the oil pollutant, the oil suction hose is as much as the calculated thickness (D) of the oil pollutant. The electric hose reel 153 is lowered so that the distal end of 163 is lowered, and only oil contaminants are targeted to be sucked.

At this time, the electric hose reel 163 so that the oil suction hose 163 rapidly descends at the first speed until the end of the oil suction hose 163 reaches the level of the oil pollutant liquid without actually inhaling the oil pollutant. Control, and after the end of the oil suction hose 163 reaches the oil contaminant, in the process of actual target suction of the oil contaminant, the electric arc so that the oil suction hose 163 descends at a second speed slower than the first speed. By controlling the thrill 163, it can be configured so that stable and efficient inhalation of oil contaminants is achieved.

In addition, in the present invention, even when the oil detection sensor 168 is configured to be installed at the end of the oil suction hose 163, the control unit 150 is the first height calculated through the oil flow detection means 140 (groundwater buoy The electric hose 165 is operated so as to descend by the height of up to) so that only the oil contaminants formed on the groundwater can be controlled to be sucked target. However, when the oil detection signal is received from the oil detection sensor 168 after the end of the oil suction hose 163 descends to the first height and sucks the oil contaminants, the calculation error or the oil quantity detection means 140 It is determined that it is due to an error of the oil detection sensor 168, and the electric hose reel 165 is operated only until the oil detection signal is not received, so that the oil suction hose 163 is further lowered and the remaining oil contaminants are sucked. This can be configured to perform error correction.

Meanwhile, in the present invention, when the groundwater buoy 120 is in contact with groundwater, a groundwater detection sensor 171 for transmitting a groundwater detection signal to the control unit 150 may be further provided under the groundwater buoy 120. . When the groundwater detection signal is not received from the groundwater detection sensor 171, the control unit 150 is applied to various groundwater buoys 120, such as the groundwater buoy 120 not floating on the groundwater and floating on the oil pollutants formed above the groundwater. It is possible to output an alarm signal by determining that a malfunction or damage has occurred.

In addition, in the present invention, when the oil pollutant buoy 130 is in contact with the oil pollutant, an oil detection sensor 173 that transmits an oil pollutant detection signal to the control unit 150 is further provided at the bottom of the oil pollutant buoy 130. Can be configured. In this case, even when a very small amount of oil pollutants is formed on the groundwater, and the oil pollutant inflow detection by the oil amount detection means 140 cannot be achieved, the control unit 150 detects the oil pollutants detected by the oil detection sensor 173 When a signal is received, it is determined that oil contaminants have flowed into the groundwater, and a warning signal is output to enable rapid response. In addition, when the oil contaminant detection signal is not received from the oil reduction detection means 140, the oil It may be determined that a malfunction or damage of the pollutant buoy 130 has occurred.

As described above, the present invention has been illustrated and described in connection with preferred embodiments for exemplifying the principles of the present invention, but the present invention is not limited to the configuration and operation as shown and described as such. Rather, it will be well understood by those skilled in the art that a number of changes and modifications can be made to the present invention without departing from the spirit and scope of the appended claims. Accordingly, all such appropriate changes and modifications and equivalents should be considered to be within the scope of the present invention.

101...
120...ground water buoy
122...1st support bar
124...first guide ring
130...Oil Pollutant Buoy
132...2nd support bar
134...2nd guide ring
140...Means for detecting oil flow
142...Sensor rod
143...magnetic
145...first magnetic detection sensor
147...second magnetic detection sensor
150...control
151...control panel
153...display section
155...speakers
160... oil suction means

Claims (6)

Groundwater buoys that are floatable on the groundwater level in the well by being constructed to have a specific gravity smaller than that of water and greater than that of oil;
An oil contaminant buoy that is configured to have a specific gravity less than that of oil and is floatable on the oil contaminant liquid level formed on the groundwater in the well;
Oil quantity sensing means for detecting a height difference between the oil contaminant buoy with respect to the groundwater buoy to detect whether an oil contaminant is introduced into the groundwater and a thickness of the oil contaminant formed on the groundwater;
Oil suction means for target suction of only the oil pollutants formed on the groundwater; groundwater flow rate check and suction device using a buoy, characterized in that it comprises a.
The method of claim 1,
The oil amount detection means,
A sensor rod installed vertically inside the well and having a plurality of magnetics installed at predetermined intervals;
A first magnetic detection sensor installed on the groundwater buoy and detecting the plurality of magnetics;
Includes; a second magnetic detection sensor installed on the oil contaminant buoy and detecting the plurality of magnetics,
Receives a first detection signal output from the first magnetic detection sensor to calculate a first height from the ground surface to the groundwater buoy, and receives a second detection signal output from the second magnetic detection sensor to receive the oil flow from the ground surface. A control unit that calculates a second height to the pollutant buoy and outputs a warning signal by determining that the inflow of oil pollutants into the groundwater has occurred when a height difference between the first height and the second height occurs, and outputs a warning signal. Groundwater inflow oil flow check and suction device using a buoy characterized by.
The method of claim 2,
The control unit compares the first height and the second height to calculate the thickness of the oil contaminant formed on the groundwater, and displays the thickness of the oil contaminant through a display unit. And suction device.
The method of claim 3,
The oil suction means,
A pump for pumping oil installed on the ground surface;
A sheep oil suction hose connected to the sheep oil pump and introduced into the well to suck oil contaminants formed on the groundwater;
An electric hose reel that winds up or unwinds the sheep oil hose to adjust the height of the suction port at the end of the sheep oil suction hose.
The method of claim 4,
When the control unit determines that the height difference between the first height and the second height occurs and the inflow of oil contaminants into the groundwater has occurred, the control unit operates the pump and operates the electric hose to operate the pump for pumping oil. Groundwater inflow oil quantity check and suction device using a buoy, characterized in that, while lowering the suction port at the end to the first height and controlling the suction treatment of only the oil contaminants above the groundwater.
The method of claim 4,
At the end of the both oil suction hose, an oil detection sensor for outputting an oil detection signal by sensing that the end of the both oil suction hose is in contact with the oil contaminants formed on the groundwater is installed,
If the control unit determines that the inflow of oil contaminants into the groundwater occurs due to the height difference between the first height and the second height, the control unit operates the pump and operates the pump until the oil detection signal is received. By operating the electric hose, the electric hose is driven so that the end of the positive oil suction hose is lowered at a first speed to a position in contact with the liquid level of the oil pollutant, and then at a speed lower than the first speed by the thickness of the oil pollutant. Groundwater inflow oil quantity check and suction device using a buoy, characterized in that controlling to suck and treat only the oil pollutants above the groundwater by driving the electric hose so that the positive oil suction hose descends.

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