JP5678000B2 - Washing water production method - Google Patents

Description

  The present invention relates to a sterilizing cleaning water for electrolytic anodic water and a method for producing cleaning water using cathodic water.

  In general, a high concentration of a surfactant is mainly used for cleaning an oil surface or the like. In addition, a cleaning solution to which high-concentration sodium hydrogen carbonate is added is used for cleaning proteins and other soils.

  Furthermore, in a method for solving the washing of oil, electrolysis is performed using a high concentration of sodium hydrogen carbonate, and it is used as a detergent having a pH of 12.5.

On the other hand, in disinfection and sterilization performed in fields such as hygiene management of food and environmental hygiene in medicine, disinfection and sterilization using sodium hypochlorite solution and the like is performed in addition to alcohol. Sodium hypochlorite Although the aqueous solution is also in the following patent document, it can be obtained by subjecting saline to electroless membrane electrolysis.
JP 2011-230076 A

  The sodium hypochlorite aqueous solution is prepared by, for example, installing an electrode pair composed of an anode and a cathode in an electrolytic cell in which an aqueous solution obtained by adding salt (sodium chloride) as an electrolysis auxiliary agent to tap water or the like is stored. By providing a diaphragm between the electrodes and electrolyzing the aqueous solution under a predetermined condition, strong acidic electrolyzed water (SAW) is generated on the anode side and strong alkaline on the cathode side. Electrolyzed water is generated (so-called diaphragm electrolysis).

  In the strongly acidic electrolyzed water generated on the anode side, chlorine (CL) is dissolved, and hypochlorite containing this chlorine (HOCL) sterilizes microorganisms such as various viruses and fungi. It is known to exert a cleaning / disinfecting action.

Patent Document 2 below was invented by the present inventor and relates to sterilized electrolyzed water having a specific pH value and a specific electrical conductivity value, and in particular, a method for producing a large amount of this sterilized electrolyzed water. And an apparatus thereof.
Japanese Patent No. 2626778

  This Patent Document 2 is acidic water obtained by adding a water-soluble ionizable inorganic substance to raw water and electrolyzing it, and has a pH value of 1.5 to 3.1 and is acidic after electrolysis. The difference between the electric conductivity of water and the electric conductivity of water before electrolysis in which a water-soluble ionizable inorganic substance is added to the raw water is 200 to 14,120 μS / cm.

  As described above, when sodium chloride is used as the ionizable inorganic substance, the anodized water electrolyzed with sodium chloride is excellent in bactericidal property with a hypochlorous acid concentration of 30 to 60 ppm. While 27.3 ppm has the property of being erased in an instant, and exhibits sterilization friendly to pollution, chlorine gas is present at 40 ppm or more, so the problem of rusting in kitchen facilities and hospital facilities, and the respiratory organs of the human body There are obstacles to and there are pollution problems.

  In addition, the use of a high-concentration surfactant for cleaning the oil level and the like means that in the case of a detergent in which a surfactant is mixed in water at 1% or less, the detergent is only immersed in the oil level for 4 to 12 hours. There is little expectation for washing oil.

  In addition, the washing solution with high-concentration sodium hydrogen carbonate added to water has a low cleaning effect on proteins and oils. Furthermore, electrolysis is performed using high-concentration sodium hydrogen carbonate to obtain a pH: 12.5 detergent. In the method of solving the cleaning of the oil when used, there is a risk of roughening the skin such as hands due to high pH.

  It is said that sodium bicarbonate and sodium carbonate are mixed and electrolyzed as an electrolyte solution, and the produced anode water and cathode water are mixed and used as a detergent. It took a long time to remove and clean the oil.

  Such a high-concentration carbonate cleaning solution has a thin cleaning effect by simply “immersing in the oil surface”, and a long cleaning time is required. Therefore, in order to practically use detergents for oils and proteins related to hygiene management, in recent years, environmentally friendly detergents are required in the eco era.

The object of the present invention is to eliminate the inconvenience of the conventional example, and both electrolytic positive water and electrolytic cathode water can be used as a detergent, and chlorine gas (CL ₂ ) can be erased. An object of the present invention is to provide a method for producing washing water that can provide washing water that can contribute to hygiene management because the washing efficiency of protein and oil is good.

In order to achieve the above object, according to the present invention of claim 1, the electrolyte solution comprises sodium chloride mixed with sodium sulfate or / and carbonates containing at least one of sodium carbonate and sodium hydrogen carbonate, and has an electric conductivity of 300. Chlorine-free gas (CL ₂ ) in which a solution adjusted to ˜1000 μS / cm was electrolyzed at 7 to 15 A by direct current application to flowing water of 2 L / min through a diaphragm, and hypochlorous acid in the anode water was present. Washing water containing 0.1 to 1% of fatty acids for selecting one of fatty acid potassium, fatty acid sodium, and fatty acid alkanolamide was added to the anodic water in which hypochlorous acid was present. The gist is to obtain water .

According to the first aspect of the present invention, the anodized water electrolyzed using sodium chloride as the electrolyte solution becomes acidic water, and 30 to 60 ppm of hypochlorous acid is present, and 40 ppm of chlorine gas (CL ₂ ) is generated. Therefore, electrolysis using sodium sulfate or carbonates produces chlorine-free gas, and hypochlorous acid is present in an amount of 30 to 60 ppm, so that a bactericidal effect is recognized.

Moreover, the washing effect of oil becomes high by mixing with fatty acids using the solution electrolyzed with sodium hydrogencarbonate or sodium carbonate of carbonates. Mixed with fatty acids and used as washing water in kitchen facilities and hospital facilities.

According to the second aspect of the present invention, the electrolyte solution is adjusted to an electric conductivity of 300 to 1000 μS / cm by mixing sodium sulfate and / or carbonates containing at least one of sodium carbonate and sodium hydrogen carbonate into sodium chloride. The solution is electrolyzed at 7 to 15 A with a direct current applied to flowing water of 2 liters per minute through a diaphragm, and the fatty acid for selecting one kind of fatty acid potassium, fatty acid sodium, and fatty acid alkanolamide is 0.1 to The gist is to add 1% to obtain washing water.

According to the second aspect of the present invention are those used for the cleaning action of the cathode water, there are hydroxide ions (OH ^I), further, by reaction with hydroxide ions is added a good fatty acids It can be applied as washing water.

The gist of the present invention described in claim 3 is that the electrolyte solution contains at least one selected from sodium chloride, sodium sulfate, potassium chloride, calcium chloride, and magnesium chloride .

According to the third aspect of the present invention, the electrolyte solution can be selected from sodium chloride, sodium sulfate, potassium chloride, calcium chloride, and magnesium chloride in addition to sodium chloride. It may be a mixture of one or more kinds of sodium hydrogen, and the fatty acids can be selected from one kind of fatty acid potassium, fatty acid sodium, and fatty acid alkanolamide.

As described above, the method for producing cleaning water of the present invention has an excellent cleaning effect for both electrolytic positive water and electrolytic cathode water, and contributes to hygiene management because it has good cleaning efficiency for dirt proteins and oils. Moreover, since chlorine gas (CL ₂ ) can be erased, consideration for the environment and the human body is high.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 1 shows a production apparatus used in the method for producing washing water of the present invention. Reference numeral 1 denotes an electrolysis chamber, which is divided into an anode chamber 3 and a cathode chamber 4 by a diaphragm 2, and the anode chamber 3 has an anode side. An anode potential 3a is applied by the terminal, and a cathode potential 4a is applied to the cathode chamber 4 by the cathode side terminal.

The diaphragm 2 allows Ca ⁺⁺ , Mg ⁺ , Na ⁺ , K ^{+ and the} like to pass from the anode chamber 3 to the cathode chamber 4, and allows Cl ⁻ , SO ₄ ⁻ , HCO ₃ ^{− and the} like to pass from the cathode chamber 4 to the anode chamber 3. Since the anode potential 3a and the cathode potential 4a are applied with a predetermined voltage, acid water is separated into the anode chamber 3 and alkaline water is separated into the cathode chamber 4 by electrolysis. Will be.

  The electrolysis chamber 1 electrolyzes the electrolyte solution, and tap water is introduced through the pressure reducing valve 5, and the electrolyte solution is fed from the electrolyte solution tank 6 by the pump 7.

  In addition, fatty acid is added from the fatty acid liquid tank 8 to the anode water obtained in the anode chamber 3 by the pump 7 and stored in the anode sterilization washing water tank 9.

  In addition, fatty acid is added from the fatty acid liquid tank 10 to the cathode water obtained in the cathode chamber 4 by the pump 7 and stored in the cathode washing water tank 11.

  The electrolyte solution fed from the electrolyte solution tank 6 contains one or more selected from sodium chloride, sodium sulfate, potassium chloride, calcium chloride, and magnesium chloride, and carbonates added thereto include sodium carbonate and hydrogen carbonate. One or more kinds of sodium are mixed.

  As the fatty acids fed from the fatty acid liquid tank 8 and the fatty acid liquid tank 10, one kind of fatty acid potassium, fatty acid sodium, and fatty acid alkanolamide is selected.

  In the present invention, as an electrolyte solution, for example, sodium sulfate or / and carbonates are mixed with sodium chloride, and the electric conductivity is adjusted to 300 to 1000 μS / cm. Electrolyze at 7-15A by application.

Then, the obtained anodic water is adjusted to pH 2.7 or less, sterilization with hypochlorous acid (HOCL) is determined, chlorine-free gas (CL ₂ ) treatment is performed, and 1% or less nonionic fatty acid is added to the anodic water. Mix alkanolamide to obtain sterilized washing water.

  The cathode water is mixed with a low concentration of potassium fatty acid having a pH of 11 or more and good reaction with a hydroxyl group (OH) at 1% or less to obtain reducing wash water.

  When electrolysis is performed using sodium chloride as an electrolyte solution, chlorine gas and hypochlorous acid are generated. Therefore, chlorine-free gas is obtained by electrolyzing sodium sulfate with sodium chloride in the electrolyte solution.

  Here, elimination of chlorine gas by electrolytic anodic water will be described. Since anodic water for electrolysis using sodium chloride may cause pollution by chlorine gas (40 ppm), the electrolyte solution can be either sodium sulfate or sodium carbonate or sodium hydrogen carbonate. It is possible to determine the chlorine gas erasing action of the anode water by electrolyzing with. Therefore, the elimination of chlorine gas has the problem that it can be solved by the reaction of carbonates in addition to sodium sulfate according to the following formula.

(1) When electrolysis is performed using sodium chloride + sodium sulfate.
^{NaCl → Na + + Cl - ...} 1
2Cl ⁻ → C1 ₂ … 2
_{Cl 2 + H 2 0 ≒ HCl} + HOCl ≒ HCl + H + + OCl - ... 3
Na ₂ SO ₄ → 2Na ⁺ + SO ²⁻ ₄ 4
Na ⁺ + OCl ⁻ → NaOCl 5
2H ₂ O → H ₂ O ₂ + 2H ⁺ + 2e ⁻ ... 6
3H ₂ O → O ₃ + 6H ⁺ + 6e ⁻ ... 7
O ₃ + OCl → 2O ₂ + Cl ⁻ ... 8
The above reaction mainly occurs, and HOCl generated by the formula Cl ₂ + H ₂ 0≈HCl + HOCl≈HCl + H ⁺ + OCl ⁻ is generated by electrolysis of sodium sulfate. Also, a small amount of ozone is generated by 3H ₂ O → O ₃ + 6H ⁺ + 6e ⁻ , dissociated OCl ions are consumed, and the equilibrium of C1 ₂ + H ₂ 0≈HC1 + HOC1≈HC1 + H ⁺ + OC1 ⁻ equation moves to the left, and chlorine gas It is thought to decrease. The rate of decrease depends on the amount of ozone generated. If the above content is expressed by another formula, it is explained by the following formula and there is no chlorine gas.
NaSO ₄ + HOCL + H ₂ 0 → NaHS 0 ₄ + H ₂ O ₂
(2) When electrolysis is performed using sodium chloride + sodium carbonate.
^{NaCl → Na + + Cl - ...} 1
2Cl ⁻ → Cl ₂ … 2
_{Cl 2 + H 2 0 ≒ HCl} + HOCl ≒ HCl + H + + OCl - ... 3
^{_{Na 2 C0 3 → 2Na + +}} CO 2- 3 ... 4
_{^{HC0 3 - ≒ H + + CO}} 2- 3 ... 5
_{^{CO 2- 3 + H 2 0 →}} HCO - 3 + OH - ... 6
Na ⁺ + OCl ⁻ → NaOCl 7
Occur Lord above _{^{reaction, CO 2- 3 + H 2 0}} → HCO - 3 + OH - carbonate ions raises the apparent pH to generate an OH ion deprives proton from water by hydrolysis of the formula, the presence of HOCl It is thought that the abundance ratio of chlorine gas became lower and the odor disappeared as the ratio increased.
Expressing the above contents in another formula, it is explained by the following formula, and sodium carbonate reacts with HOCl to produce sodium hydrogen carbonate, and there is no chlorine gas.
NaCO ₂ + HOCl + H ₂ O → NaHCO ₂ + 20 NaCL + H ₂ O
(3) When electrolysis is performed using sodium chloride + sodium bicarbonate.
^{NaCl → Na + + Cl - ...} 1
2C1 ⁻ → C1 ₂ … 2
_{Cl 2 + H 2 0 ≒ HCl} + HOCl ≒ HCl + H + + OCl - ... 3
_{^{CO 2- 3 + H 2 0 →}} HCO - 3 + OH - ... 4
NaHCO ₃ + HCl → NaC1 + H ₂ CO ₃ ... 5
H ₂ CO ₃ + H ₂ O → H ₂ O + CO ₂ ↑ 6
Na ++ OCl → NaOC1... 7
2H ₂ O → 4H ⁺ + 4e ⁻ + O ₂ ↑… 8
Occur Lord above _{^{reaction, CO 2- 3 + H 2 O}} → HCO - 3 + OH - carbonate ions raises the apparent pH to generate an OH ion deprives proton from water by hydrolysis of the formula, the presence of HOCl It is thought that the presence of chlorine gas became lower and the odor disappeared as the ratio increased. Expressing the above contents as a separate expression, sodium bicarbonate reacts with hydrochloric acid in the anode water to produce carbon dioxide and no chlorine gas.
NaHCO ₃ + HCL → NaCL + CO ₂ + H ₂ O

When the electrolytic solution is electrolyzed, the pH decreases on the anode side to form an acid, and the pH increases on the cathode side to form an alkali. The change in pH at this time is due to the concentration of hydrogen ions, H ^+, and hydroxide ions, OH ⁻ , and depends on the concentration of anions and cations, which are counter ions, and is caused by the solute. As a result, the ionic product of water is changed by electrolysis. As a result, the degree of dissociation of water increases and oils and fats are well dissolved.

As described above, the reason for selecting electrolytic cathodic water as the detergent is as follows. The difference between the ordinary water and cathode water is considered the role of hydroxide ion (OH ^I). Therefore, when the difference is obtained from the ionic product of water, the dissociation degree p (IP) of the general ionic product of water is represented by the following equation:
[H ⁺ ] [OH ⁻ ] = [10 ⁻⁷ ] = 10 ¹⁴ (mol / l) ²
Since 14 (mol / l) ^{2 is} constant, when the hydroxide ion (OH ⁻ ) is expressed as an index, it is [10−7], so the functionality of water is small. However, the dissociation degree p (IP) of the ionic product of strongly electrolyzed cathode water is given by the following equation:
[H ⁺ ] [OH ⁻ ] = [10 ⁻⁶ ] [10 ⁻⁶ ] = 10 ¹² (mol / l) ²
Since it is dissociated from 12.7 to 12, it can be considered that the functionality is 10 times as high as [10 ⁻⁶ ] when the hydroxyl ion is expressed by an index. Furthermore, in terms of the whole water, it is considered that the hydroxyl ion concentration is about 100 times higher than that of general water. The table shown in FIG. 2 represents “relationship between pH and p (IP) in electrolyzed water”.

In general, the chemical pH is expressed by artificially dividing the hydrogen ion concentration into 14 levels. The neutrality in this case is 7. However, the electrolyzed solution expresses that the neutrality becomes 6 when the dissociation degree is 12. Furthermore, when the cathode water of strong electrolyzed water is neutralized and observed with the chemical substance hydrochloric acid (HCL), the following formula is obtained:
NaOH + HCL + 10OH ⁻ = H ₂ O + NaCL + 10 OH ⁻
There is a dissociated hydroxyl group (OH ¹ ) in salt water, and it has a role to promote potassium and fatty acid which reacts well with alkaline substances for use in detergents, and has a different meaning from general water.

Moreover, when neutralizing properties with hydrochloric acid in the cathode water and chemicals (Kaseisoda) to pH11 as in the graph shown in FIG. 3, it dissociated OH ^one is expressed in about 30% higher concentration. Therefore, cathodic water is applied as washing water by adding fatty acids that have good reaction with hydroxide ions because of the presence of hydroxide ions (OH ⁻ ) and dissolved hydrogen (H ₂ ) and exhibiting reducibility. It has different characteristics from water and is expected to be applied according to the purpose.

If the graph of FIG. 3 is expressed by a schematic diagram, it can be considered as shown in FIG. That is, since the pH of the cathode water is expressed by a combination of caustic soda + dissociated OH ⁻ , the portion indicated by ⇔ has about 30% OH ⁻ , so the cathode water is a chemical caustic soda. The pH of the concentration is actually considered thin.

Therefore, OH ^{− obtained} by neutralizing cathodic water with hydrochloric acid is expressed as NaCL + OH ^−, and cathodic water is expected to be mainly composed of hydroxyl group (OH ⁻ ) in salt water.

The reason for choosing electrolytic anodized water as the detergent is as follows.
The anodized water electrolyzed using sodium chloride as the electrolyte solution becomes acidic water, and 30 to 60 ppm of hypochlorous acid is present, and 40 ppm of chlorine gas (CL ₂ ) is generated. Therefore, by electrolysis using sodium sulfate or carbonates, it becomes chlorine-free gas. Hypochlorous acid is present at 30 to 60 ppm, and the bactericidal effect is recognized. Mixing with fatty acids can be used as washing water in kitchen facilities and hospital facilities. used.

When the acidic water of the anode water is neutralized with caustic soda (NaOH) after setting the anode water and the chemical substance (hydrochloric acid) to pH 3 as shown in the graph of FIG. 5, the dissociated hydrogen ions (H ⁺ ) Thus, it is expressed at a high concentration of about 30%.

Therefore, in order to use anodized water as a detergent, it is considered possible to use the nonionic fatty acid alkanolamine. In other words, this graph can be expressed as a schematic diagram as shown in FIG. Therefore, neutralized ^{H +} is expressed as NaCL + ^{H +,} anode water is the action of hydrogen ions ^{(H +)} in brine is expected to mainly.

  In addition, the detergent (washing water) according to the present invention has its washing ability dramatically improved by dispersing fatty acids in electrolyzed water.

The fatty acid detergent was manufactured from pine and palm fruit detergents when the electrolyte solution was determined from the role of fatty acids by adding low-concentration fatty acids to the electrolytically generated water in which sodium carbonate or sodium sulfate was mixed with carbonates. There are anionic (OH ⁻ ) surfactant fatty acid potassium and nonionic surfactant fatty acid alkanolamide. Fatty acid potassium is made from palm fat and alkaline water to produce soap and glycerin.

  As for the glycerin, the surfactant becomes a fatty acid. The interfacial agent is alkaline and has an effect, and has a role of sticking to oil and dirt. On the other hand, nonionic surfactants include fatty acid alkanolamides that act as surfactants by reacting with oils, but are expected to be washed more by mixing with fatty acid potassium. It has good foaming, quick defoaming, and has an expected role as an eco-detergent.

Taking advantage of these characteristics of fatty acids and activating cleaning using extremely fine fatty acids, activation of cleaning is expected by using the dispersing power of carbonates, so carbonates are mixed in the electrolyte solution. It is obtained by adding fatty acids to the electrolyzed anode water. It can also be obtained by mixing carbonates in the electrolyte solution and adding very small fatty acids to the anion (OH ⁻ ) of the electrolyzed cathode water, activating the cleaning effect in hygiene management and improving the cleaning ability. Improve dramatically.

The results of a basic experiment on the oil cleaning functionality using carbonates are as follows.
Objective) To check the characteristics with a water storage type electrolyzer.

結果）塩化ナトリウムと硫酸ナトリウムとは、電解特性は同等であることが示された。 (1) Difference between anodic water (OX) and cathodic water (ReD) by electrolysis of sodium chloride and sodium sulfate ORP (oxidation-reduction potential): oxidation is represented by + potential and reduction is represented by one potential.
Capacity: 500 cc of water is added to both electrode chambers and 0.5 g of each substance is added for electrolysis.

Results) It was shown that sodium chloride and sodium sulfate have equivalent electrolytic characteristics.

(2) Conditions for cleaning effect of oil obtained by adding potassium fatty acid to a solution obtained by electrolysis of sodium chloride or sodium sulfate)
1. Comparison of OX and ReD.
Add 3 cc of fatty acid potassium to a 2,500 cc solution.
3. Check the cleaning time by applying oil to the pallet and immersing the detergent in the pallet.
result)
Washing time of oil in which 3 cc of fatty acid potassium is added to the aqueous solution produced by electrolysis using sodium chloride: No effect on OX and ReD after 10 minutes.
-Washing time of oil obtained by adding 3 cc of fatty acid potassium to aqueous solution generated by electrolysis using sodium sulfate: No effect on OX and ReD after 10 minutes.
In other words, it was found that even if fatty acid potassium was added to the produced water that was simply electrolyzed with the electrolyte solution, no oil cleaning effect was expected in a short time.

(3) Detergency effect of oil obtained by adding fatty acid alkanolamine to a solution electrolyzed with sodium chloride ... Comparison condition of OX and ReD)
1. Comparison of characteristics in sodium chloride solution.
2. Fatty acid alkanolamine is 3 cc.
3. Electrolysis of 0.5 g of sodium chloride in 500 cc of water.
4. Check the cleaning time by applying oil to the pallet and immersing the detergent in the pallet.
Cleaning effect after adding 3 cc of fatty acid alkanolamine to 500 cc of aqueous solution of sodium chloride after electrolysis: OX has a dissolution effect in 3 minutes, and ReD has a slightly dilute peeling in 10 minutes, but no cleaning effect.
When 0.5 g of sodium hydrogen carbonate is added to 200 cc of the aqueous solution after electrolysis of sodium chloride and 3 cc of fatty acid alkanolamine is added: OX has a cleaning effect in 3 minutes) ReD has a cleaning effect in 5 minutes.
When 0.5 g of sodium carbonate is added to 200 cc of the resulting aqueous solution of sodium chloride after electrolysis and 3 cc of fatty acid alkanolamine is added: ReD has a cleaning effect in 4 minutes. OX has a cleaning effect in 8 minutes.
When 0.5 cc of sodium carbonate and sodium bicarbonate is added to 200 cc of the aqueous solution after electrolysis of sodium chloride, 3 cc of fatty acid alkanolamine is added: ReD has a cleaning effect in 6 minutes. OX has a cleaning effect in 9 minutes.
That is, when fatty acid alkanolamine was added to electrolytically generated water by adding sodium carbonate or sodium hydrogen carbonate, the cleaning effect of oil was shown in a short time compared to fatty acid potassium.

(4) Test by electrolysis of 0.5 g of sodium bicarbonate and 0.5 g of sodium sulfate. ... electrolyze at 500 cc.
-Addition of 2 cc of fatty acid potassium to 200 cc of the resulting aqueous solution: No effect of OX and ReD.
2 cc of fatty acid alkanolamine is added to 200 cc of the resulting aqueous solution: OX has a cleaning effect in 5 minutes, and ReD has a cleaning effect in 10 minutes.

(5) Test by electrolysis of 0.5 g of sodium chloride, 0.5 g of sodium bicarbonate and 0.5 g of sodium carbonate. ... electrolyze at 500 cc.
-Addition of 2 cc of fatty acid potassium to 200 cc of aqueous solution: OX has a cleaning effect in 6 minutes. ReD has a cleaning effect in 10 minutes.
-Add 2 cc of fatty acid alkanolamine to 200 cc of aqueous solution: OX has a cleaning effect in 3 minutes and ReD has a cleaning effect in 3 minutes.

  In order to demonstrate the effect of the present invention, fatty acids were mixed into a solution obtained by adding carbonates to an electrolyte solution using an electrolysis apparatus and electrolyzing at 2 L / min, and the oil was washed with cathode water or anode water.

  There are sesame oil, olive oil, salad oil, etc., but sesame oil and olive oil can be easily mixed with electrolytic cathodic water and dispersed, but salad oil cannot be dispersed with water. It was.

Five drops of salad oil were applied to an aluminum pallet, and electrolyzed water was dipped to determine the characteristics of oil peeling and washing time.
(1) The electrolyte solution was a solution prepared by mixing sodium carbonate with sodium chloride and sodium sulfate and adjusting the electric conductivity to 300 to 1000 μS / cm, and electrolyzing the flowing water of 2 L / min with a DC application of 10 A through the diaphragm. When 3 cc (0.6%) of fatty acid potassium was added to a 500 cc solution of cathode water at pH 11.58, the pH was 11.61, and the oil peeling / cleaning effect was 6 minutes.
(2) The electrolyte solution was sodium carbonate and sodium sulfate mixed with sodium carbonate, and the solution was adjusted to an electric conductivity of 300 to 1000 μS / cm. The pH was 7.48 obtained by adding 3 cc (0.6%) of fatty acid potassium to a 500 cc solution of the anode water at pH 6.11, and the oil peeling / cleaning effect was 1 hour or more.
(3) The electrolyte solution was sodium carbonate and sodium sulfate mixed with sodium carbonate, and was electrolyzed with a direct current application of 10 A against running water of 2 L / min through a diaphragm with a solution adjusted to an electric conductivity of 300 to 1000 μS / cm. A pH of 11.58 was obtained by adding 3 cc (0.6%) of a fatty acid alkanolamine to a pH of 11.58 of the cathode water, and the oil peeling / cleaning effect was 1 hour or more.
(4) The electrolyte solution was sodium carbonate and sodium sulfate mixed with sodium carbonate, and was electrolyzed with a direct current application of 10 A against running water of 2 L / min through a diaphragm with a solution adjusted to an electric conductivity of 300 to 1000 μS / cm. A pH of 7.78 was obtained by adding 3 cc (0.6%) of a fatty acid alkanolamide to a 500 cc solution of anodized water at pH 6.11, and the oil peeling / cleaning effect was 16 minutes.
(5) The electrolyte solution is a solution prepared by mixing sodium hydrogen carbonate with sodium chloride and sodium sulfate, and adjusting the electric conductivity to 300 to 1000 μS / cm. The pH was 11.75 by adding 3 cc (0.6%) of fatty acid potassium to a 500 cc solution to pH 9.51 of the cathodic water, and the oil peeling / cleaning effect was 11 minutes.
(6) The electrolyte solution is a solution in which sodium bicarbonate is mixed with sodium chloride and sodium sulfate, and the electric conductivity is adjusted to 300 to 1000 μS / cm. The pH was 6.8 by adding 3 cc (0.6%) of fatty acid potassium to 500 cc solution to pH 2.55 of the anode water, and the oil peeling / cleaning effect was 50 minutes.

  From the above results, carbonates were added to the electrolyte solution, and fatty acid was mixed with the cathodic water and the anodic water of the electrolyzed solution to determine the oil peeling / cleaning effect. When the fatty acid potassium was mixed with the cathode water, the pH was 11.61 to 11.75, and the oil peeling / cleaning effect was 6 to 11 minutes.

  This indicates that the fatty acid potassium has a good reaction with the hydroxyl group OH, and the cleaning effect by the dispersing action is shown. Further, when the fatty acid potassium was mixed with the anodized water, the pH was 7.48, and the oil peeling / cleaning effect required 1 hour or more. However, when fatty acid alkanolamide was mixed, the effect was recognized in 16 minutes. This was a non-ionic fatty acid because it was buffered by hydrogen ions in anodic water. From the above, oil stripping and cleaning are expected to be put into practical use by mixing fatty acid potassium with cathodic water, and are expected to be put into practical use as sterilizing cleaning water by mixing fatty acid alkanolamide with anode water. Indicated.

  ATP wipe inspection is performed using a Lumitester PD for various hygiene controls using a solution in which fatty acid alkanolamide is added to the anode water and a solution in which potassium potassium is added to the cathode water. What is ATP wiping inspection? By measuring the amount of ATP contained in a large amount of dirt in kitchens, etc., it is possible to check and manage numerically whether or not things and places that should be clean are really clean. Is the method.

  In addition, Lumitester PD was used because the number of bacteria decreased as the ATP value decreased. The management standard is a reject zone for 2000 or more, a caution zone for 2000 to 1000, and a pass zone for 1000 or less. The anodic water cleaning solution was cleaned with a solution obtained by adding 6 cc of fatty acid alkanolamide to 1 L.

The cathode water was washed with a solution of 6 cc of fatty acid potassium added to 1 L, and the anode water and the cathode water were compared. As for the cleaning method, the values in the case of cleaning with a new sponge are shown in Table 2 below.

  As a result, all the cleaning actions of the anode water and the cathode water were 1000 or less and passed. As for the cutting board, refrigerator side / bottom, sink, dishcloth, etc., oil such as fish and meat is present, so care must be taken with general detergents, but cleaning of anode water and cathode water has a high oil cleaning effect. Therefore, all the characteristics are shown to be acceptable.

The characteristics of the bactericidal effect in the anodized water will be described.
(1) 9 cc of a purely cultured Escherichia coli solution prepared by adding 6 cc of fatty acid alkanolamine to 1 L of hypochlorite concentration adjusted to pH 2.7 by mixing sodium carbonate with sodium sulfate and electrolyzing sodium carbonate The sterilizing effect is shown in Table 3 below after mixing 1 cc of 4.5 × 10 ⁶ bacteria.

  As a result, even when fatty acid alkanolamine was mixed with anodized water, the bactericidal effect of Escherichia coli was obtained because hypochlorous acid was present.

(2) 9 cc of a solution of 6 cc fatty acid alkanolamine added to 1 L of hypochlorous acid concentration adjusted to pH 2.7, mixed with sodium carbonate electrolyzed with sodium chloride and sodium sulfate, adjusted to pH 2.7, and purely cultured Table 1 below shows the bactericidal effect obtained by mixing 1 cc of 6.3 × 10 ⁶ S. aureus bacteria.

  From the above results, E. coli and S. aureus have a bactericidal effect because hypochlorous acid is present even in solutions in which sodium carbonate or sodium hydrogen carbonate is mixed with the electrolyte solution and fatty acids are added. It is.

  Manufacture of the detergent by an electrolysis production | generation apparatus is manufactured in the following aqueous circuits. Tap water is supplied to tap water at a constant flow rate using a pressure reducing valve, and an electrolyte solution tank is supplied to tap water using a metering pump.

  A solution in which an electrolyte solution is mixed with tap water flows into the anode chamber and the cathode chamber of the electrolytic cell, and a potential of (+) is applied to the anode electrode and a potential of (-) is applied to the cathode electrode, and direct current is applied to perform electrolysis. I do.

  Fatty acid alkanolamine stored in a fatty acid liquid tank is drawn into and mixed with the generated anode water by a metering pump (P), and stored and used as a sterilized washing water tank. On the other hand, the cathode water is manufactured by an apparatus of a method in which fatty acid potassium stored in a fatty acid liquid tank is drawn and mixed by a metering pump (P) and stored in a cathode washing water tank.

It is explanatory drawing which shows the manufacturing apparatus used for the manufacturing method of the washing water of this invention. It is a table | surface which shows the relationship between pH in electrolyzed water, and p (IP). It is a graph which shows the neutralization characteristic of a cathode water and a chemical substance (caustic soda). FIG. 4 is a schematic explanatory diagram of FIG. 3. It is a graph which shows the neutralization characteristic of an anode water and hydrochloric acid. FIG. 6 is a schematic explanatory diagram of FIG. 5.

DESCRIPTION OF SYMBOLS 1 ... Electrolytic chamber 2 ... Diaphragm 3 ... Anode chamber 3a ... Anode potential 4 ... Cathode chamber 4a ... Cathode potential 5 ... Pressure reducing valve 6 ... Electrolyte solution tank 7 ... Pump 8 ... Fatty acid liquid tank 9 ... Anode sterilization washing water tank 10 ... Fatty acid Liquid tank 11 ... Cathode cleaning water tank

Claims (3)

The electrolyte solution is sodium sulfate and / or sodium carbonate and / or carbonates that are mixed with one or more of sodium carbonate and sodium bicarbonate, and is adjusted to an electric conductivity of 300 to 1000 μS / cm. Electrolysis at 7 to 15 A with direct current applied to the flowing water of the water to obtain clean water of chlorine-free gas (CL ₂ ) in which the hypochlorous acid in the anode water was present, and the hypochlorous acid in the anode water was present A method for producing washing water, comprising adding 0.1 to 1% of fatty acids for selecting one kind of fatty acid potassium, fatty acid sodium, and fatty acid alkanolamide to the anodized water . The electrolyte solution is sodium sulfate and / or sodium carbonate and / or carbonates that are mixed with one or more of sodium carbonate and sodium bicarbonate, and is adjusted to an electric conductivity of 300 to 1000 μS / cm. Washing water is obtained by electrolysis at 7 to 15 A with direct current applied to the flowing water of the water, and adding 0.1 to 1% of fatty acids that select one of fatty acid potassium, fatty acid sodium, and fatty acid alkanolamide to the cathode water. The manufacturing method of the washing water characterized by the above-mentioned. The method for producing washing water according to claim 1 or 2, wherein the electrolyte solution contains one or more selected from sodium chloride, sodium sulfate, potassium chloride, calcium chloride, and magnesium chloride .

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