KR20030072052A - dynamic galvanic - Google Patents

Abstract

PURPOSE: Provided is an electrokinetic soil remediation apparatus being capable of removing heavy metals from soil by injecting cleaning agent into contaminated soil, decomposing organic material by dissolving the organic material in soil, and advantageous in low maintenance cost. CONSTITUTION: The apparatus(2) comprises an upper support(10) with an electrode bar(12) externally extending therethrough, an inlet(14) through which electrolyte or cleaning agent is input, an outlet(16) through which waste cleaning agent is output, an adjusting hole(18) through which a solution for adjusting hydrogen ion concentration of the cleaning agent inside apparatus(2) is input, and a gas exhausting hole(20) through which gas generated inside the apparatus(2) is exhausted; a body(20) detachably coupled to a lower end of the upper support(10) and having a mesh member(36) therein; and a lower support(40) detachably coupled to a lower end of the body(30) for supporting the electrode bar(12) and closing the end of the body so as for the electrolyte and cleaning agent in the body not to be discharged out by gravity.

Description

Galvanic steel {dynamic galvanic}

The present invention relates to an electrokinetic device designed to purify contaminated soil, and more particularly, to an electrokinetic device configured to be assembled into a prefabricated machine, thereby improving its maintainability and reducing maintenance costs accordingly. will be.

As is well known, a large amount of organic waste is generated by mass production and mass consumption as the industry develops, and environmental pollution such as water quality, air, soil, ocean, etc. has seriously emerged.

Among these environmental pollutions, especially water pollution and air pollution have a lot of influence on humankind, so there has been a great deal of attention from scientists and the global level, and continuous research has been continued.

On the other hand, soil pollution in environmental pollution is visually and sensibly affected by human beings rather than environmental pollution, so it is relatively less interested than other environmental pollution problems. It has been neglected, and therefore, there was a problem in that the cost and time consuming the purification of contaminated soil.

The soil pollution is a phenomenon in which pollutants penetrated into the ground pollute the lipids, and these pollutants pollute everything existing in the geology such as groundwater or underground air, and in particular, as the industry develops, various industrial wastes, including oil, etc. In addition, soil pollution became very serious as heavy metals were produced in large quantities.

On the other hand, the contamination of such soil is usually the mainstream pollution of heavy metals, and among the methods to clean the soil contaminated by heavy metals, shielding treatment, steam extraction, soil washing techniques, etc. are typical. .

However, such shielding techniques include blocking holes, water holes, covering soil, planting works, etc. Depending on the level of soil pollution, these technologies are used. However, these techniques are not intended to purify contaminated soil, but rather to spread pollution sources. Because the main purpose is to prevent the pollution, soil pollution, which is a fundamental problem, cannot be solved.

In addition, steam extraction is a method for removing organic pollutants by vaporizing organic pollutants by lowering the pressure in the soil, which is effective for removing highly volatile organic pollutants, but it is costly to remove heavy metal pollutants. There was a problem.

In addition, the soil washing technology can purify the soil with high efficiency in a relatively short time by selecting the appropriate cleaning agent through the basic research according to the type of pollutant to be removed, but in the soil washing, the size of the soil particles is small, There was a limiting disadvantage that the flow of cleaning agent by pressure / vacuum was not smooth for clays of dense tissues with small porosity, and high pressure / vacuum was applied to such clay soils for smooth flow of the cleaning agent. While the energy cost to generate is increased, channeling phenomenon may occur, in which non-uniform gaps in the soil spread / move the detergent stream, which may cause the detergent and pollutants to move to non-contaminated areas. In addition to reducing cleaning efficiency, there is a risk of wastage of cleaning agents used and secondary pollution in non-contaminated areas. There was a problem.

Accordingly, the present invention has been made to solve the problems described above, by supplying the washing liquid in the contaminated soil to filter heavy metals, and to dissolve and cleanse organic contaminants and maintain the maintainability of this voltaic Its purpose is to provide an electrokinetic machine that can be improved to reduce maintenance costs.

1 is a view showing the structure of an electrokinetic machine according to the present invention

2 is a view showing a coupling structure of the electrokinetic machine according to the present invention.

Figure 3 is an enlarged view showing the net member of the electrokinetic body according to the present invention

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

2: electrokinetic 10: upper support

12: electrode 14: inlet

16: outlet 18: control

20 gas outlet 22 concentration sensor

24: level sensor 30: body

32: nonwoven fabric layer 34: bonding member

36: network member 40: lower support

The electrokinetic machine of the present invention for achieving the above object, the electrode rod is pressed in the upper portion is detachably provided, one side of the electrode is formed with an inlet through which the cleaning solution and the electrolyte is introduced, one side of the inlet purification An outlet is formed to discharge the washing waste due to the action, and on one side of the outlet is formed a regulator to supply a corresponding solution according to the hydrogen ion concentration index of the washing liquid stored in the electrokinetic device, and on one side of the outlet An upper support formed by forming a gas discharge port for discharging the gas generated by the electrokinetic electrode reaction; A body having a mesh member configured to be detachably screwed to a lower portion of the upper support body through a coupling member, the inner circumferential surface of the upper support body allowing the washing liquid and the electrolyte to flow freely and supporting the electrokinetic device; And a lower support body detachably screwed to the lower part of the body to support the electrode and the electrokinetic device, and to prevent the washing liquid and the electrolytic solution from being discharged to the outside by gravity.

In addition, the upper support and the lower support and the coupling member of the body is formed of any one of polyvinyl chloride, polypropylene, polyethylene, high density polyethylene.

In addition, the surface of the body is formed of a highly breathable non-woven fabric (Super Filter Mat) to prevent the foreign matter in the soil or soil into the electrokinetic machine.

In addition, the network member in the body is formed of any one of stainless steel, polyvinyl chloride, polypropylene, polyethylene, high density polyethylene.

In addition, the upper surface of the upper support is provided with a concentration measuring sensor and a level sensor to detect the hydrogen ion concentration index and the water level of the washing liquid.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 and 3 are diagrams showing a voltaic machine according to the present invention, as shown, the electrokinetic machine 2 according to the present invention is largely the upper support 10, the body 30, the lower support The upper support 10 and the lower support 40 are screwed to the upper and lower portions of the body 30, respectively, so as to improve the maintenance and maintainability of the electrokinetic machine 2. It is composed.

On the other hand, the upper electrode portion 12 of the upper support 10 is detachably indented electrode 12 is provided to protrude, supplying electricity from a power supply source (not shown) of the purification system (not shown) for purifying the contaminated soil It is formed to receive.

The electrode rod 12 is formed of stainless steel, carbon alloy, iron alloy, titanium alloy and the like, the diameter of the electrode rod 12 is preferably formed within 10mm to 50mm.

In addition, one side of the electrode rod 12 penetrates so that the inlet port 14 for introducing the washing liquid and the electrolyte discharged from the washing liquid and the electrolyte storage tank (not shown) into the electrokinetic machine 2 protrudes into the upper support 10. Is formed, one side of the inlet 14, the outlet 16 to discharge the washing waste liquid generated by the cleaning liquid supplied into the electrokinetic unit 2 to purify the soil to the waste liquid storage tank (not shown), the upper support 10 Penetrates so as to protrude.

On one side of the outlet 16, a control device 18 is formed to supply a corresponding solution, that is, an alkaline solution or an acidic solution, according to the hydrogen ion concentration index (pH) of the washing solution stored in the electrokinetic machine 2, On one side of the adjusting device 18, a gas discharge port 20 is formed to discharge the gas generated by the electrode reaction of the electrokinetic machine 2.

In addition, the upper support 10 between the control device 18 and the gas discharge port 20, the concentration measuring sensor 22 to detect the hydrogen ion concentration index and the water level of the washing liquid supplied in the electrokinetic machine 2, respectively. And a water level sensor 24 is provided.

The upper support 10 made as described above is made of any one of polyvinyl chloride (PVC: Polyvinyl Chloride), polypropylene (PP: Polypropylene), polyethylene (PE: Polyethylene), high density polyethylene (HDPE: High Density Polyethylene) Is formed.

In addition, the lower portion of the upper support 10 made as described above is provided with a body 30, the body 30 is provided detachably by screwing to the upper support (10).

The body 30 prevents foreign matter in the soil or soil from flowing into the voltaic machine 2, and easily discharges the washing liquid in the voltaic cell 2 into the soil and facilitates the washing liquid discharged into the soil. It is formed of a breathable nonwoven fabric layer 32 to be absorbed, and the upper and lower inner peripheral surface of the nonwoven fabric layer 32 corresponding to the threaded portion of the upper support 10 and the lower support 40 to be described later on the inner peripheral surface Coupling member 34 having a.

Here, the coupling member 34 is similar to the above-described upper support 10, polyvinyl chloride (PVC: Polyvinyl Chloride), polypropylene (PP: Polypropylene), polyethylene (PE: Polyethylene), high density polyethylene (HDPE: High) Density Polyethylene) is formed as a material of any one.

On the other hand, the inner surface of the non-woven fabric layer (32) of the body 30 formed as described above is a mesh member to allow the washing liquid and the electrolyte supplied in the electrolytic machine 2 to flow freely and to support the electrokinetic machine 2 ( 36) is formed, the mesh member 36 is made of stainless steel, polyvinyl chloride (PVC: Polyvinyl Chloride), polypropylene (PP: Polypropylene), polyethylene (PE: Polyethylene), high density polyethylene (HDPE: High Density) Polyethylene) is preferably formed as a material.

As shown in the accompanying drawings, the mesh member 36 is preferably formed in a rectangular hole of a predetermined standard having a length of 10 to 50 mm at regular intervals of 10 to 50 mm.

In addition, the lower portion of the body 30 formed as described above supports the electrode rod 12 and the electrokinetic unit 2 and prevents the washing liquid and the electrolytic solution in the electrokinetic unit 2 from being discharged to the outside by gravity. The support 40 is provided, and the lower support 40 is detachably provided by being screwed to the coupling member 34 provided in the nonwoven fabric layer 32 of the body 30.

The lower support 40 provided as described above is similar to the upper support 10 described above, polyvinyl chloride (PVC: Polyvinyl Chloride), polypropylene (PP: Polypropylene), polyethylene (PE: Polyethylene), high density polyethylene (HDPE: High Density Polyethylene).

On the other hand, the upper support 10 and the lower support 40 may be provided with a coupling member having a screw portion corresponding to the coupling member 34 of the body 30.

In addition, the voltaic machine 2 formed as described above has an outer diameter of 50 mm to 200 mm or less, and a height of 500 mm to 3000 mm or less is preferably formed.

Galvanic steel 2 according to the present invention made as described above is supplied with electricity from the power supply source through the electrode rod 12 provided through the central portion thereof, and the washing liquid and the electrolyte from the washing liquid and the electrolyte reservoir inlet 14 It is supplied through.

As described above, the washing liquid supplied into the electrokinetic machine 2 is electrostatic osmosis, electrophoresis and electrophoretic phenomena by the electricity supplied to the electrode 12 to the electrokinetic machine 2 of the negative electrode. Will flow.

At this time, the washing liquid flowing as described above is easily flowed into the soil from the electrokinetic (2) of the positive electrode by the body 30 made of a non-woven fabric layer 32 and the mesh member 36, The washing liquid supplied to the purified soil is introduced back into the electrokinetic machine 2 of the negative electrode, and the washing waste liquid introduced into the electrokinetic machine 2 of the negative electrode is discharged through the outlet 16 on the upper support 10. The washing waste liquid supplied to the waste liquid storage tank is formed into a new washing liquid through a purification means, re-introduced into the washing liquid storage tank, and circulated.

On the other hand, when the cleaning liquid to clean the contaminated soil as described above is introduced into the electrokinetic (2) of the negative electrode is a foreign material in the soil is introduced into the electrokinetic (2) by the non-woven fabric layer 32 forming the body 30 Will be prevented.

In addition, the above-described voltaic gas 2 is formed with gas in the voltaic cell 2 by the electrode reaction as described above, and the gas is exhausted to the outside of the voltaic cell 2 through the gas outlet 20.

In addition, the washing solution circulated as described above changes its hydrogen ion concentration index due to frequent purification, and thus the concentration measuring sensor 22 detects the hydrogen ion concentration index of the washing solution, and thus alkaline or acidic solution. It is supplied by supplying a certain amount through the adjusting opening (18).

On the other hand, the water level of the washing liquid supplied into the electrokinetic unit 2 as described above is detected by the water level sensor 24, the supply of the washing liquid is controlled.

Here, the above-described water level sensor 24 and the concentration measuring sensor 22 are controlled by a control unit configured in the purification system, although not shown.

In addition, the lower support 40 prevents the washing liquid and the electrolytic solution from being discharged to the outside by gravity, and the electrode rod 12 and the upper support 10 and the mesh member 36 as well. It supports the voltaic machine 2.

In addition, during the maintenance or maintenance due to breakage of the electrokinetic device 2 made as described above, the upper support 10 and the lower support 40 are respectively repaired and separated from the body 30 to be repaired and broken. By replacing only the parts that have been replaced, the polluted soil can be cleaned and maintenance of the electrokinetic machine can be improved, thereby reducing maintenance costs.

As described above, the electrokinetic machine of the present invention is supplied with a washing liquid therein, the supplied washing liquid is introduced into the soil contaminated by electroosmotic phenomenon to purify the soil, and each Since the parts are assembled in a prefabricated manner, it is useful to improve maintenance of the electrokinetic machine and to reduce maintenance costs.

Claims (5)

In the voltaic machine 2, The electrokinetic machine 2 is detachably provided by inserting the electrode 12 into the upper portion thereof, and an inlet 14 through which the washing solution and the electrolyte is introduced is formed at one side of the electrode 12, and the inlet 14 On one side of the outlet is formed with an outlet 16 to discharge the washing waste due to the purification action, one side of the outlet 16 is a corresponding solution according to the hydrogen ion concentration index of the washing solution stored in the electrokinetic (2) A control mechanism 18 is provided to supply, and an upper support body formed on one side of the control mechanism 18 is formed with a gas discharge port 20 for discharging the gas generated by the electrode reaction of the electrokinetic machine 2. 10; It is provided to be detachably screwed through the coupling member 34 to the lower portion of the upper support 10, the inner circumferential surface is to allow the washing liquid and the electrolyte to flow freely and to support the electrokinetic machine 2 A body 30 having a mesh member 36; It is detachably screwed to the lower part of the body 30 to support the electrode 12 and the voltaic pen 2, and to prevent the cleaning liquid and the electrolyte in the voltaic pen 2 from being discharged to the outside by gravity. A lower supporter (40); The method of claim 1, The upper supporter (10) and the lower supporter (40), the coupling member 34 of the body (30) is characterized in that formed of any one of polyvinyl chloride, polypropylene, polyethylene, high density polyethylene material. The method of claim 1, The body 30 is characterized in that formed of a breathable non-woven fabric layer (32) to prevent the foreign matter in the soil or soil is introduced into the voltaic (2). The method of claim 1, Net member 36 in the body 30 is characterized in that made of any one of stainless steel, polyvinyl chloride, polypropylene, polyethylene, high density polyethylene. The electrokinetic device according to claim 1, wherein a concentration sensor 22 and a water level sensor 24 are provided on the upper surface of the upper support 10 to detect the hydrogen ion concentration index and the water level of the washing liquid. .