CN105498490A - Seawater electrolysis and ultraviolet radiation integrated marine exhaust multi-pollutants comprehensive treatment method and device thereof - Google Patents

Seawater electrolysis and ultraviolet radiation integrated marine exhaust multi-pollutants comprehensive treatment method and device thereof Download PDF

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CN105498490A
CN105498490A CN201510853706.7A CN201510853706A CN105498490A CN 105498490 A CN105498490 A CN 105498490A CN 201510853706 A CN201510853706 A CN 201510853706A CN 105498490 A CN105498490 A CN 105498490A
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seawater
flue gas
input
ultraviolet irradiation
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CN105498490B (en
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潘新祥
杨少龙
韩志涛
潘博
刘立国
杜还
于景奇
夏鹏飞
宋永惠
郑德康
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Dalian Maritime University
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34—Chemical or biological purification of waste gases
    • B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
    • B01D53/75—Multi-step processes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D47/00—Separating dispersed particles from gases, air or vapours by liquid as separating agent
    • B01D47/06—Spray cleaning
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D50/00—Combinations of methods or devices for separating particles from gases or vapours
    • B01D50/40—Combinations of devices covered by groups B01D45/00 and B01D47/00
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34—Chemical or biological purification of waste gases
    • B01D53/46—Removing components of defined structure
    • B01D53/60—Simultaneously removing sulfur oxides and nitrogen oxides
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34—Chemical or biological purification of waste gases
    • B01D53/92—Chemical or biological purification of waste gases of engine exhaust gases
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34—Chemical or biological purification of waste gases
    • B01D53/96—Regeneration, reactivation or recycling of reactants
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
    • C02F1/461—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F9/00—Multistage treatment of water, waste water or sewage
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
    • C25B1/00—Electrolytic production of inorganic compounds or non-metals
    • C25B1/01—Products
    • C25B1/24—Halogens or compounds thereof
    • C25B1/26—Chlorine; Compounds thereof
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2251/00—Reactants
    • B01D2251/10—Oxidants
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2251/00—Reactants
    • B01D2251/10—Oxidants
    • B01D2251/108—Halogens or halogen compounds
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2257/00—Components to be removed
    • B01D2257/30—Sulfur compounds
    • B01D2257/302—Sulfur oxides
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2257/00—Components to be removed
    • B01D2257/40—Nitrogen compounds
    • B01D2257/404—Nitrogen oxides other than dinitrogen oxide
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2258/00—Sources of waste gases
    • B01D2258/01—Engine exhaust gases
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2259/00—Type of treatment
    • B01D2259/12—Methods and means for introducing reactants
    • B01D2259/124—Liquid reactants
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2301/00—General aspects of water treatment
    • C02F2301/08—Multistage treatments, e.g. repetition of the same process step under different conditions

Abstract

The invention discloses a seawater electrolysis and ultraviolet radiation integrated marine exhaust multi-pollutants comprehensive treatment method, which comprises the following steps: preparing a sodium hypochlorite solution by a diaphragm-free seawater electrolysis method, adjusting pH value of the sodium hypochlorite solution, carrying out ultraviolet radiation treatment to obtain a sodium hypochlorite solution containing strong oxidizing ROS, mixing the sodium hypochlorite solution containing strong oxidizing ROS and flue gas to be treated so as to obtain flue gas containing water-soluble high-valence acidic harmful pollutants and acid waste liquid, treating by a seawater wet processing, purifying the flue gas and directly discharging the purified flue gas into the atmosphere, and separating and purifying the waste liquid. The invention also discloses a seawater electrolysis and ultraviolet radiation integrated marine exhaust multi-pollutants comprehensive treatment device. By using seawater as a raw material, the strong oxidizing absorbent is prepared on line. Gas-liquid reaction and absorption effects are enhanced, power consumption of electrolysis is reduced, system economy is raised, and potential safety hazard of shipping business that is brought by transport and storage of chemicals is effectively avoided.

Description

A kind of electrolytic seawater and the integrated marine exhaust multi-pollutant integrated conduct method of ultraviolet irradiation and device
Technical field
The invention belongs to the Prevention Technique field that boats and ships cause atmosphere pollution, be specifically related to a kind of electrolytic seawater and the integrated marine exhaust multi-pollutant integrated conduct method of ultraviolet irradiation and device.
Background technology
Along with the sustainable growth of global economy, Shipping industry achieves and develops rapidly, and foreign-going ship tonnage and quantity also significantly rise thereupon.For cutting operating costs, most of merchant ship all selects the heavy residue in oil refining link oily as fuel, and the air environmental pollution causing foreign-going ship to cause thus is also more and more serious.
According to statistics display in " fresh air blueprint " that Hong Kong Environmental Protection Administration of China issues for 2013,2011, Hong Kong shipping emission sulphur oxide (SOx) accounted for 54%, and nitrogen oxide (NOx) accounts for 33%, PM10 and accounts for 37%.Show according to another " international carriage is on the impact of European air quality and the climate change " report of to issue for 2014, since nineteen ninety, the Air Pollutant Emission such as PM2.5 and NOx from shipping sector continues to increase, and land is discharged and reduced gradually.If situation continues, to the year two thousand twenty, shipping business, by becoming maximum air pollution emission source, Europe, even exceedes the summation of all land-sourced pollutants.
In order to reduce the infringement that marine exhaust causes atmospheric environment and health, International Maritime Organization (IMO) and Systems in Certain Developed Countries environmental protection organization have formulated more and more stricter emission control regulations.Suggestion or mandatory emission control measure is implemented for noxious pollutants such as SOx, NOx, PM in marine exhaust.For this reason, in recent years, domestic and international many scientific research institutions, maritime affairs universities and colleges and relevant enterprise etc. carry out the research of a large amount of ship waste gas multi-pollutant integrated treatments, such as: publication number CN102463015A " desulfurization denitration method of marine exhaust and treating apparatus ", first use ozone and hydrogen peroxide oxidation marine diesel waste gas, synthesis desulfurating denitration is realized with absorption again with in sodium chloride, but the method needs to store excessive ozone and hydrogenperoxide steam generator with ship, and the nitric acid generated and the corrosion-resistant degree of sulfuric acid to equipment require high, initial outlay and maintenance cost raise, publication number CN104121072A " a kind of exhaust emission for two stroke diesel engine combine remove device ", wet scrubbing mode is adopted to remove SOx, again by Partial cleansing rear low temperature waste gas recirculation, thus reduce engine NOx generation amount, but program denitration rate is limited, and engine combustion can be caused insufficient, the problems such as HC and CO discharge capacity increase, (the ANS such as cultivate one's moral character in Japanese scholars western people from field, NISHIDAO.NewApplicationofSeawaterandElectrolyzedSeawater inAirPollutionControlofMarineDieselEngine. [J] .JSMEInternationalJournalSeriesBFluidsandThermalEngineer ing, 2003, 46 (1): 206 – 213.) research and propose marine exhaust comprehensive processing technique based on electrolysis with ion-exchange film seawater, the sequential process adopting anolyte oxidation and catholyte to absorb realizes desulfurization, denitration, de-PM, but it is higher to there is ionic membrane cost in the method, seawater electrolysis matter is easy to be dirty stifled, the problems such as consumption is large, publication number CN103349907A " flue gas desulfurization and denitrification system " and publication number CN101053750 " a kind of method of flue gas combined desulfurization and denitration ", adopt NO in photocatalysis oxidation method efficient oxidation flue gas, but due to photochemical catalyst complicated process of preparation, and the easy dirty stifled inactivation in gas-solid reaction process catalyst surface, because which limit the denitrification efficiency of catalyst.To sum up, for marine exhaust multi-pollutant process problem, be limited to the factors such as boats and ships space, operation cost, still do not have a kind of efficient, economic exhaust gas measuring Technique Popularizing to apply at present.
Summary of the invention
According to the technical problem of above-mentioned proposition, and provide a kind of electrolytic seawater and the integrated marine exhaust multi-pollutant integrated conduct method of ultraviolet irradiation and device.
The technological means that the present invention adopts is as follows:
Electrolytic seawater and the integrated marine exhaust multi-pollutant integrated conduct method of ultraviolet irradiation, is characterized in that having following steps:
S1, prepare liquor natrii hypochloritis by diaphragm-free electrolysis seawater method;
The waste liquid obtained after S2, seawater wet-treating flue gas mixes with described liquor natrii hypochloritis after isolation of purified process, regulates the pH value of described liquor natrii hypochloritis to be 5-6;
S3, the solution obtained in step S2 is carried out ultraviolet irradiation process, obtain the liquor natrii hypochloritis containing strong oxidizing property ROS, the solution obtained in step S2 carries out ultraviolet irradiation process, part HOCl/OCl in solution -generation light decomposes, thus living broadcast contains the liquor natrii hypochloritis of strong oxidizing property ROS, and described strong oxidizing property ROS mainly comprises OH .with ClO .;
S4, the described liquor natrii hypochloritis containing strong oxidizing property ROS to be mixed with pending flue gas, and generate high-valence state deleterious acidic pollutant soluble in water (as NO with pending harmful substances in flue gas generation gas liquid reaction 2, NO 3 -, SO 3, SO 4 2-deng);
S5, the flue gas containing high-valence state deleterious acidic pollutant soluble in water obtained after step S4 process and the acid waste liquid that obtains are by seawater wet-treating, and directly enter air after the gas cleaning obtained, the waste liquid obtained is through isolation of purified process.Described purification refers to, through demister, part atomized drop in the flue gas obtained after described seawater wet-treating is stopped separation.
When liquor natrii hypochloritis's pH value is 5-6, the strong oxidizing property ROS content generated in solution after ultraviolet irradiation is the highest, and the oxidisability strengthening effect of ie in solution is best.
Described seawater wet-treating is referred to alkalescent natural sea-water and the flue gas containing high-valence state deleterious acidic pollutant soluble in water obtained after step S4 process and the acid waste liquid obtained is removed by neutralization reaction.
In step S5, waste liquid is after isolation of purified process, and for regulating the pH value of liquor natrii hypochloritis in fume treatment process next time, remainder arranges sea after a large amount of seawater dilution process, and the solid particulate matter obtained is stored in mud cabin.
Pending flue gas is respectively by the pre-oxidation treatment containing the liquor natrii hypochloritis of strong oxidizing property ROS obtained after ultraviolet irradiation process and seawater wet-treating, the harmful components such as SOx, NOx and PM in pending flue gas can be removed comparatively up hill and dale, realize flue gas multiple pollutant integrated treatment target.
Fume treatment process refers to the process of flue gas through described a kind of electrolytic seawater and the integrated marine exhaust multi-pollutant integrated conduct method process of ultraviolet irradiation.
The inventive method based on principle and course of reaction as follows:
First be prepare liquor natrii hypochloritis by diaphragm-free electrolysis seawater method, reaction equation is as follows:
Anode:
2Cl --2e→Cl 2，
Negative electrode:
2H 2O+2e→2OH -+H 2，
In solution:
Cl 2+H 2O→HCl+HClO，
HClO→ClO -+H +，
2HClO+ClO -→ClO 3 -+H ++Cl -，
Subsequently, the pH value regulating liquor natrii hypochloritis is 5-6,
Afterwards, liquor natrii hypochloritis, through ultraviolet irradiation intensive treatment, obtains the liquor natrii hypochloritis containing strong oxidizing property ROS, and concrete reaction equation is as follows:
HOCl+hv→HO ·+Cl ·，
OCl –+hv→O ·-+Cl ·，
OCl –+hv→Cl –+O( 3P)，
HO ·+HClO→ClO ·+H 2O，
HO ·+OCl –→ClO ·+HO –，
O ·-+O 2→O 3 –，
Cl 2O 2+H 2O→ClO 2 –+OCl –+2H +，
Cl 2O 2+ClO 2 –→ClO 3 –+Cl 2O，
Cl 2O 2→Cl 2+O 2，
By SO in above-mentioned liquor natrii hypochloritis containing strong oxidizing property ROS and pending flue gas 2, NO, NO 2etc. harmful components generation gas liquid reaction, concrete reaction equation is as follows:
ClNO 2→Cl ·+NO 2，
NO+OH ·→NO 2+H ·，
SO 2+OH ·→SO 3+H ·，
3NO 2+H 2O→2HNO 3+NO，
2NO 2+H 2O→HNO 3+HNO 2，
3HNO 2→HNO 3+H 2O+2NO，
NO 2 –+HClO→NO 3 –+HCl，
SO 2+HOCl→SO 3+HCl，
SO 3+H 2O→H 2SO 4，
After above-mentioned oxidation processes, pending harmful substances in flue gas generation gas liquid reaction generates high-valence state deleterious acidic pollutant soluble in water (as NO 2, NO 3 -, SO 3, SO 4 2-deng).
Again by seawater wet-treating, acid-base neutralization reactive absorption high-valence state deleterious acidic pollutant, thus the object realizing that multi-pollutant in flue gas removes simultaneously.
The invention also discloses a kind of electrolytic seawater and the integrated marine exhaust multi-pollutant Integrated Processing Unit of ultraviolet irradiation, comprise main sea water pump, undivided cell, ultraviolet irradiation reactor, scrubbing tower and separation purifier, the input of described main sea water pump is communicated with Sea Chest suction inlet, described main sea water delivery side of pump is communicated with Sea Chest outlet, the branch road II being provided with the branch road I be communicated with the input of filter I between described main sea water delivery side of pump with described Sea Chest outlet and being communicated with the input of supply pump, the other end of described filter I is communicated with the input of described undivided cell, the output of described undivided cell is communicated with the input of described ultraviolet irradiation reactor by pH control valve,
The top of described scrubbing tower is provided with demister, exhaust opening is provided with above described demister, the bottom of described scrubbing tower is communicated with the input of described separation purifier, the sidewall bottom of described scrubbing tower is communicated with flue, be provided with spray equipment I in described flue, the input of described spray equipment I is communicated with the output of described ultraviolet irradiation reactor, is provided with spray equipment II in described scrubbing tower, the input of described spray equipment II is communicated with described supply delivery side of pump
The output of described separation purifier is communicated with described pH control valve by filter II, and described separation purifier is provided with the slag-drip opening be communicated with mud cabin and the leakage fluid dram be communicated with described Sea Chest outlet.
Under described a kind of electrolytic seawater and the integrated marine exhaust multi-pollutant Integrated Processing Unit duty of ultraviolet irradiation, seawater pumps into from described Sea Chest suction inlet by described main sea water pump, part seawater enters described undivided cell after filter I purifies, another part seawater enters in described scrubbing tower by described supply pump and described spray equipment II successively, and electrolytic seawater living broadcast obtains liquor natrii hypochloritis.Simultaneously, in a front fume treatment process, the waste liquid obtained after seawater wet-treating flue gas is through described separation purifier process, and a part enters described pH control valve by described filter II recirculation, regulates the pH value of described liquor natrii hypochloritis to be 5-6 by described pH control valve.Afterwards this solution (pH value is the liquor natrii hypochloritis of 5-6) is inputted in ultraviolet irradiation reactor, part HOCl/OCl -there is light and decompose the liquor natrii hypochloritis obtained containing strong oxidizing property ROS, thus strengthen the oxidisability of liquor natrii hypochloritis further.Then, the liquor natrii hypochloritis containing strong oxidizing property ROS is sprayed in described flue, fully mix with pending flue gas, by gas liquid reaction, noxious pollutant in pending flue gas is become high-valence state deleterious acidic pollutant soluble in water.The flue gas containing high-valence state deleterious acidic pollutant soluble in water obtained after process and the acid waste liquid obtained enter in described scrubbing tower, continue to react with the seawater entered in described scrubbing tower, high-valence state deleterious acidic pollutant is removed by alkalescent natural sea-water, afterwards, flue gas stops after separate section atomized drop through described demister, enter in air, the waste liquid obtained then enters separation purifier process, part solution enters pH control valve through described filter II recirculation, for regulating the pH value of liquor natrii hypochloritis in fume treatment process next time, surplus solution is after the residual seawater dilution process that described main sea water pump pumps into, sea is arranged by described Sea Chest outlet, the solid particulate matter obtained is stored in mud cabin.
Compared with prior art, the present invention has following beneficial effect:
1, the present invention adopts natural sea-water to be the liquor natrii hypochloritis that raw material living broadcast contains strong oxidizing property ROS, realize liquid phase oxidation efficiently more rapidly and absorb the harmful ingredients in flue gas such as SOx, NOx, reduce electrolytic power consumption, elevator system performance driving economy, and effectively prevent the potential safety hazard of transporting and bringing to operation of ship with storage of chemical medicine.
2, compare the generating means such as plasma, ozone, the critical piece structures such as diaphragm-free electrolysis device of the present invention, ultraviolet irradiation lamp be simple, install convenient, system reliability and adaptability stronger.
3, single desulphurization and denitration technology is compared, the present invention makes full use of strong oxidizer (strong oxidizing property ROS) and acts synergistically with seawater, Optimum Synthesis processing technological flow, reach desulphurization and denitration and retting conditions thing object simultaneously, thus decrease the cost of investment of marine exhaust Integrated Processing Unit, improve the operability of Integrated Processing Unit with maintainable.
The present invention can cause the fields such as the Prevention Technique of atmosphere pollution extensively to promote at boats and ships for the foregoing reasons.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the present invention is further detailed explanation.
Fig. 1 is the structural representation of a kind of electrolytic seawater and the integrated marine exhaust multi-pollutant Integrated Processing Unit of ultraviolet irradiation in the specific embodiment of the present invention.
Wherein, in Fig. 1, the direction of arrow is media flow direction.
Detailed description of the invention
Embodiment 1
Electrolytic seawater and the integrated marine exhaust multi-pollutant integrated conduct method of ultraviolet irradiation, have following steps:
S1, prepare liquor natrii hypochloritis by diaphragm-free electrolysis seawater method;
In S2, a front fume treatment process, the waste liquid obtained after seawater wet-treating mixes with described liquor natrii hypochloritis after isolation of purified process, regulates the pH value of described liquor natrii hypochloritis, and the pH value of the liquor natrii hypochloritis obtained is 5;
S3, the solution obtained in step S2 is carried out ultraviolet irradiation process, obtain the liquor natrii hypochloritis containing strong oxidizing property ROS;
S4, the described liquor natrii hypochloritis containing strong oxidizing property ROS to be mixed with pending flue gas;
S5, the flue gas containing high-valence state deleterious acidic pollutant soluble in water obtained after step S4 process and the acid waste liquid that obtains are by seawater wet-treating, and directly enter air after the gas cleaning obtained, the waste liquid obtained is through isolation of purified process.
In step S5, waste liquid is after isolation of purified process, and for regulating the pH value of liquor natrii hypochloritis in fume treatment process next time, remainder arranges sea after a large amount of seawater dilution process, and the solid particulate matter obtained is stored in mud cabin.
Embodiment 2
A kind of electrolytic seawater and the integrated marine exhaust multi-pollutant Integrated Processing Unit of ultraviolet irradiation, comprise main sea water pump 1, undivided cell 2, ultraviolet irradiation reactor 3, scrubbing tower 4 and separation purifier 5, the input of described main sea water pump 1 is communicated with Sea Chest suction inlet 6, the output of described main sea water pump 1 is communicated with Sea Chest outlet 7, the output of described main sea water pump 1 be provided with the branch road I 9 be communicated with the input of filter I 8 and the branch road II 11 be communicated with the input of supply pump 10 between described Sea Chest outlet 7, the other end of described filter I 8 is communicated with the input of described undivided cell 2, the output of described undivided cell 2 is communicated with the input of described ultraviolet irradiation reactor 3 by pH control valve 12, the top of described scrubbing tower 4 is provided with demister 14, exhaust opening 13 is provided with above described demister 14, the bottom of described scrubbing tower 4 is communicated with the input of described separation purifier 5, the sidewall bottom of described scrubbing tower 4 is communicated with flue 15, spray equipment I 16 is provided with in described flue 15, the input of described spray equipment I 16 is communicated with the output of described ultraviolet irradiation reactor 3, spray equipment II 17 is provided with in described scrubbing tower 4, the input of described spray equipment II 17 is communicated with the output of described supply pump 10, the output of described separation purifier 5 is communicated with described pH control valve 12 by filter II 18, described separation purifier 5 is provided with the slag-drip opening 20 be communicated with mud cabin 19 and the leakage fluid dram 21 be communicated with described Sea Chest outlet 7.
The above; be only the present invention's preferably detailed description of the invention; but protection scope of the present invention is not limited thereto; anyly be familiar with those skilled in the art in the technical scope that the present invention discloses; be equal to according to technical scheme of the present invention and inventive concept thereof and replace or change, all should be encompassed within protection scope of the present invention.

Claims (3)

1. electrolytic seawater and the integrated marine exhaust multi-pollutant integrated conduct method of ultraviolet irradiation, is characterized in that having following steps:
S1, prepare liquor natrii hypochloritis by diaphragm-free electrolysis seawater method;
The waste liquid obtained after S2, seawater wet-treating flue gas mixes with described liquor natrii hypochloritis after isolation of purified process, regulates the pH value of described liquor natrii hypochloritis to be 5-6;
S3, the solution obtained in step S2 is carried out ultraviolet irradiation process, obtain the liquor natrii hypochloritis containing strong oxidizing property ROS;
S4, the described liquor natrii hypochloritis containing strong oxidizing property ROS to be mixed with pending flue gas, and generate high-valence state deleterious acidic pollutant soluble in water with pending harmful substances in flue gas generation gas liquid reaction;
S5, the flue gas containing high-valence state deleterious acidic pollutant soluble in water obtained after step S4 process and the acid waste liquid that obtains are by seawater wet-treating, and directly enter air after the gas cleaning obtained, the waste liquid obtained is through isolation of purified process.
2. processing method according to claim 1, it is characterized in that: in step S5, waste liquid is after isolation of purified process, for regulating the pH value of liquor natrii hypochloritis in fume treatment process next time, remainder arranges sea after a large amount of seawater dilution process, and the solid particulate matter obtained is stored in mud cabin.
3. an electrolytic seawater and the integrated marine exhaust multi-pollutant Integrated Processing Unit of ultraviolet irradiation, it is characterized in that: comprise main sea water pump, undivided cell, ultraviolet irradiation reactor, scrubbing tower and separation purifier, the input of described main sea water pump is communicated with Sea Chest suction inlet, described main sea water delivery side of pump is communicated with Sea Chest outlet, the branch road II being provided with the branch road I be communicated with the input of filter I between described main sea water delivery side of pump with described Sea Chest outlet and being communicated with the input of supply pump, the other end of described filter I is communicated with the input of described undivided cell, the output of described undivided cell is communicated with the input of described ultraviolet irradiation reactor by pH control valve,
The top of described scrubbing tower is provided with demister, exhaust opening is provided with above described demister, the bottom of described scrubbing tower is communicated with the input of described separation purifier, the sidewall bottom of described scrubbing tower is communicated with flue, be provided with spray equipment I in described flue, the input of described spray equipment I is communicated with the output of described ultraviolet irradiation reactor, is provided with spray equipment II in described scrubbing tower, the input of described spray equipment II is communicated with described supply delivery side of pump
The output of described separation purifier is communicated with described pH control valve by filter II, and described separation purifier is provided with the slag-drip opening be communicated with mud cabin and the leakage fluid dram be communicated with described Sea Chest outlet.
CN201510853706.7A 2015-11-30 2015-11-30 The marine exhaust multi-pollutant integrated conduct method and device that a kind of electrolytic seawater integrates with ultraviolet irradiation Expired - Fee Related CN105498490B (en)

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Cited By (7)

* Cited by examiner, † Cited by third party
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CN105879678A (en) * 2016-05-23 2016-08-24 大连海事大学 Comprehensive treatment method and device of waste gas of ship on basis of seawater electrolysis
CN106582274A (en) * 2016-12-15 2017-04-26 东南大学 Device and method for achieving photo-assisted electrochemical catalytic oxidation of oil fumes
CN108057344A (en) * 2018-01-15 2018-05-22 大连海事大学 A kind of wet type desulfurizing denitrating system and its process suitable for ship
CN109126458A (en) * 2018-09-19 2019-01-04 青岛双瑞海洋环境工程股份有限公司 Ship fume desulphurization method and device
CN109224859A (en) * 2018-10-10 2019-01-18 中船澄西船舶修造有限公司 A kind of ship tail gas processing system
CN113597411A (en) * 2019-03-14 2021-11-02 懿华水处理技术有限责任公司 Electrolyzer system configuration for enhanced ultraviolet advanced oxidation process
CN113786729A (en) * 2021-09-07 2021-12-14 安庆船用电器有限责任公司 Control box of marine auxiliary blower

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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105879678A (en) * 2016-05-23 2016-08-24 大连海事大学 Comprehensive treatment method and device of waste gas of ship on basis of seawater electrolysis
CN106582274A (en) * 2016-12-15 2017-04-26 东南大学 Device and method for achieving photo-assisted electrochemical catalytic oxidation of oil fumes
CN108057344A (en) * 2018-01-15 2018-05-22 大连海事大学 A kind of wet type desulfurizing denitrating system and its process suitable for ship
CN109126458A (en) * 2018-09-19 2019-01-04 青岛双瑞海洋环境工程股份有限公司 Ship fume desulphurization method and device
CN109224859A (en) * 2018-10-10 2019-01-18 中船澄西船舶修造有限公司 A kind of ship tail gas processing system
CN113597411A (en) * 2019-03-14 2021-11-02 懿华水处理技术有限责任公司 Electrolyzer system configuration for enhanced ultraviolet advanced oxidation process
CN113786729A (en) * 2021-09-07 2021-12-14 安庆船用电器有限责任公司 Control box of marine auxiliary blower
CN113786729B (en) * 2021-09-07 2023-09-08 安庆船用电器有限责任公司 Control box of marine auxiliary blower

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