EP0208696A1 - Verfahren zur lösung von gas in flüssigkeit. - Google Patents
Verfahren zur lösung von gas in flüssigkeit.Info
- Publication number
- EP0208696A1 EP0208696A1 EP85905326A EP85905326A EP0208696A1 EP 0208696 A1 EP0208696 A1 EP 0208696A1 EP 85905326 A EP85905326 A EP 85905326A EP 85905326 A EP85905326 A EP 85905326A EP 0208696 A1 EP0208696 A1 EP 0208696A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- gas
- solution
- liquid
- nozzle plate
- pressure
- 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.)
- Granted
Links
- 239000007788 liquid Substances 0.000 title claims abstract description 49
- 238000000034 method Methods 0.000 title claims abstract description 25
- 238000004090 dissolution Methods 0.000 title abstract description 5
- 238000006243 chemical reaction Methods 0.000 claims abstract description 38
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 19
- 239000000203 mixture Substances 0.000 claims abstract description 15
- 238000009826 distribution Methods 0.000 claims description 8
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims description 4
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 claims description 3
- 230000003472 neutralizing effect Effects 0.000 claims description 3
- 238000011144 upstream manufacturing Methods 0.000 claims description 3
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 claims description 2
- 229910021529 ammonia Inorganic materials 0.000 claims description 2
- 239000000460 chlorine Substances 0.000 claims description 2
- 229910052801 chlorine Inorganic materials 0.000 claims description 2
- 239000011521 glass Substances 0.000 claims description 2
- 230000003647 oxidation Effects 0.000 claims description 2
- 238000007254 oxidation reaction Methods 0.000 claims description 2
- 230000001954 sterilising effect Effects 0.000 claims description 2
- 238000004659 sterilization and disinfection Methods 0.000 claims description 2
- BVKZGUZCCUSVTD-UHFFFAOYSA-N carbonic acid Chemical compound OC(O)=O BVKZGUZCCUSVTD-UHFFFAOYSA-N 0.000 claims 1
- 238000009795 derivation Methods 0.000 claims 1
- 239000000243 solution Substances 0.000 abstract description 39
- 238000002347 injection Methods 0.000 abstract 1
- 239000007924 injection Substances 0.000 abstract 1
- 230000002093 peripheral effect Effects 0.000 abstract 1
- 238000009423 ventilation Methods 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 48
- 239000000126 substance Substances 0.000 description 5
- 239000002351 wastewater Substances 0.000 description 5
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 3
- 238000005273 aeration Methods 0.000 description 3
- 238000005352 clarification Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 238000005189 flocculation Methods 0.000 description 2
- 230000016615 flocculation Effects 0.000 description 2
- 239000006193 liquid solution Substances 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- KZBUYRJDOAKODT-UHFFFAOYSA-N Chlorine Chemical compound ClCl KZBUYRJDOAKODT-UHFFFAOYSA-N 0.000 description 1
- 241000196324 Embryophyta Species 0.000 description 1
- 241000219289 Silene Species 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 235000013361 beverage Nutrition 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 239000013043 chemical agent Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 235000015203 fruit juice Nutrition 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000003595 mist Substances 0.000 description 1
- 238000006386 neutralization reaction Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 239000007800 oxidant agent Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000029058 respiratory gaseous exchange Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 239000012047 saturated solution Substances 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 230000002123 temporal effect Effects 0.000 description 1
- 238000013022 venting Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 239000003643 water by type Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
- B01F23/20—Mixing gases with liquids
- B01F23/23—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
- B01F23/40—Mixing liquids with liquids; Emulsifying
- B01F23/45—Mixing liquids with liquids; Emulsifying using flow mixing
- B01F23/454—Mixing liquids with liquids; Emulsifying using flow mixing by injecting a mixture of liquid and gas
-
- 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
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S261/00—Gas and liquid contact apparatus
- Y10S261/75—Flowing liquid aspirates gas
Definitions
- the invention relates to a method and a device for mixing and dissolving gas in liquid, in which a liquid under pressure is pressed through a nozzle plate and sprayed into the gas, and the resulting mixture of solutions is then collected and discharged .
- the known method has the disadvantage that the liquid comes into contact with the gas only briefly, for fractions of a second, as a fine jet or droplet mist.
- gas bubbles are also introduced into the collected liquid, so that a further solution of the gas in the liquid takes place.
- these gas bubbles are relatively large and therefore also have a short residence time in the liquid.
- the solution to the problem is that the liquid is fed at a first, high pressure to a nozzle plate, from which it emerges at a second low pressure into a reaction space which has approximately the same cross section as the nozzle plate and one Has a length which is a multiple of the smallest transverse dimension of the nozzle plate, and into which the gas flows in the vicinity of the nozzle plate and from which a gas / solution mixture laterally flows out,
- the method and the device are characterized by simplicity. No pumps which circulate the liquid several times are necessary, and the nozzle bores in the nozzle plate can be relatively wide, so that filtering the supplied liquid from particles and suspended matter is not necessary if e.g. Sea or river water should be ventilated. Waste water to be clarified or other liquids contaminated with suspended matter can also be supplied to the device, and it can be operated with a pressure of a few bar, so that no high-pressure pumps and plant parts are required. For the preparation of baths z. B. be worked directly with water line pressure, so that no pump is required.
- the nozzles in the nozzle plate are produced in two different versions.
- the nozzles lying on the outer rim are drilled cylindrically as propulsion jet nozzles, so that due to their high jet speed they exert a suction on the surrounding gas.
- the nozzles on the inner rings expand conically Venturi version, so that the jets emanating from it cause an intensive mixing of the liquid with the gas.
- the length of the reaction space is expediently a multiple, e.g. 6 times the nozzle plate diameter.
- the lower outlet openings are arranged at a height of approximately 0.5 times the reaction chamber diameter.
- the total nozzle plate flow resistance is e.g. chosen so that about half of the available liquid pressure is used to flow through the nozzle plate and the other half to intensify the solution process if a highly supersaturated solution is to emerge at the lowest pressure level and has a high temporal stability of many hours and releases the supersaturating gas in extremely small bubbles of approximately 0.05 to 0.15 mm in diameter.
- the pressure drop between the solvent tank and the solution outlet is chosen to be lower, the supersaturated gas will escape faster in larger bubbles with a diameter of 0.15 to 2 mm.
- the bubble size and residence time of the dissolved gas in the supersaturated solution can be generated in a targeted manner using simple means.
- reaction chamber is operated surrounded by normal pressure so that only the internal dynamic pressure is effective.
- the method and the device can be used in a wide variety of ways for chemical and biological reactors in closed and open operating modes.
- the pumps and the device can thus be used for water aeration be mounted on a float and the saturated solution can be drained to a specified depth via a pipe or hose line and mixed into such a large amount of water that no gas bubbles occur, since very small gas bubbles are disadvantageous for gill breathers are.
- the supersaturated solution is expediently introduced into a liquid in a concentrated form; this results in an extremely fine, emulsion-like gas distribution due to the reduction in the solubility with decreasing pressure when the excess gas is eliminated.
- This emulsion-like gas distribution from the supersaturated solution when the solution is introduced into larger amounts of liquid, as is the case with baths, leads to a complete redissolution of this intermediate state after a dwell time of several minutes to hours, without the bubbles rising to the surface .
- Such a gas introduction method is considerably more energy and cost-effective than the direct supply of gases through nozzles.
- the described method and apparatus net.
- gas bubbles of certain predeterminable size are produced as a function of pressure, which are to be adapted to the use.
- This effect can be used in various ways, for example to flocculate or float suspended solids from liquids without further chemical agents.
- the floatation provides rapid clarification and removal of the suspended matter;
- the supersaturation with oxygen significantly reduces the COD value, which is the chemical oxygen demand for the biological degradation of dissolved organic substances.
- flocculation, neutralizing and / or oxidizing agents are advantageously introduced into the liquid feed to the reaction chamber, which are distributed extremely homogeneously in the nozzle stream and which, with the gas bubbles formed when the solution is applied, substances to be chemically attacked are transported, so that the flocculent portion, which is adjacent to a gas bubble, has a symbiotic effect when it floats with it.
- an acidic or basic gas e.g. B. carbonic acid or ammonia
- the introduction of ozone or chlorine gas is appropriate for the sterilization and oxidation.
- a particularly simple embodiment of a device for dissolving air in liquids is obtained if the air is taken up directly on the suction side by the amount of liquid. A compressor system is then no longer necessary.
- the method is advantageously suitable for the production of carbonated fruit juices and other beverages.
- the supersaturated solution is preferably filled under pressure. Exemplary embodiments are shown with reference to FIGS. 1 to 6.
- FIG. 1 shows an overall device reduced in size, opened schematically
- Fig. 2 shows a reaction chamber in vertical section
- Fig. 3 shows a perforated plate from below
- Fig. 4 shows a perforated plate cut radially
- FIG. 6 shows a second embodiment of an overall device opened laterally, schematically in a side view, partially schematically reduced.
- FIG. 1 schematically shows a mixing and dissolving device.
- the amount of gas G consumed by the solution is supplied to the solution tank 2 through its upper closure plate 22 via a gas flow regulator 5, the gas supply line 4 and a check valve 6 and is constantly replaced at medium pressure.
- the pressure can be monitored on the manometer 8.
- the vent valve 7 is used for the initial venting if a gas other than air is used. Otherwise, the air present in the tank can only be used up. Compliance with level N1 can be observed on sight glass 9. If this is reached, the gas flow is switched on.
- the solution L is discharged through a discharge line 25 via a control valve 24 through the lower closure plate 23 of the solution tank 2 and is available for the desired use.
- the tub 20 is filled, for example, with wastewater to be aerated. Since the gas-solution mixture is lighter than the wastewater, it gradually rises and the extremely finely divided gas dissolves in the still unsaturated wastewater. This process takes minutes; Little gas rises to the surface in the form of small bubbles when the level N2 is a few decimeters above the distribution pipe 1.
- the settings of the gas flow regulator 5 and the control valve 24 are relatively uncritical, since the level N1 stabilizes itself to a certain extent, since the mixing intensity and thus the gas consumption increases with increasing level N1.
- the liquid F which is fed through the valve 30 via the line 3 to the nozzle plate 12 and is essentially determined by the resistance of the nozzle plate 12, must be saturated by the corresponding gas flow. It has proven to be useful to reduce the high pressure of the liquid F from, for example, 6 bar to an average pressure behind the nozzle plate 12 to, for example, 3 bar, ie to choose the flow resistance of the nozzle plate 12 and the control valve 24 equally. This applies if a supersaturated solution UL is required for use.
- the pressure drop at the control valve must be reduced accordingly. Furthermore, the lower pressure at the outlet from the distribution pipe 27, e.g. occurs in flowing waters, or to take the increased pressure into account when discharging into pressure reactors. If strong pressure fluctuations on the liquid supply side are to be expected, it is expedient to set the gas flow regulator 5 as a function of the level N1, e.g. to control via a float or thermal or optical detector M in a known manner via a control device St and thus to form a superordinate control loop.
- FIG. 2 An advantageous design of the reaction chamber 1 is shown in FIG. 2.
- the cylinder 16 carries at the top a pipe connection 15 and a screw sleeve 18 with an inner shoulder 18a, by means of which the nozzle plate 12 is held on the cylinder 16 on the end face. Disassembly for inspection purposes is therefore easily possible.
- the cylinder 16 is closed by the baffle plate 17.
- the length H of the cylinder is approximately 6 to 8 times its diameter d.
- the baffle plate 17 which corresponds approximately to the radius r of the cylinder, 8 bores are provided as outlet openings 10, the diameter dm of which is measured according to the total cross section such that only a small flow resistance arises for the gas-liquid solution mixture.
- Somewhat below the nozzle plate 12 there are 8 further holes on all sides as inlet openings 11 in the cylinder, the diameter of which, according to the overall cross section, is such that it is approximately 1/3 of the cross section of the outlet openings 1.0.
- FIGS. 3 and 4 An advantageous embodiment of the nozzle plate 12 is shown in FIGS. 3 and 4.
- the nozzles 13, 14 are arranged radially equidistant from inside to outside on circles in divisions 1, 8, 16, 16.
- the outer 16 nozzle bores 13 are cylindrical and have a diameter d1 of e.g. 2mm with a radius r of the reaction space of 15mm. They are used to generate the fast injector jets.
- the mixing nozzles 14 have a cylindrical bore 14a on the inlet side, of the inlet diameter d2, which in the example is also 2 mm, and on the outlet side they have a conical widening 14b to approximately twice the outlet diameter d3, based on the inlet diameter d2.
- the nozzle plate thickness Dp is approximately 1/4 of the radius r of the plate.
- FIG. 5 A large version of the device for aerating water is shown in FIG. 5.
- the solution tank 2, including the mixing and dissolving device, is mounted on a frame SR, under which floating bodies S are located. Furthermore, a pump P is mounted on the frame, which sucks water through a suction basket SK and presses it through the feed line 3 into the mixing device.
- a compressor K presses compressed air via line 4 into the device.
- the pump and compressor drives which are also located on the frame, are not shown in detail.
- the entire device floats on the water W and has a self-propulsion, not shown, or it is in the tow of a watercraft.
- the supersaturated solution is pressed via a hose line 26 into the large-area distribution pipe 27, which is carried along at a predetermined depth. Care must be taken here that the towing speed of the device in the standing water or the flow speed of the water and the introduction surface of the distribution tube 27 are so great that the solution is taken up micro-bubble-free, since micro-bubbles with less than 0 , 2 mm diameter would harm the gill breathing apparatus.
- a partial liquid flow FT which is substantially greater than the flow through the reaction space, for bubble-free distribution of the supersaturated solution UL upstream of the distributor pipe 27.
- Another low pressure pump P2 is used for this. In this way, bodies of water can be reactivated in a targeted manner and the death of living beings in them avoided.
- the compressor K may also be replaced by a compressed gas reservoir, or the air may flow through the "pump P mit ⁇ be sucked, as Fig. 6 shows. This considerably simplifies the system.
- Fig. 6 shows an alternative to Fig. 1, which requires less length and smaller tank volume for the same performance.
- the reaction chamber 1A is closed on the top side by the nozzle plate 12 and has the gas inlet openings 11 on the side thereof, and on the bottom end the side side of the further baffle plate 17A, preferably two pipe stubs 60 bent upwards, the cross section of which corresponds approximately to the cross section of the reaction room corresponds to 1A and whose length h2 corresponds to approximately one third of the reaction space length H, an upper baffle plate 61 is arranged above the outlet ends 60A of the pipe socket 60 at a distance h3, which corresponds to approximately a quarter of the reaction space length H.
- Gas solution stream GL directs downward and extends over the outlet openings 60A over a wide area.
- FIG. 6 shows schematically an alternative embodiment of the gas supply, which is suitable for the introduction of air.
- An air supply line 71 is connected to the intake port 70 of the liquid pump P1 and ends in a metering valve 5A, through which the air inflow of the liquid .F to the pump is determined.
- Pumps ! which can only be arranged slightly below the water surface are particularly suitable for this operating mode, since they only have to work with a low suction vacuum.
- the metering valve 5A is either set to a fixed mass flow or is controlled by a level control device St2, which is connected to a level sensor M1.
- the suction tube '7.0 is introduced ange ⁇ 72 further comprising a metering valve which is connected to a reservoir 72 for a flocculation agent.
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Accessories For Mixers (AREA)
- Physical Or Chemical Processes And Apparatus (AREA)
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT85905326T ATE40304T1 (de) | 1985-01-16 | 1985-10-03 | Verfahren zur loesung von gas in fluessigkeit. |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE3501175 | 1985-01-16 | ||
DE19853501175 DE3501175A1 (de) | 1985-01-16 | 1985-01-16 | Verfahren und vorrichtung zur mischung und loesung von gas in fluessigkeit |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0208696A1 true EP0208696A1 (de) | 1987-01-21 |
EP0208696B1 EP0208696B1 (de) | 1989-01-25 |
Family
ID=6259916
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP85905326A Expired EP0208696B1 (de) | 1985-01-16 | 1985-10-03 | Verfahren zur lösung von gas in flüssigkeit |
Country Status (6)
Country | Link |
---|---|
US (1) | US4735750A (de) |
EP (1) | EP0208696B1 (de) |
AU (1) | AU4868185A (de) |
CA (1) | CA1318240C (de) |
DE (2) | DE3501175A1 (de) |
WO (1) | WO1986004262A1 (de) |
Families Citing this family (59)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE8527097U1 (de) * | 1985-09-23 | 1985-12-05 | Zantinge, Gerrit, Apeldoorn | Vorrichtung zur Sauerstoffanreicherung von Wasser |
ES2023839T5 (es) * | 1986-04-22 | 1995-08-16 | Ieg Ind Engineering Gmbh | Disposicion para la extraccion de impurezas ligeramente volatiles a partir de liquidos. |
HU205724B (en) * | 1986-11-28 | 1992-06-29 | Istvan Kenyeres | Method for incereasing the performance and dissolving degree of impact jet gas-imput |
US4865776A (en) * | 1988-05-19 | 1989-09-12 | Flow-Rite Controls, Ltd. | Apparatus for aerating water in a container |
US4927568A (en) * | 1988-05-19 | 1990-05-22 | Flow-Rite Controls, Ltd. | Apparatus for aerating water in a container |
US4863643A (en) * | 1988-09-13 | 1989-09-05 | Cochran David W | Apparatus for dissolution of gas in liquid |
US4927433A (en) * | 1989-05-22 | 1990-05-22 | Mg Industries | Apparatus for removing gas from a liquid |
US5015370A (en) * | 1989-06-08 | 1991-05-14 | Anthony Fricano | Apparatus and method for treating well water |
US5108590A (en) * | 1990-09-12 | 1992-04-28 | Disanto Dennis | Water dispenser |
DE9205523U1 (de) * | 1992-04-23 | 1992-08-20 | Sonnenrein, Uwe, 4795 Delbrück | Vorrichtung zur Behandlung von Flüssigkeiten unterschiedlicher Dichte oder von Gasen und Flüssigkeiten |
DE4123354C1 (en) * | 1991-07-15 | 1993-03-11 | Enviplan Ingenieurgesellschaft Mbh, 4791 Lichtenau, De | Mobile water-aerating or oxygenating equipment - includes delivery pipe with distribution having vertical pipe rotatable about bearing by water streams |
DE4216484C2 (de) * | 1992-05-19 | 1995-01-26 | Envi Plan Ingenieurgesellschaf | Mobile Gewässerbelüftungsvorrichtung |
GB9213513D0 (en) * | 1992-06-25 | 1992-08-12 | Thames Water Utilities | A nozzle |
BR9205151A (pt) * | 1992-08-17 | 1994-03-01 | Praxair Technology Inc | Dissolucao aumentada de gas |
US6145815A (en) * | 1992-08-17 | 2000-11-14 | Praxair Technology, Inc. | System for enhanced gas dissolution having a hood positioned over the impeller with segregating rings |
US5458778A (en) * | 1992-12-23 | 1995-10-17 | Partner Gmbh | Method of treating waste water from a car wash at a vehicle refueling station |
DE4302867C2 (de) * | 1993-02-02 | 1996-12-05 | Damann Franz Josef | Vorrichtung zur Mischung und Lösung eines Gases in einer Flüssigkeit |
DE4306770C2 (de) * | 1993-03-04 | 1996-09-05 | Damann Franz Josef | Auslaufventil an einer Vorrichtung zur Mischung und Lösung eines Gases in Flüssigkeiten |
US5782380A (en) * | 1996-09-27 | 1998-07-21 | Pure Fill Corporation | Water dispensing system |
US5834519A (en) * | 1996-10-11 | 1998-11-10 | Wayne State University | Stabilized gas-supersaturated emulsions and suspensions |
US5971368A (en) | 1997-10-29 | 1999-10-26 | Fsi International, Inc. | System to increase the quantity of dissolved gas in a liquid and to maintain the increased quantity of dissolved gas in the liquid until utilized |
US6059270A (en) * | 1997-11-06 | 2000-05-09 | Kkb 02 Fluid Production Gmbh | Liquid enriched with a gas, a method of enriching a liquid with a gas, and an apparatus for enriching a liquid with a gas |
DE19752719A1 (de) * | 1997-11-28 | 1999-07-01 | Damann Franz Josef Dipl Ing | Katalytischer Reaktor |
US6602467B1 (en) | 1998-07-24 | 2003-08-05 | Therox, Inc. | Apparatus and method for blood oxygenation |
US6235641B1 (en) | 1998-10-30 | 2001-05-22 | Fsi International Inc. | Method and system to control the concentration of dissolved gas in a liquid |
US6406551B1 (en) | 1999-05-14 | 2002-06-18 | Fsi International, Inc. | Method for treating a substrate with heat sensitive agents |
US6274506B1 (en) | 1999-05-14 | 2001-08-14 | Fsi International, Inc. | Apparatus and method for dispensing processing fluid toward a substrate surface |
US6759008B1 (en) | 1999-09-30 | 2004-07-06 | Therox, Inc. | Apparatus and method for blood oxygenation |
US6387324B1 (en) * | 1999-09-30 | 2002-05-14 | Therox, Inc. | Apparatus and method for blood oxygenation |
EP1767230B1 (de) * | 1999-09-30 | 2011-11-16 | TherOx, Inc. | Vorrichtung und Verfahren zur Blutoxygenierung |
US6890482B2 (en) | 1999-09-30 | 2005-05-10 | Therox, Inc. | Apparatus for blood oxygenation |
US6576191B1 (en) * | 1999-09-30 | 2003-06-10 | Therox, Inc. | Apparatus for blood oxygenation |
US6273402B1 (en) | 2000-01-10 | 2001-08-14 | Praxair Technology, Inc. | Submersible in-situ oxygenator |
US7008535B1 (en) * | 2000-08-04 | 2006-03-07 | Wayne State University | Apparatus for oxygenating wastewater |
US6390456B1 (en) * | 2000-11-30 | 2002-05-21 | Sen-Yung Lee | Bubble generating device |
US20020085971A1 (en) * | 2001-01-03 | 2002-07-04 | Raniwala Subodh K. | Bottle sterilizing system and method |
US6613280B2 (en) * | 2001-03-20 | 2003-09-02 | Therox, Inc. | Disposable cartridge for producing gas-enriched fluids |
US6582387B2 (en) * | 2001-03-20 | 2003-06-24 | Therox, Inc. | System for enriching a bodily fluid with a gas |
US6758462B2 (en) * | 2001-10-17 | 2004-07-06 | Pepsico, Inc. | Carbonation system and method |
DE10250707B4 (de) * | 2002-10-31 | 2010-08-12 | Roland Damann | Vorrichtung zur Lösung von Gas in Flüssigkeit |
US7159854B2 (en) * | 2003-08-21 | 2007-01-09 | Glr Solutions Ltd. | Apparatus and method for producing small gas bubbles in liquids |
NO20034330D0 (no) * | 2003-09-26 | 2003-09-26 | Norsk Hydro As | Fremgangsmåte for blanding av to fluider og mikser for utövelse av slik fremgangsmåte |
US9315402B2 (en) | 2004-05-25 | 2016-04-19 | Board Of Trustees Of The University Of Arkansas | Systems and methods for wastewater treatment |
US9340438B2 (en) | 2004-05-25 | 2016-05-17 | Board Of Trustees Of The University Of Arkansas | Systems and methods for delivering dissolved gases into force-main and gravity sewers |
US7255332B2 (en) | 2004-05-25 | 2007-08-14 | The Board Of Trustees Of The University Of Arkansas | System and method for dissolving gases in liquids |
US9248415B2 (en) | 2004-05-25 | 2016-02-02 | Board Of Trustees Of The University Of Arkansas | Systems and methods for maximizing dissolved gas concentration of a single species of gas from a mixture of multiple gases |
SG120172A1 (en) * | 2004-08-10 | 2006-03-28 | Beng Lai Koh | Mixing apparatus |
EP1885481B1 (de) * | 2005-05-25 | 2016-01-20 | The Board Of Trustees Of The University Of Arkansas | Verfahren zur auflösung eines gases in einer flüssigkeit |
US7163632B1 (en) * | 2006-01-30 | 2007-01-16 | Speece Richard E | System and method for oxygenation for wastewater treatment |
US9180939B2 (en) * | 2008-01-17 | 2015-11-10 | Dale C. Barr | Systems and methods for watercraft having marine environment enhancement capability |
US10421677B2 (en) | 2008-01-17 | 2019-09-24 | Dale C. Barr | Systems and methods for watercraft having invasive species mitigation capability |
US8500104B2 (en) | 2010-06-07 | 2013-08-06 | James Richard Spears | Pressurized liquid stream with dissolved gas |
US8602063B2 (en) * | 2011-02-08 | 2013-12-10 | Hamilton Sundstrand Corporation | Gas over liquid accumulator |
CA2841951C (en) * | 2011-08-11 | 2015-06-30 | Howard Wang | Liquid aerator |
US10077418B2 (en) | 2015-04-15 | 2018-09-18 | Board Of Trustees Of The University Of Arkansas | Method for improved rate and control of beverage carbonation with automatic shut-off |
US10933388B1 (en) | 2017-07-07 | 2021-03-02 | Jmf Watercraft Design Llc | H20-oxygenation method and oxygenated live well |
US11541369B1 (en) * | 2019-01-29 | 2023-01-03 | Philip Jonathon Mason | Rotating tissue digestor system and method of use |
CN113908707B (zh) * | 2021-10-14 | 2024-09-27 | 北控水务(中国)投资有限公司 | 一种用于调节原水pH的二氧化碳投加装置及方法 |
CN114259938B (zh) * | 2021-12-01 | 2023-02-03 | 青岛双瑞海洋环境工程股份有限公司 | 快速混合溶解装置 |
Family Cites Families (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE276665C (de) * | ||||
US2217841A (en) * | 1937-09-13 | 1940-10-15 | Carl J Holinger | Apparatus for carbonating water |
US2339640A (en) * | 1940-08-03 | 1944-01-18 | Carl J Holinger | Liquid carbonation |
FR1081893A (fr) * | 1953-05-11 | 1954-12-23 | Procédé et appareil pour la saturation des liquides en gaz | |
CH370057A (de) * | 1959-05-21 | 1963-06-30 | Buss Ag | Verfahren zum Inkontaktbringen eines Gases mit einer Flüssigkeit und Einrichtung zur Ausübung des Verfahrens |
SE360571B (de) * | 1971-02-09 | 1973-10-01 | Electrolux Ab | |
GB1365294A (en) * | 1971-10-13 | 1974-08-29 | Engineering Developments Birmi | Apparatus for effecting aerobic degradation by aeration |
SU484378A1 (ru) * | 1973-04-09 | 1975-09-15 | Всесоюзный Дважды Ордена Трудового Красного Знамени Теплотехнический Научно-Исследовательский Институт Им. Ф.Э.Дзержинского | Водоструйный газожидкостный эжектор |
SE375704B (de) * | 1973-09-12 | 1975-04-28 | Volvo Flygmotor Ab | |
US3865908A (en) * | 1974-01-15 | 1975-02-11 | Benedict E Hirshon | Aerators with de-icing means |
DE2507698C2 (de) * | 1975-02-22 | 1984-10-25 | Linde Ag, 6200 Wiesbaden | Vorrichtung zum Begasen einer Flüssigkeit |
DE2725592A1 (de) * | 1977-06-07 | 1978-12-21 | Eduard Kamelmacher | Anlage zur fluessigkeitsbehandlung |
US4466928A (en) * | 1978-08-30 | 1984-08-21 | Dorr-Oliver Incorporated | Apparatus for dissolution of gases in liquid |
US4564480A (en) * | 1978-12-20 | 1986-01-14 | Eduard Kamelmacher | Aeration system and method |
CH658481A5 (de) * | 1983-02-18 | 1986-11-14 | Escher Wyss Gmbh | Flotationsvorrichtung zum flotieren von aus altpapier gewonnener faserstoffsuspension. |
DE3466667D1 (en) * | 1984-02-23 | 1987-11-12 | Bbc Brown Boveri & Cie | Water treatment method and apparatus |
-
1985
- 1985-01-16 DE DE19853501175 patent/DE3501175A1/de active Granted
- 1985-10-03 AU AU48681/85A patent/AU4868185A/en not_active Abandoned
- 1985-10-03 US US06/908,065 patent/US4735750A/en not_active Expired - Lifetime
- 1985-10-03 WO PCT/EP1985/000515 patent/WO1986004262A1/de active IP Right Grant
- 1985-10-03 DE DE8585905326T patent/DE3567815D1/de not_active Expired
- 1985-10-03 EP EP85905326A patent/EP0208696B1/de not_active Expired
-
1988
- 1988-07-04 CA CA000571069A patent/CA1318240C/en not_active Expired - Fee Related
Non-Patent Citations (1)
Title |
---|
See references of WO8604262A1 * |
Also Published As
Publication number | Publication date |
---|---|
DE3567815D1 (en) | 1989-03-02 |
US4735750A (en) | 1988-04-05 |
AU4868185A (en) | 1986-08-13 |
CA1318240C (en) | 1993-05-25 |
DE3501175A1 (de) | 1986-07-17 |
EP0208696B1 (de) | 1989-01-25 |
DE3501175C2 (de) | 1988-07-14 |
WO1986004262A1 (en) | 1986-07-31 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP0208696A1 (de) | Verfahren zur lösung von gas in flüssigkeit. | |
DE3887711T2 (de) | Vorrichtung und Verfahren zur Behandlung von unter hohem Druck mit Sauerstoff gesättigtem Wasser. | |
DE2216304C3 (de) | Einrichtung zur Umwälzung und Belüftung einer sich in einem Belebungsbecken einer Kläranlage befindenden Flüssigkeit | |
DE60033620T2 (de) | Vorrichtung und verfahren zur erzeugung von gasmikrobläschen in einer flüssigkeit | |
DE69103587T2 (de) | Ejektor und seine Verwendung in einem Verfahren zur aeroben Wasserbehandlung. | |
DE2542965A1 (de) | Verfahren und vorrichtung zur sauerstoffanreicherung von fluessigkeiten | |
DE69914049T2 (de) | Gasauflösung | |
DE3006935C2 (de) | Vorrichtung zum Einleiten von Luft in Abwasser | |
CH619199A5 (de) | ||
DE2507698A1 (de) | Verfahren und vorrichtung zur begasung von fluessigkeiten | |
WO2014041146A1 (de) | Stationäre und mobile vorrichtung zum energieoptimalen einbringen eines gases, eines gasgemisches oder eines fluides in eine flüssigkeit durch einen gesteuerten eintrag einzelner blasen oder tropfen eines gases, gasgemisches oder fluides | |
DE2300157B2 (de) | Verfahren und einrichtung zur biologischen reinigung von abwasser | |
DE60119717T2 (de) | Verfahren und vorrichtung zur behandlung von wasser mittels flotation | |
DE2635137A1 (de) | Anlage und verfahren zur abfallbehandlung und festkoerpertrennung | |
DE3733583A1 (de) | Verfahren und vorrichtung zur erzeugung feinster luftblasen zur flotation von schlaemmen | |
DE102021206089A1 (de) | Vorrichtung zur Aufbereitung von Wasser | |
DE4405961C2 (de) | Vorrichtung zum Begasen einer Flüssigkeit | |
DE69933508T2 (de) | Wirbelgenerator für feine bläschen und verfahren | |
DE4337091A1 (de) | Verfahren zum Betreiben eines Wasserbelüftungssystems sowie Vorrichtung, insbesondere zur Durchführung des Verfahrens | |
EP0165228B1 (de) | Vorrichtung zum Belüften von strömenden Medien | |
EP0328035A2 (de) | Anordnung zur Behandlung von Industrieabwässern | |
EP1369386B1 (de) | Einrichtung zur Belüftung von Abwasser und zur Reinigung einer Membrananlage und diese aufweisende kleine Kläranlage oder Kleinkläranlage | |
DE8700622U1 (de) | Vorrichtung zur Mischung und Lösung von Gas in Flüssigkeit | |
DE19517444C1 (de) | Vorrichtung für die Zufuhr von Sauerstoff in Abwasser | |
DE2938264A1 (de) | Verfahren und vorrichtung zur wasserreinigung und/oder -belueftung durch entspannungsflotation |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
17P | Request for examination filed |
Effective date: 19860903 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AT BE CH DE FR GB IT LI LU NL SE |
|
17Q | First examination report despatched |
Effective date: 19871124 |
|
GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
AK | Designated contracting states |
Kind code of ref document: B1 Designated state(s): AT BE CH DE FR GB IT LI LU NL SE |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: BE Effective date: 19890125 |
|
REF | Corresponds to: |
Ref document number: 40304 Country of ref document: AT Date of ref document: 19890215 Kind code of ref document: T |
|
REF | Corresponds to: |
Ref document number: 3567815 Country of ref document: DE Date of ref document: 19890302 |
|
ITF | It: translation for a ep patent filed | ||
ET | Fr: translation filed | ||
GBT | Gb: translation of ep patent filed (gb section 77(6)(a)/1977) | ||
PLBE | No opposition filed within time limit |
Free format text: ORIGINAL CODE: 0009261 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT |
|
26N | No opposition filed | ||
ITTA | It: last paid annual fee | ||
EPTA | Lu: last paid annual fee | ||
EAL | Se: european patent in force in sweden |
Ref document number: 85905326.6 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: GB Payment date: 19991013 Year of fee payment: 15 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: SE Payment date: 19991019 Year of fee payment: 15 Ref country code: LU Payment date: 19991019 Year of fee payment: 15 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: NL Payment date: 19991020 Year of fee payment: 15 Ref country code: CH Payment date: 19991020 Year of fee payment: 15 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: FR Payment date: 19991021 Year of fee payment: 15 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: AT Payment date: 19991031 Year of fee payment: 15 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: LU Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20001003 Ref country code: GB Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20001003 Ref country code: AT Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20001003 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: SE Free format text: THE PATENT HAS BEEN ANNULLED BY A DECISION OF A NATIONAL AUTHORITY Effective date: 20001030 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: LI Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20001031 Ref country code: CH Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20001031 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: NL Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20010501 |
|
GBPC | Gb: european patent ceased through non-payment of renewal fee |
Effective date: 20001003 |
|
REG | Reference to a national code |
Ref country code: CH Ref legal event code: PL |
|
EUG | Se: european patent has lapsed |
Ref document number: 85905326.6 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: FR Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20010629 |
|
NLV4 | Nl: lapsed or anulled due to non-payment of the annual fee |
Effective date: 20010501 |
|
REG | Reference to a national code |
Ref country code: FR Ref legal event code: ST |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: DE Payment date: 20050429 Year of fee payment: 20 |