KR20040055050A - An apparatus for purification of polluted soil - Google Patents

Abstract

PURPOSE: Provided is a soil remediation apparatus capable of reducing water content in oil-water mixture extracted from contaminated soil using a suction device, thereby reducing size of an oil-water separation tank and total remediation cost. CONSTITUTION: The apparatus comprises a contaminant collection pipe(140) with a plurality of perforated holes(141), which is buried in the contaminated soil, contaminant transfer pipes(161,162) with a first end extending into the contaminant collection pipe(140) and a second end extending to the air, a pump(111) for pumping up oil-water mixture collected in the collection pipe(140) through the contaminant transfer pipes(161,162), an oil-water separation tank(120) connected to the contaminant transfer pipe(162) for separating the oil-water mixture into oil and water, and a suction device(210) moving up and down in the collection pipe(140) for extracting an oil layer with least water content from the oil-water mixture in the collection pipe(140), wherein the suction device(120) has a hollow main body(211) with a plurality of slots(210) formed to extend in vertical direction on its sides, a floating chamber(210) in the hollow main body(211), and weights(215) provided at a lower end of the hollow main body(210).

Description

{An apparatus for purification of polluted soil}

The present invention relates to a contaminated soil purifying apparatus, and more particularly, to reduce the amount of water contained in the oil-and-water mixture pumped to the ground in order to remove contaminants, thereby reducing pumping capacity and power, and flowing water for separating contaminants and water. The present invention relates to a contaminated soil purification device with a new structure that can simplify the separation facility.

In general, contaminants such as oil permeated into the ground are moved by the groundwater, which forms the veins, and are collected together with water at a predetermined place in the ground. Therefore, in order to remove such contaminants, after detecting the place where the ground water is collected, a predetermined purification device is installed to extract the contaminated ground water to the ground and to remove the contaminants by separating the contaminants and water.

Conventional soil purification apparatus used for the removal of contaminants in this manner, as shown in Figure 1, is installed in the ground pumping unit 110, the oil and water separation tank 120 and the contaminant storage tank 130 is installed on the ground It consists of a collection pipe 140, the collection pipe 140 is formed with a plurality of inlet holes 141, the groundwater mixed with oil and groundwater in the ground 10 is collected through the inlet hole 141 (140) flowed into the inside and collected, the collected oil and water mixture 10 is sucked through the suction pipe 155 connected to the pumping unit 110 is transferred to the oil and water separation tank 120 through the connection pipe 162. The oil component in the transferred oil mixture 10 is separated in the oil-water separation tank 120 and collected in the pollutant storage tank 130, and the water from which the oil component is removed is discharged back into the ground through a predetermined post-treatment process and soil. Contaminants in the interior are removed.

At this time, the configuration of the oil and water mixture collected in the collection pipe 140 is the water occupies a much larger amount than the oil component, the conventional soil contaminant purification device containing a large amount of water mixed with water (10) Since it is configured to discharge all to the outside to remove contaminants, a pump 111 having a larger capacity than necessary is required, the power required for its operation is excessive, and a large amount of pumped running water mixture 10 is pumped. In order to process a large amount of oil and water separation tank 120 is required to increase the size of the device is inevitable and there was a problem that the cost of removing contaminants is high.

The present invention is to solve the problems as described above, an object of the present invention is to reduce the treatment capacity of the pump and oil-water separation tank to include a relatively small amount of water in the running water mixture sucked through the contaminant suction body In addition, the present invention provides a soil contaminant purification device with a new structure that can reduce the size of the device and reduce the cost of removing the contaminants.

1 is a block diagram of a conventional soil purification device

2 is a configuration diagram of an embodiment of a soil contaminating device according to the present invention

<Description of the symbols for the main parts of the drawings>

110: pumping unit 120: oil water separation tank

130: pollutant storage tank 140: collecting pipe

210: contaminant suction 211: body case

213: buoyancy chamber 215: weight

219: suction hole

According to the present invention, the installation pipe is installed in the ground and a plurality of inlet holes 141 is formed, the collection pipe 140 to allow the flowing water mixture 10 of the ground introduced through the reason hole 141 is collected therein, One side is inserted into the collection pipe 140 and the other side is connected to the contaminant transport pipe line (161, 162) connected to the ground, the contaminant transport pipe line (161, 162) is connected to the collection pipe 140 The pump 111 for transporting the oil-and-water mixture 10 collected therein to the ground and the oil-and-water mixture 10 transferred by the pump 111 are connected to the other side of the pollutant transport pipes 161 and 162. In the contaminated soil purification apparatus comprising an oil and water separation tank 120 for separating into oil and oil components, further comprising a contaminant suction body (210) installed in the collection pipe (140) to be elevated. ) Is connected to the contaminant transport pipe 161 inserted into the collection pipe 140 Hollow body case 211 provided with suction hole 219 through which the collected oil and water mixture 10 is sucked, buoyancy chamber 213 provided on one side of the body case 211, and the body case 211 It includes a weight 215 mounted on one side of the, the suction hole 219 is formed in the form of a long hole in the vertical direction long in the outer peripheral portion of the main body case 211, buoyancy force applied to the buoyancy chamber 213 By inhaling the gas in the ground through a portion of the upper portion of the suction hole 219 exposed to the upper portion of the flowing water mixture 10 by the oil, the oil in the upper portion of the flowing water mixture 10 is contaminated with the gas A soil purifier is provided.

The above objects, features and advantages will become more apparent from the following detailed description taken in conjunction with the accompanying drawings. Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

Figure 2 is a block diagram showing an embodiment of the contaminated soil purification apparatus according to the present invention.

As shown, the contaminated soil purification apparatus of the present invention, the collecting pipe 140 is formed with a conveying path 142 in the longitudinal direction therein and a plurality of inlet holes 141 in the outer peripheral portion thereof, and the collecting pipe ( 140 is installed on the conveying path 142 inside the hollow and the outer periphery of the hollow contaminant suction body 210 formed with a plurality of suction holes 219 at predetermined intervals along the circumferential direction, and made of a synthetic resin material and one side The contaminant suction body 210 is connected to the upper portion of the contaminant suction body 210 and the other side is connected to the ground via a first contaminant conveying pipe route 161 and the first contaminant conveying pipe route 161. A pump 111 connected to and connected to the grounded water mixture 10 collected through the suction pipe 219 of the contaminant suction body 210 and transported to the ground; Is connected to the pump 111 by a second contaminant conveying pipe 162 through the rear end of the conveying direction of the First and second oil and water separation tank 120 for separating the oil-and-water mixture 10 transported by water and oil components, and a contaminant discharge pipe 163 formed on one side of the second oil-water separation tank 120, and this pollutant discharge pipe. Contaminant storage tank 130 is connected to the 163 is configured.

In this embodiment, the collection pipe 140 is installed vertically in the ground, the inlet hole 141 is formed of a predetermined size consisting of oil and groundwater contained in the contaminated soil around the collection pipe 140 The oil-and-water mixture 10 in a liquid state is mainly configured to flow in.

A one-touch connector 165 is mounted at an end of the first pollutant transport pipe 161 coupled to the pollutant suction body 210, and the connector 165 is coupled to the top of the pollutant suction body 210. A buoyancy chamber 213 having a hollow body case 211 having an insertion opening 211 a formed therein, and a space portion 213a having a predetermined volume sealed to an outside of the body case 211 and fixed to the outside thereof. ), A screw 217 vertically coupled to the lower portion of the main body case 211, and a plurality of weights 215 screwed to the screw 217 and made of a predetermined unit weight. In addition, the suction hole 219 is formed in the form of a long hole formed in the vertical direction of the main body case 211.

Accordingly, the contaminant suction body 210 is suspended above the flowing mixture 10 collected inside the collecting pipe 140 by the buoyancy force acting on the buoyancy chamber 213, and depends on the magnitude of buoyancy and its own weight. In proportion, the upper portion of the upper portion is exposed to the upper side of the oil mixture 10, and the bottom thereof is submerged inside the oil mixture 10. Accordingly, a portion of the upper side of the suction hole 219 is exposed to the outside of the flowing water mixture 10 to form a gas communication path 219a in which underground gas is communicated with the inside and outside of the pollutant suction body 210. If the weight 215 is increased, the portion of the contaminant suction body 210 is increased, and if the weight 215 is light, the portion exposed to the outside is increased, so that the portion of the gas communication path 219a formed in the suction hole 219 is increased. The size will also vary.

The pump 111 is composed of a pump for gas transfer, such as a blower or a vacuum pump is configured to strongly suck the air in the ground through the portion exposed to the oil mixture 10 above the suction hole 219, this embodiment In the pump 111 is composed of a blower, it was illustrated that the pump 111 is installed on the pollutant conveying pipe path (161, 162) between the pollutant suction body 210 and the oil and water separation tank 120, the present invention is this The pump 111 is not limited thereto, and when the pump 111 is a vacuum pump, the pump 111 is installed at the end portions of the contaminant conveying pipes 161 and 162 in the conveying direction, and the pump 111 and the contaminant suction body are provided. Contaminant transport pipe between the 210 may be made of a structure in which the oil-water separation tank 120 is installed on the (161, 162).

Referring to the operation of the contaminated soil purification apparatus of the present invention configured as described above are as follows.

When a predetermined time has elapsed in the state where the contaminated water vein is stuck in the collecting pipe 140, the surrounding flowing water mixture 10 is introduced into the collecting pipe 140 through the inlet hole 141. Filled to achieve a water level, the contaminant suction body 210 is suspended above the oil and water mixture 10 so that the gas communication path 219a exposed to the outside of the oil and water mixture 10 of the suction hole 219 is a suitable size. It becomes a state. At this time, since the oil component having a small specific gravity in the flow-in-water mixture 10 floats on water, a relatively thin oil layer 11 is formed on the water layer 12, which generally occupies 90% or more.

In this state, when the pump 111 is operated, the gas in the ground is strongly sucked into the body case 211 of the pollutant suction body 210 through the gas communication path 219a of the suction hole 219. The contaminants constituting the oil layer 11 on the oil-and-water mixture 10 by the pressure are sucked into the contaminant suction body 210 together with the gas sucked through the first and second contaminant transport pipe passages 162. It is transferred to the oil and water separation tank 120. At this time, the depth of the oil-and-water mixture 10 suctioned with the gas varies according to the suction pressure of the pump 111 and the size of the gas communication path 219a of the suction hole 219, as well as the oil layer 11. A portion of the lower moisture layer 12 is also sucked, but by adjusting the size of the buoyancy chamber 213 or the weight of the weight 215 to adjust the sinking depth of the contaminant suction body 210, the amount of water flowing in together Can be adjusted to minimize

Therefore, the contaminated soil purifying apparatus of the present invention is suppressed inhalation of the water occupying most of the effluent mixture 10 in the suction step of contaminated groundwater and is treated by selectively suctioning and transporting a relatively small amount of oil, the effluent mixture Pumping load for the suction and transport of (10) is significantly reduced to enable the purification of contaminated soil with less power using the pump 111 of a smaller capacity, and the oil-and-water mixture transported to the ground (10) Remarkably reduced amount of) can reduce the capacity of the oil and water separation tank 120 and can reduce the cost of pollutant treatment.

As described above, according to the present invention, the buoyancy chamber 213 is installed in the contaminant suction body 210 to expose the outside of the oil / water mixture 10 to the suction hole 219 of the contaminant suction body 210. By forming a communication path (219a), and the oil in the upper layer of the oil-and-water mixture (10) with the underground gas sucked through the gas communication path (219a) to selectively suck, contaminant suction body 210 By reducing the amount of water contained in the oil-and-water mixture 10 sucked through, it is possible to reduce the processing capacity of the pump and oil-water separation tank, to miniaturize the device, and to reduce the cost of removing the pollutants. Can be provided.

Claims (1)

It is installed in the ground and a plurality of inlet holes 141 is formed to collect the water pipes (140) for collecting the ground water flowing mixture 10 introduced through the inlet hole 141, and one side is collected The other side is inserted into the pipe 140 and the other side is connected to the contaminant transport pipe line (161, 162) and connected to one side of the contaminant transport pipe line (161, 162) collected in the collection pipe 140 The pump 111 for transferring the oil-and-water mixture 10 to the ground, and the oil-and-water mixture 10 transferred by the pump 111 by being connected to the other side of the contaminant transport pipe passages 161 and 162 as water and oil components. In the contaminated soil purification apparatus comprising a separate oil and water separation tank 120, further comprising a contaminant suction body 210 installed to be elevated in the collection pipe 140, the contaminant suction body 210 is the collection Connected with the pollutant transport pipe 161 inserted into the pipe 140, the collected oil and water mixture A hollow body case 211 provided with a suction hole 219 through which the 10 is sucked, a buoyancy chamber 213 provided on one side of the body case 211, and one side of the body case 211. It includes a weight 215 to be mounted, the suction hole 219 is formed in the form of a long hole in the vertical direction in the outer peripheral portion of the main body case 211, the flow by the buoyancy force applied to the buoyancy chamber 213 By sucking the gas in the ground through a portion of the upper portion of the suction hole 219 exposed to the upper portion of the mixture 10, the oil contaminated soil, characterized in that the oil in the upper layer of the oil-and-water mixture 10 is sucked together. .