CN105664725A - Soft flat filter membrane element and method for manufacturing same - Google Patents
Soft flat filter membrane element and method for manufacturing same Download PDFInfo
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- CN105664725A CN105664725A CN201610178906.1A CN201610178906A CN105664725A CN 105664725 A CN105664725 A CN 105664725A CN 201610178906 A CN201610178906 A CN 201610178906A CN 105664725 A CN105664725 A CN 105664725A
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- mbr
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- 239000012528 membrane Substances 0.000 title claims abstract description 76
- 238000000034 method Methods 0.000 title claims description 12
- 238000004519 manufacturing process Methods 0.000 title claims description 8
- 239000004745 nonwoven fabric Substances 0.000 claims abstract description 21
- 239000012943 hotmelt Substances 0.000 claims abstract description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 9
- 239000003292 glue Substances 0.000 claims abstract description 5
- 238000002844 melting Methods 0.000 claims abstract description 5
- 238000001914 filtration Methods 0.000 claims description 41
- 239000004831 Hot glue Substances 0.000 claims description 16
- 150000001875 compounds Chemical class 0.000 claims description 12
- 238000005187 foaming Methods 0.000 claims description 12
- 238000002604 ultrasonography Methods 0.000 claims description 12
- 239000000463 material Substances 0.000 claims description 10
- 230000002787 reinforcement Effects 0.000 claims description 9
- 239000002131 composite material Substances 0.000 claims description 6
- 238000013329 compounding Methods 0.000 claims description 6
- 239000000155 melt Substances 0.000 claims description 6
- 206010037660 Pyrexia Diseases 0.000 claims description 3
- 238000005520 cutting process Methods 0.000 claims description 3
- 238000007500 overflow downdraw method Methods 0.000 claims description 3
- 239000011148 porous material Substances 0.000 claims description 3
- 238000007789 sealing Methods 0.000 claims description 3
- 230000035807 sensation Effects 0.000 claims description 3
- 238000010345 tape casting Methods 0.000 claims description 3
- 238000001816 cooling Methods 0.000 claims 1
- 239000010865 sewage Substances 0.000 abstract description 12
- 239000010410 layer Substances 0.000 abstract 4
- 239000002344 surface layer Substances 0.000 abstract 2
- 230000006835 compression Effects 0.000 abstract 1
- 238000007906 compression Methods 0.000 abstract 1
- 239000006261 foam material Substances 0.000 abstract 1
- 230000003014 reinforcing effect Effects 0.000 abstract 1
- 238000010276 construction Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 239000002351 wastewater Substances 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000011953 bioanalysis Methods 0.000 description 1
- 238000001311 chemical methods and process Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005342 ion exchange Methods 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000004065 wastewater treatment Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D63/00—Apparatus in general for separation processes using semi-permeable membranes
- B01D63/08—Flat membrane modules
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D63/00—Apparatus in general for separation processes using semi-permeable membranes
- B01D63/08—Flat membrane modules
- B01D63/081—Manufacturing thereof
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D63/00—Apparatus in general for separation processes using semi-permeable membranes
- B01D63/08—Flat membrane modules
- B01D63/087—Single membrane modules
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D67/00—Processes specially adapted for manufacturing semi-permeable membranes for separation processes or apparatus
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D69/00—Semi-permeable membranes for separation processes or apparatus characterised by their form, structure or properties; Manufacturing processes specially adapted therefor
- B01D69/06—Flat membranes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D69/00—Semi-permeable membranes for separation processes or apparatus characterised by their form, structure or properties; Manufacturing processes specially adapted therefor
- B01D69/10—Supported membranes; Membrane supports
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D69/00—Semi-permeable membranes for separation processes or apparatus characterised by their form, structure or properties; Manufacturing processes specially adapted therefor
- B01D69/12—Composite membranes; Ultra-thin membranes
-
- 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
- C02F3/10—Packings; Fillings; Grids
- C02F3/102—Permeable membranes
-
- 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
- C02F3/1236—Particular type of activated sludge installations
- C02F3/1268—Membrane bioreactor systems
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Biodiversity & Conservation Biology (AREA)
- Microbiology (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
- Manufacturing & Machinery (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
The invention discloses a soft flat filter membrane element. The soft flat filter membrane element is characterized in that MBR (membrane bioreactor) microporous filter membranes which are supported by non-woven fabrics are arranged on a surface layer and a bottom layer of a membrane element, a drainage layer made of foam materials is arranged in the middle of the membrane element, the MBR microporous filter membranes supported by the non-woven fabrics on the surface layer and the bottom layer are combined with the drainage layer by hot-melt glue net membranes to form a filter core, the periphery of the filter core is sealed by means of hot-melting, stretching holes are formed in the middle of the filter core, the membrane element is fixed by the aid of the stretching holes through pipes, at least one water outlet is formed in the middle or an upper portion of the membrane element, water outlet channels are formed by the water outlets and gaskets, the gaskets are positioned by positioning holes formed in the peripheries of the water outlets, the membrane element is hermetically connected with the gaskets by glue, and a plurality of reinforcing structures which are subjected to hot-melting by the aid of ultrasonic waves or by means of compression are arranged in the middle of the membrane element. The soft flat filter membrane element has the advantages that the soft flat filter membrane element can be applied to treating sewage, and accordingly the sewage treatment efficiency can be improved; the soft flat filter membrane element can be reused at the normal temperature and has large water flow channels, backwash can be implemented, and the like.
Description
[technical field]
The present invention relates to a kind of sewage treating material technical field, be specifically related to a kind of flexible flat filtration membrane elements and manufacture method.
[background technology]
The modern life and industrial activity can produce substantial amounts of waste water, and discharge of wastewater needs reach country's emission request and could discharge after processing. Having a variety of to the mode of wastewater treatment, conventional is filter precipitate and separate physical treatment process, chemical transformation, physical-chemical process or bioanalysis etc. And dissolved contaminants can only be adopted absorption method, ion exchange, and adopt membrance separation sewage disposal, owing to the features such as it is efficient, room temperature operation, Reusability are more and more extensive in sewage second-level process range of application. It is thus desirable to provide a kind of simple in construction, easy to operate utilize membrane module Component units sewage disposal element.
[summary of the invention]
In order to overcome the deficiency of existing technology, the present invention provides a kind of flexible flat filtration membrane elements, by the soft flat membrane component of MBR that this method makes, it is applied in sewage disposal and can improve sewage treating efficiency, and can Reusability at normal temperatures, there is water flow passage big, can the feature such as backwash.
The adopted technical scheme of the present invention is: a kind of flexible flat filtration membrane elements, the MBR micropore filtering film that membrane component top layer and bottom are supported by non-woven fabrics, the middle drainage blanket adopting expanded material, the MBR micropore filtering film that top layer and bottom non-woven fabrics support is combined into filtration idiosome by hot-melt adhesive film and drainage blanket, filter idiosome surrounding hot-melting sealed, membrane component is circular, oval, rectangular configuration, membrane component corner is provided with triangle, rectangle or trapezoidal film phonograph seal, centre has circle, oval, rectangle or trapezoidal stretchable holes, stretchable holes poling fixes membrane component, it is circular that membrane component centre or upper section are provided with at least one, oval, rectangle, triangle or trapezoidal outlet, outlet constitutes exhalant canal with pad, it is formed around hole, 2-15 location locating shim at outlet, membrane component is connected with pad glue sealing, multiple reinforcement structures adopting ultrasound wave or pressurized heat to melt it is provided with in the middle of membrane component.
Micropore filtering film average pore size is 0.001-0.8 μm, it is preferable that 0.08-0.5 μm.
Membrane component is rectangular configuration, and length is 0.3-4m, and width is 0.2-2m, and membrane component is circular configuration diameter is 0.2-4m, and membrane component is ellipsoidal structure diameter 0.1-4m.
The expanded material of drainage blanket preferably has cancellated hole-opening foaming material, and thickness is 0.1-100mm, it is preferable that 1-4mm.
Reinforcement structure adopts the little plane geometric figure that multiple ultrasound wave or pressurized heat melt to strengthen, and geometric area is 0.5-1000mm2, it is preferable that 1-100mm2. Or adopt ultrasound wave or pressurized heat to melt into the reinforcement of the linear of interruption or camber line.
A kind of manufacture method of flexible flat filtration membrane elements, MBR micropore filtering film is combined into, by the tape casting or pressurization hot melt, the MBR micropore filtering film that non-woven fabrics supports with non-woven fabrics supporting layer, hot-melt adhesive film selects a kind of grid-like hot-melt adhesive film with lining paper, the non-woven fabrics fever sensation of the face of the MBR micropore filtering film first supported by non-woven fabrics good to PUR net glued membrane and compound melts compound and removes lining paper, MBR micropore filtering film with hot melt net and hole-opening foaming body pressurized heat melt composite membrane-forming element, or melt compound by hot-melt adhesive film and hole-opening foaming body heat and remove lining paper, MBR micropore filtering film melts composite membrane-forming element with the hole-opening foaming body pressurized heat with hot-melt adhesive film, membrane component surrounding seals and adopts ultrasound wave or hot fusion method to seal, corner is provided with film phonograph seal, stretchable holes is opened in centre, membrane component centre or upper section output the mouth of a river, hole, location is opened in outlet surrounding, perforate adopts cut or cutting die to hob, outlet water inlet or gas carry out backwash, sustain with being not damaged by during pressure load more than 0.15 bar, it is preferably greater than pressure in 0.2 bar.
The preferred plate compounding machine of hot melt equipment complex, when compound, upper and lower two-layer heats simultaneously, cools down, and the outlet of plate compounding machine membrane component connects coiler device.
The invention has the beneficial effects as follows: adopt the membrane component that manufacture method of the present invention makes to be applied to sewage disposal, simple in construction, assemble facility, can Reusability under room temperature, filter sewage excellent.
For making to be further understood that inventive feature and technology contents, refer to embodiment of the present invention and accompanying drawing, however appended drawings and Examples only for reference with use is described, be not that the present invention is any limitation as.
[accompanying drawing explanation]
Fig. 1 is present configuration schematic diagram;
Fig. 2 is A-A sectional view of the present invention;
1-membrane component; 2-stretchable holes; 3-outlet; 4-positions hole; 5-MBR micropore filtering film; 6-non-woven fabrics; 7-hot-melt adhesive film; 8-drainage blanket.
[detailed description of the invention]
Below in conjunction with embodiment, the present invention will be further described:
Embodiment 1, a kind of flexible flat filtration membrane elements, the MBR micropore filtering film (5) that membrane component (1) top layer and bottom are supported by non-woven fabrics (6), the middle drainage blanket (8) adopting expanded material, the MBR micropore filtering film (5) that top layer and bottom non-woven fabrics (6) support is combined into filtration idiosome by hot-melt adhesive film and drainage blanket (8), filter idiosome surrounding hot-melting sealed, membrane component (1) is circular, oval, rectangular configuration, membrane component (1) corner is provided with triangle, rectangle or trapezoidal film phonograph seal, centre has circle, oval, rectangle or trapezoidal stretchable holes, stretchable holes poling fixes membrane component (1), it is circular that membrane component (1) centre or upper section are provided with at least one, oval, rectangle, triangle or trapezoidal outlet (3), outlet (3) constitutes exhalant canal with pad, it is formed around hole, 2-15 location locating shim at outlet (3), membrane component (1) is connected with pad glue sealing, multiple reinforcement structures adopting ultrasound wave or pressurized heat to melt it is provided with in the middle of membrane component.MBR micropore filtering film average pore size is 0.001-0.8 μm, it is preferable that 0.08-0.5 μm. Membrane component is rectangular configuration, and length is 0.3-4m, and width is 0.2-2m, and membrane component is circular configuration diameter is 0.2-4m, and membrane component is ellipsoidal structure diameter 0.1-4m. The expanded material of drainage blanket preferably has cancellated hole-opening foaming material, and thickness is 0.1-100mm, it is preferable that 1-4mm. Reinforcement structure adopts the little plane geometric figure that multiple ultrasound wave or pressurized heat melt to strengthen, geometric area 0.5-1000mm2, it is preferable that 1-100mm2. Or adopt ultrasound wave or pressurized heat to melt into the reinforcement of the linear of interruption or camber line.
Embodiment 2, a kind of manufacture method of flexible flat filtration membrane elements, MBR micropore filtering film is combined into, by the tape casting or pressurization hot melt, the MBR micropore filtering film that non-woven fabrics supports with non-woven fabrics supporting layer, hot-melt adhesive film selects a kind of grid-like hot-melt adhesive film with lining paper, the non-woven fabrics fever sensation of the face of the MBR micropore filtering film first supported by non-woven fabrics good to PUR net glued membrane and compound melts compound and removes lining paper, MBR micropore filtering film with hot melt net and hole-opening foaming body pressurized heat melt composite membrane-forming element, or melt compound by hot-melt adhesive film and hole-opening foaming body heat and remove lining paper, MBR micropore filtering film melts composite membrane-forming element with the hole-opening foaming body pressurized heat with hot-melt adhesive film, membrane component surrounding seals and adopts ultrasound wave or hot fusion method to seal, corner is provided with film phonograph seal, stretchable holes is opened in centre, membrane component centre or upper section output the mouth of a river, hole, location is opened in outlet surrounding, perforate adopts cut or cutting die to hob, outlet water inlet or gas carry out backwash, sustain with being not damaged by during pressure load more than 0.15 bar, it is preferably greater than pressure in 0.2 bar. the preferred plate compounding machine of hot melt equipment complex, when compound, upper and lower two-layer heats simultaneously, cools down, and the outlet of plate compounding machine membrane component connects coiler device.
Adopt the membrane component that manufacture method of the present invention makes to be applied to sewage disposal, simple in construction, assemble facility, can Reusability under room temperature, filter sewage excellent.
But the embodiment that the above-mentioned only present invention is preferably feasible, non-therefore limit to scope, done various deformation according to above-described embodiment and accompanying drawing or apply mechanically all within this technical scheme protection domain.
Claims (6)
1. a flexible flat filtration membrane elements, it is characterized in that, the MBR micropore filtering film that membrane component top layer and bottom are supported by non-woven fabrics, the middle drainage blanket adopting expanded material, the MBR micropore filtering film that top layer and bottom non-woven fabrics support is combined into filtration idiosome by hot-melt adhesive film and drainage blanket, filter idiosome surrounding hot-melting sealed, membrane component is circular, oval, rectangular configuration, membrane component corner is provided with triangle, rectangle or trapezoidal film phonograph seal, centre has circle, oval, rectangle or trapezoidal stretchable holes, stretchable holes poling fixes membrane component, it is circular that membrane component centre or upper section are provided with at least one, oval, rectangle, triangle or trapezoidal outlet, outlet constitutes exhalant canal with pad, it is formed around hole, 2-15 location locating shim at outlet, membrane component is connected with pad glue sealing, multiple reinforcement structures adopting ultrasound wave or pressurized heat to melt it is provided with in the middle of membrane component.
2. a kind of flexible flat filtration membrane elements according to claim 1, is characterized in that, described MBR micropore filtering film average pore size is 0.001-0.8 μm, it is preferable that 0.08-0.5 μm.
3. a kind of flexible flat filtration membrane elements according to claim 1, is characterized in that, described membrane component is rectangular configuration, length is 0.3-4m, width is 0.2-2m, and membrane component is circular configuration diameter is 0.2-4m, and membrane component is ellipsoidal structure diameter 0.1-4m.
4. a kind of flexible flat filtration membrane elements according to claim 1, is characterized in that, the expanded material of described drainage blanket preferably has cancellated hole-opening foaming material, and thickness is 0.1-100mm, it is preferable that 1-4mm.
5. a kind of flexible flat filtration membrane elements according to claim 1, it is characterized in that, described reinforcement structure adopts the little plane geometric figure that multiple ultrasound wave or pressurized heat melt to strengthen, geometric area is 0.5-1000mm2, preferred 1-100mm2, or adopt ultrasound wave or pressurized heat to melt into the reinforcement of the linear of interruption or camber line.
6. the manufacture method of a flexible flat filtration membrane elements, it is characterized in that, MBR micropore filtering film is combined into, by the tape casting or pressurization hot melt, the MBR micropore filtering film that non-woven fabrics supports with non-woven fabrics supporting layer, hot-melt adhesive film selects a kind of grid-like hot-melt adhesive film with lining paper, the non-woven fabrics fever sensation of the face of the MBR micropore filtering film first supported by non-woven fabrics good to PUR net glued membrane and compound melts compound and removes lining paper, MBR micropore filtering film with hot melt net and hole-opening foaming body pressurized heat melt composite membrane-forming element, or melt compound by hot-melt adhesive film and hole-opening foaming body heat and remove lining paper, MBR micropore filtering film melts composite membrane-forming element with the hole-opening foaming body pressurized heat with hot-melt adhesive film, membrane component surrounding seals and adopts ultrasound wave or hot fusion method to seal, corner is provided with film phonograph seal, stretchable holes is opened in centre, membrane component centre or upper section output the mouth of a river, hole, location is opened in outlet surrounding, perforate adopts cut or cutting die to hob, outlet water inlet or gas carry out backwash, sustain with being not damaged by during pressure load more than 0.15 bar, it is preferably greater than pressure in 0.2 bar, the preferred plate compounding machine of hot melt equipment complex, when compound, upper and lower two-layer heats simultaneously, cooling, the outlet of plate compounding machine membrane component connects coiler device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610178906.1A CN105664725A (en) | 2016-03-28 | 2016-03-28 | Soft flat filter membrane element and method for manufacturing same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610178906.1A CN105664725A (en) | 2016-03-28 | 2016-03-28 | Soft flat filter membrane element and method for manufacturing same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105664725A true CN105664725A (en) | 2016-06-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610178906.1A Pending CN105664725A (en) | 2016-03-28 | 2016-03-28 | Soft flat filter membrane element and method for manufacturing same |
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| Country | Link |
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| CN (1) | CN105664725A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018205482A1 (en) * | 2017-05-11 | 2018-11-15 | 英诺激光科技股份有限公司 | Filtering film processed using laser and laser processing system |
| CN109647212A (en) * | 2018-12-31 | 2019-04-19 | 上海佐水环保科技有限公司 | A kind of soft plate film module of MBR |
| CN109647214A (en) * | 2018-12-31 | 2019-04-19 | 上海佐水环保科技有限公司 | A kind of soft plate film module of MBR |
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|---|---|---|---|---|
| EP1613418A1 (en) * | 2003-04-16 | 2006-01-11 | A3 Abfall-Abwasser-Anlagentechnik GmbH | Plate filtration module |
| CN202751957U (en) * | 2012-06-13 | 2013-02-27 | 三达膜科技（厦门）有限公司 | Multifunctional composite filter membrane plate |
| CN202876664U (en) * | 2012-10-12 | 2013-04-17 | 上海乐泽环境工程有限公司 | Plate-type membrane assembly for membrane bioreactor (MBR) process |
| CN104307375A (en) * | 2014-10-16 | 2015-01-28 | 上海禹澄环境科技有限公司 | Low-resistance short-flow and pollution-resistant flat sheet membrane |
| CN204417209U (en) * | 2014-12-31 | 2015-06-24 | 北京清大国华环保科技有限公司 | A kind of self-supporting immersed type flat plate membrane component |
| CN205495358U (en) * | 2016-03-28 | 2016-08-24 | 杭州青澜环保科技有限公司 | Soft flat filtering membrane element |
-
2016
- 2016-03-28 CN CN201610178906.1A patent/CN105664725A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1613418A1 (en) * | 2003-04-16 | 2006-01-11 | A3 Abfall-Abwasser-Anlagentechnik GmbH | Plate filtration module |
| CN202751957U (en) * | 2012-06-13 | 2013-02-27 | 三达膜科技（厦门）有限公司 | Multifunctional composite filter membrane plate |
| CN202876664U (en) * | 2012-10-12 | 2013-04-17 | 上海乐泽环境工程有限公司 | Plate-type membrane assembly for membrane bioreactor (MBR) process |
| CN104307375A (en) * | 2014-10-16 | 2015-01-28 | 上海禹澄环境科技有限公司 | Low-resistance short-flow and pollution-resistant flat sheet membrane |
| CN204417209U (en) * | 2014-12-31 | 2015-06-24 | 北京清大国华环保科技有限公司 | A kind of self-supporting immersed type flat plate membrane component |
| CN205495358U (en) * | 2016-03-28 | 2016-08-24 | 杭州青澜环保科技有限公司 | Soft flat filtering membrane element |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018205482A1 (en) * | 2017-05-11 | 2018-11-15 | 英诺激光科技股份有限公司 | Filtering film processed using laser and laser processing system |
| CN109647212A (en) * | 2018-12-31 | 2019-04-19 | 上海佐水环保科技有限公司 | A kind of soft plate film module of MBR |
| CN109647214A (en) * | 2018-12-31 | 2019-04-19 | 上海佐水环保科技有限公司 | A kind of soft plate film module of MBR |
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| PB01 | Publication | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20161208 Address after: 200040 Shanghai, Shanghai, Shanghai Road, No. 785, room 22, building 970 Applicant after: SHANGHAI REAL WATER ENVIRONMENTAL PROTECTION TECHNOLOGY CO.,LTD. Address before: Hangzhou City, Zhejiang province 310000 Kangtai Qianjiang Economic Development Zone, Road No. 185 building 14 Applicant before: HANGZHOU QINGLAN ENVIRONMENTAL PROTECTION TECHNOLOGY Co.,Ltd. |
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| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160615 |
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