CN104016533A - Ship ballast water treating method - Google Patents
Ship ballast water treating method Download PDFInfo
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- CN104016533A CN104016533A CN201410242229.6A CN201410242229A CN104016533A CN 104016533 A CN104016533 A CN 104016533A CN 201410242229 A CN201410242229 A CN 201410242229A CN 104016533 A CN104016533 A CN 104016533A
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Abstract
The invention discloses a ship ballast water treating method which comprises the following steps: (1), filtering seawater by a filter; (2), carrying out ozone oxidization and sterilization; (3), carrying out ultrasonic-wave cavitation and sterilization; (4), carrying out ultraviolet sterilization; (5), conveying the water into a ballast bin as ballast water; (6), carrying out back-flushing with seawater for a filter after a ballasting process is ended; (7), treating according to the steps (2), (3) and (4) before the ballast water is exhausted; (8), exhausting the treated and qualified ballast water. According to the invention, synergistic effects of ozone oxidization and sterilization, ultrasonic-wave cavitation and sterilization and ultraviolet-light radiation sterilization are performed, equipment is small in size, low in energy consumption, high in treating efficiency and wide in range of application. Moreover, treatment scale can be flexibly regulated by increasing or reducing number of ozone generators, ultrasonic transducers, low-pressure mercury lamps, so that the treatment capacity can be 20m<3>/h-5000m<3>/h. Besides, organic pollutants in seawater can be degraded while microorganisms are killed, so that the water quality of the exhausted ballast water is improved.
Description
Technical field
The present invention relates to water treatment, relate in particular to a kind of cruising ballast water treatment process.
Background technology
Along with the fast development of global shipping economy, boats and ships are more and more, volume becomes larger and larger, and ship's speed is also more and more faster.Water ballast is the important guarantee of marine operation safety.According to estimates, annual nearly 12,000,000,000 tons of the water ballast that current global boats and ships carry, and along with the development of shipping-trade is still in cumulative year after year, be present in the biology of travelling around the world with ship in ballast water for ship every day over 4500 kinds, even through the voyage of several months, various bacteria, plant and animal still can survive in water ballast and settling thereof perhaps.Migrate caused biotic intrusion and the epidemic transmission etc. of biology in seagoing vessel water ballast in worldwide occur repeatedly to ocean environment and the mankind's infringement event, caused the extensive concern of international community, Global Environment Facility's tissue (Global Environment Facility is called for short GEF) confirms as one of four large threats of harm ocean.In February, 2004, in London IMO general headquarters, pass through < < ballast water for ship and sediment monitoring and management international convention > > (being called for short < < water ballast pact > >).The effective term of this pact is: add up to account for world's merchant ship tons gross and be no less than at least 30 state approvals of 35% and come into force after 1 year.After < < water ballast pact > > comes into force, boats and ships should have a " Ballast Management plan " and water ballast register through approval.The Ballast Management that the formulation of " Ballast Management plan " should be passed through with reference to IMO and formulation Ballast Management plan guide rule (G4 guide rule).The discharge of ballast water for ship should meet following standard stage by stage: water ballast displacement standard (D-1 standard) or water ballast standard of performance (D-2 standard).Although existing 36Ge signatory country, surpass the required number that comes into force at present, world fleet's per-cent of its representative only surpasses 29%, far fewer than required 35%.
Although < < water ballast pact > > not yet reaches effective term; but the existing many countries in the whole world, for the national water environment of protection, implement the emission control to ballast water for ship in advance by legislation.Majority state takes to control ballast water for ship displacement measure, and requires ships entered harbor must hold " the Ballast Management plan " through approval.The requirement in some countries or region is even higher than IMO existing standard.Take the U.S. as example, United States Coasts Guard (USCG), New York and California etc. are formulated discharge of ballast water rule separately, and wherein some discharge index is higher 100 times even 1000 times than the regulation of the regular D-2 standard of < < water ballast pact > >.
As can be seen here, only have the efficient apparatus for treating ship ballast water of installation, make to process water outlet and reach the desired emission standard of Port State, boats and ships just can be obtained " pass " that enters other country harbour.Ballast for cruising water technology mainly can be divided into following a few class at present:
(1) physical treatment process (processing as adopted heat, ultrasonic wave, ultraviolet ray, silver ions, magnetization etc.);
(2) mechanical treatment process (filtering, improve ship design etc.);
(3) method of chemical treatment (ozone, take out oxygen, chlorination processing etc.);
(4) biological treatment (as added carnivorous or parasitic organism to eliminate in water ballast).
But up to now, numerous studies confirm that, aforesaid method is existing problems more or less all, as there is the problem that power consumption is large, cost is high in the methods such as the heat of Physical, ultrasonic wave, silver ions, magnetization, traditional UV method exist kill algae difficulty, sterilizing not thoroughly, the problem such as poor processing effect; There is the great number of issues such as equipment volume is large, boats and ships installation difficulty, equipment running cost height in mechanical process; Chemical method exists the chemical using or reaction generates seawater to be caused to the problem of secondary pollution; There is the problems such as long-term potential source biomolecule harm, poor controllability in biological process.Therefore, without any above-mentioned single method, can directly make the processing of water ballast meet the requirement of International Maritime Organizaton, that is: safe, reliable and effective, environment allow and expense reasonable.Therefore, above-mentioned existing various technology are optimized to integration, redevelopment and adaptability innovation, the novel method that research water ballast is effectively processed and technology are one of current important research directions in the urgent need to development in various countries.
At present requiredly a kind ofly can overcome that the equipment volume existing in existing seagoing vessel ballast water treatment technology is large, power consumption is large, sterilizing not thoroughly, seawater is caused to the shortcomings such as secondary pollution, poor processing effect, invent the treatment process of the seagoing vessel water ballast of a kind of brand-new high-level efficiency, less energy-consumption, non-secondary pollution, can meet the requirement of International Maritime Organizaton, that is: safe, reliable and effective, environment allow and expense reasonable.
Summary of the invention
Object of the present invention, exactly in order to address the above problem, provides the cruising ballast water treatment process of a kind of ozone/ultrasonic/ultraviolet coupling.
In order to achieve the above object, the present invention has adopted following technical scheme: a kind of cruising ballast water treatment process, comprises the following steps:
1) seawater of preparing as water ballast is filtered by strainer;
2) seawater after filtering is carried out to ozone oxidation sterilization;
3) seawater through ozone oxidation sterilization is carried out to ultrasonic cavitation sterilization;
4) seawater through ultrasonic cavitation sterilization is carried out to ultraviolet-sterilization;
5) seawater through ultraviolet-sterilization is passed into ballast storehouse as water ballast;
6) after ballast end of processing, strainer is carried out to back flushing with seawater;
7) before water ballast is discharged, again by step 2), 3) and 4) process;
8) water ballast of processing after qualified is discharged.
Described strainer is 25 μ m strainers.
Described ozone oxidation sterilization is to dissolve in ozone in the seawater that is equivalent to water ballast 10%, makes the ozone water solution of 2-3mg/L, then in pipeline, mixes and carry out ozone oxidation sterilization with the seawater that is equivalent to water ballast 90%, and the biochemical reaction time is 5-10 second.
The ultrasonic wave that described ultrasonic cavitation sterilization adopts is near the low-frequency sound wave of frequency 15kHz.
The UV-light that described ultraviolet-sterilization adopts is that predominant wavelength is lower than the UV-light of 272nm.
The ozonizer that described ozone is produced ozone by electrolysis pure water produces, and it is to adopt gas-liquid mixing pump that ozone pressure solution is entered to seawater that ozone dissolves in seawater.
Described ultrasonic wave is produced by ultrasonic transducer.
Described UV-light is produced by low pressure mercury lamp.
The present invention compared with prior art, has following advantage and disadvantage:
1, the present invention combines ozone oxidation sterilization, ultrasonic cavitation sterilizing, ultraviolet light irradiation sterilization three's synergy, be existing ozonidation in reaction process, ultrasonic cavitation effect, there are again uv disinfection and Degradation, made up sterilization that conventional ultraviolet technology exists not thoroughly, form the problem of the biomutation of resistance to ultraviolet, also got rid of independent ozone treatment method because tail gas is containing potential environment and ecological hazard problems such as a large amount of ozone polluted airs.
2, the present invention adopts water electrolysis method to produce ozone, has avoided the low life-span inferior position of electroionic process ozone preparation under severe ocean shipping environment; And be combined with the high efficient gas and liquid mixing pump of technology maturation, during can being dissolved in to water under short period of time, small flow rate, the ozone making makes ozone water.
3, combining ultrasonic cavatition of the present invention, in ozone oxidation sterilization, is further utilized ozone micro bubble free in ozone water under cavatition, thus the deactivation of strengthening to microorganism, and lethal time is foreshortened to 5-10 second greatly.
4, the method in the present invention is except the ozone that produce at scene, not additional any other pharmaceutical chemicals, little to the negative impact of ecotope that uses, and unnecessary ozone can be resolved into oxygen by ultraviolet rays, so present method do not cause secondary pollution, little to the negative impact of ecotope.
5, because of three kinds of techniques of high effective integration, therefore equipment volume is little, energy consumption is low, processing efficiency is high, applied widely.And can adjust flexibly treatment scale by the number of increase and decrease ozonizer, ultrasonic transducer, low pressure mercury lamp, processing power can be at 20-5000m3/h.
6, the organic pollutant that can degrade in kill microorganisms in seawater, improves the water quality of discharging water ballast.
Accompanying drawing explanation
Fig. 1 implements the process flow sheet that method of the present invention adopts.
Embodiment
Cruising ballast water treatment process of the present invention, comprises the following steps:
1) seawater of preparing as water ballast is filtered by 25 μ m strainers; With removal, be greater than the planktonic organism of 25 μ m etc.
2) dissolve in ozone in 10% of the seawater after filtration, make the ozone water solution of 2-3mg/L, then in pipeline, mix and carry out ozone oxidation sterilization with all the other seawater of 90%, the biochemical reaction time is 5-10 second.The ozonizer that ozone is wherein produced ozone by electrolysis pure water produces, and it is to adopt gas-liquid mixing pump that ozone is efficiently dissolved in to seawater that ozone dissolves in seawater.
3) by the seawater proportion through ozone oxidation sterilization, near low-frequency sound wave 15kHz carries out ultrasonic cavitation sterilization; This ultrasonic wave is produced by ultrasonic transducer.
4) seawater through ultrasonic cavitation sterilization is carried out to ultraviolet-sterilization by predominant wavelength lower than the UV-light (getting excellent is 254nm) of 272nm; This UV-light is produced by one group of low pressure mercury lamp.
5) seawater through ultraviolet-sterilization is passed into ballast storehouse as water ballast.
6) after ballast end of processing, strainer is carried out to back flushing with seawater, the seawater that recoil washes discharges on the spot.
7) before water ballast is discharged, again by step 2), 3) and 4) process.
8) water ballast of processing after qualified is discharged.
Referring to Fig. 1, Fig. 1 implements the process flow sheet that method of the present invention adopts.Mark in figure: 1. sea intake; 2. magnetic valve; 3. butterfly valve; 4. sea-water pump; 5. vacuum breaker; 6. under meter; 7. strainer; 8. electrical ball valve; 9. under meter; 10. ozonizer; 11. ozone tail gas splitters; 12. consistency of ozone water detectors; 13. ultrasonic transducers; 14. low pressure mercury lamps; 15. ballast tanks; 16. water ballasts divide pipeline (for molten gas); 17. entrance pressures carry storekeeper road; 18.TRO detector; 19. water ballast outlets.
Below in conjunction with technical scheme and accompanying drawing, describe embodiments of the present invention in detail.
In ballast flow process: seawater pumps into ballast water treatment pipeline from sea intake 1 through sea-water pump 4.First process strainer 7 removals are greater than the planktonic organism of 25 μ m etc.Then ozonizer 10 with gas-liquid mixing pump take out approximately 10% water ballast, by water ballast, carry minute pipeline 16 and the ozone gas that ozonizer 10 produces to be mixed and made into ozone water.The ozone gas amount that can add according to the water quality of water ballast and Biological indicators adjustment.Ozone water solution mixes the laggard ultrasonic transducer 13 that enters with 90% water ballast of main line, pass through subsequently ultraviolet sterilizer (low pressure mercury lamp) 14 again and complete sterilizing flow process.The water outlet of ultraviolet sterilizer 14 enters ballast tank 15 through warehouse entry pipeline 17, completes ballast flow process.
In unloading flow process: sea-water pump 4 takes out water ballast from ballast tank 15, without strainer 7, and directly enter water ballast, carry a minute pipeline 16, through ultrasonic transducer 13 and ultraviolet sterilizer 14, ultraviolet sterilizer 14 water outlets judge through TRO detector 18 whether the concentration of residual oxygen agent exceeds standard, the water that exceeds standard is back to ballast tank 15 through warehouse entry pipeline 17, and water up to standard is through exporting 19 discharges.
Claims (8)
1. a cruising ballast water treatment process, is characterized in that, comprises the following steps:
1) seawater of preparing as water ballast is filtered by strainer;
2) seawater after filtering is carried out to ozone oxidation sterilization;
3) seawater through ozone oxidation sterilization is carried out to ultrasonic cavitation sterilization;
4) seawater through ultrasonic cavitation sterilization is carried out to ultraviolet-sterilization;
5) seawater through ultraviolet-sterilization is passed into ballast storehouse as water ballast;
6) after ballast end of processing, strainer is carried out to back flushing with seawater;
7) before water ballast is discharged, again by step 2), 3) and 4) process;
8) water ballast of processing after qualified is discharged.
2. ballast water processing according to claim 1, is characterized in that, described strainer is 25 μ m strainers.
3. ballast water processing according to claim 1, it is characterized in that, described ozone oxidation sterilization is to dissolve in ozone in the seawater that is equivalent to water ballast 10%, make the ozone water solution of 2-3mg/L, in pipeline, mix and carry out ozone oxidation sterilization with the seawater that is equivalent to water ballast 90% again, the biochemical reaction time is 5-10 second.
4. ballast water processing according to claim 1, is characterized in that, the ultrasonic wave that described ultrasonic cavitation sterilization adopts is near the low-frequency sound wave of frequency 15kHz.
5. ballast water processing according to claim 1, is characterized in that, the UV-light that described ultraviolet-sterilization adopts is that predominant wavelength is lower than the UV-light of 272nm.
6. ballast water processing according to claim 3, is characterized in that, the ozonizer that described ozone is produced ozone by electrolysis pure water produces, and it is to adopt gas-liquid mixing pump that ozone pressure solution is entered to seawater that ozone dissolves in seawater.
7. ballast water processing according to claim 4, is characterized in that, described ultrasonic wave is produced by ultrasonic transducer.
8. ballast water processing according to claim 5, is characterized in that, described UV-light is produced by low pressure mercury lamp.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201410242229.6A CN104016533A (en) | 2014-06-03 | 2014-06-03 | Ship ballast water treating method |
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| CN201410242229.6A CN104016533A (en) | 2014-06-03 | 2014-06-03 | Ship ballast water treating method |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105293650A (en) * | 2015-11-14 | 2016-02-03 | 常州大学 | Ultrasonic wave-advanced oxidation cooperative technology used for treating algaes |
| CN105413434A (en) * | 2015-12-31 | 2016-03-23 | 无锡蓝天电子有限公司 | Technology for simultaneous treatment of ship tail gas desulphurization and ship ballast water |
| CN105617841A (en) * | 2015-12-31 | 2016-06-01 | 胡克峰 | Ship tail gas desulfurization and ship ballast water integrated treatment technology |
| WO2017119615A1 (en) * | 2016-01-08 | 2017-07-13 | 선보공업주식회사 | Device for treating ballast water by using ozone and ultraviolet (uv) irradiation |
| CN109879502A (en) * | 2019-04-15 | 2019-06-14 | 中国华电科工集团有限公司 | One kind ultraviolet-chlorination-intensified by ultrasonic wave sterilization pretreatment technique and device |
| CN110342705A (en) * | 2019-07-16 | 2019-10-18 | 浙江海洋大学 | A kind of ship ballast water treatment system |
| CN111453787A (en) * | 2020-03-13 | 2020-07-28 | 上海外高桥造船有限公司 | Ballast water treatment system for ship |
| CN112209542A (en) * | 2019-07-10 | 2021-01-12 | 九江精密测试技术研究所 | Portable ballast water processing system in harbour |
| CN112321038A (en) * | 2020-09-27 | 2021-02-05 | 江苏骅通船舶工程设备有限公司 | Environment-friendly ballast water treatment system for ship and treatment method thereof |
| CN114880867A (en) * | 2022-05-24 | 2022-08-09 | 中交三航局第二工程有限公司 | Oil consumption optimization method and system for mud transporting ship based on ballast water curve design algorithm |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030015481A1 (en) * | 2001-06-28 | 2003-01-23 | Eidem Ola Magne | Method and apparatus for treating/disinfecting ballast water in ships |
| JP2006239556A (en) * | 2005-03-03 | 2006-09-14 | Mitsui Eng & Shipbuild Co Ltd | Ballast water treatment method |
| CN101781046A (en) * | 2009-11-19 | 2010-07-21 | 上海海事大学 | Ship ballast water processing method combining ozone and photocatalysis |
| CN202046961U (en) * | 2011-05-04 | 2011-11-23 | 深圳力合环保技术有限公司 | Ship ballast water treatment system |
| US20120043270A1 (en) * | 2009-10-16 | 2012-02-23 | Linxing Wang | Ballast water treatment system |
-
2014
- 2014-06-03 CN CN201410242229.6A patent/CN104016533A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030015481A1 (en) * | 2001-06-28 | 2003-01-23 | Eidem Ola Magne | Method and apparatus for treating/disinfecting ballast water in ships |
| JP2006239556A (en) * | 2005-03-03 | 2006-09-14 | Mitsui Eng & Shipbuild Co Ltd | Ballast water treatment method |
| US20120043270A1 (en) * | 2009-10-16 | 2012-02-23 | Linxing Wang | Ballast water treatment system |
| CN101781046A (en) * | 2009-11-19 | 2010-07-21 | 上海海事大学 | Ship ballast water processing method combining ozone and photocatalysis |
| CN202046961U (en) * | 2011-05-04 | 2011-11-23 | 深圳力合环保技术有限公司 | Ship ballast water treatment system |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105293650A (en) * | 2015-11-14 | 2016-02-03 | 常州大学 | Ultrasonic wave-advanced oxidation cooperative technology used for treating algaes |
| CN105413434A (en) * | 2015-12-31 | 2016-03-23 | 无锡蓝天电子有限公司 | Technology for simultaneous treatment of ship tail gas desulphurization and ship ballast water |
| CN105617841A (en) * | 2015-12-31 | 2016-06-01 | 胡克峰 | Ship tail gas desulfurization and ship ballast water integrated treatment technology |
| CN105413434B (en) * | 2015-12-31 | 2018-03-06 | 无锡蓝天电子股份有限公司 | The technique that a kind of ship tail gas desulfurization and ballast water for ship are handled simultaneously |
| CN105617841B (en) * | 2015-12-31 | 2018-06-26 | 胡克峰 | A kind of ship tail gas desulfurization and ballast water for ship integrated processing technique |
| WO2017119615A1 (en) * | 2016-01-08 | 2017-07-13 | 선보공업주식회사 | Device for treating ballast water by using ozone and ultraviolet (uv) irradiation |
| CN109879502A (en) * | 2019-04-15 | 2019-06-14 | 中国华电科工集团有限公司 | One kind ultraviolet-chlorination-intensified by ultrasonic wave sterilization pretreatment technique and device |
| CN112209542A (en) * | 2019-07-10 | 2021-01-12 | 九江精密测试技术研究所 | Portable ballast water processing system in harbour |
| CN110342705A (en) * | 2019-07-16 | 2019-10-18 | 浙江海洋大学 | A kind of ship ballast water treatment system |
| CN111453787A (en) * | 2020-03-13 | 2020-07-28 | 上海外高桥造船有限公司 | Ballast water treatment system for ship |
| CN112321038A (en) * | 2020-09-27 | 2021-02-05 | 江苏骅通船舶工程设备有限公司 | Environment-friendly ballast water treatment system for ship and treatment method thereof |
| CN114880867A (en) * | 2022-05-24 | 2022-08-09 | 中交三航局第二工程有限公司 | Oil consumption optimization method and system for mud transporting ship based on ballast water curve design algorithm |
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Application publication date: 20140903 |