JP3607152B2 - Contaminated water purification apparatus and method - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention belongs to a technical field related to a contaminated water purification device and a contaminated water purification method for purifying contaminated water contaminated with volatile contaminants composed of volatile organic chlorine compounds such as trichlorethylene and tetrachlorethylene.
[0002]
[Prior art]
As this type of contaminated water purification apparatus and contaminated water purification method, for example, Japanese Patent Laid-Open No. 10-249326 discloses that a vertical shaft is sealed and negative pressure is applied in order to purify contaminated water only inside the vertical shaft. Inhale the groundwater contaminated from the surrounding ground into the inside of the mine to fill the high water level, aerate the contaminated groundwater filled in the inside of the shaft and change the contained pollutants in the gas phase, Disclosed is a method for returning groundwater purified by pressurization by filling the inside of a vertical shaft with pollutants changed in gas phase to the surrounding ground. In addition, the pollutant which changed into the gas phase which filled the inside of the shaft is collected to the ground and purified.
[0003]
JP-A-10-249326, JP-A-10-277531, and JP-A-11-90410 disclose a plurality of wells and alternately repeat suction and aeration or pumping and injection.
[0004]
[Problems to be solved by the invention]
In the former contaminated water purification device and the contaminated water purification method, the contaminated groundwater and the purified groundwater are mixed because the contaminated groundwater and the purified groundwater share the same access path to the vertical shaft. Cheap. In addition, since the aeration is performed after the shaft shaft is filled with a large amount of contaminated groundwater, the gas phase change of the pollutant is not sufficiently achieved. For this reason, there exists a problem that purification performance is low.
[0005]
Furthermore, in order to make the inside of a vertical shaft into a negative pressure, there exists a problem that installation of a large sized suction device is needed on the ground. Furthermore, there is a problem that the contaminated water cannot be purified except for the vertical shaft.
[0006]
The latter contaminated water purification apparatus and contaminated water purification method are unsuitable as a purification system in a small area because the number of wells is increased and a ground device is also required.
[0007]
The present invention has been made in consideration of such problems, and it is possible to purify contaminated water with high performance without installing a large device on the ground, and to be used in a place other than a shaft. It is a main subject to provide a contaminated water purification apparatus capable of performing the same, and a contaminated water purification method which is a preferred method of use when this contaminated water purification apparatus is used in a shaft.
[0008]
[Means for Solving the Problems]
In order to solve the above-described problem, the contaminated water purification apparatus according to the present invention employs the following means.
[0009]
That is, as described in claim 1, a water intake port for sucking contaminated water contaminated with volatile pollutants, a drain port for discharging purified water from which pollutants are removed, and a gas phase Contained in a closed processing chamber that is opened separately from the exhaust port through which the changed pollutant is discharged. Flowing means for imparting fluidity to the contaminated water and purified water inside the processing chamber, and included in the contaminated water The gas phase change means for changing the pollutant in the gas phase and the gas-liquid separation means for separating the pollutant changed in the gas phase from the contaminated water and the purified water are incorporated. Is provided below the gas-liquid separation surface so as to be located below the surface of the contaminated water, and is provided with a float that floats the treatment chamber on the surface of the contaminated water .
[0010]
In this means, the contaminated water is sucked into the processing chamber from the water inlet, and the purified water purified in the processing chamber is discharged from the separate drain port, so that mixing of the contaminated water and the purified water is avoided. In addition, the pollutant flowing in the processing chamber is changed in the gas phase by the gas phase changing means, and the drain is discharged in a state where the gas and the liquid are separated below the gas-liquid separation surface. For this reason, contaminated water is purified with high performance. In addition, the treatment chamber is suspended and supported on the surface of the contaminated water in a state where the inflow of air from the drain port is blocked. In addition, since the contaminated water is purified only inside the processing chamber, it is not necessary to install a large apparatus on the ground, and it can be used in a place other than a vertical shaft.
[0011]
In addition, as described in claim 2, a water intake port for sucking contaminated water contaminated with volatile pollutants, a drain port for discharging purified water from which pollutants have been removed, and a gas phase Contained in a closed processing chamber that is opened separately from the exhaust port through which the changed pollutant is discharged. Flowing means for imparting fluidity to the contaminated water and purified water inside the processing chamber, and included in the contaminated water The gas phase change means for changing the pollutant in the gas phase and the gas-liquid separation means for separating the pollutant changed in the gas phase from the contaminated water and the purified water are incorporated, and the gas-liquid separation means has an open port. The U-shaped drainage port with the upper side facing upward is placed below the gas-liquid separation surface and below the surface of the contaminated water.
[0012]
In this means, the opening position is set using a pipe, so that the purified water can be drained in a state where the pollutants are separated. Further, the drain outlet is sealed with purified water staying inside the U-shaped drain outlet.
[0013]
Further, according to the third aspect of the present invention, there is provided a polluted water purification device inserted into the shaft, and a water intake port for sucking contaminated water contaminated with volatile pollutants, and pollutants from the contaminated water. A sealed processing chamber in which purified water from which purified water is removed and an exhaust port from which the gas phase changed pollutant is discharged is provided separately, and the contaminated water, A flow means for imparting fluidity to the purified water, a gas phase changing means for changing the pollutants contained in the contaminated water in a gas phase, and a gas separating the pollutants and the purified water changed in gas phase from the contaminated water. incorporates a liquid separating means, Rutotomoni is installed so as to gas-liquid separation means located below the water surface of the contaminated water at below the gas-liquid separation surface drainage outlet, water inlet, the processing chamber between the drain outlet It is equipped with a packer that closes the gap in the vertical shaft .
[0014]
With this means, the pool of contaminated water and purified water within the vertical shaft is partitioned, and a circulation system in the ground can be formed.
[0015]
Further, as described in claim 4, in the contaminated water purification apparatus according to any one of claims 1 to 3 , the flow means and the gas phase change means are combined with means for injecting bubbles into the contaminated water. It is characterized by.
[0016]
In this means, the pollutant contained in the contaminated water is changed in the gas phase while imparting fluidity to the contaminated water by the pumping function of the bubbles.
[0017]
Further, as described in claim 5, in the contaminated water purification apparatus according to any one of claims 1 to 4, a pollutant purification means for purifying the pollutant changed in a gas phase is built in the processing chamber, The exhaust gas is characterized in that a gas from which contaminants have been purified is discharged.
[0018]
In this means, the pollutant changed in the gas phase by the pollutant purifying means is purified inside the processing chamber.
[0019]
Further, as described in claim 6, in the contaminated water purification apparatus according to any one of claims 1 to 5 , the fluidizing means, the gas phase changing means, and the gas-liquid separating means are connected by a pipe. And
[0020]
With this means, each means is connected by a pipe, so that it can be formed in a vertically-enclosed manner.
[0021]
Further, as described in claim 7, in the contaminated water purification apparatus according to any one of claims 1 to 6, the treatment chamber is formed in a cylindrical shape, and an exhaust port is opened near the upper end portion of the treatment chamber, and the lower end portion. A water inlet is opened in the vicinity, and a drain outlet is opened in the middle.
[0022]
By this means, the whole is formed in a cylindrical shape that can be easily inserted into the shaft.
[0023]
Furthermore, in order to solve the above-mentioned problem, the contaminated water purification method according to the present invention employs the following means.
[0024]
That is, as described in claim 8 , the entire contaminated water purification apparatus according to claim 7 is inserted and installed in a vertical shaft excavated in the ground, and the purified water is sucked from below the vertical shaft to obtain purified water. Without returning to the ground, it returns from the shaft to the inside and forms a circulation system, and only the pollutant whose gas phase has been changed or the gas from which the pollutant has been purified is released or collected.
[0025]
In this means, the entire contaminated water purification apparatus is inserted and installed in a vertical shaft, a circulation system is formed inside the vertical shaft, and the contaminated water is purified only inside.
[0026]
Further, as described in claim 9 , the entire contaminated water purification apparatus according to claim 1 is installed in a suspended state on the surface of a lake or a pool of contaminated water, and purified by inhaling contaminated water from below the contaminated water. It is characterized by draining a shallow upper part of the contaminated water to form a circulation system, and releasing the pollutant whose gas phase has been changed or the purified gas of the pollutant onto the water surface.
[0027]
In this means, it is installed in a lake or a pool of polluted water by floating, and the polluted water is purified by forming a circulation system according to the depth in water.
[0028]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of a contaminated water purification apparatus and method according to the present invention will be described below with reference to the drawings.
[0029]
FIG. 1 shows an embodiment (1) of a contaminated water purification apparatus and method according to the present invention.
[0030]
In this embodiment, a basic configuration suitable for use in the vertical shaft H or the lake L is shown, but FIG.
[0031]
This embodiment includes a processing chamber 1 which is sealed and divided into four. Each section of the processing chamber 1 is connected in series with the connection pipe 2 in the vertical direction.
[0032]
In the lowermost compartment of the processing chamber 1, a flow means 3 for imparting flowability to the contaminated water a and the purified water b is incorporated. Specific examples of the flow means include a submersible pump that sucks the contaminated water a, a bubble generator that injects bubbles into the contaminated water a, and the like. By the way, when the bubble generating device is adopted, when the pipe inner diameter is 5 cm and the air supply amount is 20 l / min, a head of 2 m can be obtained with a pumping amount of 1 to 2 l / min. In this section, a water inlet 4 is provided for sucking the contaminated water a with the fluid force applied by the fluid means 3.
[0033]
In the second compartment from the lowermost part of the processing chamber 1, a gas phase changing means 5 for changing the pollutant c contained in the contaminated water a into a gas phase is incorporated. Specific examples of the gas phase changing means 5 include a bubble generating device, an ultrasonic generating device that oscillates ultrasonic vibrations in the contaminated water a, and a spraying device that sprays the contaminated water a in a mist form. Incidentally, when the bubble generating device is employed, the purification rate can be made approximately 95 to 98% by aeration in one circulation.
[0034]
In the third compartment from the bottom of the processing chamber 1, gas-liquid separation means 6 for separating the pollutant c and the purified water b, which have been changed in vapor phase from the contaminated water a, is incorporated. Specific examples of the gas-liquid separation means 6 include an overflow device for dropping the stored contaminated water a containing the pollutant c changed in gas phase little by little, and a trap device for colliding the pollutant c changed in gas phase. Etc. are considered. In this section, a drain port 7 is provided through which purified water from which pollutants have been removed from the contaminated water a is discharged.
[0035]
In the uppermost section of the processing chamber 1, a pollutant purifying means 8 for purifying the pollutant c changed in gas phase is incorporated. As a specific example of the pollutant purification means 8, an activated carbon filter that adsorbs and captures the pollutant c changed in the gas phase can be considered. Note that an exhaust port 9 through which the gas d from which the contaminant c has been purified is discharged is provided in this section.
[0036]
In the basic configuration of the contaminated water purification apparatus according to the present invention, for example, the contaminated water purification apparatus is installed so as to be immersed in the lake L up to the gas-liquid separation means 6 including the drain port 7.
[0037]
Contaminated water a in the lake L is sucked into the processing chamber 1 from the water inlet 4, and purified water b purified inside the processing chamber 1 is discharged from a drain outlet separate from the water inlet 4. Therefore, mixing of the contaminated water a and the purified water b is avoided, and the purified water b is not immediately sucked from the water inlet 4. Further, the gas phase changing means 5 changes the contaminant c in the gas phase with respect to a limited amount of the contaminated water a flowing inside the processing chamber 1. Therefore, the contaminant c is surely changed in the gas phase. As a result, the contaminated water a can be purified with high performance.
[0038]
In addition, since the contaminated water a is purified only inside the processing chamber 1, it is not necessary to install a large apparatus on the ground, and the lake L that is a place other than the vertical shaft can be used without any trouble. Although not shown in the drawings, it is not necessary to explain that the vertically long shape of the processing chamber 1 is used by being installed in the vertical shaft.
[0039]
FIG. 2 shows (2) an embodiment of the contaminated water purification apparatus and method according to the present invention.
[0040]
In this embodiment, the one suitable for use in the lake L is shown.
[0041]
In this embodiment, the gas-liquid separation means 6 of the above-described embodiment (1) is improved.
[0042]
The gas-liquid separation means 6 of this embodiment is provided with a float 19 that floats the processing chamber 1 on the water surface of the lake L (contaminated water a). The float 19 is set to a buoyancy that positions the drain port 7 below the surface of the lake L. As shown in the drawing, a float 19 is provided around the gas-liquid separation means 6 so as to be stably floated against rocking.
[0043]
According to this embodiment, in addition to the effects and effects similar to those of the above-described embodiment (1), the floating support is provided on the surface of the lake L without special support means. Can do. Further, since the drain port 7 is located below the water surface of the lake L, the inflow of outside air to the gas-liquid separation means 6 is prevented, and the gas-liquid separation performance for separating the pollutant c and the purified water b is lowered. There is nothing to do.
[0044]
FIG. 3 shows (3) an embodiment of the contaminated water purification apparatus and method according to the present invention.
[0045]
In this embodiment, the one suitable for use in the lake L is shown.
[0046]
In this embodiment, the drain port 7 of the above-described embodiment (1) is improved.
[0047]
The drainage port 7 of this embodiment is formed in a U shape with the open port facing upward, and a half is raised inside the gas-liquid separation means 6. In this case, when the U-shaped pipe 7a is used, one end 7b of the U-shaped pipe is raised and opened inside, and the other end of the pipe is opened outside the gas-liquid separating means 6 to become the drain port 7.
[0048]
According to this embodiment, in addition to the effects and effects similar to those of the above-described embodiment (1), when the water surface of the lake L falls while being fixedly supported, the U-shaped drainage The drain port 7 is sealed with the purified water b stagnating inside the port 7 to prevent the outside air from flowing into the gas-liquid separation means 6.
[0049]
FIG. 4 shows (4) an embodiment of the contaminated water purification apparatus and method according to the present invention.
[0050]
In this embodiment, the one suitable for use in the shaft H is shown.
[0051]
This embodiment includes a cylindrical processing chamber 1 having a sealed double-pipe structure.
[0052]
The outer cylinder 1a constituting the processing chamber 1 is closed at the upper end and the lower end, is supported by the flange 10 at the ground entrance of the shaft H, and is inserted into the shaft H. A cylindrical exhaust port 9 is provided on the upper end surface of the outer cylinder 1a. Further, a drain port 7 is opened on the peripheral surface of the lower end portion of the outer cylinder 1a. Inside the outer cylinder 1a, a partition frame 1b is provided in the middle, a pollutant purification means 8 made of an activated carbon filter is built in the upper part, and the inner cylinder 1c is inserted in the lower part.
[0053]
The inner cylinder 1c has an upper end and a lower end closed, penetrates and is supported by the lower end surface of the outer cylinder 1a, and projects downward from the outer cylinder 1a. On the peripheral surface of the upper end portion of the inner cylinder 1c, a gas-liquid separating means 6 comprising an overflow device for collecting small holes is provided. A water inlet 4 is opened on the peripheral surface of the lower end portion of the inner cylinder 1c. Inside the inner cylinder 1 c, there are built in the means for flowing 3 and the gas phase changing means 5, which are made of a porous stone and constitute a bubble generating device in the vicinity of the water inlet 4. Note that an air conditioner compressor 11 installed on the ground is connected to the shared means via a flow rate adjusting valve 12.
[0054]
Further, in this embodiment, the gap between the upper side of the water inlet 4 of the inner cylinder 1 c and the vertical shaft H is closed by the packer 13.
[0055]
In this embodiment, the groundwater level is set lower than the gas-liquid separation means 6 and higher than the drain port 7. This installation position prevents inflow of air or the like into the processing chamber 1 and maintains the sealing property of the processing chamber 1.
[0056]
According to this embodiment, in addition to the effects and effects similar to those of the above-described embodiment (1), the purification process can be performed only inside the shaft H, and the devices can be installed on the ground. Almost no need to install.
[0057]
In addition, the entire structure of the processing chamber 1 is simplified by the combined use of the writing fluid means 3 and the gas phase changing means 5.
[0058]
Further, the packer 13 more reliably prevents the mixing of the contaminated water a and the purified water b, thereby forming a vertical shaft H divided in the vertical direction with respect to the packer 13 and a ground circulation system.
[0059]
FIG. 5 shows (5) an embodiment of the contaminated water purification apparatus and method according to the present invention.
[0060]
In this embodiment, the one suitable for use in the shaft H is shown.
[0061]
This embodiment is obtained by improving the shaft H of the above-described embodiment (4).
[0062]
The vertical shaft H of this embodiment has a well structure reinforced by the inner wall member 14. A portion where the packer 13 is attached below the inner wall member 14 is formed in the blind plate 14a, and a hole punching plate 14b provided with a large number of small holes on the upper and lower sides of the blind plate 14a.
[0063]
According to this embodiment, in addition to the effects and advantages similar to those of the above-described embodiment (4), the inner wall member 14 is reinforced, and the vertical erosion due to the flow of the contaminated water a and the purified water b is achieved. The mine H is prevented from collapsing. In addition, a circulation system is formed that is divided in the vertical direction on the basis of the vertical distance between the packer 13 and the blind plate 14a.
[0064]
FIG. 6 shows (6) an embodiment of the contaminated water purification apparatus and method according to the present invention.
[0065]
In this embodiment, the one suitable for use in the shaft H is shown.
[0066]
In this embodiment, the drain port 7 of the above-described embodiment (5) is improved.
[0067]
The drain port 7 of this embodiment is located above the flange 10. An impermeable sheet 20 is laid around the inner wall member 14 exposed on the ground surface. The inner wall member 14 is formed as a blind plate 14a only on the upper side and formed on a hole punching plate 14b provided with a large number of small holes on the lower side. The packer 13 is omitted.
[0068]
According to this embodiment, in addition to the effects and effects similar to those of the above-described embodiment (5), the contaminated water a and purified water b can be obtained via the ground without using the packer 13. Mixing is reliably prevented. In addition, the sheet 20 prevents the vertical shaft H from collapsing due to erosion due to the flow of the purified water b, and at the same time, enlarges the circulation system in the ground by making the penetration position of the purified water farther into the ground. Can do.
[0069]
FIG. 7 shows (7) an embodiment of the contaminated water purification apparatus and method according to the present invention.
[0070]
In this embodiment, the one suitable for use in the shaft H is shown.
[0071]
In this embodiment, the outer cylinder 1a and the exhaust port 9 of the above-described embodiment (4) are improved.
[0072]
In the outer cylinder 1a of this embodiment, an intake port 1d for taking in air or the like inside the shaft H is opened slightly below the partition frame 1b. A blower 14 installed on the ground is connected to the exhaust port 9 of this embodiment.
[0073]
According to this embodiment, in addition to the effects and effects similar to those of the above-described embodiment (4), the pits are forcibly forced by the blower 14 to remove volatile contaminants c contained in the ground. The air can be sucked into H and sucked from the intake port 1d and purified through the pollutant purifying means 8.
[0074]
FIG. 8 shows (8) an embodiment of the contaminated water purification apparatus and method according to the present invention.
[0075]
In this embodiment, the one suitable for use in the shaft H is shown.
[0076]
This embodiment is obtained by improving the pollutant purification means 8 of the above-described embodiment (2).
[0077]
The pollutant purification means 8 of this embodiment is installed on the ground.
[0078]
According to this embodiment, in addition to the effects and advantages similar to those of the aforementioned embodiment (4), the structure of the processing chamber 1 inserted into the shaft H can be further simplified. .
[0079]
FIG. 9 shows (9) an embodiment of the contaminated water purification apparatus and method according to the present invention.
[0080]
In this embodiment, the one suitable for use in the shaft H is shown.
[0081]
This embodiment is obtained by improving the outer cylinder 1a of the above-described embodiment (8).
[0082]
The outer cylinder 1a of this embodiment has a double tube structure. That is, the second outer cylinder 1e is externally provided on the outer side of the outer cylinder 1a. And 2nd drainage port 7 'from which purified water is discharged | emitted is opened in the middle part of the 2nd outer cylinder 1e.
[0083]
According to this embodiment, in addition to the effects and effects similar to those of the above-described embodiment (8), the drainage port 7 is trapped between the outer cylinder 1a and the second outer cylinder 1e. Since it is sealed with the purified water b, it can be installed in a wide range S where the groundwater level is lower than the gas-liquid separation means 6 and higher than the water inlet 4.
[0084]
FIG. 10 shows (10) an embodiment of the contaminated water purification apparatus and method according to the present invention.
[0085]
In this embodiment, the one suitable for use in the shaft H is shown.
[0086]
In this embodiment, the inside of the outer cylinder 1a of the above-described embodiment (8) is improved.
[0087]
Inside the outer cylinder 1a of this embodiment, there is provided a flow restraining means having a valve 15 that opens and closes the water inlet 4 corresponding to the water level inside the outer cylinder 1a. The valve 15 is moved up and down by a float 16 accommodated in the outer cylinder 1a. In addition, in order to ensure the smooth operation of the valve 15 and the float 16, the gas-liquid separation means 6 and the water inlet 4 are structured by a collection of small holes.
[0088]
According to this embodiment, in addition to the effects and effects similar to those of the above-described embodiment (8), in addition to the flow suppression means constituted by the valve 15 and the float 16, the inside of the processing chamber 1 It is possible to prevent an increase in the flow amount of the contaminated water a and to prevent a decrease in the gas phase change of the pollutant c by the gas phase changing means 5.
[0089]
FIG. 11 shows (11) an embodiment of the contaminated water purification apparatus and method according to the present invention.
[0090]
In this embodiment, the one suitable for use in the shaft H is shown.
[0091]
This embodiment is obtained by improving the processing chamber 1, the gas phase change means 5, and the gas-liquid separation means 6 of the above-described embodiment (8).
[0092]
The processing chamber 1 of this embodiment consists of a single tube. Moreover, the gas phase change means 5 of this embodiment consists of a spray device. Moreover, the gas-liquid separation means 6 of this embodiment consists of a trap device. The gas phase changing means 5 is mounted on a float 17 supported by an elastic material that moves up and down in accordance with the water level to prevent submersion. In addition, a telescopic structure 18 is provided in the air supply path to the gas phase changing means 5.
[0093]
According to this embodiment, in addition to the effects and advantages similar to those of the above-described embodiment (8), the gas phase change means 5 is more effective for the bubble pollutant c in the spray device than in the bubble generator. Since the gas phase change can be promoted, it is effective when sand or the like is not mixed in the contaminated water a.
[0094]
The above-described embodiments (1) to (11) do not prevent implementation in combination within the possible range.
[0095]
【The invention's effect】
As described above, in the contaminated water purification apparatus according to claims 1 to 3 of the present invention, the contaminated water is sucked from the water inlet and the purified water purified inside the processing chamber is discharged from the separate drain port. In addition, mixing of contaminated water and purified water can be avoided, and since there is a drain outlet below the gas-liquid separation surface, the gas can be drained with the gas separated from the purified water. In this case, since the contaminated water is purified only inside the processing chamber, there is no need to install a large device on the ground, and it can be used in places other than the shaft.
[0096]
In addition, the contaminated water purification method according to claim 8 of the present invention can be easily installed by simply inserting the entire contaminated water purification device into the vertical shaft, thereby allowing the contaminated water to be discharged from below the internal shaft. It is possible to form an underground circulation processing system in which the air is sucked and purified, and returned to the upper inside, and devices on the ground can be made unnecessary.
[0097]
Furthermore, the polluted water purification method according to claim 9 of the present invention can be installed by suspending the entire polluted water purification apparatus on the surface of a lake or a pool of polluted water, and inhales polluted water from below the polluted water. -It is possible to form a depth-compatible underwater circulation system that purifies and drains purified water in a shallow upper direction, eliminating the need for devices on the water surface.
[Brief description of the drawings]
FIG. 1 is a side view showing an embodiment (1) of a contaminated water purification apparatus and method according to the present invention.
FIG. 2 is a side view showing an embodiment (2) of the contaminated water purification apparatus and method according to the present invention.
FIG. 3 is a side view showing an embodiment (3) of the contaminated water purification apparatus and method according to the present invention.
FIG. 4 is a sectional view showing an embodiment (4) of the contaminated water purification apparatus and method according to the present invention.
FIG. 5 is a sectional view showing an embodiment (5) of the contaminated water purification apparatus and method according to the present invention.
FIG. 6 is a sectional view showing an embodiment (6) of the contaminated water purification apparatus and method according to the present invention.
FIG. 7 is a sectional view showing an embodiment (7) of the contaminated water purification apparatus and method according to the present invention.
FIG. 8 is a sectional view showing an embodiment (8) of the contaminated water purification apparatus and method according to the present invention.
FIG. 9 is a sectional view showing an embodiment (9) of the contaminated water purification apparatus and method according to the present invention.
FIG. 10 is a sectional view showing an embodiment (10) of the contaminated water purification apparatus and method according to the present invention.
FIG. 11 is a sectional view showing an embodiment (11) of the contaminated water purification apparatus and method according to the present invention.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Processing chamber 3 Flow means 4 Water inlet 5 Gas-phase change means 6 Gas-liquid separation means 7 Drain port 8 Pollutant purification means 9 Exhaust port 15 Valve (flow suppression means)
16 Float (flow suppression means)
a Contaminated water b Purified water c Contaminant

Claims (9)

Water intake port for sucking contaminated water contaminated with volatile pollutants, drain port for discharging purified water from which contaminated water has been removed, and exhaust ports for discharging gas phase-changed pollutants And a closed processing chamber that is opened separately, a flow means for imparting fluidity to the contaminated water and purified water, and a gas phase change of the pollutants contained in the contaminated water. Phase change means and gas-liquid separation means for separating the pollutant changed in gas phase from the contaminated water and purified water are incorporated, and the gas-liquid separation means has a drain outlet below the gas-liquid separation surface. A contaminated water purification apparatus comprising a float that is placed so as to be located below the surface of the water and floats the treatment chamber on the surface of the contaminated water. Water intake port for sucking contaminated water contaminated with volatile pollutants, drain port for discharging purified water from which contaminated water has been removed, and exhaust ports for discharging gas phase changed pollutants And a closed processing chamber that is opened separately, a flow means for imparting fluidity to the contaminated water and purified water inside the processing chamber, and a gas phase change of the contaminant contained in the contaminated water. It incorporates phase change means and gas-liquid separation means for separating the pollutant changed from the contaminated gas phase and purified water, and the gas-liquid separation means has a U-shaped drain port with the open port facing upward. A contaminated water purification apparatus installed so as to be located below the surface of the contaminated water below the gas-liquid separation surface. Contaminated water purification device inserted inside a vertical shaft, a water intake port for sucking contaminated water polluted with volatile pollutants, and wastewater from which purified water from which pollutants have been removed is discharged A flow means for providing fluidity to the contaminated water and purified water inside the treatment chamber, and having a sealed treatment chamber in which a mouth and an exhaust port for discharging the pollutant whose gas phase has been changed are separately opened; Gas-liquid separation with built-in gas-phase change means for changing the pollutants contained in the contaminated water to gas-phase and gas-liquid separation means for separating the pollutants changed from the contaminated water and purified water The means is equipped with a packer that closes the gap between the water inlet and the drainage port and the processing chamber and the vertical shaft, with the drainage port located below the water surface below the gas-liquid separation surface. Contaminated water purification device. The contaminated water purification apparatus according to any one of claims 1 to 3, wherein the fluidizing means and the gas phase changing means are combined with means for injecting bubbles into the contaminated water. In any of the contaminated water purification apparatus according to claim 1-4, wherein the contaminant purification device that purifies pollutants change gas phase is incorporated into the processing chamber, a gas contaminants is purified from the exhaust port A polluted water purification apparatus characterized by being discharged. In any of the contaminated water purification apparatus according to claim 1 to 5, wherein contaminated water purification apparatus characterized by the flow means and the gas phase changing means and the gas-liquid separating means is connected by a pipe. 7. The contaminated water purification apparatus according to claim 1, wherein the treatment chamber is formed in a cylindrical shape, an exhaust port is opened near the upper end portion of the treatment chamber, a water suction port is opened near the lower end portion, and drainage is performed in the middle portion. A polluted water purifier having a mouth open. The entire contaminated water purification apparatus according to claim 7 is inserted and installed in a vertical shaft excavated in the ground, and the contaminated water is sucked from the lower side of the vertical shaft and the purified water is not returned to the ground to return to the inside from the vertical shaft. A polluted water purification method characterized in that it returns to form a circulatory system and releases or collects only the pollutant whose gas phase has been changed or the gas from which the pollutant has been purified. The entire contaminated water purification apparatus according to claim 1 is installed in a suspended state on the surface of a lake or a pool of contaminated water, purified by inhaling contaminated water from below the contaminated water, and drained and circulated shallowly above the contaminated water. A polluted water purification method characterized in that a pollutant whose phase has been changed or a gas from which a pollutant has been purified is discharged onto the water surface.

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