SU728710A3 - Method of gas-saturating of liquid - Google Patents
Method of gas-saturating of liquid Download PDFInfo
- Publication number
- SU728710A3 SU728710A3 SU762310555A SU2310555A SU728710A3 SU 728710 A3 SU728710 A3 SU 728710A3 SU 762310555 A SU762310555 A SU 762310555A SU 2310555 A SU2310555 A SU 2310555A SU 728710 A3 SU728710 A3 SU 728710A3
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- liquid
- gas
- jets
- diameter
- saturating
- Prior art date
Links
- 239000007788 liquid Substances 0.000 title claims abstract description 25
- 238000000034 method Methods 0.000 title claims description 11
- 238000009738 saturating Methods 0.000 title claims description 4
- 239000006185 dispersion Substances 0.000 claims description 4
- 230000000694 effects Effects 0.000 claims description 3
- 239000007791 liquid phase Substances 0.000 claims description 2
- 238000013019 agitation Methods 0.000 abstract 1
- 239000007787 solid Substances 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 20
- 239000012530 fluid Substances 0.000 description 3
- 230000005484 gravity Effects 0.000 description 2
- GEHJYWRUCIMESM-UHFFFAOYSA-L sodium sulfite Chemical compound [Na+].[Na+].[O-]S([O-])=O GEHJYWRUCIMESM-UHFFFAOYSA-L 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000012071 phase Substances 0.000 description 1
- 235000010265 sodium sulphite Nutrition 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000009827 uniform distribution Methods 0.000 description 1
- 238000004065 wastewater treatment Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/02—Aerobic processes
- C02F3/12—Activated sludge processes
- C02F3/20—Activated sludge processes using diffusers
-
- 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
- B01F23/232—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids using flow-mixing means for introducing the gases, e.g. baffles
- B01F23/2321—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids using flow-mixing means for introducing the gases, e.g. baffles by moving liquid and gas in counter current
- B01F23/23211—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids using flow-mixing means for introducing the gases, e.g. baffles by moving liquid and gas in counter current the liquid flowing in a thin film to absorb the gas
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
- B01F25/20—Jet mixers, i.e. mixers using high-speed fluid streams
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/10—Biological treatment of water, waste water, or sewage
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Microbiology (AREA)
- Hydrology & Water Resources (AREA)
- Biodiversity & Conservation Biology (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
- Physical Or Chemical Processes And Apparatus (AREA)
- Treating Waste Gases (AREA)
- Aeration Devices For Treatment Of Activated Polluted Sludge (AREA)
- Gas Separation By Absorption (AREA)
Abstract
Description
1one
Изобретение относитс к способам обработки жидкости газом и может йайти применение в химической промышленности , а также в области очистки сточных вод.The invention relates to methods for treating liquids with gas and may be used in the chemical industry, as well as in the field of wastewater treatment.
Известен способ насыщени жидкости газом, заключающийс в подаче газа в слой жидкости через коническую перфорированную насадку 1.A known method of saturating a liquid with a gas consists in supplying a gas to a layer of liquid through a conical perforated nozzle 1.
Однако известный способ не позвол ет достигнуть эффективного диспергировани газа и жидкости.However, the known method does not allow for the effective dispersion of gas and liquid.
Известен также способ насыщени жидкости газом, заключающийс в подаче струй газа навстречу друг другу в слой жидкости на рассто нии 50-500 мм от нижнего уровн жидкостной фазы со скоростью 5-150 м/с 2 .There is also known a method of saturating a liquid with a gas, which consists in supplying gas jets towards each other in a layer of liquid at a distance of 50-500 mm from the lower level of the liquid phase at a speed of 5-150 m / s 2.
Однако и этот способ не позвол ет достигнуть высокой степени диспергировани газа и перемешивани его с жидкостью.However, this method does not allow a high degree of gas dispersion and mixing with the liquid to be achieved.
Сцелью повышени эффекта насыщени путем повышени степени диспергировани газа, в , предлагаемом способе струи газа направл ют под углом до 60 вверх и вниз от горизонтальной плоскости.The purpose of increasing the saturation effect by increasing the degree of gas dispersion, in the proposed method, gas jets are directed at an angle of up to 60 up and down from the horizontal plane.
Способ осуществл етс следу ощим образом.The method is carried out in the following manner.
Вблизи дна резервуара г; жидкостью на рассто нии 50-500 мм, предпочтительно 100-300 мм, от дна на максимум 50% поперечного сечени жидкости в горизснтш1ьной плоскости и с наклоном до 60 вверх и вниз, предпочтительно с наклоном ЗО, подаютс расход. щиес газовые струи. Эти струи распадаютс при столкновении с жидкостью и потом текут в виде Near the bottom of the tank g; liquid at a distance of 50-500 mm, preferably 100-300 mm, from the bottom to a maximum of 50% of the cross-section of the liquid in the horizontal plane and with a slope of up to 60 up and down, preferably with the slope of the RO, the flow rate is applied. gas streams. These jets disintegrate when they collide with a liquid and then flow in the form of
0 пузырьков на поверхность жидкости. При этом в массе жидкости, пронизываемой rasoBHMii стру ми, возникают вертикальные зоны с удельным весом ниже удельного веса жидкости, и 0 bubbles on the surface of the liquid. At the same time, in the mass of the fluid penetrated by rasoBHMii jets, vertical zones appear with a specific gravity below the specific gravity of the fluid, and
5 происходит циркул ционное движение жидкости вверх и вниз, причем скорость этого движени зависит от количества имеющихс в жидкости пузырьков газа и может достигать вблизи 5, there is a circulation movement of the liquid up and down, and the speed of this movement depends on the number of gas bubbles in the liquid and can be close to
0 места ввода газа 0,5-2,0 м/с. Значительна скорость циркул ционного движени жидкости вызывает кроме перемешивани дополнительно дробление пузырьков газа за счет воздей5 стви на газовые струи перпендикул рно направленных потоков жидкости.0 places to enter gas 0.5-2.0 m / s. The significant speed of the circulating motion of the fluid, in addition to mixing, additionally splits the gas bubbles due to the effect of perpendicularly directed liquid flows on the gas jets.
Кроме столкновени текущей вертикально жидкости с газовыми стру ми значительную роль играет также равномерное распределение газа в жидкости . Во врем течени соприкасающиес между собой пузырьки газа соедин ютс , вследствие чего уменьшаетс обща поверхность соприкосновени двух фаз. Это вление в значительной мере устранено подачей газа расход щимис стру ми вверх и вниз с углом наклона до бО к горизонтальной плоскости. Диаметр газовых струй при их входе в жидкость принимгиот от 0,2 до 3 MMf а их скорость - от 5 до 150 м/с. При этом в слое жидкости образуютс пузырьки, имеющие средний диаметр меньше 1 мм. При пропускании воздуха через раствор сульфита натри при том же расходе энергий по сравнению с известным способом предлагаемый способ дал возможность вводить в жидкость вдвое большее количество кислорода.In addition to the collision of a vertically flowing liquid with gas jets, the uniform distribution of the gas in the liquid also plays a significant role. During the flow, the gas bubbles that are in contact with each other join together, as a result of which the total contact surface of the two phases is reduced. This phenomenon is largely eliminated by supplying gas with upward and downward jets of gas at an angle of inclination to FW to the horizontal plane. The diameter of the gas jets at their entry into the liquid is taken from 0.2 to 3 MMf and their speed is from 5 to 150 m / s. In this case, bubbles are formed in the liquid layer having an average diameter of less than 1 mm. When air is passed through a sodium sulfite solution with the same energy consumption as compared with the known method, the proposed method made it possible to introduce twice the amount of oxygen into the liquid.
Claims (1)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| HUMA002650 HU171926B (en) | 1975-02-12 | 1975-02-12 | Gas dispersing method in coherent fluid phase |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU728710A3 true SU728710A3 (en) | 1980-04-15 |
Family
ID=10998770
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU762310555A SU728710A3 (en) | 1975-02-12 | 1976-01-07 | Method of gas-saturating of liquid |
Country Status (8)
| Country | Link |
|---|---|
| JP (1) | JPS5194473A (en) |
| DE (1) | DE2542656A1 (en) |
| FR (1) | FR2300608A1 (en) |
| GB (1) | GB1488545A (en) |
| HU (1) | HU171926B (en) |
| NL (1) | NL7512506A (en) |
| SE (1) | SE7510514L (en) |
| SU (1) | SU728710A3 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1595191A (en) * | 1977-02-16 | 1981-08-12 | Boc International Ltd | Treatment with oxygen of sewage in sewers |
| FR2484862B1 (en) * | 1980-06-18 | 1984-09-14 | Inst Nat Rech Chimique | PROCESS AND DEVICE FOR TRANSFERRING GAS IN A LIQUID APPLICABLE IN PARTICULAR TO WATER TREATMENT, BIOTECHNOLOGY AND THE CHEMICAL INDUSTRY |
| GB8813468D0 (en) * | 1988-06-08 | 1988-07-13 | Campbell E M | Device for circulation & gas exchange in liquids |
-
1975
- 1975-02-12 HU HUMA002650 patent/HU171926B/en unknown
- 1975-09-19 SE SE7510514A patent/SE7510514L/en unknown
- 1975-09-24 DE DE19752542656 patent/DE2542656A1/en active Pending
- 1975-09-26 FR FR7529501A patent/FR2300608A1/en active Granted
- 1975-10-10 GB GB4160075A patent/GB1488545A/en not_active Expired
- 1975-10-24 NL NL7512506A patent/NL7512506A/en not_active Application Discontinuation
- 1975-12-15 JP JP14854375A patent/JPS5194473A/ja active Pending
-
1976
- 1976-01-07 SU SU762310555A patent/SU728710A3/en active
Also Published As
| Publication number | Publication date |
|---|---|
| DE2542656A1 (en) | 1976-08-26 |
| FR2300608A1 (en) | 1976-09-10 |
| FR2300608B1 (en) | 1978-03-17 |
| JPS5194473A (en) | 1976-08-19 |
| NL7512506A (en) | 1976-08-16 |
| GB1488545A (en) | 1977-10-12 |
| HU171926B (en) | 1978-04-28 |
| SE7510514L (en) | 1976-08-13 |
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