KR101206925B1 - SBR Washing System for contaminated soils, SBR Washing Apparatus for contaminated soils and SBR Washing Method for contaminated soils - Google Patents

Abstract

PURPOSE: A sequencing batch type polluted soil washing system using floatation, a sequencing batch type polluted soil washing apparatus, and a sequencing batch type polluted soil washing method are provided to improve the efficiency of operations by successively operating a plurality of sequencing batch type polluted soil washing units with a pre-determined interval. CONSTITUTION: A sequencing batch type polluted soil washing system using floatation includes at least two sequencing batch type polluted soil washing units(100), a flux adjusting bath(200), a water treatment unit(300), and a controller(400). The washing units implement operations and washing processes with a cycle containing a polluted soil and washing water introducing unit, a high pressure aeration-based mixture, a settling unit, a wastewater draining unit, and a washed soil exhausting unit. The flux adjusting bath is connected to the washing units. Wastewater from the washing units is introduced into the flux adjusting bath. The water treatment unit purifies the wastewater. The controller differently controls the operational time of the washing units. The washing units are successively operated by the controlling unit. [Reference numerals] (200) Flux adjusting bath; (300) Water treatment unit; (410) Main controller

Description

SBR Washing System for contaminated soils, SBR Washing Apparatus for contaminated soils and SBR Washing Method for contaminated soils}

The present invention relates to a continuous batch contaminated soil washing system, a continuous batch contaminated soil washing apparatus and a continuous batch contaminated soil washing method, and more particularly, a plurality of contaminated soil washing apparatuses are sequentially operated by setting a time sequence with a predetermined delay time. The present invention relates to a continuous batch soil cleaning system, a continuous batch soil cleaning system, and a continuous batch soil cleaning method that can improve the operation efficiency of a plurality of continuous batch soil cleaning devices.

In recent years, the living standards of human beings have been inevitably improved compared to the previous levels as the industrial development is highly developed, but the soil pollution accompanying industrial development is getting worse and threatening human life.

Soil pollution can occur not only in the surrounding oil reservoirs, military bases, coal mines, etc., but also in the beach sands of nearby seas in the case of marine oil-related accidents such as river sediment and marine dredged soil.

Due to the characteristics that such soil pollution is not easily revealed unlike water quality or air pollution, interest in its severity and treatment has recently increased.

A technique that has been studied a lot as an appropriate treatment method for these contaminated soils or sediments is Soil Washing.

At present, the soil washing apparatus for the purification of contaminated soil is equipped with a system for effectively treating soil contaminated with oil compounds using physical friction means or partially using chemical cleaning agents.

And, the most common type of washing tank uses a strong frictional force between the washing water and the soil by the high speed rotation of the rotary stirring shaft with a plurality of stirring blades in the washing tank as a washing means, but the shape of the stirring rotating shaft is different.

On the other hand, the current soil washing apparatus is a trend that is interested in the soil washing apparatus to simplify the operation for cleaning a large amount of soil by making a series of treatment process for washing the contaminated soil in the washing tank.

One aspect of the present invention is a continuous batch contaminated soil washing system that can improve the operation efficiency of a plurality of continuous batch contaminated soil washing apparatus by sequentially operating a plurality of contaminated soil washing apparatus in a predetermined time order with a predetermined delay time, continuous It is to provide a batch soil cleaning device and a continuous batch soil cleaning method.

Another aspect of the present invention is to reduce the production cost by using a plurality of continuous batch contaminated soil washing apparatus connected to one flow control tank and one water treatment device, and at the same time to improve the use efficiency of the flow control tank and water treatment device In addition, the present invention provides a continuous batch soil cleaning system, a continuous batch soil cleaning system, and a continuous batch soil cleaning method that can be expanded by a simple method of expansion of the continuous batch soil cleaning device.

Another aspect of the present invention is to determine the time sequence for the discharge of the effluent waste in a plurality of continuous batch soil cleaning device to operate sequentially to simplify the operation of the continuous batch soil cleaning system to clean a large amount of contaminated soil The present invention provides a continuous batch soil cleaning system, a continuous batch soil cleaning system, and a continuous batch soil cleaning method capable of minimizing power costs.

Another aspect of the present invention is to operate the contaminated soil and washing water injector / high pressure aeration mixer / sedimenter / washing wastewater discharger / washing completed soil discharger in one cycle to induce the escape of heavy metals and organic substances adsorbed to the contaminated soil of the contaminated soil The present invention provides a continuous batch soil cleaning system, a continuous batch soil cleaning system, and a continuous batch soil cleaning method capable of performing cleaning.

Continuous batch contaminated soil washing system according to an embodiment of the present invention is at least two continuous batch contaminated soil washing to clean the contaminated soil and washing water injector / high pressure aeration mixer / sedimenter / washing wastewater discharger / washing completed soil discharger in one cycle And a flow rate adjustment tank connected to the continuous batch soil cleaning apparatuses for introducing the washing waste water of each continuous batch soil cleaning apparatus; and a water treatment apparatus connected to the flow rate regulation tank to purify the washing waste water. And, the control device for controlling each continuous batch soil contaminated soil washing apparatus to be operated sequentially by controlling the operation time of each continuous batch soil contaminated soil washing apparatus in order to use the flow rate adjustment tank and the water treatment device in a chronological order; Characterized in that it comprises a.

The control device may further include a main controller for selectively inputting an operation command of the continuous batch soil cleaning system by a switch operation by a user, and a signal output from the main controller is transmitted with a predetermined delay time and is pre-programmed. It characterized in that it comprises a; a plurality of washing apparatus control unit for controlling the driving timing of each continuous batch soil cleaning apparatus by the code.

In addition, the predetermined delay time corresponds to one cycle operation time of the contaminated soil and washing water injector / high pressure aeration mixer / precipitator / washing wastewater discharger / cleaned soil discharger, each of which is run by a preprogrammed code. It is characterized by the same.

In addition, the continuous batch soil cleaning device, an ESB reactor providing a space for washing the soil to be washed, such as soil by the ESB method, and a stirring unit for stirring the soil contaminated in the ESB reaction tank; A high-pressure air injection unit for injecting high pressure air toward the contaminated soil and washing water introduced into the ESB reaction tank, and a floating material removal unit for removing foreign matter suspended by the stirring unit and the high-pressure air injection unit of the ESB reaction tank; It is characterized by including.

In addition, the ESB reaction tank, characterized in that it comprises a first portion is formed in a conical shape at the bottom of the bottom is filled with the washing target soil, the second portion is formed in a cylindrical shape at the top of the washing target soil and the washing water is filled. It is done.

In addition, the stirring unit, a stirring motor that is rotated when the power is applied, and a reducer connected to the stirring motor and interlocked according to the rotation of the stirring motor, and connected vertically to the reducer is accommodated in the ESR reaction tank is reduced The rotating shaft is interlocked during the rotation, and is coupled to the rotating shaft characterized in that it comprises a stirring blade for stirring the soil and washing water to be washed.

In addition, the high-pressure air injection unit, the first high pressure air injection nozzle is installed in the first portion of the ESB reaction tank is disposed so that the injection hole is directed upward, and the injection hole is installed in the second portion of the ESB reaction tank horizontal And a high pressure air supply source for supplying high pressure air to the second high pressure air injection nozzle and the second high pressure air injection nozzle disposed to face each other.

In addition, the apparatus for removing suspended solids includes at least one blower unit installed at an upper end of the SBI reaction tank and a collecting unit installed at the other end of the SBI reaction tank so as to face the blower unit to collect the suspended substances. Characterized in that.

In addition, contaminated soil and washing water injector 10 minutes / high pressure aeration mixer 30 minutes / sedimentation 10 minutes / washing waste water discharger 5 minutes / washed complete soil discharger is characterized in that 5 minutes to one cycle (1 hour).

Continuous batch contaminated soil washing apparatus according to an embodiment of the present invention is an ESB reactor providing a space for washing the soil to be washed, such as soil by the ESB method, and stirring the soil contaminated in the ESB reaction tank. And a high pressure air injection unit for injecting high pressure air toward the contaminated soil and washing water introduced into the ESR reaction tank, and a floating unit for removing foreign matter suspended by the stirring unit and the high pressure air injection unit of the ESR reaction tank. And a material removal unit.

In addition, the ESB reaction tank operates the contaminated soil and washing water injector / high pressure aeration mixer / precipitator / washing wastewater discharger / washing completed soil discharger in one cycle to induce the removal of heavy metals and organic substances adsorbed to the contaminated soil. It is characterized by washing.

In addition, the high-pressure air injection unit, the first high pressure air injection nozzle is installed in the first portion of the ESB reaction tank is disposed so that the injection hole is directed upward, and the injection hole is installed in the second portion of the ESB reaction tank horizontal It characterized in that it comprises a second high-pressure air injection nozzle disposed to face in the direction.

In addition, the apparatus for removing suspended solids includes at least one blower unit installed at an upper end of the SBI reaction tank and a collecting unit installed at the other end of the SBI reaction tank so as to face the blower unit to collect the suspended substances. Characterized in that.

In addition, three blowing units are installed in the ESR reaction tank, and each of the three blowing units is installed so that the blowing direction is directed toward the collecting unit, characterized in that for transporting the suspended matter on the water surface to the collecting unit.

Continuous batch soil cleaning method according to an embodiment of the present invention, the step of putting the soil and washing water, such as contaminated soil in the SBI reaction tank, the soil and washing water to be washed with a stirring unit in the ESR reaction tank And mixing the high pressure aeration to separate foreign substances such as oil components while floating the soil to be washed by aeration by spraying high pressure compressed air at the same time, and precipitating the soil to be separated from which the foreign matter is separated; And draining the washing waste water from the esvial reactor, and discharging the soil to be washed in the esvial reactor.

In addition, the esvial reaction tank is provided with at least two, characterized in that each esvial reaction tank is operated sequentially by setting the time sequence of each esvial reaction tank to control all the operating time of each esvial reaction tank differently. .

Therefore, the continuous batch soil cleaning system, continuous batch soil cleaning system and continuous batch soil cleaning method according to an embodiment of the present invention by operating a plurality of soil soil cleaning device in a sequential order with a predetermined delay time sequentially There is an effect that can improve the operation efficiency of a plurality of continuous batch soil cleaning device.

In addition, the continuous batch contaminated soil washing system, the continuous batch contaminated soil washing apparatus and the continuous batch contaminated soil washing method according to an embodiment of the present invention is connected to a plurality of continuous batch contaminated soil washing apparatus to one flow regulating tank and one water treatment apparatus. In addition, the manufacturing cost can be reduced, and the use efficiency of the flow control tank and the water treatment device can be improved, and further, the expansion of the continuous batch soil cleaning device can be performed by a simple method.

In addition, the continuous batch contaminated soil washing system, the continuous batch contaminated soil washing apparatus and the continuous batch contaminated soil washing method according to an embodiment of the present invention by sequentially setting the time sequence for the discharge of the washing waste water in a plurality of continuous batch contaminated soil washing apparatus It is possible to clean a large amount of contaminated soil by simplifying the operation of the continuous batch soil cleaning system by operating the same as well as minimizing the power cost.

In addition, the continuous batch contaminated soil washing system, the continuous batch contaminated soil washing apparatus and the continuous batch contaminated soil washing method according to an embodiment of the present invention is a contaminated soil and washing water injector / high pressure aeration mixer / precipitator / washing wastewater discharger / washing completed soil By driving the ejector in one cycle, the heavy metal and organic substances adsorbed to the contaminated soil are induced to remove the contaminated soil.

1 is a view showing a continuous batch soil cleaning system according to an embodiment of the present invention.
2 is a view showing the flow rate adjustment tank and the water treatment device shown in FIG.
3 is a cross-sectional view showing a continuous batch soil cleaning apparatus according to an embodiment of the present invention.
FIG. 4 is a flow chart showing a series of treatment steps performed in the esvial reactor shown in FIG. 3.
5 is a perspective view showing a continuous batch soil cleaning device shown in FIG.
6 is an exploded perspective view showing the continuous batch soil cleaning device shown in FIG.
7 is a plan view showing the continuous batch soil cleaning apparatus shown in FIG.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings.

1 is a view showing a continuous batch soil cleaning system according to an embodiment of the present invention, Figure 2 is a view showing the flow control tank and the water treatment apparatus shown in FIG.

1 and 2, the continuous batch soil cleaning system 10 according to an embodiment of the present invention is a contaminated soil and washing water injector / high pressure aeration mixer / sedimentation / washing wastewater discharger / washing completed soil discharger At least two continuous batch soil cleaning devices 100 which are driven and washed in one cycle, and connected to the continuous batch soil cleaning devices 100 to which the washing wastewater of each continuous batch soil cleaning device 100 is introduced. Each continuous batch type is connected to the flow regulating tank 200, the water treatment apparatus 300 connected to the flow regulating tank 200 to purify the washing waste water, and the flow regulating tank 200 and the water treatment apparatus 300 in order of time. Including a control device that controls each continuous batch soil cleaning device 100 to be operated sequentially by controlling all the operating time of the soil cleaning device 100 differently. It is.

Continuous batch soil cleaning device 100 is to clean the contaminated soil by the SBI method, this continuous batch soil cleaning device 100 is contaminated soil and washing water injector / high pressure aeration mixer / sedimentation / washing waste water discharge / Soil is discharged in one cycle to complete the cleaning process so that a series of treatment process is made in the continuous batch soil cleaning device (100).

The continuous batch soil cleaning devices 100 in the continuous batch soil cleaning system 10 according to the embodiment of the present invention is composed of at least two or more, for example, a continuous batch as shown in FIG. Soil contaminant washing apparatus 100 may be composed of three.

For convenience of description, the continuous batch soil cleaning devices 100 according to an embodiment of the present invention is to be provided with three, the first batch is disposed on the upper surface of the contaminated soil cleaning device (100A), in the middle The arrangement is called the second continuous batch soil cleaning device 100B, and the one disposed below is called the third continuous batch soil cleaning device 100C.

Here, the first continuous batch contaminated soil washing apparatus 100A, the second continuous batch contaminated soil washing apparatus 100B, and the third continuous batch contaminated soil washing apparatus 100C have the same configuration except that the arrangement position is different. The detailed description of each of these continuous batch soil cleaning device 100 will be described later with reference to FIGS.

The flow rate adjustment tank 200 defines a flow rate defining the washing wastewater transferred from the first continuous batch soil cleaning device 100A, the second continuous batch soil cleaning device 100B, and the third continuous batch soil cleaning device 100C. It is configured to transfer to the next water treatment apparatus 300 constantly.

That is, the flow rate adjusting tank 200 follows the washing wastewater introduced from the first continuous batch contaminated soil washing apparatus 100A, the second continuous batch contaminated soil washing apparatus 100B, and the third continuous batch contaminated soil washing apparatus 100C. Transfer to the water treatment apparatus 300 of the step.

The flow rate adjustment tank 200 is a water treatment device for washing wastewater introduced from the first continuous batch soil contaminated washing apparatus (100A), the second continuous batch soil contaminated washing apparatus (100B), the third continuous batch contaminated soil washing apparatus (100C). In order to discharge to 300 may be provided with a pump 210 therein.

The water treatment device 300 is a device for purifying the washing waste water transferred from the flow adjusting tank 200 to be discharged to the outside, the water treatment device 300 is a waste water is decomposed by the electrolysis method to react with the inorganic coagulant to form sludge An electric reaction tank 310, a neutralization tank 320 for neutralizing the washing waste water transferred from the electric reaction tank 310, and a flocculation tank 330 to agglomerate and flocculate the sludge transferred from the neutralization tank 320; , A treatment for treating the sludge discharged from the settling tank 340 and the electric reaction tank 310, the neutralization tank 320, the coagulation tank 330, the settling tank 340 to precipitate the floc transferred from the coagulation tank 330 It is configured to include a tank (350).

The washing wastewater introduced into the electric reactor 310 is decomposed by the electrode rod 311 connected to the power source. Since the inorganic coagulant mixed with the washing wastewater introduced into the electric reaction tank 310 promotes dissociation by the electric reaction, it effectively works to decompose dissolved substances and colloidal particles, and the fan 312A of the reaction promoter motor 312. While increasing by contact with the electrode 311 while spreading by mixing the washing waste water in the electric reaction tank 310 to maximize the reaction to further transfer to the neutralization tank (320).

In addition, since the washing waste water is introduced into the electric reaction tank 310 using the pump 313, the reaction efficiency is further increased by introducing the neutralization tank inlet pipe 314 while preventing sludge settling in the electric reaction tank 310. It is possible to increase, and some of the settling sludge having a high settling property is introduced into the treatment tank 350 through the sludge discharge pipe 315 of the electric reaction tank 310.

The washing wastewater reacted sufficiently in the electric reactor 310 is transferred to the neutralization tank 320 through the neutralization tank inlet pipe 314, and the floc of the colloidal particles is further stabilized by mixing the polymer coagulant in the neutralization tank 320. Sludge flocs left after being transferred to the flocculation tank 330 are introduced into the treatment tank 350 through the flocculation tank sludge discharge pipe 321.

The floc of the stabilized washing wastewater introduced into the flocculation tank 330 through the flocculation tank inlet pipe 322 is larger and stabilized by slow stirring the flocculation tank agitation motor 331, and is transferred to the precipitation tank 340, and The remaining sludge floc flows into the treatment tank 350.

Wastewater stabilized through the settling tank inlet 332 is transferred to the settling tank 340, the majority of the flocculated sludge in the settling tank 340 is precipitated to the bottom and the fine floc is a plurality of filtration membranes installed in the settling tank (340) 341), it is possible to purify the flocculated sludge of the treated water.

And the washing waste water is discharged through the treated water discharge pipe 342 and the sludge precipitated in the sedimentation tank 340 is transferred to the treatment tank 350 through the sedimentation tank sludge discharge pipe 343 and the treatment tank inlet pipe 344, the sedimentation tank Sludge in the 340 can be discharged by the sedimentation tank sludge discharge valve 345, it is possible to facilitate the transfer to the treatment tank 350 by injecting air into the treatment tank inlet pipe 344.

The sludge that has been transferred to the treatment tank 350 separates the sludge and the treated water to settle the sludge and chemically treats the treated water, and then transfers the treated water back to the flow rate adjusting tank 200 so as to completely treat the wastewater.

Continuous batch soil cleaning system 10 according to an embodiment of the present invention is to operate the operation time of each continuous batch soil cleaning device 100 in order to use the flow control tank 200 and the water treatment device 300 in a time sequence. By controlling all differently, each continuous batch soil cleaning device 100 includes a control device 400 for controlling to operate sequentially.

The control device 400 controls all the different operating time of each continuous batch soil cleaning device 100, for this purpose, the control device 400 is the first continuous batch soil cleaning device 100A and the second continuous Control signals for driving the batch soil cleaning device 100B and the third continuous batch soil cleaning device 100C are sequentially generated with a predetermined delay time.

The control device 400 includes a main controller 410 to selectively input an operation command of the continuous batch soil cleaning system 10 by a switch operation by a user, and a signal delayed from the main controller 410 by a predetermined delay. It includes a plurality of cleaning device control units 420 to control the driving timing of each continuous batch soil cleaning device 100 by a pre-programmed code transmitted over time.

The main controller 410 may output a control signal for driving each continuous batch soil cleaning apparatus 100 by a user operating a predetermined switch. Control signals for driving the continuous batch soil cleaning device 100 output from the main controller 410 may be transmitted to each of the plurality of cleaning device control units 420.

The plurality of cleaning device control units 420 are provided in the first continuous soil contaminant washing apparatus 100A to perform the operation of the first continuous batch soil contaminant washing apparatus 100A by using a pre-programmed code. The second washing device control unit provided in the device control unit 421 and the second continuous batch soil cleaning device 100B to perform the operation of the second continuous batch soil cleaning device 100B by a pre-programmed code. 422 and a third washing device control unit 423 provided in the third continuous batch soil cleaning device 100C to perform the operation of the third continuous batch soil cleaning device 100C by using a pre-programmed code. It may be configured to include.

Here, the pre-programmed codes of the first washing machine control unit 421, the second washing machine control unit 422, and the third washing machine control unit 423 may use the same program codes.

For example, the first washing machine control unit 421, the second washing machine control unit 422, and the third washing machine control unit 423 are each the first continuous batch type soil cleaning device 100A and the second continuous unit. Batch contaminated soil washing device (100B), the third continuous batch contaminated soil washing device (100C) is a contaminated soil and washing water input (10 minutes) / high pressure aeration mixer (30 minutes) / sedimentation (10 minutes) / washing waste water discharger ( 5 minutes) / washed soil discharger (5 minutes) in order to operate in one cycle (1 hour), the first continuous soil contaminated soil washing apparatus (100A), the second continuous batch soil contaminated soil washing apparatus (100B), the third continuous batch The pre-programmed code of the contaminated soil washing apparatus 100C may be executed.

Next, a description will be given of the operation of the continuous batch soil cleaning system according to the embodiment of the present invention.

First, when an operation command of the continuous batch soil cleaning system 10 is input, the main controller 410 is the first continuous batch soil cleaning device (100A), the second continuous batch soil cleaning device (100B), the third continuous A control signal for operating the batch soil cleaning device 100C is applied to the respective cleaning device control units 420.

At this time, the main controller 410 is a control signal for driving the first continuous soil contaminated soil cleaning device (100A), the second continuous soil contaminated soil cleaning device (100B), the third continuous soil contaminated soil cleaning device (100C). The predetermined delay time is generated sequentially, wherein the predetermined delay time is the soil contaminated soil and the washing water injector (10 minutes) / high pressure aeration mixer in which each continuous batch contaminated soil washing apparatus 100 is executed by a pre-programmed code. 30 minutes) / precipitator (10 minutes) / washed wastewater discharger (5 minutes) / washed soil discharger (5 minutes).

The operation sequence of the first continuous batch contaminated soil washing apparatus, the second continuous batch contaminated soil washing apparatus and the third continuous batch contaminated soil washing apparatus may be combined in any order.

In other words, the first continuous batch soil cleaning device (100A), the second continuous batch soil cleaning device (100B), the third continuous batch soil cleaning device in order to operate a predetermined delay time, or The first continuous soil contaminated soil washing apparatus 100A, the third continuous soil contaminated soil washing apparatus 100C, and the second continuous batch contaminated soil washing apparatus 100B are operated with a predetermined delay time, or the second Continuous batch-type contaminated soil washing device, first continuous contaminated soil washing apparatus (100A), third continuous batch-contaminated soil washing apparatus (100C) in order to operate a predetermined delay time, or second continuous batch contaminated soil The washing apparatus 100B, the third continuous batch soil cleaning device 100C, and the first continuous batch soil cleaning device 100A are operated for a predetermined delay time or the third continuous batch soil cleaning device. 100C, first continuous batch Operate with a predetermined delay time in the order of the contaminated soil cleaning device 100A, the second continuous batch soil cleaning device 100B, or the third continuous batch soil cleaning device 100C, the second continuous batch soil The washing apparatus 100B and the first continuous soil contaminant washing apparatus 100A may be operated at a predetermined delay time.

Accordingly, each washing apparatus control unit (421 ~ 423) by the control signal output from the main controller 410, the first continuous batch type soil washing apparatus 100A sequentially set the time order with a delay time of 1 hour ), The second continuous batch soil cleaning device (100B), the third continuous batch soil cleaning device (100C) is operated by a pre-programmed code.

That is, the first washing device control unit 421 executes the preprogrammed code for operating the first continuous batch soil cleaning device 100A for one hour under the control of the main controller 410, and the second washing device. The control unit 422 executes the preprogrammed code for driving the second continuous batch soil cleaning device 100B for one hour after one hour by the control of the main controller 410, and the third washing device control unit. 423 executes the preprogrammed code for driving the third continuous batch soil cleaning apparatus 100C for one hour after one hour under the control of the main controller 410.

Therefore, the continuous batch soil cleaning system 10 according to the embodiment of the present invention, the first continuous soil contaminated soil cleaning device (100A), the second continuous soil contaminated soil cleaning device (100B), the third continuous soil contaminated soil By operating the washing apparatus 100C in a predetermined time sequence with a predetermined delay time, it is possible to improve the operating efficiency of the plurality of continuous batch soil cleaning apparatus 100.

In addition, the continuous batch contaminated soil washing system 10 according to the embodiment of the present invention is used by connecting three continuous batch contaminated soil washing apparatus 100 to one flow regulating tank 200 and one water treatment apparatus 300. By reducing the manufacturing cost and at the same time it is possible to improve the utilization efficiency of the flow control tank 200 and the water treatment device 300, and further, the expansion of the continuous batch soil cleaning device 100 can be performed by a simple method. have.

In addition, the continuous batch contaminated soil washing system 10 according to an embodiment of the present invention by setting the time sequence of the washing waste water for the three continuous batch contaminated soil washing apparatus (100A ~ 100C) to operate sequentially by the continuous batch contaminated soil By simplifying the operation of the cleaning system 10 can not only clean a large amount of contaminated soil, but also has the effect of minimizing the power cost.

Next, the continuous batch soil washing apparatus according to an embodiment of the present invention with reference to Figures 3 to 7 will be described.

3 is a cross-sectional view showing a continuous batch soil cleaning apparatus according to an embodiment of the present invention, Figure 4 is a flow chart showing a series of processing steps performed in the ESB reactor shown in Figure 3, Figure 5 is shown in Figure 3 6 is an exploded perspective view illustrating the continuous batch soil cleaning device shown in FIG. 3, and FIG. 7 is a plan view illustrating the continuous batch soil cleaning device shown in FIG. 3. .

As shown in Figure 3 to 7, the continuous batch soil washing apparatus 100 according to an embodiment of the present invention, the ESB reactor for providing a space for washing the soil soil by the ESB method (110) And, a high pressure air injection unit 130 for injecting high pressure air toward the contaminated soil and washing water introduced into the ESR reaction tank 110, the stirring unit 120 for stirring the soil contaminated into the ESB reaction tank 110 and It is configured to include a floating material removal unit 140 for removing the foreign matter suspended by the stirring unit 120 and the high-pressure air injection unit 130 of the ESB reaction tank 110.

SBI reactor 110 is a contaminated soil by operating the contaminated soil and washing water injector (S100) / high pressure aeration mixer (S200) / precipitator (S300) / washing wastewater discharge (S400) / washing completed soil discharger (S500) in one cycle Induces the removal of heavy metals and organic substances adsorbed on the soil to wash the contaminated soil.

 The ESB reactor 110 is formed in a cylindrical shape with a metal material as a whole and has a conical shape at its lower end, that is, a hollow cone shape inside, and an inlet 111 is formed at an upper surface thereof, and an outlet 112 is extended at a bottom surface thereof. .

That is, the ESR reaction tank 110 is formed in a conical shape at the bottom of the first portion 113 to be filled with the soil to be cleaned, such as contaminated soil, and formed in a cylindrical shape at the top of the soil to be washed and the washing water is filled. And a second portion 114.

On the other hand, in the drawing, although the ESB reactor 110 is shown as a mixture of cylindrical and conical, but is not limited to this, it can be formed that the square and conical is mixed.

In addition, the ESB reaction tank 110 includes a water input pipe (not shown) for supplying water to the ESB reaction tank 110, and a discharge pipe (not shown) for discharging the washing waste water from the ESB reaction tank 110 to the flow adjusting tank 200. H) may be provided.

Stirring unit 120 serves to agitate the washing target soil and washing water introduced into the ESB reaction tank (110).

That is, the stirring unit 120 is agitated so that heavy metals and organic substances in the soil to be washed can be easily separated by the washing water, and the soil contaminated with large particles in the soil to be washed by the centrifugal force in the ESR reactor 110. It can be located at the bottom in the ESB reactor 110 in a separated state.

The stirring unit 120 is connected to the motor 121 and the motor 121 is rotated when the power is applied, the reducer (not shown) that is linked to the rotation of the motor 121, and connected to the reducer vertically SB The inside of the AL reactor 110 is provided with a rotating shaft 122 that is interlocked during the rotation of the reducer, and the stirring blade 123 coupled to the rotating shaft 122 to stir the soil and washing water to be washed.

The high pressure air injection unit 130 is formed at the center of the bottom surface adjacent to the outlet 112 of the SBI reaction tank 110. The high-pressure air injection unit 130 applies high-pressure air to the contaminated soil and the washing water, thereby floating the contaminated soil and rubbing the contaminated soil with each other. Make it easy.

The high pressure air injection unit 130, the first high-pressure air injection nozzle 131 is installed in the first portion 113 of the ESB reaction tank 110 is disposed so that the injection hole is directed upward, and the ESB reaction tank ( The second high pressure air injection nozzle 132 and the first high pressure air injection nozzle 131 and the second high pressure air injection nozzle 132 installed in the second part 114 of the 110 to be disposed so that the injection hole faces the horizontal direction. It is configured to include a high pressure air source (not shown) for providing a high pressure air to the).

That is, the first high pressure air injection nozzle 131 according to the embodiment of the present invention is disposed at an inner lower position of the ESR reactor 110 to inject high pressure air upwards to separate contaminants from the contaminated soil. At the same time, soil particles, pollutants, and wash water can be circulated up and down.

The second high pressure air injection nozzle 132 is disposed at an internal intermediate position of the SB reactor 110 to inject high pressure air in a horizontal direction to separate pollutants from the contaminated soil, and at the same time, soil particles, pollutants, Allow the wash water to circulate up and down.

Therefore, when the high pressure air is supplied through the high pressure air supply source and is injected from the first high pressure air injection nozzle 131 and the second high pressure air injection nozzle 132, oxygen contained in the high pressure air is contained in the SBI reactor 110. Is dissolved while aeration to increase the dissolved oxygen of the water is applied, not only to increase the cleaning efficiency of the contaminated soil through the decomposition of organic matter by the microorganisms active in the ESB reactor 110, at the same time forced by the injection force of high-pressure air As it is circulated, the soil particles, contaminants, and washing water in the ESB reactor 110 are forced to circulate to increase the washing efficiency of the contaminated soil.

Therefore, the SBI reaction tank 110 according to the embodiment of the present invention is continuously and smoothly carried out through the stirring unit 120 and the high-pressure air injection unit 130, the aeration and forced circulation to improve the cleaning efficiency of contaminated soil To be maximized.

The floating material removing unit 140 removes the floating material on the water surface by injecting air onto the water surface of the ESB reaction tank 110 from the inside of the upper part of the ESB reaction tank 110.

Floating material removal unit 140 according to an embodiment of the present invention by injecting the air inclined to the floating material generated on the water surface of the SB reaction tank 110 to collect the floating material by the force of the injection air 142 Transfer to.

The suspended matter removing unit 140 is at least one blower unit 141 installed at the upper end of the SBI reaction tank 110 and a collecting unit installed at the other end of the SBI reaction tank 110 to collect the suspended substances ( 142).

The blowing unit 141 is installed to be inclined slightly downward toward the water surface at a slightly higher position from the water surface to inject air obliquely toward the floating material on the water surface.

The blowing unit 141 is preferably configured as an axial flow blowing unit 141 for efficient blowing, and the installation position and the number of installation of the blowing unit 141 is appropriate according to the shape and size of the SB reaction tank 110. Can be set to

In the present invention, it is shown that three blowing units 141 are installed in the ESR reaction tank 110, each of these three blowing units 141 is installed so that the blowing direction toward the collecting unit 142, the water surface The suspended solids phase is transferred to the collection unit 142.

Preferably, the suspended solids collected in the collection unit 142 are naturally discharged by gravity, but when natural discharge cannot be caused by gravity, a discharge pump 142A, which is a forced discharge means, is connected to the collection unit 142. Can be forced out.

That is, the inlet of the discharge pump 142A and the collection unit 142 is connected to the connecting pipe 142B, the outlet of the discharge pump 142A is connected to the discharge pipe 142C collected in the collection unit 142 The material may be forcibly discharged to the outside of the ESB reactor 110 through the discharge pipe 142C by driving the discharge pump 142A.

According to the floating material removing unit 142 according to the present invention, when the blowing unit 141 is injected to the floating material generated on the water surface of the ESB reaction tank 110 at an angle, the blowing unit 141 The suspended solids on the water surface are transferred to the collecting unit 142 which is installed to face each other and is introduced into the collecting unit 142 by the force of the injection air injected at an angle. In addition, the suspended solids collected in the collection unit 142 may be forcibly discharged to the outside of the SBI reaction tank 110 by the discharge pump 142A.

Therefore, since the suspended solids removing unit 140 according to the embodiment of the present invention is made by removing the suspended solids by blowing air, it uses a simple blowing facility using ambient air without disturbing the inside of the ESB reaction tank 110. By simplifying the structure or installation of the device, it is possible to smoothly remove suspended solids at low cost.

Next, the operation of the continuous batch soil cleaning apparatus according to an embodiment of the present invention will be described.

First, the soil to be polluted soil is put into the ESR reaction tank 110, the ESR reaction tank 110 is a contaminated soil and washing water input (S100), high pressure aeration mixer (S200), precipitator (S300), washing The waste water discharger (S400), the washing process is completed through the cycle of the discharged soil discharge (S500), wherein the soil to be settled at the time of the settler (S300) to the outside through the outlet 112 to the washed soil discharger (S500) Is discharged, the washing waste water is transferred to the flow rate adjusting tank 200 through the discharge pipe (unsigned) in the washing waste water discharge (S400).

Looking in detail the series of cycle processes occurring in the SBI reactor 110, first, the soil and washing water injector (S100) is a period of the soil and washing water to be washed into the SBI reactor 110, which is introduced during this time The amount of soil to be washed and the amount of washing water may be introduced by the discharged amount and filled with the ESB reactor 110. At this time, the time of the soil to be washed and the washing water input may take about 10 minutes.

When the soil to be washed and the washing water are added to the SBI reaction tank 110 through the soil to be washed and the water to be washed, the high pressure aeration is agitated while supplying the high pressure air through the stirring unit 120 and the high pressure air injection unit 130. High pressure aeration mixer (S200) is started to mix. The high pressure aeration mixer (S200) time can typically proceed for 30 minutes.

During the high-pressure aeration mixer (S200), the separation of heavy metals and organic substances from the soil to be washed by the stirring blade 123 and high pressure air is carried out, in particular heavy metals and organic substances are floated by high pressure air. In other words, the soil to be washed is mixed through agitation and aeration to induce heavy metals and organic substances.

After the high pressure aeration mixer (S200), the stirring and aeration is stopped, and the settler (S300) for inducing gravity precipitation of the mixed sludge is performed. Precipitator (S300) is the time when the solid-liquid separation proceeds, the sedimentation time is typically performed for 10 minutes.

When the sedimentation of the soil to be washed is completed, the washing waste water is discharged to the flow adjusting tank 200 through a discharge pipe (not shown). Washing wastewater discharger (S400) is typically run for 5 minutes.

Then, when the discharge of the washing waste water is completed, the settled washing soil is discharged to the outside through the outlet 112. Completed soil discharge (S500) is typically run for 5 minutes.

As described above, the continuous batch soil cleaning device 100 is not only easy to operate but also has good sedimentation efficiency and separation of contaminants due to agitation and aeration by allowing a series of treatment processes to be performed in one ESR reactor 110. This has the effect of being easily done.

As described above, the continuous batch soil cleaning system according to an embodiment of the present invention by operating a plurality of soil soil cleaning device in a predetermined time sequence with a predetermined delay time, the operation efficiency of the plurality of continuous batch soil cleaning device It can be seen that the basic technical idea is to improve the performance. Therefore, many modifications may be made by those skilled in the art without departing from the scope and spirit of the present invention.

10 ... Continuous Batch Contaminated Soil Cleaning System 100 ... Continuous Batch Contaminated Soil Cleaning Systems
200 ... Flow Adjustment Tank 300 ... Water Treatment System
400 ... controller 410 ... main controller
420 ... Multiple control units S100 ... Contaminated soil and wash water dispenser
S200 ... high pressure aeration mixer S300 ... precipitator
S400 ... washed wastewater discharger S500 ... washed soil discharger

Claims (16)

At least two continuous batch soil cleaning devices for cleaning the contaminated soil and washing water injector / high pressure aeration mixer / precipitator / washing wastewater discharger / cleaning completed soil discharger in one cycle; and,
A flow rate adjustment tank connected to the continuous batch contaminated soil washing apparatuses for introducing the washing waste water of each continuous batch contaminated soil washing apparatus;
A water treatment device connected to the flow rate adjustment tank to purify the washing waste water; and
A control device for controlling each continuous batch soil cleaning device to operate sequentially by controlling the operation time of each continuous batch soil cleaning device differently in order to use the flow rate adjusting tank and the water treatment device in a time order;
Continuous batch soil cleaning system comprising a. The method of claim 1,
The control device includes:
A main controller to selectively input an operation command of the continuous batch soil cleaning system by a switch operation by a user;
A plurality of cleaning device control units for controlling the driving timing of each continuous batch soil cleaning device by a pre-programmed code transmitted by a signal output from the main controller with a predetermined delay time;
Continuous batch soil cleaning system comprising a. The method of claim 1,
The predetermined delay time is,
Each batch continuous soil cleaning device is characterized by the same batch operation time as one cycle operation time of the contaminated soil and wash water injector / high pressure aeration mixer / precipitator / wash wastewater discharger / cleaned soil discharger run by a preprogrammed code. Polluted soil cleaning system. The method of claim 1,
The continuous batch soil cleaning device,
An ESR reactor providing a space for washing the soil to be cleaned such as contaminated soil by the ESBI method;
A stirring unit for agitating the contaminated soil introduced into the ESB reaction tank,
A high pressure air injection unit for injecting high pressure air toward the contaminated soil and washing water introduced into the ESR reaction tank;
Continuous batch contamination soil washing system comprising a floating material removal unit for removing the foreign matter suspended by the stirring unit and the high-pressure air injection unit of the ESB reaction tank. 5. The method of claim 4,
The Esbial reactor,
A first portion formed in a conical shape at the bottom thereof, wherein the soil to be cleaned is filled;
Continuously formed contaminated soil cleaning system characterized in that it comprises a second portion formed in a cylindrical shape at the top and the washing target soil and washing water. 5. The method of claim 4,
The stirring unit,
A stirring motor that rotates when power is applied,
A reducer connected to the stirring motor and interlocked according to the rotation of the stirring motor;
A rotary shaft connected vertically to the reducer and accommodated in the ESR reactor and interlocked when the reducer rotates;
The continuous batch soil cleaning system characterized in that it is coupled to the rotating shaft having a stirring blade for stirring the soil to be washed and the washing water. 5. The method of claim 4,
The high pressure air injection unit,
A first high pressure air injection nozzle installed at a first portion of the ESR reaction tank and disposed such that an injection hole is directed upward;
A second high pressure air injection nozzle installed at a second portion of the ESR reaction tank and disposed so that the injection hole faces the horizontal direction;
And a high pressure air source for supplying high pressure air to the first high pressure air injection nozzle and the second high pressure air injection nozzle. 5. The method of claim 4,
The apparatus for removing suspended solids,
Continuous batch soil contaminated soil characterized in that it comprises at least one blowing unit is installed at the upper end of the ESB reaction tank, and the collecting unit is installed at the other end of the ESB reaction tank to collect the suspended matter so as to face the blowing unit. Cleaning system. The method of claim 1,
The contaminated soil and washing water injector 10 minutes / high pressure aeration mixer 30 minutes / sedimentation 10 minutes / washing waste water discharger 5 minutes / washed complete soil discharger is characterized in that the continuous discharge soil 5 minutes to 1 cycle (1 hour) Cleaning system. An ESR reactor providing a space for washing the soil to be cleaned such as contaminated soil by the ESBI method;
A stirring unit for agitating the contaminated soil introduced into the ESB reaction tank,
A high pressure air injection unit for injecting high pressure air toward the contaminated soil and washing water introduced into the ESR reaction tank;
Continuous batch contaminated soil washing apparatus comprising a floating material removal unit for removing the foreign matter suspended by the stirring unit and the high-pressure air injection unit of the ESB reaction tank. The method of claim 10,
The Esbial reactor,
Continuous operation of the contaminated soil and washing water injector / high pressure aeration mixer / precipitator / washing wastewater discharger / washing completed soil discharger in one cycle to induce the removal of heavy metals and organic substances adsorbed on the contaminated soil Batch contaminated soil cleaning device. The method of claim 10,
The high pressure air injection unit,
A first high pressure air injection nozzle installed at a first portion of the ESR reaction tank and disposed such that an injection hole is directed upward;
And a second high pressure air jet nozzle installed at the second part of the ESR reaction tank, the jet port being disposed in a horizontal direction. The method of claim 10,
The apparatus for removing suspended solids,
Continuous batch soil contaminated soil characterized in that it comprises at least one blowing unit is installed at the upper end of the ESB reaction tank, and the collecting unit is installed at the other end of the ESB reaction tank to collect the suspended matter so as to face the blowing unit. Washing device. The method of claim 13,
The air blowing unit is installed in the three ESB reaction tank,
Each of the three blowing units is installed so that the blowing direction toward the collecting unit is a continuous batch soil washing apparatus, characterized in that for transporting the suspended matter on the water surface to the collecting unit. Injecting the target soil and the washing water, such as contaminated soil in the SBI reaction tank,
A high pressure aeration mixing step of separating foreign substances, such as oil components, while floating the soil to be washed by aeration by mixing the soil to be washed with the washing water with a stirring unit in the ESR reaction tank and spraying high pressure compressed air;
Precipitating the soil to be washed with the foreign matter separated;
Draining the washing waste water from the esvial reactor;
A continuous batch soil cleaning method comprising the step of discharging the washing target soil is completed in the ESB reaction tank. 16. The method of claim 15,
The Esbial reactor is provided with at least two,
Continuous batch-type soil washing method characterized in that each esvial reaction tank is operated sequentially by determining the time sequence of each esbial reaction tank to control all the operating time of each esvial reaction tank.

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