KR20170073405A - Micro bubble pump for water treatment and biogas purification system using the same - Google Patents

Abstract

The present invention relates to a micro bubble pump apparatus for water treatment and a biogas separation and purification system using the micro bubble pump apparatus. The system comprises a rotating unit having a single connecting wing, a body unit including an internal space for receiving the rotating unit, A processing water / gas inflow part communicating with the body part and arranged to introduce the processing water and the biogas into the body part, and a processing water / gas inflow part communicating with one side of the body part, And a discharge portion for discharging the microbubble-like fluid mixed with the biogas and the process water. Therefore, the dissolution amount of carbon dioxide and hydrogen sulfide can be maximized.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a micro bubble pump device for water treatment, and a biogas separation /

The present invention relates to a micro bubble pump device for water treatment and a biogas separation and purification system using the same. More particularly, the present invention relates to a micro bubble pump device for water treatment, To a fine bubble pump device and a purification processing system using the same.

Generally, biogas is obtained from organic wastes with high levels of organic matter, such as livestock manure, food waste, and sludge from sewage treatment plants. Such organic wastes are generated and discharged constantly through human activities and various industrial activities.

Therefore, extracting biogas from organic wastes more efficiently and using it is of great significance in terms of recycling resources. In addition, the problem of energy depletion in the present day is another meaning that it can also play a role of solving the thirst for new alternative energy.

On the other hand, the biogas includes methane gas (CH ₄ , containing about 60 to 70%), carbon dioxide (CO ₂ ), hydrogen sulfide (H ₂ S) and the like. Except for the methane gas contained in biogas, it is regarded as an unnecessary substance that causes problems such as corrosion of equipment and deterioration of efficiency when it is used as fuel. Therefore, in order to use methane gas, there is a further need for a technique for separating and stagnating such unnecessary substances.

Various techniques such as chemical adsorption, pressure swing adsorption (PSA), water washing and membrane methods are being studied for the purification of biogas. However, these methods are still insufficient to obtain high purity methane gas by removing carbon dioxide and hydrogen sulfide. Therefore, it is required to develop a technology for efficiently separating and purifying methane gas, carbon dioxide, and hydrogen sulfide.

Hereinafter, an apparatus for separating and purifying methane gas and other foreign substances contained in the biogas so as to obtain methane gas of higher purity will be described.

On the other hand, Korean Patent Laid-Open No. 10-2012-0084534 and Korean Patent Registration No. 10-1341068 disclose technologies related to the present invention.

(Document 1) Korean Published Patent No. 10-2012-0084534 (Jul. 30, 2012) (Document 2) Korean Patent No. 10-1341068 (December 23, 2013)

In order to separate methane gas contained in the biogas from other impurities, the present invention provides a method for separating methane gas and other impurities from the biogas and the treated water, And it is an object of the present invention to provide a micro bubble pump device for water treatment capable of mixing operation.

Also. It is another object of the present invention to provide a purification processing system using a micro bubble pump device for water treatment capable of separating and purifying methane gas and other impurities using the above-described water treatment microbubble pump device.

Another object of the present invention is to provide a purification processing system using a micro bubble pump apparatus for water treatment capable of collecting high-purity methane gas through separation and purification processes.

It is another object of the present invention to enable energy recycling in that methane gas having high purity can be obtained from biogas and methane gas thus obtained can be utilized where necessary.

The present invention has been made in view of the above problems, and it is an object of the present invention to provide an apparatus and method for controlling the same.

In accordance with one aspect of the present invention, there is provided a rotating unit having a wing of a single connection shape. A body portion including an inner space for seating the rotating portion; A treatment water / gas inflow part communicating with one side of the body part and arranged to introduce treatment water and biogas into the body part; And a discharge portion for discharging the micro bubble-shaped fluid mixed with the biogas and the process water in the body by the rotation of the rotating portion, the discharge portion being communicated with one side of the body portion, Device is provided.

In the present invention, it is preferable that the apparatus further includes an additional gas inflow portion disposed inside the body portion and arranged to introduce the biogas into the body portion in different directions.

In the present invention, it is preferable that the wings of the single connection shape are formed along the outer circumferential surface of the rotating body and have a continuously curved shape in which 'S' continuously extends.

In the present invention, the additional gas inlet may include: a hollow pipe member formed corresponding to the single connection wing; And a plurality of gas inlets formed in communication with the tubular member and arranged to inject the biogas into the rotating portion in different directions.

In the present invention, said additional gas inlet comprises a first additional gas inlet formed above said single connection wing and a second additional gas inlet formed laterally of said single connection wing desirable.

In the present invention, a gas supply unit for supplying the biogas to the treated water / gas inlet and the additional gas inlet; A process water supply unit for supplying the process water to the process water / gas inlet; A storage unit for storing the fluid discharged through the discharge unit; And a discharge unit for discharging the fluid stored in the storage unit to the outside.

In the present invention, the treated water / gas inlet may include a gas inlet member into which the biogas flows; A process water inflow member into which the process water flows; And a mixing member connected to the treatment water inflow member and the gas inflow member, for mixing the treated water and the biogas into an inlet of the body part.

In the present invention, it is preferable to further include a connecting member communicating with the treated water inflow member, the gas inflow member, and the mixing member, wherein the cross-sectional area of the connecting member is configured to be smaller than the cross- desirable.

In the present invention, one end is fixed to an open side where the connecting member and the gas inflow member communicate with each other, and an open / close member for selectively shielding the open face to prevent backward flow of the process water to the gas inflow member .

According to another aspect of the present invention, there is provided a method of mixing a microbubble with a microbubble by dissolving a foreign substance contained in a biogas in treated water through a mixing operation using a rotating body having a single connection- A micro bubble pump device according to any one of claims 1 to 9 for generating a fluid of the form; And a post-treatment device for separating and stagnating methane gas and the impurities from the microbubble-shaped fluid, and a biogas separation / purification treatment system using the microbubble pump for water treatment.

In the present invention, the post-treatment apparatus may further include: a separation device for separating the methane gas and other impurities from the fluid in the form of fine bubbles; A storage device for collecting and storing the methane gas; And a treatment device for collecting and treating impurities other than the above.

In the present invention, it is preferable that the micro bubble pump apparatus is configured to recover and use the water generated in the treatment apparatus as the treated water.

In the present invention, it is preferable that the wings of the single connection shape are configured to have a continuously curved shape in which 'S' continuously extends.

The micro bubble pump device for water treatment according to the present invention and the purification treatment system using the same provide the following effects.

The present invention can maximize the amount of dissolved carbon dioxide and hydrogen sulfide by maximizing the contact between treated water and carbon dioxide and hydrogen sulfide by mixing biogas and treated water by mechanical operating elements.

Further, the present invention separates and purifies methane gas and other impurities from the fine bubbles obtained through the mixing operation of the water treatment microbubble pumping apparatus to collect and provide methane gas of high purity and provides it to a place where it is needed, A cost saving effect can be obtained.

The effects of the present invention are not limited to those mentioned above, and other effects not mentioned can be clearly understood by those skilled in the art from the following description.

BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a front view for explaining a water bubble pump apparatus for water treatment according to an embodiment of the present invention; Fig.
Fig. 2 is a side view for explaining the pumping unit of Fig. 1; Fig.
3 is a cross-sectional view for explaining another embodiment of the inlet of Fig.
FIG. 4 is a perspective view and an exploded perspective view illustrating the pumping unit of FIG. 1; FIG.
FIG. 5 is a partial perspective view for explaining an additional gas inlet 140 of the pumping unit of FIG. 1; FIG.
6 is a view for explaining a purification processing system using a micro bubble pump for water treatment according to an embodiment of the present invention.

The description of the present invention is merely an example for structural or functional explanation, and the scope of the present invention should not be construed as being limited by the embodiments described in the text. That is, the embodiments are to be construed as being variously embodied and having various forms, so that the scope of the present invention should be understood to include equivalents capable of realizing technical ideas. Also, the purpose or effect of the present invention should not be construed as limiting the scope of the present invention, since it does not mean that a specific embodiment should include all or only such effect.

Meanwhile, the meaning of the terms described in the present application should be understood as follows.

The terms "first "," second ", and the like are intended to distinguish one element from another, and the scope of the right should not be limited by these terms. For example, the first component may be referred to as a second component, and similarly, the second component may also be referred to as a first component.

It is to be understood that when an element is referred to as being "connected" to another element, it may be directly connected to the other element, but there may be other elements in between. On the other hand, when an element is referred to as being "directly connected" to another element, it should be understood that there are no other elements in between. On the other hand, other expressions that describe the relationship between components, such as "between" and "between" or "neighboring to" and "directly adjacent to" should be interpreted as well.

It is to be understood that the singular " include " or "have" are to be construed as including the stated feature, number, step, operation, It is to be understood that the combination is intended to specify that it does not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, or combinations thereof.

In each step, the identification code (e.g., a, b, c, etc.) is used for convenience of explanation, the identification code does not describe the order of each step, Unless otherwise stated, it may occur differently from the stated order. That is, each step may occur in the same order as described, may be performed substantially concurrently, or may be performed in reverse order.

All terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs, unless otherwise defined. Commonly used predefined terms should be interpreted to be consistent with the meanings in the context of the related art and can not be interpreted as having ideal or overly formal meaning unless explicitly defined in the present application.

1 is a front view for explaining a water bubble pump apparatus for water treatment according to an embodiment of the present invention.

Referring to FIG. 1, the water bubble pump apparatus includes a pumping unit 10 for mixing biogas (BG) and treated water ML; A process water supply unit (20) for allowing the process water (ML) to flow into the pumping unit (10) at a constant pressure; A gas supply unit (30) for allowing the biogas (BG) to flow uniformly into the pumping unit (10); A storage unit (40) for storing the micro bubble-like fluid discharged from the pumping unit (10); And a discharge unit (50) for discharging the fluid stored in the storage unit (40) to the outside.

The pumping unit 10 mixes the biogas BG and the treatment water ML to produce a micro bubble-like fluid. Such a mixing operation dissolves a water-soluble gas such as hydrogen sulfide or carbon dioxide contained in the biogas BG into the treatment water ML, which corresponds to a pretreatment operation for purifying the biogas BG. Prior to the explanation of the other constitution, the pumping unit 10 will be described in more detail.

The pumping unit 10 according to the embodiment of the present invention can be implemented in various embodiments according to the design. Hereinafter, an inlet IN into which the biogas BG and the treated water ML are introduced, And a discharge port (OUT) through which a fine bubble-shaped fluid generated through a mixing operation is discharged, respectively.

Fig. 2 is a side view for explaining the pumping unit 10 of Fig.

Referring to FIG. 2, the pumping unit 10 receives the biogas BG and the treated water ML through the treated water / gas inlet 11, 12, and 13. The treated water / gas inflow portions 11, 12, 13 include a treated water inflow member 11 into which the treated water ML flows; A gas inflow member 12 into which the biogas BG flows; The treatment water inflow member 11 and the gas inflow member 12 are connected to each other and the treatment water ML flowing in from the treatment water inflow member 11 and the biogas And a mixing member (13) for mixing the mixture (BG) into the inlet (IN).

The treatment water inflow member 11 may be configured as a pipe for communicating the treated water ML to the mixing member 13 and a hollow pipe communicating with the mixing member 13.

The gas inflow member 12 is configured to communicate the biogas BG to the mixing member 13 and may be a hollow pipe communicating with the mixing member 13.

The mixing member 13 is connected to the process water inflow member 11 and the gas inflow member 12 and is connected to the process water ML flowing from the process water inflow member 11 and the gas inflow member 11, 12 and the biogas BG are introduced into the inlet IN at the same time.

The pumping unit 10 mixes the biogas BG and the treated water ML that are simultaneously transferred through the inlet IN and mixes the microbubble- (OUT). As shown in the drawing, the biogas BG and the treated water ML are simultaneously introduced into the pumping unit 10 through the inlet IN, and through the biogas BG and the biogas BG, It is possible to maximize the mixing effect of the treated water ML.

3 is a cross-sectional view for explaining another embodiment of the inflow portion of FIG. For the convenience of explanation, the same reference numerals are applied to the same components as those of Fig. 2, and the embodiment of Fig. 3 has the connecting member 14 and the opening and closing member 15 added to the embodiment of Fig. 2 .

3, the inflow portions 11, 12, 13, 14 and 15 have a connecting member 14 having a cross sectional area smaller than the cross sectional area of the process water inflow member 11; An opening and closing member 15 for preventing the treated water ML from flowing back to the gas inflow member 12 while the treated water ML is transferred to the mixing member 13 through the connecting member 14, .

The connection member 14 is communicatively connected between the treatment water inflow member 11 and the mixing member 13 and has a cross sectional area smaller than the cross sectional area of the treatment water inflow member 11. [ Therefore, the treated water ML can have a higher flow rate when passing through the process water inflow member 11 when passing through the connecting member 14. [ The pressure inside the connecting member 14 is lowered by the Bernoulli's law so that the biogas BG in the gas inflow member 12 having a relatively high pressure flows from the gas inflow member 12 to the connection It is possible to more efficiently flow into the member 14 and to further increase the mixing effect of the biogas BG and the treated water ML due to the fast flow rate of the treated water ML.

The opening and closing member 15 is formed with one end fixed to an opening GB on which the gas inflow member 12 and the connecting member 14 are communicated. The opening and closing member 15 may be formed of a member configured to be opened and closed only in one direction like a one way valve and is formed to have substantially the same size as the opening face GB, (GB) can be opened and closed. Therefore, since the opening and closing member 15 is opened and closed only in one direction, it is possible to prevent the process water ML from flowing back into the gas inflow member 12 from the connecting member 14. [

The inflow portions 11, 12, 13, 15 and 15 of the pumping unit 10 according to the embodiment of the present invention increase the flow rate of the treated water ML and increase the mixing effect with the biogas BG It is possible to give. The opening and closing member 15 can be configured to selectively shield the opening GB.

4 is a perspective view and an exploded perspective view for explaining the pumping unit 10 of Fig.

Referring to FIG. 4, the pumping unit 10 includes a rotating part 110 in the form of an impeller having a spiral wing 111; A housing member 120 including an inner space for seating the rotation unit 110; And a lid member 130 for covering the rotation unit 110 after the rotation member 110 is mounted on the housing member 120.

The rotation unit 110 includes: a rotating body 112 having an outer circumferential surface having an area where the helical wing 111 can be formed; And a helical wing 111 formed along the outer circumferential surface of the rotating body 112. Preferably, the helical wings 111 are formed in a single connection shape in which the cross-sections of the wings are continuously connected. The spiral wing 111 in the practice of the present invention is configured to have a continuously curved shape in which 'S' continuously extends.

In the case of the helical wing 111 formed in the rotary part 110, it is possible to reduce the circulation flow generated in the wing, so that the damage and wear of the wing of the rotary part 110 can be reduced . The shape of the helical wing 111 can be changed according to the design, and any shape that can reduce damage and wear to the wing and increase the mixing effect can be included.

The housing member 120 includes an internal space for receiving the rotation unit 110. The housing member 120 and the lid member 130 are coupled to each other after the rotation unit 110 is seated in the internal space. do. Hereinafter, the housing member 120 and the lid member 130 are collectively referred to as body portions 120 and 130 for convenience of explanation.

 The housing member 120 is formed with the inlet IN to allow the biogas BG and the treated water ML to flow into the internal spaces of the body portions 120 and 130, And 130, the discharge port OUT is formed to discharge the fine bubble-shaped fluid generated through the mixing operation.

The pumping unit 10 performs a mixing operation by receiving the biogas BG and the treatment water ML introduced through the inlet IN and discharging the generated fine bubble- It is possible to discharge through the outlet OUT.

The pumping unit 10 according to an embodiment of the present invention includes an additional gas inlet 140 for injecting the biogas BG in different directions with respect to the rotation unit 110, The description will be made with reference to FIG.

5 is a partial perspective view for explaining the additional gas inlet 140 of the pumping unit 10 of FIG.

Referring to FIG. 5, the pumping unit 10 has the spiral wing 111 disposed therein, as shown in FIG. 4, and the additional gas inlet 140 is disposed near the spiral wing 111 do.

The additional gas inlet 140 is for introducing the biogas BG in different directions inside the body 120 and 130. The additional gas inlet 140 may include a first addition formed above the helical wing 111, A gas inlet 141; And a second additional gas inlet 142 formed at the side of the helical wing 111.

The first additional gas inlet 141 is for injecting the biogas BG onto the top surface of the helical wing 111 and has a hollow tubular member (not shown) formed above the helical wing 111 And a gas inlet (UG) communicating with the tube member (GG). Here, the number of the gas inlet UG is two, and the number and shape of the gas inlet UG may vary depending on the design.

The second additional gas inlet 142 is formed on a side of the helical vane 111 and is configured to inject the biogas BG onto the side of the helical vane 111, And includes a pipe member GG and a gas inlet US as well as the pipe 141.

Although not shown in the drawing, the first and second additional gas inlets 141 and 142 are preferably designed to receive the biogas BG, 30).

The first additional gas inlet portion 141 and the second additional gas inlet portion 142 are disposed on different surfaces with respect to the helical wing 111. Therefore, (US) are also arranged to face different directions with respect to the helical wings (111).

Such a configuration can eventually enable the biogas BG to be injected in different directions from the helical vanes 111. This results in a mixing effect of the biogas BG and the treated water ML, Can be maximized. The maximization of the mixing effect means that the contact between the biogas (BG) and the treated water (ML) can be maximized. This means that the carbon dioxide and hydrogen sulfide contained in the biogas (BG) It means that the contact of the number ML is maximized to maximize the amount of carbon dioxide and hydrogen sulfide dissolved in the treated water ML.

Meanwhile, the first additional gas inlet 141 and the second additional gas inlet 142 may be designed to be inclined obliquely in a direction in which the rotation unit 110 rotates. In such a configuration, the biogas BG injected from the first additional gas inlet 141 and the second additional gas inlet 142 can assist the rotation of the rotation unit 110 . Therefore, the load such as the power used by the rotation unit 110 can be reduced through such a configuration.

5, the additional gas inlet 140 includes the first additional gas inlet 141 and the second additional gas inlet 142. However, the number, shape, and position of the additional gas inlet 140 are limited .

The pumping unit 10 according to the embodiment of the present invention mixes the biogas BG and the treated water ML using the rotating unit 110 having the helical vanes 111, It is possible to maximize the mixing effect through the constitution of the additional gas inlet 140 having the direction.

1, the process water supply unit 20 is configured to allow the treated water ML to flow into the inlet IN of the pumping unit 10 at a constant pressure, ML and a process water pressure portion 22 for regulating the pressure of the supplied process water ML. A treatment water pump, a regulator, and the like may be additionally installed at the previous stage of the treated water supply unit 20 in order to smoothly supply the treated water ML.

The gas supply unit 30 is configured to uniformly introduce the biogas BG into the gas inlet member 12 and the additional gas inlet 140 of the pumping unit 10, A biogas regulator 32 for regulating the supply amount of the biogas BG delivered from the biogas inlet 31, And a gas delivery unit 33 for delivering the biogas BG to the pumping unit 10. An air pump and a regulator may be additionally installed at a previous stage of the gas supply unit 30 to smoothly supply the biogas BG.

The storage unit (40) is a structure for storing a fine bubble-like fluid discharged from the pumping unit (10). Although not shown in the drawing, a member such as a screw that rotates at a constant speed may be mounted in the storage unit 40, thereby making it possible to more evenly mix the fluid of the fine bubble-like fluid.

The discharge unit 50 is configured to discharge the fluid stored in the storage unit 40 to the outside. The discharge unit 50 includes a discharge pressure regulator 51 for regulating the pressure of the discharged fluid, And a discharge amount adjusting portion 52 for adjusting the discharge amount.

The micro bubble pump apparatus for water treatment according to the embodiment of the present invention performs the mixing operation by bringing the biogas BG and the treated water ML into contact with each other as much as possible so that the maximum amount of carbon dioxide and hydrogen sulfide are supplied to the treated water ML It is possible to obtain a fine bubble-like fluid sufficiently dissolved in the fluidized bed.

6 is a view for explaining a purification processing system using a micro bubble pump for water treatment according to an embodiment of the present invention.

Referring to FIG. 6, the purification system includes a gas storage device 410 storing the biogas BG; A first buffer tank device 1 for removing oil and moisture from the biogas BG delivered from the gas storage device 410; A micro bubble pump device 420 for mixing the biogas BG and the treated water ML to produce a micro bubble type fluid; A separation device 430 for storing the micro bubble-shaped fluid generated by the micro bubble pump device 420 and separating methane gas and other impurities; A second buffer tank (2) for removing oil / moisture from the methane gas separated by the separator (430); A drying device 440 for drying the methane gas discharged from the second buffer tank 2; And a compression storage device 3 for compressing and storing the methane gas discharged from the drying device 440.

Next, a pumping device 4 for pumping water containing carbon dioxide and hydrogen sulfide, which are impurities other than the methane gas separated by the separation device 430; And a gas separator 450 for separating carbon dioxide and hydrogen sulfide from the fluid delivered from the pumping device 4. And a water supply device 5 for supplying water to the gas separator 450.

Hereinafter, a method for purifying the biogas (BG) will be described.

First, the biogas BG stored in the gas storage device 410 is transferred to the first buffer tank device 1. The first buffer tank device 1 removes oil and moisture contained in the biogas BG and the microbubble pumping device 420 mixes the biogas BG and the treated water ML, Thereby generating a bubble-like fluid. The generated fine bubble-like fluid is collected by the separator 430 having a pressure of 4 bar or more through the acid generator unit SG.

Methane gas having a specific gravity of 0.554 is formed on the upper part of the separator 430, and carbon dioxide having a specific gravity of 1.529 and hydrogen sulfide having a specific gravity of 1.92 are formed in a lower layer. And, in case of relatively light methane gas, it floats on the surface of the water. The rising methane gas is dried in the drying apparatus 440 after the oil / water is removed from the second buffer tank 2. Through the drying process, the methane gas is dehumidified by 99%, and the dehumidified methane gas is stored in the compression storage device 3 and is supplied to a place where methane gas is required.

On the other hand, the water retained in the separation device 430 is transferred to the gas separation device 450 by the pumping device 4. The gas separator 450 sequentially passes through a first gas separator 451 having a pressure of 3 bar lower than the pressure of the separator 430 and a second gas separator 452 having an atmospheric pressure. The dissociation of carbon dioxide is further activated in the first gas separator 451, and the carbon dioxide and hydrogen sulfide are separated again from the second gas separator 452. Then, the carbon dioxide thus separated is discharged to the atmosphere through the blower device 6.

On the other hand, the water from which the carbon dioxide and hydrogen sulfide are removed in the second gas separator 452 can be recovered by the fine bubble pumping device 420 and recycled.

The purification processing system using the micro bubble pump for water treatment according to the embodiment of the present invention mixes the biogas (BG) and the treated water (ML) using a micro bubble pumping device, It is possible to separate methane gas and other foreign substances through fine bubbles. In addition, it is possible to collect the methane gas thus separated and provide it to a necessary place.

As described above, the micro bubble pump according to the embodiment of the present invention can generate fine bubbles to separate methane gas and other foreign substances, and thereby it is possible to obtain high purity methane gas.

The embodiments and the accompanying drawings described in the present specification are merely illustrative of some of the technical ideas included in the present invention. Therefore, it is to be understood that the embodiments disclosed herein are not for purposes of limiting the technical idea of the present invention, but rather are not intended to limit the scope of the technical idea of the present invention. It will be understood by those of ordinary skill in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

10: pumping unit 20: treated water supply unit
30: gas supply unit 40: storage unit
50: exhaust unit

Claims (13)

A rotating part having wings of a single connection shape;
A body portion including an inner space for seating the rotating portion;
A treatment water / gas inflow part communicating with one side of the body part and arranged to introduce treatment water and biogas into the body part; And
And a discharging portion communicating with one side of the body portion and discharging a fine bubble-like fluid mixed with the biogas and the process water in the body portion by the rotation of the rotating portion
Micro bubble pump device for water treatment.
The method according to claim 1,
And an additional gas inflow portion disposed inside the body portion and arranged to introduce the biogas into the body portion in different directions
Micro bubble pump device for water treatment.
The method according to claim 1,
The wings of the single connection shape are formed along the outer circumferential surface of the rotating body, and the 'S' is configured to have a continuously curved shape continuously extending
Micro bubble pump device for water treatment.
3. The method of claim 2,
Wherein the additional gas inlet comprises:
A hollow tube member formed corresponding to the wings of the single connection shape; And
And a plurality of gas inlets communicating with the tubular member and arranged to inject the biogas into the rotating portion in different directions
Micro bubble pump device for water treatment.
3. The method of claim 2,
Wherein the additional gas inlet comprises:
A first additional gas inlet formed above the wings of the single connection shape,
And a second additional gas inlet formed laterally of the wings of the single connection configuration
Micro bubble pump device for water treatment.
3. The method of claim 2,
A gas supply unit for supplying the biogas to the treated water / gas inlet and the additional gas inlet;
A process water supply unit for supplying the process water to the process water / gas inlet;
A storage unit for storing the fluid discharged through the discharge unit; And
And a discharge unit for discharging the fluid stored in the storage unit to the outside
Micro bubble pump device for water treatment.
The method according to claim 1,
Wherein the treated water /
A gas inflow member into which the biogas flows;
A process water inflow member into which the process water flows; And
And a mixing member connected to the treated water inflow member and the gas inflow member for mixing the treated water and the biogas into an inlet of the body portion,
Micro bubble pump device for water treatment.
8. The method of claim 7,
Further comprising a connecting member communicating with the process water inflow member, the gas inflow member, and the mixing member,
Sectional area of the connecting member is smaller than a cross-sectional area of the process water inflow member
Micro bubble pump device for water treatment.
9. The method of claim 8,
Further comprising an opening and closing member for selectively shielding the opening to prevent reverse flow of the process water to the gas inlet member, wherein the gas inlet member is formed with one end fixed to an opening face communicating with the connecting member and the gas inlet member,
Micro bubble pump device for water treatment.
The micro-bubble-like fluid according to any one of claims 1 to 9 for producing a fine bubble-like fluid by dissolving the foreign substances contained in the biogas in the treated water through a mixing operation by a rotating body having a single- A bubble pump device; And
And a post-treatment device for separating and stagnating the methane gas and the impurities from the fluid in the form of fine bubbles
Biogas separation and purification system using micro bubble pump for water treatment.
11. The method of claim 10,
The post-
A separation device for separating the methane gas and other impurities from the microbubble-shaped fluid;
A storage device for collecting and storing the methane gas; And
And a treatment device for collecting and treating impurities other than the above
Biogas separation and purification system using micro bubble pump for water treatment.
11. The method of claim 10,
Wherein the micro bubble pump device is configured to recover and use the water produced in the treatment device as the treated water
Biogas separation and purification system using micro bubble pump for water treatment.
11. The method of claim 10,
The wings of the single connection configuration are configured to have a continuously curved shape in which 'S'
Biogas separation and purification system using micro bubble pump for water treatment.

Images