CN105152430A - Marine plankton inactivation device - Google Patents
Marine plankton inactivation device Download PDFInfo
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- CN105152430A CN105152430A CN201510588043.0A CN201510588043A CN105152430A CN 105152430 A CN105152430 A CN 105152430A CN 201510588043 A CN201510588043 A CN 201510588043A CN 105152430 A CN105152430 A CN 105152430A
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- 230000005855 radiation Effects 0.000 claims abstract description 31
- 230000000415 inactivating effect Effects 0.000 claims abstract description 18
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- 239000010865 sewage Substances 0.000 claims abstract description 9
- 230000009849 deactivation Effects 0.000 claims description 45
- 238000001914 filtration Methods 0.000 claims description 43
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- Physical Water Treatments (AREA)
Abstract
The invention discloses a marine plankton inactivation device, relates to the technical field of water treatment, and aims to solve the technical problem to improve inactivation efficiency. The device comprises a filter unit and an acoustic-optic inactivation unit, wherein the filter unit comprises a filter container and a high-pressure backwash pump, a tubular filter screen is arranged in the filter container, a rotatable sewage suction pipe is arranged in the filter screen, a rotatable high-pressure backwash frame is arranged at the outer side of the filter screen, and a cleaning motor for driving the sewage suction pipe and the high-pressure backwash frame to rotate is arranged on the filter container; a sewage suction nozzle is fixed on the sewage suction pipe, high-pressure backwash spray nozzles are fixed on the high-pressure backwash frame, and each high-pressure backwash spray nozzle is connected to a water outlet of the high-pressure backwash pump by virtue of a pipe fitting; and the acoustic-optic inactivation unit comprises an inactivation container, and an ultrasonic radiation rod and an ultraviolet lamp which are arranged in the inactivation container respectively, and a water inlet of the inactivation container is connected with a water outlet of the filter container. The device provided by the invention is suitable for inactivating marine planktons in seawater.
Description
Technical field
The present invention relates to water technology, particularly relate to a kind of technology of marine plankton inactivating device.
Background technology
Along with the fast development of modern chemical industry, agriculture production, increasing of coastland population, a large amount of industrial and agricultural wastewater and sanitary sewage enter ocean, wherein quite a few unprocessedly just directly enters ocean, cause coastal waters, bay Eutrophic Extent is on the rise, planktonic organism amount reproduction, thus cause red tide phenomenon; In addition, along with the high speed development of International Maritime Industry, the discharge of boats and ships seawater causes the introducing of external harmful plankton species, exacerbates the deterioration of marine ecology chain and environment.International Maritime Organizaton's research finds to have the organisms such as 7000 planktonic organisms every day at least with boats and ships oceangoing voyage to other country strange land.It can thus be appreciated that various countries' species are all carrying out mutual invasion in various degree every day.New species invade new harbour environment, once there is no natural enemy, will amount reproduction, and then cause regional ocean water quality deterioration.The planktonic organism invasion that boats and ships bring has obtained the extensive concern of various countries, and be it is believed that it is that four of harm ocean one of is endangered greatly.
In order to more effectively kill harmful water planktonic organism and pathogenic agent in the closed marine site such as harbour, coastal waters, prevent regional seawater quality from worsening, the marine plankton inactivating device that sea environment-friendly industry urgent need is a kind of fast, efficient, reliable, treatment capacity is especially big.Planktonic organism for water body in large is administered and the technology that prevents external unwanted aquatic organism, pathogenic agent from invade and equipping accordingly and facility, must following characteristics be possessed: 1) deactivation speed is fast: otherwise, in water body in large, when the water after process enters in body water again, what such as add is biocide, will be weakened sterilizing ability very soon by diluting, and adds the microorganism do not killed in a large number, understand large-scale breeding very soon, regulation effect is very poor; 2) kill efficiency is high: must meet sea environment-friendly seawater discharge standard in the industry; 3) secondary harm can not be produced to ecotope; 4) processing power is large: water body in large is as the eutrophication problem at harbour, and the processing power of single device is one of key factor, general requirement unit processing power hundreds of ton/hour ~ a few kiloton/hour.
The Treatment process system of existing body eutrophication and red tide, and planktonic organism inactivation treatment technical system, mainly contain electrolysis and produce active substance sterilising technology, ultraviolet sterilization technology.
Electrolysis produces active substance sterilising technology and first adds salt, then produces hypochlorous acid sterilization by electrolysis.Existing patent comprises Chinese Patent Application No. 200610042972.2 disclosed " a kind of two-functional electrolytic generator ", disclosed 200510111126.7 " a kind of small-sized disinfected water generator and using method thereof ", disclosed 200520077629.2 " Portable water source sterilizer ", disclosed 200510023766.2 " preparation method of high concentration hypochlorous acid disinfecting liquid ", chlorinated lime is added than directly, throw in dioxide peroxide, the schemes such as hydrogen peroxide are convenient, save cost, but the salinity of handled water body can be increased, especially for big area lake, the sterilization of the eutrophication water at harbour, algae removal process, under long-term operation condition, the measure of all interpolation medicaments and increase water salinity, all unacceptable.There are two kinds of defects in this method and apparatus: 1) has higher requirements to water salinity.Because each marine site salinity has bigger difference, also just cause specific conductivity to have bigger difference, and then cause electrolysis voltage to change too greatly.2) there is scale formation in negative electrode in low salinity water system, and cause the resistance between negative electrode and water body sharply to increase, and affects electrolytic efficiency, if need to ensure current constant, then overall electrolysis voltage sharply raises, and causes system normally to run.
Ultraviolet sterilization technology is a kind of traditional efficient disinfecting technical.At wavelength 240-260nm place, especially there is good killing action at the UV-C uv-radiation at 253.7nm place to microorganism and pathogenic agent.Uv-radiation can make the hereditary material DNA of organism or RNA sustain damage, and morphs, and then the synthesis of the enzyme affected in biomass cells and protein, destroys its normal metabolic activity, causes necrocytosis.The sea filter device with mighty ultraviolet disinfection being applied to breeding seawater process disclosed in Chinese patent 200520087812; Ultra-violet sterilization and DC electrolysis combine by US Patent No. 5738780, are applied to seawater inactivation treatment.On address existing ultraviolet sterilization technology cannot thoroughly realize on-line cleaning germicidal tube surface produce seawater hard scale, there is deactivation efficiency low, easily produce chemical by-product, filtering unit easily blocks, the major defects such as the process water yield is little, and the treatment time is long, and effluent quality is unstable.
Summary of the invention
For the defect existed in above-mentioned prior art, technical problem to be solved by this invention is to provide that a kind of deactivation efficiency is high, inactivating efficacy good, and the treatment time is short, the marine plankton inactivating device of stable effluent quality.
In order to solve the problems of the technologies described above, a kind of marine plankton inactivating device provided by the present invention, is characterized in that: comprise filtering unit, acousto-optic deactivation unit;
Described filtering unit comprises filtration vessel, high pressure backwashing pump, and described filtration vessel offers water-in, water outlet, and the water-in of high pressure backwashing pump receives the water outlet of filtration vessel;
Described filtration vessel is built-in with the filter screen of tubular, the water-in of filtration vessel, water outlet are spaced from each other by described filter screen, rotating dirt sucking tube is provided with in filter screen, the outside of filter screen is provided with rotating high pressure backwash frame, filtration vessel is equipped with the cleaning motor for ordering about dirt sucking tube and the rotation of high pressure backwash frame;
Described dirt sucking tube is fixed with at least one pollution-absorbing nozzle be communicated with its tube chamber, described high pressure backwash frame is fixed with at least one high pressure backwash nozzle, each high pressure backwash nozzle receives the water outlet of high pressure backwashing pump by pipe fitting, each pollution-absorbing nozzle and each high pressure backwash nozzle one_to_one corresponding, can respectively inside and outside filter screen both sides be synchronized with the movement;
Have a blowdown chamber be directly communicated with dirt sucking tube tube chamber in described filtration vessel, this blowdown chamber offers sewage draining exit;
Described acousto-optic deactivation unit comprises deactivation container, Ultrasonic Radiation rod, and many ultraviolet lamp tubes, described deactivation container offers water-in, water outlet, the water-in of deactivation container receives the water outlet of filtration vessel, described Ultrasonic Radiation rod and each ultraviolet lamp tube are all fixed in deactivation container, Ultrasonic Radiation rod enters flow path direction perpendicular to deactivation container water-in, and Ultrasonic Radiation rod is parallel to each other with each ultraviolet lamp tube, each ultraviolet lamp tube lays lamp tube array circlewise, Ultrasonic Radiation rod is laid in the ring heart of lamp tube array, the ultrasonic generator for driving Ultrasonic Radiation rod deactivation container is equipped with.
Further, the water-in of described filtration vessel is equipped with pressure difference switch, and the electrical signal of pressure difference switch receives the control end of high pressure backwashing pump and cleaning motor.
Further, described deactivation container content has light intensity sensor, temperature sensor, liquid level sensor.
Marine plankton inactivating device provided by the invention, adopt high pressure backwash, secondary filter technology, under high opacity seawater operating mode, ensure that 40 micron order essence filter screens used not easily block, the filtration water yield is large, separation efficiency is high, any chemical substance is not added in inactivation process, ultrasonic field and ultraviolet light field coupling seawater flow field is only adopted to realize planktonic organism deactivation, sound field, light field, flow field THM coupling effect makes seawater transmittance increase, Flow Field Distribution is more even, germicidal tube non flouling behaviour, and then make inactivating efficacy more stable, reliably, there is deactivation efficiency high, inactivating efficacy is good, and the treatment time is short, the feature of stable effluent quality.
Accompanying drawing explanation
Fig. 1 is the stereographic map of the marine plankton inactivating device of the embodiment of the present invention;
Fig. 2 is the structural representation of the filtering unit in the marine plankton inactivating device of the embodiment of the present invention;
Fig. 3 is that the master of acousto-optic deactivation unit in the marine plankton inactivating device of the embodiment of the present invention looks cut away view;
Fig. 4 is the side-looking partial cross sectional views of the acousto-optic deactivation unit in the marine plankton inactivating device of the embodiment of the present invention.
Embodiment
Illustrate below in conjunction with accompanying drawing and embodiments of the invention are described in further detail; but the present embodiment is not limited to the present invention; every employing analog structure of the present invention and similar change thereof, all should list protection scope of the present invention in, the pause mark in the present invention all represent and relation.
As Figure 1-Figure 4, a kind of marine plankton inactivating device that the embodiment of the present invention provides, is characterized in that: comprise filtering unit, acousto-optic deactivation unit;
Described filtering unit comprises filtration vessel 1, high pressure backwashing pump 2, and described filtration vessel 1 offers water-in 11, water outlet 12, and the water-in of high pressure backwashing pump 2 receives the water outlet 12 of filtration vessel;
Described filtration vessel 1 is built-in with the filter screen 13 of tubular, filtering accuracy is 40 microns, the water-in 11 of filtration vessel, water outlet 12 are spaced from each other by described filter screen 13, rotating dirt sucking tube 14 is provided with in filter screen 13, the outside of filter screen 13 is provided with rotating high pressure backwash frame 15, filtration vessel is equipped with the cleaning motor 3 for ordering about dirt sucking tube 14 and the rotation of high pressure backwash frame 15;
Described dirt sucking tube 14 is fixed with at least one pollution-absorbing nozzle 141 be communicated with its tube chamber, described high pressure backwash frame 15 is fixed with at least one high pressure backwash nozzle 151, each high pressure backwash nozzle 151 receives the water outlet of high pressure backwashing pump 2 by pipe fitting, each pollution-absorbing nozzle and each high pressure backwash nozzle one_to_one corresponding, can respectively inside and outside filter screen both sides be synchronized with the movement;
The water-in of described filtration vessel is equipped with pressure difference switch 16, and the electrical signal of pressure difference switch 16 receives the control end of high pressure backwashing pump 2 and cleaning motor 3;
Have a blowdown chamber be directly communicated with dirt sucking tube tube chamber in described filtration vessel 1, this blowdown chamber offers sewage draining exit 17;
Described acousto-optic deactivation unit comprises deactivation container 4, Ultrasonic Radiation rod 43, and many ultraviolet lamp tubes 44, described deactivation container offers water-in 41, water outlet 42, the water-in of deactivation container receives the water outlet of filtration vessel, described Ultrasonic Radiation rod 43 and each ultraviolet lamp tube 44 are all fixed in deactivation container, Ultrasonic Radiation rod 43 enters flow path direction perpendicular to deactivation container water-in 41, and Ultrasonic Radiation rod 43 is parallel to each other with each ultraviolet lamp tube 44, each ultraviolet lamp tube 44 lays lamp tube array circlewise, Ultrasonic Radiation rod 43 is laid in the ring heart of lamp tube array, the ultrasonic generator 45 for driving Ultrasonic Radiation rod 43 deactivation container is equipped with, deactivation container content has light intensity sensor, temperature sensor, liquid level sensor.
In the embodiment of the present invention, the Net long wave radiation optical wavelength of described ultraviolet lamp tube is 220 ~ 280nm, and the radial radiation angle of described Ultrasonic Radiation rod is 360 degree, and radiation frequency is 22KHz, can ensure ultrasonicly to carry out comprehensive cleaning to germicidal lamp sleeve surface.
The embodiment of the present invention is applicable to deactivation marine plankton, and be specially adapted to process harbour and boats and ships produced pollution seawater, its use-pattern is as follows:
Pending seawater flows into from the water-in of filtration vessel 1, after the planktonic organism of filter screen 13 filtering more than 40 microns after filtration in container and impurity, enter deactivation container 4 again, in deactivation container 4, extra large hydroplankton can be carried out cavitation by the light wave of 300 ~ 350mj/c ㎡ sterilization dose that the 22KHz ultrasonic coupling ultraviolet lamp tube 44 that Ultrasonic Radiation rod 43 produces produces, mixing, cracking, cohesion, the comprehensive treating processs such as deactivation, thus kill the planktonic organism (comprising bacterium) of in seawater less than 40 microns, seawater through inactivation treatment is discharged from the water outlet 42 of deactivation container, pass through light intensity sensor, temperature sensor, liquid level sensor can ultraviolet light intensity in Real-Time Monitoring deactivation container, temperature, liquid level, so that control whole plant running,
Along with continuing of brine disposal, in seawater, various pollutent can cause filtration channel blocked at filter screen build-up inside, the water-in pressure of filtration vessel 1 is increased gradually, when pressure difference switch 16 detects that pressure reduction reaches 0.5bar, pressure difference switch 16 exports control signal to high pressure backwashing pump 2 and cleaning motor 3, cleaning motor 3 is made to drive dirt sucking tube 14 and high pressure backwash frame 15 to rotate, each pollution-absorbing nozzle 141 and each high pressure backwash nozzle 151 both sides inside and outside filter screen are done simultaneously rotate around filter screen, high pressure backwashing pump 2 also draws water also pumping to each high pressure backwash nozzle 151 from the water outlet of filtration vessel 1 simultaneously, utilize the current counterflush filter screen that high pressure backwash nozzle 151 sprays, impurity on filter screen can be peeled off rapidly under the dual function of impacting with high pressure and natural pressure reduction, and then drawn by pollution-absorbing nozzle 141 easily, and deliver to blowdown chamber by dirt sucking tube, discharged by sewage draining exit 17.
The wavelength that the embodiment of the present invention mainly utilizes ultraviolet lamp tube to send is the nucleic acid (RAN or DNA) of the light wave destroy microorganisms of 220 ~ 280nm, ultraviolet lamp tube generally needs to be placed in quartz socket tube and just can be applicable to water body deactivation, and temperatures as high hundreds of extremely thousands of degree during fluorescent tube startup work, containing a large amount of calcium ions and magnesium ions in seawater, be easy to make ultraviolet lamp tube surface form hard scale under the effect of high temperature, the general O type cushion rubber that leans on does not clean, the Ultrasonic Radiation rod that the embodiment of the present invention adopts can produce stronger cavitation effect, activating effect, shearing effect, to draw up effect, use ultrasonic wave strong sound field process fluid, allowing in fluid becomes dirty material under ultrasonic field effect, there is a series of change in its physical aspect and chemical property, make it dispersion, pulverize, loose, get loose and not easily adhere to tube wall formation incrustation, reach the object to ultraviolet lamp tube antiscaling, descaling like this, Ultrasonic Radiation rod is arranged on the ring heart of ultraviolet lamp tube array, can ensure that ultrasonic radiation carries out comprehensive on-line cleaning to ultraviolet lamp tube surface smut, deactivation container inner wall non flouling behaviour under the cleanup action of simultaneously Ultrasonic Radiation rod, sustainable maintenance inwall has very high mirror-finishing, and then improve ultraviolet light reflectance and utilization ratio, there is the effect of radiation in opposite directions diametrically in Ultrasonic Radiation rod and ultraviolet lamp tube, and then make ultrasonic field and germicidal lamp light field produce coupling diametrically, the radiation field of this Radial Coupling is formed again with the water flow field laterally entering deactivation unit and is coupled, thus achieve sound field, light field, three, flow field efficient coupling, thus to water body, there is stronger radial cavitation, mixing, splitting action, can ensure that current and planktonic organism wherein and impurity are mixed fully in deactivation unit, cracking, simultaneously under the radiation effect of high intensity ultraviolet sterilization, planktonic organism " is hidden oneself " nowhere in deactivation container, is finally thoroughly killed, and then ensure stable effluent quality.
The embodiment of the present invention is added planktonic organism and is carried out inactivation test under different salinity seawater, and result meets International Emissions standard: in the seawater of 1) every cubic metre of discharge, the viable biological of minimum size >=50 μm is less than 10; 2) in the seawater discharged minimum size <50 μm but the every mL of viable biological of >=10 μm is less than 10; 3) the poisonous vibrio cholerae (O1 and O139) in every 100mL seawater must be less than 1CFU; 4) intestinal bacteria in every 100mL seawater must be less than 250CFU; 5) enterococcus bacteria in every 100mL seawater must be less than 100CFU.
Claims (3)
1. a marine plankton inactivating device, is characterized in that: comprise filtering unit, acousto-optic deactivation unit;
Described filtering unit comprises filtration vessel, high pressure backwashing pump, and described filtration vessel offers water-in, water outlet, and the water-in of high pressure backwashing pump receives the water outlet of filtration vessel;
Described filtration vessel is built-in with the filter screen of tubular, the water-in of filtration vessel, water outlet are spaced from each other by described filter screen, rotating dirt sucking tube is provided with in filter screen, the outside of filter screen is provided with rotating high pressure backwash frame, filtration vessel is equipped with the cleaning motor for ordering about dirt sucking tube and the rotation of high pressure backwash frame;
Described dirt sucking tube is fixed with at least one pollution-absorbing nozzle be communicated with its tube chamber, described high pressure backwash frame is fixed with at least one high pressure backwash nozzle, each high pressure backwash nozzle receives the water outlet of high pressure backwashing pump by pipe fitting;
Have a blowdown chamber be directly communicated with dirt sucking tube tube chamber in described filtration vessel, this blowdown chamber offers sewage draining exit;
Described acousto-optic deactivation unit comprises deactivation container, Ultrasonic Radiation rod, and many ultraviolet lamp tubes, described deactivation container offers water-in, water outlet, the water-in of deactivation container receives the water outlet of filtration vessel, described Ultrasonic Radiation rod and each ultraviolet lamp tube are all fixed in deactivation container, Ultrasonic Radiation rod enters flow path direction perpendicular to deactivation container water-in, and Ultrasonic Radiation rod is parallel to each other with each ultraviolet lamp tube, each ultraviolet lamp tube lays lamp tube array circlewise, Ultrasonic Radiation rod is laid in the ring heart of lamp tube array, the ultrasonic generator for driving Ultrasonic Radiation rod deactivation container is equipped with.
2. marine plankton inactivating device according to claim 1, is characterized in that: the water-in of described filtration vessel is equipped with pressure difference switch, the electrical signal of pressure difference switch receives the control end of high pressure backwashing pump and cleaning motor.
3. marine plankton inactivating device according to claim 1, is characterized in that: described deactivation container content has light intensity sensor, temperature sensor, liquid level sensor.
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| CN201510588043.0A CN105152430A (en) | 2015-09-16 | 2015-09-16 | Marine plankton inactivation device |
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| CN201510588043.0A CN105152430A (en) | 2015-09-16 | 2015-09-16 | Marine plankton inactivation device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108079633A (en) * | 2016-11-23 | 2018-05-29 | 科斯塔股份有限公司 | Horizontal type filter device |
| CN111285515A (en) * | 2020-02-28 | 2020-06-16 | 上海交通大学 | Ultraviolet and ultrasonic combined ship ballast water treatment method |
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| CN102101705A (en) * | 2010-12-31 | 2011-06-22 | 东莞市宇洁新材料有限公司 | A Ballast Water Treatment Equipment Based on Physical Means |
| CN203653371U (en) * | 2013-11-13 | 2014-06-18 | 江苏海豚船舶机械有限公司 | Ship ballast water treatment device |
| CN103908819A (en) * | 2013-11-13 | 2014-07-09 | 江苏海豚船舶机械有限公司 | Vertical type high pressure full-automatic backwashing filter |
| CN204502556U (en) * | 2015-03-20 | 2015-07-29 | 陕西靖昇机械设备工程有限公司 | A kind of differential pressure filtering machine structure |
| CN204939160U (en) * | 2015-09-16 | 2016-01-06 | 宜兴帕克德环保技术有限公司 | Marine plankton inactivating device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108079633A (en) * | 2016-11-23 | 2018-05-29 | 科斯塔股份有限公司 | Horizontal type filter device |
| CN111285515A (en) * | 2020-02-28 | 2020-06-16 | 上海交通大学 | Ultraviolet and ultrasonic combined ship ballast water treatment method |
| CN111285515B (en) * | 2020-02-28 | 2021-09-07 | 上海交通大学 | A kind of ultraviolet ultrasonic combined ship ballast water treatment method |
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