KR20230122215A - Portable polluted water treatment device capable of supplying high-efficiency dissolved oxygen - Google Patents

Abstract

The present invention is easy to install and maintain, saves energy and reduces installation costs, and is compactly configured to provide high-efficiency dissolved oxygen. It is about a good mobile device.
The present invention, the flow tank into which the contaminated water is introduced, the first sponge layer is installed on the top; A main pressurized aerobic tank connected to one side of the flow tank through a first pipe, supplied with high-pressure contaminated water from the flow tank by pumping, and generating treated water by oxidizing and decomposing the contaminated water as microorganisms contained therein are adsorbed to the contaminated water; a main ejector installed in the first pipe, mixing air introduced from the outside with contaminated water passing through the first pipe, and supplying the mixture to the main pressurized aerobic tank; A solid-liquid separation tank that is connected to one side of the main pressurized aerobic tank through a second pipe, receives treated water from the main pressurized aerobic tank, separates it into liquid components and sludge, discharges the liquid components, and has a second sponge layer installed on the top. Including;, but the solid-liquid separation tank and the flow tank are connected and installed through the third pipe, and the solid-liquid separation tank collects the sludge floating to the lower part of the second sponge layer and returns it to the flow tank while passing through the third pipe. do.

Description

Portable contaminated water treatment device capable of supplying high-efficiency dissolved oxygen

The present invention relates to a mobile contaminated water treatment device capable of supplying dissolved oxygen with high efficiency.

Devices that treat high-concentration polluted water, including sewage and livestock wastewater, or low-pollution polluted water from golf course hazards, fountains, swimming pools, lakes, etc. To this end, chemicals, mixers, and air supply means (blowers, diffusers) that consume a large space and a lot of energy and require a lot of facility and operating costs are used.

In practice, biological treatment methods that are decomposed and removed by microorganisms are widely used in high-concentration contaminated water treatment devices to remove organic matter and suspended matter, and the most basic treatment among them is called the standard activated sludge method.

The standard activated sludge method was developed in England in 1913 and has contributed the most to the treatment of contaminated water containing organic matter. Today, various modifications are being studied as an aid to biological treatment methods. In the standard activated sludge method, suspended solids are removed in the primary sedimentation tank, soluble organic matter is decomposed by microorganisms in the aerobic tank, and some are synthesized into microbial cells (soluble substances → converted into insoluble substances, cells), precipitated in the secondary sedimentation tank, and then removed. As a method, it has the advantage of high organic matter removal efficiency and easy operation due to the established operation technology with a large number of application results as the most basic method, but insufficient removal of nitrogen and phosphorus that cause red tide and green algae.

To compensate for the disadvantages of the standard activated sludge method, the A/O (Anaerobic (anoxic)-Oxic) method and the A2/0 (Anaerobic-Anoxic-Oxic) method have been improved.

In the case of the A/O (Anaerobic (anoxic)-Oxic) method, it was developed by Air Products & Chemicals in the US. An anaerobic or anoxic tank was added in front. At this time, in the anaerobic tank, the sludge returned from the secondary sedimentation tank and the influent are mixed together, and organic matter absorption by microorganisms occurs, ATP → ADP to obtain energy, and phosphate phosphorus (PO4-P) is released. When phosphorus is released, BOD is metabolized in the aerobic tank, which is the next step, and at the same time, a rapid absorption occurs in an amount more than the amount required for phosphorus metabolism, and phosphorus is absorbed 3 to 4 times the amount of phosphorus released. This phenomenon is called luxury uptake, and therefore phosphorus removal is achieved by discarding the surplus sludge produced, and the phosphorus content in the sludge is 4 to 6% in dry weight, compared to 2 to 3% of the standard activated sludge method. It will contain the phosphorus of the ship. For this reason, there is an advantage in that organic matter and phosphorus removal efficiency is high, but there is a disadvantage in that nitrogen removal efficiency is low.

The A2/0 (Anaerobic-Anoxic-Oxic) method compensates for these disadvantages. The A2/0 method is to solve the low nitrogen removal efficiency in the A/O method. An anoxic tank is installed between an anaerobic tank and an aerobic tank, the aerobic tank is operated so that nitrification is possible, and the influent nitrified in the aerobic tank is returned as return water. It is returned to an anoxic tank to remove nitrogen. However, air necessary for the activity of aerobic microorganisms in the aerobic tank, that is, oxygen, must be supplied to the aerobic tank. There is a problem in that air is not properly supplied into the aerobic tank depending on influent conditions.

In particular, in the biological treatment method for treating organic matter, suspended matter, nitrogen and phosphorus, etc., oxidation of pollutants by supplying dissolved oxygen is a top priority task. Depending on the concentration and type of pollutants, it can be divided into polluted water that is purified by simple treatment by increasing the concentration of dissolved oxygen, and polluted water that requires post-treatment. There is a problem of having to provide a supply means.

Therefore, it is possible to reduce the degree of contamination by increasing the content of dissolved oxygen in the contaminated water, and to protect the aquatic ecosystem more quickly by using less energy and operating costs and by saving labor costs. There is an urgent need to develop a polluted water treatment device that can be installed at the right place in the city.

Domestic Registered Patent Publication No. 10-2202456, registered on 2021.01.07.

The present invention was invented to solve the above problems, and not only can increase the dissolved oxygen content by supplying dissolved oxygen abundantly, but also is a portable contaminated water treatment that can be easily moved and installed in a place where it is needed because it is compact. Providing a device is a technical challenge.

In order to solve the above technical problem, the present invention is a flow tank into which contaminated water is introduced and a first sponge layer is installed thereon; It is installed connected to one side of the flow tank through a first pipe, receives the contaminated water in the flow tank at high pressure by pumping, and pressurizes the main pressure to generate treated water by oxidizing and decomposing the contaminated water as the microorganisms contained therein are adsorbed to the contaminated water. aerobic tank; a main ejector installed in the first pipe, mixing air introduced from the outside with contaminated water passing through the first pipe, and supplying the mixture to the main pressurized aerobic tank; And it is installed connected to one side of the main pressurized aerobic tank through a second pipe, receives treated water from the main pressurized aerobic tank, separates it into a liquid component and sludge, and then discharges the liquid component, and a second sponge layer is installed on the top A solid-liquid separation tank; wherein the solid-liquid separation tank and the flow tank are connected and installed through a third pipe, and the solid-liquid separation tank collects the sludge floating to the bottom of the second sponge layer and passes through the third pipe It provides a mobile contaminated water treatment device capable of supplying dissolved oxygen with high efficiency, characterized in that while recovering it to the flow tank.

It is characterized in that an auxiliary pressurized aerobic tank is installed in the third pipe to receive the sludge of the solid-liquid separation tank at high pressure by pumping and to supply air to microorganisms accommodated therein.

It is characterized in that an aberration wheel rotated by the inflow of contaminated water is installed inside the main pressurized aerobic tank.

The main pressurized aerobic tank is characterized in that a plurality of diaphragms are installed horizontally in a zigzag manner spaced apart from each other in the vertical direction, and a plurality of air balls of different sizes and shapes are protruded from the upper and lower parts of the diaphragm. .

In the second sponge layer, a pair of sponge members are divided in a horizontal direction, and the third pipe is installed between the pair of sponge members.

The contaminated water treatment apparatus according to the present invention by means of solving the above problems can be installed in a compact and mobile type, so that the sludge separated from the treated water in the solid-liquid separation tank can be continuously recovered to the flow tank and operated continuously, Dissolved oxygen necessary for treating contaminated water can be controlled or abundantly supplied through the dual structure of the main pressurized aerobic tank and the auxiliary pressurized aerobic tank, thereby improving the efficiency of the contaminated water treatment.

Depending on the high and low concentrations of pollutants, sludge may not be generated or the amount of sludge generated may be greatly different. In particular, among livestock manure, pig manure is a high-concentration contaminant. In the past, the biological treatment method using a large-capacity aeration tank compared to a small volume of contaminants was all, so the cost-effectiveness was too low. Even if it is compact in scale, the amount of dissolved air can be increased, which can efficiently oxidize organic matter and suspended matter in pollutants, as well as easily remove suspended matter, making a significant contribution to the pretreatment field of livestock manure treatment. there is

1 is a schematic view showing the configuration of a contaminated water treatment apparatus according to the present invention.
Figure 2 is an exemplary view showing a flow tank according to the present invention.
3 is an exemplary view showing a main pressurized aerobic tank according to the present invention as viewed from the outside.
4 is an exemplary view showing the inside of a main pressurized aerobic tank according to the present invention.
5 is an exemplary view showing a solid-liquid separation tank according to the present invention.
Figure 6 is an exemplary view showing a state viewed from the top of the second sponge layer of the solid-liquid separation tank according to the present invention.
Figure 7 is an exemplary view showing a state viewed from the side of the second sponge layer of the solid-liquid separation tank according to the present invention.

Hereinafter, the present invention will be described in detail.

The present invention relates to a mobile contaminated water treatment device capable of supplying dissolved oxygen with high efficiency. In relation to this, FIG. 1 is a schematic diagram showing the configuration of a contaminated water treatment device according to the present invention. As shown in FIG. 1, the contaminated water treatment device of the present invention has a first sponge layer 110 on top of which contaminated water flows It is connected to the installed flow tank 100 and one side of the flow tank 100 through the first pipe 20, and receives the contaminated water from the flow tank 100 by pumping to maintain high pressure inside. The main pressurized aerobic tank 200, in which the microorganisms housed inside are adsorbed to the contaminated water and the contaminated water is oxidized and decomposed to generate treated water, and the main pressurized aerobic tank 200 installed in the first pipe 20 and mixing the air introduced from the outside with the contaminated water The main ejector 300 supplied to the pressurized aerobic tank 200 is connected to one side of the main pressurized aerobic tank 200 through the second pipe 30, and the liquid component is supplied with treated water from the main pressurized aerobic tank 200 It is composed of a solid-liquid separation tank 400 having a second sponge layer 420 installed thereon, an auxiliary pressurized aerobic tank 500, and an auxiliary ejector 600 to discharge liquid components after separating into sludge and sludge. will be sent back

In particular, the solid-liquid separation tank 400 and the flow tank 100 are connected and installed through the third pipe 40, and sludge floating to the bottom of the second sponge layer 420 in the solid-liquid separation tank 400 is collected and removed. 3 Since it is possible to reprocess by returning to the flow tank 100 while passing through the pipe 40, continuous operation can be performed.

Accordingly, through the installation of a pressurized aerobic tank having a dual structure of the main pressurized aerobic tank 200 and the auxiliary pressurized aerobic tank 500, the dissolved oxygen content can be increased by adjusting the air supply amount according to the degree of contamination of the contaminated water and supplying the dissolved oxygen abundantly. In addition, it is characterized in that it is compact and can be easily moved and installed to a required place.

The flow tank 100 of the present invention has a configuration in which contaminated water flows in and a first sponge layer 110 is installed on the top.

2 shows an exemplary view of a flow tank 100 according to the present invention. First, as shown in FIG. 2 , an inlet pipe 10 through which contaminated water flows is installed on the sidewall of the flow tank 100 . The inflow pipe 10 includes a first inflow passage 11 formed in a horizontal direction by penetrating the wall of the flow tank 100 horizontally, and a second inflow passage vertically bent downward at an end of the first inflow passage 11. (12) and a third inflow passage 13 horizontally bent in the inside direction of the flow tank 100 at the end of the second inflow passage 12, the cross section can be formed into shapes.

The solid-liquid separation tank 400 and the flow tank 100 are connected to face the inlet pipe 10 in the opposite direction to the inlet pipe 10 of the flow tank 100, and the solid-liquid separation tank 400 treats water A third pipe 40 through which the separated sludge is returned to the flow tank 100 via the auxiliary pressurized aerobic tank 500 is installed. The third pipe 40 horizontally penetrates the wall of the flow tank 100 at a position facing the inlet pipe 10 to form a horizontal first conveyance passage 41 and a first conveyance passage 41 It consists of a second conveyance passage 42 bent vertically downward at the end and a third conveyance passage 43 horizontally bent toward the inside of the flow tank 100 at the end of the second conveyance passage 42, this can be formed into shapes.

Inside the flow tank 100, it is preferable that the third inflow passage 13 of the inflow pipe 10 and the third return passage 43 of the third pipe 40 are spaced apart at regular intervals, and the third inflow passage Contaminated water may collide with the rotational bulkhead 120 at positions facing each other between the (13) and the third conveyance passage 43 so as to be rotatably installed. The rotating bulkhead 120 is rotated clockwise or counterclockwise so that the contaminated water flowing into the flow tank 100 from the inlet pipe 10 and the inside of the flow tank 100 from the third pipe 40 are transported. By increasing the mixing rate with the inflowing water, that is, the sludge, the treatment efficiency can be increased.

A head 121 may be installed on the upper surface of the partition wall 120 for rotation, and the head 121 protects the partition wall 120 for rotation and forms a dead area where sludge is deposited on the bottom surface of the flow tank 100 ( dead space) can be prevented.

At the bottom of the inside of the flow tank 100, a first pipe 20 is installed to discharge the contaminated water and sludge to the main pressurized aerobic tank 200 after sufficient mixing, and this first pipe 20 is installed in the main pressurized aerobic tank 200 ) can be associated with

In particular, the first sponge layer 110 provided on the top of the flow tank 100 removes air bubbles caused by mixing of the contaminated water supplied to the flow tank 100 and the return water transported through the third pipe 40. Not only can you do it, but you can also suppress the phenomenon of foaming.

The main pressurized aerobic tank 200 of the present invention is an improvement of the existing biological treatment method in which the capacity is reduced by increasing the oxygen dissolved rate through the reaction of microbubbles in order to replace the existing general aerobic tank, and on one side of the flow tank 100, a first It is connected and installed through the pipe 20, and the contaminated water of the flow tank 100 is supplied by pumping to maintain the high pressure inside, but as the microorganisms accommodated inside are adsorbed to the contaminated water, the contaminated water is oxidized and decomposed to increase the concentration of the contaminated water. It is a configuration that generates treated water by adjusting the pressure variablely according to the pressure.

Prior to the description, the main pressurized aerobic tank 200 may variably adjust the operating pressure according to the contamination concentration of the raw water contaminated water.

3 shows an exemplary view of the main pressurized aerobic tank 200 according to the present invention viewed from the outside, and FIG. 4 shows the inside of the main pressurized aerobic tank 200 according to the present invention as an example view.

3 and 4, the main pressurized aerobic tank 200 receives the contaminated water contained in the flow tank 100 through the main high-pressure pump 310 installed in the first pipe 20, and the inside becomes high-pressure. . At this time, outside air is introduced through the main ejector 300 installed on the first pipe 20 between the main high-pressure pump 310 and the main pressurized aerobic tank 200 to mix with the contaminated water. Therefore, the main pressurized aerobic tank 200 is made by mixing the contaminated water being transferred from the flow tank 100 to the first pipe 20 and the outside air supplied to the first pipe 20 through the main ejector 300. You will be provided with mixed water.

In the main pressurized aerobic tank 200, the dissolved air is increased by the outside air flowing into the first pipe 20 through the main ejector 300, and the oxidation and decomposition efficiency of the contaminated water is increased by the increased amount of dissolved oxygen. It is possible to increase the oxidation efficiency of organic matter.

Inside the main pressurized aerobic tank 200, a water wheel 210 rotated by the inflow of contaminated water is installed, so that the contaminated water flowing from the flow tank 100 through the first pipe 20 and the existing contaminated water increase the mixing of Rotating shaft to facilitate mixing of polluted water containing external air and microorganisms at a position adjacent to the inside of the main pressurized aerobic tank 200 connected to the first pipe 20, more specifically, the inlet of the main pressurized aerobic tank 200 ( A water turbine 210 rotating around 211 is installed. However, the rotating shaft 211 may be rotatably installed by a bearing (not shown) mounted on an inner sidewall of the main pressurized aerobic tank 200 .

As the aberration blades 212 rotate inside the main pressurized aerobic tank 200, not only the remixing rate of external air and polluted water can be increased by the rotational force of the aberration blades 212, but also the mixing rate with microorganisms is also increased. As such, since the aberration 210 is installed inside the main pressurized aerobic tank 200, the efficiency of treating contaminated water can be improved even in a compact and small-scale operation.

In addition, a plurality of diaphragms 220 are installed horizontally in a zigzag manner spaced apart in the vertical direction on the inside of the main pressurized aerobic tank 200, specifically, on the top of the water wheel 210, so that the newly introduced contaminated water and the existing contaminated water are mixed. rate can be increased. The diaphragm 220 is installed in a fixed state on the inner wall of the main pressurized aerobic tank 200. Between the inner wall of the main pressurized aerobic tank 200 and the diaphragm 220, the diaphragm 220 slopes upward toward the inside of the main pressurized aerobic tank 200. A photo inclined diaphragm 221 may be installed.

Air balls 230 having different sizes and shapes are installed on the upper and lower portions of the diaphragm 220 to increase the dissolution rate of the air supplied into the main pressurized aerobic tank 200 and increase the mixing rate of contaminated water and microorganisms. there is. That is, the air ball 230 disperses the external air sequentially supplied to the first pipe 20 and the main pressurized aerobic tank 200 through the main ejector 300 into countless fine air particles.

In the main pressurized aerobic tank 200, a primary hydraulic retention time (HRT) of mixed water in which contaminated water and external air are mixed may be 30 seconds to 5 minutes. Then, the secondary hydraulic retention time (HRT: hydraulic retention time) may be 10 seconds to 1 minute. As in the present invention, even if the device is configured on a compact and small scale, there is an advantage in that the hydraulic residence time can be controlled short. In addition, through the main pressurized aerobic tank 200, it is not necessary to use an air supply means (blower, diffuser) that consumes a lot of energy, and economic performance such as space saving by reducing the size or capacity of the main pressurized aerobic tank 200 to which the biological treatment method is applied The system can be simplified.

In such a main pressurized aerobic tank 200, since the amount of air mixed with the contaminated water can be adjusted, oxidative decomposition of organic substances contained in the contaminated water and suspended matter can be removed, and odor can be appropriately controlled to treat contaminated water. efficiency can be increased.

The main ejector 300 of the present invention is installed in the first pipe 20 and has a configuration in which air introduced from the outside is mixed with contaminated water and supplied to the main pressurized aerobic tank 200 .

The main ejector 300 is installed on the first pipe 20 in the form of a Venturi pipe according to Bernoulli's principle to control the amount of air supplied to the contaminated water flowing into the main pressurized aerobic tank 200 while passing through the first pipe 20. can

In other words, the main ejector 300 made of a Venturi pipe is installed between the inlet pump of the flow tank 100 and the main pressurized aerobic tank 200, and transfers the contaminated water accommodated in the flow tank 100 to the first pipe ( 20) is installed. At this time, between the flow tank 100 and the main ejector 300 on the first pipe 20, a main high-pressure pump 310 capable of supplying the contaminated water in the flow tank 100 to the main pressurized aerobic tank 200 at high pressure is installed. do.

The main ejector 300 is a part where the pressure is lowered while the contaminated water is transferred from the flow tank 100 to the main pressurized aerobic tank 200 using the main high pressure pump 310 installed on the first pipe 20, that is, Outside air is absorbed between the main high-pressure pump 310 and the main pressurized aerobic tank 200 and supplied to the main pressurized aerobic tank 200 so that it can be mixed with the contaminated water.

However, the size and air volume of the main ejector 300 may be variably adjusted according to the contamination concentration of raw water.

The solid-liquid separation tank 400 of the present invention replaces the existing sedimentation tank and stores treated water formed by oxidation and decomposition of contaminated water by microorganisms in the main pressurized aerobic tank 200, and the second side of the main pressurized aerobic tank 200 It is connected and installed through the pipe 30, receives treated water from the main pressurized aerobic tank 200, separates it into liquid components and sludge, and discharges the treated water corresponding to the liquid component to the next step, and the second sponge layer on the top (420) is the configuration to be installed.

5 shows an exemplary view of a solid-liquid separation tank 400 according to the present invention. Referring to FIG. 5, the space in which the treated water flows into the solid-liquid separation tank 400 through the second pipe 30 and is stored, and the liquid component separated from the sludge after the solid-liquid separation of the treated water in the solid-liquid separation tank 400 Since the partition wall 410 that partitions the space where the treated phosphorus water is discharged is installed vertically, the solid-liquid separation zone 411 and the treated water discharge zone 412 are separated with the partition wall 410 at the center.

And as shown in FIG. 5, the second pipe 30 connecting the main pressurized aerobic tank 200 and the solid-liquid separation tank 400 is disposed in the solid-liquid separation zone 411, and the second pipe 30 is solid-liquid. A first connection passage 31 formed in a horizontal direction on the sidewall of the separation tank 400, a second connection passage 32 vertically bent downward at an end of the first connection passage 31, and a second connection passage 32 It is composed of a third connection passage 33 horizontally bent in the inside direction of the solid-liquid separation tank 400 at the end of the passage 32, and the cross section is can be formed into shapes.

The third connection passage 33 is formed in a plate shape having a larger area than a pipe shape to increase the upstream discharge of treated water in which contaminated water has been treated. To this end, the upper surface of the third connection passage 33 discharges contaminated water. A discharge hole (not shown) is formed through. Therefore, an upflow treatment method in which contaminated water transported from the main pressurized aerobic tank 200 through the second pipe 30 is discharged through the discharge hole of the third connection passage 33 and moves from the bottom to the top of the solid-liquid separation tank 400. It is done. The discharge hole of the third connection passage 33 is composed of a plurality of pipes horizontally at a height adjacent to the bottom surface of the solid-liquid separation tank 400, reducing the flow rate and forming an upward flow in a wide range, so that a faster rising effect is expected. can

In addition, the third connection passage 33 is located in the lower part of the solid-liquid separation tank 400, and the second sponge layer 420 is located in the upper part of the solid-liquid separation tank 400, which is relatively higher than the position of the third connection passage 33. , the hydraulic retention time (HRT) is reduced to 10 to 30 minutes, thereby increasing the efficiency of treating contaminated water.

After the contaminated water is treated inside the solid-liquid separation tank 400, the treated water separated from the sludge is discharged to the outside through the discharge pipe 60 installed in the opposite direction of the second pipe 30. To this end, a treated water transport pipe 50 communicating between the solid-liquid separation zone 411 and the treated water discharge zone 412 is installed around the partition wall 410 at the lower part of the partition wall 410 .

The treated water transfer pipe 50 is installed through the partition wall 410 in the horizontal direction and is bent vertically upward at the end of the first transfer passage 51 and the treated water discharge area ( 412) may be configured as a second transfer passage 52. In the case of the first transfer passage 51, it is installed at a position relatively lower than the third connection passage 33 so that contaminated water is discharged from the discharge hole of the third connection passage 33 in an upward flow method.

The first transfer passage 51 and the second transfer passage 52 are composed of a plurality of pipes to reduce the flow rate and facilitate discharge. In addition, the height of the upper end of the second transfer passage 52 and the height of the discharge pipe 60 may be installed at a height similar to that of the third pipe 40 connected to the solid-liquid separation tank 400, and if necessary, the second transfer pipe 60 The heights of the passage 52 and the discharge pipe 60 can be adjusted, and the amount of discharge can be controlled by adjusting the valve.

The end of the second transfer passage 52 is disposed at the end of the solid-liquid separation tank 400 so that the treated water separated from the sludge in the solid-liquid separation zone 411 is easily transferred to the discharge pipe 60 via the treated water discharge zone 412. It is preferable to be installed in a position adjacent to the discharge pipe 60 installed on the side wall.

6 is an exemplary view showing a view from the top of the second sponge layer 420 according to the present invention, referring to FIG. 6, the second sponge layer 420 is a pair of sponge members 421 in the horizontal direction It is divided, and the third pipe 40 is arranged or installed to pass between the pair of sponge members 421 . At this time, a plurality of conveying holes 44 are formed through the third pipe 40, and the sludge collected in the lower portion of the second sponge layer 420 is injected and recovered into the flow tank 100.

Like the first sponge layer 110, the second sponge layer 420 can remove bubbles contained in the treated water inside the solid-liquid separation tank 400 and suppress the generation of bubbles. That is, while the contaminated water contacts the second sponge layer 420 installed on the upper side of the inside of the solid-liquid separation tank 400, the air containing bubbles is released to the outside, and the bubbles float to the upper part of the solid-liquid separation tank 400 and gather MLSS (mixed liquor suspended solids), which is a suspended material of the sludge, can be collected and recovered to the flow tank 100 through the third pipe 40 installed between the pair of sponge members 421, so the continuous process can be performed there is.

7 is an exemplary view showing a view from the side of the second sponge layer 420 according to the present invention. As shown in FIG. 7 , a pair of sponge members 421 are installed with a downward inclination toward the outer side around the third pipe 40 . The inclination angle may be in the range of 5 to 15°, which is to increase the efficiency of gathering the sludge separated from the treated water into the pair of sponge members 421.

As shown in FIG. 1, the auxiliary pressurized aerobic tank 500 of the present invention is installed on the third pipe 40, receives the sludge of the solid-liquid separation tank 400 by pumping, and maintains a high pressure inside, By re-supplying dissolved air to the microorganisms accommodated in, the sludge (or contaminated water) containing microorganisms can be decomposed by oxidation secondarily, and in particular, the pressure is variably adjusted according to the concentration of contamination of the sludge (or contaminated water). am.

The auxiliary pressurized aerobic tank 500 has the same internal structure as the main pressurized aerobic tank 200, but has a relatively smaller size than the main pressurized aerobic tank 200, and may be installed in plurality on the third pipe 40.

In the auxiliary pressurized aerobic tank 500, the dissolved air is increased by the external air flowing into the third pipe 40 through the auxiliary ejector 600, and oxidative decomposition of the sludge can be additionally performed by the increased amount of dissolved oxygen, As a result, the oxidation efficiency of pollutants such as organic matter and suspended matter can be increased through the installation of the double pressurized aerobic tank of the main pressurized aerobic tank 200 and the auxiliary pressurized aerobic tank 500.

The auxiliary ejector 600 of the present invention is installed in the third pipe 40 to increase the amount of dissolved oxygen, and mixes the air introduced from the outside with the sludge separated from the liquid component of the treated water in the solid-liquid separation tank 400 and supplied to the auxiliary pressurized aerobic tank 500.

The auxiliary ejector 600 is installed on the third pipe 40 in the form of a Venturi pipe according to Bernoulli's principle and can control the amount of air supplied to the sludge flowing into the auxiliary pressurized aerobic tank 500 while passing through the third pipe 40. there is.

That is, the auxiliary ejector 600 made of a Venturi pipe is connected and installed between the solid-liquid separation tank 400 and the auxiliary pressurized aerobic tank 500, and removes the sludge separated from the treated water in the solid-liquid separation tank 400 through the flow tank 100. It is installed in the third pipe 40 to convey to. At this time, between the solid-liquid separation tank 400 on the third pipe 40 and the auxiliary ejector 600, an auxiliary high-pressure pump 610 capable of pressurizing the sludge of the solid-liquid separation tank 400 and supplying the sludge to the auxiliary pressurized aerobic tank 500 is provided. installed

The auxiliary ejector 600 is a part where the pressure is lowered in the process of transporting the sludge from the solid-liquid separation tank 400 to the auxiliary pressurized aerobic tank 500 using the auxiliary high-pressure pump 610 installed on the third pipe 40, that is, , External air is absorbed between the auxiliary high-pressure pump 610 and the auxiliary pressurized aerobic tank 500 and supplied to the auxiliary pressurized aerobic tank 500 so that it can be mixed with the contaminated water.

In summary, the present invention treats contaminated water including a flow tank 100, a main pressurized aerobic tank 200, a main ejector 300, a solid-liquid separation tank 400, an auxiliary pressurized aerobic tank 500, and an auxiliary ejector 600. provide the device.

In particular, since the solid-liquid separation tank 400 and the flow tank 100 are connected and installed, sludge floating upward inside the solid-liquid separation tank 400 can be collected and recovered to the flow tank 100, so that continuous operation is possible Accordingly, even if the flow tank 100, the main pressurized aerobic tank 200, the main ejector 300, the solid-liquid separation tank 400, the auxiliary pressurized aerobic tank 500, and the auxiliary ejector 600 are configured compactly, the treatment efficiency of contaminated water is reduced. There are advantages to not being

In addition, in the past, the biological treatment method using a large-capacity aeration tank compared to a small-capacity pollutant was all, so the cost-effectiveness was too low. Since the amount of air can be controlled or increased, it is possible to efficiently oxidize organic matter in pollutants and to easily remove floating substances, so that not only polluted water with a low degree of pollution in golf course hedges, fountains, swimming pools, lakes, etc. It is expected to make a significant contribution to the field of treating high-concentration polluted water, including wastewater, livestock wastewater, and livestock manure.

The above description is merely an example of the technical idea of the present invention, and various modifications and variations can be made to those skilled in the art without departing from the essential characteristics of the present invention. Therefore, the embodiments disclosed in the present invention are not intended to limit the technical idea of the present invention, but are intended to explain, and the scope of the technical idea of the present invention is not limited by these embodiments. The protection scope of the present invention should be construed according to the claims, and all technical ideas within the scope equivalent thereto should be construed as being included in the scope of the present invention.

10: inlet pipe
11: first inflow passage
12: second inflow passage
13: 3rd inflow passage
20: first pipe
30: 2nd pipe
31: first connecting passage
32: second connecting passage
33: third connecting passage
40: 3rd pipe
41: first return passage
42: second return passage
43: third return passage
44: return hall
50: treated water transfer pipe
51: first transfer passage
52: second transfer passage
60: discharge pipe
100: flow tank
110: first sponge layer
120: bulkhead for rotation
121: cap
200: main pressurized aerobic tank
210: aberration
211: axis of rotation
212: Water turbine blades
220: fight
221: inclined diaphragm
230: Airball
300: main ejector
310: main high pressure pump
400: solid-liquid separation tank
410: compartment wall
411: solid-liquid separation zone
412: treated water discharge area
420: second sponge layer
421: sponge member
500: auxiliary pressurized aerobic tank
600: auxiliary ejector
610: auxiliary high pressure pump

Claims (5)

A flow tank into which contaminated water is introduced and a first sponge layer is installed thereon;
It is installed connected to one side of the flow tank through a first pipe, receives the contaminated water in the flow tank at high pressure by pumping, and pressurizes the main pressure to generate treated water by oxidizing and decomposing the contaminated water as the microorganisms contained therein are adsorbed to the contaminated water. aerobic tank;
a main ejector installed in the first pipe, mixing air introduced from the outside with contaminated water passing through the first pipe, and supplying the mixture to the main pressurized aerobic tank; and
It is connected and installed on one side of the main pressurized aerobic tank through a second pipe, receives treated water from the main pressurized aerobic tank, separates it into liquid components and sludge, and then discharges the liquid component, and a second sponge layer is installed on the top Including; solid-liquid separation tank,
The solid-liquid separation tank and the flow tank are connected and installed through a third pipe, and the solid-liquid separation tank collects the sludge floating to the lower part of the second sponge layer and returns it to the flow tank while passing through the third pipe. A mobile contaminated water treatment device capable of supplying high-efficiency dissolved oxygen. According to claim 1,
In the third pipe,
A mobile contaminated water treatment device capable of supplying high-efficiency dissolved oxygen, characterized in that an auxiliary pressurized aerobic tank is installed to receive sludge from the solid-liquid separation tank at high pressure by pumping and supply air to microorganisms accommodated therein. According to claim 1,
Inside the main pressurized aerobic tank,
A mobile contaminated water treatment device capable of supplying highly efficient dissolved oxygen, characterized in that an aberration wheel rotated by the inflow of contaminated water is installed. According to claim 1,
The main pressurized aerobic tank,
A plurality of diaphragms are installed horizontally in a zigzag manner spaced apart in the vertical direction inside,
A mobile contaminated water treatment device capable of supplying high-efficiency dissolved oxygen, characterized in that a plurality of air balls of different sizes and shapes are protruded from the upper and lower parts of the diaphragm. According to claim 1,
The second sponge layer,
A pair of sponge members are divided in the horizontal direction,
A mobile contaminated water treatment device capable of supplying dissolved oxygen with high efficiency, characterized in that the third pipe is installed between the pair of sponge members.