KR100315903B1 - waste water process system used microbubble generator - Google Patents
waste water process system used microbubble generator Download PDFInfo
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- KR100315903B1 KR100315903B1 KR1019990006357A KR19990006357A KR100315903B1 KR 100315903 B1 KR100315903 B1 KR 100315903B1 KR 1019990006357 A KR1019990006357 A KR 1019990006357A KR 19990006357 A KR19990006357 A KR 19990006357A KR 100315903 B1 KR100315903 B1 KR 100315903B1
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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
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/72—Treatment of water, waste water, or sewage by oxidation
- C02F1/74—Treatment of water, waste water, or sewage by oxidation with air
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D21/00—Separation of suspended solid particles from liquids by sedimentation
- B01D21/26—Separation of sediment aided by centrifugal force or centripetal force
- B01D21/267—Separation of sediment aided by centrifugal force or centripetal force by using a cyclone
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
- B01F23/20—Mixing gases with liquids
- B01F23/23—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids
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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
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/24—Treatment of water, waste water, or sewage by flotation
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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
- C02F2305/00—Use of specific compounds during water treatment
- C02F2305/04—Surfactants, used as part of a formulation or alone
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Abstract
본 발명은 미세기포발생장치를 이용한 폐수처리시스템으로 계면활성제첨가수와 공기를 순환펌프에서 교반하여 싸이클론에서 미세기포와 물을 분리하는 간단한 운전으로 미세기포를 생성하며, 순환수의 단위 체적당 기포생성량이 커서 적은 순환수로 운영이 이루어져 작동 준비 시간이 짧고 동력비가 절감되며, 설치면적과 설치비가 적게 들고, 부유물질(SS)의 농도에 따른 미세기포의 양 조절로 부유물질(SS)의 효율적인 부상처리가 이루어져 부상된 오염물질에 높은고형물 함량으로 폐기물량이 현격히 줄어들어 효율적인 운영이 이루어진다.The present invention is a wastewater treatment system using a microbubble generator to generate microbubbles by simple operation of separating the microbubble and water in the cyclone by stirring the surfactant addition water and air in the circulation pump, bubbles per unit volume of the circulating water It is operated with a small amount of circulating water, so it is short in preparation time for operation and saves power cost, and it has low installation area and installation cost, and effectively controls the amount of air bubbles by adjusting the amount of fine bubbles according to the concentration of SS. The flotation process results in a high solids content of the injured contaminants, resulting in a drastic reduction in waste volume.
Description
본 발명은 미세기포발생장치를 이용한 폐수처리시스템에 관한 것으로, 더욱 구체적으로 설명하면, 계면활성제를 첨가한 계면활성제첨가수를 공기와 함께 교반하여 미세기포와 물을 분리하므로써 미세기포를 생성하며, 생성된미세기포는 적은 순환수로 생성이 가능하여 설치면적을 줄일 수 있어 동력비가 절감되고, 또한 부유물질(SS)의 농도에 따라 미세기포의 양을 조절할 수 있어 효율적인 부상처리가 이루어지므로 부상된 오염물질은 높은 고형물이 함량되어 폐기물의 양이 적어 효율적인 운영이 이루어지는 미세기포발생장치를 이용한 폐수처리시스템에 관한 것이다.The present invention relates to a wastewater treatment system using a microbubble generating device, and more specifically, to generate a microbubble by separating the microbubble and water by stirring the surfactant addition water added with a surfactant with air, The old micro-strength gun can be generated with a small amount of circulating water, which can reduce the installation area, thereby reducing the cost of power, and controlling the amount of microbubbles according to the concentration of suspended solids (SS). The material relates to a wastewater treatment system using a microbubble generating device in which a high solid content is contained and the amount of waste is low and thus efficient operation is performed.
종래의 기포를 이용한 부유물질(SS)의 부상기술로 유도공기부상법(IAF : Induction Air Floatation)은 광산업에 사용되는방법으로 선택적 분리와 대량적 수거를 목적으로 기포가 500-1000 micron 정도로 상대적으로 크고 기포를 생성하는데 세찬 동요를 일으켜야 하는 필수조건 때문에, 미세하고 가벼운 고형물(Solid)을 부상시키려면 작은 기포와 부상조 내의 정적인 상태가 요구되는데, 미세한 부유물질(SS)이 함유되어 있는 산업폐수를 처리하는데 한계가 있다는 문제점이 있었다.Induction Air Floatation (IAF) is a method used in the mining industry, which is a floating technology of airborne suspended solids (SS), and has a bubble of 500-1000 micron for the purpose of selective separation and mass collection. Because of the prerequisites to create a large fluctuation in the formation of bubbles, the rise of fine and light solids requires small bubbles and static conditions in the flotation tanks.Industrial wastewater containing fine suspended solids (SS) There was a problem that there is a limit in processing.
또한, 종래의 용존공기부상법(Dissolved Air Floatation)은 최근에 많이 사용되고 있는 낮은 비중의 고형물의 처리를 위한 부상공정으로 미세한 기포의 생성을 위해 4-5기압의 압력공기에 물을 순환하여 과포화수를 만들어 폐수와 혼합하므로써 대기압에 노출되어 용존되어 있던 공기가 미세한 기포로 생성돼 부상하여 미세한 부유물질(SS)을 부상 분리한다.In addition, the conventional dissolved air floatation (Dissolved Air Floatation) is a floating process for the treatment of low-density solids, which are widely used in recent years, and saturated water by circulating water in pressure air of 4-5 atm to generate fine bubbles. By mixing with the wastewater, the air that has been exposed to atmospheric pressure is dissolved into fine bubbles and floats to separate fine suspended matter (SS).
이와 같은 용존공기부상법(DAF)은 부유물질(SS)의 부상 분리를 위한 공기량이 물에서의 공기 용해도에 의해 제한되므로필요한 공기의 량을 제공하기 위해 과포화수를 만들기 위해 상당량의 순환수(폐수량의 100-300%)가 요구되어 부상기포의 생성효율이 낮고 펌프의 가동비가 많이 들게 되며, 설비의 특성상 특수기포를 만들기 위해 화학물질을 사용할 수 없게 되어 기포들간에 결합되는 경향성(도5a)을 제지할 수 없게 되는 등 기포의 크기를 임의로 선정할 수 없게 되어 임의적인 크기의 부유물질(SS)이 함유된 폐수의 처리용으로 부적합하다는 문제점이 있어 왔다.This type of dissolved air flotation (DAF) requires a significant amount of circulating water (wastewater volume) to make supersaturated water to provide the required amount of air since the amount of air for floating separation of suspended solids (SS) is limited by the air solubility in water. 100-300%) is required, resulting in low floating bubble generation efficiency and high operating cost of the pump, and due to the nature of the equipment, chemicals cannot be used to make special bubbles, which tends to bind between bubbles (Fig. 5a). There has been a problem that the size of the bubbles cannot be arbitrarily selected, such as being impossible to restrain, and thus is not suitable for the treatment of wastewater containing suspended solids (SS) of arbitrary size.
따라서, 종래의 기포를 이용한 부유물질(SS)의 부상기술은 미세한 크기의 기포를 생성하기 위해 고압의 압력을 가압하여공기를 순환수에 용해시켜야 하므로 고압을 다뤄야 하기 때문에 항상 위험성이 내재되어 있으며 설치면적이 클 수밖에 없고, 필요한 만큼의 기포를 생성하기 위해 상당량의 순환수를 순환시켜야 하므로 기포생성효율이 낮으며 가동비가 많이 들게 되며, 뿐만 아니라 기포들간에 표면장력에 의해 결합되어 기포가 커지게 되는 경향성 때문에 미세한 기포를 생성하는데 대치되므로 임의의 크기의 부유물질(SS)의 부상 분리효율이 극히 제한적이다는 비경제적 측면과 비효율적 측면이 고려되어야만 했다.Therefore, the floating technology of the conventional air bubbles (SS) using the high pressure to generate air in the circulating water to pressurize the high pressure in order to create a bubble of a fine size, because the high pressure must be handled, there is always a risk inherent and installed Since the area is large, and a considerable amount of circulation water must be circulated to generate as many bubbles as necessary, the bubble generation efficiency is low and operation costs are high, as well as the bubbles are combined by the surface tension between the bubbles. Because of the tendency to replace microbubbles, the economic and inefficient aspects of floating separation (SS) of any size are extremely limited.
본 발명자는 이러한 문제점을 해결하기 위하여, 도4 및 도5(b)에 도시된 바와 같이, 계면활성제를 물에 첨가하여 간단하게 공기와 함께 교반시켜 싸이클론에서 미세기포가 추출되는 방식으로 미세한 기포가 생성되어 기포의 외막을 형성하는 계면활성제첨가수의 표면장력이 매우 약하므로 상호간에 결합되지 않게 되어 1 - 6 micron 정도의 미세 영역대 기포생성이 가능하며, 용존공기부상법(DAF)에 비하여 계면활성제첨가수와 공기의 교반에 의한 미세기포 생성으로 적은 순환수로 상당량의 기포를 생성할 수 있게 되어 설치면적이 적게 들며 설치비용 및 가동비를 절감할 수 있으며, 싸이클론의 간단한 조작으로 폐수의 조건에 따라 최적의 효율을 달성할 수 있는 선택적 사용의 효용성을 알고 본 발명을 완성하기에 이르렀다.In order to solve this problem, the present inventors, as shown in Figures 4 and 5 (b), by adding a surfactant to water and simply stirring with air to fine bubbles in a way that the micro-bubbles are extracted from the cyclone The surface tension of the surfactant-added water forming the outer membrane of the bubble is so weak that it is not bound to each other, so it is possible to generate bubbles in the micro area of about 1-6 micron, compared to the dissolved air flotation method (DAF). It is possible to generate a considerable amount of bubbles with a small amount of circulation water by generating microbubbles by agitation of surfactant-added water and air, which reduces the installation area and reduces installation costs and operating costs. The present invention has been accomplished by knowing the utility of selective use to achieve optimum efficiency according to the conditions of.
따라서, 본 발명의 목적은 순환수에 미세기포 생성을 원활하게 하는 계면활성제를 첨가하여 공기와 함께 교반시켜 미세기포를 생성하므로써 적은 양의 순환수로 상당량의 미세기포 생성이 가능하여 설치면적이 작고 기동비를 절감할 수 있는 미세기포발생장치를 이용한 폐수처리시스템을 제공하는 것이다.Accordingly, an object of the present invention is to add a surfactant that facilitates the formation of microbubbles to the circulating water and to stir together with air to produce microbubbles, so that a small amount of microbubbles can be generated with a small amount of circulating water, thus the installation area is small. It is to provide a wastewater treatment system using a micro bubble generator that can reduce the running cost.
본 발명의 다른 목적은 계면활성제첨가수와 공기의 순환펌프에 의한 교반에 의해 미세기포를 생성 하므로써 1 - 6 micron정도의 미세한 영역대의 기포가 생성되어 폐수의 2-3micron 정도의 미세 부유물질(SS)의 처리효율이 증진되는 미세기포발생장치를 이용한 폐수처리시스템을 제공하는 것이다.Another object of the present invention is to generate a microbubble of about 1-6 micron by generating a microbubble by agitation of the circulating pump of the surfactant-added water and air to produce a fine suspended solids (SS of 2-3micron) It is to provide a wastewater treatment system using a micro-bubble generating device that improves the treatment efficiency.
본 발명의 또 다른 목적은 계면활성제첨가수에 생성된 미세기포를 싸이클론에서 미세기포를 물과 분리하여 추출하므로써싸이클론의 간단한 조작에 의해 미세기포의 추출량을 조절 가능하게 함으로써 폐수의 조건에 따라 선택적 사용이 가능한 미세기포발생장치를 이용한 폐수처리시스템을 제공하는 것이다.Another object of the present invention is to extract the microbubbles generated in the surfactant-added water by separating the microbubbles from the water from the cyclone, so that the extraction amount of the microbubbles can be controlled by a simple operation of the cyclone according to the conditions of the wastewater It is to provide a wastewater treatment system using a microbubble generating device that can be selectively used.
이상과 같은 목적에 의해 본 발명의 아직 다른 목적은 현재 많이 사용되고 있는 용존공기부상법(DAF)에 접목 가능하여 부유물질(SS)의 처리효율과 폐수처리 용량을 높이고 가동비를 절약할 수 있으며, 기계 부상공정의 한계점 때문에 처리할 수없었던 폐수처리분야까지 부상기술을 확대할 수 있으며, 기존의 자리를 많이 차지하고 고가의 고액분리장치나 시설을 대신할 수 있는 미세기포발생장치를 이용한 폐수처리시스템을 제공하는 것이다.With the above object, yet another object of the present invention can be combined with the currently used dissolved air flotation method (DAF) to increase the treatment efficiency and wastewater treatment capacity of the suspended solids (SS), and to reduce operating costs, It is possible to extend the floating technology to the wastewater treatment field that could not be treated because of the limitations of the mechanical flotation process.The wastewater treatment system using a microbubble generator that occupies a lot of existing space and replaces expensive solid-liquid separator or facility To provide.
상기한 목적을 달성하기 위하여, 본 발명은 순환수에 계면활성제를 첨가하여 공기와 함께 교반하여 미세기포를 생성하고,싸이클론에서 순환수의 순환량을 조절하여 미세기포의 추출량을 조절하는 하는 것을 특징으로 한다.In order to achieve the above object, the present invention is characterized in that by adding a surfactant to the circulating water and stirring with air to generate microbubbles, by controlling the amount of circulating water in the cyclone to control the amount of extraction of the microbubbles It is done.
본 발명에 따른 미세기포발생장치를 이용한 폐수처리시스템을 첨부된 도면을 참고로 하여 이하에 상세히기술되는 실시예들에 의해 그 특징 및 장점을 명백하게 이해할 수 있을 것이다.The wastewater treatment system using the microbubble generating device according to the present invention will be clearly understood by the embodiments described in detail below with reference to the accompanying drawings.
도1은 본 발명의 실시예에 따른 미세기포발생장치를 이용한 폐수처리시스템의 개요도1 is a schematic diagram of a wastewater treatment system using a micro-bubble generating device according to an embodiment of the present invention
도2는 본 발명의 실시예에 따른 미세기포발생장치의 상세 설명도Figure 2 is a detailed explanatory view of the microbubble generating device according to an embodiment of the present invention
도3은 본 발명의 실시예에 따른 싸이클론을 횡으로 절단한 확대 단면도Figure 3 is an enlarged cross-sectional view of the cutting cyclone in accordance with an embodiment of the present invention
도4는 본 발명의 미세기포발생장치에서 생성된 미세기포를 확대 도시한 설명도4 is an explanatory view showing enlarged microbubbles generated in the microbubble generating device of the present invention;
도5는 기포의 생성과정 중 발생되는 상호간의 작용을 확대 도시한 설명도 로서,FIG. 5 is an explanatory view showing enlarged interaction between the bubbles generated during the generation process; FIG.
a)는 용존공기부상법(DAF)에 의해 생성된 기포들간의 작용을 보인 설명도이고, b)는 본 발명에 따라 생성되는 미세기포들간에 작용을 보인 설명도이다.a) is an explanatory diagram showing the action between the bubbles generated by the dissolved air flotation (DAF), b) is an explanatory diagram showing the action between the micro-bubbles generated in accordance with the present invention.
*도면의 주요부분에 대한 부호의 설명** Description of the symbols for the main parts of the drawings *
1. 미세기포발생장치 2. 응집반응조1. Microbubble generator 2. Coagulation reactor
3. 부상조 11. 원액탱크3. Flotation tank 11. Liquid tank
12. 공기공급기 13. 기포발생기12. Air Supply 13. Bubble Generator
132. 기액분리부 P1. 공급펌프132. Gas-liquid separator P1. Supply pump
P2. 순환펌프 W1. 계면활성제첨가수P2. Circulation pump W1. Surfactant
W2.순환수W2.Circulation water
본 발명의 실시예에 따른 미세기포발생장치를 이용한 폐수처리시스템에 있어서, 도1에 도시된 바와 같이, 미세기포발생장치(1)에서 생성된 미세기포가 응집반응조(2)에서 수거된 폐수와 함께 부상조(3)로 유입되는 구조로 미세기포발생장치를 이용한 폐수처리시스템를 이룬다.In the wastewater treatment system using the microbubble generating device according to an embodiment of the present invention, as shown in Figure 1, the microbubbles generated in the microbubble generating device 1 and the wastewater collected in the coagulation reaction tank (2) Together with the structure flowing into the floating tank (3) forms a wastewater treatment system using a microbubble generating device.
상기 미세기포발생장치(1)는, 도2에 도시된 바와 같이, 물 및 계면활성제가 저장되는 원액탱크(11)와, 공기를 주입시키는공기공급기(12)와, 상기 원액탱크(11) 및 공기공급기(12)로부터 유입되는 계면활성제첨가수와 공기가 교반되어 미세기포가 생성되어 분리 추출되는 기포발생기(13)로 구성되고, 상기 원액탱크(11)와 기포발생기(13)의 연계는 공급펌프(P1)가도입되어 공급펌프유입관(L1)과 공급펌프유출관(L2)을 통해 각각 원액탱크(11)와 기포발생기(13)에 연결되는 구조로 계면활성제첨가수(W1)가 기포발생기(13)에 공급된다.As shown in FIG. 2, the microbubble generating device 1 includes a stock solution tank 11 in which water and a surfactant are stored, an air supply 12 for injecting air, the stock solution tank 11, and Surfactant additive water flowing from the air supply 12 and the air is agitated is composed of a bubble generator (13) is separated and extracted by generating fine bubbles, the connection between the stock solution tank 11 and the bubble generator 13 is supplied The pump P1 is introduced into the feed pump inlet pipe L1 and the feed pump outlet pipe L2, respectively.The surfactant additive water W1 is bubbled in the structure connected to the bubble tank 11 and the bubble generator 13, respectively. It is supplied to the generator 13.
상기 기포발생기(13)는 폐쇄형 용기로 된 외통부(131)와, 상기 외통부(131)의 내부에 상기 원액탱크(11)에서 유입된 계면활성제첨가수가 저장되어 일정수준의 순환수(W2) 액면을 형성하고, 상기 순환수(W2) 액면 상부로는 상기 순환수(W2)가 순환펌프(P2)에 의해 미세기포가 생성 유입되어 미세기포와 순환수가 분리되는 기액분리부(132)가 형성된다.The bubble generator 13 has an outer cylinder portion 131 which is a closed type container, and the surfactant addition water introduced from the stock solution tank 11 is stored in the outer cylinder portion 131 so that a predetermined level of circulating water (W2) is provided. The upper surface of the circulating water (W2) is formed, the circulating water (W2) is a microbubble is generated by the circulation pump (P2) is introduced into the gas-liquid separator 132 to separate the microbubble and the circulating water is formed.
상기 순환펌프(P2)는 순환펌프유입관(L3) 및 순환펌프유출관(L4)을 통해 각각 상기 외통부(131)의 하부와 상기 기액분리부(132)의 1차 싸이클론(132a)의 도입관(1322a)에 연결되며, 상기 순환펌프유입관(L3)으로는 가지관(T)이 형성되어 상기 공기공급기(12)의 공기유입관(L5)과 연결되는 구조를 이룬다.The circulation pump P2 introduces a lower portion of the outer cylinder portion 131 and a primary cyclone 132a of the gas-liquid separator 132 through the circulation pump inlet pipe L3 and the circulation pump outlet pipe L4, respectively. Is connected to the pipe 1322a, the circulation pump inlet pipe (L3) is a branch pipe (T) is formed to form a structure connected to the air inlet pipe (L5) of the air supply (12).
상기 기액분리부(132)는 동일한 형태의 1차 및 2차 싸이클론(132a,132b)이 결합된 구조로 그 이상도 될 수 있으며 그 이하도 될 수 있음은 물론이며, 도3에 도시된 바와 같이, 원통형 하우징(1321)과, 상기 하우징(1321)의 상부로 외주면에 접선방향으로 도입관(1322)이 내삽되어 고정되며, 상기 하우징(1321)의 상단 및 하단은 원통의 중심방향으로 각각 토출관(1323)과 회수관(1324)이 내삽고정되며, 상기 하우징(1321)의 내부에는 비중차에 의해 미세기포와 분리된 순환수를 용이하게 회수하기 위해 회수조절관(1325)이 경사지게 일단은 내벽에 접하며 타단은 상기 회수관(1324) 방향으로 배치된 구조를 이루고, 상기 회수관(1324)에는 순환수의 회수량을 조절하는 조절밸브(1326)가 설치되며 경우에 따라 배제될 수 있다.The gas-liquid separator 132 may have a structure in which primary and secondary cyclones 132a and 132b of the same type are combined, which may be more or less, as shown in FIG. 3. Likewise, the cylindrical housing 1321 and the introduction pipe 1322 are inserted into and fixed to the outer circumferential surface of the upper portion of the housing 1321 in a tangential direction, and the upper and lower ends of the housing 1321 are discharged toward the center of the cylinder, respectively. The tube 1323 and the recovery tube 1324 are interpolated and fixed, and one end of the inner wall of the housing 1321 is inclined so that the recovery control tube 1325 is inclined to easily recover the circulated water separated from the microbubbles by the specific gravity difference. The other end is in a structure arranged in the direction of the recovery pipe 1324, the control pipe 1324 is provided with a control valve 1326 for adjusting the recovery amount of the circulating water may be excluded in some cases.
이상과 같은 구조를 갖는 본 발명의 실시예에 따른 미세기포발생장치를 이용한 폐수처리시스템의 일련의 처리 과정을 따라 그 기능 및 방법을 이하 상세히 설명한다.The function and method of the wastewater treatment system using the microbubble generator according to the embodiment of the present invention having the above structure will be described in detail below.
본 발명의 실시예에 따른 미세기포발생장치를 이용한 폐수처리시스템은, 도1 및 도2에 도시된 바와 같이, 공급펌프(P1)의구동으로 원액탱크(11)에 저장되어 있는 계면활성제첨가수(W1)가 기포발생기(13)로 공급되어 일정수준의 액면을 갖는 순환수(W2)가 적체된다.In the wastewater treatment system using the microbubble generating device according to the embodiment of the present invention, as shown in FIGS. 1 and 2, the surfactant addition water stored in the stock solution tank 11 by driving the supply pump P1. W1 is supplied to the bubble generator 13 so that the circulating water W2 having a certain level of liquid level accumulates.
기포발생기(13)의 외통부(131) 하부에 적체된 순환수(W2)는 공기공급기(12)의 공기유입관(L5)이 가지관(T)으로 연결된 순환펌프유입관(L3)을 통해 순환수와 공기가 순환펌프(P2)에 의해 교반되어 미세기포가 생성된 순환수가 1차싸이클론(132a)의 도입관(1322a)으로 유입된다.The circulation water W2 accumulated in the lower portion of the outer cylinder portion 131 of the bubble generator 13 is circulated through the circulation pump inlet pipe L3 in which the air inlet pipe L5 of the air supplier 12 is connected to the branch pipe T. Water and air are stirred by the circulation pump P2, and the circulating water in which the microbubbles are generated is introduced into the introduction pipe 1322a of the primary cyclone 132a.
1차싸이클론(132a)으로 유입된 미세기포가 생성된 순환수는 와류가 형성되어 회수조절관(1325)이 직립되며 회수관(1324a)과 일치되게 되어 회수관(1324a)을 통해 비중의 차에 의해 1차 분리된 순환수가 하방으로 회수되는 동시에 생성된 미세기포는 상방으로 토출관(1323a)을 통해 2차 싸이클론(132b)의 도입관(1322b)으로유입된다.The circulating water in which the microbubbles flowed into the primary cyclone 132a is formed with a vortex, so that the recovery control tube 1325 is erected and coincides with the recovery tube 1324a, so that the difference in specific gravity through the recovery tube 1324a is achieved. The circulated water separated by the primary is recovered downward and at the same time, the generated microbubbles are introduced into the introduction pipe 1322b of the secondary cyclone 132b through the discharge pipe 1323a.
2차싸이클론(132b)으로 유입된 미세기포는 1차싸이클론(132a)과 동일한 방법에 의해 2차 분리가 이루어지며, 분리된 미세기포가 토출관(1323b)을 통해 부상조(3)로 유출되어 폐수속에 부유물질(SS)을 부상 분리하여 폐수처리가 이루어진다.The microbubbles introduced into the secondary cyclone 132b are secondary separated by the same method as the primary cyclone 132a, and the separated microbubbles are discharged to the flotation tank 3 through the discharge tube 1323b. Wastewater treatment is performed by floating floating material (SS) floating out of the wastewater.
이때, 운전자는 폐수속의 부유물질(SS)의 농도에 따라 기액분리부(132)로 유입되는 미세기포 생성 순환수의 유입속도의조절로 회수조절관(1325)의 직립각도가 조절되어 회수량이 조절되고, 회수관(1324a,1324b)에 설치된 조절밸브(1326a,1326b)의 조절로 회수량이 조절되어 토출관(1323b)을 통해 부상조(3)로 유입되는 미세기포의 양을 조절하므로써효율적인 운영이 이루어진다.At this time, the driver adjusts the upright angle of the recovery control tube 1325 by adjusting the inflow rate of the micro-bubble generated circulating water flowing into the gas-liquid separator 132 according to the concentration of the suspended solids (SS) in the waste water. By adjusting the control valves 1326a and 1326b installed in the recovery pipes 1324a and 1324b, the amount of recovery is controlled to adjust the amount of fine bubbles flowing into the floating tank 3 through the discharge pipe 1323b. Operation takes place.
본 발명은 미세기포발생장치를 이용한 폐수처리시스템으로 계면활성제첨가수와 공기를 순환펌프에서 교반하여 싸이클론에서 미세기포와 물을 분리하는 간단한 운전으로 미세기포를 생성하며, 순환수의 단위 체적당 기포생성량이 커서 적은 순환수로 운영이 이루어져 작동 준비 시간이 짧고 동력비가 절감되며, 설치면적과 설치비가 적게 들고, 부유물질(SS)의 농도에 따른 미세기포의 양 조절로 부유물질(SS)의 효율적인 부상처리가 이루어져 부상된 오염물질에 높은고형물 함량으로 폐기물량이 현격히 줄어들어 효율적인 운영이 이루어진다.The present invention is a wastewater treatment system using a microbubble generator to generate microbubbles by simple operation of separating the microbubble and water in the cyclone by stirring the surfactant addition water and air in the circulation pump, bubbles per unit volume of the circulating water It is operated with a small amount of circulating water, so it is short in preparation time for operation and saves power cost, and it has low installation area and installation cost, and effectively controls the amount of air bubbles by adjusting the amount of fine bubbles according to the concentration of SS. The flotation process results in a high solids content of the injured contaminants, resulting in a drastic reduction in waste volume.
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| KR20000037345A (en) * | 2000-04-19 | 2000-07-05 | 정효현 | Solid separation method and apparatus using minuteness bubble |
| KR20000054133A (en) * | 2000-05-23 | 2000-09-05 | 조준연 | Circulatory Floating System |
| JP4180545B2 (en) * | 2004-06-24 | 2008-11-12 | 株式会社御池鐵工所 | Wastewater aeration treatment equipment |
| KR100742509B1 (en) | 2005-03-17 | 2007-07-24 | (주)수산이엔씨 | Apparatus for sewage sludge flotation using surfactant micro bubble |
| WO2016047830A1 (en) * | 2014-09-26 | 2016-03-31 | 지앤씨엔지니어링(주) | Membrane filtration device for membrane filtration process having high recovery rate and method for cleaning same |
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| US4203837A (en) * | 1976-01-16 | 1980-05-20 | Hoge John H | Process for removal of discrete particulates and solutes from liquids by foam flotation |
| US4626356A (en) * | 1983-08-22 | 1986-12-02 | Shinryo Air Conditioning Co., Ltd. | Sludge concentration method |
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