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Preparation method of active carbon fiber phosphorous removal agent loaded with ferric oxide hydrate

An activated carbon fiber, hydrated iron oxide technology, applied in chemical instruments and methods, other chemical processes, etc., can solve the problems of low phosphorus affinity, few adsorption sites, low removal rate, etc., and achieve low-cost adsorption performance, The effect of high adsorption performance and simple operation method

Inactive Publication Date: 2012-07-25
SHANGHAI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, activated carbon fiber has low affinity for phosphorus in environmental wastewater, few adsorption sites, and low removal rate. It is difficult to meet the standard for wastewater treatment only with activated carbon fiber.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] The concrete steps of this embodiment are:

[0022] 1. Prepare 10mL of 0.125mol / L ferric nitrate solution;

[0023] 2. Heat 40mL of deionized water to 100°C, gradually drop the ferric nitrate solution in a until the solution turns brown. Remove the beaker, stop heating, and obtain 0.025mol / L ferric hydroxide colloidal solution after cooling.

[0024] Reaction equation: Fe(NO 3 ) 3 +3H 2 O → Fe(OH) 3 (colloid)+3HNO 3 ;

[0025] 3. Cut the activated carbon fibers into 0.4-0.6cm cubes, wash with water for several times, soak in deionized water, filter and dry;

[0026] 4. Weigh 0.5 g of the activated carbon fiber obtained in step c, add it into the sol solution obtained in step b, and let it stand for impregnation;

[0027] 5. Dry the solid obtained in step d at a drying temperature of 105°C. After the drying is complete, cool to room temperature to obtain the phosphorus-removing adsorbent.

Embodiment 2

[0029] The concrete steps of this embodiment are:

[0030] 1. Prepare 10mL of 0.25mol / L ferric nitrate solution;

[0031] 2. Heat 40mL of deionized water to 100°C, gradually drop the ferric nitrate solution in a until the solution turns brown. Remove the beaker, stop heating, and obtain 0.05mol / L ferric hydroxide colloidal solution after cooling.

[0032] Reaction equation: Fe(NO 3 ) 3 +3H 2 O → Fe(OH) 3 (colloid)+3HNO 3 ;

[0033] 3. Cut the activated carbon fibers into 0.4-0.6cm cubes, wash with water for several times, soak in deionized water, filter and dry;

[0034] 4. Weigh 0.5 g of the activated carbon fiber obtained in step c, add it into the sol solution obtained in step b, and let it stand for impregnation;

[0035] 5. Dry the solid obtained in step d at a drying temperature of 105°C. After the drying is complete, cool to room temperature to obtain the phosphorus-removing adsorbent.

Embodiment 3

[0037] The concrete steps of this embodiment are:

[0038] 1. Prepare 10mL of 0.5mol / L ferric nitrate solution;

[0039] 2. Heat 40mL of deionized water to 100°C, gradually drop the ferric nitrate solution in a until the solution turns brown. Remove the beaker, stop heating, and obtain 0.1mol / L ferric hydroxide colloidal solution after cooling.

[0040] Reaction equation: Fe(NO 3 ) 3 +3H 2 O → Fe(OH) 3 (colloid)+3HNO 3 ;

[0041] 3. Cut the activated carbon fibers into 0.4-0.6cm cubes, wash with water for several times, soak in deionized water, filter and dry;

[0042] 4. Weigh 0.5 g of the activated carbon fiber obtained in step c, add it into the sol solution obtained in step b, and let it stand for impregnation;

[0043] 5. Dry the solid obtained in step d at a drying temperature of 105°C. After the drying is complete, cool to room temperature to obtain the phosphorus-removing adsorbent.

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Abstract

The invention relates to a preparation method of an active carbon fiber phosphorous removal agent loaded with ferric oxide hydrate, belonging to the technical field of preparation process of phosphorous adsorption removal agents. The preparation method in the invention has the characteristics of being short in preparation time, simple in steps, simple and practicable in operation and the like; and the obtained composite adsorbent has the advantages of being uniform in fiber surface load, large in load capability, excellent in adsorption performance, low in preparation cost and the like.

Description

technical field [0001] The invention relates to a preparation method of a composite dephosphorization agent, and belongs to the technical field of the preparation process of an adsorption dephosphorization agent. That is, a sol-gel impregnation preparation method of activated carbon fiber dephosphorization agent loaded with hydrated iron oxide. Background technique [0002] At present, the water pollution problem is all over the world, especially near cities and industrial areas. Water pollution is particularly serious. Even developed countries have not completely solved the problem of water pollution. Another problem facing the world is the shortage of water resources. To a certain extent, it restricts the development of regional economy. With the rapid development of industry and the continuous improvement of rural urbanization, the shortage of water supply and sewage purification will become one of the main problems faced by our country and even all over the world. Wit...

Claims

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Application Information

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IPC IPC(8): B01J20/32
Inventor 张玲刘建勇周奇万里华刘凡清
Owner SHANGHAI UNIV
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