Composite adsorption material for removing magnesium ions from natural water and preparation method for adsorption material

A composite adsorption material and adsorption material technology, applied in the field of wastewater treatment in environmental protection, can solve the problem of high cost of removing materials, and achieve the effects of low cost, increased adsorption efficiency, and large adsorption capacity

Inactive Publication Date: 2013-01-16
CHANGZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] Another object of the present invention is to solve the problem o

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Boil the animal bones in water repeatedly, crush them, boil the prepared bone powder with NaOH with a mass fraction of 20%, wash the lye on the surface of the bone powder with a large amount of water; dry the bone powder, and use a mesh sieve to obtain bone powder with different particle sizes , take the bone powder with a particle size of 18 mesh, put it in an oven and dry it at 105°C for 2 hours; put the sawdust in an oven and dry it at 105°C for 1 hour, then use a small pulverizer to grind it, and sieve it with a 40 mesh; take the treated sawdust, Bone powder and water are mixed according to the mass ratio of 3:2:2, and then mixed evenly in a molding extruder, and extruded to shape, and then granulated into round granules in a granulator, dried in the shade for 20 hours, and placed in an oven at Dry at 105°C for 1 hour, then activate and sinter the dried sample at an activation temperature of 500°C at a heating rate of 5°C / min, after reaching the highest activation te...

Embodiment 2

[0031] The animal bones are repeatedly boiled in water and crushed, and the prepared bone powder is boiled with 22% NaOH by mass fraction, and the lye on the surface of the bone powder is washed with a large amount of water; the bone powder is dried, and bone powder with different particle sizes is obtained by a mesh sieve. Take the bone meal with a particle size of 30 mesh, put it in an oven and dry it at 105°C for 3 hours; put the sawdust in an oven and dry it at 105°C for 2 hours, then use a small pulverizer to grind it, and sieve it with a 50 mesh; take the treated wood chips and bone meal , water is mixed according to the mass ratio of 3:2:2, then mixed evenly in the forming extruder, and extruded to shape, then granulated into round granules in the granulator, dried in the shade for 22 hours, and placed in an oven at 105 ℃ drying for 1.5h, and then the dried sample was activated and sintered at an activation temperature of 600°C at a heating rate of 10°C / min. After reachi...

Embodiment 3

[0034] Boil the animal bones in water repeatedly, crush them, boil the prepared bone powder with NaOH with a mass fraction of 25%, wash the lye on the surface of the bone powder with maximum water; dry the bone powder, and use a mesh sieve to obtain bone powder with different particle sizes , take the bone powder with a particle size of 40 mesh, put it in an oven and dry it at 105°C for 4 hours; put the sawdust in an oven and dry it at 105°C for 3 hours, then use a small pulverizer to grind it, and sieve it with a 60 mesh; take the treated wood chips, Bone powder and water are mixed according to the mass ratio of 3:2:2, and then mixed evenly in a molding extruder, and extruded to shape, and then granulated into round granules in a granulator, dried in the shade for 24 hours, and placed in an oven at Dry at 105°C for 2h. Then, the dried sample was activated and sintered at an activation temperature of 700°C at a heating rate of 15°C / min. After reaching the highest activation te...

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PUM

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Abstract

The invention discloses a composite adsorption material for removing magnesium ions from natural water and a preparation method for the adsorption material. A bone and sawdust are used as raw materials. The method comprises the following steps of: cooking and grinding the animal bone, boiling by using NaOH, flushing, drying, sieving, and drying; uniformly mixing the dried, ground and sieved sawdust, bone black and water, forming in a banded extruder, pelletizing in a pelletizer, drying in the shade, and drying; and heating and activating the dried material, naturally cooling, flushing, and drying to obtain the adsorption material. The preparation method is novel and unique, and the prepared material has a good adsorption effect on the magnesium ions in the water.

Description

technical field [0001] The invention relates to a composite adsorption material for removing magnesium ions in natural water bodies and a preparation method thereof, in particular to advanced treatment of water bodies containing magnesium ions, and belongs to the field of waste water treatment in environmental protection. Background technique [0002] Some water contains magnesium ions and bicarbonate ions, etc. Magnesium ions combine with bicarbonate ions to form magnesium bicarbonate. Magnesium bicarbonate is unstable and finally converted into magnesium hydroxide, which is extremely stable and insoluble in water. It is a white precipitate. We call this water hard water. Drinking hard water will have a certain impact on human health and daily life. Cooking fish and vegetables with hard water will destroy or reduce the nutritional value of the food because it is not easy to cook; making tea with hard water will change the color and aroma of tea and reduce its drinkability. ...

Claims

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Application Information

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IPC IPC(8): B01J20/20B01J20/30C02F1/28C02F1/42C02F1/62
Inventor 涂保华雷春生梅宇韬
Owner CHANGZHOU UNIV
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