KR100493636B1 - A direct water purifying method and apparatus using depth plant pressure floation in the sea, lakes and rivers - Google Patents

Abstract

end. The technical field to which the invention described in the claims belongs.

The present invention relates to a direct water purification method and apparatus for deep seas, lakes, rivers, etc. using a large depth pressurization method, and in particular, it is possible to manufacture pressurized water at a low energy cost and at the same time reduce the treatment time. The feature is that it can be made.

I. The technical problem to be solved by the invention.

Conventionally, the water purification method using the pressure flotation method uses expensive water for mixing pressurized water by mixing water and air in a high pressure tank maintained at a high pressure of water pressure and dissolving the air in a supersaturated state. There was a problem of high energy costs.

Particularly in the deep water depth, as the microbubble rises, the size decreases and the floating speed slows down, it takes not only long processing time but also the increase of the solubility of the air and the amount of pressurized water to be taken into account. Is further increased.

All. Summary of Solution of the Invention

The present invention injects the pressurized water prepared by mixing water and air at a low pressure to the depth deep through the deep down pipe and injects a large amount of pressurized water in a short time by the high pressure effect formed by the water pressure, By spraying the spray water in multiple stages according to the depth of the water from the inside or the outside, it is possible to minimize the cost of direct water purification by on-site pressurization method by preventing bubble dissolution and increasing the rate of bubble rise in the deep water. In addition to this, the treatment time can be shortened and efficient water purification can be performed in deep water.

la. Important use of the invention.

Water purification at depth from the sea, appeal, river.

Description

Direct water purifying method and apparatus using depth plant pressure floation in the sea, lakes and rivers}

The present invention relates to a direct water purification method and apparatus for deep seas, lakes, rivers, etc. using a large-depth pressurized floatation method, and deeply pressurized water mixed with water and air at a lower pressure than a conventional pressurized floatation method. It is possible to manufacture a large amount of pressurized water at a low energy cost through the pressure formed by the water pressure through the pipe to reduce the water purification cost than the conventional pressurization buoyancy method.

As well as the conventional water purification method by the on-site pressurization flotation method, the fine bubbles generated when mixing the air in a high pressure tank of water pressure and spraying the pressurized water dissolved in the supersaturated state into the contaminated water adhere to the contaminants. As a method of removing by floating on the water along with the contaminants, there was a problem that the high cost of high-pressure pumps, high-pressure tanks, high-pressure air compressors and energy costs to maintain high pressure in the pressurized water manufacturing process.

In addition, microbubbles should be maintained at the proper size to effectively attach to contaminants and maintain proper floating speed.However, microbubbles generated during the injection of pressurized water in water become smaller as they are injected deeper from the surface of the water. As the floating speed is very slow, the work efficiency is extremely low, and the water purification effect using the field press flotation method in the depth of water is actually very difficult.

That is, the pressure at the depth Dm becomes (1 + D / 10) air pressure, so that the solubility of air increases by (1 + D / 10) times than at the surface layer, while the bubble size is 1 / (1 + D / 10). Because it decreases.

For example, when spraying at a depth of 50m, even if the concentration of dissolved air (dissolved oxygen and dissolved nitrogen) at that point is saturated, only 1/6 of the bubbles injected from the surface layer is very slow. Will be.

In addition, in the deep part of the contaminated water, there is little dissolved oxygen and remains anaerobic, so that most of the micro bubbles formed during the spraying of the river water are dissolved in water, which not only reduces the size of the bubble but also increases the gas solubility due to the low temperature. Therefore, if you maintain an appropriate A / S (Air PER Solid Patio), because much air and pressurized water must be supplied, there is a problem in that energy costs are high and work efficiency is also lowered.

Therefore, the present invention has been made in order to solve the above-mentioned conventional problems, the object of the present invention is to minimize the cost required for the direct water purification work by on-site pressurized flotation industry and at the same time to shorten the processing time deep It is intended to enable efficient water purification in Korea.

As a water purification method for this purpose, the pressurized water prepared by mixing water and air at low pressure can be injected into the depth through the deep down pipe, and a large amount of pressurized water can be injected in a short time by the high pressure effect formed by the water pressure. The injection water is injected into the multi-stage according to the depth of the water from the inside or the outside of the deep down pipe to prevent bubble dissolution and increase the rate of bubble rise in the deep water.

It is a method for effectively purifying water quality by using a pressurized flotation method in a deep sea, an appeal, a river, etc. of the present invention.

Hereinafter, the present invention will be described in more detail with reference to the following examples.

First, FIG. 1 illustrates an embodiment of the present invention, in which a deep down pipe 10 is installed underwater from the ground surface of a water to be treated, and the diameter of the deep down pipe 10 is changed according to the depth of water. Proliferation expansion type pressurized water inlet tube 20 is installed to inject pressurized water 1 prepared by mixing water, air, and chemicals at a lower pressure than in a normal pressurization method, and an outer peripheral surface of the pressurized water inlet tube 20 According to the depth of the water injection nozzle injection nozzle 31 is installed in a multi-stage injection water injection pipe 30 is installed so that the injection water (2) is injected to the inside of the deep down pipe (10) using a pressurized buoyancy method Water purification is to be done.

At this time, the reason for forming the pressurized water inlet tube 20 into the expansion type according to the depth is that the disturbance action of the pressurized water according to the pressure change at the point where the diameter of the pipe is changed, so that the air dissolved in the water is easily generated as bubbles. This is because even in deep water, a large amount of bubbles can be generated at a low energy cost.

Moreover, it is easy to give functional groups, such as an electric charge, hydrophilicity, hydrophobicity, and aggregation reaction, to the bubble by a disturbing action.

In addition, the reason why the spray water injection nozzles 31 are installed in multiple stages on the outer circumferential surface of the pressurized water injection unit 11 is that the pressurized water is exposed in the water by the rising airflow of the sprayed water sprayed through the spray water injection nozzles 31. This is because the processing time can be shortened by increasing the floating speed of the generated microbubbles.

In addition, when the rising speed of the bubble is slow, the fine bubbles are converted into the air bubble as the pressure changes when it rises on the water surface, and the adhesion phenomenon with the aggregates is broken, resulting in a decrease in the treatment efficiency. This is because it can prevent the fall of treatment efficiency by floating above the water surface.

At this time, the wounded to the surface of the water is sucked by a separate suction device 40 provided to dehydrate by the dehydration device 50 is removed, it is a conventional method of treatment of the wound in the buoyancy method, pressurized water (1) The compressed air supplied from the compressor (60) and the medicine supplied from the chemical tank (60) is included to enable the coagulation reaction by the chemical and the injection of oxygen by the compressed air, of course.

In addition, the water used for the pressurized water 1 and the injection water 2 uses the water of a treated water area.

Figure 2 shows another embodiment of the present invention, the injection water injection pipe 30 is installed on the outside of the deep down pipe 10, the water quality by the pressure buoyancy method from the outside of the deep down pipe 10 In this way, the purification is made, the pressurized water 1 injected to the deep portion through the pressurized water injection pipe 20 is raised to the outside of the deep down pipe 10 is installed in multiple stages injection water injection pipe 30 Contact with the injection water (2) generated through the).

In this method, the injection water injection nozzle 31 takes into consideration that the fine bubbles generated by the pressurized water 10 rises as they rise to the water surface, and diffuses to a large area of the treated water as they rise to the water surface. It is preferable to form a wider radius as it goes up.

Figure 3 shows a third embodiment of the present invention, a plurality of the pressurized water inlet pipe 20 can be formed in the interior of the deep down pipe 10 can be formed in a modular form, this manner is wide It is a method that can be easily applied when treating treated water at once.

Therefore, the present invention configured as described above is a large amount of pressurization by the high pressure effect formed by the water pressure by injecting the pressurized water (1) prepared by mixing water and air at a low pressure to the depth deep through the deep down pipe (10) The water can be injected in a short time, and the injection water injection pipe 20 in which the injection water injection nozzle 31 is formed in multiple stages is installed inside or outside the deep down pipe 10 according to the depth of the water. It is possible to prevent bubble dissolution and increase the rate of bubble rise in the deep water by (2).

According to the present invention, it is possible to drastically reduce the energy cost required for injection during pressurization during the water purification work by the conventional on-site pressurization method and at the same time increase the rate of rise of the microbubbles generated to shorten the treatment time and increase the depth. Efficient water purification will be possible here.

1 is a process chart according to an embodiment of the present invention.

Figure 2 is a process chart showing another embodiment of the present invention.

3 is a process flowchart showing a third embodiment of the present invention.

Explanation of symbols on the main parts of the drawing

1: pressurized water 2: sprayed water

10: deep deep pipe 20: pressurized water injection pipe

30: injection water injection pipe 40: suction device

50: dehydration device 60: chemical tank

Claims (3)

The deep down pipe 10 is installed in the water from the ground surface of the water to be treated, and the proliferation expansion type pressurized water inlet pipe 20 is installed inside the deep down pipe 10 to pressurize at a lower pressure than in the normal pressure flotation method. Water (1) is injected into the outer peripheral surface of the pressurized water injection pipe (20) and the injection water injection nozzle (31) is installed in multiple stages according to the depth of the water, the injection water injection pipe (30) is installed and the injection water (2) is injected As a result, the deep bubble pressurization method is characterized in that the fine water generated from the pressurized water (1) and the injection water (2) in the deep down pipe (10) is raised to achieve water purification using the pressurization buoyancy method. Direct water purification method in deep ocean, lake and river. The deep down pipe 10 is installed in the water from the ground surface of the water to be treated, and the proliferation expansion type pressurized water inlet pipe 20 is installed inside the deep down pipe 10 to pressurize at a lower pressure than in the normal pressure flotation method. By injecting water (1), the injection water injection pipe (30) provided with the injection water injection nozzle (31) in multiple stages in accordance with the water depth on the outer side of the deep down pipe (10) to inject the injection water (2) , Pressurized water buoyancy method characterized in that the water quality is purified by the pressure buoyancy method as the pressurized water (1) is discharged to the outside of the deep down pipe (10) is raised and the injection water (2) is raised Direct water purification method in deep ocean, lake and river using The method of claim 1, wherein a plurality of the pressurized water injection pipes (20) are installed and formed in a modular form.