Bromine type physiotherapy water and preparation method thereof

Abstract

The invention provides bromine type physiotherapy water and a preparation method thereof, and belongs to the field of health care. The method for preparing the bromine type physiotherapy water comprises the following steps: (1) taking bromine-containing thermal spring water, and adjusting the pH value to 6-8; and (2) evaporating and concentrating the thermal spring water of which the pH is adjusted in the step (1) to 20-50 times of concentration multiple, so as to obtain the bromine type physiotherapy water. According to the present invention, the bromine type physical therapy water meeting the physical therapy hot mineral water standard is prepared by using the specific preparation method, the physical therapy water has the high physical therapy component content and the high beneficial component content, has the great potential in the physical therapy effect, meets the underground water quality standard IV type standard, and has the good safety as the bath water. The invention provides a basic scientific theory support for using the hot spring concentrated solution as a bath therapy agent substitute product, provides an innovative thought for solving the problems of single hot spring development and utilization form, unreasonable hot spring industry structure, serious resource waste and the like, and promotes the high-valued and high-quality development of the hot spring industry.

Description

TECHNICAL FIELD

[0001] The present application belongs to the field of health care, and particularly relates to a bromine type physiotherapy water and a preparation method thereof. BACKGROUND

[0002] Hot spring is a kind of precious geothermal resource, which has the characteristics of rich resource reserves, rich in various minerals, high physiotherapy value, green, clean and renewable. At present, the development and utilization of hot spring mainly focuses on traditional bathing therapy, so the utilization efficiency of hot spring resource is very low. In recent years, the state has paid great attention to the development and utilization of geothermal water, but due to the problem of excessive fluorine content (>2mg / L) in some hot springs, it cannot be directly made into mineral water for sale, so the utilization of hot spring in spring, summer and autumn is reduced, and it is necessary to explore the possibility of making it into other hot spring physiotherapy products.

[0003] The original physiotherapy effect of hot spring water is mostly passively dependent on the composition and characteristics of hot spring water, and its more potential treatment functions have not been fully developed. Although the physiotherapy effect of hot spring has been applied to a certain extent, the improvement and deep development of physiotherapy components in hot spring water are still insufficient. Therefore, how to effectively extract, improve and utilize the physiotherapy components in hot spring water and improve the utilization rate of hot spring resource has become an important issue to be solved.

[0004] Bromine type physiotherapy water is a kind of underground mineral water containing high concentration of bromine ions, and the content of bromine ions reaches or exceeds a certain standard. According to the "geothermal resource geological exploration specification", the bromine ion concentration reaching 5mg / L or more can be identified as bromine type physiotherapy water with medical value. Bromine type physiotherapy water has good medical and health care value, such as promoting metabolism, relieving muscle fatigue, improving skin condition, assisting in the treatment of diseases, etc. If hot spring can be prepared into bromine type physiotherapy water, it has important significance for its development and utilization. However, there is no report on preparing hot spring into bromine type physiotherapy water at present. SUMMARY

[0005] The present application aims to provide a bromine type physiotherapy water and a preparation method thereof.

[0006] The present application firstly provides a method for preparing bromine type physiotherapy water, which comprises the following steps:

[0007] (1) taking bromine containing hot spring water, adjusting pH to 6-8;

[0008] (2) evaporating and concentrating the hot spring water with adjusted pH in step (1) to 20-50 times of concentration multiple, to obtain bromine type physiotherapy water.

[0009] Further, in step (1), the pH is adjusted to 8;

[0010] And / or, in step (2), the method of evaporation concentration is water bath evaporation concentration or hot air evaporation concentration.

[0011] Further, the pH adjustment uses HCl and NaOH adjustment.

[0012] Preferably, the pH adjustment uses 0.1M HCl and 0.1M NaOH adjustment.

[0013] Further, the temperature of the water bath evaporation concentration is 90-100℃; the stirring speed is kept at 100-300r / min during the water bath evaporation concentration;

[0014] The temperature of the hot air evaporation concentration is 100-120℃.

[0015] Further, the temperature of the water bath evaporation concentration is 100℃; the stirring speed is kept at 200r / min during the water bath evaporation concentration;

[0016] The temperature of the hot air evaporation concentration is 120℃.

[0017] Further, in step (2), the concentration is to 50 times of the concentration multiple.

[0018] Further, the bromine-containing hot spring water is Lushan hot spring water.

[0019] Further, the Lushan hot spring water is hot spring water exploited by No.3 well or No.7 well of Jiangxi Lushan Xingzi Lushan Hot Spring Water Co., Ltd.; the drilling depth of the No.3 well is 206m, and the drilling depth of the No.7 well is 524m.

[0020] Preferably, when the Lushan hot spring water is hot spring water (ZK3) exploited by No.3 well of Jiangxi Lushan Xingzi Lushan Hot Spring Water Co., Ltd., the evaporation concentration method is water bath evaporation concentration or hot air evaporation concentration; when the Lushan hot spring water is hot spring water (JK7) exploited by No.7 well of Jiangxi Lushan Xingzi Lushan Hot Spring Water Co., Ltd., the evaporation concentration method is water bath evaporation concentration.

[0021] The application further provides a bromine type physiotherapy water prepared by the aforementioned method.

[0022] The application further provides the use of the aforementioned bromine type physiotherapy water in preparing bathing water.

[0023] Compared with the prior art, the application has the following beneficial effects:

[0024] The application provides a bromine type physiotherapy water prepared from hot spring as raw material, and adopts a specific preparation method to prepare the bromine type physiotherapy water which meets the physiotherapy hot mineral water standard, and the physiotherapy water has high physiotherapy component and beneficial component contents, has great potential in physiotherapy effect, and meets the underground water quality standard IV standard, and has good safety as bathing water.

[0025] Obviously, according to the above content of the application, according to the ordinary technical knowledge and common means in the art, other various forms of modification, replacement or change can be made without departing from the above basic technical idea of the application.

[0026] The above content of the application is further explained in detail through the embodiment form. However, it should not be understood that the above subject matter of the application is limited to the following examples. The technology realized based on the above content of the application belongs to the scope of the application. BRIEF DESCRIPTION OF DRAWINGS

[0027] Figure 1 Finger print diagrams of physiotherapy components of Lushan hot spring under different initial pH values of hot spring water: (a) ZK3-pH value is 4; (b) ZK3-pH value is 5; (c) ZK3-pH value is 6; (d) ZK3-pH value is 8; (e) JK7-pH value is 4; (f) JK7-pH value is 5; (g) JK7-pH value is 6; (h) JK7-pH value is 8.

[0028] Figure 2 Finger print diagrams of physiotherapy components of Lushan hot spring under different initial pH values of hot spring water: (a) ZK3-pH value is 4; (b) ZK3-pH value is 5; (c) ZK3-pH value is 6; (d) ZK3-pH value is 8; (e) JK7-pH value is 4; (f) JK7-pH value is 5; (g) JK7-pH value is 6; (h) JK7-pH value is 8.

[0029] Figure 3 Finger print diagrams of physiotherapy components of Lushan hot spring under different initial pH values of hot spring water: (a) ZK3-pH value is 4; (b) ZK3-pH value is 5; (c) ZK3-pH value is 6; (d) ZK3-pH value is 8; (e) JK7-pH value is 4; (f) JK7-pH value is 5; (g) JK7-pH value is 6; (h) JK7-pH value is 8.

[0030] Figure 4The water chemical parameter change graphs under different initial pH values of the hot spring water are as follows: (a) ZK3, JK7-pH value is 4; (b) ZK3, JK7-pH value is 5; (c) ZK3, JK7-pH value is 6; (d) ZK3, JK7-pH value is 8. DETAILED DESCRIPTION

[0031] Unless otherwise specified, the raw materials and devices used in the detailed description of the present application are known products, which are obtained by purchasing commercially available products.

[0032] The Lushan hot spring water used in the present application is respectively sourced from the hot spring water mined by No. 3 well (ZK3) and No. 7 well (JK7) of Jiangxi Lushan Xingzi Lushan Hot Spring Water Co., Ltd. The drilling depths of ZK3 and JK7 are 206 m and 524 m respectively. When sampling, the sampling barrels (bottles) are first soaked and flushed with the target hot spring for 3 times, and it is ensured that the hot spring water is full, overflowed, and the air is discharged before being sealed with a waterproof film to avoid air mixing. The collection and storage of the samples are strictly performed according to the “Water Sampling Technology Guidance” (HJ494-2009) and the “Technical Regulations for Preservation and Management of Water Quality Samples” (HJ493-2009).

[0033] The analysis and test methods involved in the present detailed description are as follows:

[0034] The components of H2SiO3, Na + , Ca 2+ , K + , Mg 2+ , etc. in the water sample are determined by using an inductively coupled plasma optical emission spectrometer Agilent5100ICP-OES; Fe, Mn 2+ , Zn 2+ , Sr 2+ , Li + , conventional heavy metals, etc. are determined by using an inductively coupled plasma mass spectrometer ICP-MS: PerkinElmer NexION 300X; Br - , F - , SO4 2- , Cl - , etc. are determined by using an ICS-1100 type ion chromatograph; HCO3 - and CO3 2- , etc. are determined by using a Hach multi-parameter digital titrator through a standard titration procedure; the pH and Eh in the process of the indoor concentration condition experiment are determined by using an FE28 type Mettler pH meter; the temperature is measured by using an MIK-TP101 type probe type digital thermometer (range-50-300℃), and the TDS is determined by using an EZ-011 type TDS water quality detection pen.

[0035] The field water sample analysis result is checked by using cation and anion balance formula, and the result shows that the maximum allowed difference absolute value of the field data is less than or equal to 5%, and the reliability of the water quality analysis result is ensured.

[0036]

[0037] Data processing:

[0038] The present application mainly adopts Excel 2016 for data preprocessing, and the drawing of the drawings of the present application is realized by Origin2022 software. The acidification before the water chemical analysis test can cause dilution of the solution, and in order to effectively determine the ion content, the true result needs to be calculated according to the test result, and the calculation method is shown as formula (2):

[0039]

[0040] In the formula: C-actual ion concentration, mg / L;

[0041] C1-instrument test ion concentration, mg / L;

[0042] V1-water sampling volume, mL;

[0043] V2-sample volume after acidification, mL.

[0044] Example 1, preparation of bromine type physiotherapy water of the present application

[0045] The bromine type physiotherapy water is prepared by using water bath evaporation concentration method, and the specific method is as follows:

[0046] 500mL JK7 hot spring water is taken in a beaker, the beaker is placed in a water bath, the experimental environment temperature is kept at 25±0.5℃, the magnetic stirring speed is kept at 200r / min, and the water bath temperature is set at 100±0.5℃; 0.1M HCl and 0.1M NaOH are used to adjust the pH value of the hot spring water to 8±0.1. The hot spring water is evaporated by water bath to reach 50 times of concentration multiple, and bromine type physiotherapy water is obtained. At this time, the Br - concentration of the bromine type physiotherapy water is 5.72mg / L, which reaches the medical value concentration standard (>5.00mg / L).

[0047] Example 2, preparation of bromine type physiotherapy water of the present application

[0048] The bromine type physiotherapy water is prepared by using hot air evaporation concentration method, and the specific method is as follows:

[0049] Take 500 mL ZK3 hot spring water in a beaker, place the beaker in an electric heating constant temperature drying oven, set the temperature of the electric heating constant temperature drying oven to 120±0.5℃, adjust the pH value of the hot spring water to 8±0.1 with 0.1M HCl and 0.1M NaOH, and evaporate the hot spring water with hot air to achieve a 50-fold concentration ratio, i.e. to obtain bromine type physiotherapy water. At this time, the Br - concentration in the bromine type physiotherapy water is 5.14 mg / L, reaching the medical value concentration standard (>5.00 mg / L).

[0050] The beneficial effects of the present application are demonstrated by the following specific test examples.

[0051] Test Example 1, Condition Screening for Preparing Bromine Type Physiotherapy Water by Water Bath Evaporation Concentration Method

[0052] Take 500 mL Lushan hot spring water (JK7 hot spring water or ZK3 hot spring water) in a beaker, place the beaker in a water bath, keep the experimental environment temperature at 25±0.5℃, and keep the magnetic stirring speed at 200 r / min, set the water bath temperature at 100±0.5℃; adjust the pH value of the hot spring water to 4±0.1, 5±0.1, 6±0.1, 8±0.1 with 0.1M HCl and 0.1M NaOH, and explore the influence of the initial pH value of the hot spring water on the physiotherapy components of the concentrated solution. When the Lushan hot spring water is magnetically stirred and heated to evaporate to a specific concentration ratio (i.e. 2-fold, 5-fold, 10-fold, 20-fold, 50-fold), immediately measure the water chemical parameters such as temperature (T), pH, oxidation-reduction potential (Eh), and total dissolved solids (TDS) of the hot spring water, and take 10 mL of the solution for detection of physiotherapy components and other anions and cations in the hot spring water.

[0053] (1) Physiotherapy component change rule analysis

[0054] Figure 1 To draw the Lushan hot spring physiotherapy component fingerprint under different initial pH values of the hot spring water. During the entire water bath evaporation concentration experiment, the concentrations of various physiotherapy components showed an upward trend, and the concentration effects of various physiotherapy components were influenced to different degrees by the initial pH value of the hot spring water and the concentration ratio. Figure 1 (a)~(d) are Lushan ZK3 hot spring water as the water source, Li + increased from 0.40 mg / L to 3.84 mg / L (see Figure 1 (a)), Br - increased from 1.72 mg / L to 5.72 mg / L (see Figure 1 (d)), Sr 2+ increased from 0.03 mg / L to 0.64 mg / L (see Figure 1 (a)), and H2SiO3 increased from 73.11 mg / L to 1673.71 mg / L (see Figure 1(d)), F - from 6.09 mg / L to 247.84 mg / L (see Figure 1 (d)).

[0055] Figure 1 (e)-(h) are the physiotherapy components in the water body of Lushan JK7 hot spring, Li + from 0.16 mg / L to 4.38 mg / L (see Figure 1 (e)), Br - from 1.97 mg / L to 5.72 mg / L (see Figure 1 (h)), Sr 2+ from 0.01 mg / L to 0.55 mg / L (see Figure 1 (g)), H2SiO3 from 73.32 mg / L to 1514.93 mg / L (see Figure 1 (e)), F - from 8.68 mg / L to 295.75 mg / L (see Figure 1 (h)). It can be seen that the physiotherapy components Br - , H2SiO3 obtained by the concentration experiment with Lushan ZK3 hot spring and Lushan JK7 hot spring as the water source have the same maximum concentration, the physiotherapy components Sr 2+ obtained by the concentration experiment with Lushan ZK3 hot spring as the water source have a higher maximum concentration, and the physiotherapy components Li + , F - obtained by the concentration experiment with Lushan JK7 hot spring as the water source have a higher maximum concentration.

[0056] The H2SiO3, F - concentrations in the solutions obtained after the water body is concentrated by 2 times, 5 times and 10 times under different initial pH conditions are basically the same, the H2SiO3, F - concentrations in the solutions obtained after the water body is concentrated by 20 times and 50 times have little difference, and it can be concluded that when the H2SiO3 concentration is higher than 1000.00 mg / L and the F - concentration is higher than 200.00 mg / L, the H2SiO3, F - concentrations in the water body tend to be stable, and the change amplitude becomes small. Li + , Br - , Sr 2+ concentrations are not stably increased with the increase of the concentration multiple. For example, the Li + concentration in the solution obtained after the water body is concentrated by 2 times is lower than the Li + concentration in the original hot spring water (see Figure 1 (a), (b) and (d)), the Br -The concentration of Br in the original hot spring water is lower than that in the original hot spring water. - concentration (see) Figure 1 (a), (b), (c), (e), (f), (g), and (h)) Sr in solutions obtained after concentration in water by 2, 5, 10, 20, and 50 times. 2+ Concentration and Sr in the original hot spring water 2+ The concentrations were similar (see Figure 1(d) and (h)). Overall, the water bath evaporation method can reduce the concentration of Li. + ,Br - H2SiO3, F - It achieves a concentration effect, but cannot achieve the desired effect on Sr. 2+ Concentration, even after water is concentrated 50 times, Sr 2+ The concentration is still below 1.00 mg / L, suggesting that during the concentration process, Sr... 2+ It readily reacts with SO4 in water. 2- CO3 2- Anions react.

[0057] Br - The concentration effect is most obvious in an alkaline environment, with the water source being ZK3 or JK7 hot spring water, the initial pH value being 8, and the concentration factor being 50 times (see...). Figure 2 Br reaches its maximum value at (d) and (h)). - The concentration was 5.72 mg / L, which meets the medical value concentration standard (>5.00 mg / L).

[0058] (2) Analysis of changes in water chemical parameters

[0059] Figure 2 This graph shows the variation of hydrochemical parameters in hot spring water under different initial pH conditions. Figure 2 In (a), as the concentration factor increases, the pH value of ZK3 varies from 4.28 to 4.88, the TDS value varies from 1632.00 to 9406.50 mg / L, the Eh value varies from 176.10 to 222.60, and the T value varies from 69.45 to 90.40℃; the pH value of JK7 varies from 4.21 to 4.58, the TDS value varies from 1394.00 to 8734.00 mg / L, the Eh value varies from 213.00 to 234.00, and the T value varies from 67.15 to 87.05℃.

[0060] exist Figure 2In (b), with the increase of the concentration multiple, the pH value of ZK3 ranged from 7.63 to 8.59, the TDS value ranged from 1402.00 to 8500.00 mg / L, the Eh value ranged from 161.50 to 209.00, and the T value ranged from 66.10 to 92.00℃; the pH value of JK7 ranged from 7.42 to 8.50, the TDS value ranged from 1449.50 to 9076.00 mg / L, the Eh value ranged from 182.00 to 204.50, and the T value ranged from 71.30 to 91.30℃.

[0061] In Figure 2 In (c), with the increase of the concentration multiple, the pH value of ZK3 ranged from 8.45 to 9.68, the TDS value ranged from 1224.00 to 8847.00 mg / L, the Eh value ranged from 160.90 to 218.70, and the T value ranged from 72.45 to 92.05℃; the pH value of JK7 ranged from 8.38 to 9.71, the TDS value ranged from 1336.00 to 8798.50 mg / L, the Eh value ranged from 129.50 to 157.00, and the T value ranged from 66.20 to 91.50℃.

[0062] In Figure 2 In (d), with the increase of the concentration multiple, the pH value of ZK3 ranged from 9.07 to 9.89, the TDS value ranged from 1248.50 to 8774.00 mg / L, the Eh value ranged from 153.90 to 206.40, and the T value ranged from 70.80 to 89.40℃; the pH value of JK7 ranged from 8.91 to 9.77, the TDS value ranged from 1147.00 to 8532.50 mg / L, the Eh value ranged from 128.00 to 143.50, and the T value ranged from 89.30 to 71.95℃.

[0063] From Figure 2 It can be seen that, during the whole water bath concentration experiment, the TDS value of the obtained concentrated sample showed an upward trend with the increase of the concentration multiple, and all met the physiotherapy hot spring water quality standard (TDS > 1000 mg / L). The pH value of the obtained concentrated sample also increased with the increase of the concentration multiple, which was presumably due to the increase of the concentration of inorganic salts, minerals and other substances dissolved in the water during the concentration process. Some acidic substances (such as sulfates and chlorides) may volatilize or decompose, thereby reducing the acidic components in the water and causing the pH value to rise. Under the condition that the initial pH value of the hot spring water was 4, the pH value of the obtained concentrated sample did not meet the physiotherapy hot spring water quality standard (5.8 < pH < 10.0), which belonged to acidic hot spring water source and could not be used as hot spring service water (seeFigure 2 (a)); the pH values of the concentrated samples obtained under the conditions of initial pH values of 5, 6, and 8 of the hot spring water all met the physiotherapy hot spring water source water quality standard (5.8 < pH < 10.0), and could be used as water for providing hot spring services (see Figure 2 (b), (c), and (d)).

[0064] The actual minimum temperature of the concentrated hot spring water sample obtained through evaporation concentration was 66.10°C (see Figure 2 (b)), and the actual maximum temperature was 92.05°C (see Figure 2 (c)), indicating that the T values of all the concentrated samples were lower than the T value (100°C) set in the concentration experiment condition, and it was speculated that the concentration quality was unstable in the water bath evaporation method, and the thermal sensitive components such as volatile substances and easily oxidized components were easily affected during the heating process. The Eh values of the concentrated samples obtained under the conditions of initial pH values of 4 and 6 of the Lushan ZK3 hot spring water showed a trend of first decreasing and then increasing with the increase of the concentration multiple (see Figure 2 (a) and (c)), the Eh values showed a trend of first increasing and then decreasing with the increase of the concentration multiple (see Figure 3 (b)) under the condition of initial pH value of 5 of the hot spring water, and the Eh values showed obvious fluctuation (see Figure 3 (d)) under the condition of initial pH value of 8 of the hot spring water, while the Eh values of the concentrated samples obtained from the Lushan JK7 hot spring water showed basically the same trend and were relatively stable, indicating that different hot spring water sources, initial pH values of the hot spring water, and concentration multiples not only affected the solute concentration, but also had a significant impact on the oxidation-reduction state and temperature distribution of the solution.

[0065] In summary, the bromine type physiotherapy water prepared by the water bath evaporation concentration method was best when the Lushan JK7 hot spring water was used as the water source, the initial pH value was 8, and the concentration multiple was 50 times, and the Br - concentration of the bromine type physiotherapy water was the highest (5.72 mg / L), reaching the medical value concentration standard (> 5.00 mg / L). At the same time, the bromine type physiotherapy water had good stability.

[0066] Test Example 2, Condition Screening for Preparing Bromine Type Physiotherapy Water by Hot Air Evaporation Concentration Method

[0067] Take 500 mL Lushan hot spring water (JK7 hot spring water or ZK3 hot spring water) in a beaker, and place the beaker in an electric heating constant temperature air drying oven with a temperature setting of 120±0.5℃; adjust the pH value of the hot spring water to 4±0.1, 5±0.1, 6±0.1, 8±0.1 with 0.1M HCl and 0.1M NaOH to explore the effect of initial pH value of the hot spring water on the physiotherapy components of the concentrated solution. When the Lushan hot spring water is evaporated by air drying to a specific concentration multiple (i.e. 2 times, 5 times, 10 times, 20 times, 50 times), immediately measure the water chemical parameters of T, pH, Eh, TDS, etc. of the hot spring water, and take 10 mL of the solution for detection of physiotherapy components and other anions and cations in the hot spring water.

[0068] (1) Physiotherapy component change rule analysis

[0069] Figure 3 In order to obtain the physiotherapy component fingerprint map of Lushan hot spring under different initial pH values of the hot spring water, the concentration of each physiotherapy component showed an upward trend during the entire hot air evaporation and concentration experiment, and the concentration effect of each physiotherapy component was affected to different degrees by the initial pH value of the hot spring water and the concentration multiple. Figure 3 (a), (b), (c) and (d) are Li + from 0.40 mg / L to a maximum of 3.07 mg / L (see Figure 3 (a)), Br - from 1.72 mg / L to a maximum of 5.14 mg / L (see Figure 3 (d)), Sr 2+ from 0.03 mg / L to a maximum of 0.58 mg / L (see Figure 3 (a)), H2SiO3 from 73.11 mg / L to a maximum of 1245.50 mg / L (see Figure 3 (d)), F - from 6.09 mg / L to a maximum of 228.37 mg / L (see Figure 3 (c)).

[0070] Figure 3 (e), (f), (g) and (h) are Li + from 0.16 mg / L to a maximum of 5.11 mg / L (see Figure 3 (g)), Br - from 1.97 mg / L to a maximum of 4.42 mg / L (see Figure 3 (h)), Sr 2+ from 0.01 mg / L to a maximum of 0.57 mg / L (see Figure 3 (g)), H2SiO3 from 73.32 mg / L to a maximum of 1217.40 mg / L (seeFigure 3 (e)) F - From 8.68 mg / L to 242.65 mg / L (see Figure 3 (f)). It can be seen that the physiotherapy component Br - obtained by concentrating the Lushan ZK3 hot spring as the water source has a higher maximum concentration. 2+ The physiotherapy component Li + obtained by concentrating the Lushan JK7 hot spring as the water source has a higher maximum concentration. - The physiotherapy component F - obtained by concentrating the Lushan ZK3 hot spring as the water source has a higher maximum concentration.

[0071] Under the conditions of an initial pH value of 5 or 6 and the Lushan ZK3 hot spring as the water source (see Figure 3 (b) and (c)), the H2SiO3 concentration in the solution obtained after the water body is concentrated by 10 times, 20 times, or 50 times is similar, indicating that further increasing the concentration multiple cannot enrich H2SiO3; under the conditions of an initial pH value of 4 and the Lushan JK7 hot spring as the water source (see Figure 4 (e)), the F - concentration in the solution obtained after the water body is concentrated by 20 times or 50 times is similar, being 122.49 mg / L and 135.50 mg / L, respectively, and it is speculated that further increasing the concentration multiple cannot increase the F - concentration, while the H2SiO3, F - concentrations under the remaining concentration conditions show a stable upward trend with the increase of the concentration multiple.

[0072] The Li + concentration shows a stable increase with the increase of the concentration multiple (see Figure 4 ), while the Br - concentration does not all show a stable increase with the increase of the concentration multiple, such as under the conditions of an initial pH value of 5 and the Lushan ZK3 hot spring as the water source (see Figure 4 (b)), the Br - concentration in the solution obtained after the water body is concentrated by 20 times is 3.67 mg / L, which is the maximum value under this condition, indicating that the Br - concentration under this condition shows fluctuation. Overall, the hot air evaporation method can achieve the concentration effect of Li + , Br - , H2SiO3, F - , but still cannot achieve the concentration of Sr 2+ , even if the water body is concentrated by 50 times, the Sr 2+ concentration is still lower than 1.00 mg / L, and it is speculated that in the process of hot air evaporation concentration, Sr 2+Also easy to react with SO4 2- , CO3 2- , etc. anions in water body.

[0073] Br - concentration reached the maximum value when the water source was ZK3 hot spring water, the initial pH value was 8, and the concentration multiple was 50 (see Figure 4 (d)), at which time the Br - concentration was 5.14 mg / L, reaching the medical value concentration standard (> 5.00 mg / L). This condition was similar to the water bath evaporation method condition, but the difference was the use of different water sources, and the result was poorer than that of the water bath evaporation method.

[0074] In addition, the H2SiO3, F - in the concentrated sample obtained by the hot air evaporation method reached the maximum concentrations of 1245.50 mg / L and 242.65 mg / L, respectively, which were less than the maximum concentrations of H2SiO3, F - in the concentrated sample obtained by the water bath evaporation method (i.e., 1673.71 mg / L and 295.75 mg / L), so the hot air evaporation method had a poorer concentration effect on H2SiO3, F - than the water bath evaporation method.

[0075] (2) Analysis of changes in water chemical parameters

[0076] Figure 4 are the changes in water chemical parameters under different initial pH values of hot spring water. In Figure 4 (a), with the increase of the concentration multiple, the pH value of ZK3 changed in the range of 4.02-4.42, the TDS value changed in the range of 767.00-8562.00 mg / L, the Eh value changed in the range of 215.00-265.00, and the T value changed in the range of 51.00-58.00℃; the pH value of JK7 changed in the range of 4.09-4.24, the TDS value changed in the range of 572.00-9589.00 mg / L, the Eh value changed in the range of 256.00-307.00, and the T value changed in the range of 57.00-63.00℃.

[0077] In Figure 4In (b), with the increase of the concentration multiple, the pH value of ZK3 changed in the range of 7.69-8.13, the TDS value changed in the range of 660.00-9650.00 mg / L, the Eh value changed in the range of 121.00-192.00, and the T value changed in the range of 51.00-63.00℃; the pH value of JK7 changed in the range of 7.58-8.06, the TDS value changed in the range of 651.00-8628.00 mg / L, the Eh value changed in the range of 118.00-167.00, and the T value changed in the range of 49.00-62.00℃.

[0078] In Figure 4 In (c), with the increase of the concentration multiple, the pH value of ZK3 changed in the range of 8.45-9.68, the TDS value changed in the range of 1224.00-8847.00 mg / L, the Eh value changed in the range of 160.90-218.70, and the T value changed in the range of 52.45-72.05℃; the pH value of JK7 changed in the range of 8.70-9.18, the TDS value changed in the range of 567.00-9624.00 mg / L, the Eh value changed in the range of 96.00-115.00, and the T value changed in the range of 53.00-61.00℃.

[0079] In Figure 4 In (d), with the increase of the concentration multiple, the pH value of ZK3 changed in the range of 9.13-9.58, the TDS value changed in the range of 513.00-6409.00 mg / L, the Eh value changed in the range of 91.00-114.00, and the T value changed in the range of 54.00-64.00℃; the pH value of JK7 changed in the range of 9.16-9.68, the TDS value changed in the range of 513.00-6637.00 mg / L, the Eh value changed in the range of 97.00-112.00, and the T value changed in the range of 47.00-62.00℃.

[0080] From Figure 4It can be seen that during the whole hot air concentration experiment, the TDS value of the obtained concentrated sample showed an upward trend with the increase of the concentration multiple, and when the concentration multiple was 2 times or more, it met the physiotherapy hot spring water quality standard (TDS > 1000 mg / L). The pH value of the obtained concentrated sample also showed an upward trend with the increase of the concentration multiple, and was lower than that of the concentrated sample obtained by water bath evaporation under the same initial pH value and water source conditions. It was speculated that the heating temperature of the hot air evaporation method was higher, which might accelerate the evaporation or degradation of acidic components, resulting in a lower pH value than that of the sample obtained by water bath evaporation. When the initial pH value of the hot spring water was 4, the pH value of the obtained concentrated sample did not meet the physiotherapy hot spring water quality standard (5.8 < pH < 10.0), belonging to acidic hot spring water source, and could not be used as hot spring service water (see Figure 4 (a)); when the initial pH value of the hot spring water was 5, 6 and 8, the pH value of the obtained concentrated sample met the physiotherapy hot spring water quality standard (5.8 < pH < 10.0), and could be used as hot spring service water (see Figure 4 (b), (c) and (d)).

[0081] The actual minimum temperature of the concentrated hot spring water sample obtained by hot air evaporation concentration was 47.00℃ (see Figure 2 (d)), and the actual maximum temperature was 72.05℃ (see ​ (c)), indicating that the T value of all concentrated samples was lower than the T value set in the concentration experiment (120℃), which was speculated to be due to the fact that hot air evaporation method mainly relied on air flow to remove water, and problems such as low hot air flow speed, insufficient heat transfer efficiency, or inaccurate temperature control might occur during heating. When the initial pH value of the hot spring water was 5 and 8, the Eh value of the obtained concentrated sample changed little and was in a stable state (see ​ (b) and (d)), indicating that the oxidation-reduction reaction during the concentration process was relatively slow, and the concentration and reaction rate of the oxidation-reduction substances in the water were low. In addition, from the comparison results of ​ and ​ , it can be seen that during the hot air evaporation concentration process, the Eh change was more stable than that of the water bath evaporation method, which was speculated to be due to the fact that the hot spring water did not experience rapid thermal shock during the concentration process, and the oxidation-reduction reaction was relatively stable.

[0082] In summary, when preparing bromine type physiotherapy water by hot air evaporation concentration method, the bromine type physiotherapy water prepared with Lushan ZK3 hot spring water as water source, initial pH value of 8 and concentration multiple of 50 times was the best, and the Br - concentration of the bromine type physiotherapy water was the highest (5.14 mg / L), reaching the medical value concentration standard (> 5.00 mg / L). However, the Br -The concentration of bromine type physiotherapy water prepared by the water bath evaporation concentration method (using Lushan JK7 hot spring water as the water source, the initial pH is 8, and the concentration multiple is 50) is lower than that of the bromine type physiotherapy water prepared by the water bath evaporation concentration method. The bromine type physiotherapy water prepared by the water bath evaporation method in example 1 is used for subsequent research.

[0083] Test example 3, characteristic research of bromine type physiotherapy water

[0084] According to the results of test example 1 and test example 2, it can be known that the Br - concentration can reach the maximum value (5.72 mg / L), and meets the medical value concentration standard, and the sample obtained under the concentration condition can be used as bromine type physiotherapy water. The bromine type physiotherapy water prepared under the concentration condition is analyzed as follows.

[0085] 1, component characteristics of bromine type physiotherapy water

[0086] According to the evaporation concentration experiment results, and referring to the national standards “Hot spring service hot spring water quality requirements” (GB / T 41837-2022) and “Geothermal resources geological exploration specification” (GB / T 11615-2010), it can be preliminarily obtained that the concentration condition, physiotherapy component content, beneficial component content and water quality evaluation of the bromine type physiotherapy water are shown in table 1. According to table 1, the bromine type physiotherapy water is high mineral geothermal brine, the physiotherapy component content and beneficial component content are relatively high, and meets the hot spring water source water quality standard, which shows that it has great potential in physiotherapy effect, and also has good guarantee in safety and compliance. Therefore, it can be preliminarily speculated that the bromine type physiotherapy water can be applied in hot spring physiotherapy, and is expected to provide efficient health benefits for users.

[0087] Table 1. Component characteristics of bromine type physiotherapy water of the application

[0088]

[0089] 2, heavy metal concentration change characteristics

[0090] The heavy metal change analysis as an important link of physiotherapy water quality control has an indispensable role. Through comprehensive analysis of the heavy metal concentration and its change trend, the water quality safety can be effectively guaranteed, the adverse health reactions can be avoided, and a solid scientific basis can be provided for the research, standard formulation and wide application of new physiotherapy water.

[0091] Through detection, it is known that the main heavy metals in the bromine type physiotherapy water are As, Cd, Cr, Cu, Mn, Ni, Pb, Se and Zn, wherein the concentrations of As, Cd, Cr, Cu, Mn, Ni, Pb, Se and Zn are 0.02 mg / L, 0.04 mg / L, 0.07 mg / L, 0.43 mg / L, 0.31 mg / L, 0.04 mg / L, 0.02 mg / L, 0.01 mg / L and 0.07 mg / L respectively, indicating that the concentrations of Cr, Cu, Mn and Zn in the bromine type physiotherapy water are relatively high, and the concentrations of other heavy metals are relatively low, but the concentrations of the heavy metals in the bromine type physiotherapy water all meet the quality standard IV of underground water, so the bromine type physiotherapy water prepared by the present application meets the standard of physiotherapy hot mineral water and can be used for bathing.

[0092] In addition, through solid EDS energy spectrum, it is known that the main elements of the precipitated solid of the bromine type physiotherapy water are O (50.85%), Na (35.36%) and Si (9.88%).

[0093] In conclusion, the present application provides a bromine type physiotherapy water prepared by using hot spring as raw material, the bromine type physiotherapy water prepared by using the specific preparation method meets the standard of physiotherapy hot mineral water, the physiotherapy water has relatively high physiotherapy components and beneficial components, has great potential in physiotherapy effect, meets the quality standard IV of underground water and has good safety as bathing water, the present application provides basic scientific theory support for using hot spring concentrated liquid as a substitute product of bath therapy agent, provides innovative ideas for solving the problems of single development and utilization form of hot spring, unreasonable structure of hot spring industry, serious resource waste and other problems and promotes the development of hot spring industry to high value and high quality.

[0094] The above disclosure is only specific embodiments of the present application, but the present application is not limited thereto, and any changes that can be thought of by those skilled in the art should fall within the protection scope of the present application.

Claims

1. A method of preparing bromine type physiotherapy water, characterized by: It comprises the following steps: (1) taking bromine-containing hot spring water, adjusting pH to 6-8; (2) evaporating and concentrating the hot spring water after pH adjustment in step (1) to 20-50 times of concentration, to obtain bromine-type physiotherapy water.

2. The method of claim 1, wherein: In step (1), the pH is adjusted to 8; And / or, in step (2), the method of evaporating and concentrating is water bath evaporation and concentration or hot air evaporation and concentration.

3. The method of claim 2, wherein: The pH adjustment uses HCl and NaOH.

4. The method of claim 2, wherein: The temperature of the water bath evaporation and concentration is 90-100℃; the stirring speed is kept at 100-300 r / min during water bath evaporation and concentration; The temperature of the hot air evaporation and concentration is 100-120℃.

5. The method of claim 4, wherein: The temperature of the water bath evaporation and concentration is 100℃; the stirring speed is kept at 200 r / min during water bath evaporation and concentration; The temperature of the hot air evaporation and concentration is 120℃.

6. The method of claim 1, wherein: In step (2), the concentration is to 50 times of concentration.

7. The method according to any one of claims 1 to 6, characterized in that: The bromine-containing hot spring water is Lushan hot spring water.

8. The method of claim 7, wherein: The Lushan hot spring water is hot spring water mined from No. 3 well or No. 7 well of Jiangxi Lushan Xingzi Lushan Hot Spring Water Co., Ltd.; the drilling depth of No. 3 well is 206 m, and the drilling depth of No. 7 well is 524 m.

9. A bromine type physiotherapy water, characterized by: It is prepared by the method of any one of claims 1-8.

10. Use of the bromine-type physiotherapy water of claim 9 in the preparation of bath water.

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