CN102963963A - Electrolyzed oxidizing sterilizing water with low corrosiveness and preparation method thereof - Google Patents
Electrolyzed oxidizing sterilizing water with low corrosiveness and preparation method thereof Download PDFInfo
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- CN102963963A CN102963963A CN2012103570506A CN201210357050A CN102963963A CN 102963963 A CN102963963 A CN 102963963A CN 2012103570506 A CN2012103570506 A CN 2012103570506A CN 201210357050 A CN201210357050 A CN 201210357050A CN 102963963 A CN102963963 A CN 102963963A
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Abstract
The invention relates to the sterilization and disinfection field, especially to electrolyzed oxidizing sterilizing water with low corrosiveness and a preparation method thereof. The preparation method of the electrolyzed oxidizing sterilizing water with low corrosiveness provided in the invention comprises the steps of: (1) providing unit A able to produce hydrogen ions; (2) providing unit B containing available chlorine or being able to produce available chlorine; and (3) mixing the unit A with the unit B to obtain an acidic and strong oxidizing solution, which has a pH value of 2-7, an oxidation reduction potential of not less than 700mV, an available chlorine content of 3-3000mg/L, and a ferric ion content of not greater than 1500mg/L. Compared with the existing electrolyzed oxidizing water, the electrolyzed oxidizing sterilizing water provided in the invention can reduce the corrosiveness on metals, thus having an expanded application range.
Description
Technical field
The present invention relates to the sterilization and disinfection field, particularly acid oxidation potential sterilized water of a kind of low-corrosiveness and preparation method thereof.
Background technology
The concept of introducing redox potential in the sterilization field is to come from the acidic oxidized electric potential water generation machine of Japanese 20th century development and production eighties and the acidic oxidized electric potential water that is produced by the generation machine.Acidic oxidized electric potential water (is called for short: the water of EOW) refer to have high redox potential (ORP), low pH value characteristic and lower concentration available chlorine (ACC).
The mechanism of acidic oxidized electric potential water sterilization is as follows:
At first, because the microorganism of the most of kinds of occurring in nature lives in the environment of pH 4-9, and the pH value of acidic oxidized electric potential water can affect electric charge on the microbial biofilm and the absorption of nutriment, the activity of enzyme, and the toxicity of giving property or objectionable impurities of nutriment in the change environment, thereby reach the purpose of killing microorganisms.
Secondly, because the distributions inside and outside microbial biofilm such as hydrogen ion, potassium ion, sodium ion are different, so that the inside and outside current potential of film has certain potential difference when reaching running balance, generally be about-700～+ 900mV.The microbial film of aerobic bacteria inside and outside potential difference be generally+200～+ 800mV, and the microbial film of anaerobic bacterium inside and outside potential difference be generally-700～+ 200mV.The factors such as the oxidation in the acidic oxidized electric potential water, reducing substance and pH make its ORP be higher than 1100mV, have exceeded the scope of microorganism.Having high ORP(is ORP〉1100mV) EOW contact microorganism after capture rapidly electronics, disturb the microbial film balance, change biological transmembrane potential difference, the inside and outside osmotic pressure of film, the destruction that causes the enhancing of microbial film permeability, cellular swelling and cellular metabolism enzyme, make intracellular organic matter overflow, dissolve, thereby reach the purpose of quick killing microorganisms.
At last, available chlorine can make the permeability of cell change, or microbial film generation mechanicalness is broken, and impels the cell Dissolve things inside outwards to ooze out, and causes bacterium dead.And hypochlorous acid is neutral small-molecule substance, easily invades in the cell with protein generation oxygenizement or destroys its phosphate dehydrogenase, makes the carbohydrate metabolism imbalance cause bacterium dead, thereby reaches the purpose of killing microorganisms.
The sterilizing ability of EOW system is to take as the leading factor with ACC, and low pH value and high ORP are the synergistic result of three of important promotion.This systematic collaboration effect far above single ACC, low pH value and high ORP effect simply add and, its ACC is higher, the pH value is lower, ORP is higher, the system synthesis sterilising effect is just better.
But existing acid oxidation potential sterilized water has general metal protection.
Summary of the invention
The first purpose of the present invention is to provide a kind of preparation method of acid oxidation potential sterilized water of low-corrosiveness, has the technical matters of general metal protection to solve acid oxidation potential sterilized water of the prior art.
The second purpose of the present invention is to provide a kind of acid oxidation potential sterilized water of low-corrosiveness, has the technical matters of general metal protection to solve acid oxidation potential sterilized water of the prior art.
The object of the invention is achieved through the following technical solutions:
A kind of preparation method of acid oxidation potential sterilized water of low-corrosiveness may further comprise the steps:
(1) provides and to produce hydrionic A unit;
(2) provide the B unit that contains available chlorine or can produce available chlorine;
(3) described A unit is mixed with described B unit, obtain acid strong oxidizing property solution, the pH value of described acid strong oxidizing property solution is between 2-7, and its redox potential is not less than 700mV, its available chlorine content is 3-3000mg/L, and its ferric ion content is not higher than 1500mg/L.
Preferably, in step (1), also comprise: described A unit is carried out pre-treatment.
Preferably, in step (2), also comprise: described B unit is carried out pre-treatment.
Preferably, in step (3), also comprise: the mixed mixed solution in described A unit and described B unit is carried out aftertreatment.
Preferably, the method for described processing can be selected from one or several in adding ferric ion deactivator, membrane separation process, electrochemical process, chromatography, absorption method or the ion exchange method, to remove the part ferric ion.
Preferably, described A unit is acid.
Preferably, described B contains the unit one or more in double salt, chlorite or the available chlorine precursor substance of liquid chlorine, dioxide peroxide, hypochlorite, hypochlorite, and described available chlorine precursor substance refers to can generate with acid or water reaction the chlorine-bearing compound of available chlorine.
Preferably, described B unit is neutral or alkaline.
A kind of acid oxidation potential sterilized water of low-corrosiveness comprises the A unit and the B unit that use front independent packing, and described A unit is for can produce hydrionic preparation; Described B unit is the preparation that contains available chlorine or can produce available chlorine, described A unit with obtain acid strong oxidizing property solution after described B unit mixes, the pH value of described acid strong oxidizing property solution is between 2-7, its redox potential is not less than 700mV, its available chlorine content is 3-3000mg/L, and its ferric ion content is not higher than 1500mg/L.
Preferably, described B contains the unit one or more in double salt, chlorite or the available chlorine precursor substance of liquid chlorine, dioxide peroxide, hypochlorite, hypochlorite, and described available chlorine precursor substance refers to can generate with acid or water reaction the chlorine-bearing compound of available chlorine.
Preferably, described B unit is neutral or alkaline.
A kind of acid oxidation potential sterilized water of low-corrosiveness, the pH value of described sterilized water is between 2-7, and its redox potential is not less than 700mV, and its available chlorine content is 3-3000mg/L, and its ferric ion content is not higher than 1500mg/L.
Preferably, contain one or several of mineral acid, organic acid, strong acid weak base salt, strong base-weak acid salt, weak acid and weak base salt or strong acid and strong base salt in the described sterilized water.
Preferably, available chlorine in the described sterilized water is by one or more generations of double salt, chlorite or the available chlorine precursor substance of liquid chlorine, dioxide peroxide, hypochlorite, hypochlorite, and described available chlorine precursor substance refers to can generate with acid or water reaction the chlorine-bearing compound of available chlorine.
Compare with existing acid oxidation potential sterilized water, the present invention has following advantage:
1, acid oxidation potential sterilized water of the present invention can reduce corrosion of metal, thereby has enlarged range of application;
2, before use, A unit and the B unit of acid oxidation potential sterilized water of the present invention are deposited separately, in the time will using, A unit and B unit are mixed again, and have solved the storage problem of acid oxidation potential sterilized water, and be very easy to use;
3, in the process of preparation acid oxidation potential sterilized water of the present invention, strengthen artificial controllability, can regulate according to the actual requirements pH value, available chlorine content and the redox potential of sterilized water.
Description of drawings
Fig. 1 is in the sour environment, and ferric ion content is to the synoptic diagram of the corrosive effect of carbon steel;
Fig. 2 is the acidic oxidation environment, and available chlorine and ferric ion synergy are to the synoptic diagram of the corrosive effect of carbon steel;
Fig. 3 is the acidic oxidation environment, and pH and ferric ion synergy are to the synoptic diagram of the corrosive effect of carbon steel;
Fig. 4 is that the hybrid mode of A different in the acidic oxidized electric potential water, B unit is to the synoptic diagram of the corrosive effect of carbon steel.
Embodiment
Below describe the present invention.
At present, the acid oxidation potential sterilized water has launched preliminary study to corrosion of metal, and the result who has announced shows that acidic oxidized electric potential water has general metal protection.But its corrosive research on mechanism is not carried out, and its corrodibility is considered to usually that peracid acidity (pH2-3) causes, even thinks that nearly neutral electrolyzed oxidizing water can avoid metal protection.
The result who has announced shows acidic oxidized electric potential water, and substantially without corrosion or mild corrosion, to heavy corrosion, its conclusion otherness is very large to carbon steel, copper, aluminium moderate to stainless steel.
Acidic oxidized electric potential water mainly is that three aspect factor causes to corrosion of metal, the one, and the acidity of system, the replacing hydrogen reaction of hydrogen ion and active metal (iron, magnesium, zinc etc.); The 2nd, the oxidisability of system (available chlorine); The 3rd, the impact of other ion in the system.But acid and oxidisability is the physics and chemistry speciality of acidic oxidized electric potential water, also is the determinative of bactericidal property, and therefore, in a sense, bactericidal property and corrosion of metal are the paradox of coexistence.
Compare with electrolytic process, chemical method prepares acid oxidation potential solution, and by calculating the component concentration that can control in the solution, the Material Source of its A, B unit is wider general.But also caused the source of the impurity of introducing in the solution more complicated.
Discuss in the present invention ferric ion (Fe
3+) in the acidic oxidation environment to iron, copper and Corrosion of Al.
Chemical method prepares acid oxidation potential solution, Fe in the system
3+Introducing mainly contain three kinds of approach, one itself contains in the acid-base modifier or produces ferric ion, such as iron(ic) chloride or ferric sulfate or ironic hydroxide etc.; Its two, use and carry ferrous contaminants in the raw material secretly; Its three, contain the component of other effects of ferric ion, such as thickening material, stablizer, reinforcer etc.
The equipment of iron content material and container (such as glass reinforced plastic, carbon steel and the stainless steel) widespread use in reality makes the raw materials such as acid, alkali, available chlorine inevitably pollute certain ferric ion in production, transportation, storage process.As, the industrial burning in hydrogen with chlorine generates hydrogenchloride, and employed steel incendiary pencil and high-temperature chlorine solid/liquid/gas reactions generate ferric ion.As, during the industrial production high amount of acids, concentrated acid contacts with iron content equipment.That carry secretly in the raw materials for production or itself be exactly the raw material of iron content, increased especially the amount of ferric ion.As, (tap water, well water, river or the above-mentioned water that simply purified) contains ferric ion in the employed water.As, production of sulfur from pyrite acid contains iron ore dust is dissolved in has increased ferric ion in the acid content.
Because the ubiquity of ferric ion, multi-source (approach 1-3) and inevitable property (approach 2) so the ferric ion content in the single a certain source of restriction has little significance, also are unscientific simultaneously.Therefore be the ferric ion content that defines under the final state among the present invention, i.e. A, the mixed ferric ion content in B unit.Because what finally produce effect (such as bactericidal property, metal protection) is A, B unit mixed solution, but not A unit or B unit.
Ferric ion is undertaken by following basic mode corrosion of metal,
Fe+2Fe
3+=3Fe
2+ ———1
Cu+2Fe
3+=Cu
2++2Fe
2+———2
Al+3Fe
3+=Al
3++3Fe
2+———3
Fe
2++[O]=Fe
3+ ———4
In normal temperature, neutrality and non-oxidizable solution, the reaction 4 be slowly, above-mentioned serial reaction can be understood as simple Fe
3+Corrosive effect depend on Fe
3+Initial content (reaction 1,2,3), work as Fe
3+When running out, corrosion process finishes.Fe
3+Content when relatively stable, its corrosive effect changes little, perhaps the corrosive effect that slowly carries out along with reaction 4 slowly strengthens.
In acidic oxidized electric potential water, the environment of the introducing of available chlorine and low pH has accelerated to react 4 carrying out, and has promoted metal and Fe
3+Direct product Fe
2+Again change Fe into
3+, reduced Fe
3+Reduction, thereby make Fe in the system
3+Content in to copper, aluminium corrosion process, remain on certain high level or to iron rot the time, continue to increase state, and then aggravated reaction and 1,2,3 carried out.
As from the foregoing, contain the acidic oxidized electric potential water of ferric ion, ferric ion and hydrogen ion and available chlorine interact, and the system that affected greatly is to corrosion of metal.
See also Fig. 1, show among the figure: in the acid system, the decline of hydrogen ion concentration makes system descend to some extent to corrosion of metal.Simultaneously as can be known, the adding of ferric ion and content increase have increased system to corrosion of metal.Simultaneously as can be known, hydrogen ion and ferric ion synergy have strengthened system to corrosion of metal.
See also Fig. 2, show among the figure: in the system of acidic oxidation (containing ACC), ferric ion and available chlorine synergy, the system that affected greatly makes system to corrosion of metal generation hop to corrosion of metal.Wherein, the increase of available chlorine content (＞3000ppm), the increase of ferric ion content (＞1500ppm), all can produce the hop to corrosion of metal.Simultaneously as can be known, the reduction of available chlorine makes system to the corrosion of metal reduction, and has reduced the significance of hop.
See also Fig. 3, show among the figure: in the system of acidic oxidation (containing ACC), different sour environment (pH2-7), the increase of ferric ion concentration (＞1500ppm), all can produce the hop to corrosion of metal.Simultaneously as can be known, acid reduction makes system to the corrosion of metal reduction, and has reduced the significance of hop.
Comparison diagram 1-Fig. 3 as can be known, the metal protection of acid oxidation potential sterilized water can be controlled or reduce to control ferric ion content at 3-3000ppm, at 0-1500ppm and available chlorine content.
We know that free chlorine or its derivative can strengthen oxidisability and the bactericidal property of system.The A unit is added the B unit, can reduce to a certain extent the oxidisability of mixed solution, reduced simultaneously the risk of the security of the free chlorine band of gas.Therefore, preferentially take the A unit is added the addition manner of B unit.As shown in Figure 4, the hybrid mode by control A, B unit adds the B unit with the A unit, can to a certain degree reduce corrosion of metal.The A unit is added the B unit, can take disposable adding or add in batches or slowly add or spray to add or the dropping mode.
The invention provides a kind of preparation method of acid oxidation potential sterilized water of low-corrosiveness, may further comprise the steps:
(1) provides and to produce hydrionic A unit;
(2) provide the B unit that contains available chlorine or can produce available chlorine;
(3) the A unit is mixed with the B unit, obtain acid strong oxidizing property solution, the pH value of acid strong oxidizing property solution is between 2-7, and its redox potential is not less than 700mV, and its available chlorine content is 3-3000mg/L, and its ferric ion content is not higher than 1500mg/L.
The present invention also provides a kind of acid oxidation potential sterilized water of low-corrosiveness, comprises A unit and the B unit of independent packing before using, and the A unit is for can produce hydrionic preparation; The B unit is the preparation that contains available chlorine or can produce available chlorine, the A unit with obtain acid strong oxidizing property solution after the B unit mixes, the pH value of acid strong oxidizing property solution is between 2-7, its redox potential is not less than 700mV, its available chlorine content is 3-3000mg/L, and its ferric ion content is not higher than 1500mg/L.
The pH value of A unit is preferably between 0-7, is preferably again between 1-6, is preferably between 1-5 again, also is preferably between 2-4, most preferably is between 2-3.
The A unit can be selected from one or several of precursor of mineral acid, organic acid, strong acid weak base salt or acidic substance.Mineral acid can be selected from hydrochloric acid, Hydrogen bromide, hydroiodic acid HI, sulfuric acid, nitric acid, chloric acid, perchloric acid, bromic acid, hyperbromic acid, metaperiodic acid, metaphosphoric acid, permanganic acid, hydrogen borate, the acid of hydrogen astatine, hydrogen telluric acid, the folded acid iodide of hydrogen, silicofluoric acid, chlorine plumbic acid, osmic acid, selenic acid, ferric acid, fluosulfonic acid, cyanic acid, thiocyanic acid, phosphoric acid, sodium pyrosulfate, sulfurous acid or nitrous acid.Organic acid is optional from picric acid, Jiao's property picric acid, trifluoroacetic acid, trichoroacetic acid(TCA), acetic acid, formic acid, methylsulfonic acid, Phenylsulfonic acid, KMD acid, 2-chloroethene mercaptan, oxalic acid, propanedioic acid, Succinic Acid, lactic acid, pyruvic acid, tartrate, oxysuccinic acid, citric acid, phenylformic acid, Whitfield's ointment or coffic acid.Common strong acid weak base salt is generally the strong acid salt of transition metal or the strong acid salt of amine substance, such as aluminum chloride, iron(ic) chloride, Tai-Ace S 150, ferric sulfate, cupric nitrate or ammonium chloride.The precursor of acidic substance refers to can be converted into the material of acidic substance in solution, such as the chloride derivative of acid, such as succinyl dichloride.
The B unit can contain one or more in double salt, chlorite or the available chlorine precursor substance of liquid chlorine, dioxide peroxide, hypochlorite, hypochlorite.Hypochlorite can be selected from one or more of clorox, Losantin, chlorinated lime, bleaching powder extract, magnesium hypochlorite.The double salt of hypochlorite can be selected from Efficacious Disinfeitant (Na
3PO
41/4NaOCl12H
2O).Chlorite can be selected from Textone, calcium chlorite.The available chlorine precursor substance refers to can generate with acid or water reaction the chlorine-bearing compound of activated state available chlorine, and its stability in the B unit is higher than in the mixed solution of A, B unit, and the available chlorine precursor substance can be selected from one or more of Surchlor GR 60, DICHLOROISOCYANURIC ACID, trichloroisocyanuric acid, chloramine-T, oxymuriate, perchlorate.
The available chlorine of B unit is the stable form of available chlorine.The available chlorine of stable form refers to have better stability in the B unit, reacts the chlorine-bearing compound that can generate activated state available chlorine with acid or water.Available chlorine content should guarantee that the available chlorine content in A, the B unit mixed solution is 3-3000mg/L in the B unit.
Available chlorine content is 3-3000mg/L in A unit and the B unit mixed solution, wherein is preferably 3-2000mg/L, is preferably 30-1000mg/L again, also is preferably 30-500mg/L, most preferably is 30-250mg/L.
The pH of B unit is neutral or alkaline, wherein, is preferably pH and is not less than 8, is preferably pH again and is not less than 9, also is preferably pH and is not less than 10, is preferably again pH and is not less than 11, and more preferably pH is not less than 12, most preferably is pH and is not less than 13.
The pH control of B unit can be one or several of highly basic, middle highly basic, weak base or strong base-weak acid salt.The contained alkaline matter in B unit can be selected from alkali-metal oxyhydroxide, such as sodium hydroxide, potassium hydroxide etc., also can be selected from the oxyhydroxide of alkaline-earth metal, such as calcium hydroxide, hydrated barta, magnesium hydroxide etc., also can be selected from the oxyhydroxide of transition metal, such as zinc hydroxide, ironic hydroxide etc., also can be selected from nitrogenous substances, such as ammoniacal liquor, diethanolamine, triethylamine etc., also optional from the highly basic salt of weak acid, such as yellow soda ash, sodium acetate, sodium phosphate, Trisodium Citrate etc.
Ferric ion content is not higher than 1500mg/L in A unit and the B unit mixed solution, wherein be preferably and be not higher than 1250mg/L, be preferably again and be not higher than 1000mg/L, be preferably again and be not higher than 750mg/L, also be preferably and be not higher than 500mg/L, most preferably be and be not higher than 250mg/L.
The method of control ferric ion content, one is by the volume of adjustment A, B unit and the substances content in the inherent component control AB unit mixed solution; Its two, by the pre-treatment of A or (reaching) B unit, remove part Fe
3+Ion; Its three, by the aftertreatment of AB unit mixed solution, remove part Fe
3+Ion.
The method of described removal ferric ion can be selected one or several of following method, to remove or masked segment Fe
3+Ion.Can add Fe
3+Deactivator is such as precipitation agent and Fe
3+Form precipitation-OH
-Ion is such as sequestrant and Fe
3+Form macromole inner complex-EDTA; Also can utilize the membrane sepn principle, such as reverse osmosis membrane, ion-selective membrane; Also can utilize electrochemical principle, such as electroosmose process, electrolytic process; Also can utilize chromatography, absorption method or ion exchange method.
Contain the solution of available chlorine when removing the part ferric ion by aforesaid method, available chlorine has certain loss usually, and its content need to redeterminate.In order to reduce the loss of available chlorine, can select the fast processing mode; Also can select to process under the cold condition; Also B unit ionic available chlorine can be transferred to molecule-type available chlorine (nearly neutrality or subacidity), make it to distinguish with ionic substance; Also can be with Fe
3+Transfer nonionic derivative to, make it with ionic effective constituent (as, hydrogen ion, clorox) distinguish.Remove purpose impurity (Fe
3+) after, return to again the stable form of available chlorine.
Equally, the aftertreatment meeting of sterilized water loss part available chlorine, but as long as suitably increase amount and the control rate of loss of available chlorine, the sterilized water that guarantees to process is at pH2-7, ORP 〉=700mV in the scope of ACC 〉=3mg/L, all can produce enough sterilization effects.
The present invention also provides a kind of acid oxidation potential sterilized water of low-corrosiveness, and the pH value of sterilized water is between 2-7, and its redox potential is not less than 700mV, and its available chlorine content is 3-3000mg/L, and its ferric ion content is not higher than 1500mg/L.
Its pH value is 2-7, wherein is preferably between 3-7, is preferably again between 4-7, most preferably is between 5-7.
The acidity control of its pH value, can be separately by acid regulator control or by acid regulator and alkaline conditioner co-controlling, make the acid oxidation potential sterilized water of low-corrosiveness contain one or several of mineral acid, organic acid, strong acid weak base salt, strong base-weak acid salt, weak acid and weak base salt or strong acid and strong base salt.
Described acid regulator can be selected from one or several of precursor of mineral acid, organic acid, strong acid weak base salt or acidic substance.Mineral acid can be selected from hydrochloric acid, Hydrogen bromide, hydroiodic acid HI, sulfuric acid, nitric acid, chloric acid, perchloric acid, bromic acid, hyperbromic acid, metaperiodic acid, metaphosphoric acid, permanganic acid, hydrogen borate, the acid of hydrogen astatine, hydrogen telluric acid, the folded acid iodide of hydrogen, silicofluoric acid, chlorine plumbic acid, osmic acid, selenic acid, ferric acid, fluosulfonic acid, cyanic acid, thiocyanic acid, phosphoric acid, sodium pyrosulfate, sulfurous acid or nitrous acid.Organic acid is optional from picric acid, Jiao's property picric acid, trifluoroacetic acid, trichoroacetic acid(TCA), acetic acid, formic acid, methylsulfonic acid, Phenylsulfonic acid, KMD acid, 2-chloroethene mercaptan, oxalic acid, propanedioic acid, Succinic Acid, lactic acid, pyruvic acid, tartrate, oxysuccinic acid, citric acid, phenylformic acid, Whitfield's ointment or coffic acid.Common strong acid weak base salt is generally the strong acid salt of transition metal or the strong acid salt of amine substance, such as aluminum chloride, iron(ic) chloride, Tai-Ace S 150, ferric sulfate, cupric nitrate or ammonium chloride.The precursor of acidic substance refers to can be converted into the material of acidic substance in solution, such as the chloride derivative of acid, such as succinyl dichloride.
Described alkaline conditioner can be one or several of highly basic, middle highly basic, weak base or strong base-weak acid salt.Described alkaline conditioner can be selected from alkali-metal oxyhydroxide, such as sodium hydroxide, potassium hydroxide etc., also can be selected from the oxyhydroxide of alkaline-earth metal, such as calcium hydroxide, hydrated barta, magnesium hydroxide etc., also can be selected from the oxyhydroxide of transition metal, such as zinc hydroxide, ironic hydroxide etc., also can be selected from nitrogenous substances, such as ammoniacal liquor, diethanolamine, triethylamine etc., also optional from the highly basic salt of weak acid, such as yellow soda ash, sodium acetate, sodium phosphate, Trisodium Citrate etc.
Contained available chlorine can be by one or more generations of double salt, chlorite or the available chlorine precursor substance of liquid chlorine, dioxide peroxide, hypochlorite, hypochlorite.Hypochlorite can be selected from one or more of clorox, Losantin, chlorinated lime, bleaching powder extract, magnesium hypochlorite.The double salt of hypochlorite can be selected from Efficacious Disinfeitant (Na
3PO
41/4NaOCl12H
2O).Chlorite can be selected from Textone, calcium chlorite.The available chlorine precursor substance refers to can generate with the reaction of acid or water the chlorine-bearing compound of activated state available chlorine, and the available chlorine precursor substance can be selected from one or more of Surchlor GR 60, DICHLOROISOCYANURIC ACID, trichloroisocyanuric acid, chloramine-T, oxymuriate, perchlorate.
Its available chlorine content 3-3000mg/L wherein is preferably 3-2500mg/L, is preferably 3-2000mg/L again, is preferably again 3-1500mg/L, also is preferably 3-1000mg/L, and more preferably 3-500mg/L most preferably is 30-250mg/L.
Its ferric ion content is not higher than 1500mg/L, wherein is preferably not to be higher than 1250mg/L, is preferably not to be higher than 1000mg/L again, is preferably again not to be higher than 750mg/L, also is preferably not to be higher than 500mg/L, most preferably is not to be higher than 250mg/L.
Describe the present invention in detail below in conjunction with embodiment, wherein Fe
3+Represent ferric ion.
Embodiment 1: configuration 1000L strongly-acid oxidizing potential sterilized water (available chlorine content is 3mg/L)
Raw material A: aqueous sulfuric acid (pH2-3), measure 1000L, can, sealing gets the A unit: 1000L sour water, Fe
3+=50g.
Raw material B: Surchlor GR 60 (available chlorine 0.25g/g), take by weighing 12g, packing gets B unit (the about 3g of available chlorine).
During use, the A unit is mixed with the B unit, make the dissolving of B unit, make 1000L strongly-acid oxidizing potential sterilized water (pH2-3, ORP1030-1130mV, ACC3mg/L, [Fe
3+] 50mg/L).At this moment, contain strong acid, weak acid, strong acid and strong base salt in the solution.
Embodiment 2: configuration 1000L slightly acidic oxidizing potential sterilized water (available chlorine content is 30mg/L)
Raw material A: aqueous sulfuric acid (pH3-5), measure 1000L, can, sealing gets the A unit: 1000L sour water, Fe
3+=100g.
Raw material B: Surchlor GR 60 (available chlorine 0.25g/g), take by weighing 120g, packing gets B unit (the about 30g of available chlorine).
During use, the A unit is mixed with the B unit, make the dissolving of B unit, make 1000L slightly acidic oxidizing potential sterilized water (pH3-5, ORP1000-1100mV, ACC30mg/L, [Fe
3+] 100mg/L).At this moment, contain strong acid, weak acid, strong acid and strong base salt in the solution.
Embodiment 3: configuration 1000L subacidity oxidizing potential sterilized water (available chlorine content is 500mg/L)
Raw material A: aqueous sulfuric acid (pH5-7), measure 1000L, can, sealing gets the A unit: 1000L sour water, Fe
3+=200g.
Raw material B: Surchlor GR 60 (available chlorine 0.25g/g), take by weighing 2Kg, packing gets B unit (the about 500g of available chlorine, Fe
3+=50g).
During use, the A unit is added the B unit, make the dissolving of B unit, make 1000L subacidity oxidizing potential sterilized water (pH5-7, ORP900-1100mV, ACC500mg/L, [Fe
3+] 250mg/L).At this moment, contain strong acid, weak acid, strong acid and strong base salt in the solution.
Embodiment 4: configuration 1000L slightly acidic oxidizing potential sterilized water (available chlorine content is 1000mg/L)
Raw material A: aqueous sulfuric acid (pH2.5), measure 1000L, can, sealing gets the A unit: 1000L sour water, Fe
3+=490g.
Raw material B: trichloroisocyanuric acid (available chlorine 0.4g/g), take by weighing 2.5Kg, add 120g sodium hydroxide, mix packing, get the B unit: 2.62Kg powder (the about 1Kg of available chlorine, Fe
3+=10g).
During use, the A unit is slowly added B unit (being not less than 15 minutes), make the dissolving of B unit, make 1000L acid oxidation potential sterilized water (pH3-4, ORP1100-1200mV, ACC1000mg/L, [Fe
3+] 500mg/L).At this moment, contain strong acid, weak acid, strong acid and strong base salt in the solution.
Embodiment 5: configuration 1000L subacidity oxidizing potential sterilized water (available chlorine content is 2000mg/L)
Raw material A: aqueous sulfuric acid (pH2.5), measure 1000L, can, sealing gets the A unit: 1000L sour water, Fe
3+=700g.
Raw material B: chloramine-T (available chlorine 0.25g/g), take by weighing 8Kg, add 168g yellow soda ash, mix packing, get B unit (the about 2Kg of available chlorine, Fe
3+=300g).
During use, the A unit is added the B unit in batches, make the dissolving of B unit, every crowd of addition 100L makes 1000L acid oxidation potential sterilized water (pH5-7, ORP1000-1200mV, ACC2000mg/L, [Fe
3+] 1000mg/L).At this moment, contain strong acid, weak acid, weak acid strong alkali salt, strong acid and strong base salt in the solution.
Embodiment 6: configuration 1000L subacidity oxidizing potential sterilized water (available chlorine content is 3000mg/L)
Raw material A: aqueous sulfuric acid (pH3.5), measure 1000L, can, sealing gets the A unit: 1000L sour water, Fe
3+=850g.
Raw material B: solid chlorine dioxide (available chlorine 0.2g/g), take by weighing 15Kg, add 17g yellow soda ash, mix packing, get B unit (the about 3Kg of available chlorine, Fe
3+=650g).
During use, the A unit is added the B unit in batches, every crowd of addition 50L makes 1000L subacidity oxidizing potential sterilized water (pH5-7, ORP1000-1200mV, ACC3000mg/L, [Fe
3+] 1500mg/L).At this moment, contain strong acid, weak acid, weak acid strong alkali salt, strong acid and strong base salt in the solution.
Embodiment 7: configuration 10L strongly-acid oxidizing potential sterilized water (available chlorine content is 3mg/L)
Raw material A: aqueous hydrochloric acid (pH2-3), measure 9.99L, can, sealing gets the A unit: 9.99L sour water, Fe
3+=0.1g.
Raw material B: stable ClO 2 solution (sodium hydroxide is regulated for available chlorine 3mg/ml, pH10-11), measure 10ml, can, sealing gets B unit (available chlorine 30mg).
During use, the A unit is mixed with the B unit, make 10L acid oxidation potential sterilized water (pH2-3, ORP1050-1150mV, ACC3mg/L, [Fe
3+] 10mg/L).At this moment, contain strong acid, strong acid and strong base salt in the solution.
Embodiment 8: configuration 10L slightly acidic oxidizing potential sterilized water (available chlorine content is 250mg/L)
Raw material A: aqueous hydrochloric acid (pH3-3.5), measure 9.9L, can, sealing gets the A unit: 9.9L sour water, Fe
3+=2.5g.
Raw material B: chlorine bleach liquor's (sodium hydroxide is regulated for available chlorine 25mg/ml, pH=10-11), measure 0.1L, can, sealing gets the B unit: 0.1L solution (available chlorine 2.5g).
During use, the A unit is mixed with the B unit, make 10L slightly acidic oxidizing potential sterilized water (pH3-5, ORP1000-1150mV, ACC250mg/L, [Fe
3+] 250mg/L).At this moment, contain strong acid, weak acid, strong acid and strong base salt in the solution.
Embodiment 9: configuration 10L subacidity oxidizing potential sterilized water (available chlorine content is 1000mg/L)
Raw material A: aqueous hydrochloric acid (pH5.0-6.0), measure 9L, can, sealing gets the A unit: 9L sour water, Fe
3+=4.5g.
Raw material B: chlorine bleach liquor's (sodium hydroxide is regulated for available chlorine 10mg/ml, pH=7.5), measure 1L, can, sealing gets the B unit: 1L solution (available chlorine 10g, Fe
3+=0.5g).
During use, the A unit is mixed with the B unit, make 10L subacidity oxidizing potential sterilized water (pH5-7, ORP1000-1100mV, ACC1000mg/L, [Fe
3+] 500mg/L).At this moment, contain strong acid, weak acid, strong acid and strong base salt in the solution.
Embodiment 10: configuration 10L slightly acidic oxidizing potential sterilized water (available chlorine content is 1500mg/L)
Raw material A: aqueous hydrochloric acid (pH2-2.5), measure 9L, can, sealing gets the A unit: 9L sour water, Fe
3+=5g.
Raw material B: chlorine bleach liquor's (sodium hydroxide-yellow soda ash is regulated for available chlorine 15mg/ml, pH=12.5), measure 1L, can, sealing gets B unit (available chlorine 15g, Fe
3+=2.5g).
During use, the A unit is added the B unit, mix, make 10L slightly acidic oxidizing potential sterilized water (pH3-5, ORP1050-1200mV, ACC1500mg/L, [Fe
3+] 750mg/L).At this moment, contain strong acid, weak acid, strong acid and strong base salt, strong base-weak acid salt in the solution.
Embodiment 11: configuration 10L subacidity oxidizing potential sterilized water (available chlorine content is 2000mg/L)
Raw material A: aqueous hydrochloric acid (pH=3-3.5), measure 9.8L, can, sealing gets the A unit: 9.8L sour water, Fe
3+=6.5g.
Raw material B: chlorine bleach liquor's (calcium hydroxide is regulated for available chlorine 100mg/ml, pH=12), measure 200ml, can, sealing gets B unit (available chlorine 20g, Fe
3+=3.5g).
During use, the A unit is added the B unit in batches, every crowd of add-on 50ml makes 10L acid oxidation potential sterilized water (pH5-7, ORP1000-1200mV, ACC2000mg/L, [Fe
3+] 1000mg/L).At this moment, contain strong acid, weak acid, strong acid and strong base salt in the solution.
Embodiment 12: configuration 10L subacidity oxidizing potential sterilized water (available chlorine content is 2500mg/L)
Raw material A: aqueous hydrochloric acid (pH2-3), measure 9.75L, can, sealing gets the A unit: 9.75L sour water, Fe
3+=8g.
Raw material B: chlorine bleach liquor's (diethylamine is regulated for available chlorine 100mg/ml, pH=12), adjust alkalescence, measure 250ml, can, sealing gets B unit (available chlorine 25g, Fe
3+=4.5g).
During use, the A unit is slowly added B unit (time is not less than 1 minute), make 10L acid oxidation potential sterilized water (pH5-7, ORP1000-1200mV, ACC2500mg/L, [Fe
3+] 1250mg/L).
Embodiment 13: configuration 10L strongly-acid oxidizing potential sterilized water (available chlorine content is 3000mg/L)
Raw material A: aqueous hydrochloric acid (pH2.0-3.0), measure 9L, can, sealing gets the A unit: 9L sour water, Fe
3+=10g.
Raw material B: the hypochlorite generator prepares chlorine bleach liquor's (yellow soda ash is regulated for available chlorine 30mg/ml, pH=7.5), measures 1L, can, and sealing gets B unit (available chlorine 30g, Fe
3+=5g).
During use, A unit slow (being no less than 5 minutes) is added the B unit, make 10L strongly-acid oxidizing potential sterilized water (pH2-3, ORP1200-1400mV, ACC3000mg/L, [Fe
3+] 1500mg/L).
Embodiment 14: configuration 10L slightly acidic oxidizing potential sterilized water (available chlorine content is 1000mg/L)
Raw material A: acetic acid aqueous solution (pH4.0-5.0), measure 9.8L, can, sealing gets the A unit: 9.8L sour water, Fe
3+=1.5g.
Raw material B: the hypochlorite generator prepares chlorine bleach liquor's (sodium bicarbonate is regulated for available chlorine 50mg/ml, pH=7.5), measures 200ml, can, and sealing gets the B unit: 200ml solution (available chlorine 10g, Fe
3+=4g).
During use, the spraying of A unit is added the B unit, make 10L slightly acidic oxidizing potential sterilized water (pH4-5, ORP1000-1200mV, ACC1000mg/L, [Fe
3+] 550mg/L).At this moment, contain weak acid-weak acid strong alkali salt buffer system in the solution.
Embodiment 15: configuration 10L subacidity oxidizing potential sterilized water (available chlorine content is 1500mg/L)
Raw material A: acetic acid-sodium acetate solution (pH5.0-5.5), measure 9.85L, can, sealing gets the A unit: 9.85L sour water, Fe
3+=5g.
Raw material B: the hypochlorite generator prepares chlorine bleach liquor's (aluminium hydroxide is regulated for available chlorine 100mg/ml, pH=7.5), measures 150ml, can, and sealing gets the B unit: 150ml solution (available chlorine 15g, Fe
3+=3g).
During use, the A unit is added dropwise to the B unit, makes 10L subacidity oxidizing potential sterilized water (pH5-7, ORP1000-1300mV, ACC1500mg/L, [Fe
3+] 800mg/L).At this moment, contain acetic acid-sodium acetate buffer system in the solution.
Embodiment 16: configuration 10L acid oxidation potential sterilized water (available chlorine content is 3mg/L)
Raw material A: acidic solution (0.1M acetic acid, 0.01M hydrochloric acid), measure 9.97L, can, sealing gets the A unit: 9.97L sour water, Fe
3+=3.5g.
Raw material B: chlorine bleach liquor (available chlorine 1mg/ml/pH=12.5, trolamine-yellow soda ash is regulated), measure 30ml, filling and sealing gets the B unit: 30ml solution (available chlorine 30mg).
During use, the A unit is added the B unit, make 10L acid oxidation potential sterilized water (pH6.85, ORP700mV, ACC3mg/L, [Fe
3+] 350mg/L).At this moment, contain strong acid, weak acid, strong acid and strong base salt, strong base-weak acid salt in the solution.
Embodiment 17: configuration 10L slightly acidic oxidizing potential sterilized water (available chlorine content is 150mg/L)
Raw material A: citric acid solution (0.1M), measure 9.99L, can, sealing gets the A unit: 9.99L sour water, Fe
3+=0.8g.
Raw material B: chlorine bleach liquor (available chlorine 150mg/ml/pH=13-14, Diisopropylamine is regulated), measure 10ml, filling and sealing gets the B unit: 10ml solution (available chlorine 1.5g, Fe
3+=0.2g).
During use, the A unit is added the B unit in batches, every crowd of 400ml makes 10L acid oxidation potential sterilized water (pH3-5, ORP1000-1100mV, ACC 150mg/L, [Fe
3+] 100mg/L).At this moment, solution contains citric acid-citrate buffer solution.
Embodiment 18: configuration 10L slightly acidic oxidizing potential sterilized water (available chlorine content is 1000mg/L)
Raw material A: the tartrate solid, take by weighing 1mol, packing, sealing gets the A unit, Fe
3+=1g.
Raw material B: sodium chlorite solution (available chlorine 1mg/ml/pH=13-14, hydrated barta is regulated), measure 10L, filling and sealing gets the B unit: 10L solution (available chlorine 10g, Fe
3+=4g).
During use, the A unit is mixed with the B unit, make 10L acid oxidation potential sterilized water (pH3-5, ORP1100-1300mV, ACC1000mg/L, [Fe
3+] 500mg/L).At this moment, solution contains tartrate-tartrate buffered soln.
Embodiment 19: configuration 10L strongly-acid oxidizing potential sterilized water (available chlorine content is 2000mg/L)
Raw material A: succinic acid solution (1M), measure 10L, can, sealing gets A unit (Fe
3+=7g).
Raw material B: Surchlor GR 60 (available chlorine 0.25g/g), take by weighing 80g, get B unit (the about 20g of available chlorine, Fe
3+=3g).
During use, the A unit is mixed with the B unit, make 10L acid oxidation potential sterilized water (pH2-3, ORP1200-1400mV, ACC2000mg/L, [Fe
3+] 1000mg/L).
Embodiment 20: configuration 1L acid oxidation potential sterilized water (available chlorine content is 3000mg/L)
Raw material A: citric acid solid takes by weighing 1mol(Fe
3+=1g).
Raw material B: Losantin powder (available chlorine 0.2g/g) takes by weighing the about 3g of 15g(available chlorine, Fe
3+=0.1g).
With A raw material and B raw material and 0.2mol calcium chloride (siccative, Fe
3+=0.3g) mix monobasic to pack.
During use, the AB composition is dissolved in 1L water (Fe
3+=0.1g) in, after solution transfers acidity to, make 10L acid oxidation potential sterilized water (pH2-7, ORP900-1400mV, ACC3000mg/L, [Fe
3+] 1500mg/L).At this moment, contain strong acid, weak acid, strong acid and strong base salt, weak acid strong alkali salt in the solution.
Embodiment 21: configuration 1L acid oxidation potential sterilized water (available chlorine content is 300mg/L)
Raw material A: ferric chloride Solution (0.015M), measure 0.98L, can, sealing gets the A unit, contains Fe
3+=0.83g.
Raw material B: chlorine bleach liquor (pH=7.5), measure 20ml(available chlorine 300mg), can, sealing gets the B unit: 20ml solution (available chlorine 300mg, Fe
3+=0.67g).
During use, the A unit is mixed with the B unit, after solution transfers acidity to, make 1L acid oxidation potential sterilized water (pH2-7, ORP800-1200mV, ACC300mg/L, [Fe
3+] 1500mg/L).At this moment, solution contains strong acid weak base salt, strong acid and strong base salt, strong acid, weak acid.
Embodiment 22: configuration 1L acid oxidation potential sterilized water (available chlorine content is 400mg/L)
Raw material A: aluminum chloride solids, take by weighing 0.0094mol, can, sealing gets A unit (Fe
3+=0.15g).
Raw material B: sodium chlorite solution (pH=7.5), measure 1L(available chlorine 400mg), can, sealing gets the B unit: 1L solution (available chlorine 400mg, Fe
3+=0.6g).
During use, the A unit is mixed with the B unit, after solution transfers acidity to, make 1L acid oxidation potential sterilized water (pH2-7, ORP800-1200mV, ACC400mg/L, [Fe
3+] 750mg/L).At this moment, solution contains strong acid weak base salt, strong acid and strong base salt, strong acid, weak acid.
Embodiment 23: configuration 1L acid oxidation potential sterilized water (available chlorine content is 600mg/L)
Raw material A: liquor zinci chloridi (0.05M), measure 1L, can, sealing gets the A unit, Fe
3+=900mg.
Raw material B: the Efficacious Disinfeitant solid, take by weighing 6g, packing gets B unit (available chlorine 0.6g, Fe
3+=100mg).
During use, the A unit is mixed with the B unit, dissolving makes 1L acid oxidation potential sterilized water (pH2-3, ORP1100-1300mV, ACC600mg/L, [Fe
3+] 1000mg/L).At this moment, solution contains strong acid weak base salt, strong acid and strong base salt, strong acid, weak acid.
Embodiment 24: configuration 1L acid oxidation potential sterilized water (available chlorine content is 700mg/L)
Raw material A: the ferric sulfate solid takes by weighing 0.008mol (Fe
3+=0.9g).
Raw material B: Losantin powder (available chlorine 0.4g/g) takes by weighing 1.75g, the about 700mg of available chlorine, Fe
3+=50mg.
With A raw material and B raw material and 5g sodium acetate (Fe
3+=50mg) mix monobasic to pack.
During use, the AB composition is dissolved in 1L water (Fe
3+=0.25g) in, after solution transferred acidity to, (pH2-7, ORP900-1300mV, available chlorine content were 700mg/L, [Fe to make 1L acid oxidation potential sterilized water
3+] 1250mg/L).At this moment, solution contains strong acid, weak acid, strong acid and strong base salt, weak acid and weak base salt, strong acid weak base salt, weak acid strong alkali salt.
Because calcium sulfate is poorly soluble, thus insolubles is arranged in the system, but do not affect the characteristic of its available chlorine, pH, ORP.
Embodiment 25: configuration 1L acid oxidation potential sterilized water (available chlorine content is 800mg/L)
Raw material A: succinyl dichloride, take by weighing 0.03mol, packing, sealing gets the A unit, Fe
3+=150mg.
Raw material B: chlorine bleach liquor (pH=11, sodium hydroxide-yellow soda ash is regulated), measure 1L(available chlorine 800mg), can, sealing gets the B unit: 1L solution (available chlorine 800mg, Fe
3+=100mg).
During use, the A unit is added the B unit, dissolving after solution transfers acidity to, makes 1L acid oxidation potential sterilized water (pH2-7, ORP900-1300mV, ACC800mg/L, [Fe
3+]=250mg/L).At this moment, solution contains strong acid, weak acid, strong acid and strong base salt, strong base-weak acid salt.
Embodiment 26: configuration 1L acid oxidation potential sterilized water (available chlorine content is 1000mg/L)
Raw material A: the succinyl dichloride powder takes by weighing 0.03mol(Fe
3+=150mg).
Raw material B: the Losantin powder takes by weighing 5g, available chlorine 1000mg, Fe
3+=50mg.
With A, B raw material and 3g calcium chloride (siccative, Fe
3+=50mg) mix monobasic to pack.
During use, the AB composition is dissolved in 1L water (Fe
3+=250mg) in, after solution transfers acidity to, make 1L acid oxidation potential sterilized water (pH2-7, ORP800-1300mV, ACC1000mg/L, [Fe
3+]=500mg/L).At this moment, solution contains strong acid, weak acid, strong acid and strong base salt, strong base-weak acid salt.
Embodiment 27: configuration 1000L strongly-acid oxidizing potential sterilized water (available chlorine content is 1500mg/L)
Raw material A: electrolysis produces acidic oxidized electric potential water (ACC decomposes rapidly for pH2-3, ORP1100-1300mV), measures 1000L, can, and sealing gets the A unit: 1000L sour water.
Raw material B: Losantin powder (available chlorine 250mg/g), take by weighing 6kg, packing gets the B unit: 3kg powder (available chlorine 1500g, Fe
3+=50g).
During use, the A unit is mixed with the B unit, make 1000L acid oxidation potential sterilized water (pH2-3, ORP1100-1300mV, ACC1500mg/L, [Fe
3+]=50mg/L).
Embodiment 28: configuration 1L acid oxidation potential sterilized water (available chlorine content is 50mg/L)
Raw material A: hydrochloric acid soln (pH2-3), measure 1L, Fe
3+=400mg, independent packaging.
Raw material B: chlorine/nitrogen mixture, can amount 5ml, available chlorine 50mg, independent high sealing packing.
During use, under the air tight condition, the A unit is added the B unit mix, make 1L acid oxidation potential sterilized water (pH2-3, ORP1100-1200mV, ACC50mg/L, [Fe
3+] 400mg/L).At this moment, solution contains strong acid, weak acid.
Embodiment 29: configuration 10L acid oxidation potential sterilized water (available chlorine content is 500mg/L)
Raw material A: hydrochloric acid soln (3M), measure 15ml, Fe
3+=500mg, independent corrosion-proof packing.
Raw material B: sodium chlorate solution's (yellow soda ash is regulated for 2.5M, pH=8), measure 10ml, Fe
3+=500mg independence corrosion-proof packing.
During use, the A unit with after the B unit mixes, with the water dilution of 9.975L, is made 10L acid oxidation potential sterilized water (pH2.5-3.5, ORP1100-1300mV, ACC500mg/L, [Fe again
3+] 100mg/L).At this moment, solution contains strong acid, weak acid, strong acid and strong base salt.
Embodiment 30: configuration 10L acid oxidation potential sterilized water (available chlorine content is 150mg/L)
Raw material A: hydrochloric acid soln (4M), measure 10ml, Fe
3+=0.45g, independent corrosion-proof packing.
Raw material B: sodium perchlorate solution (yellow soda ash is regulated for 0.5M, pH=8), measure 10ml, Fe
3+=0.2g, independent corrosion-proof packing.
During use, the A unit with after the B unit mixes, with the water dilution of 9.98L, is made 10L acid oxidation potential sterilized water (pH5-7, ORP900-1100mV, ACC150mg/L, [Fe again
3+] 65mg/L).At this moment, solution contains strong acid, weak acid, strong acid and strong base salt.
Embodiment 31: configuration 1L acid oxidation potential sterilized water (available chlorine content is 200mg/L)
Raw material A: hydrochloric acid soln (pH=0), measure 10ml, Fe
3+=300mg, independent packaging.
Raw material B: chlorine bleach liquor (pH=12.5, potassium hydroxide is regulated), measure 10ml(available chlorine 200mg, Fe
3+=200mg), independent packaging.
During use, A unit and B unit are placed 0.98L water (Fe
3+=500mg) in, make 1L acid oxidation potential sterilized water (pH2-3, ORP1150-1300mV, ACC200mg/L, [Fe
3+] 1000mg/L).At this moment, solution contains strong acid, weak acid, strong acid and strong base salt.
Embodiment 32: configuration 1000L strongly-acid oxidizing potential sterilized water (available chlorine content is 1000mg/L)
Raw material A: acidic aqueous solution 2000L(pH2-3, Fe
3+=100mol).
The raw material A pre-treatment
Method 2, raw material A is analysed post by sodium type resinbed, removes Fe
3+, adjust pH, obtain raw material A 2(pH2-3, Fe
3+＜500mg/L).
Method 3, raw material A are by manganese sand adsorption column, and part is adsorbed Fe
3+, adjust pH, obtain raw material A 3(pH2-3, Fe
3+＜1000mg/L).
Method 4, raw material A is by nanofiltration membrane, and control condition makes the Fe that is trapped
3+Amount greater than other ion, adjust pH, obtain raw material A 4(pH2-3, Fe
3+＜1200mg/L).
Method 5 by ion-selective membrane, is removed part Fe under the certain electric current of raw material A
3+, adjust pH, obtain raw material A 5(pH2-3, Fe
3+＜1000mg/L).
Measure respectively each 1000L of raw material A 1-A5, can, sealing gets A unit 1-5:1000L sour water (pH2-3, [Fe
3+] 200-1200mg/L).
Raw material B: Losantin powder (available chlorine 200mg/g), take by weighing 5kg, packing gets the B unit: 5kg powder (available chlorine 1000g, Fe
3+=100g).
Prepare each 5 parts of identical B unit.
During use, A unit A1-A5 is mixed with a B unit respectively, make 1000L acid oxidation potential sterilized water 1-5(pH2-3, ORP1150-1350mV, ACC1000mg/L, [Fe
3+] 300-1300mg/L).
Above-mentioned acid oxidation potential sterilized water 1-5 continues aftertreatment
Method 2, sterilized water 1-5 analyses post by sodium type resinbed respectively fast, removes Fe
3+, obtain sterilized water 11-15(pH2-3, ORP1200-1350mV, ACC800-1000mg/L, Fe
3+＜500mg/L).
Method 3, fast by manganese sand adsorption column, part is adsorbed Fe to sterilized water 1-5 respectively
3+, obtain sterilized water 16-20(pH2-3, ORP1200-1350mV, ACC700-800mg/L, Fe
3+＜300mg/L).
Method 4, fast by nanofiltration membrane, control condition makes the Fe that is trapped to sterilized water 1-5 respectively
3+Amount greater than other ion, obtain sterilized water 21-25(pH2-3, ORP1200-1350mV, ACC400-700mg/L, Fe
3+＜1000mg/L).
Method 5, sterilized water 1-5 respectively fast by ion-selective membrane, removes part Fe under certain electric current
3+, obtain sterilized water 26-30(pH2-3, ORP1200-1350mV, ACC500-700mg/L, Fe
3+＜600mg/L).
The aftertreatment meeting of sterilized water makes the available chlorine partial loss, but at pH2-7, ORP 〉=700mV in the scope of ACC 〉=3mg/L, all can produce enough sterilization effects.
Embodiment 33: configuration 10L strongly-acid oxidizing potential sterilized water (available chlorine 500-1000mg/L)
Raw material A: the citric acid powder, weighing 1mol, packing gets the A unit.Prepare respectively identical 6 parts.
Raw material B: available chlorine solution 100L(pH7.5, Fe
3+=5.6g/L).
Raw material B pre-treatment
Method 2, raw material B alkalizes to pH12, forms ferric hydroxide precipitate, and behind the fast filtering, filtrate returns to pH7.5, gets raw material B2(pH7.5, ACC1000mg/L, [Fe
3+]＜200mg/L)
Method 3, raw material B analyses post by sodium type resinbed fast, removes Fe
3+, adjust pH, obtain raw material B3(pH7.5, ACC900mg/L, [Fe
3+]＜500mg/L).
Method 4, raw material B is fast by manganese sand adsorption column, and part is adsorbed Fe
3+, adjust pH, obtain raw material B4(pH7.5, ACC800mg/L, [Fe
3+]＜300mg/L).
Method 5, by nanofiltration membrane, control condition makes the Fe that is trapped to raw material B fast
3+Amount greater than other ion, adjust pH, obtain raw material B5(pH7.5, ACC700mg/L, [Fe
3+]＜1500mg/L).
Method 6, raw material B fast by ion-selective membrane, removes part Fe under certain electric current
3+, adjust pH, obtain raw material B6(pH7.5, ACC700mg/L, [Fe
3+]＜1000mg/L).
Through above-mentioned processing, available chlorine has certain loss, and its content need to redeterminate.
Raw material B1-B6 is respectively measured 10L, can, and sealing makes the B1-B6 unit.
During use, the B1-B6 unit is mixed with a A unit respectively, make 10L acid oxidation potential sterilized water 1-6(pH2-3, ORP1200-1350mV, ACC700-1000mg/L, [Fe
3+]＜1500mg/L).
Above-mentioned acid oxidation potential sterilized water 5 continues aftertreatment
Method 2, sterilized water 5 are analysed post by sodium type resinbed fast, remove Fe
3+, obtain sterilized water 8(pH2-3, ORP1200-1300mV, ACC500mg/L, [Fe
3+]＜800mg/L).
Method 3, sterilized water 5 is fast by manganese sand adsorption column, and part is adsorbed Fe
3+, obtain sterilized water 9(pH2-3, ORP1200-1300mV, ACC500mg/L, [Fe
3+]＜1000mg/L).
Method 4, sterilized water 5 is fast by nanofiltration membrane, and control condition makes the Fe that is trapped
3+Amount greater than other ion, obtain sterilized water 10(pH2-3, ORP1200-1300mV, ACC500mg/L, [Fe
3+]＜500mg/L).
Method 5, sterilized water 5 fast by ion-selective membrane, is removed part Fe under certain electric current
3+, obtain sterilized water 11(pH2-3, ORP1200-1300mV, ACC600mg/L, [Fe
3+]＜500mg/L).
The aftertreatment meeting of sterilized water makes the available chlorine partial loss, but at pH2-7, ORP 〉=700mV in the scope of ACC 〉=3mg/L, all can produce enough sterilization effects.
Embodiment 34: configuration 100L acid oxidation potential sterilized water (available chlorine content 1000mg/L)
Raw material A: hydrochloric acid soln 100L(pH2-3, [Fe
3+] 5.6g/L).
The raw material A pre-treatment
Raw material A adds EDTA (10mol), forms complex compound, and the filtering macromole obtains raw material A 1(pH2-3, [Fe
3+]＜100mg/L).Measure 99L, can, sealing makes the A1 unit.
Raw material B: chlorine bleach liquor 10L(pH7.5, [Fe
3+] 10g/L).
Raw material B is fast by manganese sand adsorption column, and part is adsorbed Fe
3+, obtain raw material B1(pH7.5, ACC100mg/ml, [Fe
3+]＜100mg/L).
Take by weighing 1L raw material B1, can, sealing makes the B1 unit.
During use, the A1 unit is mixed with the B1 unit, make 100L acid oxidation potential sterilized water (pH2-3, ORP1200-1350mV, ACC1000mg/L, [Fe
3+]＜100mg/L).
Embodiment 35: configuration 10L acid oxidation potential sterilized water (available chlorine content 1000mg/L)
Raw material A: aqueous acid (pH5-6, [Fe
3+] 5.5g/L), measure 9L, can, sealing makes the A unit.
Raw material B: chlorine bleach liquor (pH7.5, ACC10g/L, [Fe
3+] 6.5g/L), take by weighing 1L, can, sealing makes the B1 unit.
During use, the A1 unit is mixed with the B1 unit, make the high Fe of 10L
3+Acid oxidation potential sterilized water (pH6-7, ACC1000mg/L, the ORP1000-1200mV, [Fe of content
3+] 5.6g/L).Above-mentioned sterilized water adds 1molEDTA, forms iron complex, and fast filtering makes low Fe
3+Sterilized water (pH6-7, ACC800mg/ml, ORP1000-1200mV, [Fe
3+]＜100mg/L).
Disinfection effect test:
With the representative of streptococcus aureus ATCC 6538 as pyococcus in the bacterial propagule; Intestinal bacteria 8099 are as the representative of entero-bacte in the bacterial propagule; Pseudomonas aeruginosa ATCC 15442 is as the representative of the bacterial propagule of normal separation in the hospital infection; Staphylococcus albus 8032 is as the representative of bacterium in the air; Mycobacterium chelonei abscess subspecies ATCC 93326 is as bacillus tuberculosis typus humanus's representative; Bacillus subtilis black variety gemma ATCC 9372 is as the representative of bacterial spore; Candida albicans ATCC 10231 and black-koji mould ATCC 16404 are as the representative of pathogenic fungus; Poliovirus-I type vaccine strain (Poliovirus-I) is as the representative of virus; With the representative as resistant organism of methicillin resistant staphylococcus aureus (MRSA) and vancomycin-resistant enterococcus (VRE); Represent pathogenic bacterium in the fishery products with Vibrio parahemolyticus, Listeria monocytogenes; Represent the bird pathogenic bacterium with the white dysentery Salmonellas; Represent agriculture pathogenic bacterium with wheat stripe rust.
Bactericidal assay 1 (suspension is quantitative), the acid oxidation potential sterilized water is killed logarithm and time
Trial target 2, ACC3mg/L, pH2.0, ORP1030mV, [Fe
3+] 30mg/L
Reference substance 2, machine electrolytic acid electrolyzed oxidizing water 2(ACC3mg/L, pH2.0, ORP1030mV)
Kill logarithm behind table 1 15min action time
| Test | Trial target | 1 | Trial target 2 | |
Reference substance 2 |
| Streptococcus aureus | >5.00 | >5.00 | >5.00 | >5.00 | |
| Intestinal bacteria | >5.00 | >5.00 | >5.00 | >5.00 | |
| Pseudomonas aeruginosa | >5.00 | >5.00 | >5.00 | >5.00 | |
| Candida albicans | >5.00 | >5.00 | >5.00 | >5.00 | |
| Black-koji mould | >5.00 | >5.00 | >5.00 | >5.00 | |
| Staphylococcus albus | >5.00 | >5.00 | >5.00 | >5.00 | |
| Poliovirus I type vaccine strain | >5.00 | >5.00 | >5.00 | >5.00 | |
| Mycobacterium chelonei abscess subspecies | >5.00 | >5.00 | >5.00 | >5.00 |
Annotate: above experiment (adds 0.3% organic chaff interference) and carries out bactericidal assay 2 (suspension is quantitative) under clean conditions, the acid oxidation potential sterilized water is killed logarithm and time trial target 1, ACC3000mg/L, pH6.8, ORP1150mV, [Fe
3+] 1500mg/L trial target 2, ACC3000mg/L, pH2.0, ORP1350mV, [Fe
3+] 1500mg/L
Kill logarithm behind table 2 0.5min action time
| Test | Trial target | 1 | Trial target 2 |
| Streptococcus aureus | >5.00 | >5.00 | |
| Methicillin resistant staphylococcus aureus | >5.00 | >5.00 | |
| Intestinal bacteria | >5.00 | >5.00 | |
| Vancomycin-resistant enterococcus | >5.00 | >5.00 | |
| Pseudomonas aeruginosa | >5.00 | >5.00 | |
| Candida albicans | >5.00 | >5.00 | |
| Black-koji mould | >5.00 | >5.00 | |
| Staphylococcus albus | >5.00 | >5.00 | |
| Bacillus subtilis black variety gemma | >5.00 | >5.00 | |
| Poliovirus I type vaccine strain | >5.00 | >5.00 | |
| Mycobacterium chelonei abscess subspecies | >5.00 | >5.00 | |
| Vibrio parahemolyticus | >5.00 | >5.00 | |
| Listeria monocytogenes | >5.00 | >5.00 | |
| The white dysentery Salmonellas | >5.00 | >5.00 | |
| Wheat stripe rust | >5.00 | >5.00 |
Annotate: above experiment (adds 0.3% organic chaff interference) and carries out under clean conditions
Stability test
" disinfection technology standard (version in 2008) " middle three kinds of validity period detection methods stipulating that product among the embodiment 7,8,17,18,19,20,23,24,25,26 is promulgated according to the Ministry of Health, the result shows that validity period surpasses 2 years.
The metal protection test
Test materials 2, thimerosal, the acid oxidation potential sterilized water of different ferric ion content.
Test group, test materials 1 are removed dirt settling (fully deoil, fully the deoxidation layer is cleaned); Measure diameter, thickness, the aperture of sheet; 50 ℃ of dry 1h, weigh (as weight before the test); Hang in the 200ml test materials 2, continue 72 hours, and regularly change thimerosal; Take out tinsel, remove corrosion product, clean, 50 ℃ of dry 1h weigh.
The blank group, test materials 1 repeats by above-mentioned steps, but soaks without sterilizing agent.And calculate its average weightless value.
The Calculation of corrosion rate is such as table 3-table 9.
The erosion rate of table 3 pair carbon steel
| pH | ACC(mg/L) | [Fe 3+](mg/L) | Erosion rate (mm/a) |
| 2.0 | 0 | 1500 | 0.1312 |
| 2.0 | 1 | 1500 | 0.1385 |
| 2.0 | 2 | 1500 | 0.1447 |
| 2.0 | 3 | 1500 | 0.2575 |
| 2.0 | 4 | 1500 | 0.2606 |
| 2.0 | 5 | 1500 | 0.2779 |
| 2.0 | 10 | 1500 | 0.2833 |
| 2.0 | 15 | 1500 | 0.2881 |
| 2.0 | 20 | 1500 | 0.2916 |
Can learn from table 3: compare with the solution that does not contain available chlorine, the introducing of available chlorine is with Fe
3+Synergy has strengthened the corrodibility of solution to carbon steel.
Table semi-finals sour environment is to the erosion rate of carbon steel
| pH | ACC(mg/L) | [Fe 3+](mg/L) | Erosion rate (mm/a) |
| 2.0 | 0 | 10 | 0.0405 |
| 2.0 | 3 | 10 | 0.0955 |
| 2.0 | 0 | 500 | 0.0957 |
| 2.0 | 3 | 500 | 0.1387 |
| 2.0 | 0 | 1000 | 0.1145 |
| 2.0 | 3 | 1000 | 0.1855 |
| 2.0 | 0 | 1500 | 0.1312 |
| 2.0 | 3 | 1500 | 0.2575 |
| 2.0 | 0 | 2000 | 0.1556 |
| 2.0 | 3 | 2000 | 0.6823 |
Table 5 slightly acidic environment is to the erosion rate of carbon steel
| pH | ACC(mg/L) | [Fe 3+](mg/L) | Erosion rate (mm/a) |
| 6.8 | 0 | 10 | 0.0255 |
| 6.8 | 3 | 10 | 0.0665 |
| 6.8 | 0 | 500 | 0.0732 |
| 6.8 | 3 | 500 | 0.1183 |
| 6.8 | 0 | 1000 | 0.0915 |
| 6.8 | 3 | 1000 | 0.1678 |
| 6.8 | 0 | 1500 | 0.1246 |
| 6.8 | 3 | 1500 | 0.2275 |
| 6.8 | 0 | 2000 | 0.1456 |
| 6.8 | 3 | 2000 | 0.5445 |
Can learn from table 4, table 5: in sour environment, compare with the solution that does not contain available chlorine, the introducing of available chlorine is with Fe
3+Synergy has strengthened the corrodibility of solution to carbon steel.Wherein, when available chlorine content is higher than 3mg/L, the corrodibility of carbon steel is significantly risen.Wherein, the synergy of available chlorine (3mg/L) makes Fe
3+Content sharply rises to the corrodibility of carbon steel when 1500mg/L is above.
Table 6 strong acidic environment is to the erosion rate of carbon steel
| pH | ACC(mg/L) | [Fe 3+](mg/L) | Erosion rate (mm/a) |
| 2.0 | 3000 | 10 | 0.2078 |
| 2.0 | 3000 | 500 | 0.2792 |
| 2.0 | 3000 | 1000 | 0.3389 |
| 2.0 | 3000 | 1500 | 0.4593 |
| 2.0 | 3000 | 2000 | 1.2275 |
Table 7 slightly acidic environment is to the erosion rate of carbon steel
| pH | ACC(mg/L) | [Fe 3+](mg/L) | Erosion rate (mm/a) |
| 6.8 | 3000 | 10 | 0.0758 |
| 6.8 | 3000 | 500 | 0.1252 |
| 6.8 | 3000 | 1000 | 0.1789 |
| 6.8 | 3000 | 1500 | 0.2593 |
| 6.8 | 3000 | 2000 | 0.5889 |
From table 6, table 7, can learn: in the sour environment, under the synergy of available chlorine, Fe
3+The increase of concentration is to the corrodibility increase of carbon steel.Wherein, the synergy of available chlorine (3000mg/L) makes Fe equally
3+Content sharply rises to the corrodibility of carbon steel when 1500mg/L is above.
The erosion rate of table 8 pair carbon steel
| pH | ACC(mg/L) | [Fe 3+](mg/L) | Erosion rate (mm/a) |
| 2.0 | 3000 | 10 | 0.2078 |
| 2.0 | 3500 | 10 | 0.4563 |
| 2.0 | 3000 | 500 | 0.2792 |
| 2.0 | 3500 | 500 | 0.6531 |
| 2.0 | 3000 | 1000 | 0.3389 |
| 2.0 | 3500 | 1000 | 0.7156 |
| 2.0 | 3000 | 1500 | 0.4593 |
| 2.0 | 3500 | 1500 | 0.8321 |
| 2.0 | 3500 | 2000 | 1.4289 |
| 2.0 | 0 | 2000 | 0.1556 |
Table 9 slightly acidic environment is to the erosion rate of carbon steel
| pH | ACC(mg/L) | [Fe 3+](mg/L) | Erosion rate (mm/a) |
| 6.8 | 3000 | 10 | 0.0758 |
| 6.8 | 3500 | 10 | 0.2854 |
| 6.8 | 3000 | 500 | 0.1252 |
| 6.8 | 3500 | 500 | 0.4321 |
| 6.8 | 3000 | 1000 | 0.1789 |
| 6.8 | 3500 | 1000 | 0.5778 |
| 6.8 | 3000 | 1500 | 0.2593 |
| 6.8 | 3500 | 1500 | 0.7213 |
| 6.8 | 3500 | 2000 | 0.9289 |
| 6.8 | 0 | 2000 | 0.1456 |
Can learn from table 8, table 9: in the sour environment, available chlorine content is more than 3000mg/L (for example, in the time of 3500mg/L), with different content Fe
3+Synergy sharply rises to the corrodibility of carbon steel.
Corrosion test 2 is with reference to " version disinfection technology standard in 2008 "
Test materials 2, thimerosal, different Fe
3+The acid oxidation potential sterilized water of content.
The Calculation of corrosion rate is such as table 10.
Table 10 pair copper corrosion speed
| pH | ACC(mg/L) | [Fe 3+](mg/L) | Erosion rate (mm/a) |
| 2.0 | 0 | 100 | 0.0742 |
| 2.0 | 3 | 100 | 0.1238 |
| 2.0 | 3 | 750 | 0.2942 |
| 2.0 | 3 | 1500 | 0.3586 |
| 2.0 | 3 | 2000 | 0.8375 |
| 2.0 | 3000 | 100 | 0.2398 |
| 2.0 | 3000 | 750 | 0.3912 |
| 2.0 | 3000 | 1500 | 0.5678 |
| 2.0 | 3000 | 2000 | 1.6835 |
| 2.0 | 0 | 2000 | 0.1917 |
| 2.0 | 3500 | 100 | 0.5532 |
| 2.0 | 3500 | 1000 | 1.2115 |
From table 10, can learn: available chlorine and Fe
3+Synergy has increased solution to corrosion of metal.When available chlorine content is higher than 3mg/L, copper corrosion is significantly risen, and make Fe
3+Content is when 1500mg/L is above, to impatient acute rising of copper corrosion.Available chlorine content is more than 3000mg/L (for example, in the time of 3500mg/L), with Fe
3+Synergy significantly rises to the corrodibility of carbon steel.
Corrosion test 3 is with reference to " version disinfection technology standard in 2008 "
Table 11 pair Corrosion of Al speed
| pH | ACC(mg/L) | [Fe 3+](mg/L) | Erosion rate (mm/a) |
| 2.0 | 0 | 100 | 0.0798 |
| 2.0 | 3 | 100 | 0.1356 |
| 2.0 | 3 | 750 | 0.2825 |
| 2.0 | 3 | 1500 | 0.4759 |
| 2.0 | 3 | 2000 | 0.8932 |
| 2.0 | 3000 | 100 | 0.2198 |
| 2.0 | 3000 | 750 | 0.3878 |
| 2.0 | 3000 | 1500 | 0.5823 |
| 2.0 | 3000 | 2000 | 1.7145 |
| 2.0 | 0 | 2000 | 0.2156 |
| 2.0 | 3500 | 100 | 0.5539 |
| 2.0 | 3500 | 1000 | 1.4985 |
Can learn from table 11: available chlorine and Fe
3+Synergy has increased solution to corrosion of metal.When available chlorine content is higher than 3mg/L, Corrosion of Al is significantly risen, and make Fe
3+Content is when 1500mg/L is above, to impatient acute rising of Corrosion of Al.Available chlorine content is more than 3000mg/L (for example, in the time of 3500mg/L), with Fe
3+Synergy significantly rises to Corrosion of Al.
Acid oxidation potential sterilized water of the present invention can reduce corrosion of metal, thereby has enlarged range of application.Before use, A unit and the B unit of acid oxidation potential solution of the present invention are deposited separately, in the time will using, A unit and B unit are mixed again, and have solved the storage problem of acid oxidation potential sterilized water, and be very easy to use.In the process of preparation acid oxidation potential solution of the present invention, strengthened artificial controllability, can regulate according to the actual requirements pH value, available chlorine content and the redox potential of sterilized water.
More than disclosed only be several specific embodiments of the application, but the application is not limited thereto, the changes that any person skilled in the art can think of all should drop in the application's the protection domain.
Claims (14)
1. the preparation method of the acid oxidation potential sterilized water of a low-corrosiveness is characterized in that, may further comprise the steps:
(1) provides and to produce hydrionic A unit;
(2) provide the B unit that contains available chlorine or can produce available chlorine;
(3) described A unit is mixed with described B unit, obtain acid strong oxidizing property solution, the pH value of described acid strong oxidizing property solution is between 2-7, and its redox potential is not less than 700mV, its available chlorine content is 3-3000mg/L, and its ferric ion content is not higher than 1500mg/L.
2. the preparation method of the acid oxidation potential sterilized water of low-corrosiveness as claimed in claim 1 is characterized in that, also comprises in step (1): described A unit is carried out pre-treatment.
3. the preparation method of the acid oxidation potential sterilized water of low-corrosiveness as claimed in claim 1 is characterized in that, also comprises in step (2): described B unit is carried out pre-treatment.
4. the preparation method of the acid oxidation potential sterilized water of low-corrosiveness as claimed in claim 1 is characterized in that, also comprises in step (3): the mixed mixed solution in described A unit and described B unit is carried out aftertreatment.
5. such as the preparation method of the acid oxidation potential sterilized water of claim 2 or 3 or 4 described low-corrosiveness, it is characterized in that, the method of described processing can be selected from one or several in adding ferric ion deactivator, membrane separation process, electrochemical process, chromatography, absorption method or the ion exchange method, to remove the part ferric ion.
6. the preparation method of the acid oxidation potential sterilized water of low-corrosiveness as claimed in claim 1 is characterized in that, described A unit is acid.
7. the preparation method of the acid oxidation potential sterilized water of low-corrosiveness as claimed in claim 1, it is characterized in that, described B contains the unit one or more in double salt, chlorite or the available chlorine precursor substance of liquid chlorine, dioxide peroxide, hypochlorite, hypochlorite, and described available chlorine precursor substance refers to can generate with acid or water reaction the chlorine-bearing compound of available chlorine.
8. the preparation method of the acid oxidation potential sterilized water of low-corrosiveness as claimed in claim 1 is characterized in that, described B unit is neutral or alkaline.
9. the acid oxidation potential sterilized water of a low-corrosiveness is characterized in that, comprises A unit and the B unit of independent packing before using, and described A unit is for can produce hydrionic preparation; Described B unit is the preparation that contains available chlorine or can produce available chlorine, described A unit with obtain acid strong oxidizing property solution after described B unit mixes, the pH value of described acid strong oxidizing property solution is between 2-7, its redox potential is not less than 700mV, its available chlorine content is 3-3000mg/L, and its ferric ion content is not higher than 1500mg/L.
10. the acid oxidation potential sterilized water of low-corrosiveness as claimed in claim 9, it is characterized in that, described B contains the unit one or more in double salt, chlorite or the available chlorine precursor substance of liquid chlorine, dioxide peroxide, hypochlorite, hypochlorite, and described available chlorine precursor substance refers to can generate with acid or water reaction the chlorine-bearing compound of available chlorine.
11. the acid oxidation potential sterilized water of low-corrosiveness as claimed in claim 9 is characterized in that, described B unit is neutral or alkaline.
12. the acid oxidation potential sterilized water of a low-corrosiveness is characterized in that, the pH value of described sterilized water is between 2-7, and its redox potential is not less than 700mV, and its available chlorine content is 3-3000mg/L, and its ferric ion content is not higher than 1500mg/L.
13. the acid oxidation potential sterilized water of low-corrosiveness as claimed in claim 12 is characterized in that, contains one or several of mineral acid, organic acid, strong acid weak base salt, strong base-weak acid salt, weak acid and weak base salt or strong acid and strong base salt in the described sterilized water.
14. the acid oxidation potential sterilized water of low-corrosiveness as claimed in claim 12, it is characterized in that, available chlorine in the described sterilized water is by one or more generations of double salt, chlorite or the available chlorine precursor substance of liquid chlorine, dioxide peroxide, hypochlorite, hypochlorite, and described available chlorine precursor substance refers to can generate with acid or water reaction the chlorine-bearing compound of available chlorine.
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