CN102701394A - Method and device for processing ship ballast water by applying advanced electro catalysis oxidation - Google Patents
Method and device for processing ship ballast water by applying advanced electro catalysis oxidation Download PDFInfo
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Abstract
The invention discloses a method for processing ship ballast water by applying advanced electro catalysis oxidation. The method comprises the following steps of: applying a special catalyst electrode material; generating high-concentration hydroxyl free radicals in micro-current density through advanced electro catalysis oxidation in a ballast water body; and performing biochemical reaction of the hydroxyl free radicals and microorganism in the ballast water to cause oxidative stress damage of the microorganism in the ballast water and further stop life of the microorganism, wherein the biochemical reaction means biochemical processes such as lipid peroxidation of hydroxyl free radicals and the microorganism in the ballast water, oxygenolysis of amino acid, protein comformational change, DNA oxidation, cytochrome decoloration and the like. The device comprises a power supply, a catalytic tank, an electrode anode and an electrode cathode, wherein the electrode anode and the electrode cathode are arranged in the catalytic tank, are connected with the power supply and are made of high-efficiency electro catalysis materials. According to the method, reaction activity and reaction speed are high, poison reaction products cannot be produced, secondary pollution on environment is prevented, energy sources are saved, and requirements on low carbon and environment friendliness are met.
Description
Technical field
The present invention relates to the water treatment environmental technology field, especially a kind of method and apparatus of electrocatalysis high-grade oxidized Treatment of Ships'Ballast Water.
Technical background
External harmful organism invasion spreads through sex intercourse and is regarded as four one of threats greatly that the ocean faces by world's environmental protection fund (GEF), and ballast water for ship is to cause harmful organism to invade topmost route of transmission.Nearly 10,000,000,000 tons of the water ballast that annual global boats and ships carry, the ballast water yield that 100,000 tons of freighters of a load-carrying carry reaches ten thousand tons of 5-6, and 1.1 hundred million of the plant-animal of swimming are arranged in average every cubic metre of water ballast.Contain biological 3000-4000 kind in the water ballast of the whole world every day; Survival dinoflagellate spore has 300,000,000 approximately in a water ballast tank; 22500/cm3 plant plankton spore is arranged in the settling of the bilge, confirm that up to the present it is water-borne by ballast for cruising that 500 kinds of living species are arranged approximately.These biologies are lived in by different way in the water ballast and with water ballast and are invaded new zone; Uncontrollable " avalanche type " breeding will take place in case condition is suitable; The local biological food of their unbriddled plunders; And can cause harmful parasite and pathogenic agent big area rapidly to be propagated, even cause local species extinction.Because ordering about of scientific-technical progress and transportation of cargo hydroxyl Ji benefit, the shipping sail speed quickening has promoted the survival and the propagation of deleterious adventive species, and the eubiosis and the residents ' health of water area of port caused serious harm.
The catastrophic effect that external harmful organism invasion causes has caused global very big concern.The Environmental Protection Committee of International Maritime Organizaton (hereinafter to be referred as MEPC) has all attached great importance to the ballast for cruising water management since session in 1997 the 40th.MEPC has set up water ballast working group, sets about formulating " ballast water for ship and throw out control and management international convention " draft.In March, 2002, IMO general headquarters held the 47th environmental protection meeting in the London, discussed the Ballast Management problem.The suggestiveness international convention draft text of managing and monitoring about to ballast water for ship and throw out has been reviewed in meeting.Session has also convened the work group to carry out this work in a deep going way specially, has held IMO diplomacy conference, considers and adopts " ballast water for ship and throw out control and management international convention ".In February, 2004, general headquarters held " international Ballast Management conference " in IMO London, in current conference, had passed through " international shipping water ballast and throw out control and management contract (draft) ".
Because the harmful organism that water ballast causes invasion is the focal issue of a global concern; Many scholars have carried out a large amount of exploratory study work; Ship ballast water treatment method mainly contains mechanical process, physics method and chemical method or above-mentioned three kinds of methods combination at present; It is a focal issue that the whole world is paid close attention to that International Maritime Organizaton (IMO) points out to administer the invasion of ballast water for ship harmful organism; Do not advocate different regions and adopt different improvement systems to administer water ballast, its basic demand is: aboard ship handle; Cost is desirable, and equipment is small and exquisite, is convenient to operation; Nearshore waters, ocean environment is not formed new pollution; Treatment facility and operational safety, reliable.Therefore, all there is the problem that can not satisfy above-mentioned condition in existing method.
1, mechanical process
Mechanical process mainly contains methods such as filtration, rotational flow separation, deposition and flotation.Wherein filtering technique adopts membrane technology and corresponding device thereof mostly, filtering microorganism, planktonic organism and bacterium; This type technology needs higher pressure with device, and power consumption is big, for the big flow water body of quick mobile; Running cost is higher, and processing power is difficult to meet the demands; Cyclone separation process can be removed larger-size biology in the water ballast, but when the proportion of mikrobe and seawater was approaching, this method just was restricted; Deposition and flotation process were once done research at the theoretical side of water ballast, used but also be inappropriate on the ship at present.
2, physics method
The physics method mainly contains heat treated, ray technology, microwave technology etc.Wherein the heat treated method is to utilize the unnecessary heat of main frame to kill the mikrobe in the water ballast, and thermal treatment is feasible aspect health and safety, but the hot water ballast of discharging possibly cause the problem of environment aspect to public waters; Ray technology comprises ultraviolet technique and gamma-rays technology etc.Radiation effect through ray causes mikrobe integral part generation chemical reaction, reaches the effect of killing bacteria; Microwave technology comprises uses hyperacoustic various microwave technologies, but the quick big flow water body of mobile, existing ultrasonic processing apparatus; Except the problems referred to above; If adopt ultrasonic technique to handle separately, remain at the energy consumption height, running cost is high; Killing effect is difficult to unfavorable factors such as assurance, does not possess operability.
3, chemical method
The chemical method that is used for processing ballast at present has medical method, electrolytic seawater method, catalytic oxidation etc.U.S. Pat 2005016933 adopts adds ClO
2As biocide, this type device and technology do not have secondary pollution, in low discharge water body or tap water germicidal treatment, certain advantage are arranged, but handle for the sterilization algae removing of big flow water body such as water ballast or large watershed water body, and running cost is very high; The electrolytic seawater method is through electrolytic seawater, through the chlorine that on anode, produces, and then generates the hypochlorous acid with high-effective disinfecting and comes killing microorganisms and bacterium.International Application No. WO 2006058261 discloses a kind of ballast water processing and corresponding system, the disclosed electrolysis treatment water ballast of Japanese Patent JP2001000974 device that adopts electrolysis to produce hypochlorite; One Chinese patent application number 200510046991.8 disclosed water electrolytic treatment system of ballast for cruising in addition similarly are that the material with high oxidation activity (is mainly: ClO with cl ions, the water molecules electrolysis handled in the water body
-), cell, RNA, the DNA of bacterium in the water body and algae carried out oxygenizement, make its inactivation and death, thereby reach sterilization algae removal effect.Though the method for electrolytic seawater has sterilization effect preferably, after the employing electrolytic process kill bacteria, may produce the carcinogenic substance chloroform, can cause second environmental pollution.
Because the ship loading water ballast water yield is huge; From tens tphs per hour to several kilotons; And require the time of processing ballast short, and add the restriction of ocean environment and marine economy Sustainable development, the method (or medicament) of existing killing microorganisms can not meet the demands.
Summary of the invention
In order to solve the problems of the prior art, the purpose of this invention is to provide that a kind of reactive behavior is high, speed of response soon, does not produce toxic reaction product, can not cause secondary pollution, save energy, meet the method and apparatus of electrocatalysis high-grade oxidized Treatment of Ships'Ballast Water of the requirement of low-carbon environment-friendly environment.
For achieving the above object; The technique means of employing according to the invention is: a kind of method of electrocatalysis high-grade oxidized Treatment of Ships'Ballast Water; Its process is following: adopt special catalytic electrode material; In the water ballast water body, pass through electrocatalysis high-grade oxidized; Under little current density, produce the hydroxyl radical free radical of high density, biochemical reaction takes place in mikrobe in said hydroxyl radical free radical and the water ballast, causes the oxidative stress damage of water ballast mikrobe; And then its life is stopped, biological processes such as said biochemical reaction is meant that the lipid peroxidation of mikrobe in hydroxyl radical free radical and the water ballast, amino-acid oxidase decompose, the oxidation of protein conformation variation, DNA and cytopigment decolouring.
Further, the electrocatalytic reaction in the said water body mainly is:
Anode surface:
H 2 O+h + → OH-Cat+H + (I)
OH-?+?h + →·OH-Cat ?············?（Ⅱ）
Cathode surface:
O 2 + e - → O 2 - (III)
H 2 O?+?O 2 - →·OOH?+?OH - ············?（Ⅳ）
Superoxide radical and water reaction produce ydrogen peroxide 50 and hydroxide ion
·OOH?+?H 2 O?+?e - →?H 2 O 2? +?OH - ··········（Ⅴ）
Ydrogen peroxide 50 continues reaction
H 2 O 2 ?+?e - →·OH?+?OH - ·············?（Ⅵ）
In containing the water body of cl ions, continue reaction
Cl - ?+?·OH →?ClO - ?+?H + ···········?（Ⅶ）
The oxidizing substance that catalyzed reaction produces
OH, OOH, H 2 O 2, ClO - , be mikrobe to be carried out oxidation make its inactivation and dead effective constituent.
Further, said lipid peroxidation is meant: hydroxyl radical free radical combines the lipid in the biological cell membrane in the water ballast, makes the peroxo-of cytolemma lipid and causes the fragmentation of film, and cell content leaks, and causes the process of necrocytosis; Lipid in the said cytolemma mainly is meant phosphatide, and mainly is glycerophospholipids (phosphoglycerides) in the phosphatide; Generally contain saturated in the glyceryl phosphatide molecule and each a part of unsaturated fatty acids, the fat bond rupture takes place in this structure easily under the effect of hydroxyl, and series reaction such as undersaturated fatty acid carbons splitting of chain are shown below:
Contain unsaturated link(age) in the-R2 chain, hydroxyl is shown below wherein unsaturated link(age) oxidation:
The reaction glyceryl phosphatide carboxylic acid decarboxylation of decomposing out the most at last generates CO
2And H
2O.
Further, said amino-acid oxidase decomposition is meant: but hydroxyl radical free radical direct oxidation modified amino acid is shown below:
Protein is formed by connecting through peptide bond in amino acid; It is the most important material of function of earning a bare living; Almost all amino acid of constitutive protein matter are all responsive to the modification of hydroxyl; But degree is different, and methionine(Met), tyrosine, tryptophane, proline(Pro), halfcystine and phenylalanine(Phe) etc. receive attack and the oxidation of hydroxyl, the also oxidable modified amino acid of one of product of lipid peroxidation mda the most easily.
Further, said protein conformation change is meant: hydroxyl radical free radical makes the peptide bond rupture, makes protein denaturation; Some amino acid have the sulphydryl activity group (SH); The disulfide linkage that it forms is the important chemical combination key that protein is kept conformation; Hydroxyl radical free radical makes the disulfide linkage oxidation scission, has changed proteinic space conformation, causes protein denaturation or enzyme to lose activity; The vital movement of mikrobe in the water ballast is stopped, and the fracture of disulfide linkage is shown below:
Further; Said DNA oxidative damage is meant: addition reaction takes place in hydroxyl radical free radical and DNA; Cause base substitution, the base of dna structure to be lost, variation such as splitting of chain, base or sugar and phosphoric acid form chemical lesion after receiving hydroxyl radicals attack in the dna molecular, coup injury takes place after receiving hydroxyl radicals attack in DNA; Influence dna structure and function, caused necrocytosis.
Further, said cytopigment decolouring is meant: hydroxyl radical free radical makes the cytopigment decolouring of ocean unit cell algae, again can't carry out photosynthetic assimilation process.
Realize the method equipment therefor of above-mentioned electrocatalysis high-grade oxidized Treatment of Ships'Ballast Water, comprise power supply, catalysis groove, be installed in the electrode anode and the electrode cathode that are connected with power supply in the catalysis groove; Said electrode anode is selected anode catalysis material for use, and said electrode cathode is selected the cathode catalysis material for use; Bath voltage during said power work is arranged between the 0.5-20V.
Further, said electrode anode is processed by titanium-base and the anode coating that is coated on the titanium-base, and said anode coating is that the one or more combination oxidation in titanium, gold, platinum, tungsten, silver, ruthenium, iridium, tin, antimony, the rare earth is processed; Said electrode cathode is processed by titanium-base and the cathode that is coated on the titanium-base, and said cathode is that the one or more combination oxidation in titanium, gold, tungsten, silver, aluminium, thallium, the rare earth is processed.
Further; Electrode anode and electrode cathode mounting arrangements mode have two kinds in the said catalysis groove: K-A-negative electrode, negative electrode-target-anode; Electrode anode and electrode cathode be arranged in parallel and two electrodes between spacing be 3-20mm, said target refers to that the two sides scribbles the electrode of anode catalysis material and cathode catalysis material respectively.
Beneficial effect of the present invention is: strong oxidizing property substance reactions such as hydroxyl radical free radical are active high, and speed of response is fast, does not produce toxic reaction product; Can not cause secondary pollution, and the strong oxidizing property material rate of decay such as hydroxyl radical free radical is fast to environment, need not add during the water ballast unloading extra neutrality material come in and oxygenant; Bath voltage is between 0.5-20V, and low pressure operation cuts down the consumption of energy; Save energy meets the requirement of low-carbon environment-friendly.
Description of drawings
Below in conjunction with accompanying drawing technical scheme of the present invention is described.
Fig. 1 is the electrocatalysis high-grade oxidized reaction principle figure of the present invention;
Fig. 2 is apparatus of the present invention electrocatalysis groove synoptic diagram;
Fig. 3 is that synoptic diagram is arranged in the parallel connection of apparatus of the present invention electrocatalysis groove;
Fig. 4 is the arranged in series synoptic diagram of apparatus of the present invention electrocatalysis groove.
Among the figure: 201, electrode anode, 202, electrode cathode, 203, anode coating, 204, cathode.
Embodiment
A kind of method of electrocatalysis high-grade oxidized Treatment of Ships'Ballast Water; Its process is following: adopt special catalytic electrode material; In the water ballast water body, pass through electrocatalysis high-grade oxidized; Under little current density, produce the hydroxyl radical free radical of high density, biochemical reaction takes place in mikrobe in said hydroxyl radical free radical and the water ballast, causes the oxidative stress damage of water ballast mikrobe; And then its life is stopped, biological processes such as said biochemical reaction is meant that the lipid peroxidation of mikrobe in hydroxyl radical free radical and the water ballast, amino-acid oxidase decompose, the oxidation of protein conformation variation, DNA and cytopigment decolouring.
As shown in Figure 1, special semi-conductor catalysis electrode produces " hole " effect under effect of electric field, when promptly special semi-conductor catalysis electrode is in the electric field of certain intensity; Its valence band electronics can be crossed the forbidden band and get into conduction band; On valence band, form electricity simultaneously and swash the hole, there is the ability of very strong trapped electron in the hole, in water, has the OH-of a large amount of ionic conditions; In the electrocatalysis oxidation reaction that in water, takes place, OH-loses the OH that electronics generates strong oxidizing property.
Further, the electrocatalytic reaction in the said water body mainly is:
Anode surface:
H 2 O+h + → OH-Cat+H + (I)
OH-?+?h + →·OH-Cat ?············?（Ⅱ）
Cathode surface:
O 2 + e - → O 2 - (III)
H 2 O?+?O 2 - →·OOH?+?OH - ············?（Ⅳ）
Superoxide radical and water reaction produce ydrogen peroxide 50 and hydroxide ion
·OOH?+?H 2 O?+?e - →?H 2 O 2? +?OH - ··········（Ⅴ）
Ydrogen peroxide 50 continues reaction
H 2 O 2 ?+?e - →·OH?+?OH - ·············?（Ⅵ）
In containing the water body of cl ions, continue reaction
Cl - ?+?·OH →?ClO - ?+?H + ···········?（Ⅶ）
The oxidizing substance that catalyzed reaction produces
OH, OOH, H 2 O 2, ClO - , be mikrobe to be carried out oxidation make its inactivation and dead effective constituent.
The staple of the plant-animal that swim, bacterium, vibrios and spore etc. in the ballast water for ship is: carbohydrate, lipid, protein, nucleic acid and the enzyme etc. that the intravital biochemical reaction of biology is played catalysis and regulating effect, biological processes such as the lipid peroxidation of mikrobe, amino-acid oxidase decompose in hydroxyl radical free radical and the water ballast, protein conformation changes, the oxidation of DNA and cytopigment decolouring.
Further, said lipid peroxidation is meant: hydroxyl radical free radical combines the lipid in the biological cell membrane in the water ballast, makes the peroxo-of cytolemma lipid and causes the fragmentation of film, and cell content leaks, and causes the process of necrocytosis; Lipid in the said cytolemma mainly is meant phosphatide, and mainly is glycerophospholipids (phosphoglycerides) in the phosphatide; Generally contain saturated in the glyceryl phosphatide molecule and each a part of unsaturated fatty acids, the fat bond rupture takes place in this structure easily under the effect of hydroxyl, and series reaction such as undersaturated fatty acid carbons splitting of chain are shown below:
Contain unsaturated link(age) in the-R2 chain, hydroxyl is shown below wherein unsaturated link(age) oxidation:
The reaction glyceryl phosphatide carboxylic acid decarboxylation of decomposing out the most at last generates CO
2And H
2O.
Further, said amino-acid oxidase decomposition is meant: but hydroxyl radical free radical direct oxidation modified amino acid is shown below:
Protein is formed by connecting through peptide bond in amino acid; It is the most important material of function of earning a bare living; Almost all amino acid of constitutive protein matter are all responsive to the modification of hydroxyl; But degree is different, and methionine(Met), tyrosine, tryptophane, proline(Pro), halfcystine and phenylalanine(Phe) etc. receive attack and the oxidation of hydroxyl, the also oxidable modified amino acid of one of product of lipid peroxidation mda the most easily.
Further, said protein conformation change is meant: hydroxyl radical free radical makes the peptide bond rupture, makes protein denaturation; Some amino acid have the sulphydryl activity group (SH); The disulfide linkage that it forms is the important chemical combination key that protein is kept conformation; Hydroxyl radical free radical makes the disulfide linkage oxidation scission, has changed proteinic space conformation, causes protein denaturation or enzyme to lose activity; The vital movement of mikrobe in the water ballast is stopped, and the fracture of disulfide linkage is shown below:
Further; Said DNA oxidative damage is meant: addition reaction takes place in hydroxyl radical free radical and DNA; Cause base substitution, the base of dna structure to be lost, variation such as splitting of chain, base or sugar and phosphoric acid form chemical lesion after receiving hydroxyl radicals attack in the dna molecular, coup injury takes place after receiving hydroxyl radicals attack in DNA; Influence dna structure and function, caused necrocytosis.
Further, said cytopigment decolouring is meant: hydroxyl radical free radical makes the cytopigment decolouring of ocean unit cell algae, again can't carry out photosynthetic assimilation process.
The method equipment therefor of the above-mentioned electrocatalysis high-grade oxidized Treatment of Ships'Ballast Water of realization as shown in Figure 2 comprises power supply and the electrode anode that is connected with power supply 201, electrode cathode 202; Said electrode anode 201 is selected efficient electrocatalysis material for use, and electrode cathode 202 is selected the cathode catalysis material for use; Bath voltage during said power work is arranged between the 0.5-20V, and electrode anode 201 produces the strong oxidizing property material simultaneously with electrode cathode 202 in the polar region, and negative electrode is not separated out the by product hydrogen with explosion risk.
Further, said electrode anode 201 is processed by titanium-base and the anode coating 203 that is coated on the titanium-base, and said anode coating 203 is that the one or more combination oxidation in titanium, gold, platinum, tungsten, silver, ruthenium, iridium, tin, antimony, the rare earth is processed; Said electrode cathode 202 is processed by titanium-base and the cathode 204 that is coated on the titanium-base, and said cathode 204 is that the one or more combination oxidation in titanium, gold, tungsten, silver, aluminium, thallium, the rare earth is processed.
Preferred two kinds of the mounting arrangements mode of the electrode in the electrocatalysis groove:
As shown in Figure 3; Electrode anode 201 in the electrocatalysis groove is arranged according to the mode of K-A-negative electrode with electrode cathode 202; Electrode anode 201 and electrode cathode 202 be arranged in parallel and two electrodes between spacing be 3-20mm, the terminal stud of electrode anode 201 is all connected together, the terminal stud of electrode cathode 202 is all connected together; And the lead of electrode anode 201 is connected to the positive pole of power supply, the lead of electrode cathode 202 is connected to the negative pole of power supply;
As shown in Figure 4; Electrode anode 201 in the electrocatalysis groove is arranged in the electrocatalysis groove according to negative electrode-target-anodic mode with electrode cathode 202; Electro catalytic electrode be arranged in parallel and two electrodes between spacing be 3-20mm; Wherein target is the titanium-base that the two sides scribbles anode coating 203 and cathode 204 respectively, and the terminal stud of electrode anode 201 is connected to the positive pole of power supply, and the terminal stud of electrode cathode 202 is connected to the negative pole of power supply.
Claims (10)
1. the method for an electrocatalysis high-grade oxidized Treatment of Ships'Ballast Water; It is characterized in that; Process is following: adopt special catalytic electrode material, in the water ballast water body, through electrocatalysis high-grade oxidized, under little current density, produce the hydroxyl radical free radical of high density; Biochemical reaction takes place in mikrobe in said hydroxyl radical free radical and the water ballast; Cause the oxidative stress damage of water ballast mikrobe, and then its life is stopped, biological processes such as said biochemical reaction is meant that the lipid peroxidation of mikrobe in hydroxyl radical free radical and the water ballast, amino-acid oxidase decompose, the oxidation of protein conformation variation, DNA and cytopigment decolouring.
2. the method for electrocatalysis high-grade oxidized Treatment of Ships'Ballast Water according to claim 1, it is characterized in that: the electrocatalytic reaction in the said water body mainly is:
Anode surface:
H 2 O+h + → OH-Cat+H + (I)
OH-?+?h + →·OH-Cat ?············?（Ⅱ）
Cathode surface:
O 2 + e - → O 2 - (III)
H 2 O?+?O 2 - →·OOH?+?OH - ············?（Ⅳ）
Superoxide radical and water reaction produce ydrogen peroxide 50 and hydroxide ion
·OOH?+?H 2 O?+?e - →?H 2 O 2? +?OH - ··········（Ⅴ）
Ydrogen peroxide 50 continues reaction
H 2 O 2 ?+?e - →·OH?+?OH - ·············?（Ⅵ）
In containing the water body of cl ions, continue reaction
Cl - ?+?·OH →?ClO - ?+?H + ···········?（Ⅶ）
The oxidizing substance that catalyzed reaction produces
OH, OOH, H 2 O 2 , ClO - , be mikrobe to be carried out oxidation make its inactivation and dead effective constituent.
3. the method for electrocatalysis high-grade oxidized Treatment of Ships'Ballast Water according to claim 1; It is characterized in that: said lipid peroxidation is meant: hydroxyl radical free radical combines the lipid in the biological cell membrane in the water ballast; Make the peroxo-of cytolemma lipid and cause the fragmentation of film; Cell content leaks, and causes the process of necrocytosis; Lipid in the said cytolemma mainly is meant phosphatide, and mainly is glycerophospholipids in the phosphatide; Generally contain saturated in the glyceryl phosphatide molecule and each a part of unsaturated fatty acids, the fat bond rupture takes place in this structure easily under the effect of hydroxyl, and series reaction such as undersaturated fatty acid carbons splitting of chain are shown below:
Contain unsaturated link(age) in the-R2 chain, hydroxyl is shown below wherein unsaturated link(age) oxidation:
The reaction glyceryl phosphatide carboxylic acid decarboxylation of decomposing out the most at last generates CO
2And H
2O.
4. the method for electrocatalysis high-grade oxidized Treatment of Ships'Ballast Water according to claim 1 is characterized in that: said amino-acid oxidase decomposes and is meant: but hydroxyl radical free radical direct oxidation modified amino acid is shown below:
Protein is formed by connecting through peptide bond in amino acid; It is the most important material of function of earning a bare living; Almost all amino acid of constitutive protein matter are all responsive to the modification of hydroxyl; But degree is different, and methionine(Met), tyrosine, tryptophane, proline(Pro), halfcystine and phenylalanine(Phe) etc. receive attack and the oxidation of hydroxyl, the also oxidable modified amino acid of one of product of lipid peroxidation mda the most easily.
5. the method for electrocatalysis high-grade oxidized Treatment of Ships'Ballast Water according to claim 1 is characterized in that: said protein conformation changes and is meant: hydroxyl radical free radical makes the peptide bond rupture, makes protein denaturation; Some amino acid have the sulphydryl activity group (SH); The disulfide linkage that it forms is the important chemical combination key that protein is kept conformation; Hydroxyl radical free radical makes the disulfide linkage oxidation scission, has changed proteinic space conformation, causes protein denaturation or enzyme to lose activity; The vital movement of mikrobe in the water ballast is stopped, and the fracture of disulfide linkage is shown below:
6. the method for electrocatalysis high-grade oxidized Treatment of Ships'Ballast Water according to claim 1; It is characterized in that: said DNA oxidative damage is meant: addition reaction takes place in hydroxyl radical free radical and DNA; Cause base substitution, the base of dna structure to be lost, variation such as splitting of chain, base or sugar and phosphoric acid form chemical lesion after receiving hydroxyl radicals attack in the dna molecular, coup injury takes place after receiving hydroxyl radicals attack in DNA; Influence dna structure and function, caused necrocytosis.
7. the method for electrocatalysis high-grade oxidized Treatment of Ships'Ballast Water according to claim 1 is characterized in that: said cytopigment decolouring is meant: hydroxyl radical free radical makes the cytopigment decolouring of ocean unit cell algae, again can't carry out photosynthetic assimilation process.
8. the method equipment therefor of an electrocatalysis high-grade oxidized Treatment of Ships'Ballast Water comprises power supply, catalysis groove, is installed in the electrode anode (201) and the electrode cathode (202) that are connected with power supply in the catalysis groove; Said electrode anode (201) is selected anode catalysis material for use, and said electrode cathode (202) is selected the cathode catalysis material for use; Bath voltage during said power work is arranged between the 0.5-20V.
9. the method equipment therefor of electrocatalysis high-grade oxidized Treatment of Ships'Ballast Water according to claim 8; It is characterized in that: said electrode anode (201) is processed by titanium-base and the anode coating (203) that is coated on the titanium-base, and said anode coating (203) is that the one or more combination oxidation in titanium, gold, platinum, tungsten, silver, ruthenium, iridium, tin, antimony, the rare earth is processed; Said electrode cathode (202) is processed by titanium-base and the cathode (204) that is coated on the titanium-base, and said cathode (204) is that the one or more combination oxidation in titanium, gold, tungsten, silver, aluminium, thallium, the rare earth is processed.
10. the method equipment therefor of electrocatalysis high-grade oxidized Treatment of Ships'Ballast Water according to claim 8; It is characterized in that: electrode anode (201) and electrode cathode (202) mounting arrangements mode have two kinds in the said catalysis groove: K-A-negative electrode, negative electrode-target-anode; Electrode anode (201) and electrode cathode (202) be arranged in parallel and two electrodes between spacing be 3-20mm, said target refers to that the two sides scribbles the electrode of anode catalysis material and cathode catalysis material respectively.
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| CN104030413A (en) * | 2014-05-17 | 2014-09-10 | 曹学良 | Treatment device for electrocatalytic oxidation of ship domestic sewage and method thereof |
| CN104043327A (en) * | 2014-06-21 | 2014-09-17 | 曹学良 | Ship tail gas electro-catalysis system |
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| CN105967280A (en) * | 2016-05-25 | 2016-09-28 | 安徽普氏生态环境工程有限公司 | Method for degrading COD in sewage by using rare-earth-doped graphene electrode |
| CN108264134A (en) * | 2018-01-25 | 2018-07-10 | 石家庄市源生园环保有限公司 | A kind of high-COD waste water electrolysis electrode with high salt and electrolytic oxidation process method |
| CN109789917A (en) * | 2016-09-23 | 2019-05-21 | 懿华水处理技术有限责任公司 | Ballast water treatment and neutralization |
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| CN109789917A (en) * | 2016-09-23 | 2019-05-21 | 懿华水处理技术有限责任公司 | Ballast water treatment and neutralization |
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