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Drinking water mineralizer, and preparation method and use method thereof

A mineralizer, drinking water technology, applied in chemical instruments and methods, water/sewage treatment, water/sludge/sewage treatment, etc. Avoid excessive dissolution of strontium and solve the effect of low pH

Active Publication Date: 2021-06-15
YANGZHOU POLYTECHNIC INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the reverse osmosis membrane for CO 2 No removal ability, resulting in acidic effluent, long-term drinking will affect human health
[0004] Most of the existing mineralizers for drinking water use natural minerals. However, natural minerals have complex components, and they often dissolve heavy metals and radioactive substances while leaching beneficial elements.
In addition, with the increase of soaking time, the dissolution concentration will be too high and the pH of drinking water will be too high. Long-term drinking will affect human health.
There are also studies using artificially compounded mineralizers to supplement beneficial elements in drinking water, but they often cannot solve the problem that the concentration of elements in drinking water exceeds the drinking water standard after long-term soaking

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Place 500mL weakly acidic cation exchange resin in a glass fixed bed with a diameter of 2cm, and pass 0.5mol / L hydrochloric acid from top to bottom at a flow rate of 200mL / min. After 10 minutes, deionized water was introduced at a flow rate of 10 mL / min, and the deionized water rinse was completed after 30 minutes. At this time, the pH of the effluent was 6.7. Then, a strontium chloride solution with a concentration of 1 mol / L was introduced at a flow rate of 150 mL / min. After 10 minutes of passing through, the concentration of strontium chloride in the effluent solution reached 0.97 mol / L, and the process was ended. Water was passed into the resin after passing through the strontium solution at a flow rate of 200 mL / min until the concentration of strontium in the effluent of the resin was 0.09 mol / L.

[0026] Put 500mL of strontium-type resin in a PP filter bottle with an inner diameter of 4cm, pass through reverse osmosis pure water with a pH of 4.8 at a flow rate of ...

Embodiment 2

[0028] Place 500mL weakly acidic cation exchange resin in a glass fixed bed with a diameter of 2cm, and pass 0.5mol / L hydrochloric acid from top to bottom at a flow rate of 200mL / min. After 10 minutes, deionized water was introduced at a flow rate of 10 mL / min, and the deionized water rinse was completed after 30 minutes. At this time, the pH of the effluent was 6.7. Then, a strontium chloride solution with a concentration of 1.0 mol / L was introduced at a flow rate of 100 mL / min. After 25 minutes, the concentration of strontium chloride in the effluent solution reached 0.9 mol / L, and the process was ended. Water was passed into the resin after passing through the strontium solution at a flow rate of 250 mL / min until the concentration of strontium in the effluent of the resin was 0.06 mol / L.

[0029] Put 250mL of strontium-type resin in a PP filter bottle with an inner diameter of 4cm, and pass through reverse osmosis pure water with a pH of 4.46 at a flow rate of 20 times the ...

Embodiment 3

[0031] Place 500 mL of strongly acidic cation exchange resin in a glass fixed bed with a diameter of 2 cm, and pass 0.5 mol / L hydrochloric acid from top to bottom at a flow rate of 200 mL / min. After 10 minutes, deionized water was introduced at a flow rate of 10 mL / min, and the deionized water rinse was completed after 30 minutes. At this time, the pH of the effluent was 6.7. Then, a strontium chloride solution with a concentration of 1.5 mol / L was introduced at a flow rate of 300 mL / min. After 40 minutes, the concentration of strontium chloride in the effluent solution reached 0.85 mol / L, and the process was ended. Water was passed into the resin after passing through the strontium solution at a flow rate of 500 mL / min until the concentration of strontium in the effluent of the resin was 0.05 mol / L.

[0032] Put 250mL of strontium-type resin in a PP filter bottle with an inner diameter of 4cm, pass through reverse osmosis pure water with a pH of 5.02 at a flow rate of 5 times...

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Abstract

The invention discloses a drinking water mineralizer, and a preparation method and a use method thereof. The drinking water mineralizer comprises resin and strontium ions loaded on the resin. The preparation method comprises the following steps: (A1) introducing a strontium solution into the resin; and (A2) introducing water into the resin into which the strontium solution is introduced to prepare the drinking water mineralizer. The use method of the drinking water mineralizer comprises the following steps: (B1) placing the drinking water mineralizer in a container with an upper opening and a lower opening, and placing shielding objects at the opening ends; and (B2) placing the container filled with the drinking water mineralizer at the near-water end of a reverse osmosis membrane, and adjusting the flow of water entering the container to obtain strontium-enriched mineralized water. According to the drinking water mineralizer, stable dissolution of strontium can be guaranteed, the situation that the dissolution amount of strontium exceeds the standard due to long-term soaking can be avoided, and in addition, the problem that the pH value of pure water prepared through reverse osmosis is low can be solved.

Description

technical field [0001] The invention relates to a mineralizer, its preparation method and use method, in particular to a drinking water mineralizer, its preparation method and its use method. Background technique [0002] Strontium is a trace element needed by the human body. It can regulate the structure of bone tissue, improve the strength of bone, and promote the physiological activity of bone cells. In addition, strontium can prevent cardiovascular diseases, prevent caries, resist oxidation, prevent aging, and beautify the skin. Trace elements can be supplemented through food health care and pharmaceuticals. However, this approach often has a hysteresis, and it is difficult to prevent it. In addition, related preparations are usually more expensive. [0003] Water is an essential nutrient and a carrier of other nutrients, especially trace minerals. With the improvement of national living standards, consumers' demand for drinking water is gradually changing from clean...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F1/68C02F1/42
CPCC02F1/68C02F1/42C02F2001/425
Inventor 肖伽励周龙生王升文金党琴王道亮黄佳庆
Owner YANGZHOU POLYTECHNIC INST
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