CN101041480A - Sewage treatment apparatus by employing frequency mixing ultrasonic tecnnology - Google Patents
Sewage treatment apparatus by employing frequency mixing ultrasonic tecnnology Download PDFInfo
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Abstract
The invention discloses a wastewater disposing device through frequency mixing supersonic technology in wastewater disposing domain, which comprises the following steps: including mixed reactor with water inlet and outlet; setting at least two ultrasonic transducer of dissimilar working frequency; operating ultrasonic transducer at the same time; setting working frequency differential value of two ultrasonic transducer with different frequency at will at 16-800kHz.This device depends high-strength disposing capability can dispose a large quantity of ship ''three water'' at a short time.
Description
Technical field
The present invention relates to technical field of sewage, particularly relate to a kind of waste disposal plant that utilizes the frequency mixing ultrasonic technology.
Background technology
In the various sewage, the sewage that contains oils, organic pollutant, hydrobiont and pathogenic agent occupies very big proportion.Wherein, " three water " of boats and ships is very representative.
" three water " of boats and ships (being the general name of water ballast, washwater and machine limber water) is the material that the daily shipping business of boats and ships must use or produce.Because actual techniques condition and water intaking water source, " three water " contains hydrobiont and the pathogenic agent that oils or organic chemical polluted thing and strange land are moved into certainly.Because " three water " needs discharging inevitably or changes, will give the waters of discharging and pollution that oils and organic chemicals are brought in land and the invasion of external hydrobiont and pathogenic agent thus.Boats and ships " three water " are made it to reach the relevant criterion of discharging or using through efficient the processing, are various countries' strict supervise and examine in management always, the target of researching and developing energetically on treatment technology.
Current, on technology of handling at boats and ships " three water " and technical equipment, multiple technologies have been arranged.To drop into actual use below or be in technology in the research and development, as follows as background division of the present invention:
1, eliminates the technology that middle oils of boats and ships " three water " and organic-matter chemical product pollute
1) biochemical treatment process
The ballasting water yield that large ship carries is very big, and need carry the water ballast of boats and ships total displacement more than 30% when unloaded generally speaking could safe navigation.According to the difference of each navigational duty, have " dirty water ballast " above half in the water ballast at most.The principal pollutant of " dirty water ballast " are oils and organic chemical pollutant.These water ballasts during to the bank loading immediately removal but can not directly discharge again, carrying out biochemical aeration processing is reliable method, but because biochemical treatment intensity is too low, equipment is huge, can't aboard ship carry out, so generally be that the sewage work that is transported on the bank carries out biochemical treatment.Obviously, this economically, all be a white elephant on the timeliness for the shipowner.
2) profit gravitational separation process
Water-and-oil separator is a kind of Technology equipment that utilizes the very mature and reliable of gravity separation oils and oiliness Pollution by Chemicals thing.Its volume is little, energy consumption is low or do not have energy consumption, may carry aboard ship, for oil-containing (comprising oil in water emulsion) and bigger " three water " of oiliness chemical concentration, the water-and-oil separator of different structure is by adding being used alone or in combination of additional ways such as chemical agent, flocculation, sedimentation, layering, centrifugal and filtration, oleaginousness can be dropped to below the 15ppm water-and-oil separator of certain structures even can reach below the 5ppm.Water-and-oil separator is main force's equipment of current boats and ships oil-containing water dirt (giving up) water treatment.
But water-and-oil separator has a very big defective, and the processing power that is exactly it is less than normal, generally is no more than per hour 2 tons.This can do high-quality processing fully for the machine limber water of measuring less, concentration is big (general every 1000kW marine main engine power per hour produces 0.5 ton of machine limber water approximately), but for hundreds of even tens thousand of tons " dirty water ballast " easily, the processing power that then seems wretched insufficiency.
3) ozone method
Ozone has another name called three atomic oxygens, and because of the stink with similar fishy smell is gained the name, its molecular formula is O
3, be the isomer of oxygen.Ozone has been widely used in food as the safe and efficient sterilizing agent of a kind of gas or water since more than 100 years were found in the past, the processing of life and industrial sewage.
The nascent oxygen atom [O] that ozone discharges in water has extremely strong oxidation susceptibility.The redox electricity price position of ozone is 2.07V, is only second to fluorine (2.87V), is higher than chlorine (1.36V) and dioxide peroxide (1.5V).Ozone not only has intensive oxidation, Degradation to various organism, all known chemical organic pollutants can be decomposed into innoxious substance or form throw out, and can decolour effectively, deodorization, be a kind of effective water treatment method.
But the ozone in the water must reach certain high concentration and just can prove effective, and the solubleness of ozone in water is little, therefore, has any problem during with the sewage of the big flow of ozonize.
4) supersonic method
The sound frequency that people can hear is between 20Hz～20000Hz, and the sound wave that is higher than 20000Hz is called ultrasonic wave.The transmission of sound wave is according to the sinusoidal curve longitudinal propagation, and promptly a ripple positive (summit) ripple negative (peak valley) alternately transmits.When the negative acoustic wave energy acts in the liquid, can produce certain negative pressure to liquid, the liquid particle volume is increased, molecule gap strengthens in the liquid, forms various small cavitation bubbles, i.e. " cavitation cave "; And the acoustic wave energy of positive then can produce certain malleation to liquid particle when acting on liquid, make liquid volume be compressed and reduce, with previous in the liquid because the microvoid cave crushing that negative pressure forms.Each cavitation cave break can generate energy great shockwave, can make in the tiny area in moment produce the high temperature of several thousand degree, up to hundreds of the normal atmosphere and the local jet of several hundred kilometers speed per hour, this phenomenon is referred to as " cavitation effect ".
When ultrasonic cavitation took place in the aqueous solution, water molecules can directly produce [H] and [OH], these living radicals can with other substance reaction in the bubble.In addition, the temperature in bubble interfacial layer zone can be up to 2000K, and the water in bubble interfacial layer zone is in the very strong supercritical state of dissolving power, and therefore, pollutent is dissolved easily and help to take place oxidation and DeR.The product (for example generate carbonic acid gas and carbon black etc.) of organism after supersound process is with high temperature pyrolysis or burn similar.
Ultrasonic wave is more effective to the oils in disposing of sewage, and " cavitation effect " can make oil droplet be dispersed into droplet rapidly and emulsification, makes surface-area increase hundred times to several ten thousand times, thereby is easy to oxidation and degraded.
When supersound process water, the cavitation cave is many more in the unit time, and [H] and [OH] quantity that cavitation effect produces is many more, and the effect for the treatment of water is just good more; Simultaneously, because different chemical substance molecular groupings is experienced the susceptibility difference to different frequency ultransonic, make and be difficult to its molecular linkage be interrupted with a kind of ultrasonic wave of frequency, this just is unfavorable for that [H] and [OH] carries out oxidative degradation to it, is difficult to reach high-caliber effect, efficient when causing ultrasonication dirt (giving up) water.
5) high-voltage field
Under high-voltage electric field, water can produce has active hydroxyl radical free radical [OH] and nascent oxygen [O], the pollution substance in the oxidizing water rapidly.This is the technology that grows up a kind of sixties in last century, also is not called " hydroxyl radical free radical method " very accurately, because the conductivity degree of polluted water increases, high-voltage electric field is difficult for keeping and produces big electric current, so consuming electric power is higher.
2, kill the technology of middle hydrobiont of boats and ships " three water " and pathogenic agent
Current in the boats and ships shipping-trade, also be in development mostly at the treatment technology of hydrobiont in the water ballast and pathogenic agent, drop into still not having of commercialization utilization.These technique means mainly contain:
1) machinery/physics method
(1) filtration method
In the water ballast loading process, use medium filterings such as filtering net or film greater than or part be slightly less than the hydrobiont and the pathogenic agent of filter opening size.But filtration method is owing to be subjected to the restriction in filter media area and life-span, and can't avoid frequently changing contaminated filtration medium, so be difficult to a large amount of water ballasts of high speed processing.
(2) centrifugal separation
Centrifugal separation is a kind of effective ways of removing the macrobead aquatic organism.This method can efficiently be removed most of aquatic many cells animals and plants rapidly.This method is simple to operate, with low cost, but handle with sea water specific gravity near or when atomic little hydrobiont particulate of particle and pathogenic agent, effect is just relatively poor.
(3) dilution method
Dilution method is exactly that two set of tubes are installed on the ship simultaneously, a set of tubes in the local coastal waters water ballast of packing into continuously, the water ballast that another set of discharge of pipes strange land is come.Its purpose can be in the navigation process, constantly makes the seawater Continuous Flow cross ballast tank and makes it up to standard and save the time of berthing with the concentration of hydrobiont and pathogenic agent in the dilution water ballast.But dilution method has only played the concentration dilution effect, does not reduce the total amount of hydrobiont or organic pollutant, and is very unreasonable.Along with various countries the strictness of ballast water discharge management system being carried out in the world, dilution method has continued the prospect of employing.
(4) professional on the bank Sewage Plant is carried out method processing such as biochemistry
The water ballast that boats and ships will have external hydrobiont and a pathogenic agent is transported to shore water treatment plant to carry out method such as biochemistry and handles, ballast water treatment can be arrived than higher emission standard, but set up the restriction that sewage work obviously is subjected to several factors at the harbour, stop the time of sending water, the fund of building the water treatment plant etc. as harbor area and layout, boats and ships.
In addition, these have after the water ballast disembarkation of live body hydrobiont and pathogenic agent, because total amount is bigger, must stores in advance again and handle successively.Therefore external hydrobiont and pathogenic agent be before being killed, still inevitably can be in soil, water body, air by the danger of spreading voluntarily, approach such as infiltration, leakage bring external hydrobiont and pathogenic agent to invade for the discharging location.
(5) at boat deep-sea exchange water ballast
Under existing technical conditions, the approach of hydrobiont and pathogenic agent is that boats and ships are replaced water ballast in the high sea of contiguous port of destination with deep-sea water in International Maritime Organizaton (IMO) the agreement treatment of ballast water, is carried to the location, port of destination to avoid hydrobiont and pathogenic agent.2000, " marine site, vessel underway oceangoing ship deep-sea (depth of water is below 2000 meters, beyond 200 nautical miles on bank) replace the water ballast method " once advised adopting by Maritime Environment Protection Committee of International Maritime Organizaton (IMO).If adopt this method, the at anchor off-lying sea of one 200,000 tons oil tanker is replaced water ballast and is needed 24 hours approximately, and annual many expenditures tap into 2,000,000 dollars, and are costly.And with deep-sea exchange water ballast energy consumption height, operation long operational time, and can not kill and reduce the bilge settling that adheres to a large amount of microorganisms, these all are the significant deficiency of changing the ballasting water law at the deep-sea.Therefore, International Maritime Organizaton recognizes also and points out: " high sea exchange water ballast is a temporary transient measure, and from a long-term perspective, the best way is the large number of biological that aboard ship directly kills in the water ballast.”
(6) water ballast heating method
The water ballast heating method is that the heat that will send in boats and ships refrigerating apparatus or the marine engine work feeds setting-out cabin heating water ballast, in the hope of killing hydrobiont and pathogenic agent wherein.This method has potential practicality, but exist the heat treated time long, energy consumption big, ship structure transformation complexity, thermal stresses changes the boats and ships profile influence insoluble problems such as navigation safety and shortening hull structure life-span.And biology and pathogenic agent may quicken to multiply breeding on the contrary in the district of underheated cabin.
(7) supersonic method
People such as Germany biologist Schormann have proposed to adopt the method for ultrasonic wave kill microorganisms in the nineties in 20th century.Its principle is to utilize hyperacoustic " cavitation effect ", with similar with the effect of ultrasonication oils and organic pollutant.The thermal agitation of " cavitation effect ", extruding, shearing make the death that sustains damage of biology, microbial cell, and innoxious substance is dismembered in their corpse fragmentation; Simultaneously, the high temperature that heating produces in the cavitation cave also plays fatal killing effect to the cell of aquatic organism and pathogenic agent.In addition, free radical that " cavitation effect " produces and oxygenant also play the effect that unusual intensive is killed to the cell of aquatic organism and pathogenic agent, and this is a promising technology.But with the same with organic pollutant, exist efficiency-cost ratio desirable not to the utmost, and exist different hydrobionts, pathogenic agent to experience the different problem of susceptibility different frequency is hyperacoustic with ultrasonication oils.
(8) uv irradiation method
UV-light can effectively be killed multiple hydrobiont and pathogenic agent, but ultraviolet penetration power is relatively poor, can only kill the hydrobiont and the pathogenic agent that are near the thin layer pool ultraviolet light source in water.
(9) gamma ray method
The gamma ray of high penetrating power is a kind of powerful technological approaches of effectively killing hydrobiont and pathogenic agent, is handling the excellent results that the ship ballast water field has is worth expectation.But be subjected to the influence of high-power gamma ray generator spare manufacture level at present, be applied to efficiently handle ship ballast water and be still waiting time.
(10) electrophoretic method
Microorganism is in the electric field between the electrode, different types of microorganism can be in large quantities to self electrically different electrode move.By electric shock, these biologies can be killed.Electrophoretic method works to the tiny organism in the water ballast, but invalid as the ovum of bigger algae spore and fish, shrimp, crab or young etc. to uncharged particle.
(11) high-voltage field
Under the high-voltage electric field, hydroxyl radical free radical that water produced [OH] and nascent oxygen [O] can be killed hydrobiological ovum, spore and microorganism.Owing to can produce big electric current simultaneously, current consumption is bigger.This is the technology that grows up a kind of sixties in last century, also is not called " hydroxyl radical free radical method " very accurately.
2) chemical method
(1) hypochlorite or chlorine method
Hypochlorite is usually used in the cleaning of swimming-pool water sterilization and article surface.Be used to handle ship ballast water and can play the effect of killing hydrobiont and pathogenic agent rapidly.But when being to use the compound treatment sewage of chlorine or chlorine, can generate tri-chlorination alkane with organism and the hydrocarbon reaction in the sewage, be a kind of strong carcinogen, therefore limited hypochlorite and chlorine to containing the use of oils and organic concentration higher " three water ".
(2) hydrogen peroxide method
Hydrogen peroxide (H
2O
2) i.e. " hydrogen peroxide ", it can produce extremely strong hydroxyl radical free radical of oxidisability [OH] and nascent oxygen [O].At hydrobiont in the water ballast and pathogenic agent, hydrogen peroxide (H
2O
2) power of " touch promptly kill " arranged.But when hydrogen peroxide is used for the ship ballast water processing, need reach the concentration about 3%, unusual effect is just arranged, so cost be higher, limit the prospect of application.
(3) ozone method
Ozone is a kind of strong oxidizer, the redox electricity is situated between the position up to 2.07V, the nascent oxygen atom [O] that can produce, ozone can thoroughly be killed young ovum, the young, ripe body and various waterplant, algae of various hydrocoles etc., and bacterium, chlamydozoan, mycoplasma, virus also had the intensive killing action, and the corpse oxidative degradation of killed hydrobiont and pathogenic agent is become innoxious substance.And there is not the secondary pollution problem in the effect of killing hydrobiont and pathogenic agent in using on hydroxyl radical free radical [OH].But solubleness and the dissolution rate of ozone in water is not high, and the concentration of ozone in water can't improve, so the efficient of equipment is not high enough, has improved processing cost.
(4) aerobic physical law
Good oxygen species such as S-WAT, sulfurous gas, sodium metabisulphite join in the water ballast tank of sealing ballast tank, can consume the oxygen in the water ballast, cause anaerobic environment, are a kind of methods of killing hydrobiont and pathogenic agent.Need the long time but suffocate in this way and kill hydrobiont and microorganism, and not obvious to the effect of anaerobion and some hydrobiological ovum that is in hibernation or spore.
By above technical background introduction with analyze and can find: current also do not have a kind of single boats and ships " three water " treatment technology to satisfy following 4 requirements fully simultaneously: 1. can eliminate oils, organic chemical pollutant in " three water " of boats and ships, 2. can thoroughly kill hydrobiont and pathogenic agent in the water again, 3. also to 4. rely on high-intensity processing power with starting operation quarter (not in shore) at any time, can handle the very large boats and ships of quantity " three water " at short notice, and make it up to standard.
Summary of the invention
The objective of the invention is to overcome deficiency of the prior art, provide a kind of and can rapidly and efficiently handle the sewage that contains oils and multiple organic chemical pollutant and hydrobiont and pathogenic agent, comprise boats and ships " three water ", the waste disposal plant of the discharging that makes it to reach relevant or the standard of use.
The technical scheme that the present invention solves its technical problem employing is as follows:
The invention provides a kind of waste disposal plant that utilizes the frequency mixing ultrasonic technology, comprise the mixing reactor that is provided with water-in and water outlet, mixing reactor is provided with the ultrasonic transducer of at least two different operating frequencies, when above-mentioned ultrasonic transducer moved simultaneously, the operating frequency difference between the ultrasonic transducer of any two different frequencies was 16～800kHz.
As a kind of improvement, the outside of described ultrasonic transducer is coated with one deck pugging.
As a kind of improvement, the top of described mixing reactor is provided with a gas release valve.
As a kind of improvement, described ultrasonic transducer connects the controller that is used for regulating frequency and intensity.
As a kind of improvement, described mixing reactor inside is provided with at least one interceptor.
As a kind of improvement, described ultrasonic transducer is installed in the chamber of the outer or mixing reactor of the wall of mixing reactor or the wall that is installed on mixing reactor respectively outward and in the chamber of mixing reactor simultaneously.
Compare with background technology, the useful effect that the present invention has is:
Use the device among the present invention to handle the boats and ships " three water " that contain oils and multiple organic chemical pollutant and hydrobiont and pathogenic agent, can simultaneously satisfy following 4 requirements fully: 1. can eliminate oils, organic chemical pollutant in " three water " of boats and ships, 2. can kill hydrobiont and pathogenic agent in the water again, 3. also to 4. rely on high-intensity processing power with starting operation quarter (not in shore) at any time, can handle the very large boats and ships of quantity " three water " at short notice, and make it up to standard.Present technique can be applicable to make movable type or place land to fix or self-propelled rapidly and efficiently " three water " treatment unit with boats and ships.The present invention is primarily aimed at boats and ships " three water ", equally also goes for other similar sewage.
Description of drawings
Fig. 1 is a dual transducers mixing synoptic diagram among the present invention;
Fig. 2 is the longitudinal sectional view of mixing reactor in the embodiment of the invention 1;
Fig. 3 is the transverse sectional view of mixing reactor in the embodiment of the invention 1;
Fig. 4 is an apparatus structure synoptic diagram in the embodiment of the invention 1.
Embodiment
The present invention is further illustrated below in conjunction with specific embodiment and Fig. 1～4.
The principle of frequency mixing ultrasonic technology: when " three water " of boats and ships is subjected to two or more ultrasonic frequency irradiations, the ultrasonic wave of various different frequencies can be separately to the water generates cavitation effect, and, can produce frequency complicated and changeable and produce more cavitation effect by approach such as frequency multiplication, frequency division ripples when the ultrasonic wave of multiple frequency is mixed; Moreover the frequency mixing ultrasonic ripple of two or more frequencies can reduce the standing wave that the single-frequency ultrasonic wave produces, and (see figure 1) is reduced in the cavitation cave that standing wave can cause; In addition, it is different that different chemical substances and hydrobiont, pathogenic agent are experienced susceptibility to different frequency ultrasonic, and the frequency that frequency mixing ultrasonic is complicated and changeable is more far better than the ultrasonic effect that applies certain single-frequency separately.
Therefore, under two or more ultrasonic wave effects, the oxidative degradation speed of oils and Organic pollutants is accelerated greatly in the pending water, has also promoted killing of hydrobiont and pathogenic agent simultaneously consumingly.
The mixing reactor structure of using the frequency mixing ultrasonic technology is shown in Fig. 2,3:
The ultrasonic transducer of per two same frequencys as one group, is installed in the outside of box mixing reactor 1 wall with an angle of 90 degrees, is respectively ultrasonic transducer 2 and ultrasonic transducer 3, shown in Fig. 2,3.Interceptor be laid staggeredly in the mixing reactor to strengthen wastewater treatment efficiency.Pending sewage is full of whole mixing reactor 1, after the ultrasonic wave sound field that the ultrasonic wave of its two kinds of different frequencies of flowing through is formed, promptly carries out processing.
The waste disposal plant that utilizes the frequency mixing ultrasonic technology in the present embodiment as shown in Figure 4.
Outer two the ultrasonic transducer branches of installing of the wall of mixing reactor 1 are connected to the controller 4 of a control ultrasonic frequency, and controller 4 can be set parameters such as transverter operating frequency, working hour. Ultrasonic transducer 2,3 outsides also can coat one deck pugging, the noise that produces when working with isolated transverter.The top of mixing reactor 1 is provided with a gas release valve 5, as required the exhaust gas emission that produces in the sewage treatment process is gone out.A thermometer 6 also is installed on the mixing reactor 1, conveniently sewage treatment process is monitored.
In the present embodiment:
Specimen is prepared voluntarily: water sample is taken from trestle starting point place, petrol wharf, logical sequence port, Ningbo of Zhejiang north (between 1.5 to 2 meters of the sampling depth of waters), and adds 0 in 200L water
#Diesel oil 40g, and violent stirring have promptly increased the oleaginousness of 200mg/L;
24kHz and 40kHz transverter are produced by Hangzhou Rayleigh ultrasonic device company;
100kHz and 850kHz transverter are produced by HIT;
Oil analysis instrument in the BA-200 type water that water quality monitoring system employing American I Si Corporation produces;
The TEMPO microorganism detection by quantitative instrument that biological detection adopts French Mei Liai company to produce, the bacterium colony number (cfu, colony forming units) of analytical unit volume water after cultivating;
Except that water sample chemical examination and biological detection, whole test was finished in 2 hours.
Hyperacoustic total power is 3W/cm during experiment
2, frequency of ultrasonic control is realized by controller 4.
24kHz, 40kHz and mixing 24kHz+40kHz power ratio are that 1: 2 ultrasonic wave is treated treating water and shone, then the changing conditions of water quality relatively.
24kHz, 100kHz and mixing 24kHz+100kHz power ratio are that 1: 2 ultrasonic wave is treated treating water and shone, then the changing conditions of water quality relatively.
24kHz, 824kHz and mixing 24kHz+824kHz power ratio are that 1: 2 ultrasonic wave is treated treating water and shone, then the changing conditions of water quality relatively.
Frequency mixing ultrasonic method example test-results sees Table 1～3 respectively:
Table 1:
| Water quality before handling | Handle back water quality (ultrasonic radiation power 3W/cm 2, discharge 1L/min) | ||||
| Original water sample | The 24kHz ultrasonic radiation | The 40kHz ultrasonic radiation | The frequency mixing ultrasonic radiation in 1: 2 of 24kHz+40kHz power | ||
| Oleaginousness, mg/L | 230 | 120 | 67 | 34 | |
| Total plate count (cfu/mL) | 2.7×10 3 | 7 | 5 | 4 | |
| Intestinal bacteria (cfu/L) | 8.1×10 5 | ～0 | ～0 | ～0 | |
| The water sample outward appearance | Oil slick | Naked eyes as seen | Naked eyes are invisible | Naked eyes are invisible | Naked eyes are invisible |
| Color | The light green muddiness | Colourless shallow muddiness | Colourless little muddiness | Transparent limpid | |
| Smell | The rotten seawater flavor of light raw meat | The rotten seawater flavor of faint raw meat | Odorlessness | Odorlessness | |
Table 2:
| Water quality before handling | Handle back water quality (ultrasonic radiation power 0.1～3W/cm 2, discharge 1L/min) | ||||
| Original water sample | The 24kHz ultrasonic radiation | The 100kHz ultrasonic radiation | The frequency mixing ultrasonic radiation in 1: 2 of 24kHz+100kHz power | ||
| Oleaginousness, mg/L | 230 | 120 | 51 | 24 | |
| Total plate count (cfu/mL) | 2.7×10 3 | 7 | 5 | 4 | |
| Intestinal bacteria (cfu/L) | 8.1×10 5 | ～0 | ～0 | ～0 | |
| The water sample outward appearance | Oil slick | Naked eyes as seen | Naked eyes are invisible | Naked eyes are invisible | Naked eyes are invisible |
| Color | The light green muddiness | Colourless shallow muddiness | Colourless little muddiness | Transparent limpid | |
| Smell | The rotten seawater flavor of light raw meat | The rotten seawater flavor of faint raw meat | Odorlessness | Odorlessness | |
Table 3:
| Water quality before handling | Handle back water quality (ultrasonic radiation total power 3W/cm 2, discharge 1L/min) | ||||
| Original water sample | The 24kHz ultrasonic radiation | The 824kHz ultrasonic radiation | The frequency mixing ultrasonic radiation in 1: 2 of 24kHz+824kHz power | ||
| Oleaginousness, mg/L | 230 | 120 | 37 | 18 | |
| Total plate count (cfu/mL) | 2.7×10 3 | 7 | 3 | 2 | |
| Intestinal bacteria (cfu/L) | 8.1×10 5 | ～0 | ～0 | ～0 | |
| The water sample outward appearance | Oil slick | Naked eyes as seen | Naked eyes are invisible | Naked eyes are invisible | Naked eyes are invisible |
| Color | The light green muddiness | Colourless shallow muddiness | Colourless little muddiness | Transparent limpid | |
| Smell | The rotten seawater flavor of light raw meat | The rotten seawater flavor of faint raw meat | Odorlessness | Odorlessness | |
As can be seen, the frequency mixing ultrasonic ripple is in the process of disposing of sewage, and is with oils and organic pollutant oxidative degradation and kill hydrobiont and the effect of pathogenic agent, better than unifrequent ultrasonic wave from above-mentioned data.
Claims (6)
1, a kind of waste disposal plant that utilizes the frequency mixing ultrasonic technology, comprise the mixing reactor that is provided with water-in and water outlet, it is characterized in that, mixing reactor is provided with the ultrasonic transducer of at least two different operating frequencies, when above-mentioned ultrasonic transducer moved simultaneously, the operating frequency difference between the ultrasonic transducer of any two different frequencies was 16～800kHz.
2, waste disposal plant according to claim 1 is characterized in that, the outside of described ultrasonic transducer is coated with one deck pugging.
3, waste disposal plant according to claim 1 is characterized in that, the top of described mixing reactor is provided with a gas release valve.
4, waste disposal plant according to claim 1 is characterized in that, described ultrasonic transducer connects the controller that is used for regulating frequency and intensity.
5, waste disposal plant according to claim 1 is characterized in that, described mixing reactor inside is provided with at least one interceptor.
6, waste disposal plant according to claim 1 is characterized in that, described ultrasonic transducer is installed in the chamber of the outer or mixing reactor of the wall of mixing reactor or the wall that is installed on mixing reactor respectively outward and in the chamber of mixing reactor simultaneously.
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| CN101817572A (en) * | 2010-04-28 | 2010-09-01 | 南京工业大学 | Ultrasonic sterilizing and algae removing method for industrial circulating cooling water system |
| CN102372335A (en) * | 2010-08-16 | 2012-03-14 | 无锡天夏超声设备有限公司 | Ultrasonic wave acoustic energy purifier |
| CN102372335B (en) * | 2010-08-16 | 2013-10-23 | 无锡天夏超声设备有限公司 | Ultrasonic wave acoustic energy purifier |
| CN102485658A (en) * | 2010-12-02 | 2012-06-06 | 易乾东 | Magnetic resonance-based water treatment device |
| CN102485658B (en) * | 2010-12-02 | 2013-09-04 | 易乾东 | Magnetic resonance-based water treatment device |
| CN102167421A (en) * | 2011-03-04 | 2011-08-31 | 广州市碧滔环保科技有限公司 | Frequency conversion direct current pulse ultrasonic wave water treatment system |
| CN102167421B (en) * | 2011-03-04 | 2013-05-01 | 广州市碧滔环保科技有限公司 | Frequency conversion direct current pulse ultrasonic wave water treatment system |
| CN104944515A (en) * | 2015-07-09 | 2015-09-30 | 杨浩 | Efficient continuous frequency mixing ultrasonic cell disruption treatment device |
| CN104944515B (en) * | 2015-07-09 | 2017-07-14 | 杨浩 | A kind of highly effective continuous frequency mixing ultrasonic breaking-wall cell processing unit |
| CN106542605A (en) * | 2015-09-18 | 2017-03-29 | 中国石油化工股份有限公司 | Laser and ultrasonication oil field waste petrochina kind equipment |
| CN105776417A (en) * | 2016-06-01 | 2016-07-20 | 北京中科奥倍超声波技术研究院 | Ultrasonic sewage treatment method implemented through frequency mixing in combination with standing waves |
| CN106475400A (en) * | 2016-10-21 | 2017-03-08 | 周建军 | Comprehensive garbage processing equipment |
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