CN2179371Y - Floating water purifier - Google Patents
Floating water purifier Download PDFInfo
- Publication number
- CN2179371Y CN2179371Y CN 93237714 CN93237714U CN2179371Y CN 2179371 Y CN2179371 Y CN 2179371Y CN 93237714 CN93237714 CN 93237714 CN 93237714 U CN93237714 U CN 93237714U CN 2179371 Y CN2179371 Y CN 2179371Y
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- CN
- China
- Prior art keywords
- water
- floating
- cleaning device
- nozzle
- separation chamber
- 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
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 131
- 238000007667 floating Methods 0.000 title claims abstract description 26
- 238000006243 chemical reaction Methods 0.000 claims abstract description 33
- 238000000926 separation method Methods 0.000 claims abstract description 30
- 238000001914 filtration Methods 0.000 claims abstract description 25
- 230000007704 transition Effects 0.000 claims abstract description 14
- 239000000839 emulsion Substances 0.000 claims abstract description 11
- 239000004576 sand Substances 0.000 claims abstract description 6
- 238000004140 cleaning Methods 0.000 claims description 17
- 238000007599 discharging Methods 0.000 claims description 10
- 210000003101 oviduct Anatomy 0.000 claims description 9
- 230000000630 rising effect Effects 0.000 claims description 5
- 230000005855 radiation Effects 0.000 claims description 4
- 238000001556 precipitation Methods 0.000 abstract description 3
- 238000009792 diffusion process Methods 0.000 abstract 1
- 238000005188 flotation Methods 0.000 abstract 1
- 238000005272 metallurgy Methods 0.000 abstract 1
- 239000000706 filtrate Substances 0.000 description 26
- 239000000126 substance Substances 0.000 description 18
- 238000005189 flocculation Methods 0.000 description 14
- 230000016615 flocculation Effects 0.000 description 14
- 239000003795 chemical substances by application Substances 0.000 description 13
- 230000000694 effects Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 238000003801 milling Methods 0.000 description 3
- 239000010865 sewage Substances 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 241000220317 Rosa Species 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000000725 suspension Substances 0.000 description 2
- 239000002351 wastewater Substances 0.000 description 2
- 206010003830 Automatism Diseases 0.000 description 1
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 1
- 241001310793 Podium Species 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- -1 aluminium chlorohydroxide Chemical compound 0.000 description 1
- 210000005056 cell body Anatomy 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 239000002019 doping agent Substances 0.000 description 1
- 230000001804 emulsifying effect Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- RUTXIHLAWFEWGM-UHFFFAOYSA-H iron(3+) sulfate Chemical compound [Fe+3].[Fe+3].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O RUTXIHLAWFEWGM-UHFFFAOYSA-H 0.000 description 1
- 229910000360 iron(III) sulfate Inorganic materials 0.000 description 1
- 238000011068 loading method Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 229910052748 manganese Inorganic materials 0.000 description 1
- 239000011572 manganese Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 229920002401 polyacrylamide Polymers 0.000 description 1
- 238000000247 postprecipitation Methods 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 241000894007 species Species 0.000 description 1
- 239000007762 w/o emulsion Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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- Separation Of Suspended Particles By Flocculating Agents (AREA)
Abstract
The utility model relates to a floating water purifier, which is used for treating high-turbidity water, and the floating water purifier belongs to the field of metallurgy and chemistry. The floating water purifier is characterized in that the circumferential edges of the top end of a reaction separation chamber (7) is provided with a dirt discharge groove, a settling zone (8), a filtering layer (9), a shunting chamber (10) and a discharge hopper (19) which are in sequence connected, and a sand carrying device which is arranged in the center of the floating water purifier is composed of a nozzle (3), a flared tube (4), a throat tube of a water ejector (5), and a diffusion tube (6). The internal part of the water inlet tube (1) is penetrated by a water emulsion tube (2); the nozzle (3) is towards the center of the flared tube (4); the periphery of the shunting chamber (10) is provided with a guiding transition zone (12), and a flow-guiding device (13) is arranged between the guiding transition zone (12) and the water purifier. The floating water purifier has three functions of air flotation, precipitation and filtration.
Description
A kind of up-floating water-cleaning device is used to handle the ultra, belongs to metallurgical, chemical field.
Processing ultra device commonly used at present is vertical-flow settling pond, and is wherein better with the circulatior clarifier effect.Fig. 1 is the circulatior clarifier structural representation, its principle of work is: when the former water (after adding flocculation agent) that has certain pressure passes through nozzle (3) with high speed, form negative pressure on every side at water sprayer trunnion (5), thereby the backflow body refuse that will be several times as much as former water sucks trunnion, and thorough mixing with it.Because the backflow body refuse fully contacts, reacts with former water, has strengthened intergranular adsorption, has quickened flocculation, to obtain clarifying effect preferably.When former water overflows to second reaction chamber (20) from suitable for reading through first reaction chamber (18), current flow to separate chamber (7), overflow to annular collecting vat (16) in the top of clear water self-separation chamber (7), discharge by rising pipe (17) then, settlement of sewage is (7) bottom in the separate chamber, a part is discharged from blow-off pipe (22), and another part backflow body refuse is inhaled into water sprayer trunnion (5) and clarifies again.See P.678-P.693(China Construction Industry Press's in December, 1986 first version of the 3rd city water of water supply and drainage design manual for details).
The disadvantages of background technology part is: 1, interruption work, and manual operation often because of raw water quality changes, the operation imbalance causes and turns over the pond phenomenon, influences effluent quality; 2, the extremely difficult control of blowdown flow rate, the many or few effluent quality that all influences of row of row; 3, clear water upflow velocity slow (being about 1mm/s), water loss is bigger during blowdown, and is uneconomical; 4, range of application is narrow, can only do water purification and handle.
The purpose of this utility model is to avoid the weak point of above-mentioned background technology and provides a kind of self waterpower can leaned on effectively to carry out the high-level efficiency of continuous backwash, blowdown, continuous effluent, the up-floating water-cleaning device of less energy-consumption.Mainly take measures is that reaction chamber is made up of Reaction Separation chamber (7), settling region (8), top, Reaction Separation chamber (7) periphery has dirt discharge groove (21), on the wall of Reaction Separation chamber (7) blowdown adjustment hole (28) is arranged, lower end, settling region (8) is connected with filtering layer (9), is connected by separate chamber (10) between filtering layer (9) and the discharging hopper (19); Carry the sand device and place up-floating water-cleaning device central authorities, form by nozzle (3), oviduct (4), water sprayer trunnion (5), scatterer (6), water sprayer trunnion (5) lower end is connected with oviduct (4), the upper end is communicated with diffuser tube, be connected with air water emulsion pipe (2) in water inlet pipe (1), water inlet pipe (1) links to each other with nozzle (3) lower end, and discharging hopper (19) bottom central authorities are injected in nozzle (3) upper end, aim at oviduct (4) center, and gapped with water sprayer trunnion (5) tail end; The outer guiding zone of transition (12) that is with of diffluence room (10) has water conservancy diversion district (13) to connect between guiding zone of transition (12) and the clear water device.
Embodiment of the present utility model: Fig. 2 is the up-floating water-cleaning device structural representation.At first, filtrate and the flocculation agent suitable according to the different choice of raw water quality, filtrate places filtering layer (9), flocculation agent liquid feeds water inlet pipe (1) simultaneously by flocculation agent pipe (2 ') and air water emulsion pipe (2), make flocculation agent air water emulsion and former water by water inlet pipe (1) process nozzle (3) and oviduct (4), inject water sprayer trunnion (5), inject Reaction Separation chamber (7) through diffuser tube (6), water sprayer trunnion (5) is in filtering layer (9), central authorities of diffluence room (10), diffuser tube (6) puts in Reaction Separation chamber (7), at this moment current are divided into two-way, most suspended substances is followed less water (former water 1～2%) and is risen floating top to Reaction Separation chamber (7), blowdown adjustment hole by Reaction Separation chamber (7) outer wall, a large amount of suspended substances overflow into the dirt discharge groove (21) of the top perimeter of Reaction Separation chamber (7), are discharged by blow-off pipe (22); Another road is that (8) flow to filtering layer (9) filtration to a small amount of suspended substance through the settling region with big water gaging with filtrate, filtrate is filled in filtering layer (9), in diffluence room (10) and the discharging hopper (19), but filtration is filtering layer (9), water after the filtration flows into diffluence room (10), this moment, water divided two-way again, one road water flows into guiding zone of transition (12), there is filter screen (11) to be separated by between the guiding zone of transition (12) of diffluence room (10) and periphery, filter screen is generally the 20-40 order, water in guiding zone of transition (12) is pressed into water conservancy diversion district (13), row has water conservancy diversion inclined tube (27) to be looped around filtering layer (9) on every side in the water conservancy diversion district (13), clear water advances the clear water device by water conservancy diversion inclined tube (27) up-flow, the clear water device is by clear water tank body (14), radiation chute (15), rising pipe (17) composition of annular chute (16) and annular flow bottom land end, water overflow are gone into radiation chute (15) and annular chute (16) and are confluxed to rising pipe (17) and discharge.Another Lu Shuiyu filtrate is collected to the bottom along discharging hopper (19) together, the current suction cone (4) that is penetrated by nozzle (3) is injected water sprayer trunnion (5) once more, the gap is 1.5～2 times of nozzle bore between nozzle (3) port and water-jet trunnion (5) tail end, be generally 20～400mm, when former water passes through nozzle (3) with high speed, form negative pressure on every side at water sprayer trunnion (5), the filtrate that will have suspended substance sucks water sprayer trunnion (5), meanwhile by absorption under the impact of the suspended substance on the filtrate at water jet, separate with filtrate and to come off, and with the water inlet in microbubble adsorb mutually, diffuser tube (6) rose, rise floating top layer, cross the overflow of blowdown adjustment hole and go into dirt discharge groove (21), discharge by blow-off pipe (22) to Reaction Separation chamber (7).
The selection of filtrate and flocculation agent is by the decision of raw water turbidity and dopant species, and as the factory effluent of mill, its suspension content is generally at 1000-8000mg/1, oleaginousness 50-500mg/1, and available blast furnace granulated slag is made filtrate, and bodied ferric sulfate is made flocculation agent; If be underground water deferrization, demanganization, with manganese ore masonry filtrate, polymeric aluminum is made flocculation agent.
4～16 blowdown adjustment holes (28) are arranged on the wall of Reaction Separation chamber (7), Fig. 3 is a blowdown adjustment hole front view, Fig. 4 is the vertical view of blowdown adjustment hole, blowdown adjustment hole (28) is by regulating plate (24), baffle plate (23), backing plate (25), handle (26) are formed, its main purpose is the control blowdown flow rate, and general blowdown speed is 0.01～0.02m/s.
Go up by air water emulsion pipe (2) is arranged at water inlet pipe (1), air water emulsion pipe (2) caliber is 10～50mm, so-called air water emulsion, promptly gas occurs with the form of microbubble (＜1 μ m), follow into water when the air water emulsion and inject trunnion (5), run into this moment just by jet inspiration and filtrate just under jet impulse and the suspended substance that comes off, the air water emulsion promptly adsorbs mutually with suspended substance, suspended substance is lightened and float to the water surface of Reaction Separation chamber (7), overflow into dirt discharge groove (21).
The top perimeter of Reaction Separation chamber (7) has dirt discharge groove (21), 4～16 blowdown adjustment holes are arranged on the wall of Reaction Separation chamber (7), rise the large amount of sewage that floats to surface, Reaction Separation chamber (7) and flow into dirt discharge groove (21), discharge through blow-off pipe (22) by the blowdown adjustment hole.Bottom, Reaction Separation chamber (7) is connected with filtering layer (9) through settling region (8).Reaction Separation chamber (7) separation principle is to utilize the different come-ups with the proportion of filtrate of suspended substance to sink and separate.Be behind the suspended substance absorption microbubble its proportion less than 1 come-up; Though filtrate has also adsorbed microbubble, because of proportion is far longer than 1 sinking.Reaction Separation chamber (7) has pneumatically supported function.The suspended substance that those are about to and flocculation agent liquid reacts in Reaction Separation chamber (7) is followed the dirty together settling region (8) of coming of current, filtrate and is carried out (concurrent) precipitation, and post precipitation injects filtrating area (9) and finishes filteration.Reaction Separation chamber (7), settling region (8), filtrating area (9) have been finished air supporting, precipitation and filtering function.
Take over filtering layer (9), following logical discharging hopper (19) in the diffluence room (10), be separated by with filter screen between periphery and the guiding zone of transition (12), filter screen is 20～40 orders (selecting German standard sieve for use), its area is greater than the zone of transition area, filter screen effect one is to block filtrate to pass through by clear water, the 2nd, reduced volume, the loading capacity of minimizing filtrate.
There is water conservancy diversion inclined tube (27) to be looped around filtering layer (9) on every side in the water conservancy diversion district (13), water conservancy diversion inclined tube (27) is gone up and is connected guiding zone of transition (12) under the logical clear water zone (14), water conservancy diversion inclined tube (27) is 50～60 ° with horizontal plane angle, and caliber is 25～50mm, and tilts along circumferential direction.The effect of water conservancy diversion inclined tube (27): the current lift velocity equalization that 1, can make the interior any point of clear water zone (14); If 2 have the suspended substance alumen ustum of slipping through the net to rise in inclined tube when floating, will sink in case run into the inclined tube wall, thus the suspended substance in the minimizing clear water, the degree of cleaning of maintenance water.
Characteristics of the present utility model are that the ultra passes through a circulation body, and filtrate is kinestate up and down from bottom to top all the time from top to bottom, and obtains backwash reduction in turn by former water and the effect filtrate of carrying the sand device, guarantees the degree of cleaning and the effluent quality of filtrate.
Fig. 1 circulatior clarifier structural representation
Fig. 2 up-floating water-cleaning device structural representation
Fig. 3 blowdown adjustment hole front view
Fig. 4 blowdown adjustment hole vertical view
Below in conjunction with embodiment the utility model is further set forth: 650 milling train factory effluent 800m
3/ h(is iron scale waste water 400m wherein
3/ h), suspension content 6000mg/1, waste oil content 450mg/1.Contain suspended substance≤50mg/1 in the water after requiring to handle, oleaginousness≤10mg/1 reaches the purpose that recycles process water.
Selecting natural extra large sand is filtrate, and polyacrylamide and aluminium chlorohydroxide are made flocculation agent.The treatment capacity Q=200m3/h of every up-floating water-cleaning device.
Up-floating water-cleaning device is connected on the effluent pipe mouth of sewage drainage pump house.
Adding caliber with the pressure of 0.3Mpa by the flocculation agent liquid pipe (2 ') that inserts water inlet pipe at deployed flocculation agent is in the water inlet pipe (1) of φ 250mm, air water emulsifying pipe (2) caliber is φ 20mm, the gentle water-in-oil emulsion of former water that has flocculation agent mixes back pressure with 0.30Mpa and enters nozzle (3), the nozzle bore is φ 100mm, cross oviduct (4), inject water sprayer trunnion (5) (caliber φ 350mm), (the hydraucone diameter is φ 1200mm to cross diffuser tube (6), high 1500mm) injects Reaction Separation chamber (7) (φ 5400mm, high 700mm), decline settling region (8) (high 800mm), flow into filtering layer (9) (diameter phi 3200mm along gravity, high 900mm, fill filtrate sea sand, filtering velocity is 54m3/h), enter diffluence room (10), this moment, a fluid stream was divided into second-rate, first-class clear water is crossed peripheral filter screen (11) (filter screen diameter phi 3200mm, high 800mm, with 30 order nets, filtration velocity is 26.14m/h) and guiding zone of transition (12), through water conservancy diversion district (13) (diameter phi 7700mm, high 600mm), it is φ 40mm that 26277 diameters of water conservancy diversion inclined tube are arranged in the water conservancy diversion district, 60 ° at pitch angle, to clear water zone, (diameter is φ 7700mm to clear water cell body (14) to clear water by water conservancy diversion inclined tube (27), high 1400mm, the clear water upflow velocity is 1.5mm/s) overflow into radiation chute (15) and annular chute (16) (flow velocity is 0.42m/s in the groove, the wide 180mm of chute basal area * high 250mm), discharge by rising pipe (17) (caliber φ 250mm); Another stream of diffluence room (10) converges to the discharging hopper bottom along discharging hopper (19) for filtrate and the water that is adsorbing suspended substance, discharging hopper (19) is the cone platform-like, diameter is respectively φ 3200mm and φ 400mm, and podium level is 2420mm, and bus and horizontal sextant angle are 60 °.The former water that carries the air water emulsion when folder is crossed oviduct (4) from water inlet pipe (1) by nozzle (3) with 0.30MPa pressure, during directive water sprayer trunnion (5), collect in nozzle filtrate and recirculation water (reflux ratio 1:2) on every side and be sucked into water sprayer trunnion (5), the suspended substance that is being adsorbed by filtrate is at the pressure of former water with 0.30MPa, separate 7.5m/s come off with filtrate under the jet impulse, again with former water in microbubble adsorb mutually and follow mixture velocity and rose along the water sprayer trunnion that to enter Reaction Separation chamber (7) floating to the water surface for diffuser tube (6), blowdown adjustment hole (the wide 30mm in hole * high 200mm overflow, totally 8 are evenly distributed on the periphery of Reaction Separation chamber), flow to blowdown ring groove (21) (groove width 60mm * high 100mm), discharge by blow-off pipe (22) (diameter is φ 32mm).
By above-mentioned processing, 650 milling train waste water oil removal rates reach 98%, and the suspended substance removal rate reaches more than 95%, and the process water that the water after the processing can be used as the cooling milling train uses repeatedly.
The utility model is compared with background technology and is had the following advantages:
1, hydraulic automatism control, and continuous operation, the pondage that can save or dwindle clear water reserviors is saved quantities, reduces investment outlay;
2, this equipment gas collection floats, precipitates, filters three functions in one, has guaranteed effluent quality;
3, efficient height, the rate of filtration reaches 50～60m/h, and the clear water upflow velocity is 1.5～2mm/s;
4, purposes is wide, except making purifying water process, also can carry out specially treated to underground water demanganization, deironing etc., can do biochemical treatment again.
Claims (7)
1, a kind of up-floating water-cleaning device, form by nozzle (3), water sprayer trunnion (5), reaction chamber, it is characterized in that: reaction chamber is made up of Reaction Separation chamber (7), settling region (8), top, Reaction Separation chamber (7) periphery has on dirt discharge groove (21), Reaction Separation chamber (7) wall blowdown adjustment hole (28) is arranged, lower end, settling region (8) is connected with filtering layer (9), is connected by diffluence room (10) between filtering layer (9) and the discharging hopper (19); Carry the sand device and place up-floating water-cleaning device central authorities, form by nozzle (3), oviduct (4), water sprayer trunnion (5), diffuser tube (6), water sprayer trunnion (5) lower end is connected with oviduct (4), the upper end is communicated with diffuser tube (6), in water inlet pipe (1), be connected with air water emulsion pipe (2), water inlet pipe (1) is connected with nozzle (3) lower end, discharging hopper (19) bottom center is injected in nozzle (3) upper end, aims at oviduct (4) center, and gapped with water sprayer trunnion (5) tail end; Outside diffluence room (10), be with guiding zone of transition (12), have water conservancy diversion district (13) to connect between guiding zone of transition (12) and the clear water device.
2, up-floating water-cleaning device according to claim 1 is characterized in that: water sprayer trunnion (5) is in filtering layer (9), central authorities of diffluence room (10), and diffuser tube (6) puts in Reaction Separation chamber (7).
3, up-floating water-cleaning device according to claim 1 is characterized in that: have filter screen (11) to be separated by between the guiding zone of transition (12) of diffluence room (10) and periphery.
4, up-floating water-cleaning device according to claim 1 is characterized in that: the water conservancy diversion inclined tube (27) in water conservancy diversion district (13) is looped around filtering layer (9) on every side.
5, up-floating water-cleaning device according to claim 1 is characterized in that: the clear water device is made up of the rising pipe (17) of clear water tank body (14), radiation chute (15), annular chute (16) and annular flow bottom land end.
6, up-floating water-cleaning device according to claim 1 is characterized in that: the gap is 1.5～2 times of jet hole diameter between nozzle (3) port and water-jet trunnion (5) tail end.
7, up-floating water-cleaning device according to claim 1 is characterized in that: 4～16 blowdown adjustment holes (28) are arranged on the wall of Reaction Separation chamber (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93237714 CN2179371Y (en) | 1993-10-05 | 1993-10-05 | Floating water purifier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93237714 CN2179371Y (en) | 1993-10-05 | 1993-10-05 | Floating water purifier |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2179371Y true CN2179371Y (en) | 1994-10-12 |
Family
ID=33812610
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 93237714 Expired - Fee Related CN2179371Y (en) | 1993-10-05 | 1993-10-05 | Floating water purifier |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2179371Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103011443A (en) * | 2012-10-11 | 2013-04-03 | 科斯特(厦门)节水设备有限公司 | Water quality diverter for wastewater treatment |
| CN104012457A (en) * | 2014-04-15 | 2014-09-03 | 常州思宇环保材料科技有限公司 | Pond purifier and withdrawal method |
| CN104781198A (en) * | 2012-09-19 | 2015-07-15 | 威立雅水务解决方案与技术支持公司 | Water treatment method including flotation combined with gravity filtration and corresponding equipment |
-
1993
- 1993-10-05 CN CN 93237714 patent/CN2179371Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104781198A (en) * | 2012-09-19 | 2015-07-15 | 威立雅水务解决方案与技术支持公司 | Water treatment method including flotation combined with gravity filtration and corresponding equipment |
| CN104781198B (en) * | 2012-09-19 | 2017-06-13 | 威立雅水务解决方案与技术支持公司 | Water treatment method including flotation combined with gravity filtration and corresponding equipment |
| CN103011443A (en) * | 2012-10-11 | 2013-04-03 | 科斯特(厦门)节水设备有限公司 | Water quality diverter for wastewater treatment |
| CN103011443B (en) * | 2012-10-11 | 2015-04-22 | 科斯特(厦门)节水设备有限公司 | Water quality diverter for wastewater treatment |
| CN104012457A (en) * | 2014-04-15 | 2014-09-03 | 常州思宇环保材料科技有限公司 | Pond purifier and withdrawal method |
| CN104012457B (en) * | 2014-04-15 | 2016-02-03 | 宁波江东波莫纳电子科技有限公司 | A kind of pond purifier and Repossession method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |