CN102424464A - Elimination method of total residual oxidants (TRO) - Google Patents
Elimination method of total residual oxidants (TRO) Download PDFInfo
- Publication number
- CN102424464A CN102424464A CN2011104324947A CN201110432494A CN102424464A CN 102424464 A CN102424464 A CN 102424464A CN 2011104324947 A CN2011104324947 A CN 2011104324947A CN 201110432494 A CN201110432494 A CN 201110432494A CN 102424464 A CN102424464 A CN 102424464A
- Authority
- CN
- China
- Prior art keywords
- tro
- ballast
- water
- reductive agent
- controller
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Landscapes
- Treatment Of Water By Oxidation Or Reduction (AREA)
Abstract
The invention relates to an elimination method of total residual oxidants (TRO). The elimination method is characterized in that: when treated ballast water is discharged, the ballast water containing TRO flows out from a ballast tank, firstly, the content of TRO in water is detected by a residual chlorine analyzer, the measurement signal is transmitted to a controller, the controller automatically calculates the amount of the reducing agent to be added according to the measured TRO content, ballast water flow and the ratio of the reducing agent, the signal is transmitted to a metering pump, the metering pump pumps a proper amount of reducing agent to the suction port end of a ballast pump from a storage tank according to the instruction of the controller, and the TRO in the ballast water is eliminated under the stirring action of the ballast pump. Multiple experiments prove that by the elimination method, the TRO in the treated ballast water can be completely eliminated, the influence of the TRO on the ocean environment is eliminated, the use amount of the reducing agent is greatly reduced, the influence of the reducing agent on the ocean environment is reduced to the minimum, and the volume and operating cost of a neutralizing unit are reduced.
Description
Technical field
The present invention relates to a kind of boats and ships green technology, specifically is a kind of removing method of residual oxide, is mainly used in the residual oxide of eliminating in the ballast water for ship.
Background technology
Along with the continuous quickening of global economic integration progress, the international logistics industry increases rapidly, and ship is a ring important in the global logistics chain, and according to statistics, the goods in the international trade more than 80% is transported through boats and ships.In the ship's navigation process, ballast is a kind of inevitable state, and boats and ships are when installing water ballast additional, and local aquatic organism also will be loaded in the ballast tank thereupon, behind Completion of the Adventure, arrive the marine site, point of destination with discharge of ballast water.Water ballast follow boats and ships from a ground to its ground, thereby caused the propagation of unwanted aquatic organism and pathogenic agent.For effectively controlling and prevent ballast water for ship propagation unwanted aquatic organism and pathogenic agent, International Maritime Organizaton (IMO) passed through " ballast water for ship and settling control and management international convention " in 2004." pact " stipulates that all boats and ships must install ballast water treatment plant as per the schedule, and existing vessel is reviewed enforcement.
The ballast for cruising water technology has been carried out big quantity research both at home and abroad.The major technique that adopts at present has: electrolytic process, ozone method, dioxide peroxide method, ultraviolet irradiation, advanced oxidation processes etc.Wherein, Electrolytic process, ozone method and dioxide peroxide method all belong to the method that adopts oxidative bactericide, and its ultimate principle is through in water ballast, adding materials such as oxidative bactericide such as Youxiaolin, ozone, dioxide peroxide, making residual oxide (the Total Residual Oxidants in the water; Abbreviation TRO) reaches certain level; Keep certain hour, killing the unwanted aquatic organism in the water, thereby reach the water ballast standard of performance (D-2 standard) of International Maritime Organizaton (IMO) regulation.
Yet this type adds the technology of oxidative bactericide in the kill harmful aquatic organism, and the residual oxide during discharging (TRO) concentration possibly exceed standard, thereby secondary pollution is caused in the waters, especially some short-legged boats and ships.Because the natural degradation of TRO in water needs the regular hour, short-legged boats and ships still contain the TRO of higher concentration in the water when the discharging water ballast, and TRO has certain eco-toxicity, can cause disadvantageous effect to the marine eco-environment.In order to address this problem, need the technology for eliminating of a kind of TRO of development, promptly during the discharge of ballast water after processing, TRO is neutralized the elimination secondary pollution with a certain amount of reductive agent.In the technology for eliminating of residual oxide (TRO), the selection of reductive agent and adding proportion are exactly the key of this technology.
External part research and development merchant has adopted similar techniques, and the reductive agent of employing mainly contains: Sulfothiorine, S-WAT, sodium sulfite anhy 96.When adding reductive agent, if add reductive agent according to the ratio of stoichiometric equation, then remaining TRO can still not had certain influence to ocean environment by neutralization fully, and therefore, reductive agent must be excessive.Yet; In the existing neutralization technology; The amount of the reductive agent that the technology that has is added is excessive too many, and the problem that causes is that excessive reductive agent has consumed the dissolved oxygen in the water, causes the waters anoxic; Cause the destruction of ocean environment equally, influence halobiontic growths such as algae, invertebrates and fish.The quantity not sufficient of the reductive agent that the technology that also has is added still contains a certain amount of TRO in the water ballast of discharging, ocean environment is caused disadvantageous effect.
Summary of the invention
The present invention aims to provide a kind of removing method of residual oxide, to solve the inappropriate problem of reduction dosage of the technological interpolation that exists of existing neutralization.
Technical scheme of the present invention is: a kind of removing method of residual oxide is characterized in that, during discharge of ballast water after the processing; The water ballast that contains residual oxide TRO flows out from ballast tank; At first detect the TRO content that contains in the water with the chlorine residue analyser, and measurement signal is reached controller, controller is according to content, the flow of water ballast and the proportionlity of reductive agent of the TRO that records; Automatically calculate the amount of the reductive agent that needs interpolation; This signal is passed to volume pump,, an amount of reductive agent is joined ballast pump intake end from storage tank by the instruction of volume pump according to controller; Stirring action through ballast pump is eliminated the residual oxide in the water ballast.
Described reductive agent is selected saturated sodium thiosulfate solution for use; In and the time; The optimum proportion scope of Sulfothiorine and remaining TRO is: Sulfothiorine: Youxiaolin=(5-10): 8, be mol ratio, wherein Youxiaolin concentration is to be obtained by equivalent conversion by remaining TRO concentration.
Advantage of the present invention is: after adopting technique scheme; TRO remaining in the water ballast of discharging is 0mg/L, and concentration of sodium thiosulfate has been eliminated the residual oxide in the water ballast after handling fully less than 10 mg/L; Eliminated the influence of residual oxide to ocean environment; And greatly reduce remaining concentration of sodium thiosulfate, not only make its influence reduce to minimum, and reduced the consumption of reductive agent ocean environment; Reduce the volume and the running cost of neutralisation unit, surpassed the processing horizontal of prior art.
Description of drawings
Fig. 1 is equipment formation and the workflow synoptic diagram that the present invention eliminates residual oxide.
Mark among the figure: 1, ballast tank; 2, chlorine residue analyser; 3, controller; 4, volume pump; 5, reductive agent storage tank; 6, ballast pump.
Embodiment
Referring to Fig. 1, the present invention selects for use saturated sodium thiosulfate solution as reductive agent, in and the time, the optimum proportion scope of Sulfothiorine and remaining TRO is:
Sulfothiorine: Youxiaolin=(5-10): 8 (mol ratios; Remaining TRO concentration is Youxiaolin concentration by equivalent conversion).
During discharge of ballast water, eliminate the system's formation and the workflow of residual oxide and see Fig. 1.
During discharge of ballast water after the processing; The water ballast that contains residual oxide TRO flows out from ballast tank 1; At first detect the TRO content that contains in the water with chlorine residue analyser 2, and measurement signal is reached controller 3, controller 3 is according to the flow and the aforementioned proportion relation of content and the water ballast of the TRO that records; Automatically calculate the amount of the reductive agent that needs interpolation; This signal is passed to volume pump 4,, an amount of reductive agent is joined the suction port end of ballast pump 6 from storage tank 5 by the instruction of volume pump 4 according to controller 3.Stirring action through ballast pump 6 is eliminated the residual oxide in the water ballast.
The present invention adopts under the normal temperature saturated aqueous sodium thiosulfate as reductive agent, and advantage is that the solubleness of Sulfothiorine is big, low according to the ratio consumption of stoichiometric equation, thereby makes that the neutralisation unit volume of ballast water treatment system is little.And the Sulfothiorine Nonpoisonous, non-environmental-pollution is convenient to store on the ship and the crewman carries out complement operation.
Repeatedly experimental verification; The present invention can eliminate the residual oxide in the water ballast after the processing fully, has eliminated the influence of residual oxide to ocean environment, and greatly reduces the consumption of reductive agent; Make its influence reduce to minimum, reduced the volume and the running cost of neutralisation unit ocean environment.
According to the technological method of listing in the summary of the invention, according to the parameter among following 3 embodiment the residual oxide in the water ballast is eliminated processing respectively.TRO and concentration of sodium thiosulfate in the water ballast before and after handling are measured, and the result sees table 1:
Embodiment 1:
Adopt saturated sodium thiosulfate solution as reductive agent, the ratio of Sulfothiorine and remaining TRO concentration is: Sulfothiorine: Youxiaolin=5:8 (mol ratio).
Embodiment 2:
Adopt saturated sodium thiosulfate solution as reductive agent, the ratio of Sulfothiorine and remaining TRO concentration is: Sulfothiorine: Youxiaolin=7:8 (mol ratio).
Embodiment 3:
Adopt saturated sodium thiosulfate solution as reductive agent, the ratio of Sulfothiorine and remaining TRO concentration is: Sulfothiorine: Youxiaolin=10:8 (mol ratio).
The water ballast neutralizing treatment effect that records among table 1 embodiment
Claims (2)
1. the removing method of a residual oxide is characterized in that, during discharge of ballast water after the processing; The water ballast that contains residual oxide TRO flows out from ballast tank; At first detect the TRO content that contains in the water with the chlorine residue analyser, and measurement signal is reached controller, controller is according to content, the flow of water ballast and the proportionlity of reductive agent of the TRO that records; Automatically calculate the amount of the reductive agent that needs interpolation; This signal is passed to volume pump,, an amount of reductive agent is joined ballast pump intake end from storage tank by the instruction of volume pump according to controller; Stirring action through ballast pump is eliminated the residual oxide in the water ballast.
2. the removing method of residual oxide according to claim 1; It is characterized in that; Described reductive agent is selected saturated sodium thiosulfate solution for use, in and the time, the optimum proportion scope of Sulfothiorine and remaining TRO is: Sulfothiorine: Youxiaolin=(5-10): 8; Be mol ratio, wherein Youxiaolin concentration is to be obtained by equivalent conversion by remaining TRO concentration.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104324947A CN102424464A (en) | 2011-12-21 | 2011-12-21 | Elimination method of total residual oxidants (TRO) |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104324947A CN102424464A (en) | 2011-12-21 | 2011-12-21 | Elimination method of total residual oxidants (TRO) |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102424464A true CN102424464A (en) | 2012-04-25 |
Family
ID=45958508
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011104324947A Pending CN102424464A (en) | 2011-12-21 | 2011-12-21 | Elimination method of total residual oxidants (TRO) |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102424464A (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201495125U (en) * | 2009-07-31 | 2010-06-02 | 深圳市水务(集团)有限公司 | System for performing on-line monitoring on residual chlorine in fluid |
| JP2010194479A (en) * | 2009-02-26 | 2010-09-09 | Nippon Rensui Co Ltd | Pure-water production apparatus |
-
2011
- 2011-12-21 CN CN2011104324947A patent/CN102424464A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010194479A (en) * | 2009-02-26 | 2010-09-09 | Nippon Rensui Co Ltd | Pure-water production apparatus |
| CN201495125U (en) * | 2009-07-31 | 2010-06-02 | 深圳市水务(集团)有限公司 | System for performing on-line monitoring on residual chlorine in fluid |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101715431B (en) | Ballast tank circulation management system | |
| KR100889190B1 (en) | Ozone injection method and system | |
| KR101066674B1 (en) | Electrolysis unit, apparatus for treatment of ballast water of ship with the same | |
| CN101531410B (en) | Ocean vessel ballast water processing method and special system using same | |
| JP2020515378A (en) | Ballast water management system | |
| US20240002032A1 (en) | Ballast Water Treatment and Neutralization | |
| US10287200B2 (en) | Method for treating ballast water and device for treating ballast water used therefor | |
| CN105413434A (en) | Technology for simultaneous treatment of ship tail gas desulphurization and ship ballast water | |
| KR20150056150A (en) | Ship ballast processing device having hypochlorite storage tank and processing method thereof | |
| CN202440358U (en) | Residual oxide eliminating device | |
| CN201400589Y (en) | Improved special ocean vessel ballast water treatment system | |
| CN110902771A (en) | Marine cooling water marine organism prevention treatment system | |
| KR101538501B1 (en) | Apparatus for treatmenting ballast water | |
| CN102424464A (en) | Elimination method of total residual oxidants (TRO) | |
| JP5032810B2 (en) | Ballast water treatment system | |
| US9212073B2 (en) | Ballast water treatment agent and method of treating ballast water of ship using the same | |
| EP3231701B1 (en) | Ballast water treatment device having device for injecting bromine salt and ozone | |
| JP6529706B1 (en) | Ballast water treatment method | |
| CN101704573A (en) | Neutralization treatment method for ballast water of ships | |
| WO2016028231A1 (en) | Ballast water treatment system and method of ballast water treatment | |
| JP6241321B2 (en) | Ballast water treatment method | |
| CN110902896A (en) | Ballast water marine organism prevention treatment system and control method thereof | |
| KR101415207B1 (en) | Smart ballast water treatment system using electrolysis opitmumly supplying counteractive and method for controlling the same | |
| JP2013046897A (en) | Treatment method of ship ballast water | |
| KR20230041481A (en) | Ballast water treatment system and ship having the same |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C53 | Correction of patent of invention or patent application | ||
| CB02 | Change of applicant information |
Address after: 266101 Zhuzhou Road, Laoshan District, Shandong, China, No. 149-1, No. Applicant after: Qingdao Sunrui Marine Environment Engineering Co., Ltd. Address before: 266101 Zhuzhou Road, Laoshan District, Shandong, China, No. 149-1, No. Applicant before: Sunrui Marine Environment Engineering Company |
|
| COR | Change of bibliographic data |
Free format text: CORRECT: APPLICANT; FROM: QINGDAO SUNRUI MARINE ENVIRONMENT ENGINEERING COMPANY TO: QINGDAO SUNRUI MARINE ENVIRONMENT ENGINEERING CO., LTD. |
|
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20120425 |