Nanometer medicament for simultaneously removing arsenic, phosphorus and fluorine in water and preparation method of nanometer medicament

A technology for removing water and nanometers, applied in chemical instruments and methods, water pollutants, water/sewage treatment, etc., to achieve the effect of reducing overall cost and high proportion

Active Publication Date: 2017-11-03
GUIZHOU MEIRUITE ENVIRONMENTAL PROTECTION TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the effect of chemical phosphorus removal is stable

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] The preparation method of the present embodiment comprises the following steps:

[0024] Step 1: the conventional metal salt mixed solid that accounts for 40% of the total mass of the medicament is dissolved in water, wherein the conventional metal salt mixed solid contains calcium chloride, polyaluminum chloride, ferrous sulfate, and magnesium chloride four components, and the mass proportion is 1:1:1:1, stirring for 60 minutes, the stirring temperature is 25°C, the stirring speed is 60r / min, and the aqueous solution with a mass fraction of 20% is prepared;

[0025] Step 2: dissolving titanium tetrachloride solids accounting for 20% of the total mass of the medicament in water, stirring for 60 minutes, stirring at a temperature of 25° C., and a stirring speed of 60 r / min, and preparing an aqueous solution with a mass fraction of 20%;

[0026] Step 3: Dissolving the rare earth salt mixed solid accounting for 10% of the total mass of the medicament in water, wherein the ...

Embodiment 2

[0030] The preparation method of the present embodiment comprises the following steps:

[0031] Step 1: the calcium nitrate solid that accounts for 30% of the total mass of the medicament is dissolved in water, stirred for 120 minutes, the stirring temperature is 30° C., the stirring speed is 100 r / min, and the mass fraction is mixed with a 30% aqueous solution;

[0032] Step 2: dissolve the titanium trichloride solid accounting for 10% of the total mass of the medicament in water, stir for 120 minutes, the stirring temperature is 30° C., the stirring speed is 100 r / min, and the mass fraction is 30% aqueous solution;

[0033] Step 3: the cerium nitrate solid that accounts for 20% of the total mass of the medicament is dissolved in water, stirred for 120 minutes, the stirring temperature is 30° C., the stirring speed is 100 r / min, and the mass fraction is 10% aqueous solution;

[0034] Step 4: the carboxymethyl chitosan solid that accounts for 40% of the total mass of the medic...

Embodiment 3

[0037] The preparation method of the present embodiment comprises the following steps:

[0038] Step 1: the magnesium sulfate solid that accounts for 20% of the total mass of the medicament is dissolved in water, stirred for 30 minutes, the stirring temperature is 20° C., and the stirring speed is 300 r / min, and the mass fraction is 15% aqueous solution;

[0039] Step 2: Dissolving the titanium salt mixed solid accounting for 40% of the total mass of the medicament in water, wherein the titanium salt mixed solid contains two components, titanium tetrachloride and titanium trichloride, with a mass ratio of 1:1, stirring for 30 minutes, The stirring temperature is 20°C, the stirring speed is 300r / min, and an aqueous solution with a mass fraction of 15% is prepared;

[0040] Step 3: the samarium sulfate solid that accounts for 15% of the total mass of the medicament is dissolved in water, stirred for 30 minutes, the stirring temperature is 20° C., the stirring speed is 300 r / min,...

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PUM

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Abstract

The invention discloses a nanometer medicament for simultaneously removing arsenic, phosphorus and fluorine in water. The nanometer medicament is prepared from the following components in percentage by weight: 0.1 to 99.7 percent of conventional metal salt, 0.1 to 99.7 percent of titanium salt, 0.1 to 99.7 percent of rare-earth salt and 0.1 to 99.7 percent of chitosan derivative. The solubility product of an insoluble compound which is formed by reacting the medicament with soluble arsenic, phosphorus and fluorine in the water is extremely low, and thereby the insolubility of the arsenic, the phosphorus and the fluorine in the water can be effectively improved; particles and specific gravity of the formed insoluble compound are large, and pollutants such as the arsenic, the phosphorus and the fluorine in the water can be removed simultaneously. The invention also provides a preparation method of the nanometer medicament. In the technology, the conventional metal salt, titanium salt, rare earth salt and chitosan salt crystal are respectively prepared into solutions; the solutions are uniformly mixed, and then are subjected to simple operation process steps such as drying crystallization and nano-grinding, so the nanometer medicament for simultaneously removing the arsenic, the phosphorus and the fluorine in the water can be successfully prepared; in addition, the preparation method has the advantages of high synthetic yield, easiness in process operation and method promotion, low production cost, low pharmaceutical dosage and low amount of formed sludge.

Description

technical field [0001] The invention belongs to the technical field of new nanometer materials and environmental protection treatment, and in particular relates to a nanomedicine for simultaneously removing arsenic, phosphorus and fluorine in water, and also relates to a preparation method thereof. Background technique [0002] Arsenic is a substance that is toxic to the human body and other organisms. Trivalent arsenic is more toxic than pentavalent arsenic, and organic arsenic compounds are more toxic than inorganic arsenic compounds. They can accumulate in the human body and are carcinogenic and teratogenic substances. Due to human activities such as water intake for irrigation, mining, especially digging wells for drinking water, as well as the influence of the ecological environment and climate in various regions, arsenic compounds in the earth's surface are dissolved into surface water in the form of arsenate and arsenite in large quantities. There is a serious proble...

Claims

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Application Information

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IPC IPC(8): C02F1/52C02F1/56C02F101/10C02F101/14
CPCC02F1/5236C02F1/56C02F2101/103C02F2101/105C02F2101/14
Inventor 李森李璐
Owner GUIZHOU MEIRUITE ENVIRONMENTAL PROTECTION TECH
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