WO2014061990A1 - Membrane en céramique en sandwich à pression oscillante de type extérieur-intérieur et système associé - Google Patents

Membrane en céramique en sandwich à pression oscillante de type extérieur-intérieur et système associé Download PDF

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Publication number
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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WO
WIPO (PCT)
Prior art keywords
ceramic membrane
type
type sandwich
chamber
present
Prior art date
Application number
PCT/KR2013/009242
Other languages
English (en)
Korean (ko)
Inventor
김대건
유인상
장현찬
이용현
Original Assignee
주식회사 엔바이로솔루션
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from KR1020120114917A external-priority patent/KR101367587B1/ko
Application filed by 주식회사 엔바이로솔루션 filed Critical 주식회사 엔바이로솔루션
Priority to CN201380054039.5A priority Critical patent/CN104768624A/zh
Publication of WO2014061990A1 publication Critical patent/WO2014061990A1/fr

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Classifications

    • 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.

Landscapes

  • 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)
  • Inorganic Chemistry (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)

Abstract

La présente invention a trait à une membrane en céramique prise en sandwich à pression oscillante de type extérieur-intérieur qui est disposée dans une usine de traitement de l'eau destinée à filtrer des polluants, et un système associé. L'invention concerne la membrane en céramique oscillante en sandwich de type extérieur-intérieur, dont l'intérieur est formé de larges pores et dont l'extérieur est formé de pores fins et le système de membrane en céramique oscillante en sandwich de type extérieur-intérieur, comprend : une chambre dont un côté comporte un orifice d'entrée et dont l'autre côté comporte un orifice d'évacuation, plus large que l'orifice d'entrée ; au moins une des membranes en céramique en sandwich à pression oscillante de type extérieur-intérieur qui est agencée à l'intérieur de la chambre ; une pompe qui est agencée au niveau de l'orifice d'entrée pour appliquer une pression ; et une électrovanne qui est agencée au niveau de l'orifice d'évacuation et qui s'ouvre / se ferme sur commande, augmentant ainsi la vitesse de filtration, à la différence d'un système en sandwich de la membrane en céramique de type extérieur-intérieur qui fait appel à une méthode ordinaire de pesanteur, et maintenant la perméabilité à l'eau en lavant les matières filtrées qui adhèrent à la surface de la membrane.
PCT/KR2013/009242 2012-10-16 2013-10-16 Membrane en céramique en sandwich à pression oscillante de type extérieur-intérieur et système associé WO2014061990A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201380054039.5A CN104768624A (zh) 2012-10-16 2013-10-16 脉动加压式出入型夹层陶瓷膜及其系统

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR1020120114917A KR101367587B1 (ko) 2011-12-09 2012-10-16 맥동가압식 아우트-인 타입 샌드위치 세라믹 멤브레인 시스템
KR10-2012-0114917 2012-10-16

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WO2014061990A1 true WO2014061990A1 (fr) 2014-04-24

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WO (1) WO2014061990A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111848182B (zh) * 2020-08-03 2022-06-14 贺州学院 一种容器内部陶瓷膜制备方法

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06205907A (ja) * 1992-07-30 1994-07-26 Christ Ag 洗浄方法及びその装置
JPH07251016A (ja) * 1994-03-14 1995-10-03 Ishigaki Mech Ind Co 非対称構造のろ過膜並びにそのろ過膜を用いたろ過装置
KR20030001776A (ko) * 2001-06-27 2003-01-08 (주) 세라컴 세라믹 분리막 장치의 역세척장치
KR20080071015A (ko) * 2007-01-29 2008-08-01 정덕수 비대칭 다층 세라믹 필터 및 그 제조 방법과 이를 이용한정수 시스템

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6488842B2 (en) * 1999-02-26 2002-12-03 Tadayoshi Nagaoka Filtering device
CN1168676C (zh) * 2001-01-18 2004-09-29 东华大学 污水的陶瓷膜处理方法及其处理设备
JP3634792B2 (ja) * 2001-10-31 2005-03-30 三洋電機株式会社 被除去物の除去方法
JP4920990B2 (ja) * 2005-03-24 2012-04-18 メタウォーター株式会社 分離膜の洗浄方法

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06205907A (ja) * 1992-07-30 1994-07-26 Christ Ag 洗浄方法及びその装置
JPH07251016A (ja) * 1994-03-14 1995-10-03 Ishigaki Mech Ind Co 非対称構造のろ過膜並びにそのろ過膜を用いたろ過装置
KR20030001776A (ko) * 2001-06-27 2003-01-08 (주) 세라컴 세라믹 분리막 장치의 역세척장치
KR20080071015A (ko) * 2007-01-29 2008-08-01 정덕수 비대칭 다층 세라믹 필터 및 그 제조 방법과 이를 이용한정수 시스템

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