KR20130067954A - Apparatus for generating micro bubbles - Google Patents

Apparatus for generating micro bubbles Download PDF

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KR20130067954A
KR20130067954A KR20110135027A KR20110135027A KR20130067954A KR 20130067954 A KR20130067954 A KR 20130067954A KR 20110135027 A KR20110135027 A KR 20110135027A KR 20110135027 A KR20110135027 A KR 20110135027A KR 20130067954 A KR20130067954 A KR 20130067954A
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South Korea
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waste water
space
bubbles
air
crushing
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KR20110135027A
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Korean (ko)
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KR101324133B1 (en
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장현진
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장현진
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    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F3/00—Biological treatment of water, waste water, or sewage
    • C02F3/02—Aerobic processes
    • C02F3/12—Activated sludge processes
    • C02F3/20—Activated sludge processes using diffusers
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2201/00—Apparatus for treatment of water, waste water or sewage
    • C02F2201/002—Construction details of the apparatus
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W10/00—Technologies for wastewater treatment
    • Y02W10/10—Biological treatment of water, waste water, or sewage

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  • Life Sciences & Earth Sciences (AREA)
  • Biodiversity & Conservation Biology (AREA)
  • Microbiology (AREA)
  • Hydrology & Water Resources (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)

Abstract

PURPOSE: A micro bubble generator of a water disposal plant is provided to increase disposal efficiency, and to reduce installation cost by a simple structure. CONSTITUTION: A micro bubble generator of a water disposal plant is equipped with a housing (210) comprising a pipe. The housing is equipped with an orifice (240) inside, is divided into a pressurizing space (211) toward a waste water inflowing part (220) and a crushing space (212) toward a waste water discharging part (260). The waste water inflowing part and an air inflowing part are formed in the pressurizing space. The waste water circulated by a pressurizing pump is flowed in by the waste water inflowing part. The outside air is flowed in by the air inflowing part (230). The waste water containing bubbles due to the outside air is flowed into the crushing space through the orifice, and discharged through the waste water discharging pipe. A crushing part (250) is installed in the crushing space to crush the bubbles to micro bubbles. The crushing part is formed by wires (251) in a spiral shape, and multiple crushing cutters (252) are fixed on the wires with a same interval. [Reference numerals] (AA) Air

Description

수처리장의 미세기포 발생장치{Apparatus for generating micro bubbles}Apparatus for generating micro bubbles in water treatment plant

본 발명은 수처리장의 미세기포 발생장치에 관한 것으로, 미세기포를 발생시켜 오폐수를 정화시키도록 한 수처리장의 미세기포 발생장치에 관한 것이다.
The present invention relates to an apparatus for generating microbubbles in a water treatment plant, and more particularly, to an apparatus for generating microbubbles in a water treatment plant for purifying wastewater by generating microbubbles.

일반적으로 오폐수를 처리하는 수처리장에서는 기포에 의해 산소를 오폐수에 공급함으로써 처리하게 되는데, 이러한 기포를 발생시키는 기술의 일예를 도1에 도시하였다.Generally, in a water treatment plant for treating waste water, oxygen is supplied to waste water by bubbles, and an example of a technique for generating such bubbles is illustrated in FIG. 1.

오폐수가 들어있는 처리조(10) 내의 하측에 다수개의 기포분사노즐(13)이 구비되고, 처리조(10)의 외부에 설치된 블로워(11)로부터 가압된 공기가 이송관(12)을 통하여 상기 기포분사노즐(13)로 분사됨으로써 기포가 상승하는 구조이다.A plurality of bubble spray nozzles 13 are provided below the treatment tank 10 in which waste water is contained, and the air pressurized from the blower 11 installed outside the treatment tank 10 is transferred through the transfer pipe 12. The bubble rises by being sprayed to the bubble spray nozzle 13.

처리조(10)의 오폐수에는 호기성 미생물이 투입되어 있어서 오폐수와 호기성 미생물이 기포와 반응하여 오폐수를 처리하게 된다.Aerobic microorganisms are introduced into the wastewater of the treatment tank 10 so that the wastewater and the aerobic microorganism react with bubbles to treat the wastewater.

그런데, 이러한 종래의 기술에 의해 발생되는 기포의 크기는 40~50㎛이상으로 기포의 입경이 비교적 크기 때문에 기포의 변형이 쉽게 온다. By the way, since the size of the bubble generated by such a conventional technique is more than 40 ~ 50㎛ particle size of the bubble is relatively large, the deformation of the bubble easily comes.

즉, 처리조(10)의 깊이가 보통 4.5~8,5m의 깊이를 가지게 되어 기포분사노즐(13)로부터 근접한 위치에는 기포의 형태를 유지하지만, 처리조(10)내에서 긴 거리를 상승하면서 기포가 합쳐져서 큰 기포를 형성하게 되므로 오폐수와 호기성 미생물에 접촉하는 면적이 그만큼 작아져 오폐수 처리의 효율성이 매우 떨어진다.That is, the depth of the treatment tank 10 is usually 4.5-8,5m to maintain the form of bubbles in the position close to the bubble spray nozzle 13, while increasing the long distance in the treatment tank 10 Since the bubbles are combined to form a large bubble, the area of contact with the wastewater and aerobic microorganisms is so small that the efficiency of wastewater treatment is very low.

또한, 기포가 크거나 또는 상승하면서 합쳐져 커지는 경우에 처리조(10)내에서 기포의 분포도가 고르지 못하고 지협적으로 집중되므로 효율성에서 매우 낮으며, 이로인해 산소의 용존율이 낮아지므로 생물학적 반응조에서 처리효율이 낮은 단점이 있다.
In addition, in the case where the bubbles are large or increase and merge with each other, the distribution of bubbles in the treatment tank 10 is unevenly and concentrated centrally, which is very low in efficiency, and thus the oxygen dissolution rate is lowered, thereby treating in the biological reactor. The disadvantage is low efficiency.

본 발명은 종래의 이러한 문제점을 해결하기 위하여 관체 내부에 기포를 분쇄할 수 있는 구조물을 설치하여 관체 내부를 통과하여 순환하는 오폐수에 미세기포를 직접 접촉시킴으로써 수처리의 효율을 높이도록 한 수처리장의 미세기포 발생장치를 제공하는데 그 목적이 있다.
The present invention is to solve the problems of the prior art by installing a structure that can be crushed bubbles inside the tube body by directly contacting the microbubble to the waste water circulating through the tube to increase the efficiency of the water treatment plant fine The object is to provide a bubble generator.

상기의 목적을 달성하기 위한 본 발명은 The present invention for achieving the above object

관체로 된 하우징의 내측에 오리피스가 구비되어 가압공간과 분쇄공간으로 분리되며, 상기 가압공간에는 오폐수유입부와 공기유입부가 형성되어 오폐수유입부를 통해서는 가압펌프로부터 순환된 오폐수가 유입되고, 공기유입부를 통해서는 외부로부터 공기가 유입되어 그 유입된 공기에 의해 기포가 포함된 오폐수가 오리피스를 통해 분쇄공간으로 유입되어 오폐수유출관을 통해 배출되며, 상기 분쇄공간에는 기포를 미세기포로 분쇄하는 분쇄부가 설치되되, 상기 분쇄부는 선재가 나선형태로 연속하여 형성되고, 상기 선재에는 기포를 분쇄하기 위한 다수개의 분쇄날이 등간격으로 고정설치되는 것을 특징으로 한다.
An orifice is provided inside the housing made of a tubular body and separated into a pressurized space and a pulverized space. A waste water inlet and an air inlet are formed in the pressurized space, and the waste water circulated from the pressurized pump is introduced through the waste water inlet. Through the air, the air is introduced from the outside, and the waste water containing bubbles is introduced into the pulverization space through the orifice and discharged through the waste water outlet pipe through the introduced air, and the pulverization part is installed in the pulverization space to crush the bubbles into fine bubbles. Wherein, the crushing portion is a wire rod is formed continuously in a spiral form, characterized in that the wire rod is fixed to a plurality of grinding blades for crushing the bubble at equal intervals.

이와같은 구성에 의하여 본 발명은 관체를 통과하는 오폐수에 미세기포를 직접 분사하여 접촉시킴으로써 처리효율을 높임과 아울러 그 구조 또한 매우 단순하여 설치비용이 저렴한 효과가 있다.
By such a configuration, the present invention increases the treatment efficiency by directly injecting microbubbles into the wastewater passing through the pipe, and the structure thereof is also very simple, thereby lowering the installation cost.

도1은 종래의 오폐수 처리조의 구조를 보인 도.
도2는 본 발명에 의한 수처리장의 미세기포 발생장치를 보인 단면도.
도3은 도2의 A-A'부분의 단면도.
도4 및 도5는 분쇄부의 다른 형태를 보인 도.1 is a view showing the structure of a conventional wastewater treatment tank.
Figure 2 is a cross-sectional view showing a microbubble generating device of a water treatment plant according to the present invention.
3 is a sectional view taken along the line AA 'of FIG.
4 and 5 show another form of the grinding unit.

본 발명은 첨부된 도면 2내지 5까지를 참조하여 상세히 설명한다.The present invention will be described in detail with reference to the accompanying drawings 2 to 5.

도2는 본 발명의 미세기포 발생장치(200)의 구조를 보인 도로서, 관체로 된 하우징(210)의 일측에는 가압펌프(300)에 의해 압력을 가진 오폐수를 유입받기 위한 오폐수유입부(220)가 형성되고, 타측에는 오폐수유출부(260)가 형성되어 있으며, 하우징(210)의 내측으로는 오리피스(240)가 설치되어 오폐수유입부(220)쪽으로는 가압공간(211)이 형성되고, 오폐수유출부(260)쪽으로 분쇄공간(212)이 분리되어 형성된다.2 is a view showing the structure of the micro-bubble generating device 200 of the present invention, the waste water inlet 220 for receiving the waste water with pressure by the pressure pump 300 on one side of the housing 210 made of a tubular body ) Is formed, and the other side of the waste water outlet 260 is formed, the orifice 240 is installed inside the housing 210, the pressurized space 211 is formed toward the waste water inlet 220, The pulverization space 212 is separated and formed toward the wastewater outlet 260.

가압공간(211)의 상측으로는 외부의 공기를 유입받기 위한 공기유입부(230)가 형성되어 있으며, 분쇄공간(212)의 내측에는 기포를 미세하게 분쇄하기 위한 분쇄부(250)가 설치되어 있다.An air inlet 230 for receiving external air is formed above the pressurized space 211, and a crushing unit 250 for finely crushing bubbles is installed inside the crushing space 212. have.

상기 분쇄부(250)는 선재(251)가 코일 스프링 형태와 유사하게 나선형태로 분쇄공간(212)의 내측 일단부터 타단까지 연속하여 형성되며, 상기 선재(251)에는 뾰족한 돌기형태의 분쇄날(252)이 등간격으로 연속하여 형성된 구조를 갖는다.The crushing unit 250 is a wire rod 251 is formed continuously from the inner end to the other end of the pulverizing space 212 in a spiral shape similar to the coil spring form, the wire rod 251 has a sharp protrusion-shaped grinding blade ( 252 has a structure continuously formed at equal intervals.

분쇄날(252)은 A-A'부분의 단면도(도3)와 같이 내측방향으로 향해 형성될 수 도 있고, 다른 형태로는 오리피스(240)가 형성된 부위를 향하여 형성될 수도 있다.The grinding blade 252 may be formed toward the inward direction as shown in the cross-sectional view of the A-A 'portion, or may be formed toward the portion where the orifice 240 is formed.

또한, 상기 선재(251)는 하우징(210)의 내측벽에 근접하여 설치되거나 도3에서와 같이 약간의 간격을 두고 형성될 수 있을 것이다.
In addition, the wire rod 251 may be installed close to the inner wall of the housing 210 or may be formed at a slight interval as shown in FIG.

이러한 구조를 통해 가압펌프(300)로부터 압력을 가지고 오폐수유입부(220)로 유입되는 오폐수는 가압공간(211)으로 유입되어 공기유입부(230)를 통해 유입되는 공기와 혼합되고, 공기가 혼합된 오폐수는 오리피스(240)를 통과하면서 분쇄공간(212)으로 분사되는 형태로 유입된다.Through this structure, the wastewater introduced into the wastewater inlet 220 with the pressure from the pressure pump 300 is introduced into the pressurized space 211 and mixed with the air introduced through the air inlet 230, and the air is mixed. The waste water is introduced into the form to be injected into the grinding space 212 while passing through the orifice 240.

이때 오피리스(240)를 통한 강한 분사력에 의해 오폐수에 40~50㎛크기의 기포가 형성되며, 분쇄부(250)의 선재(251) 사이를 통과하면서 분쇄날(252)에 의해 기포가 10~20㎛미세기포로 분쇄되어 쪼개지며, 오폐수는 그 단면이 원형 또는 타원형으로 된 선재(251)를 통과하게 되므로 저항성이 매우 낮아 그 압력은 크게 저하되지 않는다In this case, bubbles of size 40 to 50 μm are formed in the waste water by the strong spraying force through the opiris 240, and bubbles 10 to 10 by the grinding blade 252 while passing between the wire rods 251 of the grinding unit 250. It is crushed and split into 20 ㎛ microporous paper, and waste water passes through the wire rod 251 whose cross section is circular or elliptical, so the resistance is very low and the pressure is not greatly reduced.

이러한 미세기포의 형성은 가압펌프(300)의 가압력과 오리피스(240)의 크기, 그리고 분쇄부(250)의 길이에 따라 결정될 수 있는데, 분쇄공간(212)의 길이와 분쇄부(250)의 길이가 길면 길수록 미세기포의 형성이 원활해짐과 아울러 오폐수와의 접촉면적 및 접촉시간이 증대되어 처리의 효율성이 높아지게 되는 것이다.The formation of such micro bubbles may be determined according to the pressing force of the pressure pump 300, the size of the orifice 240, and the length of the crushing unit 250, and the length of the crushing space 212 and the length of the crushing unit 250. The longer the length is, the smoother the formation of microbubbles and the increased contact area and contact time with the waste water, thereby increasing the treatment efficiency.

결국 40~50㎛크기의 기포보다 10~20㎛크기의 미세기포가 오폐수와 접촉면적이 커지게 되므로 그만큼 산소의 용존율이 커져서 수처리의 효율성이 높아지는 것이다.
As a result, the 10 to 20 μm-sized microbubbles have a larger contact area with the waste water than the 40 to 50 μm-sized bubbles, so the oxygen dissolution rate is increased to increase the efficiency of water treatment.

도4는 분쇄부(250)의 다른 형태를 보인 도로서, (a)같이 나선형태로 된 선재(253)가 후방으로 갈수록 그 크기가 작아지는 형태로서, 마찬가지로 선재(253)에는 등간격으로 다수의 분쇄날(254)의 내측 또는 오피리스(240)쪽을 향하여 형성되어 있다.4 is a view showing another form of the crushing unit 250, the size of the wire rod 253 is spiraled toward the rear as shown in (a) as the size is smaller, similar to the wire 253 at equal intervals It is formed toward the inner side of the grinding blade 254 or opiris 240.

(b)는 (a)의 구조를 화살표방향에서 보인 2차원적 구조로서, 하우징(210)의 내경 외측으로부터 중심부까지 조밀하게 설치된 구조를 가짐으로써 기포가 형성된 오폐수가 분쇄공간(212)을 통과하면서 그 오폐수의 단면이 전체적으로 선재(253)를 통과하게 되어 미세기포의 형성이 더욱 원활해지는 것이다.
(b) is a two-dimensional structure in which the structure of (a) is shown in the direction of the arrow, and has a structure that is densely installed from the outside of the inner diameter of the housing 210 to the center portion, so that the waste water with bubbles passes through the grinding space 212. The cross section of the waste water passes through the wire rod 253 as a whole, so that the formation of fine bubbles becomes smoother.

도5는 분쇄부(250)의 또 다른 형태로서, 나선형태로 된 선재(255)의 크기가 후방으로 가면서 점차적으로 작아진 후 다시 점차적으로 크게 형성된 구조를 가지게 되어 도4(b)와 같은 2차원적 구조가 일정한 간격을 두고 반복적으로 형성된 구조이다. 5 is another form of the crushing unit 250, the size of the spiral wire member 255 gradually decreases toward the rear and has a structure that is gradually larger again as shown in Figure 4 (b) 2 The dimensional structure is a structure formed repeatedly at regular intervals.

이러한 구조는 오폐수가 분쇄공간(212)의 후방으로 가면서 지속적으로 분쇄된 미세기포와 장시간 접촉함으로써 그 효율성이 크게 증대되는 구조이다.
This structure is a structure in which the efficiency of the waste water is greatly increased by contacting the continuously crushed microbubble while going to the rear of the grinding space 212.

200 : 미세기포 발생장치 210 : 하우징
211 : 가압공간 212 : 분쇄공간
220 : 오페수유입부 230 : 공기유입부
240 : 오리피스 250 : 분쇄부
260 : 오폐수유출관200: micro bubble generator 210: housing
211: pressurized space 212: grinding space
220: Ope water inlet 230: Air inlet
240: orifice 250: grinding unit
260: wastewater discharge pipe

Claims (2)

관체로 된 하우징의 내측에 오리피스가 구비되어 가압공간과 분쇄공간으로 분리되며, 상기 가압공간에는 오폐수유입부와 공기유입부가 형성되어 오폐수유입부를 통해서는 가압펌프로부터 순환된 오폐수가 유입되고, 공기유입부를 통해서는 외부로부터 공기가 유입되어 그 유입된 공기에 의해 기포가 포함된 오폐수가 오리피스를 통해 분쇄공간으로 유입되어 오폐수유출관을 통해 배출되며, 상기 분쇄공간에는 기포를 미세기포로 분쇄하는 분쇄부가 설치되되, 상기 분쇄부는 선재가 나선형태로 연속하여 형성되고, 상기 선재에는 기포를 분쇄하기 위한 다수개의 분쇄날이 등간격으로 고정설치되는 것을 특징으로 하는 수처리장의 미세기포 발생장치.
An orifice is provided inside the housing made of a tubular body and separated into a pressurized space and a pulverized space. A waste water inlet and an air inlet are formed in the pressurized space. Through the air, the air is introduced from the outside, and the waste water containing bubbles is introduced into the pulverization space through the orifice and discharged through the waste water outlet pipe through the introduced air, and the pulverization part is installed in the pulverization space to crush the bubbles into fine bubbles. Wherein, the crushing unit is a wire rod is formed continuously in a spiral form, the wire rod fine bubble generator of the water treatment plant, characterized in that a plurality of grinding blades for crushing the bubble is fixed at equal intervals.
제1항에 있어서, 상기 분쇄부의 선재는 분쇄공간의 후방으로 갈수록 그 구경이 좁아지는 형태로 구성된 것을 특징으로 하는 수처리장의 미세기포 발생장치.
The microbubble generating device of claim 1, wherein the wire rod of the pulverizing part is configured to have a narrower diameter toward the rear of the pulverizing space.
KR20110135027A 2011-12-15 2011-12-15 Apparatus for generating micro bubbles KR101324133B1 (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
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KR102561267B1 (en) * 2023-03-21 2023-07-28 강원태 Air Supply Apparatus For Wastewater Purification
KR102563398B1 (en) * 2022-07-12 2023-08-03 전상훈 Nano-bubble generator

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100822292B1 (en) 2007-04-02 2008-04-16 주식회사 청경 High-concentration waste-water and livestockwastewater treatment device
KR100837562B1 (en) 2008-01-07 2008-06-12 박진채 For both underwater-pump and aerator
KR101144705B1 (en) * 2010-01-27 2012-05-24 한국기계연구원 Micro bubble instrument
KR101246688B1 (en) 2010-09-14 2013-03-21 이진석 The Micro jet pump for wastewater treatment

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102563398B1 (en) * 2022-07-12 2023-08-03 전상훈 Nano-bubble generator
KR102561267B1 (en) * 2023-03-21 2023-07-28 강원태 Air Supply Apparatus For Wastewater Purification

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