CN202343006U - Two-stage filtration system suitable to remove suspended matters in biomembrane treatment process - Google Patents
Two-stage filtration system suitable to remove suspended matters in biomembrane treatment process Download PDFInfo
- Publication number
- CN202343006U CN202343006U CN2011204653649U CN201120465364U CN202343006U CN 202343006 U CN202343006 U CN 202343006U CN 2011204653649 U CN2011204653649 U CN 2011204653649U CN 201120465364 U CN201120465364 U CN 201120465364U CN 202343006 U CN202343006 U CN 202343006U
- Authority
- CN
- China
- Prior art keywords
- filtration
- rotary
- hollow
- filter
- fiber
- 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 - Fee Related
Links
- 238000001914 filtration Methods 0.000 title claims abstract description 74
- 238000000034 method Methods 0.000 title claims abstract description 25
- 230000008569 process Effects 0.000 title claims abstract description 21
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 63
- 239000000835 fiber Substances 0.000 claims abstract description 41
- 239000004744 fabric Substances 0.000 claims abstract description 14
- 238000011001 backwashing Methods 0.000 claims description 22
- 230000005540 biological transmission Effects 0.000 claims description 6
- 239000012528 membrane Substances 0.000 claims description 6
- 239000011148 porous material Substances 0.000 claims description 5
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- 239000000126 substance Substances 0.000 claims 1
- 239000010865 sewage Substances 0.000 abstract description 22
- 239000007787 solid Substances 0.000 description 12
- 238000004062 sedimentation Methods 0.000 description 10
- 238000005516 engineering process Methods 0.000 description 8
- 238000012545 processing Methods 0.000 description 8
- 238000001556 precipitation Methods 0.000 description 7
- 239000010802 sludge Substances 0.000 description 6
- 238000000926 separation method Methods 0.000 description 5
- 239000007788 liquid Substances 0.000 description 4
- 239000002893 slag Substances 0.000 description 4
- 230000007547 defect Effects 0.000 description 3
- 238000005265 energy consumption Methods 0.000 description 3
- 230000004907 flux Effects 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 230000009467 reduction Effects 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000003344 environmental pollutant Substances 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 231100000719 pollutant Toxicity 0.000 description 2
- 239000000725 suspension Substances 0.000 description 2
- 206010033799 Paralysis Diseases 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- RHZUVFJBSILHOK-UHFFFAOYSA-N anthracen-1-ylmethanolate Chemical compound C1=CC=C2C=C3C(C[O-])=CC=CC3=CC2=C1 RHZUVFJBSILHOK-UHFFFAOYSA-N 0.000 description 1
- 239000003830 anthracite Substances 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 239000003610 charcoal Substances 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000010842 industrial wastewater Substances 0.000 description 1
- 238000005374 membrane filtration Methods 0.000 description 1
- 238000001471 micro-filtration Methods 0.000 description 1
- 238000001728 nano-filtration Methods 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- 239000002957 persistent organic pollutant Substances 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 238000009288 screen filtration Methods 0.000 description 1
- 239000013049 sediment Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000000108 ultra-filtration Methods 0.000 description 1
- 238000004065 wastewater treatment Methods 0.000 description 1
Images
Landscapes
- Filtering Materials (AREA)
- Biological Treatment Of Waste Water (AREA)
Abstract
The utility model discloses a two-stage filtration system suitable to remove suspended matters in a biomembrane treatment process, and belongs to sewage treatment equipment. The system comprises a rotary filtration net and a fiber filtration pond which are communicated sequentially each other, wherein the rotary filtration net comprises a water collection pond and a hollow filtration barrel which is arranged in the water collection pond and capable of rotating; the water inlet of the rotary filtration net is communicated with the inner part of the hollow filtration barrel and serves as a water inlet of the system; the water outlet of the fiber filtration pond serves as a water outlet of the system; microhole fiber filtration cloth is arranged in the fiber filtration pond; and the filtration aperture of the hollow filtration barrel of the rotary filtration net is greater than that of the microhole fiber filtration cloth in the fiber filtration pond. The two-stage filtration system occupies a small area, is compactly constructed, low in investment and running cost, high in automation degree and easy to manage and runs easily.
Description
Technical Field
The utility model relates to a sewage treatment device field especially relates to a two-stage filtration system suitable for get rid of the suspended solid in biomembrane processing technology.
Background
The biomembrane method is one of the most widely applied sewage treatment processes at present, and plays an important role in the field of urban sewage treatment and industrial wastewater treatment of various industries for a long time. In recent years, sewage treatment in small towns and rural areas in China becomes a hotspot in the water treatment industry, and compared with an activated sludge process, the biofilm process is more suitable for the economic development level and the sewage characteristics of the small towns and rural areas due to the advantages of strong adaptability to water quality and water quantity, easiness in maintenance and operation, energy conservation and the like, so that the biofilm process has wide application prospects in the field. The sludge produced by the biomembrane treatment process is mainly composed of an aged biomembrane fallen off from a carrier, contains more animal components, has larger individual and specific gravity of sludge particles, has good sedimentation performance and is easy for solid-liquid separation, and the form of the sludge is different from that of the sludge produced by an activated sludge method.
At present, common methods for removing suspended matters in sewage include precipitation, filtration, combination of the two and the like.
The sludge-water separation in the sewage treatment is mainly realized by a secondary sedimentation tank arranged after the biochemical treatment process, the forms of the secondary sedimentation tank mainly comprise a horizontal flow type, a radial flow type, a vertical flow type, an inclined plate (pipe) and the like, and the effluent suspended matters can basically reach the discharge standard under the conditions of reasonable design and stable operation. The sedimentation tanks of the types are widely applied to large and medium-sized urban sewage treatment plants, but when the sedimentation tanks are applied to small-scale sewage treatment, various defects are often caused: if the floor area of the advection and radiation flow sedimentation tank is large, the capital investment is high; the vertical flow sedimentation tank has small area but large depth and is difficult to construct; the inclined plate (pipe) sedimentation tank can greatly improve the sedimentation efficiency and shorten the sedimentation time, but has the defects of easy scaling or long biomembrane, large maintenance workload, short service life of plate (pipe) materials and the like. Therefore, it is not suitable to apply the precipitation technology to the sewage treatment of small towns.
The filtration mainly refers to a process of realizing solid-liquid separation through a medium in water treatment, and the basic principle is that under the action of pressure difference, liquid in suspension permeates through the filtration medium, and solid particles are intercepted by the medium, so that the separation of the liquid and the solid is realized. According to the nature of the filtering medium, the filtering can be divided into four forms, such as woven material (such as filter cloth and filter screen) filtering, porous solid (such as ceramic, porous plastic and the like) filtering, stacked medium (such as sand, anthracite, charcoal and the like) filtering, and high molecular porous membrane (such as microfiltration, ultrafiltration, nanofiltration and the like) filtering. The precision of intercepting suspended matters by the filtering process is often higher than that of a precipitation process, and the filtering process can be completely used as a proper technology for removing the suspended matters from the aspect of treatment effect, but the filtering process is directly adopted behind a biochemical system, a large amount of suspended matters in sewage pollute and block a filtering medium in a short period, the water flux of the medium is reduced, frequent back washing and the service life of the filtering medium are shortened, and the energy consumption and the operating cost are increased by adopting membrane filtration. Therefore, the filtration process is often used as a subsequent advanced treatment means of the precipitation process to ensure that the effluent suspension reaches standards. However, this leads to an increase in investment and running costs and a complication in operation management.
It can be seen from the above that the requirement of standard discharge of suspended matters in effluent can be met by adopting precipitation, filtration or combination of the precipitation and the filtration, but for small-scale sewage treatment, because of the defects in the aspects of land occupation, investment, operation and the like, the method is difficult to popularize and apply.
SUMMERY OF THE UTILITY MODEL
The embodiment of the utility model provides a two-stage filtration system suitable for get rid of the suspended solid in biomembrane processing technology can solve and is applied to the problem that precipitation equipment area is big, investment cost is high, the operation is complicated that get rid of the suspended solid existence through sediment, filtration or the two combination mode in the biomembrane technology at present. The filtering system has the advantages of small floor area, low capital investment and operating cost, short processing time and simple operation and management.
In order to solve the above problem, the utility model provides a technical scheme as follows:
the embodiment of the utility model provides a two-stage filtration system suitable for get rid of the suspended solid in biomembrane processing technology, this system includes: the rotary filter screen and the fiber filter tank are communicated in sequence; wherein,
the rotary filter screen comprises a water collecting tank and a rotatable hollow filter cylinder arranged in the water collecting tank, a water inlet of the rotary filter screen is communicated with the interior of the hollow filter cylinder, and a water inlet of the rotary filter screen is used as a water inlet of the system;
the water outlet of the fiber filter tank is used as the water outlet of the system, and microporous fiber filter cloth is arranged in the fiber filter tank.
According to the technical scheme who provides above-mentioned, the utility model discloses embodiment provides a two-stage filtration system, through rotary screen and the cooperation of fibre filtering pond, can form the two-stage and filter the pollutant of getting rid of thickness, subtlety difference. The filtering system has the advantages of simple structure, small occupied area, low operation cost and convenient maintenance, and is particularly suitable for being used in a biological membrane treatment system.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the description below are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a filtering system according to an embodiment of the present invention;
fig. 2 is a schematic application diagram of a filtering system according to an embodiment of the present invention;
the names of the components corresponding to the reference numerals in the drawings are as follows: 10-rotating the filter screen; 20-a fiber filter; 1-a water collecting tank; 2-a hollow filter cartridge; 3-a rotating shaft; 4-a transmission chain; 5-a speed reduction type driving device; 6-a backwash pipe; 7-a slag discharge port of the water collecting tank; 8-a slag discharge port of the hollow filter cylinder; 201-a tank body of a fiber filter tank; 202-microporous fiber filter cloth; a-a water inlet of a rotary filter screen; b, a water outlet of the fiber filter tank;
100-a pretreatment pool; 200-a biofilm treatment unit; 300-two stage filtration system.
Detailed Description
The technical solutions in the embodiments of the present invention are clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiment of the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Embodiments of the present invention will be described in further detail below with reference to the accompanying drawings.
The embodiment of the utility model provides a two-stage filtration system suitable for get rid of the suspended solid in biomembrane processing technology can be used in biomembrane processing system, as shown in figure 1, this filtration system includes: the rotary filter screen and the fiber filter tank are communicated in sequence; the rotary filter screen comprises a water collecting tank and a rotatable hollow filter cylinder arranged in the water collecting tank, a water inlet of the rotary filter screen is communicated with the interior of the hollow filter cylinder, and a water inlet of the rotary filter screen is used as a water inlet of the system;
the water outlet of the fiber filter chamber is used as the water outlet of the system, and microporous fiber filter cloth is arranged in the fiber filter chamber;
the filtering aperture of the hollow filter cylinder of the rotary filter screen is larger than that of the microporous fiber filter cloth arranged in the fiber filter.
The rotary filter screen specifically comprises: the device comprises a water collecting tank, a hollow filter cylinder, a rotating shaft, a transmission chain, a speed reduction type driving device, a backwashing pump and a backwashing pipe;
wherein, the hollow filter cylinder can be made of stainless steel, and a plurality of filter holes with the aperture of 100 mu m are uniformly distributed on the hollow filter cylinder; the speed reduction type driving device is arranged on the water collecting pool and drives the hollow filter cartridge through a transmission chain, so that the hollow filter cartridge can rotate in the water collecting pool;
the water collecting tank is provided with a back washing pump and a back washing pipe, the back washing pump is connected with the back washing pipe, the water outlet of the back washing pipe is correspondingly arranged above the hollow filter cylinder, and filtered water can be introduced by the back washing pump to wash the hollow filter cylinder.
The filtering aperture of the microporous fiber filtering cloth arranged in the fiber filtering pool in the filtering system is 10 μm.
In the above filtration system, the hollow filter cartridge of the rotary screen may have other filter pore sizes, and the microporous fiber filter cloth in the fiber filter may have other filter pore sizes.
The embodiment of the utility model provides a filtration system has that area is little, capital construction investment and working costs are economized, the processing time is short, operation management is simple, and can get rid of the not suspended solid of equidimension, can regard as the filtration system of the biomembrane processing technology of the application in sewage treatment of small town.
The application of the above-mentioned filtration system in a biofilm treatment process is further described below with reference to fig. 2.
As shown in fig. 2, the raw sewage is collected and then enters the pretreatment tank 100 and the biofilm treatment unit 200 in sequence to remove impurities and suspended solids with large volume and most organic pollutants, nitrogen and phosphorus in the sewage, and then enters the two-stage filtration system 300 to realize sludge-water separation and finally ensure the standard discharge of main pollutants.
The two-stage filtering system mainly comprises a rotary filter screen and a fiber filter tank, and respectively plays roles in coarse filtering and micro filtering; the structure of the rotary filter screen is shown in fig. 1, after being treated by the biological membrane unit 200, sewage carries a large amount of suspended matters (the concentration is higher than 100mg/L) consisting of fallen biological membranes, the sewage flows into the hollow filter cylinder 2 of the rotary filter screen from the water inlet A by gravity, the hollow filter cylinder 2 consists of a high-strength stainless steel filter screen and is cylindrical, and the diameter of the filter screen of the hollow filter cylinder 2 is 100 microns and is used for intercepting suspended particles with larger volume. When sewage passes through the hollow filter cylinder 2, suspended matters are intercepted at the inner side of the hollow filter cylinder 2, the sewage flows out from the outer side of the hollow filter cylinder 2, and the sewage is collected in the water collecting tank 1 and then discharged into the fiber filter tank 20 through the water outlet; when the suspended matters are accumulated to a certain degree at the inner side of the hollow filter cylinder 2, the water passing flux of the hollow filter cylinder 2 is gradually reduced, the water level in the hollow filter cylinder 2 gradually rises, when the water level rises to a certain height, the speed-reducing driving device 5 is automatically started, the hollow filter cylinder 2 is driven to slowly rotate through the transmission chain 4 and the rotating shaft 3, meanwhile, a backwashing pump (not shown in figure 1) is started, filtered effluent is pumped and backwashed from the outer side through the backwashing pipe 6 to the filter screen forming the hollow filter cylinder 2, the flushed suspended matters are discharged from the slag discharge port 8 of the hollow filter cylinder 2, and the suspended matters accumulated in the water collecting tank 1 are periodically discharged from the slag discharge port 7 on the water collecting tank 1. The concentration of suspended matters in water after the rotary filter screen filtration is basically kept at 20-30 mg/L, and the water inlet requirement of a subsequent fiber filter tank is met. The filter medium of the fiber filter 20 is microporous fiber filter cloth 202, the microporous fiber filter cloth 202 is arranged in the filter body 201 of the fiber filter 20, the filter aperture is 10 μm, and under the condition that the inlet water is lower than 30mg/L, the outlet water can be ensured to be stably lower than 10mg/L and the operation is stable. When the concentration of the suspended matters in the inlet water of the fiber filter 20 is higher than 100mg/L, the treatment effect can still be ensured, but the operation stability is poor, the backwashing period is greatly shortened, and the backwashing frequency and the backwashing water amount are greatly increased. Through combining the two kinds of filtration, constitute brand-new two-stage filtration system, the two is mutual for guarantee, complement each other, both can guarantee that the play water suspended solid is stable discharge to reach standard, avoided again because of the too high filtration flux that causes of suspended solid concentration descends fast and difficult recovery, the back flush is frequent, the energy consumption increases even filtration system operation paralysis scheduling problem.
To sum up, the two-stage filtration system of the embodiment of the utility model has the advantages of small floor area, compact arrangement, low investment and operation cost, high automation degree, simple operation and management, and is very suitable for removing suspended matters in the small-scale biomembrane sewage treatment process; meanwhile, the problems of too fast blockage of a filter medium, frequent back washing, energy consumption increase and the like caused by a single-stage filtration process are avoided.
The above description is only for the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are all covered by the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (4)
1. A two-stage filtration system suitable for removing suspended matter in a biofilm process, the system comprising: the rotary filter screen and the fiber filter tank are communicated in sequence; wherein,
the rotary filter screen comprises a water collecting tank and a rotatable hollow filter cylinder arranged in the water collecting tank, a water inlet of the rotary filter screen is communicated with the interior of the hollow filter cylinder, and a water inlet of the rotary filter screen is used as a water inlet of the system;
the water outlet of the fiber filter tank is used as the water outlet of the system, and microporous fiber filter cloth is arranged in the fiber filter tank;
the filtering aperture of the hollow filter cylinder of the rotary filter screen is larger than that of the microporous fiber filter cloth arranged in the fiber filter.
2. The two-stage filtration system for removing suspended matters in a biofilm treatment process as recited in claim 1, wherein said hollow filter cylinder of said rotary screen is a stainless steel hollow filter cylinder, and a plurality of filtration pores with a pore size of 100 μm are uniformly distributed on said hollow filter cylinder.
3. A two-stage filtration system suitable for use in a biofilm treatment process for the removal of suspended matter according to claim 1 or 2, wherein said rotary strainer further comprises:
the device comprises a rotating shaft, a transmission chain, a speed-reducing driving device, a backwashing pump and a backwashing pipe;
the hollow filter cartridge is arranged in the water collecting pool through a rotating shaft, and the speed-reducing type driving device is arranged on the water collecting pool and drives the hollow filter cartridge through a transmission chain;
the water collecting tank is provided with the backwashing pump and the backwashing pipe, the backwashing pump is connected with the backwashing pipe, and the water outlet of the backwashing pipe is correspondingly arranged above the hollow filter cylinder.
4. A two-stage filtration system for removing suspended substances in a biological membrane treatment process according to claim 1, wherein the filtration pore size of the microporous fiber filter cloth arranged in the fiber filter tank is 10 μm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204653649U CN202343006U (en) | 2011-11-21 | 2011-11-21 | Two-stage filtration system suitable to remove suspended matters in biomembrane treatment process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204653649U CN202343006U (en) | 2011-11-21 | 2011-11-21 | Two-stage filtration system suitable to remove suspended matters in biomembrane treatment process |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202343006U true CN202343006U (en) | 2012-07-25 |
Family
ID=46532033
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204653649U Expired - Fee Related CN202343006U (en) | 2011-11-21 | 2011-11-21 | Two-stage filtration system suitable to remove suspended matters in biomembrane treatment process |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202343006U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103990317A (en) * | 2014-05-26 | 2014-08-20 | 江苏双盈纺织科技有限公司 | Wastewater treatment impurity-intercepting device |
| CN107151081A (en) * | 2016-03-05 | 2017-09-12 | 江苏力盛船舶设备制造有限公司 | A kind of ship sewage treatment unit |
| CN107970676A (en) * | 2017-12-11 | 2018-05-01 | 扬州市康嵩达机电设备有限公司 | Tobacco extract double-cylinder type micro-filtration |
| CN110585793A (en) * | 2019-09-29 | 2019-12-20 | 李智 | Chemical industry is with crossing jar |
| CN110836807A (en) * | 2019-12-03 | 2020-02-25 | 朱晓璞 | Special filter equipment of hydrology monitoring well water quality testing |
| CN111701332A (en) * | 2020-07-09 | 2020-09-25 | 杭州凯博特环保科技开发有限公司 | Sewage filtering equipment capable of automatically cleaning suspended pollutants |
| CN112473327A (en) * | 2020-12-30 | 2021-03-12 | 四川省环保科技工程有限责任公司 | Dry tail gas processing system of artificial fiber board |
-
2011
- 2011-11-21 CN CN2011204653649U patent/CN202343006U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103990317A (en) * | 2014-05-26 | 2014-08-20 | 江苏双盈纺织科技有限公司 | Wastewater treatment impurity-intercepting device |
| CN107151081A (en) * | 2016-03-05 | 2017-09-12 | 江苏力盛船舶设备制造有限公司 | A kind of ship sewage treatment unit |
| CN107970676A (en) * | 2017-12-11 | 2018-05-01 | 扬州市康嵩达机电设备有限公司 | Tobacco extract double-cylinder type micro-filtration |
| CN110585793A (en) * | 2019-09-29 | 2019-12-20 | 李智 | Chemical industry is with crossing jar |
| CN110836807A (en) * | 2019-12-03 | 2020-02-25 | 朱晓璞 | Special filter equipment of hydrology monitoring well water quality testing |
| CN111701332A (en) * | 2020-07-09 | 2020-09-25 | 杭州凯博特环保科技开发有限公司 | Sewage filtering equipment capable of automatically cleaning suspended pollutants |
| CN112473327A (en) * | 2020-12-30 | 2021-03-12 | 四川省环保科技工程有限责任公司 | Dry tail gas processing system of artificial fiber board |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103496784B (en) | A kind of self-forming dynamic membrane bioreactor using aerobic particle mud | |
| CN102417273A (en) | Dynamic membrane purification reactor and method for removing ammonia nitrogen and organic matters in reclaimed water | |
| CN105129974B (en) | A kind of progressive rotation type membrane bioreactor | |
| CN102951734A (en) | Wastewater treatment device with anaerobic dynamic membrane reactor | |
| CN101434435B (en) | Method and apparatus for using aerating biological filter in advanced treatment of dyeing waste water | |
| CN219860957U (en) | Coal-containing wastewater treatment system | |
| CN201534028U (en) | A circular terraced sedimentation filtration sewage treatment device | |
| CN102190397B (en) | Integrated reclaimed water reuse equipment | |
| CN200988799Y (en) | Adsorptive regeneration and split type vibration membrane biological reactor | |
| CN207276417U (en) | A kind of ceramic membrane aeration and micro-positive pressure ozone film reused water processing device | |
| CN108083480A (en) | Integrated Emergency management device is denitrogenated in a kind of ceramic membrane separation decarburization | |
| CN104606941A (en) | Fiber rotary disk filtration tank for countryside small enterprises | |
| CN101190807B (en) | Absorption regeneration detachable membrane bioreactor for treating water | |
| CN201380045Y (en) | Mine water desalination pretreatment device and reverse osmosis desalination equipment | |
| CN109305712A (en) | Powder activated carbon filter device and process for advanced sewage treatment | |
| CN2515195Y (en) | Aeration filtering pool | |
| CN214781005U (en) | A slot-pulling anaerobic gravity flow dynamic membrane bioreactor device | |
| CN111992056B (en) | Functional magnetic-based dynamic membrane system and implementation method thereof | |
| CN205740643U (en) | A kind of external cross-flow ultrafiltration membrane system | |
| CN212269774U (en) | Biological method printing and dyeing wastewater treatment device | |
| CN209352725U (en) | A kind of coal chemical industrial waste water processing unit | |
| CN102764535B (en) | Integrated coagulation and direct-filtration filter cloth reactor for urban sewage recycling pretreatment | |
| CN103145237A (en) | Rotating disc type dynamic membrane module | |
| CN201842692U (en) | Active biofilm processing device | |
| CN201125186Y (en) | A landscape water treatment device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120725 Termination date: 20161121 |