WO2014061990A1 - Oscillating pressure out-in type sandwich ceramic membrane and system for same - Google Patents
Oscillating pressure out-in type sandwich ceramic membrane and system for same Download PDFInfo
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- WO2014061990A1 WO2014061990A1 PCT/KR2013/009242 KR2013009242W WO2014061990A1 WO 2014061990 A1 WO2014061990 A1 WO 2014061990A1 KR 2013009242 W KR2013009242 W KR 2013009242W WO 2014061990 A1 WO2014061990 A1 WO 2014061990A1
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- ceramic membrane
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- 239000012528 membrane Substances 0.000 title claims abstract description 67
- 239000000919 ceramic Substances 0.000 title claims abstract description 63
- 239000011148 porous material Substances 0.000 claims abstract description 25
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 17
- 238000000034 method Methods 0.000 claims abstract description 4
- 239000011247 coating layer Substances 0.000 claims description 5
- 239000000356 contaminant Substances 0.000 claims description 3
- 239000006260 foam Substances 0.000 claims description 2
- 238000001914 filtration Methods 0.000 abstract description 7
- 230000035699 permeability Effects 0.000 abstract description 3
- 230000005484 gravity Effects 0.000 abstract description 2
- 238000003825 pressing Methods 0.000 abstract description 2
- 239000003344 environmental pollutant Substances 0.000 abstract 1
- 239000000463 material Substances 0.000 abstract 1
- 231100000719 pollutant Toxicity 0.000 abstract 1
- 238000005406 washing Methods 0.000 abstract 1
- 239000002351 wastewater Substances 0.000 description 12
- 239000000706 filtrate Substances 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 5
- 230000008021 deposition Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 230000010349 pulsation Effects 0.000 description 4
- 239000002245 particle Substances 0.000 description 3
- 239000010865 sewage Substances 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- 241000282414 Homo sapiens Species 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 241000894006 Bacteria Species 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000002706 hydrostatic effect Effects 0.000 description 1
- 239000010842 industrial wastewater Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000007569 slipcasting Methods 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000004065 wastewater treatment Methods 0.000 description 1
- 238000003911 water pollution Methods 0.000 description 1
Images
Classifications
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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
- C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D61/00—Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
- B01D61/14—Ultrafiltration; Microfiltration
- B01D61/18—Apparatus therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D61/00—Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
- B01D61/14—Ultrafiltration; Microfiltration
- B01D61/22—Controlling or regulating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D71/00—Semi-permeable membranes for separation processes or apparatus characterised by the material; Manufacturing processes specially adapted therefor
- B01D71/02—Inorganic material
- B01D71/024—Oxides
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2315/00—Details relating to the membrane module operation
- B01D2315/04—Reciprocation, oscillation or vibration
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2325/00—Details relating to properties of membranes
- B01D2325/02—Details relating to pores or porosity of the membranes
- B01D2325/022—Asymmetric membranes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2325/00—Details relating to properties of membranes
- B01D2325/02—Details relating to pores or porosity of the membranes
- B01D2325/022—Asymmetric membranes
- B01D2325/0232—Dense layer on both outer sides of the membrane
Definitions
- the present invention relates to sandwich membrane ceramic membranes and systems thereof, and more particularly to out-in type ceramic membranes and systems capable of applying pulsating pressure.
- the ceramic membrane is for filtering solid particles present in the sewage water, and more specifically, the sewage water is purified by filtration and separation of contaminants, organic substances, and bacteria in the water through the micropores formed in the body.
- the ceramic membrane is classified into an in-out type and an out-in type according to a water treatment method, which will be described in detail below.
- the in-out type ceramic membrane is a honeycomb type, in which pressure is applied to the wastewater to flow inward, and then the filtered filtered water is pushed outward.
- such in-out type ceramic membrane may not be smoothly drained according to the arrangement of the inlet or the thickness of the membrane, and there is a problem in that the manufacturing cost is expensive.
- the ceramic membrane of the out-in type is installed on the bottom of the tank, the water treatment is performed from the outside of the membrane to the inside by the gravity method has the advantage of low production cost, but there is a disadvantage that the pores are clogged because the filtrate is laminated.
- the present inventors have come to the present invention after observing the problems of the above-mentioned prior arts, seeking ways to quickly treat the wastewater without the deposition of filtrate at low cost.
- the present invention has been made to solve the above problems of the prior art, to provide a pulsating pressure-out-in type sandwich ceramic membrane and a system capable of lowering the manufacturing cost and improving the processing speed and the filtrate deposition problem. There is a purpose.
- the present invention provides a pulsating pressure type out-in type sandwich ceramic membrane, which is installed in a water treatment facility to filter contaminants, wherein coarse pores are distributed inside and fine pores are distributed outside. do.
- the pulsating pressurized out-in type sandwich ceramic membrane has a foam-shaped core having coarse pores connected to a network, and a plate having smaller pore channels than the core and formed on side and bottom surfaces of the core. It may be configured to include a coating layer having a lower pore channel than the upper body and the plate body is coated on the outer peripheral surface of the plate body.
- the present invention is provided with an inlet is formed on one side, the outlet is formed on the other side larger than the inlet, the pulsating pressure type out-in type sandwich ceramic membrane is installed in the chamber at least one, and the inlet
- the present invention provides a pulsating pressurized out-in type sandwich ceramic membrane system including a pump for applying pressure and a selenoid valve intermittently opened and closed at the outlet.
- an out-in type sandwich ceramic membrane having coarse pore channels formed therein and fine pore channels formed therein can be pulsated and pressure-installed in the chamber to improve filtering speed and prevent deposition of filtrate.
- manufacturing costs can be minimized.
- FIG. 1 is a schematic diagram of a pulsating pressure-out type sandwich ceramic membrane according to a preferred embodiment of the present invention
- Figure 2 is a photograph showing a model of the pulsating pressure type out-in type sandwich ceramic membrane according to a preferred embodiment of the present invention
- FIG. 3 is a schematic diagram of a pulsating pressure-out type sandwich ceramic membrane system according to a preferred embodiment of the present invention.
- the present invention relates to the manufacture and application of a ceramic membrane which is installed in various water treatment facilities to filter solid particles, pulsating pressure-out-in type sandwich ceramic membrane, and the pressurized out-in type sandwich ceramic membrane is installed
- the bar is roughly classified as a system and will be described in turn with reference to the accompanying drawings.
- FIG. 1 is a schematic diagram of a pulsating pressure-out-in type sandwich ceramic membrane according to a preferred embodiment of the present invention
- Figure 2 is a photograph showing a model of the pulsation pressure-out-in type sandwich ceramic membrane according to a preferred embodiment of the present invention. .
- the pulsating pressure-out type sandwich ceramic membrane 100 (hereinafter referred to as 'sandwich ceramic membrane 100') according to a preferred embodiment of the present invention is the pore size of the surface and the inside. Is characterized by different technical features.
- the sandwich ceramic membrane 100 may be composed of an inner core 110, an outer plate 120, and an outermost coating layer 130.
- the core 110 is formed in the form of a foam having a pore channel in which coarse pores of about 0.1-5 mm are connected by a network, and the porosity is 30-90%.
- the plate body 120 is formed on the outer side of the core 110, more specifically, the side and bottom surface except the upper surface of the core 110, has a pore channel of several tens of micrometers 30 ⁇ 60%, thickness is about several mm.
- the coating layer 130 is made of fine ceramic particles of 0.01 ⁇ 1 ⁇ m coated on the outer peripheral surface of the plate body 120, has a pore channel of about 0.5 ⁇ m or less.
- the coating layer 130 is preferably coated as thin as possible in the range in which the desired pore channel is formed.
- the present invention forms a large pore channel on the inner side of the sandwich ceramic membrane 100 to ensure permeability, and by forming fine pores on a thin ceramic plate on the outside to allow the suspended solids to be filtered to maximize the permeability and filtration function. will be.
- the sandwich ceramic membrane 100 configured as described above may be manufactured by slip casting a ceramic powder slurry.
- reference numeral 140 not illustrated in FIG. 1 denotes a holder for installing the sandwich ceramic membrane 100 in a chamber 210 to be described later.
- FIG. 3 is a schematic diagram of a pulsating pressure-out type sandwich ceramic membrane system according to a preferred embodiment of the present invention.
- the pulsating pressure-out type sandwich ceramic membrane system 200 includes a chamber 210, a ceramic membrane 220, a pump (not shown) and And a selenoid valve (not shown).
- the inlet 210a is formed at the front end and the outlet 210b is formed at the front end of the chamber 210 to pass the wastewater.
- the inlet 210a is formed at an upper end of the chamber 210, and a partition wall 230 opened downward is installed between the inlet 210a and the ceramic membrane 220 to discharge the wastewater into the chamber 210.
- the waste water is led to the lower portion of) so that the wastewater is in total contact with the ceramic membrane 220.
- the outlet 210b may be formed at a lower end of the chamber 210 than the inlet 210a to prevent deposition of the filtrate.
- the chamber 210 is configured as described above are all sealed so as not to leak even under pressure except for the inlet (210a), the outlet 210b and the upper end of the ceramic membrane 220. Do.
- the ceramic membrane 220 is inserted into the chamber 210 to filter the wastewater introduced into the chamber 210 through the inlet 210a.
- the ceramic membrane 220 uses the sandwich ceramic membrane 100 of the present invention described above, and may be installed in an appropriate number depending on the degree of pollution or capacity of the wastewater to be treated.
- the top of the ceramic membrane 220 is the chamber 210 so that the filtered water discharged through the ceramic membrane 220 and discharged upwards does not flow into the chamber 210 again. It is preferable to position higher than).
- a water channel 240 is appropriately formed at the upper portion of the chamber 210 so that water filtered through the ceramic membrane 220 can be discharged as described above.
- the pump is installed at the inlet 210a to apply a pressure to the chamber 210.
- the selenoid valve is intermittently opened and closed at the outlet 210b in order to form a pulsation pressure inside the chamber 210 by interacting with the pump.
- wastewater is introduced into the chamber 210 through the inlet 210a.
- the outlet 210b is closed by the selenoid valve
- pressure is formed in the chamber 210 so that a hydrostatic pressure is applied to the ceramic membrane 220, and the introduced wastewater is the ceramic membrane 220.
- the water inside the chamber 210 is discharged faster than the inflow rate of the wastewater together with the suspended matter which has not passed through the ceramic membrane 220.
- the water present in the ceramic membrane 220 is also discharged to the lower portion while the floating adsorbed in the pores of the surface is removed is removed. In this case, the water discharged through the outlet 210b is returned to the inlet 210a.
- a pulsation pressure is formed inside the chamber 210 as the above-described series of steps are repeated according to opening and closing of the selenoid valve, thereby improving the filtering speed and of course the surface of the membrane.
- the suspended matter attached can also be effectively removed.
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- Engineering & Computer Science (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Organic Chemistry (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
- Inorganic Chemistry (AREA)
Abstract
The present invention relates to a oscillating pressure out-in type sandwich ceramic membrane which is installed in a water treatment facility for filtering pollutants and a system for same. Provided are the oscillating out-in type sandwich ceramic membrane, on the inside of which large pores are distributed and on the outside of which fine pores are distributed, and the oscillating out-in type sandwich ceramic membrane system, comprising: a chamber on one side of which an inlet port is formed and on the other side of which a discharge port that is larger than the inlet port is formed; at least one of the oscillating pressure out-in type sandwich membrane which is installed inside the chamber; a pump which is installed at the inlet port for applying pressure; and a solenoid valve which is installed at the discharge port and is opened/closed according to control, thereby increasing filtering speed, unlike an out-in type ceramic membrane sandwich system using a common gravity method, and maintaining water permeability by washing filtered materials that adhere to the surface of the membrane.
Description
본 발명은 샌드위치 형태의 세라믹 멤브레인과 그 시스템에 관한 것으로, 특히, 맥동형 압력을 인가할 수 있는 아우트-인 타입 세라믹 멤브레인 및 그 시스템에 관한 것이다.BACKGROUND OF THE INVENTION Field of the Invention The present invention relates to sandwich membrane ceramic membranes and systems thereof, and more particularly to out-in type ceramic membranes and systems capable of applying pulsating pressure.
최근 인간의 산업활동과 소비활동이 증가하면서 다량의 산업폐수 및 생활오수가 발생하고 있으며, 그 결과 수자원이 오염되거나 부폐하는 등 다양한 환경 문제가 대두되고 있다. 특히, 수자원 오염은 인간의 실생활과 밀접한 관련이 있기 때문에 국내 뿐 아니라 해외에서도 큰 문제로 부각되고 있으며, 이에 각 국에서는 하폐수의 배출을 제한하거나 정화시설의 설치를 의무화하는 등 각종 법규를 규정하여 엄격히 관리하고 있는 실정이다.Recently, as industrial and consumer activities of human beings increase, a large amount of industrial wastewater and domestic sewage are generated. As a result, various environmental problems such as pollution or depletion of water resources are emerging. In particular, since water pollution is closely related to the real life of human beings, it is a big problem not only in Korea but also abroad. Therefore, each country strictly regulates various regulations such as restricting the discharge of wastewater and mandatory installation of purification facilities. I'm managing.
이러한 실정을 반영하여 관련 업계에서는 다양한 하폐수 처리 기술들을 개발하여 사용하고 있는데, 그 중 하나가 바로 세라믹 멤브레인(Membrane)이다. 세라믹 멤브레은 하폐수 내에 존재하는 고체 입자를 필터링하기 위한 것으로, 보다 상세하게는 몸체 내에 형성된 미세 기공을 통해 수중의 오염물질, 유기물, 세균 등을 여과 및 분리함으로써 하폐수를 정화하게 된다. 이 경우, 세라믹 멤브레인은 수처리 방식에 따라 인-아우트(IN-OUT) 타입과 아우트-인(OUT-IN) 타입으로 구별되는 바 이하 구체적으로 설명하도록 한다.Reflecting this situation, the related industry develops and uses various wastewater treatment technologies, one of which is a ceramic membrane (Membrane). The ceramic membrane is for filtering solid particles present in the sewage water, and more specifically, the sewage water is purified by filtration and separation of contaminants, organic substances, and bacteria in the water through the micropores formed in the body. In this case, the ceramic membrane is classified into an in-out type and an out-in type according to a water treatment method, which will be described in detail below.
먼저, 인-아우트 타입의 세라믹 멤브레인은 허니컴 형태로서 하폐수에 압력을 인가하여 내측으로 유입시킨 후 필터링된 여과수를 외측으로 밀어내는 방식이다. 그러나 이러한 인-아우트 타입의 세라믹 멤브레인은 유입구의 배치나 멤브레인의 두께 등에 따라 배수가 원활하지 않을 수 있으며, 구조상 제조단가가 고가인 문제점이 있다.First, the in-out type ceramic membrane is a honeycomb type, in which pressure is applied to the wastewater to flow inward, and then the filtered filtered water is pushed outward. However, such in-out type ceramic membrane may not be smoothly drained according to the arrangement of the inlet or the thickness of the membrane, and there is a problem in that the manufacturing cost is expensive.
한편, 아우트-인 타입의 세라믹 멤브레인은 수조 바닥에 설치되어 중력 방식에 의해 멤브레인의 외측에서 내측으로 수처리가 이루어지는 방식으로 제조비용이 저렴한 장점이 있으나 여과물이 적층되어 기공이 막히는 단점이 있다.On the other hand, the ceramic membrane of the out-in type is installed on the bottom of the tank, the water treatment is performed from the outside of the membrane to the inside by the gravity method has the advantage of low production cost, but there is a disadvantage that the pores are clogged because the filtrate is laminated.
이에, 본 발명자는 상술한 종래기술들의 문제점을 예의, 주시하여 하폐수를 여과물의 침적 없이 저렴한 비용으로 신속하게 처리할 수 있는 방안을 모색한 끝에 본 발명에 이르게 된 것이다.Accordingly, the present inventors have come to the present invention after observing the problems of the above-mentioned prior arts, seeking ways to quickly treat the wastewater without the deposition of filtrate at low cost.
본 발명은 전술한 종래기술의 문제점을 해결하기 위해 안출된 것으로, 제조단가를 낮추고, 처리 속도와 여과물 침적 문제를 개선할 수 있는 맥동가압식 아우트-인 타입 샌드위치 세라믹 멤브레인 및 그 시스템을 제공하는 데 목적이 있다.The present invention has been made to solve the above problems of the prior art, to provide a pulsating pressure-out-in type sandwich ceramic membrane and a system capable of lowering the manufacturing cost and improving the processing speed and the filtrate deposition problem. There is a purpose.
전술한 기술적 과제를 해결하기 위한 수단으로서,As a means for solving the above technical problem,
본 발명은, 수처리 시설에 설치되어 오염물질을 필터링하는 세라믹 멤브레인에 있어서, 내부에는 조대한 기공이 분포하고, 외부에는 미세한 기공이 분포하는 것을 특징으로 하는 맥동가압식 아우트-인 타입 샌드위치 세라믹 멤브레인을 제공한다.The present invention provides a pulsating pressure type out-in type sandwich ceramic membrane, which is installed in a water treatment facility to filter contaminants, wherein coarse pores are distributed inside and fine pores are distributed outside. do.
이 경우, 상기 맥동가압식 아우트-인 타입 샌드위치 세라믹 멤브레인은 조대한 기공들이 네트워크로 연결된 기공채널을 갖는 폼 형태의 코어와, 상기 코어보다 작은 기공채널을 가지며 상기 코어의 측면과 하부면에 형성되는 판상체 및 상기 판상체보다 작은 기공채널을 가지며 상기 판상체의 외주면에 코팅되는 코팅층을 포함하여 구성될 수 있다.In this case, the pulsating pressurized out-in type sandwich ceramic membrane has a foam-shaped core having coarse pores connected to a network, and a plate having smaller pore channels than the core and formed on side and bottom surfaces of the core. It may be configured to include a coating layer having a lower pore channel than the upper body and the plate body is coated on the outer peripheral surface of the plate body.
또한, 본 발명은 일측에는 유입구가 형성되고, 타측에는 상기 유입구보다 큰 배출구가 형성되는 챔버와, 상기 챔버 내에 적어도 하나 이상 설치되는 상기 맥동가압식 아우트-인 타입 샌드위치 세라믹 멤브레인과, 상기 유입구에 설치되어 압력을 인가하는 펌프 및 상기 배출구에 설치되어 단속적으로 개폐되는 셀레노이드 밸브를 포함하는 맥동가압식 아우트-인 타입 샌드위치 세라믹 멤브레인 시스템을 제공한다.In addition, the present invention is provided with an inlet is formed on one side, the outlet is formed on the other side larger than the inlet, the pulsating pressure type out-in type sandwich ceramic membrane is installed in the chamber at least one, and the inlet The present invention provides a pulsating pressurized out-in type sandwich ceramic membrane system including a pump for applying pressure and a selenoid valve intermittently opened and closed at the outlet.
본 발명에 따르면, 내부에는 조대한 기공채널이 형성되고, 외부에는 미세한 기공채널이 형성된 아우트-인 타입 샌드위치 세라믹 멤브레인을 챔버 내에 맥동가압식으로 설치함으로써 필터링 속도를 향상시키고, 여과물의 침적을 방지할 수 있으며, 제조단가도 최소화할 수 있다.According to the present invention, an out-in type sandwich ceramic membrane having coarse pore channels formed therein and fine pore channels formed therein can be pulsated and pressure-installed in the chamber to improve filtering speed and prevent deposition of filtrate. In addition, manufacturing costs can be minimized.
도 1은 본 발명의 바람직한 실시예에 따른 맥동가압식 아우트-인 타입 샌드위치 세라믹 멤브레인의 모식도,1 is a schematic diagram of a pulsating pressure-out type sandwich ceramic membrane according to a preferred embodiment of the present invention;
도 2는 본 발명의 바람직한 실시예에 따른 맥동가압식 아우트-인 타입 샌드위치 세라믹 멤브레인의 모형을 나타낸 사진,Figure 2 is a photograph showing a model of the pulsating pressure type out-in type sandwich ceramic membrane according to a preferred embodiment of the present invention,
도 3은 본 발명의 바람직한 실시예에 따른 맥동가압식 아우트-인 타입 샌드위치 세라믹 멤브레인 시스템의 모식도.3 is a schematic diagram of a pulsating pressure-out type sandwich ceramic membrane system according to a preferred embodiment of the present invention.
이하에서는, 첨부한 도면을 참조하여 본 발명이 속하는 기술분야에서 통상의 지식을 가진 자가 용이하게 실시할 수 있도록 본 발명의 실시예를 상세히 설명한다. 그러나 본 발명은 여러 가지 상이한 형태로 구현될 수 있으며, 여기에서 설명하는 실시예에 한정되지 않는다. 그리고 도면에서 본 발명을 명확하게 설명하기 위하여 설명과 관계없는 부분은 생략하였으며, 명세서 전체를 통하여 유사한 부분에 대해서는 유사한 도면 부호를 붙여 설명한다.Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art may easily implement the present invention. As those skilled in the art would realize, the described embodiments may be modified in various different ways, all without departing from the spirit or scope of the present invention. In the drawings, parts irrelevant to the description are omitted in order to clearly describe the present invention, and like reference numerals designate like parts throughout the specification.
먼저, 본 발명은 다양한 수처리 시설에 설치되어 고체 입자를 필터링하는 세라믹 멤브레인의 제조 및 적용에 관한 것으로, 맥동가압식 아우트-인 타입 샌드위치 세라믹 멤브레인과, 이러한 세라믹 멤브레인이 설치된 가압식 아우트-인 타입 샌드위치 세라믹 멤브레인 시스템으로 대별되는 바 이하 도면을 참고하여 차례대로 설명하도록 한다.First, the present invention relates to the manufacture and application of a ceramic membrane which is installed in various water treatment facilities to filter solid particles, pulsating pressure-out-in type sandwich ceramic membrane, and the pressurized out-in type sandwich ceramic membrane is installed The bar is roughly classified as a system and will be described in turn with reference to the accompanying drawings.
도 1은 본 발명의 바람직한 실시예에 따른 맥동가압식 아우트-인 타입 샌드위치 세라믹 멤브레인의 모식도이고, 도 2는 본 발명의 바람직한 실시예에 따른 맥동가압식 아우트-인 타입 샌드위치 세라믹 멤브레인의 모형을 나타낸 사진이다.1 is a schematic diagram of a pulsating pressure-out-in type sandwich ceramic membrane according to a preferred embodiment of the present invention, Figure 2 is a photograph showing a model of the pulsation pressure-out-in type sandwich ceramic membrane according to a preferred embodiment of the present invention. .
도 1 및 도 2를 참고하면, 본 발명의 바람직한 실시예에 따른 맥동가압식 아우트-인 타입 샌드위치 세라믹 멤브레인(100)(이하, '샌드위치 세라믹 멤브레인(100)'이라 함)은 표면과 내부의 기공 크기가 상이한 것을 기술적 특징으로 한다.1 and 2, the pulsating pressure-out type sandwich ceramic membrane 100 (hereinafter referred to as 'sandwich ceramic membrane 100') according to a preferred embodiment of the present invention is the pore size of the surface and the inside. Is characterized by different technical features.
구체적으로, 상기 샌드위치 세라믹 멤브레인(100)은 내부의 코어(110)와, 외부의 판상체(120) 및 최외각의 코팅층(130)으로 구성될 수 있다. 이 경우, 상기 코어(110)는 약 0.1~5 mm의 조대한 기공들이 네트워크로 연결된 기공채널을 갖는 폼 형태로 이루어지며, 기공도는 30~90%이다. 또한, 상기 판상체(120)는 상기 코어(110)의 외측, 보다 상세하게는, 상기 코어(110)의 상부면을 제외한 측면과 하부면에 형성되며, 수십 ㎛의 기공채널을 가지고 기공도는 30~60%, 두께는 수 mm 내외로 구성된다. 한편, 상기 코팅층(130)은 상기 판상체(120)의 외주면에 코팅되는 0.01~1 ㎛의 미세한 세라믹 입자로 이루어지며, 약 0.5 ㎛ 이하의 기공채널을 가진다. 이 경우, 상기 코팅층(130)은 목적하는 기공채널이 형성되는 범위에서 가능한 얇게 코팅되는 것이 바람직하다.Specifically, the sandwich ceramic membrane 100 may be composed of an inner core 110, an outer plate 120, and an outermost coating layer 130. In this case, the core 110 is formed in the form of a foam having a pore channel in which coarse pores of about 0.1-5 mm are connected by a network, and the porosity is 30-90%. In addition, the plate body 120 is formed on the outer side of the core 110, more specifically, the side and bottom surface except the upper surface of the core 110, has a pore channel of several tens of micrometers 30 ~ 60%, thickness is about several mm. On the other hand, the coating layer 130 is made of fine ceramic particles of 0.01 ~ 1 ㎛ coated on the outer peripheral surface of the plate body 120, has a pore channel of about 0.5 ㎛ or less. In this case, the coating layer 130 is preferably coated as thin as possible in the range in which the desired pore channel is formed.
즉, 본 발명은 상기 샌드위치 세라믹 멤브레인(100)의 내측에는 큰 기공채널을 형성하여 투수성을 확보하고, 외측에는 얇은 세라믹 판에 미세한 기공을 형성시켜 부유물이 여과되도록 함으로써 투수성과 여과 기능을 극대화한 것이다.That is, the present invention forms a large pore channel on the inner side of the sandwich ceramic membrane 100 to ensure permeability, and by forming fine pores on a thin ceramic plate on the outside to allow the suspended solids to be filtered to maximize the permeability and filtration function. will be.
한편, 상술한 바와 같이 구성되는 상기 샌드위치 세라믹 멤브레인(100)은 세라믹 분말 슬러리를 슬립 캐스팅(Slip Casting)하여 제조될 수 있다. 참고적으로, 도 1에서 설명하지 않은 도면부호 "140"은 상기 샌드위치 세라믹 멤브레인(100)을 후술하는 챔버(210)에 설치하기 위한 홀더를 나타낸다.Meanwhile, the sandwich ceramic membrane 100 configured as described above may be manufactured by slip casting a ceramic powder slurry. For reference, reference numeral 140 not illustrated in FIG. 1 denotes a holder for installing the sandwich ceramic membrane 100 in a chamber 210 to be described later.
이상으로 본 발명의 바람직한 실시예에 따른 맥동가압식 아우트-인 타입 샌드위치 세라믹 멤브레인에 대해 설명하였다. 이하에서는 본 발명의 바람직한 실시예에 따른 맥동가압식 아우트-인 타입 샌드위치 세라믹 멤브레인 시스템에 대해 도면을 참고하여 상세히 설명하도록 한다.It has been described above the pulsating pressure type out-in type sandwich ceramic membrane according to a preferred embodiment of the present invention. Hereinafter, a pulsation pressure-out type sandwich ceramic membrane system according to a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings.
도 3은 본 발명의 바람직한 실시예에 따른 맥동가압식 아우트-인 타입 샌드위치 세라믹 멤브레인 시스템의 모식도이다.3 is a schematic diagram of a pulsating pressure-out type sandwich ceramic membrane system according to a preferred embodiment of the present invention.
도 3에 도시된 바와 같이, 본 발명의 바람직한 실시예에 따른 맥동가압식 아우트-인 타입 샌드위치 세라믹 멤브레인 시스템(200)은 챔버(210)와, 세라믹 멤브레인(220)과, 펌프(도면 미도시) 및 셀레노이드 밸브(도면 미도시)를 포함하여 구성된다.As shown in FIG. 3, the pulsating pressure-out type sandwich ceramic membrane system 200 according to a preferred embodiment of the present invention includes a chamber 210, a ceramic membrane 220, a pump (not shown) and And a selenoid valve (not shown).
먼저, 상기 챔버(210)는 하폐수를 통과시키기 위한 구성으로 전단부에는 유입구(210a)가 형성되고, 후단부에는 배출구(210b)가 형성된다. 구체적으로, 상기 유입구(210a)는 상기 챔버(210)의 상단에 형성되며, 상기 유입구(210a)와 상기 세라믹 멤브레인(220) 사이에는 아래로 열린 격벽(230)이 설치되어 하폐수를 상기 챔버(210)의 하부로 유도함으로써 하폐수가 상기 세라믹 멤브레인(220)과 전체적으로 접촉되도록 한다. 또한, 상기 배출구(210b)는 상기 챔버(210)의 하단에 상기 유입구(210a)보다 크게 형성됨으로써 여과물의 침적을 방지할 수 있다.First, the inlet 210a is formed at the front end and the outlet 210b is formed at the front end of the chamber 210 to pass the wastewater. Specifically, the inlet 210a is formed at an upper end of the chamber 210, and a partition wall 230 opened downward is installed between the inlet 210a and the ceramic membrane 220 to discharge the wastewater into the chamber 210. The waste water is led to the lower portion of) so that the wastewater is in total contact with the ceramic membrane 220. In addition, the outlet 210b may be formed at a lower end of the chamber 210 than the inlet 210a to prevent deposition of the filtrate.
한편, 상술한 바와 같이 구성되는 상기 챔버(210)는 상기 유입구(210a)와, 상기 배출구(210b) 및 상기 세라믹 멤브레인(220)의 상단부를 제외하고는 모두 가압시에도 누수되지 않도록 밀폐되는 것이 바람직하다.On the other hand, the chamber 210 is configured as described above are all sealed so as not to leak even under pressure except for the inlet (210a), the outlet 210b and the upper end of the ceramic membrane 220. Do.
다음으로, 상기 세라믹 멤브레인(220)은 상기 유입구(210a)를 통해 상기 챔버(210) 내로 유입된 하폐수를 여과하기 위한 구성으로 상기 챔버(210)에 삽입 설치된다. 여기서, 상기 세라믹 멤브레인(220)은 앞서 설명한 본 발명의 샌드위치 세라믹 멤브레인(100)을 사용하며, 처리하고자 하는 하폐수의 오염 정도나 용량에 따라 적절한 수로 설치될 수 있다.Next, the ceramic membrane 220 is inserted into the chamber 210 to filter the wastewater introduced into the chamber 210 through the inlet 210a. Here, the ceramic membrane 220 uses the sandwich ceramic membrane 100 of the present invention described above, and may be installed in an appropriate number depending on the degree of pollution or capacity of the wastewater to be treated.
한편, 상기 세라믹 멤브레인(220)의 설치시에는 상기 세라믹 멤브레인(220)을 통과하여 상부로 배출되는 여과수가 다시 상기 챔버(210) 내로 유입되지 않도록 상기 세라믹 멤브레인(220)의 상단이 상기 챔버(210)보다 높게 위치하는 것이 바람직하다. 이 경우, 상기 챔버(210)의 상부에는 상술한 바와 같이 상기 세라믹 멤브레인(220)을 통해 여과된 물이 배출될 수 있도록 수로(240)가 적절하게 형성된다.On the other hand, when the ceramic membrane 220 is installed, the top of the ceramic membrane 220 is the chamber 210 so that the filtered water discharged through the ceramic membrane 220 and discharged upwards does not flow into the chamber 210 again. It is preferable to position higher than). In this case, a water channel 240 is appropriately formed at the upper portion of the chamber 210 so that water filtered through the ceramic membrane 220 can be discharged as described above.
계속하여, 상기 펌프는 상기 챔버(210) 내부에 압력을 인가하기 위한 구성으로 상기 유입구(210a)에 설치된다.Subsequently, the pump is installed at the inlet 210a to apply a pressure to the chamber 210.
마지막으로, 상기 셀레노이드 밸브는 상기 펌프와의 상호 작용으로 상기 챔버(210) 내부에 맥동압력을 형성하기 위한 구성으로 상기 배출구(210b)에 단속적으로 개폐 가능하게 설치된다.Finally, the selenoid valve is intermittently opened and closed at the outlet 210b in order to form a pulsation pressure inside the chamber 210 by interacting with the pump.
이상으로 본 발명의 바람직한 실시예에 따른 맥동가압식 아우트-인 타입 샌드위치 세라믹 멤브레인 시스템의 구성에 대해 설명하였다. 이하에서는 본 발명의 바람직한 실시예에 따른 맥동가압식 아우트-인 타입 샌드위치 세라믹 멤브레인 시스템의 작용에 대해 설명하도록 한다.It has been described above the configuration of the pulsating pressure type out-in type sandwich ceramic membrane system according to a preferred embodiment of the present invention. Hereinafter will be described the operation of the pulsating pressure-in-type sandwich ceramic membrane system according to a preferred embodiment of the present invention.
먼저, 상기 펌프를 작동시키면 하폐수가 상기 유입구(210a)를 통해 상기 챔버(210) 내로 유입된다. 이 경우, 상기 셀레노이드 밸브에 의해 상기 배출구(210b)가 닫혀 있는 동안에는 상기 챔버(210) 내에 압력이 형성되어 상기 세라믹 멤브레인(220)에 정수압이 인가되고, 유입된 하폐수는 상기 세라믹 멤브레인(220)의 외부로부터 내부를 통과하면서 여과된 후 상기 챔버(210)의 상부로 배출된다. 반면, 상기 셀레노이드 밸브에 의해 상기 배출구(210b)가 개방된 상태에서는 상기 챔버(210) 내부의 물이 상기 세라믹 멤브레인(220)을 통과하지 못한 부유물과 함께 하폐수의 유입속도보다 더 빠르게 배출되어 수위가 낮아지며, 이와 동시에 상기 세라믹 멤브레인(220)의 내부에 존재하는 물도 하부로 배출되면서 표면의 기공에 흡착된 부유물이 떨어져 제거된다. 이 경우, 상기 배출구(210b)를 통해 배출된 물은 다시 상기 유입구(210a)로 반송된다.First, when the pump is operated, wastewater is introduced into the chamber 210 through the inlet 210a. In this case, while the outlet 210b is closed by the selenoid valve, pressure is formed in the chamber 210 so that a hydrostatic pressure is applied to the ceramic membrane 220, and the introduced wastewater is the ceramic membrane 220. After passing through the inside from the outside of the filtered and discharged to the upper portion of the chamber (210). On the other hand, in the state in which the outlet 210b is opened by the selenoid valve, the water inside the chamber 210 is discharged faster than the inflow rate of the wastewater together with the suspended matter which has not passed through the ceramic membrane 220. At the same time, the water present in the ceramic membrane 220 is also discharged to the lower portion while the floating adsorbed in the pores of the surface is removed is removed. In this case, the water discharged through the outlet 210b is returned to the inlet 210a.
이상에서 설명한 바와 같이 본 발명에서는 상기 셀레노이드 밸브의 개폐에 따라 상술한 일련의 과정이 반복되면서 상기 챔버(210) 내부에 맥동압력이 형성되며, 이에 따라 필터링 속도가 향상되는 것은 물론 멤브레인의 표면에 부착된 부유물도 효과적으로 제거할 수 있다.As described above, in the present invention, a pulsation pressure is formed inside the chamber 210 as the above-described series of steps are repeated according to opening and closing of the selenoid valve, thereby improving the filtering speed and of course the surface of the membrane. The suspended matter attached can also be effectively removed.
이상으로 본 발명의 바람직한 실시예를 도면을 참고하여 상세하게 설명하였다. 본 발명의 설명은 예시를 위한 것이며, 본 발명이 속하는 기술 분야에서 통상의 지식을 가진 자는 본 발명의 기술적 사상이나 필수적인 특징을 변경하지 않고서 다른 구체적인 형태로 쉽게 변형이 가능하다는 것을 이해할 수 있을 것이다.Preferred embodiments of the present invention have been described in detail above with reference to the drawings. The description of the present invention is for illustrative purposes, and it will be understood by those skilled in the art that the present invention may be easily modified in other specific forms without changing the technical spirit or essential features of the present invention.
따라서 본 발명의 범위는 상술한 상세한 설명보다는 후술하는 특허청구범위에 의하여 나타내어지며, 특허청구범위의 의미, 범위, 및 그 균등 개념으로부터 도출되는 모든 변경 또는 변형된 형태가 본 발명의 범위에 포함되는 것으로 해석되어야 한다.Therefore, the scope of the present invention is represented by the following claims rather than the detailed description, and all changes or modifications derived from the meaning, scope, and equivalent concepts of the claims are included in the scope of the present invention. Should be interpreted as
Claims (3)
- 수처리 시설에 설치되어 오염물질을 필터링하는 세라믹 멤브레인에 있어서,A ceramic membrane installed in a water treatment facility to filter contaminants,내부에는 조대한 기공이 분포하고, 외부에는 미세한 기공이 분포하는 것을 특징으로 하는 맥동가압식 아우트-인 타입 샌드위치 세라믹 멤브레인.A pulsating pressurized out-in type sandwich ceramic membrane, characterized in that coarse pores are distributed inside and fine pores are distributed outside.
- 제 1 항에 있어서,The method of claim 1,상기 맥동가압식 아우트-인 타입 샌드위치 세라믹 멤브레인은,The pulsating pressure type out-in type sandwich ceramic membrane,조대한 기공들이 네트워크로 연결된 기공채널을 갖는 폼 형태의 코어와;A core having a foam form having pore channels in which coarse pores are networked;상기 코어보다 작은 기공채널을 가지며 상기 코어의 측면과 하부면에 형성되는 판상체; 및A plate-like body having a pore channel smaller than the core and formed on side and bottom surfaces of the core; And상기 판상체보다 작은 기공채널을 가지며 상기 판상체의 외주면에 코팅되는 코팅층;A coating layer having a pore channel smaller than the plate body and coated on an outer circumferential surface of the plate body;을 포함하여 구성되는 것을 특징으로 하는 맥동가압식 아우트-인 타입 샌드위치 세라믹 멤브레인.Pulsating pressure type out-in type sandwich ceramic membrane, characterized in that comprising a.
- 일측에는 유입구가 형성되고, 타측에는 상기 유입구보다 큰 배출구가 형성되는 챔버와;A chamber in which one inlet is formed, and the other side is formed with a larger outlet than the inlet;상기 챔버 내에 적어도 하나 이상 설치되는 제 1 항 또는 제 2 항에 따른 맥동가압식 아우트-인 타입 샌드위치 세라믹 멤브레인과;A pulsating pressurized outer-in type sandwich ceramic membrane according to claim 1 or 2 installed in the chamber;상기 유입구에 설치되어 압력을 인가하는 펌프; 및A pump installed at the inlet to apply pressure; And상기 배출구에 설치되어 단속적으로 개폐되는 셀레노이드 밸브;A selenoid valve installed at the outlet and intermittently opened and closed;를 포함하는 맥동가압식 아우트-인 타입 샌드위치 세라믹 멤브레인 시스템.Pulsating pressure-out type in-type sandwich ceramic membrane system comprising a.
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| CN201380054039.5A CN104768624A (en) | 2012-10-16 | 2013-10-16 | Oscillating pressure out-in type sandwich ceramic membrane and system for same |
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| KR1020120114917A KR101367587B1 (en) | 2011-12-09 | 2012-10-16 | Pulsation pressure-assisted out-in type sandwich ceramic membrane system |
| KR10-2012-0114917 | 2012-10-16 |
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| JPH06205907A (en) * | 1992-07-30 | 1994-07-26 | Christ Ag | Cleaning method and device |
| JPH07251016A (en) * | 1994-03-14 | 1995-10-03 | Ishigaki Mech Ind Co | Filter membrane with asymmetric structure and filter apparatus wherein the filter membrane is used |
| KR20030001776A (en) * | 2001-06-27 | 2003-01-08 | (주) 세라컴 | a back washing apparatus of ceramics membrane |
| KR20080071015A (en) * | 2007-01-29 | 2008-08-01 | 정덕수 | Asymmetric multi-layer ceramic filter, manufacturing method thereof and the water filtration system using the filter |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6488842B2 (en) * | 1999-02-26 | 2002-12-03 | Tadayoshi Nagaoka | Filtering device |
| CN1168676C (en) * | 2001-01-18 | 2004-09-29 | 东华大学 | Contaminated-fluid treating filter method and equipment |
| JP3634792B2 (en) * | 2001-10-31 | 2005-03-30 | 三洋電機株式会社 | Removal method of object to be removed |
| JP4920990B2 (en) * | 2005-03-24 | 2012-04-18 | メタウォーター株式会社 | Separation membrane cleaning method |
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- 2013-10-16 WO PCT/KR2013/009242 patent/WO2014061990A1/en active Application Filing
- 2013-10-16 CN CN201380054039.5A patent/CN104768624A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06205907A (en) * | 1992-07-30 | 1994-07-26 | Christ Ag | Cleaning method and device |
| JPH07251016A (en) * | 1994-03-14 | 1995-10-03 | Ishigaki Mech Ind Co | Filter membrane with asymmetric structure and filter apparatus wherein the filter membrane is used |
| KR20030001776A (en) * | 2001-06-27 | 2003-01-08 | (주) 세라컴 | a back washing apparatus of ceramics membrane |
| KR20080071015A (en) * | 2007-01-29 | 2008-08-01 | 정덕수 | Asymmetric multi-layer ceramic filter, manufacturing method thereof and the water filtration system using the filter |
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