KR101682392B1 - Wastewater disposal equipment - Google Patents

Abstract

The present invention provides wastewater disposal equipment including: a degassing tank for supplying oxygen to wastewater delivered from a sump through a first fluid treatment device to degas a nitrogen component included in the wastewater; an activated sludge tank for supplying aerobic microorganisms and oxygen to treated water delivered from the degassing tank to decompose organic matter by the aerobic microorganisms; and a settling tank for coagulating and settling sludge included in the treated water delivered from the activated sludge tank, wherein the first fluid treatment device sprays air in the wastewater sucked from the degassing tank, changes the air into micro-bubbles in the wastewater, and supplies oxygen in the air to the wastewater, to degas the nitrogen component in the wastewater. Accordingly, oxygen in the air introduced through a first micro-bubble generation device is refined into the micro-bubbles in the wastewater to remarkably improve a contact area and a contact time between oxygen and the wastewater, so that reaction efficiency is increased to correspond to a wastewater disposal process.

Description

{Wastewater disposal equipment}

The present invention relates to a wastewater treatment facility, and more particularly, to a wastewater treatment facility that is simple in structure, can reduce facility and maintenance costs, is economical, and can improve wastewater treatment efficiency.

Generally, wastewater treatment facilities are divided into various methods depending on the type of treatment water and treatment purpose. Separation, aeration, floatation, deaeration, precipitation, oxidation, reduction and neutralization are used for each method. Such a wastewater treatment facility is carried out using the reaction of gas and liquid or solid and liquid, liquid and liquid.

In this process, for example, in the process of supplying the aerobic microorganisms and oxygen into the treated water containing the organic substance to cause decomposition of the organic matter by the microorganism, an aeration device is used for supplying oxygen necessary for feeding the microorganisms, It is necessary to adjust the concentration of oxygen by dissolving oxygen or pure oxygen in the air at high pressure in the treatment water to promote decomposition.

Further, in the case of the degassing apparatus, oxygen is supplied to the wastewater containing a high concentration of ammonia nitrogen or volatile organic substances, so that ammonia or volatile organic substances are deaerated and removed.

However, the conventional wastewater treatment plants using the above-described methods have appropriate reaction efficiencies in accordance with their respective purposes, but in reality, the reaction efficiency is low and the power ratio due to the extension of the operation time of the equipment is increased. , The solubility of oxygen is low even though high pressure compressed air or oxygen is directly injected into the liquid phase, and in the case of the degassing apparatus, since the reaction between air and the substance to be degassed is low, the degassing efficiency is low, In order to increase the investment cost and to degas ammonia nitrogen within a limited time, it is necessary to raise the temperature of the treated water to about 60 to 70 ° C. and to increase the heat and the cost of the chemicals to maintain the alkalinity of 12 to 13 .

Korean Patent No. 10-1571092

In the present invention, the external air is sucked in the incoming wastewater and the air is microfilled with the microbubbles, so that the contact area and the contact time between oxygen and wastewater in the air are greatly improved. By using this effect, The object of the present invention is to provide a low-cost and high-efficiency wastewater treatment facility capable of drastically reducing the processing cost by degassing volatile substances, odorous substances, refractory substances, etc. in a low temperature and in a short time, do.

According to an aspect of the present invention, there is provided a water treatment system comprising: a degassing vessel for supplying oxygen to wastewater taken in from a collecting tank through a first fluid treatment device to degas nitrogen components contained in the wastewater; An activated sludge tank for supplying aerobic microorganisms and oxygen to the aerobic microorganisms to decompose organic matter by the aerobic microorganisms and a sedimentation tank for agglomerating and precipitating sludge contained in the treated water carried in from the activated sludge tank, The fluid treatment apparatus includes a wastewater treatment unit for spraying air into the wastewater sucked from the deaeration tank and microbubbing the air in the wastewater to supply oxygen in the air into the wastewater to degas the nitrogen component in the wastewater Processing facilities.

According to another aspect of the present invention, there is provided a dehydrating apparatus comprising: a deaeration tank that supplies oxygen to wastewater carried in from a collection tank through a first fluid treatment device to allow nitrogen components contained in the wastewater to be deaerated; An activated sludge tank for supplying aerobic microorganisms and oxygen to the treated water brought in from the degassing tank to decompose organic matter by the aerobic microorganisms and a sedimentation tank for flocculating and precipitating the sludge contained in the treated water brought in from the activated sludge tank Wherein the first fluid treatment device is configured to inject air into the wastewater into the deodorization tank and microbubble the air in the wastewater to supply oxygen in the air into the wastewater, And the second fluid treatment device is configured to remove the treatment water from the activated sludge tank The injection of air, and to screen the microbubbles of air in the process may provide a waste water treatment plant for supplying oxygen in the air into a number of the processing.

The fluid treatment facility using micro bubbles according to the present invention provides the following effects.

First, the microbubbles of oxygen in the air introduced through the microbubble generator are refined into microbubbles in the wastewater, thereby significantly improving the contact area and contact time of oxygen and wastewater. Thus, semiconductor wastewater, high concentration nitrogen-containing industrial wastewater, , It can degrade ammonia toxicity by deaerating ammonia nitrogen, volatile substances, refractory substances, odor substances, etc., and thereby greatly improve the biological treatment efficiency of the downstream stage.

Second, microbubbing can be promoted by the stirring action of the generated wastewater, and the aeration performance can be improved by increasing the contact area between the wastewater and oxygen.

Third, it is economical because it is possible to reduce the investment cost by simplifying the structure, to reduce the installation area, and to reduce the maintenance cost including the equipment cost and electricity cost.

Fourth, in the microbubble generating body, the wastewater is refined in the main space through the venturi module, and in the subspace, the air is microfilled with microbubbles in the wastewater through the microbubble generator, thereby improving the processing performance and efficiency And it is possible to maintain uniform performance for a long time.

Fifth, it is possible to improve the wastewater treatment performance by separating and removing the overflowing suspended material from the wastewater through the fluid separator.

Sixth, the eliminators are disposed in multiple stages so that air passing through the surfaces as well as mist collecting on the surface collides with each other, thereby causing the mist to aggregate, thereby improving the mist trapping effect.

Seventh, it is possible to simplify the structure by using the first fluid treatment device and to reduce the maintenance cost including the cost of medicines, waste treatment and utilities (electricity and steam), and to improve the degassing performance of treated water, Can be realized.

BRIEF DESCRIPTION OF DRAWINGS FIG. 1 is a configuration diagram showing the configuration of a wastewater treatment facility according to an embodiment of the present invention; FIG.
2 is a configuration diagram showing a configuration of a wastewater treatment facility according to another embodiment of the present invention.
Fig. 3 is a configuration diagram showing another embodiment of the degassing vessel of Figs. 1 and 2. Fig.
Fig. 4 is a configuration diagram showing the configuration of the first fluid treatment device of Fig. 1;
5 is an enlarged cross-sectional front view of the first water level adjusting portion of FIG.
Fig. 6 is a front sectional view showing the configuration of the eliminator of Fig. 4;
7 is a front sectional view showing the air flow by the eliminator of Fig.
8 is a perspective view showing the first micro-bubble generator of FIG.
Fig. 9 is a configuration diagram showing an operating state of the first micro-bubble generator of Fig. 4; Fig.
Fig. 10 is a configuration diagram showing another embodiment of the first fluid treatment device of Fig. 4; Fig.
Fig. 11 is a cross-sectional view showing still another embodiment of the first fluid treatment device of Fig. 1; Fig.
12 is a cross-sectional view showing another embodiment of the mixed discharge portion and the gas supply pipe of FIG.
13 is a view schematically showing a configuration of a conventional wastewater treatment facility.
FIG. 14 is a block diagram showing the configuration of a wastewater treatment facility according to another embodiment of the present invention to which the first fluid treatment device of FIG. 1 is applied in FIG.
FIGS. 15 and 16 are graphs showing the results of the ammonia degassing test according to the temperature of the conventional wastewater treatment facility of FIG.
17 is a graph showing the results of the ammonia deaeration test through the first fluid treatment device of FIG.

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

1, a wastewater treatment facility according to an embodiment of the present invention includes a degassing vessel 100, an activated sludge tank 200, an anaerobic digestion tank 300, and a settling tank 400 .

In the degassing vessel 100, the degassing vessel 100 supplies aerobic microorganisms and oxygen to the wastewater to allow nitrogen components contained in the wastewater to be deaerated and removed, and is introduced into the degassing vessel 100 through the first fluid treatment device 500 Oxygen is supplied to the wastewater to remove the volatile substances, the odorous substances, and the refractory substances including the ammonia nitrogen contained in the wastewater.

Here, the first fluid treatment device 500 is a gas stripper, which receives air (atmospheric gas) from the outside and microbubbles the air (oxygen) to supply oxygen in the air into the wastewater, Thereby allowing the ammonia, volatile, odoriferous, and refractory materials in the wastewater to be in contact with the oxygen to be degassed and removed. In detail, the first fluid treatment device 500 is connected to a gas-liquid contact area or a gas-liquid contact area through a first micro-bubble generator 520 (see FIG. 4) and a third micro-bubble generator 520a The first fluid treatment device 500 and the third micro bubble generation device 520a will be described in detail later.

The activated sludge tank 200 supplies aerobic microorganisms and oxygen to the treated water carried in from the degassing tank 100 to decompose organic matter by the aerobic microorganisms.

The anaerobic digestion tank 300 serves to anaerobically decompose the treated water carried in from the activated sludge tank 200.

The sedimentation tank 400 serves to flocculate and settle the sludge contained in the treated water carried in from the activated sludge tank 200.

Here, the activated sludge tank 200 and the anaerobic digestion tank 300 may be grouped so that they can flow out to the settling tank 400 by repeating the treatment process corresponding to the treated water carried in from the degassing tank .

Each of the degassing vessel 100, the activated sludge vessel 200, the anaerobic digester vessel 300 and the sedimentation vessel 400 includes a general degassing vessel 100, an activated sludge vessel 200, (300) and the settling tank (400) can be applied. Therefore, the detailed description of the above configuration will be omitted.

FIG. 2 is a view showing a wastewater treatment facility according to another embodiment of the present invention, wherein the wastewater treatment facility includes the degassing vessel 100, the activated sludge tank 200, the anaerobic digester (500) is installed in the degassing vessel (100), and the activated sludge tank (200) is provided with a second fluid treatment device (600) ).

Here, the second fluid treatment device 600 is an aeration device for the activated sludge process. The second fluid treatment device 600 supplies air to the activated sludge tank 200 to bring the treated water into contact with the oxygen in the air, Increase the concentration. Here, the second fluid treatment device 600 has substantially the same configuration as that of the first fluid treatment device 500 except for treating treated water of the activated sludge tank 200 instead of wastewater.

The wastewater treatment facility includes a bypass line 700 for bypassing all or a portion of the treated water discharged from the activated sludge tank 200 and supplying the treated water to the activated sludge tank 200 again, It is possible to selectively bypass the treated water according to the state or the like.

The activated sludge tank 200 and the anaerobic digestion tank 300 are grouped as shown in FIG. 1 (B), and the treatment process is repeatedly performed corresponding to the treated water carried in from the degassing tank, ).

Fig. 3 is a configuration diagram showing another embodiment of the degassing vessel of Figs. 1 and 2. Fig. Referring to FIG. 1, the degassing vessel 100 includes an absorption tower 800 connected to the first fluid treatment device 500, and a malodor processing unit 900, as compared to those of FIGS. 1 and 2. The absorption tower 800 functions to microbubble the ammonia gas flowing out of the first fluid treatment device 500 into ammonia water and recover it.

Although not shown, the absorption tower 800 has a structure similar to that of the micro bubble generator 520 described later inside the body 810 containing water supplied from the outside, And ammonia gas is reacted in contact with water to generate ammonia water and recover the ammonia gas.

The malodor processing unit 900 is connected to the absorption tower 800 and removes odors of the gas flowing out of the absorption tower 800. The malodor processing unit 900 has a structure similar to that of the absorption tower 800 except that the processing body 910 containing treated water has the same structure as the microbubble generator 520, Bubbles the exhaust gas flowing out of the exhaust gas, and causes the exhaust gas to react with the treatment liquid to remove the odorous substance contained in the exhaust gas by dissolving in the treatment liquid.

The malodor processing unit 900 includes a neutralization module 930 connected to a circulation line 920 for circulating the processing liquid therein to neutralize the processing liquid in which the malodor-causing material is dissolved. The neutralization module 930 includes an acidic neutralization module, an alkali neutralization module, and a neutralization module, respectively, corresponding to the malodorous substance. In this embodiment, an alkali neutralization module is applied. The alkali neutralization module dissolves alkaline odor-causing substances such as ammonia and trimethylamine remaining in the exhaust gas to remove the acidic substance from the outside to neutralize the treatment liquid in the treatment body 910 having alkalinity .

In the meantime, although the malodor processing unit 900 is shown as one configuration in the figure, the acidic neutralization module, the alkali neutralization module, and the neutral module may be respectively configured as a single unit, can do.

Hereinafter, the first fluid treatment device 500 and the second fluid treatment device 600 among the first fluid treatment device 500 and the second fluid treatment device 600 having substantially the same configuration will be described in detail first.

Referring to FIG. 4, the first fluid treatment apparatus 500 includes a first micro bubble generating body 510 and a first micro bubble generating apparatus 520. The first micro bubble generating body 510 has an inlet through which air is introduced and has a first storage space for storing the wastewater 1 therein and an outlet through which the air introduced into the upper portion is discharged And an overflow outlet 5103 (see FIG. 4) through which the wastewater 1 overflowed to the side is discharged is formed.

The first storage space includes a first subspace 5101 into which the air and the wastewater 1 are introduced and the wastewater 1 is received therein and a second subspace 5101 communicating with the first subspace 5101, And a first main space 5102 in which the waste water 1 is accommodated and the first micro bubble generator 520 is installed.

The first fluid treatment apparatus 500 further includes a venturi module 562 for finishing the wastewater 1 installed in the first sub space 5101 and the venturi module 562 A funnel portion 5621, a discharge portion 5622 and an impingement member 5623. The upper portion of the funnel portion 5621 is opened so that the air and the wastewater 1 are introduced together and the wastewater 1 And a shape that becomes narrower toward the lower side in order to increase the flow velocity of the air.

The discharge portion 5622 extends downward from the outlet of the funnel portion 5621 to guide the waste water 1 and the air downward.

The impingement member 5623 is disposed to be spaced apart from the lower portion of the discharge portion 5622 and serves to spread out laterally while colliding with the upper surface of the waste water 1 flowing out from the discharge portion 5622 . In the drawing, reference numeral 561 denotes a water tank which is located above the venturi module 562 and accommodates the wastewater 1 and air together.

The first micro bubble generating body 510 includes a water level adjusting unit 110 installed on the overflow outlet 5103 side. 5, the water level control unit 110 is installed to be slidable in the vertical direction with respect to the overflow outlet 5103 so as to control the overflow water level of the wastewater 1. The reference numeral 2 denotes a damper capable of controlling the flow rate of the flowing air, and a detailed description thereof will be omitted because a known damper can be applied.

The first fluid treatment device 500 is disposed above the first micro bubble generator 520 and is spaced apart from each other in a direction opposite to the flow direction of the air to remove mist ≪ / RTI > can include a plurality of < RTI ID = 0.0 >

Meanwhile, the degassing vessel 100 may perform degassing through the first fluid treatment device 500, but in some cases, the first fluid treatment device 500 may further improve the degassing performance . For this, the degassing vessel 100 can increase the pH concentration in the wastewater by injecting alkaline solution such as caustic soda into the wastewater, thereby improving the degassing performance. Further, by improving the rpm of the suction fan 580, So that the degassing performance can be controlled and improved. Here, in order to inject the alkali solution, the input amount of the alkali solution can be adjusted through the input line and the control valve provided in the input line so that the alkaline solution can be inputted into the circulation supply line 551 through which the process water flows have.

That is, according to the above description, the degassing vessel 100 performs the degassing process by the first fluid treatment device 500, and in some cases, the suction fan 580 ) And the amount of the alkali solution supplied through the control valve and the amount of the alkaline solution to be supplied. The degassing vessel 100 monitors the pH and TN concentration of the treated water discharged from the degassing vessel 100 and controls the rpm of the suction fan 580 in response to the concentration of the alkaline solution And the like can be controlled.

Referring to FIGS. 6 and 7, the eliminators 570 are spaced apart from each other in the flow direction of the air and staggered with respect to the flow direction of the air. The first micro bubble generating body 510 includes a first micro bubble generating body 510 and a second micro bubble generating body 510. The first and second micro bubble generating bodies 570 and 560 extend along the width direction of the first micro bubble generating body 510, Is fixedly coupled to the inner wall of one side of the first micro bubble generating body 510 and the other side of the inner wall of the first micro bubble generating body 510, and is fixed in the first micro bubble generating body 510.

In detail, the eliminator 570 includes: a first elimator 571 having a flow cross-sectional shape formed in an inverted oblique shape; a second elimator 571 disposed behind the first elimator 571, Lt; RTI ID = 0.0 > 572 < / RTI >

Here, a drain hole 711 is formed in the first eliminator 571 so that the mist trapped at the lowermost end can be discharged.

Meanwhile, the above-described eliminators 570 are arranged in a staggered manner so as to be shifted from each other in a multistage manner, and as shown in FIG. 4, by inducing the mists passing between the eliminators 570 to collide with each other, To be gravitationally captured, and to minimize the loss of pass-through friction. In addition, the installation height can be reduced, which can reduce the production cost of the facility.

On the other hand, the micro bubble has a feature that the bubble size is small, the rising speed of the bubble is slow, the gas solubility is high, the friction resistance is reduced, the pressure in the bubble is large, the contact area is large, , And has the property that the contact area between the oxygen in the air and the wastewater 1 can be increased to improve the reaction efficiency. Thus, the first micro-bubble generator 520 may generate the micro-bubbles to improve the wastewater treatment performance.

8, the first micro-bubble generator 520 is installed in the first micro-bubble generating body 510. When the operation of the micro-bubble generator 520 is stopped, the water level of the wastewater 1 is lowered to the air, In operation, the first sub-space 5101 is in a negative pressure state, the water level rises and is immersed in the wastewater 1, and the inflowing air is refined in the wastewater 1 to form microbubbles .

In detail, the first micro bubble generator 520 includes a first nozzle unit 521 and a first impact unit 522. The first nozzle portion 521 is formed so that the flow cross-sectional area gradually decreases to increase the flow rate of the air introduced through the first inlet portion 5201 and discharge it to the first outlet portion 5202, The first outlet portion 5202 is immersed in the wastewater 1 so that the air is sprayed in the wastewater 1.

The first impingement portion 522 is spaced apart from the upper portion of the first outlet portion 5202 so that the air injected from the first nozzle portion 521 collides with the bottom surface to refine the air . The first impingement portion 522 is formed of one or a plurality of impingement plates which are positioned in a horizontal direction with respect to the outflow direction of the air so that the air impinges on the lower surface and spreads to the side.

The first impingement portion 522 includes a first impingement plate 5221 spaced apart from the upper portion of the first outflow portion 5202, And a pair of second collision plates 5222 positioned on both sides of the first collision plate 5221 so as to collide with the first collision plate 5221. It should be noted that the number of the first colliding portions 522 and the number of the multi-layered layers may be varied if the above objects can be achieved.

According to the above, since the first micro-bubble generator injects air without using the existing separate compressed air injecting device through the first nozzle portion 521, it is possible to use separate electricity for operating the compressed air injecting device There is no need to reduce the operation cost, and microbubbles can be generated to obtain low cost and high efficiency.

The first micro bubble generator 520 includes an adjustment member 523 for adjusting the cross-sectional area of the first outlet 5202 and a second collision portion 522 from the first nozzle portion 521, And a position regulating portion 524 for moving the regulating portion 524 in the lateral direction and the longitudinal direction.

The adjusting member 523 includes a throttling plate 5231 slidably coupled to an upper side surface of the first nozzle unit 521 and having a sliding hole (not shown) formed therein, To the first nozzle part (521), and adjusts a passing cross-sectional area of the first outlet part (5202) according to the sliding movement.

The position adjusting part 524 is coupled to the first micro bubble generating body 510 and includes a height adjusting plate 5241, a coupling plate 5243 and a fastening member 5245. The height regulating plate 5241 is coupled to the first micro bubble generating body 510 and has a first sliding hole 5242 formed along the longitudinal direction.

The engaging plate 5243 is engaged with the first impact portion 522 and has a second sliding hole 5244 formed along the transverse direction.

The fastening member 5245 is fastened to the first sliding hole 5242 and the second sliding hole 5244 to fasten the height adjusting plate 5241 and the coupling plate 5243, And serves to fix the position of the base plate 522.

The first fluid treatment device 500 is installed through the through hole 5246 formed in the height regulating plate 5241 and is coupled to the inner wall of the first micro bubble generating body 510, And a support portion 5250 for supporting the generating device 520. [ The supporting part 5250 has one end coupled to the inner wall of one side of the first micro bubble generating body 510 and the other end coupled to the other side inner wall facing the one inner wall of the first micro bubble generating body 510, The first micro bubble generating body 510 is installed so that its position is fixed.

The first fluid treatment apparatus 500 sucks wastewater from the degassing vessel 100 through a circulation supply unit 550 and then through the fluid treatment apparatus to circulate and supply the wastewater to the degassing vessel 100.

The circulation supply unit 550 includes a circulation supply line 551, a circulation pump 552, and a flow control valve 553. One end of the circulation supply line 551 is communicated with the degassing vessel 100 and the other end of the circulation feed line 551 is connected to the upper portion of the first microbubble generating body 510 to communicate with the upper portion of the degassing vessel 100, And sucks the waste water 1 and circulates and supplies the waste water 1 to the upper portion of the first storage space.

The circulation pump 552 is installed on the circulation supply line 551 and functions to force the wastewater 1 to flow. A positive pressure is formed in the first storage space so that the first micro- To be immersed in wastewater.

The flow control valve 553 controls the flow rate of the wastewater 1 installed on the circulation supply line 551 in front of and behind the circulation pump 552.

Meanwhile, the first fluid treatment device 500 can pressurize the first micro-bubble generating body through the circulation pump 552 to immerse the first micro-generator in the wastewater, The inside of the first micro bubble generating body is made to be a negative pressure through the suction pump 580 so that the first micro generator can be immersed in the wastewater.

9 is a view showing a state of the first fluid treatment device 500 in operation. The first fluid treatment apparatus 500 sucks wastewater from the degassing vessel 100 and discharges the wastewater 1 to the first main space 5102 in a state where the wastewater 1 is stored in the first storage space The first microbubble generator 520 is immersed in the wastewater 1 as the level of the wastewater 1 increases. In this state, the air drawn into the first micro-bubble generator 520 is sprayed in the waste water 1 in the sub space 101 in a state in which the flow rate of the air is rapidly increased by the first nozzle part 521 Micro bubbles are generated while colliding with the first impact portion 522, oxygen in the air and the wastewater 1 are brought into contact with each other to degas. Meanwhile, as described above, in the first main space 5102, the first fluid processing apparatus 500 is configured such that air is refined through the first microbubble generator 520 in the first subspace 5101, And the waste water 1 is made finer through the venturi module 562.

FIG. 10 is a view showing another embodiment of the first fluid treatment device 500. FIG. 3, the first fluid treatment device 500 includes a first micro bubble generating body 510, a first micro bubble generator 520, a fluid separator 530, a suction pump , And a discharge chamber. Here, the first micro bubble generating body 510 and the first micro bubble generating apparatus 520 include the first micro bubble generating body 510, the first micro bubble generating apparatus 520, The same reference numerals denote the same constituent elements in the following description.

The fluid separator 530 is connected to the overflow outlet 5103 of the first micro bubble generating body 510 so that the waste water 1 flowing out of the overflow outlet 5103 and the waste water 1 And the suspended solids 1 and the suspended solids 3 are separated from each other to remove the suspended solids 3 and only the wastewater 1 is removed from the degassing vessel 100 So as to reduce the foaming removal load of the degassing vessel 100.

The fluid separator 530 includes a separating tank 531 and a partition wall portion 532. The separation tank 531 communicates with the overflow outlet 5103 to introduce the waste water 1 and the suspended material 3 into the waste water 1 and the suspended material 3 in an open state, . In the drawing, the separating tank 531 is divided into a first separating tank into which the overflowed wastewater 1 and the suspended solids 3 are introduced, and a second separating tank in which the separating wall portion 532 is located behind the first separating tank. However, the present invention is not limited thereto.

The partition wall 532 serves to separate the wastewater 1 from the suspended solids 3. Specifically, the partition wall portion 532 is positioned vertically or obliquely with respect to the separating tank 531, and the upper end portion thereof is positioned so as to protrude higher than the floating material 3 of the separating tank 531, Is spaced apart from the bottom surface of the bath 531 so that the suspended material 3 is removed at the top and only the wastewater 1 passes downwards.

The suction pump 580 communicates with the outlet of the first micro bubble generating body 510 to suck the air in the first storage space and to draw the first storage space into a negative pressure state Thereby increasing the water level of the wastewater 1.

Meanwhile, the first fluid treatment device 500a may include a discharge chamber 581 to remove residual dust contained in the air discharged from the suction pump 580. [ The discharge chamber 581 is installed on the rear discharge line of the suction pump 580. The air flowing out from the suction pump 580 flows through the gas inlet and flows in the turbulent state Thereby reducing the flow velocity and precipitating the dust contained in the air.

The discharge chamber 581 further includes a guide portion 582 installed at the gas inlet of the discharge chamber 581 to guide the flow of the introduced air into the discharge chamber 581 in a turbulent state .

The guide portion 582 is preferably formed to be inclined downward as shown in FIG. 6 so as to induce downward flow of the introduced air and collide against the inner wall of the discharge chamber 581 to form a turbulent flow. However, Of course, it is possible to have various shapes.

Meanwhile, the second fluid treatment device 600 is provided with an inlet through which air flows in correspondence with the first fluid treatment device 500, and the treatment water sucked from the activated sludge tank 200 A second micro bubble generating body provided with an outlet through which the air introduced into the upper portion is discharged, a second micro bubble generating body provided in the second micro bubble generating body, A second nozzle portion for causing the second outlet portion to be immersed in the process water so that the air is sprayed in the process water, and a second nozzle portion for separating the second outlet portion from the second outlet portion, And a second impact portion which is located in the second nozzle portion to cause the air injected from the second nozzle portion to collide with the bottom surface, And a second micro-bubble generating device such that the forming block. Here, the configuration of the second fluid treatment device 600 corresponds to that of the first fluid treatment device 500 described above, and a detailed description thereof will be omitted.

FIG. 11 is a view showing another embodiment of the first fluid treatment apparatus 500a of FIG. 1. Referring to FIG. 11, the first fluid treatment apparatus 500a is located in the degassing vessel 100, Microbubbles are formed in the wastewater so that the wastewater and the oxygen in the air come into contact with each other to degas.

1, the first fluid treatment apparatus 500a is installed directly in the degassing vessel 100, and has buoyancy so that the wastewater of the degassing vessel 100 is partially submerged and a part thereof floats on the surface of the water. .

The first fluid treatment apparatus 500a may be installed independently of the degassing vessel 100 and may be installed in the degassing vessel 100 in consideration of the processing capacity or design of the degassing vessel 100 have. According to the above description, the first fluid treatment device 500a can achieve the best degassing effect with minimum manufacturing cost and installation cost.

In detail, the first fluid treatment device 500a includes a third micro bubble generator 520a and a first mixed discharge unit 510a. The third micro bubble generator 520a micro-bubbles the air in the wastewater during operation to supply oxygen in the air to the wastewater to degas the nitrogen component in the wastewater, 521a, and a first collision member 522a.

The first gas supply pipe 521a has a tubular shape and an insertion end at one side thereof is located in the degassing vessel 100 to supply air into the degassing vessel 100. An end of the first gas supply pipe 521a, . On the other hand, the first gas supply pipe 521a is connected to a blowing fan for forcibly supplying air and increasing the flow rate of air.

The first impingement member 522a is installed to be spaced apart from the end of the first gas supply pipe 521a and is immersed in the wastewater during operation and the air flowing out from the first gas supply pipe 521a Thereby causing the air to become microbubbles in the wastewater.

The first impingement member 522a includes a first impingement plate 5221 and a second impingement plate 5222 in a multi-stage structure, and the first impingement plate 5221 and the second impingement plate 5222 And an engaging member 5223 for engaging with each other at a distance.

The first impingement plate 5221 is disposed at an upper portion from the insertion end of the first gas supply pipe 521a and is disposed laterally with respect to the outflow direction of the air flowing out from the first gas supply pipe 521a , And the air flowing out from the first gas supply pipe 521a collides with the lower surface.

The first impingement plate 5221 is engaged with the first gas supply pipe 521a by the engaging member 5223 and its position is fixed.

The coupling member 5223 is pillar-shaped and spaced apart along the insertion end of the first gas supply pipe 521a. One end of the coupling member 5223 is coupled to the insertion end of the first gas supply pipe 521a, And is coupled to the outer circumferential side surface or the lower surface of the impact plate 5221 so as to connect the first impingement plate 5221 to the first gas supply pipe 521a.

The second impact plate 5222 is spaced apart from the upper portion of the first impact plate 5221 and is engaged with the first impact plate 5221 by the engagement member 5223 to fix its position. The second impingement plate 5222 is disposed in the transverse direction and spreads to the side surface of the first impingement plate 5221 so that the air flowing in the upward direction collides with the lower surface and spreads to the side surface.

Here, the first impingement plate 5221 and the second impingement plate 5222 are formed in a disc shape, the second impingement plate 5222 is formed larger in diameter than the first impingement plate 5221, So that the gas that spreads to the side of the first impact plate 5221 collides with the lower surface and spreads to the side.

As shown in the figure, the first impingement plate 5221 and the second impingement plate 5222 are formed in a disc shape corresponding to the flow cross-sectional shape of the first gas supply pipe 521a, It is a matter of course that the present invention can be applied to any structure as long as air can collide with the bottom surface and spread out.

The first mixing and discharging part 510a is located in the degassing vessel 100 and the first gas supply pipe 521a and the first impingement member 522a are located in the inner space 513a, The air is micro-bubbled in the air pump 513a, and the wastewater and oxygen in the air are mixed to supply oxygen to the wastewater.

The first mixed discharge portion 510a includes a first mixing chamber 511a, a first circulation pipe 530a, and a first buoyancy member 540a. The first mixing chamber 511a is positioned in the degassing vessel 100 so as to be partially submerged in the water surface of the wastewater in the degassing vessel 100. The lower portion is submerged in the wastewater and the upper portion is exposed on the water surface And the first outlet 514a floats in the waste water so as to be positioned above the water surface.

The first mixing chamber 511a has a first inlet 5111a through which the wastewater flows and a first outlet 51112b through which the air flows out. In addition, the first mixing chamber 511a is formed by inserting and fixing the first gas supply pipe 521a inwardly to the side of the first mixing chamber 511a so as to connect the insertion end of the first gas supply pipe 521a to the first internal space 513a, The collision member 522a is positioned and one or a plurality of first outlets 514a communicating with the first inner space 513a are formed on the upper side.

According to the above description, the first mixed discharge portion 510a is configured such that the air is refined in the first internal space 513a during operation and flows out of the wastewater flowing from the lower portion and the first gas supply pipe 521a The wastewater and bubbles or suspended matters in the first internal space 513a are discharged through the first outlet 514a while the air is mixed with the first internal space 513a, And is supplied to the outside of the chamber 511a.

The first circulation pipe 530a is located outside the first mixing chamber 511a and is connected to the first mixing chamber 511a and has one end communicating with the first outlet 514a, And is formed by bending downward to be submerged in the wastewater and discharging the wastewater discharged from the first discharge port 514a to circulate the wastewater to enlarge the oxygen supply region in the degassing vessel 100. [ The first circulation pipe 530a serves not only to discharge wastewater from the degassing vessel 100 but also to discharge the bubbles or floating substances floating on the surface of the wastewater in the first internal space 513a So that the air in the first internal space 513a can be smoothly discharged and the degassing effect can be improved.

In the drawing, the first circulation pipe 530a has one end connected to the first outlet 514a and the other end bent downward to be inserted into the wastewater, and the first circulation pipe 530a is connected to the first outlet 514a The wastewater and the foamed or suspended matter to be discharged are supplied into the wastewater. However, in a preferred embodiment, the other end is not immersed in the wastewater, and the bubble or suspended matter is discharged onto the wastewater outside the first mixing chamber 511a Of course.

As shown in the drawing, the first mixing and discharging part 510a is formed by using a tube to facilitate the handling and reduce the manufacturing cost, and the first mixing chamber 511a is formed by bending the tube, 530a.

The first buoyancy members 540a and 364 are connected to the first mixing chamber 511a or the first circulation pipe 530a to connect the first mixing chamber 511a and the first circulation pipe 530a To partially submerged in the wastewater water surface and to provide buoyancy such that the first outlet 514a is located above the wastewater water surface.

The first buoyancy member 540a may be coupled to the outer surface of the first circulation pipe 530a as shown in FIG. However, it goes without saying that, in one embodiment, the first mixing chamber 511a can be coupled to the first mixing chamber 511a if the first mixing and discharging part 510a can stably float on the surface of the wastewater. It can be varied in consideration of buoyancy degree and stable position.

12 is a view showing another embodiment of the first mixing and discharging part 510a. In comparison with FIG. 11, the first circulation pipe 530a and the first gas supply pipe 521a are different from each other in shape to be.

Referring to the drawing, the first circulation pipe 530a may be extended longer than the length of the other end of the first circulation pipe 530a so as to be deeply immersed in the waste water, thereby improving the circulation effect of the waste water. The structure including the extension length of the first circulation pipe 530a may be variously modified according to the design.

1, the first gas supply pipe 521a may be formed to be downwardly bent so that air can be microbubbed at a deeper position. In this case, the first mixing and discharging part 510a can further increase the time during which the micronized oxygen is retained in the wastewater by the third micro bubble generator 520a, thereby improving the reaction rate and the degassing efficiency.

The first mixing and discharging portions 510a and 510b are formed in the inner spaces 513a and 513b of the first mixing chambers 511a and 511b to form micro bubbles, Bubbles or suspended substances in the internal spaces 513a and 513b of the first mixing chambers 511a and 511b are circulated and supplied to the outside through the first and second mixing chambers 530a and 530b to promote the circulation of the wastewater in the degassing vessel 100 The structure can be simplified, the manufacturing cost can be reduced, the installation cost and manufacturing cost can be reduced, and the economical efficiency can be improved. In FIG. 12, reference numerals 500b, 514b, 521b, 522b and 540b denote a first fluid treatment device, a first discharge port, a second gas supply pipe, a first collision member and a first buoyant member, and 5111b and 5112b, 1 inlet and a first outlet, and a detailed description thereof will be omitted because it corresponds to the configuration of FIG.

On the other hand, although not shown, the wastewater treatment facility may be provided with a fourth micro bubble generating device and a second fluid treatment device including a second mixed discharge part in the activated sludge tank to supply oxygen into the treated water. Here, the fourth micro-bubble generator and the second mixing / discharging unit correspond to the configurations of the third micro-bubble generator and the first mixing / discharging unit, respectively, and thus a detailed description thereof will be omitted.

FIG. 13 is a schematic view showing the configuration of a conventional wastewater treatment facility, and FIG. 14 is a configuration diagram showing a configuration of a wastewater treatment facility according to another embodiment of the present invention to which the first fluid treatment device of FIG. 1 is applied And FIGS. 14 to 17 are graphs showing the ammonia degassing test results of the wastewater treatment facility of FIGS. 13 and 14, and the effect of the first fluid treatment device 500 will be described.

FIG. 13 is a view showing a conventional wastewater treatment facility by processes. In the conventional wastewater treatment facility, raw wastewater is transferred to a TN wastewater collecting tank and then treated while sequentially passing through an ABS treatment tank, a TN treatment tank, and a storage tank have. The ABS treatment tank adsorbs harmful substances in the wastewater by using activated carbon and discharges the wastewater into waste. In the TN treatment tank, caustic soda and air to improve the degassing performance by increasing lime water and pH, And steam is used to remove the nitrogen component in the treated water.

Meanwhile, in the conventional wastewater treatment facility, a large amount of chemical costs such as activated carbon, caustic soda, and calcium hydroxide are required for deaeration in a TN treatment tank. In addition, waste treatment costs for treating wastes, It can be seen that the operation cost of the wastewater treatment facility such as the utility cost is high.

However, FIG. 14 shows a case where the degassing process of the TN treatment tank of FIG. 13 is carried out using the first fluid treatment device 500 of FIG. 1, in which case the wastewater treatment facility does not add caustic soda to the degassing process, Only the basic minimum amount of caustic soda is required to remove the nitrogen component in the treated water through the first fluid treatment device 500.

14, since the first fluid treatment device 500 has a superior reaction rate of nitrogen component and oxygen, the wastewater treatment facility of FIG. 14 can achieve the deaeration performance without any utility facility such as separate chemical treatment and steam supply for degassing Can be improved.

In other words, the wastewater treatment facility according to another embodiment of the present invention shown in Fig. 14 is simpler in structure compared to the conventional wastewater treatment facility of Fig. 11 and has a maintenance cost including a cost of medicine, a waste treatment cost and a utility Can be reduced, and the degassing performance of the treated water can be improved, thereby realizing a low cost and high efficiency.

Hereinafter, the results of the ammonia degassing test according to the wastewater treatment facilities of FIGS. 13 and 14 will be described.

FIG. 15 is a graph showing the results of TN concentration with respect to the operating time by the conventional wastewater treatment plant of FIG. 13, in which a total of four tests were carried out. The test conditions were as follows: the steam use wastewater temperature was maintained at 70 DEG C, After the addition, the pH was maintained at 12.5 and the amount of air introduced was 3 to 5 m 3 / min.

As shown in Table 1, the removal efficiency of 89% to 91% was obtained after 72 hours from the start of operation as shown in Table 1, although the TN concentration of the conventional wastewater treatment facility was decreased according to the operation time.

Next, FIG. 16 is a graph showing the results of degassing treatment by the conventional wastewater treatment facility of FIG. 13, wherein the test conditions are that the wastewater temperature is kept at 30 ° C (no additional steam is used, After the addition of caustic soda, the pH was maintained at 12.5 and the amount of air introduced was 3 to 5 m 3 / min. As shown in Table 2, up to 73% of the degassing efficiency was measured for 72 hours of operation time.

FIG. 17 is a graph showing the results of ammonia deaeration test using the first fluid treatment device 500 of FIG. 14, and a total of four tests were conducted. The circulation amount was 800 L for 24 hours (24 hours) Respectively. As a result, it can be seen that the concentration of TN is drastically reduced according to the operation time when the first fluid treatment device 500 is used. Also, as shown in Table 3, the effluent treatment facility was able to achieve a high TN efficiency of 90.5% to 91.9% even when operated for 24 hours.

According to the above description, in the case of the conventional wastewater treatment facility shown in Fig. 13, it takes about three days as the operation time in the degassing tank to degas the concentration of TN of about 1000 ppm in the raw wastewater, When the fluid treatment apparatus 500 is used, it can be seen that a degassing effect of 90% or more can be obtained even in a small operation time of 24 hours without additional supply of chemicals such as lime water without additional air and steam supply.

That is, by using the first fluid treatment device 500, the wastewater treatment facility can obtain a high degassing efficiency even in a short operation time, and it is confirmed that the degassing performance is superior. The structure is simple, and the medicine cost, It is possible to reduce the maintenance cost including the utility (electricity, steam) costs, thereby realizing low cost and high efficiency.

While the present invention has been described with reference to exemplary embodiments, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, but, on the contrary, is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the appended claims. Accordingly, the true scope of the present invention should be determined by the technical idea of the appended claims.

100 ... degassing tank 200 ... activated sludge tank
300 ... anaerobic digester 400 ... sedimentation tank
500, 500a, 500b, ...,
510 ... first micro bubble generating body 5101 ... first subspace
5102 ... first main space 5103 ... first overflow outlet
520 ... First micro bubble generator 5201 ... First micro bubble generator
5202 ... first outlet portion 521 ... first nozzle portion
522 ... first impact portion 5221 ... first impact plate
5222 ... second collision plate 523 ... regulating member
5231 ... regulating plate 524 ... position adjusting section
5241 ... height adjustment plate 5242 ... first sliding hole
5243 ... engaging plate 5244 ... second sliding hole
5245 ... fastening member 5246 ... through hole
525 ... support portion 530 ... fluid separator
5310 ... separating tank 532 ... partition wall portion
550 ... circulation supply part 551 ... circulation supply line
552 ... circulation pump 553 ... flow control valve
561 ... aquarium 562 ... venturi module
5621 ... funnel portion 5622 ... discharging portion
5623 ... collision member 570 ... Eliminator
571 ... First Eliminator 572 ... Second Eliminator
580 ... suction pump 581 ... discharge chamber
582 ... guide portions 510a, 510b ... First and second mixed discharge portions
511a, 511b ... First and second mixing chambers 5111a, 5111b ... First and second inlet
5112a, 5112b ... First and second outlets
513a, 513b ... First and second inner spaces 514a, 514b ... First and second outlets
520a, 520b ... Third and fourth micro bubble generator
521a, 521b ... First and second gas supply pipes
522a, 522b ... First and second collision members 5221 ... First collision plate
5222 ... second impact plate 5223 ... first engagement member
530a, 530b ... First and second circulation pipes 540a, 540b ... First and second buoyancy members
600 ... second fluid treatment device 700 ... bypass line
800 ... Absorption tower 900 ... odor processor

Claims (20)

A degassing vessel for supplying oxygen to the wastewater brought in from the collecting tank through the first fluid treatment device to allow the nitrogen component contained in the wastewater to be degassed;
An activated sludge tank for supplying aerobic microorganisms and oxygen to the treated water carried in from the degassing tank to decompose organic matter by the aerobic microorganisms; And
And a sedimentation tank for agglomerating and precipitating sludge contained in the treatment water carried in from the activated sludge tank,
Wherein the first fluid treatment device is configured to inject air into the wastewater sucked from the deaeration tank, microbubble the air in the wastewater, supply oxygen in the air to the wastewater, Degassing,
A first microbubble generating body having an inlet through which air is introduced and a first storage space for receiving the wastewater to be sucked from the degassing vessel, ,
Wherein the first microbubble generating body is installed in the first microbubble generating body so as to increase the flow rate of the air introduced through the first inflow portion to the first outflow portion and in operation the first outflow portion is immersed in the wastewater, And a first impingement portion positioned apart from the first outflow portion to cause the air injected from the first nozzle portion to collide with the bottom surface of the first impingement portion, Bubbling in the wastewater to supply oxygen in the air to the wastewater to degas the nitrogen component in the wastewater;
A second microbubble generating body installed at a side of a first overflow outlet through which the waste water and suspended substances are overflowed from the first microbubble generating body and is installed so as to be slidable in a vertical direction relative to the first overflow outlet, A first water level adjusting unit for adjusting the flow level,
And a first fluid separator communicating with the first overflow outlet for introducing suspended matter existing on the surface of the wastewater and the wastewater in the first storage space and separating the wastewater and the suspended material from each other, equipment. A degassing vessel for supplying oxygen to the wastewater brought in from the collecting tank through the first fluid treatment device to allow the nitrogen component contained in the wastewater to be degassed;
An activated sludge tank for supplying aerobic microorganisms and oxygen to the treated water brought in from the degassing tank through the second fluid treatment device to cause organic matter decomposition by the aerobic microorganisms; And
And a sedimentation tank for agglomerating and precipitating sludge contained in the treatment water carried in from the activated sludge tank,
Wherein the first fluid treatment device is configured to inject air into the wastewater into the deasphalting bath and microbubble the air in the wastewater to supply oxygen in the air to the wastewater to degas the nitrogen component in the wastewater ,
A first microbubble generating body having an inlet through which air is introduced and a first storage space for receiving the wastewater to be sucked from the degassing vessel, ,
Wherein the first microbubble generating body is installed in the first microbubble generating body so as to increase the flow rate of the air introduced through the first inflow portion to the first outflow portion and in operation the first outflow portion is immersed in the wastewater, And a first impingement portion positioned apart from the first outflow portion to cause the air injected from the first nozzle portion to collide with the bottom surface of the first impingement portion, Bubbling in the wastewater to supply oxygen in the air to the wastewater to degas the nitrogen component in the wastewater;
A second microbubble generating body installed at a side of a first overflow outlet through which the waste water and suspended substances are overflowed from the first microbubble generating body and is installed so as to be slidable in a vertical direction relative to the first overflow outlet, A first water level adjusting unit for adjusting the flow level,
And a first fluid separator communicating with the first overflow outlet for introducing suspended solids existing on the surface of the wastewater and the wastewater in the first storage space and separating the wastewater and the suspended material,
Wherein the second fluid treatment device injects air into the treated water of the activated sludge tank and microbubbles the air in the treated water to supply oxygen in the air into the treated water. delete The method according to claim 1 or 2,
Wherein the first microbubble generating body comprises:
A first subspace into which the air and the wastewater are introduced and in which the wastewater is received, and a second subspace communicating with the first subspace to receive the air and accommodate the wastewater, 1 < / RTI > main space. The method of claim 4,
Further comprising: a venturi module installed in the first subspace and adapted to refine the wastewater to be introduced and the treated water,
The venturi module includes:
A funnel portion which is opened at an upper portion and the air and the wastewater are introduced together and narrows downwardly in order to increase a flow rate of the air;
A discharge portion extending downward from an outlet of the funnel portion and guiding the wastewater and the air downward;
And an impingement member that is spaced apart from the lower portion of the discharge portion and that causes the wastewater discharged from the discharge portion to spread to the side while colliding with the air. The method of claim 4,
Further comprising: a plurality of eliminers installed in the first storage space and disposed to be spaced apart from each other in a direction opposite to the flow direction of the air to remove mist in the first storage space,
The above-
Wherein the first and second flow passages are disposed at a plurality of stages along the flow direction of the air and staggered with respect to the flow direction of the air,
A first eleminator having a flow cross-sectional shape formed in an inverted triangular shape; and a second eleminator positioned behind the first eleminator and having a flow cross-sectional shape formed in a triangular shape. A degassing vessel for supplying oxygen to the wastewater brought in from the collecting tank through the first fluid treatment device to allow the nitrogen component contained in the wastewater to be degassed;
An activated sludge tank for supplying aerobic microorganisms and oxygen to the treated water carried in from the degassing tank to decompose organic matter by the aerobic microorganisms; And
And a sedimentation tank for agglomerating and precipitating sludge contained in the treatment water carried in from the activated sludge tank,
Wherein the first fluid treatment device is configured to inject air into the wastewater sucked from the deaeration tank, microbubble the air in the wastewater, supply oxygen in the air to the wastewater, Degassing,
A first microbubble generating body having an inlet through which air is introduced and a first storage space for receiving the wastewater to be sucked from the degassing vessel, ,
Wherein the first microbubble generating body is installed in the first microbubble generating body so as to increase the flow rate of the air introduced through the first inflow portion to the first outflow portion and in operation the first outflow portion is immersed in the wastewater, And a first impingement portion positioned apart from the first outflow portion to cause the air injected from the first nozzle portion to collide with the bottom surface of the first impingement portion, Bubbles in the wastewater to supply oxygen in the air to the wastewater to degas the nitrogen component in the wastewater,
Wherein the first micro bubble generator comprises:
An adjusting member that is slidably coupled along an upper side surface of the first nozzle unit and adjusts the cross-sectional area of the first outlet portion according to the sliding movement; and a second microbubble generating body coupled to the first microbubble generating body, And a position adjusting portion for moving the first impact portion in the lateral and longitudinal directions,
The position adjusting unit may include a height adjusting plate having a first sliding hole formed in the longitudinal direction of the first microbubble generating body and coupled to the first microbubble generating body and a second sliding hole coupled with the first impact portion, And a fastening member fastened to the first sliding hole and the second sliding hole to fasten the height adjusting plate and the coupling plate and fix the position of the first impact portion. A degassing vessel for supplying oxygen to the wastewater brought in from the collecting tank through the first fluid treatment device to allow the nitrogen component contained in the wastewater to be degassed;
An activated sludge tank for supplying aerobic microorganisms and oxygen to the treated water brought in from the degassing tank through the second fluid treatment device to cause organic matter decomposition by the aerobic microorganisms; And
And a sedimentation tank for agglomerating and precipitating sludge contained in the treatment water carried in from the activated sludge tank,
Wherein the first fluid treatment device is configured to inject air into the wastewater into the deasphalting bath and microbubble the air in the wastewater to supply oxygen in the air to the wastewater to degas the nitrogen component in the wastewater ,
A first microbubble generating body having an inlet through which air is introduced and a first storage space for receiving the wastewater to be sucked from the degassing vessel, ,
Wherein the first microbubble generating body is installed in the first microbubble generating body so as to increase the flow rate of the air introduced through the first inflow portion to the first outflow portion and in operation the first outflow portion is immersed in the wastewater, And a first impingement portion positioned apart from the first outflow portion to cause the air injected from the first nozzle portion to collide with the bottom surface of the first impingement portion, Bubbles in the wastewater to supply oxygen in the air to the wastewater to degas the nitrogen component in the wastewater,
Wherein the first micro bubble generator comprises:
An adjusting member that is slidably coupled along an upper side surface of the first nozzle unit and adjusts the cross-sectional area of the first outlet portion according to the sliding movement; and a second microbubble generating body coupled to the first microbubble generating body, And a position adjusting portion for moving the first impact portion in the lateral and longitudinal directions,
The position adjusting unit includes a height adjusting plate having a first sliding hole formed in the longitudinal direction of the first microbubble generating body and coupled to the first microbubble generating body, and a second sliding hole formed in the transverse direction And a fastening member fastened to the first sliding hole and the second sliding hole at the same time to fasten the height adjusting plate and the coupling plate and fix the position of the first impact portion,
Wherein the second fluid treatment device injects air into the treated water of the activated sludge tank and microbubbles the air in the treated water to supply oxygen in the air into the treated water. The method of claim 2,
Wherein the second fluid treatment device comprises:
And a second storage space for receiving the treated water sucked from the activated sludge tank is formed in the inside of the activated sludge tank, and a second microbubble generation The body,
Wherein the second micro bubble generating body is installed in the second micro bubble generating body so as to increase the flow rate of the air introduced through the second inflow portion to the second outflow portion so that the second outflow portion is immersed in the treated water, And a second impingement portion which is located apart from the second outflow portion and makes the air jetted from the second nozzle portion collide with the bottom surface, And a second micro-bubble generating device for micro-bubbling the water in the treated water to supply oxygen in the air into the treated water. The method of claim 9,
Wherein the second micro bubble generating body comprises:
A second subspace in which the air and the process water are introduced and in which the process water is received, and a second subspace communicating with the second subspace to receive the air, receive the process water, and install the second microbubble generator And the second storage space including two main spaces. The method of claim 10,
Further comprising a venturi module installed in the second subspace to refine the introduced process water,
The venturi module includes:
A funnel portion having an upper portion opened to allow the air and the process water to flow together and to be narrowed downward to increase a flow rate of the air;
A discharge portion extending downward from the outlet of the funnel portion and guiding the treated water and the air downward;
And an impingement member positioned apart from the lower portion of the discharge portion and allowing the treated water flowing out from the discharge portion to spread to the side while colliding with the upper surface. A degassing vessel for supplying oxygen to the wastewater brought in from the collecting tank through the first fluid treatment device to allow the nitrogen component contained in the wastewater to be degassed;
An activated sludge tank for supplying aerobic microorganisms and oxygen to the treated water brought in from the degassing tank through the second fluid treatment device to cause organic matter decomposition by the aerobic microorganisms; And
And a sedimentation tank for agglomerating and precipitating sludge contained in the treatment water carried in from the activated sludge tank,
Wherein the first fluid treatment device is configured to inject air into the wastewater into the deasphalting bath and microbubble the air in the wastewater to supply oxygen in the air to the wastewater to degas the nitrogen component in the wastewater ,
Wherein the second fluid treatment device is configured to inject air in the treated water of the activated sludge tank and microbubble the air in the treated water to supply oxygen in the air into the treated water,
And a second storage space for receiving the treated water sucked from the activated sludge tank is formed in the inside of the activated sludge tank, and a second microbubble generation The body,
Wherein the second micro bubble generating body is installed in the second micro bubble generating body so as to increase the flow rate of the air introduced through the second inflow portion to the second outflow portion so that the second outflow portion is immersed in the treated water, And a second impingement portion which is located apart from the second outflow portion and makes the air jetted from the second nozzle portion collide with the bottom surface, Bubbles in the treated water to supply oxygen in the air into the treated water,
A second microbubble generating body installed at a second overflow outlet side through which the treated water and suspended substances overflowed from the second microbubble generating body are discharged and which is installed so as to be slidable in the vertical direction with respect to the second overflow outlet, A second water level adjusting unit for adjusting an overflow water level of the water level sensor,
A second fluid separator communicating with the second overflow outlet for introducing suspended solids existing on the water surface of the treated water and the treated water of the second storage space and for separating the treated water and the suspended material from each other Including wastewater treatment facilities. A degassing vessel for supplying oxygen to the wastewater brought in from the collecting tank through the first fluid treatment device to allow the nitrogen component contained in the wastewater to be degassed;
An activated sludge tank for supplying aerobic microorganisms and oxygen to the treated water brought in from the degassing tank through the second fluid treatment device to cause organic matter decomposition by the aerobic microorganisms; And
And a sedimentation tank for agglomerating and precipitating sludge contained in the treatment water carried in from the activated sludge tank,
Wherein the first fluid treatment device is configured to inject air into the wastewater into the deasphalting bath and microbubble the air in the wastewater to supply oxygen in the air to the wastewater to degas the nitrogen component in the wastewater ,
Wherein the second fluid treatment device is configured to inject air in the treated water of the activated sludge tank and microbubble the air in the treated water to supply oxygen in the air into the treated water,
And a second storage space for receiving the treated water sucked from the activated sludge tank is formed in the inside of the activated sludge tank, and a second microbubble generation The body,
Wherein the second micro bubble generating body is installed in the second micro bubble generating body so as to increase the flow rate of the air introduced through the second inflow portion to the second outflow portion so that the second outflow portion is immersed in the treated water, And a second impingement portion which is located apart from the second outflow portion and makes the air jetted from the second nozzle portion collide with the bottom surface, Bubbles in the treated water to supply oxygen in the air into the treated water,
The second micro bubble generating device includes:
An adjusting member that is slidably coupled along the upper side surface of the second nozzle unit and adjusts the cross-sectional area of the second outflow unit in accordance with the sliding movement of the second nozzle unit; And a position adjusting portion for moving the second impact portion in the lateral and longitudinal directions,
Wherein the position adjusting unit comprises:
Bubble generating body and a first sliding hole formed along a longitudinal direction of the second micro bubble generating body, an engaging plate coupled to the second impact portion and having a second sliding hole formed along the transverse direction, And a fastening member fastened to the first sliding hole and the second sliding hole at the same time to fasten the height adjusting plate and the coupling plate and fix the position of the second impact portion. The method of claim 10,
Further comprising a plurality of eliminers installed in the second storage space and arranged to be spaced from each other in a direction opposite to the flow direction of the air to remove mist in the second storage space,
The above-
Wherein the first and second flow passages are disposed at a plurality of stages along the flow direction of the air and staggered with respect to the flow direction of the air,
A first eleminator having a flow cross-sectional shape formed in an inverted triangular shape; and a second eleminator positioned behind the first eleminator and having a flow cross-sectional shape formed in a triangular shape. A degassing vessel for supplying oxygen to the wastewater brought in from the collecting tank through the first fluid treatment device to allow the nitrogen component contained in the wastewater to be degassed;
An activated sludge tank for supplying aerobic microorganisms and oxygen to the treated water carried in from the degassing tank to decompose organic matter by the aerobic microorganisms; And
And a sedimentation tank for agglomerating and precipitating sludge contained in the treatment water carried in from the activated sludge tank,
Wherein the first fluid treatment device is configured to inject air into the wastewater sucked from the deaeration tank, microbubble the air in the wastewater, supply oxygen in the air to the wastewater, Degassing,
A first gas supply pipe in which an insertion end in a tubular shape is positioned in the degassing vessel to supply air into the degassing vessel and an end portion to which the air is discharged during operation is immersed in the wastewater; And a first impingement member which is installed so as to be immersed in the wastewater during operation and which causes the air flowing out from the first gas supply pipe to collide with the lower surface so that the air is microbubbed in the wastewater during operation, A third micro bubble generator for supplying oxygen in the wastewater to degas the nitrogen component in the wastewater,
And a first outlet is formed at an upper portion of the first inlet and a second outlet is formed at an upper portion of the first inlet and the first gas supply pipe is inserted and fixed inward, Wherein the first impingement member and the first impingement member are located in the first internal space and the first internal space is communicated with the first internal space to discharge the wastewater and the bubbles or suspended substances in the first internal space, A first mixing chamber in which one outlet is formed and one end connected to the first mixing chamber so as to communicate with the first outlet so that the wastewater and the bubble or floating material in the first inside space are discharged from the first outlet to the outside And a second circulation pipe connected to the first mixing chamber or the first circulation pipe for discharging the waste water from the first discharge port to the first discharge port, And a first buoyancy member for providing buoyancy to the first mixing chamber so that bubbles or suspended matter are discharged. A degassing vessel for supplying oxygen to the wastewater brought in from the collecting tank through the first fluid treatment device to allow the nitrogen component contained in the wastewater to be degassed;
An activated sludge tank for supplying aerobic microorganisms and oxygen to the treated water brought in from the degassing tank through the second fluid treatment device to cause organic matter decomposition by the aerobic microorganisms; And
And a sedimentation tank for agglomerating and precipitating sludge contained in the treatment water carried in from the activated sludge tank,
Wherein the first fluid treatment device comprises:
Air is blown into the wastewater in the deaeration tank, and the air is microbubbed in the wastewater, oxygen in the air is supplied into the wastewater to degas the nitrogen component in the wastewater, A first gas supply pipe which is located in the degassing vessel and supplies air into the degassing vessel and in which an end where the air is discharged during operation is immersed in the wastewater; And a first impingement member immersed in the first gas supply pipe and causing the air flowing out of the first gas supply pipe to collide with a lower surface of the first impingement member so that the air is microbubbed in the wastewater during operation to supply oxygen in the air into the wastewater A third micro bubble generating device for degassing the nitrogen component in the wastewater,
And a first outlet is formed at an upper portion of the first inlet and a second outlet is formed at an upper portion of the first inlet and the first gas supply pipe is inserted and fixed inward, Wherein the first impingement member and the first impingement member are located in the first internal space and the first internal space is communicated with the first internal space to discharge the wastewater and the bubbles or suspended substances in the first internal space, A first mixing chamber in which one outlet is formed and one end connected to the first mixing chamber so as to communicate with the first outlet so that the wastewater and the bubble or floating material in the first inside space are discharged from the first outlet to the outside And a second circulation pipe connected to the first mixing chamber or the first circulation pipe for discharging the waste water from the first discharge port to the first discharge port, And a first buoyancy member for providing buoyancy to the first mixing chamber so that a bubble or a suspended substance is discharged,
Wherein the second fluid treatment device comprises:
Bubbling the air in the treated water of the activated sludge bath and microbubbing the air into the treated water to supply oxygen in the air into the treated water, wherein the tubular insertion end is located in the activated sludge bath A second gas supply pipe which supplies air into the activated sludge bath and in which an end at which the air is discharged during operation is immersed in the treated water; and a second gas supply pipe which is installed apart from the end of the second gas supply pipe, And a second impingement member for causing the air flowing out of the second gas supply pipe to collide with a lower surface of the impingement member so that the air is microbubbed in the process water during operation to supply oxygen in the air into the process water A fourth micro bubble generating device,
Wherein the first and second gas supply pipes are located so as to be partially submerged in the water surface of the treated water in the activated sludge tank, And the second impingement member is located at the insertion end of the second gas supply pipe and communicates with the second inner space laterally to discharge one or a plurality of second outlets And a second mixing chamber having one end connected to the second mixing chamber so as to communicate with the second outlet so that the treated water and the bubbles or suspended substances in the second inner space are separated from the second outlet, A second circulation pipe for discharging the mixed water to the outside of the mixing chamber; and a second circulation pipe for discharging the second circulation pipe to the second mixing chamber or the second circulation pipe, And a second buoyancy member for providing buoyancy to the second mixing chamber so that the treated water and the foamed or suspended matter are discharged from the second outlet. The method according to any one of claims 1, 2, 15 and 16,
Further comprising a bypass line for bypassing all or a portion of the treated water discharged from the activated sludge bath to supply it again to the activated sludge bath. The method according to any one of claims 1, 2, 15 and 16,
Further comprising an anaerobic digester disposed between the activated sludge set and the settling tank for anaerobic digestion and discharging the treated water carried in from the activated sludge set to the settling tank. The method according to any one of claims 1, 2, 15 and 16,
Further comprising an absorber connected to the deaeration tank and microbubbing the ammonia gas flowing out of the first fluid treatment device in water to produce ammonia water. The method of claim 19,
And a malodor processing unit connected to the absorption tower to microbubble the exhaust gas flowing out of the absorption tower to remove odorous substances contained in the exhaust gas.

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