CN201932948U - High antipollution MBR (membrane bio-reactor) membrane component - Google Patents

High antipollution MBR (membrane bio-reactor) membrane component Download PDF

Info

Publication number
CN201932948U
CN201932948U CN2010206762260U CN201020676226U CN201932948U CN 201932948 U CN201932948 U CN 201932948U CN 2010206762260 U CN2010206762260 U CN 2010206762260U CN 201020676226 U CN201020676226 U CN 201020676226U CN 201932948 U CN201932948 U CN 201932948U
Authority
CN
China
Prior art keywords
membrane
film silk
mbr
utility
film
Prior art date
Legal status (The legal status 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 status listed.)
Expired - Lifetime
Application number
CN2010206762260U
Other languages
Chinese (zh)
Inventor
文剑平
陈亦力
王力
关晶
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Yunnan Chengtou Origin Water Technology Co., Ltd.
Original Assignee
Beijing Originwater Membrane Technology Co Ltd
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
Application filed by Beijing Originwater Membrane Technology Co Ltd filed Critical Beijing Originwater Membrane Technology Co Ltd
Priority to CN2010206762260U priority Critical patent/CN201932948U/en
Application granted granted Critical
Publication of CN201932948U publication Critical patent/CN201932948U/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02WCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W10/00Technologies for wastewater treatment
    • Y02W10/10Biological treatment of water, waste water, or sewage

Landscapes

  • Separation Using Semi-Permeable Membranes (AREA)

Abstract

The utility model relates to a high antipollution MBR (membrane bio-reactor) membrane component used for treating wastewater. The high antipollution MBR membrane component comprises strong stiff light membrane wires (1), component supports (2), an aerated type water collecting membrane box (3) and a membrane wire protecting plate/net (4). When the wastewater is treated, the surfaces of the membrane wires of the MBR membrane component are effectively scoured through aeration, so that the attached pollutants are strongly sheared, the rate of concentration polarization is greatly slowed down, the pollutants have low probability of accumulating among the membrane wires, the pollution speed is remarkably slowed down, and the cleaning period is prolonged, which improves the efficiency, prolongs the service life of the membrane, and reduces the energy consumption.

Description

A kind of high resistant to pollution MBR membrane module
[technical field]
The utility model belongs to technical field of waste water processing.More specifically, the utility model relates to a kind of high resistant to pollution MBR membrane module that is used for wastewater treatment.
[background technology]
MBR (membrane bioreactor, membrane biological reactor) technology is a kind of high-efficiency sewage treatment process that traditional biological treatment and membrane separation technique are combined, this process structure is simple than traditional technology, main processing structures are MBR membrane biological reaction pond, the flow process compactness, the necessary structures of some in the traditional technology have been removed, as second pond etc., can be designed to various ways, ground type, semi-underground type and underground type also can be designed to incorporate sewage disposal device, and it is good to have suitability, take up an area of and economize, be easy to characteristics such as automatization control; And because the centrifugation of MBR film, can keep the sewage mixed solution of high density in the pond, have very high volumetric loading, sludge loading is low, not influenced by the mud expansible, and anti-alluviation performance is good, have the long residence time, effluent quality is high-quality relatively, and application prospect ten is wide.
In the MBR practical application, membrane module is the curtain formula in the MBR reactor, be arranged in side by side in the reactor, high density mixed solution in the membrane biological reaction pond is because the centrifugation of film, pollutent and other microorganism are left in the reaction tank, treated water then passes through negative pressure-pumping, qualified discharge is in treating processes, owing to reasons such as negative pressure-pumpings, have the concentration polarization phenomenon takes place on film silk surface, along with the carrying out of suction, this phenomenon is more and more stronger, and increasing colloidal solid and other organic-inorganic pollutent can be attached to film silk surfaces, even enter inside, film silk aperture, thereby cause the rising of film silk suction negative pressure; Simultaneously since the membrane sepn process continue carry out, sewage mixed liquid concentration in the membrane biological reaction pond is more and more high, make mixed solution viscosity increase, reduced aeration to film silk scouring intensity, more aggravated the concentration polarization phenomenon, make swabbing pressure sharply raise, in order to alleviate this situation, certainly will to strengthen aeration rate, increase the dissolved oxygen in the mixed solution, strengthen scouring intensity the film silk, shorten the film silk cleaning interval simultaneously, could guarantee the normal operation of MBR system, increase processing cost virtually, strengthen energy consumption.
It is little that MBR technology has an occupation area of equipment, easily be automated advantages such as control, but the film silk pollutes easily, may cause very big inconvenience to MBR process system operational administrative, makes its processing cost increase, even be higher than the processing cost of traditional technology.So the utility model people has carried out a large amount of experimental studies at the defective that prior art exists, and finally makes the utility model.
[utility model content]
[technical problem that will solve]
The purpose of this utility model provides a kind of high resistant to pollution MBR membrane module that is used for wastewater treatment.
[technical scheme]
The utility model is achieved through the following technical solutions.
The utility model relates to a kind of high resistant to pollution MBR membrane module that is used for wastewater treatment.The resistant to pollution MBR membrane module of described height is made up of with film silk backplate or net 4 strong rigidity light film silk 1, assembly support 2, the aeration type bellows 3 that catchments, described aeration type catchment bellows 3 therebetween and/or both sides be provided with the solarization air cap of evenly arranging, described assembly support 2 one ends are fixed on aeration type and catchment in film 3 boxes, described film silk backplate or net 4 are fixed on the assembly support 2, in order to the fixing and described strong rigidity light film silk 1 of support; Described strong rigidity light film silk 1 places in the described MBR film spare, described strong rigidity light film silk 1 has the rigidity light liner, and its end is fixed on aeration type and catchments in the bellows 3, and the other end is for can the floating free end that can arbitrarily swing again, and, have upright and flotation property by shutoff.
According to a kind of preferred implementation of the present utility model, no matter described strong rigidity light film silk 1 all has good upright flotation property in water or in air.
According to another kind of preferred implementation of the present utility model, described film silk is selected from polyvinylidene difluoride (PVDF), polyvinyl chloride, polysulfones, polyethersulfone, polyethylene, polypropylene, polyacrylonitrile or tetrafluoroethylene silk.
According to another kind of preferred implementation of the present utility model, described film silk is arranged with arrangement mode arranged side by side.
According to another kind of preferred implementation of the present utility model, described assembly support 2 usefulness plastics or steel are made.
According to another kind of preferred implementation of the present utility model, described film silk backplate or net 4 usefulness polyvinylidene difluoride (PVDF), polypropylene, polyvinyl chloride, polymeric amide, polystyrene, polyvinyl chloride, polysulfones, polyethersulfone or porous plastics are made.
According to another kind of preferred implementation of the present utility model, described film silk backplate or net 4 usefulness polyvinylidene difluoride (PVDF), polyvinyl chloride, polysulfones or polyethersulfone are made.
According to another kind of preferred implementation of the present utility model, the described aeration type bellows 3 that catchments is square, rectangle, parallelogram or trapezoidal box.
Below the utility model will be described in more detail.
The utility model relates to a kind of high resistant to pollution MBR membrane module that is used for wastewater treatment.The resistant to pollution MBR membrane module of described height is made up of with film silk backplate or net 4 strong rigidity light film silk 1, assembly support 2, the aeration type bellows 3 that catchments, described aeration type catchment bellows 3 therebetween and/or both sides be provided with the solarization air cap of evenly arranging, described assembly support 2 one ends are fixed on aeration type and catchment in film 3 boxes, described film silk backplate or net 4 are fixed on the assembly support 2, in order to the fixing and described strong rigidity light film silk 1 of support; Described strong rigidity light film silk 1 places in the described MBR film spare, described strong rigidity light film silk 1 has the rigidity light liner, and its end is fixed on aeration type and catchments in the bellows 3, and the other end is for can the floating free end that can arbitrarily swing again, and, have upright and flotation property by shutoff.
According to the utility model, described strong rigidity light film silk should be appreciated that it is the proportion of the proportion of this film less than water, promptly less than 1g/cm 3, and its mechanical rigid is very high.Preferably, this film can keep plumbness in water, is unfavorable for deposition like this, thereby can avoid the film silk to break and fracture, improves membrane efficiency and utilization ratio.
Described film silk is selected from polyvinylidene difluoride (PVDF), polyvinyl chloride, polysulfones, polyethersulfone, polyethylene, polypropylene, polyacrylonitrile or tetrafluoroethylene silk.Preferably, described film silk is selected from polyvinylidene difluoride (PVDF), polyvinyl chloride, polyethylene, polypropylene, polyacrylonitrile or tetrafluoroethylene silk.More preferably, described film silk is selected from polyvinylidene difluoride (PVDF), polyethylene, polypropylene, polyacrylonitrile or tetrafluoroethylene silk.
Described film silk all is the product sold on market at present that uses in the present technique field.
Described strong rigidity light film silk places in the described MBR film spare, and described strong rigidity light film silk has the rigidity light liner.
According to the utility model, described rigidity light liner should be appreciated that it is a kind ofly can significantly strengthen described film silk inflexible material, this material light weight and have favorable rigidity.
In the utility model, described rigidity light liner for example can be at normally used in the art plastics.
Described plastics are selected from polyvinylidene difluoride (PVDF), polypropylene, polyvinyl chloride, polymeric amide, polystyrene, polyvinyl chloride, polysulfones, polyethersulfone or porous plastics.
Preferably, described plastics are selected from polyvinylidene difluoride (PVDF), polyvinyl chloride, polysulfones or polyether sulfone plastic.
Have the proportion of the strong rigidity light film silk of rigidity light liner should be less than the proportion of water, like this, an end of described film silk be fixed on aeration type when catchmenting in the bellows, and its other end can swim in the water, can also arbitrarily swing.
According to the utility model, described assembly support should be appreciated that it is the skeleton that is used to support the utility model whole M BR film group device, guarantee that catchment bellows and film silk backplate or net of described strong rigidity light film silk, aeration type forms an integral body, reaches the long-term continuously and stable operation of waste water treatment process.
Described assembly support can use anyly has the material of certain intensity to make, and preferably uses plastics or steel to make.
According to the utility model, described film silk backplate or net should be appreciated that it is to be used for fixing and the strong rigidity light film of support the utility model silk, described strong rigidity light film silk can not drifted about in the water, and guarantee that described strong rigidity light film silk can floatingly can arbitrarily swing again, do not twine mutually, thereby more effectively remove water pollutant.
Described film silk backplate or net are made with polyvinylidene difluoride (PVDF), polypropylene, polyvinyl chloride, polymeric amide, polystyrene, polyvinyl chloride, polysulfones, polyethersulfone or porous plastics.
According to another kind of preferred implementation of the present utility model, described film silk backplate or net are made with polyvinylidene difluoride (PVDF), polyvinyl chloride, polysulfones or polyethersulfone.
When using described film silk screen, mesh generally should be 0.1~0.4mm, preferably 0.2~0.3mm.
The described aeration type bellows that catchments is a kind of square, rectangle, parallelogram or trapezoidal box.Described aeration type catchment bellows therebetween and/or both sides be provided with the solarization air cap of evenly arranging.
Those skilled in the art can be easy to select the quantity and the aeration rate of solarization air cap according to pending water quality and the water yield.
In MBR membrane module of the present utility model, described strong rigidity light film silk mounting means is identical with traditional curtain type membrane, and the film group device of use is common film group device, and each film group device is made up of a plurality of MBR membrane modules.For example, membrane module length is 1550mm, and width is 360mm, and bellows thickness is 30mm, the useful length of film silk is 1450mm, described strong rigidity light film silk arrangement mode is single 48,6 row, 288 rhizoids altogether, individual thread diameter 2.5mm, 1.5 square metres of assembly areas, each film group device are put four the utility model MBR membrane modules, 6 square metres of the total areas.
With respect to the curtain type film assembly of prior art, the film silk of MBR membrane module of the present utility model has only an end in aeration type catchments bellows, and its other end is by shutoff, but does not enclose in the bellows, freely floats diffusing.The utility model film silk can not twine mutually because of described rigidity light liner, can be fine floating, can not sink to the bottom, have very big degree of freedom, therefore, the utility model film silk in aeration process with high frequency very with amplitude of fluctuation swing.Like this, during aeration more effective washing away carried out on the utility model film silk surface, the pollutent that adheres to is played the intensive shearing action, so slow down the speed of long-pendingization of concentration difference to a great extent.Compare with existing film silk both-end fixed membrane module, MBR membrane module of the present utility model can obviously delay to pollute, and reduces aeration, prolongs the cleaning interval.Thereby reduced energy consumption.
[beneficial effect]
The beneficial effects of the utility model are as follows:
MBR membrane module of the present utility model makes described film silk be vertical levitated state.When disposing of sewage, aeration carries out more effective washing away to the utility model film silk surface, the pollutent that adheres to is played the intensive shearing action, so slow down the speed of long-pendingization of concentration difference to a great extent, pollutent is difficult for assembling between the film silk, obviously delays to pollute, prolong the cleaning interval, thereby raise the efficiency, prolong the work-ing life of film, thereby reduced energy consumption.
[description of drawings]
Fig. 1 is a high anti-soil mud membrane module synoptic diagram of the present utility model
Fig. 2 is the partial schematic diagram of film silk backplate/net
The strong rigidity light film of 1-silk; The 2-assembly support; The 3-aeration type bellows that catchments; 4-film silk backplate or net.
[embodiment]
To illustrate in greater detail the utility model by following embodiment.
Embodiment 1
The resistant to pollution MBR membrane module of height of the present utility model as shown in Figure 1, it is made up of with film silk backplate or net 4 strong rigidity light film silk 1, assembly support 2, the aeration type bellows 3 that catchments.
Catchment bellows 3 of described aeration type is long 1600mm, wide 400mm, and the rectangular plastic magazine of thickness 40mm is provided with the solarization air cap of evenly arranging with both sides therebetween, and valve, reducing valve that these solarization air caps pass through separately are connected with source of the gas.Aperture by the control reducing valve is regulated the aeration flow.
Described assembly support 2 is a rigid plastics, and its end is fixed on aeration type and catchments in film 3 boxes, and described film silk backplate 4 is polyvinylidene difluoride (PVDF), and it is fixed on the rigid plastics assembly support 2, in order to fixing with help described strong rigidity light film silk 1.
Described strong rigidity light film silk 1 places in the described MBR film spare, and it has polyvinylidene difluoride (PVDF) rigidity light liner, and its end is fixed on aeration type and catchments in the bellows 3, and the other end is for can the floating free end that can arbitrarily swing again, and by shutoff.
The resistant to pollution MBR assembly of height of the present utility model mounting means in use is identical with the mounting means of the curtain type membrane of prior art, the long 1550mm of the membrane module that uses in the present embodiment, wide 360mm, bellows thickness 30mm, the useful length of film silk is 1450mm, film silk arrangement mode is single 48,6 rows, 288 rhizoids altogether, individual thread diameter 2.5mm, 1.5 square metres of this assembly areas, each group device is placed four the utility model assemblies, and the total area of the high antipollution MBR of the utility model assembly is 6 square metres like this.
Resulting group of device is used for day urban wastewater treatment firm of 1500 tons of waste water of processing.When the utility model assembly was installed, inboardend was downward, and free end upwards protects the film silk with film silk sheath during installation, and the sheath of dismantling after installing is positioned in the pending waste water.Meanwhile, use the parallel simultaneously test of the curtain type film assembly group device that uses in the prior art.
The Analysis Results of Water Quality of pending waste water is listed in table 1.
Table 1
Two kinds of group devices move six months simultaneously, and operational conditions and parameters are identical.
The effluent flux of two kinds of group devices be controlled at 25 liters every square metre per hour, 80 cubic metres every square metre of aquifer yield 150 liter per hour, aeration intensity per hour, the sectional area of group device be 0.18 square metre, aeration total amount be 14.4 cubic metres per hour.
Along with the carrying out of test, prior art curtain type film assembly group device is installed, pressure raises about 6 weeks in cycle, and pressure rises to 0.35Mp by 0.004Mp, uses the 1000ppm aqueous sodium hypochlorite solution to clean at every turn.It is the 10-30 mg/litre that the effluent characteristics parameter reaches COD, turbidity≤1.0NUT.
Wherein:
COD adopts the quick degestion method of COD to measure.
Turbidity is to adopt the HACH turbidimeter to measure.
Use high pollution-resistant membrane component groups device of the present utility model, the pressure rising cycle is about one month, and pressure rises to 0.035Mp by 0.004Mp, and cleaning way is identical with the normal film assembly; It is the 10-25 mg/litre that the effluent quality parameter reaches COD, turbidity≤1.0NUT.
Embodiment 2
According to testing with the same manner of embodiment 1, just this embodiment per hour is reduced to 40 cubic metres every square metre with the group device aeration intensity of high pollution-resistant membrane assembly, and the aeration total amount is reduced to 7 square metres.The operating parameter contrast:
Figure BDA0000039886630000081
In the table:
Sludge concentration is to adopt the GB assay method to measure.
From embodiment 1, embodiment 2 as can be seen, use the group device of the utility model membrane module, in pressure change and wash remarkable advantages was all arranged on the cycle, and the water outlet parameter is identical with common component, does not influence effluent quality, but has greatly saved energy consumption.

Claims (3)

1. one kind high resistant to pollution MBR membrane module, it is characterized in that it is made up of catchment bellows (3) and film silk backplate/net (4) of strong rigidity light film silk (1), assembly support (2), aeration type, described aeration type catchment bellows (3) therebetween and/or both sides be provided with the solarization air cap of evenly arranging, described assembly support (2) one ends are fixed on aeration type and catchment in film (3) box, described film silk backplate or net (4) are fixed on the assembly support (2), in order to fixing and support described strong rigidity light film silk (1); Described strong rigidity light film silk (1) places in the described MBR film spare, described strong rigidity light film silk (1) has the rigidity light liner, its end is fixed on aeration type and catchments in the bellows (3), and the other end is for can the floating free end that can arbitrarily swing again, and by shutoff.
2. pollution-resistant membrane assembly according to claim 1 is characterized in that described film silk arranges with arrangement mode arranged side by side.
3. pollution-resistant membrane assembly according to claim 1 is characterized in that the described aeration type bellows (3) that catchments is square, rectangle, parallelogram or trapezoidal box.
CN2010206762260U 2010-12-22 2010-12-22 High antipollution MBR (membrane bio-reactor) membrane component Expired - Lifetime CN201932948U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2010206762260U CN201932948U (en) 2010-12-22 2010-12-22 High antipollution MBR (membrane bio-reactor) membrane component

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2010206762260U CN201932948U (en) 2010-12-22 2010-12-22 High antipollution MBR (membrane bio-reactor) membrane component

Publications (1)

Publication Number Publication Date
CN201932948U true CN201932948U (en) 2011-08-17

Family

ID=44444481

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2010206762260U Expired - Lifetime CN201932948U (en) 2010-12-22 2010-12-22 High antipollution MBR (membrane bio-reactor) membrane component

Country Status (1)

Country Link
CN (1) CN201932948U (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102086057A (en) * 2010-12-22 2011-06-08 北京碧水源膜科技有限公司 High-antipollution MBR (Membrane Bio-Reactor) membrane module
CN104117285A (en) * 2014-07-28 2014-10-29 枫科(北京)膜技术有限公司 Encapsulating method of MBR unit
CN112299555A (en) * 2020-01-16 2021-02-02 广东宇唐环保设备有限公司 High-pollution-resistance MBR (membrane bioreactor) membrane assembly for wastewater treatment

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102086057A (en) * 2010-12-22 2011-06-08 北京碧水源膜科技有限公司 High-antipollution MBR (Membrane Bio-Reactor) membrane module
CN104117285A (en) * 2014-07-28 2014-10-29 枫科(北京)膜技术有限公司 Encapsulating method of MBR unit
CN104117285B (en) * 2014-07-28 2016-08-24 枫科(北京)膜技术有限公司 A kind of method for packing of MBR film group device
CN112299555A (en) * 2020-01-16 2021-02-02 广东宇唐环保设备有限公司 High-pollution-resistance MBR (membrane bioreactor) membrane assembly for wastewater treatment

Similar Documents

Publication Publication Date Title
CN103723820A (en) Solar aeration-plant bed supported device with biological membrane
CN106145343B (en) A kind of compound anaerobic membrane bioreactor and application thereof
CN203469563U (en) Device for clearing float sludge of sedimentation basin
CN203360102U (en) Membrane bioreactor with low pollution and biological enhancement
CN201932948U (en) High antipollution MBR (membrane bio-reactor) membrane component
CN111362406A (en) Suspended solar integrated water purification equipment and water purification method
CN202785799U (en) Novel hydrolyzing and acidifying device
CN1872399A (en) Outer installation type gas lift circulation membrane splitter
CN101037282A (en) Water treatment new combined technique with high purification function
CN202046963U (en) Flat panel membrane biological reaction sewage treatment device based on glass fiber reinforced plastic
CN104876327B (en) Folded plate membrane assembly for retarding membrane pollution in membrane bioreactor
CN202297596U (en) Reaction device for producing biogas by virtue of fixed bed anaerobic digestion
CN111470705A (en) System for little algae processing of photovoltaic self-energy supply MBR membrane tail liquid of raising pigs
CN201648106U (en) Flat plate-type membrane bioreactor (MBR) processing equipment of coking wastewater
CN203807228U (en) Sewage treatment device of composite aerobiotic membrane bioreactor
CN102086057A (en) High-antipollution MBR (Membrane Bio-Reactor) membrane module
CN202725040U (en) Embedded-type hollow fiber membrane module and integrated membrane bioreactor
CN201990580U (en) Recycle car washing waste water treating system
CN102600729A (en) Cleaning assembly for flat sheet membrane
CN211570383U (en) Sewage draining port water treatment equipment for urban drainage pipeline
CN114436472A (en) Movable advanced sewage treatment system based on embedded microorganism construction method
CN104163542B (en) Sanitary sewage filtering device
CN113321305A (en) Micro-power aeration water body purification device
CN103922535B (en) A kind of MBMBR sewerage disposing device
CN201809253U (en) Internal-external membrane filtration and separation sewage treatment device

Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
ASS Succession or assignment of patent right

Owner name: YUNNAN CHENGTOU ORIGIN WATER TECHNOLOGY CO., LTD.

Free format text: FORMER OWNER: BEIJING BISHUI YUANMO SCIENCE AND TECHNOLOGY CO., LTD.

Effective date: 20110913

C41 Transfer of patent application or patent right or utility model
COR Change of bibliographic data

Free format text: CORRECT: ADDRESS; FROM: 101407 HUAIROU, BEIJING TO: 650106 KUNMING, YUNNAN PROVINCE

TR01 Transfer of patent right

Effective date of registration: 20110913

Address after: 650106 Yunnan Province, Kunming City Haiyuan Road No. 6 building 11 floor high tech investment

Patentee after: Yunnan Chengtou Origin Water Technology Co., Ltd.

Address before: 101407 Beijing city Huairou District Yanqi Economic Development Zone Park south two Street No. 4 2 floor

Patentee before: Beijing Bishui Yuanmo Science and Technology Co., Ltd.

CP03 Change of name, title or address
CP03 Change of name, title or address

Address after: 650101 Yunnan city of Kunming province M1-4 high tech Development Zone, Road No. 1088 and block Haiyuan international A building 6 floor

Patentee after: Yunnan Yunshui Construction Engineering Co. Ltd.

Address before: 650106 Yunnan Province, Kunming City Haiyuan Road No. 6 building 11 floor high tech investment

Patentee before: Yunnan Chengtou Origin Water Technology Co., Ltd.

CX01 Expiry of patent term
CX01 Expiry of patent term

Granted publication date: 20110817