Water-based agent for treating indoor air pollutant solid pollution source

Abstract

The invention discloses a water-based agent for treating a solid pollution source of indoor air pollutants. The water-based agent for treating the solid pollution source of the indoor air pollutants comprises the following components in percentage by weight: 1.53%-3.2% of sodium chlorite, 0.2%-2.8% of an acidifying agent, 0.13%-3.2% of a nonionic penetrant, 0.13%-3.2% of a nonionic active agent and the balance of deionized water. Sodium chlorite is used as a raw material to generate a chlorine dioxide solution under the acidic condition, microorganisms including bacterial propagules, bacterial spores, fungi, mycobacteria and viruses can be killed, the bacteria cannot generate drug resistance, chlorine dioxide has high adsorption and penetration capacity on microbial cell walls, and the effect of killing the bacteria is achieved. The microbial agent can effectively oxidize sulfenyl-containing enzyme in cells, can rapidly inhibit synthesis of microbial protein to destroy microorganisms, does not cause secondary pollution to the environment, can decompose organic pollutants into water and carbon dioxide, can oxidize the organic pollutants to convert the organic pollutants into harmless substances, and has the advantages of environmental protection and environmental protection. And benzene and aldehyde substances at indoor air pollution sources can be effectively removed.

Description

Technical Field

[0001] This invention relates to the field of indoor air pollution control technology, specifically to an aqueous agent for treating solid sources of indoor air pollutants and its preparation process. Background Technology

[0003] Chinese Patent Publication No. CN115090111A discloses a method for preparing and applying a formaldehyde remover for home use. The method involves steps such as solution preparation, oxidation treatment, photocatalyst addition, and additive addition to prepare a formaldehyde remover for home use with poly(1,2-phenylenediamine) oligomers as the main active ingredient and nano-titanium dioxide as an auxiliary ingredient. The application method involves directly spraying, coating, or soaking the formaldehyde-releasing pollutants onto furniture surfaces, cracks, and crevices. The poly(1,2-phenylenediamine) oligomers contain a large number of amino and imine groups, which readily undergo nucleophilic addition reactions with formaldehyde, allowing them to penetrate into the gaps, joints, or micro-indentations of furniture. The system captures formaldehyde released from small cracks, addressing formaldehyde pollution at its source. By employing green and environmentally friendly methods such as oxygen oxidation and hydrogen peroxide oxidation, the only byproducts are water or oxygen, achieving pollution-free production and a green and environmentally friendly effect. Adding titanium dioxide nanoparticles as photocatalyst particles further assists in formaldehyde removal; the small size of titanium dioxide provides an extremely high specific surface area, aiding in formaldehyde removal. By controlling the degree of polymerization of poly(1,2-phenylenediamine) between 3 and 10, its effectiveness in removing formaldehyde, high solubility, and low toxicity are all ensured.

[0004] However, the formaldehyde removal agents described in the comparative cases mainly rely on photocatalytic materials to form a coating on the surface of furniture, which can inhibit the release of formaldehyde and other pollutants. Trace amounts of these components are released and react with formaldehyde through added amino and imine groups, ultimately achieving formaldehyde removal. However, this approach does not target the solid pollution source itself. Its main method is to form a membrane, directly treating the free-state pollution source in the air, failing to address the root cause of indoor solid air pollutants. Indoor air pollution mainly includes two types: free-state pollutants and solid pollutants. Free-state pollutants are released from solid pollutants over a long period. Most existing technologies cannot target solid pollution sources, thus having limitations. Therefore, a water-based agent for treating solid indoor air pollutants and its preparation process urgently need to be developed. Summary of the Invention

[0005] The purpose of this invention is to provide an aqueous agent for treating solid sources of indoor air pollutants, which has the advantage of treating indoor pollutants at their source and solves the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: an aqueous agent for treating solid sources of indoor air pollutants, comprising the following formulation components: sodium chlorite 1.53%-3.2%, acidifying agent 0.2%-2.8%, nonionic penetrant 0.13%-3.2%, nonionic surfactant 0.13%-3.2%, and the remainder being deionized water.

[0007] A method for preparing an aqueous agent for treating solid sources of indoor air pollutants, characterized in that it comprises:

[0008] Step 1: Prepare sodium chlorite mixture. Take the sodium chlorite, acidifier and deionized water in the formula ratio, put them into a mixing tank and stir at 26 degrees Celsius. The speed is controlled at 100-200 revolutions per minute. Stir until the sodium chlorite is completely dissolved, then stop and let stand for 20 minutes before use.

[0009] Step 2: Take the nonionic penetrant, nonionic surfactant and deionized water in the formula ratio, stir at 26 degrees Celsius, control the speed to 100-200 revolutions per minute, and stop stirring when it is uniform.

[0010] Step 3: Mix the solution prepared in Step 2 with the sodium chlorite mixture a second time, place it in a stirring tank and stir at 26 degrees Celsius, with the speed controlled at 300-500 revolutions per minute.

[0011] Preferably, the acidifying agent comprises, but is not limited to, hydrochloric acid, sulfuric acid, and citric acid.

[0012] Preferably, when the acidifying agent is hydrochloric acid, the mass ratio of sodium chlorite to hydrochloric acid is 1:0.3.

[0013] Preferably, when the acidifying agent is sulfuric acid, the mass ratio of sodium chlorite to sulfuric acid is 1:0.2.

[0014] Preferably, when the acidifying agent is citric acid, the mass ratio of sodium chlorite to citric acid is 1:0.15.

[0015] Preferably, the main component of the nonionic penetrant is a condensation product of ethylene oxide and higher fatty alcohols.

[0016] Preferably, the nonionic surfactant is an alkyl glycoside.

[0017] A water-based agent for treating solid sources of indoor air pollutants includes an atomizing spraying device. The atomizing spraying device includes a storage tank, a booster pump is provided on one side of the bottom of the storage tank, the output end of the booster pump is connected to a connecting hose, the end of the connecting hose away from the booster pump is connected to a delivery arm, the end of the delivery arm away from the connecting hose is connected to an atomizing nozzle, and a switch is provided on the surface of the delivery arm, the switch being electrically connected to the booster pump.

[0018] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0019] This invention uses sodium chlorite as a raw material to generate chlorine dioxide solution under acidic conditions. This solution can kill microorganisms, including vegetative bacteria, bacterial spores, fungi, mycobacteria, and viruses, without causing antibiotic resistance. Chlorine dioxide has a strong adsorption and penetration ability on the cell walls of microorganisms, effectively oxidizing intracellular sulfur-containing enzymes and rapidly inhibiting the synthesis of microbial proteins to destroy microorganisms. It also causes no secondary pollution to the environment, decomposes organic pollutants into water and carbon dioxide, oxidizes organic pollutants to convert them into harmless substances, and effectively removes benzene and aldehydes from indoor air pollution sources. This water-based agent for treating solid indoor air pollutants has the function of addressing indoor pollutants at their source. When it comes into contact with solid indoor pollutants, it can effectively decompose the solid indoor pollutants, preventing them from volatilizing into the indoor air, thereby achieving the effect of fundamentally treating indoor air pollution. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of the present invention;

[0021] Figure 2 This is a rear-view stereoscopic diagram of the present invention;

[0022] Figure 3 This is a three-dimensional schematic diagram of the present invention on the right side;

[0023] In the diagram: 1. Medicine storage tank; 2. Booster pump; 3. Connecting hose; 4. Medicine delivery arm; 5. Atomizing nozzle; 6. Switch. Detailed Implementation

[0024] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0025] Example 1:

[0026] Please see Figure 1-3The present invention provides a technical solution: an aqueous agent for treating solid sources of indoor air pollutants, comprising the following formulation components: sodium chlorite 1.53%, hydrochloric acid 0.46%, nonionic penetrant 0.19%, nonionic surfactant 1.87%, and the remainder being deionized water.

[0027] A method for preparing an aqueous agent for treating solid sources of indoor air pollutants, comprising:

[0028] Step 1: Prepare sodium chlorite mixture. Take sodium chlorite, hydrochloric acid and deionized water in the formula ratio, put them into a mixing tank and stir at 26 degrees Celsius. The speed is controlled at 100 revolutions per minute. Stir until the sodium chlorite is completely dissolved, then stop and let stand for 20 minutes before use.

[0029] Step 2: Take the nonionic penetrant, nonionic surfactant and deionized water in the formula ratio, stir at 26 degrees Celsius, control the speed at 200 revolutions per minute, and stir for 10 minutes.

[0030] Step 3: Mix the solution prepared in Step 2 with the sodium chlorite mixture a second time, place it in a stirring tank and stir at 26 degrees Celsius with the speed controlled at 500 revolutions per minute.

[0031] In this invention, the main components of the nonionic penetrant are condensates of ethylene oxide and higher fatty alcohols.

[0032] The main function of nonionic penetrants, which are mainly composed of condensates of higher fatty alcohols, is to improve the performance of materials. By penetrating into the interior of an object, penetrants can change the surface properties of the object, improve the wettability, dispersibility and permeability of the material. At the same time, their components can play a role in waterproofing, moisture-proofing, stain prevention and corrosion prevention, effectively protecting building materials, extending their service life and reducing maintenance costs.

[0033] In this invention, the nonionic surfactant is an alkyl glycoside.

[0034] Alkyl glycosides, as nonionic surfactants, have low surface tension, good detergency, and good compatibility. They can be combined with various ionic and nonionic nonionic penetrants to produce synergistic effects.

[0035] Example 2:

[0036] A water-based agent for treating solid sources of indoor air pollutants includes an atomizing spraying device. The atomizing spraying device includes a storage tank 1, a booster pump 2 is provided on one side of the bottom of the storage tank 1, the output end of the booster pump 2 is connected to a connecting hose 3, the end of the connecting hose 3 away from the booster pump 2 is connected to a delivery arm 4, the end of the delivery arm 4 away from the connecting hose 3 is connected to an atomizing nozzle 5, and a switch 6 is provided on the surface of the delivery arm 4. The switch 6 is electrically connected to the booster pump 2.

[0037] A misting spraying device that uses a water-based agent to treat solid sources of indoor air pollutants.

[0038] Example 3:

[0039] A water-based agent for treating solid sources of indoor air pollutants, comprising the following formulation: 2.33% sodium chlorite, 0.44% sulfuric acid, 0.56% nonionic penetrant, 1.66% nonionic surfactant, and the remainder being deionized water.

[0040] A method for preparing an aqueous agent for treating solid sources of indoor air pollutants, comprising:

[0041] Step 1: Prepare sodium chlorite mixture. Take sodium chlorite, sulfuric acid and deionized water in the formula ratio, put them into a mixing tank and stir at 26 degrees Celsius. The speed is controlled at 100-200 revolutions per minute. Stir until the sodium chlorite is completely dissolved, then stop and let stand for 20 minutes before use.

[0042] Step 2: Take the nonionic penetrant, nonionic surfactant and deionized water in the formula ratio, stir at 26 degrees Celsius, control the speed at 200 revolutions per minute, and stir for 10 minutes.

[0043] Step 3: Mix the solution prepared in Step 2 with the sodium chlorite mixture a second time, place it in a stirring tank and stir at 26 degrees Celsius with the speed controlled at 500 revolutions per minute.

[0044] In this invention, the main components of the nonionic penetrant are condensates of ethylene oxide and higher fatty alcohols.

[0045] The main function of nonionic penetrants, which are mainly composed of condensates of higher fatty alcohols, is to improve the performance of materials. By penetrating into the interior of an object, penetrants can change the surface properties of the object, improve the wettability, dispersibility and permeability of the material. At the same time, their components can play a role in waterproofing, moisture-proofing, stain prevention and corrosion prevention, effectively protecting building materials, extending their service life and reducing maintenance costs.

[0046] In this invention, the nonionic surfactant is an alkyl glycoside.

[0047] In the present invention, there is also a method for verifying the overall performance test to verify whether the water quality after sample treatment meets the hygienic standard for domestic drinking water. The instrument and equipment include a gas chromatograph, an inductively coupled plasma mass spectrometer, an electrothermal constant temperature incubator, a laminar flow hood, a turbidimeter, a burette with a stopper, and an ultraviolet-visible spectrophotometer. The test water is 20 kg of purified water, and the test solution is prepared according to a ratio of 1:20 kg. The test solution is allowed to act for 5 minutes, and then the turbidity, iron, manganese, arsenic, cadmium, chromium (hexavalent), lead, mercury, total bacterial count, total coliforms, thermotolerant coliforms, chlorite, chlorate, trichloromethane and other indicators of the treated water are measured. By comparing with the requirements of GB 5749-2022 "Hygienic Standard for Domestic Drinking Water", it is determined whether each indicator is qualified.

[0048] In the present invention, there is also a method for verifying the acute oral toxicity test to evaluate the acute oral toxicity of the sample to experimental animals. The experimental animals are KM mice, with an equal number of males and females, weighing 18-22 g, and the breeding environment (temperature 20°C - 26°C, relative humidity 30% - 70%), feed and bedding. Sample preparation: Take a certain amount of the sample and prepare a stock solution with pure water, and then dilute it to the required concentration. Animal preparation: The animals are fasted overnight before the test without restricting water intake. Poisoning method: The maximum limit test is carried out once, and the dose is administered by gavage (5010 mg / kg·bw). Observe the poisoning manifestations, the number of deaths and the death time. Symptom observation: Observe the poisoning manifestations and the death situation of the animals after poisoning for 14 days. Toxicity evaluation: Determine the acute oral toxicity level of the sample according to the LD50 value.

[0049] In the present invention, there is also a method for verifying the intact skin irritation test to evaluate the irritation intensity of the sample to the skin of experimental animals. The experimental animals are New Zealand rabbits, male, weighing 2.0 - 2.5 kg, and the breeding environment is at a temperature of 16°C - 25°C and a relative humidity of 30% - 70%, with feed and bedding. Sample preparation: The same as the acute oral toxicity test. Animal preparation: 24 hours before the test, depilate the back skin of the animals with a depilatory agent. Poisoning method: Drop the test substance preparation solution on a gauze and apply it to the depilated skin surface, cover it with a non-irritating plastic film and fix it. Apply it for a certain time (4 hours). Symptom observation: Observe the local skin reaction at 1 hour, 24 hours and 48 hours after removing the test substance and score it. Evaluation criteria: Calculate the irritation index according to the skin irritation reaction scoring standard, evaluate the irritation intensity level, and record the skin irritation reaction scores and integral means at each time point.

[0050] In summary, this water-based agent for treating solid sources of indoor air pollution generates a chlorine dioxide solution under acidic conditions using sodium chlorite as a raw material. Chlorine dioxide's disinfection and sterilization properties can kill all microorganisms, including vegetative bacteria, bacterial spores, fungi, mycobacteria, and viruses, without inducing drug resistance. Chlorine dioxide has a strong adsorption and penetration ability on microbial cell walls, effectively oxidizing intracellular sulfur-containing enzymes and rapidly inhibiting microbial protein synthesis to destroy microorganisms. It can decompose organic matter such as pesticides, dyes, and paints without causing secondary pollution to the environment. It can decompose organic pollutants into water and carbon dioxide, oxidize organic pollutants, and convert them into harmless substances. It effectively removes benzene and aldehydes from the source of indoor air pollution. This water-based agent for treating solid sources of indoor air pollution has the function of addressing indoor pollutants at their source, effectively decomposing indoor pollutants and thus achieving the effect of treating indoor air pollution.

[0051] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0052] All electrical components mentioned in this article are connected to an external main controller and 220V AC mains power, and the main controller can be a conventional known device such as a computer that provides control.

[0053] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An aqueous agent for treating solid sources of indoor air pollutants, characterized in that: The formulation of an aqueous agent for treating solid sources of indoor air pollutants includes: sodium chlorite 1.53%-3.2%, acidifier 0.2%-2.8%, nonionic penetrant 0.13%-3.2%, nonionic surfactant 0.13%-3.2%, and the remainder being deionized water.

2. A method for preparing an aqueous agent for treating solid sources of indoor air pollution, characterized in that, include: Step 1: Prepare sodium chlorite mixture. Take the sodium chlorite, acidifier and deionized water in the formula ratio, put them into a mixing tank and stir at 26 degrees Celsius. The speed is controlled at 100-200 revolutions per minute. Stop stirring when the sodium chlorite is completely dissolved, let it stand for 20 minutes and wait for use. Step 2: Take the nonionic penetrant, nonionic surfactant and deionized water in the formula ratio, stir at 26 degrees Celsius, control the speed to 100-200 revolutions per minute, and stop stirring when the mixture is uniform. Step 3: Mix the solution prepared in Step 2 with the sodium chlorite mixture a second time, place it in a stirring tank and stir at 26 degrees Celsius, with the speed controlled at 300-500 revolutions per minute.

3. The aqueous agent for treating solid sources of indoor air pollutants according to claim 1, characterized in that: The acidifier comprises, but is not limited to, hydrochloric acid, sulfuric acid, and citric acid.

4. The method for preparing an aqueous agent for treating solid sources of indoor air pollutants according to claim 3, characterized in that: When the acidifying agent is hydrochloric acid, the mass ratio of sodium chlorite to hydrochloric acid is 1:0.

3.

5. The method for preparing an aqueous agent for treating solid sources of indoor air pollutants according to claim 3, characterized in that: When the acidifying agent is sulfuric acid, the mass ratio of sodium chlorite to sulfuric acid is 1:0.

2.

6. The method for preparing an aqueous agent for treating solid sources of indoor air pollutants according to claim 3, characterized in that: When the acidifying agent is citric acid, the mass ratio of sodium chlorite to citric acid is 1:0.

15.

7. The aqueous agent for treating solid sources of indoor air pollutants according to claim 1, characterized in that: The main components of the nonionic penetrant are condensates of ethylene oxide and higher fatty alcohols.

8. The method for preparing an aqueous agent for treating solid sources of indoor air pollutants according to claim 3, characterized in that: The nonionic surfactant is an alkyl glycoside.

9. The aqueous agent for treating solid sources of indoor air pollutants according to claim 1, characterized in that: The device includes an atomizing spraying device, which includes a medicine storage tank (1), a booster pump (2) is provided on one side of the bottom of the medicine storage tank (1), the output end of the booster pump (2) is connected to a connecting hose (3), the end of the connecting hose (3) away from the booster pump (2) is connected to a medicine delivery arm (4), the end of the medicine delivery arm (4) away from the connecting hose (3) is connected to an atomizing nozzle (5), and a switch (6) is provided on the surface of the medicine delivery arm (4), which is electrically connected to the booster pump (2).

10. The atomizing spraying equipment according to claim 9, characterized in that: The aqueous agent for treating solid sources of indoor air pollutants as described in any one of claims 1-8 is applied.

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