Preparation method of high metasilicic acid mineral water and purified water
A technology of mineral water and metasilicic acid, which is applied in water/sewage treatment, water treatment parameter control, chemical instruments and methods, etc., can solve the problems of lack of silicon element in the human body, direct access to drinking water, and impact on human health, etc., to achieve The effect of reducing preparation time, reducing hardness and reducing production cost
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[0020] A preparation method of high metasilicate mineral water and pure water, comprising the following steps:
[0021] (1) Collect raw water with low metasilicate minerals; (2) Pass the raw water through a sand filter with a sand filter layer height of 800-1200mm at a filtration speed of 7-9m / h, and then pass through a carbon filter layer with a height of 1800-2200mm Activated carbon filter, then pass through the ultrafiltration membrane with a pore size of 0.05-0.1um under the operating pressure of 0.1-0.5Mpa, and then pass through the nanofiltration membrane with a pore size of 1-2nm under the operating pressure of 0.5-0.8Mpa, and finally in Under the operating pressure of 0.6-1.5Mpa, pass through a reverse osmosis membrane with a pore size of 0.5-1nm and a recovery rate of 20-90% to obtain high-metasilicate mineral water and pure water; (3) make high-metasilicate mineral water and pure water are placed under the condition of relative humidity of 60% and temperature of 20°C...
Embodiment 1
[0023] The preparation method of high metasilicate mineral water and pure water in the present embodiment comprises the following steps:
[0024] Take raw water with metasilicate content of 11.2mg / L, total dissolved solids of 180mg / L, and hardness of 105mg / L, pass the raw water through a sand filter with a sand filter layer height of 800mm at a filtration speed of 7m / h, Then pass through an activated carbon filter with a carbon filter layer height of 1800mm, then pass through an ultrafiltration membrane with a pore size of 0.05um under an operating pressure of 0.1Mpa, and then pass through a nanofiltration membrane with a pore size of 1nm under an operating pressure of 0.5Mpa, and finally Under the operating pressure of 0.6Mpa, pass through the reverse osmosis membrane with a pore size of 0.5nm and a recovery rate of 30% to obtain high metasilicate mineral water and pure water; place the high metasilicate mineral water and pure water at a relative humidity of 60 %, the tempera...
Embodiment 2
[0026] The preparation method of high metasilicate mineral water and pure water in the present embodiment comprises the following steps:
[0027] Take raw water with metasilicic acid content of 11.2mg / l, total dissolved solids of 180mg / l, and hardness of 105mg / l, and pass the raw water through a sand filter with a sand filter layer height of 900mm at a filtration speed of 7.5m / h , then pass through an activated carbon filter with a carbon filter layer height of 1900mm, then pass through an ultrafiltration membrane with a pore size of 0.06um at an operating pressure of 0.2Mpa, and then pass through a nanofiltration membrane with a pore size of 1.2nm at an operating pressure of 0.6Mpa, Finally, under the operating pressure of 0.7Mpa, high metasilicate mineral water and pure water are obtained by passing through a reverse osmosis membrane with a pore size of 0.6nm and a recovery rate of 40%; Under the conditions of humidity 60% and temperature 20 DEG C, the ultraviolet ray is ste...
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