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Adsorbent for removing heavy metal from water and preparation method of adsorbent

An adsorbent and heavy metal technology, applied in chemical instruments and methods, adsorption water/sewage treatment, other chemical processes, etc., can solve problems such as difficult to use, and achieve the effect of simple operation, low production cost, and simple preparation method

Inactive Publication Date: 2011-11-09
BEIJING FORESTRY UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although metal oxides have the advantages of large adsorption capacity and fast adsorption speed for heavy metals, they are not easy to use because they generally exist in powder form.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] 1. Prepare raw materials according to the following weight ratio

[0031] 7g polymer material, 0.5g pore forming agent, 10g metal oxide

[0032] Wherein, the polymer material is cellulose acetate; the pore-forming agent is magnesium perchlorate; the metal oxide is iron oxyhydroxide;

[0033] 2. Add cellulose acetate to 30g of acetone, and stir evenly with a magnetic stirrer at room temperature to make a polymer solution;

[0034] 3. Add magnesium perchlorate to 5 g of deionized water, and stir evenly with a magnetic stirrer at room temperature to make a pore-forming agent solution;

[0035] 4. Add the pore-forming agent solution into the polymer solution, and stir evenly with a magnetic stirrer at room temperature to make a mixed solution A;

[0036] 5. Add ferric oxyhydroxide to mixed solution A, and stir evenly with a magnetic stirrer at room temperature to make a metal oxide suspension;

[0037] 6. Drop the metal oxide suspension into 500ml of liquid paraffin. Due...

Embodiment 2

[0040] 1. Prepare raw materials according to the following weight ratio

[0041] 10g polymer material, 1.5g pore forming agent, 15g metal oxide

[0042] Wherein, the polymer material is polyvinyl alcohol; the pore-forming agent is magnesium perchlorate; the metal oxide is iron oxyhydroxide and cerium dioxide, wherein the weight of iron oxyhydroxide and cerium dioxide The ratio is 7:8;

[0043] 2. Add polyvinyl alcohol to 40g of acetone, and stir evenly with a magnetic stirrer at room temperature to make a polymer solution;

[0044] 3. Add magnesium perchlorate to 10 g of deionized water, and stir evenly with a magnetic stirrer at room temperature to make a pore-forming agent solution;

[0045] 4. Add the pore-forming agent solution into the polymer solution, and stir evenly with a magnetic stirrer at room temperature to make a mixed solution A;

[0046] 5. After mixing iron oxyhydroxide and cerium dioxide evenly, add them to the mixed solution A, and stir evenly with a magn...

Embodiment 3

[0050] 1. Prepare raw materials according to the following weight ratio

[0051] 8g polymer material, 1.0g pore forming agent, 5g metal oxide

[0052] Wherein, the polymer material is polyvinyl fluoride; the pore forming agent is magnesium sulfate; the metal oxide is iron oxyhydroxide, manganese oxyhydroxide, hydrated alumina, hydrated zirconia, cerium oxide, 1g each of iron oxyhydroxide, manganese oxyhydroxide, hydrated alumina, hydrated zirconia, and ceria;

[0053] 2. Add polyvinyl fluoride to 33g of acetone, and stir evenly with a magnetic stirrer at room temperature to make a polymer solution;

[0054] 3. Add magnesium sulfate to 10 g of deionized water, and stir evenly with a magnetic stirrer at room temperature to make a pore-forming agent solution;

[0055] 4. Add the pore-forming agent solution into the polymer solution, and stir evenly with a magnetic stirrer at room temperature to make a mixed solution A;

[0056] 5. After mixing ferric oxyhydroxide, manganese ox...

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Abstract

The invention discloses an adsorbent for removing heavy metal from water and a preparation method of the adsorbent, and belongs to the fields of water treatment technologies and application. The adsorbent for removing the heavy metal from the water comprises the following raw materials of a high polymer material, a metal oxide and a pore-forming agent. The prepared adsorbent has high heavy metal adsorption capacity and high adsorption speed and thoroughly removes the heavy metal from the water at high removal efficiency of over 95 percent.

Description

field of invention [0001] The invention relates to an adsorbent for removing heavy metals in water, in particular to a polymer material immobilized metal oxide granular adsorption material and a preparation process thereof, belonging to the field of water treatment technology and application. Background of the invention [0002] The rapid development of industry in the world today has produced a large amount of wastewater containing heavy metal ions. Because heavy metal ions are highly toxic to organisms and will cause serious damage to receiving water bodies, heavy metal pollution has become the most serious environmental problem in the world today. one. Heavy metals in water mainly include As, Cu, Cr, Zn, Cd, Pb, and Hg, etc., which generally enter the water environment through mining, metal smelting, electroplating, chemical wastewater, and domestic sewage. In my country, the problem of heavy metal pollution in the water environment is very common. The survey of heavy m...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J20/26B01J20/30C02F1/28C02F1/62
Inventor 王洪杰孙德智王毅力豆小敏曲丹封莉
Owner BEIJING FORESTRY UNIVERSITY
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