CN101891309A - Method for transferring mass between gas and liquid by utilizing medium - Google Patents
Method for transferring mass between gas and liquid by utilizing medium Download PDFInfo
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- CN101891309A CN101891309A CN2010102331138A CN201010233113A CN101891309A CN 101891309 A CN101891309 A CN 101891309A CN 2010102331138 A CN2010102331138 A CN 2010102331138A CN 201010233113 A CN201010233113 A CN 201010233113A CN 101891309 A CN101891309 A CN 101891309A
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- liquid
- gas
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- mass transfer
- mass
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- 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
Abstract
The invention relates to a method for transferring mass between gas and liquid by utilizing a medium, in particular to a method for transferring mass between gas and liquid by utilizing a liquid-tight and non-gas-tight medium under certain pressure. The method is widely applied to aeration of oxygen in sewage in the fields of chemical industry, environmental protection and municipal engineering. The method is characterized in that the medium of layer structure is arranged between the gas and the liquid to separate the gas from the liquid, the liquid can not permeate the medium under 0-8m liquid pressure and the soluble volatile materials in the liquid permeate the medium to transfer mass to the gas phase in a volatile manner; the soluble materials in the gas permeate the medium to transfer mass to the liquid phase in a soluble manner; and mass transfer performs automatically. In the invention, a dielectric film or a fabric is used for separating the gas from the liquid and the liquid can not permeate the dielectric film or the fabric under certain liquid pressure; mass transfer performs automatically; and the medium increases the area of the mass transfer interface and improves the mass transfer efficiency. The method is simple in process, convenient to operate, high in mass transfer efficiency and obvious in energy saving effect.
Description
Technical field
The present invention relates to utilize between a kind of gas-liquid the method for medium mass transfer, specifically utilize impenetrable liquid under certain pressure, but gas-pervious medium carries out the mass transfer technology between gas-liquid.Be widely used in aeration in sewage of oxygen in chemical industry, environmental protection, the public works field, the water material of ammonia nitrogen in airborne stripping, liquid by the volatilization of medium in gas; Or the material in the gas is by the dissolved method of medium in liquid.
Background technology:
At present, in sewage treatment project, in order to keep the biotic environment of aerobic bacteria, need to consume a large amount of can be in water the aeration dissolved oxygen.As calculated, the power consumption of the aeration in the sewage disposal accounts for total power consumption 50%-60% of sewage work.The highly energy-consuming method of this aeration dissolved oxygen has a strong impact on the economic benefit of mass transfer.
Summary of the invention
The objective of the invention is to overcome the deficiency of background technology highly energy-consuming method, and provide a kind of medium of permeable watertight that utilizes to carry out the gas-liquid isolation as the mass transfer body, can save the method for utilizing the medium mass transfer between the gas-liquid of power consumption greatly, this method energy-saving effect is remarkable.
Realize the foregoing invention purpose by the following technical solutions: the method for utilizing the medium mass transfer between a kind of gas-liquid, it is characterized in that, the medium of laminate structure is set between gas and the liquid, medium separates gas-liquid, under the liquid pressure of 0-8 rice, liquid can not see through medium, and the dissolved volatizable material sees through medium to the gas phase mass transfer that volatilizees in the liquid; Soluble material permeance medium is to the liquid phase dissolved mass transfer in the gas; Described mass transfer carries out automatically.
The present invention compared with prior art, deielectric-coating or fabric are spaced apart with gas-liquid, liquid can not see through under certain again liquid pressure; Mass transfer carries out automatically, and medium has increased the area at mass transfer interface, has improved mass-transfer efficiency.Its technology is simple, and is easy to operate, the mass-transfer efficiency height, and energy-saving effect is remarkable.
Embodiment
Present embodiment is a method of utilizing the medium mass transfer between a kind of gas-liquid, concrete operation method is: the film or the cloth of placing the permeable watertight of laminate structure between gas and liquid, gas and liquid are separated, under the liquid pressure of 0-8 rice, the dissolved volatizable material sees through the film of permeable watertight or cloth to the gas phase automatic mass transfer that volatilizees in the liquid; The film of soluble material permeance permeable watertight or cloth are to the automatic mass transfer of liquid phase dissolved in the gas.
Sewage aeration embodiment
Embodiment 1: the plastic film of permeable watertight is overhanged the space with strut member be placed in the sewage, with plastic film air and sewage are separated, under 8 meters hydraulic pressure, sewage flows in the mechanical system of water; Air flows in the mechanical system of gas.Between gas-liquid because the solubleness imbalance, nitrogen material in stripping, the liquid in air makes the volatizable material evaporates mass transfer in the liquid phase arrive gas phase by the volatilization of medium in gas in the water, and the alkaline soluble materials oxygen in the gas phase dissolves mass transfer to liquid phase in liquid phase.Mass transfer carries out automatically, realizes the aeration of oxygen in sewage, has solved flowing of gas-liquid mixed mass transfer, has solved a large amount of energy consumption issues of gas-liquid mixed.
Embodiment 2: the cloth of permeable watertight is overhanged the space with strut member be placed in the sewage, air and sewage are separated, under 6 meters hydraulic pressure, sewage flows in the mechanical system of water; Air flows in the mechanical system of gas.Because the solubleness imbalance makes that the volatizable material evaporates mass transfer in the liquid phase arrives gas phase, the alkaline soluble materials in the gas phase is dissolved mass transfer to liquid phase in liquid phase between gas-liquid.Mass transfer carries out automatically, realizes the aeration of oxygen in sewage, and the mass transfer that has solved gas-liquid mixed flows, and has solved a large amount of energy consumption issues of gas-liquid mixed.
Embodiment 3: the non-woven fabrics of permeable watertight is overhanged the space with strut member be placed in the sewage, air and sewage are separated, under 0.8 meter hydraulic pressure, sewage flows in the mechanical system of water; Gas flows in the mechanical system of gas.Owing to the solubleness imbalance, make that the volatizable material ammonia nitrogen volatilization mass transfer in the liquid phase arrives gas phase between gas-liquid.Mass transfer carries out automatically, realizes the stripping of ammonia nitrogen in airborne, has solved flowing of gas-liquid mixed mass transfer, has solved a large amount of energy consumption issues of gas-liquid mixed.
The strut member that the present invention uses is made up of plastic stent and non-woven fabrics, and its structure is: swathe non-woven fabrics and form strut member outside plastic stent, the non-woven fabrics that usefulness swathes comes Supporting Media film or cloth, non-woven fabrics.
More than disclosed only be specific embodiments of the invention; though the present invention discloses as above with preferred embodiment; but the present invention is not limited thereto; any those skilled in the art can think variation; in not breaking away from design philosophy of the present invention and scope; the present invention is carried out various changes and retouching, all should drop within protection scope of the present invention.
Claims (2)
1. utilize the method for medium mass transfer between a gas-liquid, it is characterized in that, be provided with the medium of laminate structure between gas and the liquid, this medium separates gas, liquid, under the liquid pressure of 0-8 rice, the dissolved volatizable material sees through medium to the volatilizable mass transfer of gas phase in the liquid, and soluble material permeance medium is to the liquid phase dissolved mass transfer in the gas, and described mass transfer carries out automatically.
2. utilize the method for medium mass transfer between gas-liquid according to claim 1, it is characterized in that, the medium of layered structure is the film or the fabric of permeable watertight.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102331138A CN101891309A (en) | 2010-07-22 | 2010-07-22 | Method for transferring mass between gas and liquid by utilizing medium |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102331138A CN101891309A (en) | 2010-07-22 | 2010-07-22 | Method for transferring mass between gas and liquid by utilizing medium |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101891309A true CN101891309A (en) | 2010-11-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010102331138A Pending CN101891309A (en) | 2010-07-22 | 2010-07-22 | Method for transferring mass between gas and liquid by utilizing medium |
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| CN (1) | CN101891309A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1062357A (en) * | 1990-11-13 | 1992-07-01 | 中国科学院化学研究所 | High penetrability polypropylene microporous barrier and method for making thereof |
| WO2001028668A1 (en) * | 1999-10-15 | 2001-04-26 | N.V. Bekaert S.A. | Aeration diffuser |
| CN1562772A (en) * | 2004-04-08 | 2005-01-12 | 上海交通大学 | Ventilation and reaeration system with no power for treating land of sewage |
| CN1572360A (en) * | 2003-05-02 | 2005-02-02 | 诺里特加工技术控股有限公司 | Membrane filter with deaeration and method for the manufacture thereof |
| CN2756631Y (en) * | 2004-11-30 | 2006-02-08 | 河北理工大学 | Atmospheric medium aerator |
| CN1835812A (en) * | 2003-06-19 | 2006-09-20 | 程达毓 | Method of producing a porous membrane and waterproof, highly breathable fabric including the membrane |
| WO2010020989A1 (en) * | 2008-08-18 | 2010-02-25 | Ramot At Tel-Aviv University Ltd. | Reactor and method for treating contaminated water |
-
2010
- 2010-07-22 CN CN2010102331138A patent/CN101891309A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1062357A (en) * | 1990-11-13 | 1992-07-01 | 中国科学院化学研究所 | High penetrability polypropylene microporous barrier and method for making thereof |
| WO2001028668A1 (en) * | 1999-10-15 | 2001-04-26 | N.V. Bekaert S.A. | Aeration diffuser |
| CN1572360A (en) * | 2003-05-02 | 2005-02-02 | 诺里特加工技术控股有限公司 | Membrane filter with deaeration and method for the manufacture thereof |
| CN1835812A (en) * | 2003-06-19 | 2006-09-20 | 程达毓 | Method of producing a porous membrane and waterproof, highly breathable fabric including the membrane |
| CN1562772A (en) * | 2004-04-08 | 2005-01-12 | 上海交通大学 | Ventilation and reaeration system with no power for treating land of sewage |
| CN2756631Y (en) * | 2004-11-30 | 2006-02-08 | 河北理工大学 | Atmospheric medium aerator |
| WO2010020989A1 (en) * | 2008-08-18 | 2010-02-25 | Ramot At Tel-Aviv University Ltd. | Reactor and method for treating contaminated water |
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Open date: 20101124 |