CN117430282A

CN117430282A - Preparation process of small molecular water

Info

Publication number: CN117430282A
Application number: CN202311650917.1A
Authority: CN
Inventors: 全秀薰
Original assignee: Individual
Current assignee: Individual
Priority date: 2023-12-04
Filing date: 2023-12-04
Publication date: 2024-01-23

Abstract

The application relates to the technical field of water treatment, in particular to a small molecular water preparation process, which comprises the following steps: performing first filtration on water to obtain filtered water; carrying out ultrasonic vibration treatment on the filtered water to obtain an intermediate product; performing second filtration on the intermediate product by using a nano film to obtain small molecular water; collecting the small molecular water in a sterile storage container, and performing water quality analysis on the small molecular water. Suspended matters, organic matters, residual chlorine, bacteria and heavy metal ions in water are effectively removed through multistage filtration and ultrasonic vibration treatment, and the purity and stability of the small molecular water are improved.

Description

Preparation process of small molecular water

Technical Field

The application relates to the technical field of water treatment, in particular to a small molecular water preparation process.

Background

The water molecules are combined through hydrogen bonds, the weak chemical bonds are hydrogen bonds formed by interaction between hydrogen atoms in the water molecules and oxygen atoms of adjacent water molecules, and the hydrogen bonds are weak chemical bonds, so that the water molecules are combined through the hydrogen bonds. Water molecules tend to cluster due to the presence of hydrogen bonds. These clusters may contain several to tens or even more water molecules. However, these clusters are very unstable and they can be rapidly formed and broken up, a phenomenon which is common in liquid water at normal temperature and pressure. Temperature, pressure, magnetic fields, sound waves, radiation, infrared light, and the presence of other substances (e.g., dissolved minerals or gases) can all affect the size and stability of water clusters.

Small molecule water refers to those water having smaller molecular clusters. At present, the small molecular water is applied to health and health products, drinking water, health supplements, water treatment equipment, skin care products, agricultural irrigation and sports drinks, and has wide application scenes.

Disclosure of Invention

Therefore, the patent provides a simple and convenient small molecule water preparation process, which comprises the following steps: performing first filtration on water to obtain filtered water; carrying out ultrasonic vibration treatment on the filtered water to obtain an intermediate product; filtering the intermediate product by using a nano film to obtain small molecular water; collecting the small molecular water in a sterile storage container, and performing water quality analysis on the small molecular water.

In some embodiments, the first filtration comprises precipitation, coarse filtration, activated carbon filtration, microfiltration, and nanomaterial filtration.

In some embodiments, the activated carbon-filtered filter material is made from one or more of charcoal, bamboo charcoal, fruit shells, and coal.

In some embodiments, the microfiltration filter material comprises a microporous filter membrane and a ceramic filter element.

In some embodiments, the nanomaterial-filtered filter material comprises a nanofiber material and a porous carbon material.

In some embodiments, the subjecting the water to ultrasonic vibration treatment comprises: and carrying out ultrasonic vibration treatment on the water for 10-60min through ultrasonic waves with the frequency of 20-40 kHz.

In some embodiments, the nanofilm includes a carbon nanotube film and a graphene-based film.

In some embodiments, the membrane pore size of the nanofilm is 1-2nm and the filtration pressure of the second filtration is 2-10 atmospheres.

In some embodiments, the material of the sterile storage container comprises food grade stainless steel and PET plastic.

In some embodiments, the water quality analysis includes detection of pH, conductivity, total dissolved solids, and heavy metal content of the small molecule water.

Drawings

FIG. 1 is a flow chart of a small molecule water preparation process according to some embodiments of the present invention;

FIG. 2 is a flow chart of a nano-film regeneration step according to some embodiments of the present invention;

FIG. 3 is a flow chart of a method for detecting E.coli according to some embodiments of the present invention.

In the figure: 1-;2-;3-;4-;5-;6-;7-;8-;9-;10-;11-;12-;13-;14-;15-;16-;17-;18-;19-; .

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments of the present invention. The components of the embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

The invention is further described with reference to the drawings and specific examples.

Referring to fig. 1-3, an embodiment of the present disclosure provides a simple and convenient process for preparing small molecular water, which includes the following steps:

s1, performing first filtration on water to obtain filtered water.

In some embodiments, the precipitate may be a sedimentation tank for natural sedimentation or to remove suspended matter by accelerating the sedimentation process.

In some embodiments, the precipitation process may be accelerated by adding specific flocculants, which may include aluminum or iron salts, to enhance the aggregation of suspended particles, thereby more effectively removing suspended matter.

In some embodiments, the coarse filtration may include a stainless steel screen and a filter lattice. The method is mainly used for removing larger suspended particles and impurities in water, such as sediment, rust residues and other large-particle substances. The pore size of the stainless steel screen and the filter lattice can be 5-10 μm to remove large particulate matters.

In some embodiments, the filter component of the activated carbon filter may include a filter material and an activated carbon support material. The filter material can be prepared from charcoal, bamboo charcoal, fruit shell (such as coconut shell) and coal by high-temperature processing, has extremely high surface area, and can effectively adsorb harmful substances in water. The thickness of the filtering material can be 3-5cm. The activated carbon support material may be a non-reactive material such as stainless steel for securing the support structure of the filter material. By setting the activated carbon for filtration, organic substances, residual chlorine, peculiar smell and certain trace chemical substances in the water can be removed.

Microfiltration (Microfi ltrat ion) is a physical filtration technique used to remove particulates such as bacteria, suspended solids, algae, protozoa, etc. from liquids.

In some embodiments, the microporous filter membrane may be made of a polymeric material, such as polypropylene, polythioether, polytetrafluoroethylene, and the like. In some embodiments, the pore size of the microporous filter membrane may be 0.1-10 μm. In some embodiments, the microporous filter membrane may be pre-humidified to enhance its efficiency of capturing small particles in water.

In some embodiments, the ceramic filter element may be made of materials including natural minerals and synthetic materials. Wherein the natural minerals may comprise alumina, which may have a pore size of 0.5-1 μm and a thickness of 3-5cm. The ceramic filter element made of alumina can remove tiny particles and certain microorganisms. In some embodiments, the ceramic filter element may be a ceramic filter element that has been subjected to a particular surface treatment, such as silver plating or other antimicrobial treatment, to enhance its filtration of bacteria and microorganisms. The special surface treatment not only improves the filtering efficiency, but also prolongs the service life of the ceramic filter element and reduces the frequency of maintenance and replacement.

In some embodiments, the nanomaterial-filtered filter material comprises a nanofiber material and a porous carbon material. In some embodiments, the nanofiber material may include polyvinylidene fluoride (PVDF) and polypropylene (PP). In some embodiments, the porous carbon material may include activated carbon fibers.

Through carrying out multistage filtration to water, can get rid of suspended solid, organic matter, residual chlorine and bacterium, promote quality of water, improve the efficiency of getting rid of tiny particle and pollutant, ensure uniformity and the stability of quality of water and reduce filtration system's maintenance cost and frequency.

S2, carrying out ultrasonic vibration treatment on the filtered water to obtain an intermediate product.

In some embodiments, the water may be sonicated for 10-60 minutes by ultrasonic waves having a frequency of 20-40 kHz.

Through carrying out ultrasonic treatment to the filtered water, ultrasonic mechanical oscillation can produce the shearing force, breaks the hydrogen bond in the hydrone cluster. In addition, as the time of mechanical oscillation goes on, the water temperature is further increased, and the heat energy can break the hydrogen bond among water molecules, so that the entropy of the water molecule clusters is increased, and the mess is improved. And the small molecular cluster water, namely the small molecular water, is prepared by the synergistic effect of the mechanical shearing force and the heat energy.

In some embodiments, after the ultrasonic vibration treatment, the water may be allowed to stand still to return to normal temperature, so as to reduce the influence on the subsequent steps.

In some embodiments, the parameters of the sonication may be different for different types of water sources. For example, for ultrasonic vibration treatment of groundwater, since groundwater generally contains different levels of minerals and natural impurities, parameter adjustments for ultrasonic vibration treatment can be focused on higher frequencies and long-term vibrations. Specifically, the treatment is performed for 50-60min using a frequency of 30-40kHz to effectively break up mineral aggregates and organic substances in water. As another example, for tap water, since tap water is typically subjected to preliminary treatment, but may contain chlorine and other disinfection byproducts, the sonication treatment may be focused on shorter treatment times and medium frequencies. In particular, the water may be treated for 30-45 minutes using a frequency of 25-35kHz to remove chlorine and other chemicals while retaining essential minerals in the water.

S3, performing second filtration on the intermediate product by using the nano film to obtain the small molecular water.

In some embodiments, the nanofilm may include carbon nanotube films and graphene-based films.

Carbon nanotube films (CNTs) are mainly composed of carbon nanotubes, which are a material curled into a tubular structure from single-layer or multi-layer graphene. Carbon nanotubes can be classified into single-walled carbon nanotubes (SWCNTs) and multi-walled carbon nanotubes (MWCNTs) depending on the number of layers of the tube, depending on the structure. The intermediate product is filtered by the carbon nanotube film, so that pollutants such as heavy metal ions and organic matters in the intermediate product can be removed.

Graphene-based films are mainly composed of graphene, which is a single-layer material formed by arranging carbon atoms in a honeycomb shape in a two-dimensional plane. Graphene-based films are formed by stacking or combining single-layer graphene sheets and can be prepared by various chemical and physical methods.

In some embodiments, the surface of the graphene-based film may be chemically modified or functionalized to enhance its selective adsorption and removal capabilities for specific contaminants. For example, the adsorption capacity for heavy metal ions can be improved by introducing functional groups such as hydroxyl groups and carboxyl groups on the surface of the graphene-based film by oxidation treatment. In addition, the pore size of the graphene-based film can be precisely controlled by adjusting parameters (such as temperature, time and gas flow rate) in a Chemical Vapor Deposition (CVD) process so as to meet different filtering requirements.

In some embodiments, graphene-based films may be prepared by: growing a graphene monolayer on a copper or nickel substrate using a chemical vapor deposition technique; removing the metal substrate by a wet chemical etching method to obtain a graphene-based film; transferring the graphene-based film to a required substrate material through a transfer process; and (3) carrying out subsequent treatment by using a chemical cross-linking agent or a physical adsorption method, so that the structural stability and the filtration efficiency of the graphene-based membrane are enhanced.

In some embodiments, the nanomembrane has a membrane pore size of 1-2nm and the second filtration has a filtration pressure of 2-10 atmospheres.

The nano film is used for carrying out second filtration on the intermediate product, so that residual tiny particles, heavy metal ions, organic matters and other possible pollutants can be effectively removed, and the safety and stability of the small molecular water are ensured. In addition, the use of the nano film also improves the filtration efficiency, reduces the production cost, and simultaneously retains minerals and elements beneficial to human bodies in water through the highly selective filtration performance of the nano film, thereby providing more excellent and healthy drinking water.

In some embodiments, the nanofilm may be regenerated by washing, including the steps of:

s301, washing the nano film by using deionized water.

In some embodiments, the flow rate of deionized water may be 0.3-1.5L/min to avoid damaging the nanofilm. The flow velocity can not only effectively wash the membrane surface, but also ensure the integrity and the filtering effect of the nano-film.

In some embodiments, deionized water flow rates may be precisely controlled based on the physical properties of the nanofilm. For example, for more fragile nanofilms, the flow rate needs to be reduced to 0.3L/min to prevent membrane breakage due to water flow impingement. Accordingly, for stronger nanofilms, the flow rate may be increased to 1.5L/min to achieve more efficient rinsing.

S302, cleaning the nano film through an organic solvent.

In some embodiments, the organic solvent may include ethanol, acetone, methanol, and the like. The organic solvent can remove organic pollutants on the nano film which are difficult to remove by deionized water.

S303, washing the nano film again through deionized water.

In some embodiments, the flow rate of deionized water in step S303 should be 1.0-2.0L/min. The flow rate can ensure that residual organic solvent attached to the nano film is thoroughly cleaned, and other impurities possibly introduced in the cleaning process can be removed, so that the cleanliness and the filtering performance of the nano film are ensured, and the service life of the nano film is prolonged.

S304, air-drying the nano film through air flow.

In some embodiments, the air drying temperature may be 26-40℃and the air flow rate may be 0.5-1.5m/s. This parameter setting ensures rapid drying of the nanofilm without damaging its structure. In some embodiments, the parameters of the air flow drying may also include control of the relative humidity, for example, the relative humidity may be 5-15% to prevent the introduction of new impurities during the drying process due to excessive ambient humidity. In addition, the direction of the air flow can be adjusted according to the placement mode of the nano film so as to realize uniform drying.

S4, collecting the small molecular water in a sterile storage container, and performing water quality analysis on the small molecular water.

In some embodiments, the material of the sterile storage container includes food grade stainless steel and PET plastic.

In some embodiments, the analysis frequency of the water quality analysis may be performed once after each batch of small molecule water is produced, or according to a daily, weekly or monthly periodic detection schedule, which may ensure that the quality of the small molecule water is always in an optimal state. In some embodiments, the analysis frequency of the water quality analysis may be triggered based on a specific water quality change indicator in addition to a production lot or time interval. For example, if several consecutive tests find a significant change in conductivity, the frequency of the tests may be increased to more closely monitor the change in water quality.

The pH value detection can ensure the acid-base balance of water, and has good biocompatibility; the conductivity detection can reflect the ion concentration in the water and indicate the purity of the water; the detection of the total dissolved solids can evaluate the total amount of dissolved substances in water and reflect the overall quality of the water; the heavy metal content is detected to ensure that harmful metal elements such as lead and mercury in water are at a safe level and ensure the water safety.

In some embodiments, the water quality analysis of the small molecule water may also include microbiological testing to ensure that the water does not contain pathogens or microbiological content that exceeds safety standards. For example, detection of microorganisms such as bacteria, viruses, fungi, and protozoa.

In some embodiments, the microbial test may include an e. Specifically, the method for detecting escherichia coli may include:

s401, randomly extracting samples from small molecule water. In particular, the sampling volume may be 100ml while ensuring sterility of the sampling container to avoid cross contamination.

S402, inoculating a water sample onto the culture medium, and placing the water sample into an incubator.

In some embodiments, the incubation temperature may be 35-37℃and the incubation time may be 24-48 hours. The medium may comprise macConkey medium or EMB medium which is effective in promoting the growth of E.coli while inhibiting the growth of other non-target bacteria.

S403, after a sufficient time of culture, observing colonies on the culture medium. Coli will typically form red or pink colonies on MacConkey medium and metallic colonies on EMB medium.

S404, performing a further biochemical test on the suspicious colony to confirm whether the suspicious colony is Escherichia coli. Such as indole test, methyl red test, voges-Proskauer test, citrate test, and the like.

S405, calculating the number of escherichia coli in the water sample according to the culture result.

In some embodiments, performing water quality analysis on the small molecule water may also include organic compound testing. The organic compound test can be performed on organic pollutants possibly contained in water, such as pesticide residues, industrial chemicals, drug residues and the like. Specifically, the test can be performed using high-precision instruments such as High Performance Liquid Chromatography (HPLC), gas chromatography-mass spectrometry (GC-MS), and the like.

In some embodiments, step S5 is further included before step S4.

S5, ultraviolet disinfection treatment is carried out on the filtered water, so that bacteria and viruses in the water can be effectively removed, and the microbial safety of water quality is improved. Ultraviolet lamp with specific wavelength, such as 254nm, can be used for ultraviolet disinfection to ensure high-efficiency microorganism killing effect.

It should be noted that in this document, relational terms such as "first" and "second" and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises an element.

Finally, it should be noted that: the foregoing description is only of the preferred embodiments of the invention and is not intended to limit the scope of the invention. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The preparation process of the small molecular water is characterized by comprising the following steps of:

performing first filtration on water to obtain filtered water;

carrying out ultrasonic vibration treatment on the filtered water to obtain an intermediate product;

performing second filtration on the intermediate product by using a nano film to obtain small molecular water;

collecting the small molecular water in a sterile storage container, and performing water quality analysis on the small molecular water.

2. The small molecule water manufacturing process of claim 1 wherein the first filtration comprises precipitation, coarse filtration, activated carbon filtration, microfiltration, and nanomaterial filtration.

3. The process for preparing small molecular water according to claim 2, wherein the activated carbon-filtered filter material is made of one or more of charcoal, bamboo charcoal, fruit shell and coal.

4. The process for preparing small molecular water according to claim 2, wherein the microfiltration filter material comprises a microporous filter membrane and a ceramic filter element.

5. The process for preparing small molecular water according to claim 2, wherein the filtering material for nano-material filtration comprises a nano-fiber material and a porous carbon material.

6. The process for preparing small molecular water according to claim 1, wherein the ultrasonic vibration treatment of the water to obtain an intermediate product comprises:

and carrying out ultrasonic vibration treatment on the water for 10-60min through ultrasonic waves with the frequency of 20-40 kHz.

7. The process for preparing small molecule water of claim 1 wherein said nanofilm comprises carbon nanotube films and graphene-based films.

8. The process for preparing small molecular water according to claim 7, wherein the membrane pore size of the nano-film is 1-2nm and the filtration pressure of the second filtration is 2-10 atm.

9. The small molecule water manufacturing process of claim 1 wherein the materials of the sterile storage container comprise food grade stainless steel and PET plastic.

10. The process for preparing small molecular water according to claim 1, wherein the water quality analysis comprises detecting pH, conductivity, total dissolved solids and heavy metal content of the small molecular water.