CN103406082B - A kind of electromagnetism strengthens method and the device thereof of gas dissolution in liquid - Google Patents
A kind of electromagnetism strengthens method and the device thereof of gas dissolution in liquid Download PDFInfo
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- CN103406082B CN103406082B CN201310329680.7A CN201310329680A CN103406082B CN 103406082 B CN103406082 B CN 103406082B CN 201310329680 A CN201310329680 A CN 201310329680A CN 103406082 B CN103406082 B CN 103406082B
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Abstract
The present invention discloses method and the device thereof of gas dissolution in a kind of electromagnetism fortified water body medium, belongs to the technical field of carrying out water resource purification and protection with magnetic field; This device comprises gas outlet, screen cloth, water inlet, spray head, reaction bed, filler unload mouth, air inlet, delivery port, shell body, the magnetic field that the heavy current that the present invention adopts direct current to control is formed, desired gas and water are magnetized simultaneously, gas after magnetization and magnetization after water body medium between define magnetic attracting " association " by the random motion of molecule, the invention provides a kind of processing method that can reduce energy consumption and cost, the method can increase oxygen, ozone etc. paramagnetic gas solubility in water body medium.
Description
Technical field
The present invention discloses method and the device thereof of gas dissolution in a kind of electromagnetism fortified water body medium, belongs to the technical field of carrying out water resource purification and protection with magnetic field.
Background technology
Along with people more and more pay attention to environmental protection, relevant laws and regulations gradual perfection, also more and more stricter to the requirement of water treatment, in current method for treating water, no matter be activated sludge process or some high-level oxidation technology, all need to utilize the gas be dissolved in water body medium to carry out, and to face maximum problem be at present exactly that gas dissolution is incomplete, and the problem of gas escape, a saturation value is all there is in the solubility of any gas in water body medium under certain given state, we utilize and consume the gas be dissolved in water and carry out chemical reaction and can consume the concentration of these gases in water, for oxygen, Aerobic biological process needs a large amount of dissolved oxygens to provide favourable growing environment for microorganism, oxygen is the necessary condition of aerobic microbiological existence, microbial metabolism can be hindered for hypoxgia, cause the microbial growth of the resistance to low dissolved oxygen environments such as der Pilz, mud is not easily precipitated, cause sludge bulking, the equipment such as current aerator, oxygenation is carried out to water body medium, to ensure that dissolved oxygen maintains a relatively high environment, but there is again new problem thus, the equipment power consumptions such as aerator are higher, the utilization rate entering the most of gas in water body medium is not high, what the gas newly entered in water caused agitates, make again the oxygen loss of having dissolved, formed and repeat oxygenation, in sum, be necessary that finding one can reduce energy consumption, with low cost, the simple treating apparatus of method, meet oxygen, ozone etc. have paramagnetic gas solubility in water body medium to increase.
The capital equipment that the biological wastewater treatment that existing environment protection sewage purifies is used for oxygenation is centrifugal blower and Roots blower, power has 290KW and 630KW, weight is more than 3.5 tons, the gathering, activating device that prior art adopts high energy rare earth permanent-magnetic material to make and spiral magnetizing device, gathering, activating device and spiral magnetizing device are contained in negative pressure gas transmission tube appropriate location respectively, the spiral magnetizing device of high-speed rotation can produce vacuum under water, the air causing oxygen enrichment to activate because of negative pressure enters in water and fully dissolves, thus reach the effect of oxygenation, gas stirs fully, broken, mixing, become small bubble, be blended in equably in sewage, meanwhile, the effect of quick runner equally easily makes these bubbles dissolved, and loss is out again, and the gas-liquid mixture leaving equipment stops suddenly the gas escape problem stirring and also can cause after decompression to cause due to the change of experimental situation condition.
Summary of the invention
In current method for treating water, no matter be activated sludge process or some high-level oxidation technology, all need to utilize the gas be dissolved in water body medium to carry out, and to face maximum problem be at present exactly that gas dissolution is incomplete, and the problem of gas escape, a kind of electromagnetism is the object of the present invention is to provide to strengthen the method for gas dissolution in liquid, under normal temperature and pressure, gas and liquid medium are carried out magnetizing to improve gas solubility in a liquid under the existent condition of magnetic field, wherein magnetic field intensity is 0.1 ~ 10T simultaneously;
Gas described in the present invention has paramagnetic gas, typical in oxygen and ozone, air inlet can be pure gas, also can be mist, if only need oxygen, then directly utilize air, the flow velocity of gas is determined according to the scale of device and embody rule, liquid medium refers to the liquid be easily magnetized, wherein the temperature 10 ~ 50 DEG C of liquid medium, adopts direct current to carry out controlling magnetic field.
Another object of the present invention is to provide a kind of tower-type fixed bed gas-liquid reaction apparatus for gas dissolution in electromagnetism strengthening liquid, this device comprises gas outlet 1, screen cloth 2, water inlet 3, spray head 4, filler unloads mouth 7, air inlet 9, delivery port 11, shell body 12, reaction bed 14, the top of shell body 12 is located in gas outlet 1, screen cloth 2 is fixed with in the lower end of gas outlet 1, spray head 4 is located at above reaction bed 14, spray head 4 is connected with the water inlet 3 on shell body 12, reaction bed 14 is provided with in the inside of shell body 12, filler unloads mouth 7 and to be arranged on shell body 12 and to be connected with reaction bed 14, delivery port 11 is provided with in the bottom of shell body 12, gas-liquid equalization chamber 10 is provided with between reaction bed 14 and delivery port 11, gas-liquid equalization chamber 10 is provided with air inlet 9,
The reaction bed 14 of tower-type fixed bed gas-liquid reaction apparatus of the present invention comprises filler 5, solenoid 6, packing support plate 8, inner housing 13, the bottom of reaction bed 14 is located at by packing support plate 8, packing support plate 8 is fixed on shell body 12, packing support 8 is provided with hole, gas enters into inside reaction bed 14 by hole, inner housing 13 is arranged on packing support plate 8, in inner housing 13 inside, filler 5 is housed, outside inner housing 13, be wound with solenoid 6, solenoid 6 is connected with circumscripted power line;
The resistivity of the solenoid of tower-type fixed bed gas-liquid reaction apparatus of the present invention is 1.6 × 10
-8~ 1.6 × 10
-6the material of Ω m, laboratory generally selects sectional area to be 4 ~ 25mm
2copper conductor;
The shell body material of reaction unit of the present invention is insulation and nonmagnetic substance, the safety problem too strongly brought to prevent electromagnetic induction; Packing layer is various nonmagnetic substance; such as, active carbon, glass dregs; zeolite etc.; according to concrete operations needs, arrange the filler of different-grain diameter, the object of filler expands gas liquid interfacial area; in addition; fill activated carbon granule or zeolite etc., have certain suction-operated to gas, can also more effective intensified response efficiency.
Tower-type fixed bed gas-liquid reaction apparatus of the present invention to be applied in strengthening liquid in gas dissolution, concrete steps are as follows: at normal temperatures and pressures, to have paramagnetic gas is passed into gas-liquid equalization chamber 10 from air inlet 9, liquid is passed into reaction bed 14 from water inlet 3 through spray head 4, make that there is paramagnetic gas fully to mix in reaction bed 14 with liquid, switch on power, make there is paramagnetic gas and liquid medium magnetizes simultaneously, be difficult to the object gas that the gas that is magnetized and small part do not dissolve and then leave reactor by gas outlet 1, thus form at whole inside reactor the effect that is similar to gas separaion, object gas is made to obtain the accumulation of higher concentration, gas after magnetization defines magnetic attracting " association " with the liquid after magnetization by the random motion of molecule, the solubility of desired gas in water body medium is increased greatly, and exceed original saturation value, screen cloth 2 prevents the liquid of toxic component from being got by bubble.
Beneficial effect of the present invention is:
(1) the method for the invention is conducive to improving gas solubility in a liquid, enables gas reaction in a liquid obtain sufficient raw material, can reduce the energy consumption of charger under square one;
(2) the inventive method can be applied to the many aspects of water treatment, such as aerobic aeration pond, ozonization ponds etc., increase the specific utilization coefficient of original technology, minimizing equipment consumes energy, and the comprehensive utilization ratio of oxygen and ozone improves more than 10 percentage points on original basis;
(3) device noiseless of the present invention, energy consumption is relatively low, and power is only 0.8 ~ 5KW, and structure is simple and easy to make;
(4) the device of the present invention form that need not stir, utilize this means not needing excessive power of the buoyancy of the gravity of water and bubble, ensure that the stability of experimental situation, not easily loss is out again for bubble, fluid sample character like this through reaction bed gained is relatively stable, determines that reflection effect provides the foundation condition for controlling curent change magnetic field intensity;
(5) device of the present invention can realize intermittent operation and mobility operation simultaneously, and compared with single operating unit, this method can provide more alternative condition, achieves gas-liquid two-phase and efficiently mixes, and can improve treatment effect in subsequent treatment;
(6) the present invention is easy to combine with prior art, such as Fenton process water treatment technology, and Ozonation treatment process etc., can improve treatment effect, simultaneously can also be cost-saving greatly;
(7) the present invention is applicable to the territory such as process, culture fishery, wet-treating industrial waste gas, hydrometallurgy of all kinds of sanitary sewage, and can provide certain help, the development in addition for ionic liquid also has application prospect very widely.
Accompanying drawing explanation
Fig. 1 is the structural representation of apparatus of the present invention;
In figure: 1-gas outlet, 2-screen cloth, 3-water inlet, 4-spray head, 5-filler, 6-solenoid, 7-filler unloads mouth, 8-packing support plate, 9-air inlet, 10-gas-liquid equalization chamber, 11-delivery port, 12-shell body, 13-inner housing, 14-reaction bed.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the invention will be further described, but scope is not limited to described content.
Embodiment 1
The present embodiment with the sewage in city domestic sewage treatment plant preliminary sedimentation tank exit for handling object, under normal temperature and pressure, magnetic field intensity are the condition of 0.1T, ozone and sewage are carried out magnetizing to improve the solubility of ozone in sewage, the present embodiment adopts tower-type fixed bed gas-liquid reaction apparatus to complete the method for gas dissolution in electromagnetism strengthening liquid simultaneously;
Tower-type fixed bed gas-liquid reaction apparatus comprises gas outlet 1, screen cloth 2, water inlet 3, spray head 4, filler unloads mouth 7, air inlet 9, delivery port 11, shell body 12, reaction bed 14, the top of shell body 12 is located in gas outlet 1, screen cloth 2 is fixed with in the lower end of gas outlet 1, spray head 4 is located at above reaction bed 14, spray head 4 is connected with the water inlet 3 on shell body 12, reaction bed 14 is provided with in the inside of shell body 12, filler unloads mouth 7 and to be arranged on shell body 12 and to be connected with reaction bed 14, delivery port 11 is provided with in the bottom of shell body 12, gas-liquid equalization chamber 10 is provided with between reaction bed 14 and delivery port 11, gas-liquid equalization chamber 10 is provided with air inlet 9,
Reaction bed 14 described in the present embodiment comprises filler 5, solenoid 6, packing support plate 8, inner housing 13, the bottom of reaction bed 14 is located at by packing support plate 8, packing support plate 8 is fixed on shell body 12 by the projection on shell body, inner housing 13 is arranged on packing support plate 8, packing support 8 is provided with hole, gas enters into inside reaction bed 14 by hole, in inner housing 13 inside, filler 5 is housed, solenoid 6 is wound with outside inner housing 13, solenoid 6 is connected with circumscripted power line, as shown in Figure 1;
In the tower-type fixed bed gas-liquid reaction apparatus of the present embodiment, filler 5 used is active carbon, and electromagnetic wire is sectional area is 4mm
2copper conductor.
The present embodiment with the sewage in city domestic sewage treatment plant preliminary sedimentation tank exit for handling object, with tower-type fixed bed gas-liquid reaction apparatus, ozone and sewage are carried out magnetizing to improve the solubility of ozone in sewage simultaneously, concrete steps are as follows: at normal temperatures and pressures, with the flow velocity of 20g/h, ozone is passed into gas-liquid equalization chamber 10 from air inlet 9, sewage sample is passed into reaction bed 14 from water inlet 3 through spray head 4, wherein the temperature of sewage is 50 DEG C, ozone is fully mixed in reaction bed 14 with sewage sample, dissolved gases is not had to be got rid of by gas outlet 1, can cycling and reutilization, in cold situation, namely without under the effect of externally-applied magnetic field, the gas-liquid of reaction unit inside is fully mixed, take out the sewage sample analysis of flowing out at the mouth of a river 11 and measure its COD value, every 2min sampling once, experimental result is as shown in table 1,
Repeat above operating procedure, difference is by the electric power starting of solenoid, and adjustment current strength is 1A, under the effect namely in the magnetic field that 0.1T is additional being, the gas-liquid of reaction unit inside is fully mixed, and every 2min sampling once.
Table 1: each period COD value in sewage after having magnetic field and not having magnetic field to react
As can be seen from the above table: to have externally-applied magnetic field lower than not having the COD value of externally-applied magnetic field, illustrate when there being externally-applied magnetic field, the solubility of ozone in water increases, better to wastewater treatment efficiency.
Embodiment 2:
The present embodiment with the sewage of city domestic sewage treatment plant secondary clarifier effluent mouth for handling object, under normal temperature and pressure, magnetic field intensity are the condition of 5T, air and sewage are carried out magnetizing to improve the solubility of oxygen in sewage, the present embodiment adopts tower-type fixed bed gas-liquid reaction apparatus to complete the method for gas dissolution in electromagnetism strengthening liquid simultaneously;
Tower-type fixed bed gas-liquid reaction apparatus comprises gas outlet 1, screen cloth 2, water inlet 3, spray head 4, filler unloads mouth 7, air inlet 9, delivery port 11, shell body 12, reaction bed 14, the top of shell body 12 is located in gas outlet 1, screen cloth 2 is fixed with in the lower end of gas outlet 1, spray head 4 is located at above reaction bed 14, spray head 4 is connected with the water inlet 3 on shell body 12, reaction bed 14 is provided with in the inside of shell body 12, filler unloads mouth 7 and to be arranged on shell body 12 and to be connected with reaction bed 14, delivery port 11 is provided with in the bottom of shell body 12, gas-liquid equalization chamber 10 is provided with between reaction bed 14 and delivery port 11, gas-liquid equalization chamber 10 is provided with air inlet 9,
Reaction bed 14 described in the present embodiment comprises filler 5, solenoid 6, packing support plate 8, inner housing 13, the bottom of reaction bed 14 is located at by packing support plate 8, packing support plate 8 is connected with shell body 12 by the groove on shell body, inner housing 13 is arranged on packing support plate 8, packing support 8 is provided with hole, gas enters into inside reaction bed 14 by hole, in inner housing 13 inside, filler 5 is housed, outside inner housing 13, be wound with solenoid 6, solenoid 6 is connected with circumscripted power line;
Filler 5 in the present embodiment is glass dregs, and electromagnetic wire is sectional area is 16mm
2copper conductor.
The present embodiment with the sewage of city domestic sewage treatment plant secondary clarifier effluent mouth for handling object, with tower-type fixed bed gas-liquid reaction apparatus, air and sewage are carried out magnetizing to improve the solubility of oxygen in sewage simultaneously, concrete steps are as follows: at normal temperatures and pressures, sewage is passed into reaction bed 14 from water inlet 3 through spray head 4, wherein the temperature of sewage is 30 DEG C, air blast is connected with air inlet 9, open air blast, emptying 5min, wait produced air-stable, with the flow velocity of 6g/h, air is passed into gas-liquid equalization chamber 10 from air inlet 9, tool air is fully mixed in reaction bed 14 with sewage, dissolved gases is not had to be got rid of by gas outlet 1, can cycling and reutilization, first the power supply of solenoid is closed, namely under there is no the condition of extra electric field, get 1min respectively, 2min, 5min, 8min, the efflux of 10min, measure its DO value respectively, list in table 2,
Repeat above operating procedure, difference is by the electric power starting of solenoid, and adjustment current strength is 50A, namely under the effect in the magnetic field that 5T is additional being, namely under having the condition of extra electric field, get the efflux of 1min, 2min, 5min, 8min, 10min respectively, measure its DO value respectively;
Table 2: each period DO value in sewage after having magnetic field and not having magnetic field to process
As can be seen from the above table: the DO value after magnetization is obviously high than unmagnetized DO, this illustrates in the presence of a magnetic field, and the solubility of oxygen in water increases.
Embodiment 3:
The present embodiment with PDF absorbing liquid for handling object, under normal temperature and pressure, magnetic field intensity are the condition of 10T, air and PDF absorbing liquid are carried out magnetizing to improve the solubility of air in PDF absorbing liquid, the present embodiment adopts tower-type fixed bed gas-liquid reaction apparatus to complete the method for gas dissolution in electromagnetism strengthening liquid simultaneously;
Tower-type fixed bed gas-liquid reaction apparatus comprises gas outlet 1, screen cloth 2, water inlet 3, spray head 4, filler unloads mouth 7, air inlet 9, delivery port 11, shell body 12, reaction bed 14, the top of shell body 12 is located in gas outlet 1, screen cloth 2 is fixed with in the lower end of gas outlet 1, spray head 4 is located at above reaction bed 14, spray head 4 is connected with the water inlet 3 on shell body 12, reaction bed 14 is provided with in the inside of shell body 12, filler unloads mouth 7 and to be arranged on shell body 12 and to be connected with reaction bed 14, delivery port 11 is provided with in the bottom of shell body 12, gas-liquid equalization chamber 10 is provided with between reaction bed 14 and delivery port 11, gas-liquid equalization chamber 10 is provided with air inlet 9,
Reaction bed 14 described in the present embodiment comprises filler 5, solenoid 6, packing support plate 8, inner housing 13, the bottom of reaction bed 14 is located at by packing support plate 8, packing support plate 8 is connected with shell body 12 by the groove on shell body, inner housing 13 is arranged on packing support plate 8, packing support 8 is provided with hole, gas enters into inside reaction bed 14 by hole, in inner housing 13 inside, filler 5 is housed, outside inner housing 13, be wound with solenoid 6, solenoid 6 is connected with circumscripted power line;
Filler 5 in the present embodiment is zeolite, and electromagnetic wire is sectional area is 25mm
2copper conductor.
The present embodiment with PDF absorbing liquid for handling object, with tower-type fixed bed gas-liquid reaction apparatus, air and PDF absorbing liquid are carried out magnetizing to improve the solubility of oxygen in PDF absorbing liquid simultaneously, concrete steps are as follows: at normal temperatures and pressures, PDF absorbing liquid and water inlet 3 are connected through spray head 4 to be passed in reaction bed 14, wherein the temperature of PDF absorbing liquid is 10 DEG C, air blast is connected with air inlet 9, open air blast, emptying 3min, wait produced air-stable, with 15g/h, air is passed into gas-liquid equalization chamber 10 from air inlet 9, air is fully mixed in reaction bed 14 with sewage, dissolved gases is not had to be got rid of by gas outlet 1, close the power supply of solenoid, namely under there is no the condition of extra electric field, at delivery port 11, efflux is got at place, obtain unmagnetized after sample solution,
Repeat above operating procedure, difference is by the electric power starting of solenoid, and adjustment current strength is 100A, and under the effect namely in the magnetic field that 10T is additional being, under namely having the condition of extra electric field, at delivery port 11, efflux is got at place, obtains the sample solution after magnetizing;
The each 500mL of sample solution got after unmagnetized and magnetization puts into closed container and preserves, and subsequently in two samples, passes into excessive H
2s gas, through peroxidization, a certain amount of sulphur is had to generate, result shows, the sulphur amount that sample solution after magnetization produces is 20g, and be 8g without the sulphur amount produced in magnetized sample solution, above result can illustrate, tower-type fixed bed gas-liquid reaction apparatus can will have paramagnetic gas and fluid tight combines, and real meaning achieves gas-liquid two-phase and efficiently mixes.
Claims (2)
1. one kind realizes the tower-type fixed bed gas-liquid reaction apparatus of the method for gas dissolution in electromagnetism strengthening liquid, it is characterized in that: this device comprises gas outlet (1), screen cloth (2), water inlet (3), spray head (4), filler unloads mouth (7), air inlet (9), delivery port (11), shell body (12), reaction bed (14), the top of shell body (12) is located in gas outlet (1), screen cloth (2) is fixed with in the lower end of gas outlet (1), spray head (4) is located at reaction bed (14) top, spray head (4) is connected with the water inlet (3) on shell body (12), reaction bed (14) is provided with in the inside of shell body (12), filler unloads mouth (7), and to be arranged on shell body (12) upper and be connected with reaction bed (14), delivery port (11) is provided with in the bottom of shell body (12), gas-liquid equalization chamber (10) is provided with between reaction bed (14) and delivery port (11), gas-liquid equalization chamber (10) is provided with air inlet (9),
Described reaction bed (14) comprises filler (5), solenoid (6), packing support plate (8), inner housing (13), the bottom of reaction bed (14) is located at by packing support plate (8), packing support plate (8) is fixed on shell body (12), packing support plate (8) is provided with hole, inner housing (13) is arranged on packing support plate (8), in inner housing (13) inside, filler (5) is housed, be wound with solenoid (6) in inner housing (13) outside, solenoid (6) is connected with circumscripted power line;
In described electromagnetism strengthening liquid, the method for gas dissolution is: gas and liquid medium are carried out magnetizing to improve gas solubility in a liquid under normal temperature and pressure, magnetic field existent condition, wherein magnetic field intensity is 0.1 ~ 10T simultaneously;
The temperature of described liquid medium is 10 ~ 50 DEG C.
2. the tower-type fixed bed gas-liquid reaction apparatus realizing the method for gas dissolution in electromagnetism strengthening liquid according to claim 1, is characterized in that: the resistivity of solenoid is 1.6 × 10
-8~ 1.6 × 10
-6Ω m.
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| CN104624070A (en) * | 2015-01-29 | 2015-05-20 | 于小波 | Gas-liquid mixing system and gas-liquid mixing method |
| CN107081099A (en) * | 2016-02-14 | 2017-08-22 | 优尼克生技股份有限公司 | Manufacturing equipment of the aqueous solution including chlorine dioxide and preparation method thereof |
| CN109650501A (en) * | 2019-02-13 | 2019-04-19 | 江苏嘉宇特种装备股份有限公司 | A kind of oxygen-increasing device based on magnetic energy |
| CN111707621B (en) * | 2020-06-24 | 2023-09-29 | 台州市路桥铭泰钣金股份有限公司 | Waste gas concentration detects quick-witted gas washing device for tunnel construction |
| CN112876024B (en) * | 2021-01-26 | 2022-07-05 | 同济大学 | Modification method for in-situ sludge reduction of sewage treatment plant |
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