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Method for adsorbing chrome azurol S through magnetic pomelo peel

A technology of chrome azure and grapefruit peel is applied in the field of industrial sewage treatment to achieve the effects of less environmental pollution, good regeneration performance and convenient desorption

Active Publication Date: 2017-01-04
UNIV OF JINAN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The adsorption method also has some disadvantages in the application process, such as desorption and separation

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0013] Example 1 (1) Collect pomelo spongy inner skin, wash, cut into pieces, and use 2% H 2 SO 4 Soak for 24 hours, drain and spread the pomelo peel on a tray, keep it dry in an electric blast drying oven at 60°C for 40 hours, take it out and grind it with an agate mortar to obtain product 1; weigh 4.0g FeCl 3 ·6H 2 O, 2.0g FeCl 2 4H 2 O. 1.5 g of product 1 was placed in a three-necked flask, and 80 mL of deionized water was added to magnetically stir for 40 min, and 20 mL of ammonia water was measured in a graduated cylinder. Use a constant pressure dropping funnel to add dropwise and nitrogen gas, heat in a water bath at 60°C for 70 min, magnetically separate the product, wash, dry in vacuum at 60°C, and grind in an agate mortar to obtain magnetic pomelo peel;

[0014] (2) Pipette 1.00 mL of 10 mg / mL chromazurin S into a 100 mL Erlenmeyer flask, add 20.00 mL of deionized water, 0.1000 g of magnetic grapefruit peel, add acid to adjust the pH of the solution to 3.0, and ...

Embodiment 2

[0015] Example 2 (1) Collect the spongy inner skin of pomelo, wash, cut into pieces, and use 3% H 2 SO 4 Soak for 24 hours, drain and spread the pomelo peel on a tray, keep it dry in an electric blast drying oven at 70°C for 44 hours, take it out and grind it with an agate mortar to obtain product 1; weigh 4.0g FeCl 3 ·6H 2 O, 2.0g FeCl 2 4H 2 O. Put 2.0 g of product 1 in a three-necked flask, add 80 mL of deionized water and magnetically stir for 50 min, and measure 25 mL of ammonia water with a graduated cylinder. Use a constant pressure dropping funnel to add dropwise and nitrogen gas, heat in a water bath at 60°C for 70 min, magnetically separate the product, wash, dry in vacuum at 60°C, and grind in an agate mortar to obtain magnetic pomelo peel;

[0016] (2) Pipette 2.00 mL of 10 mg / mL chromazurin S into a 100 mL Erlenmeyer flask, add 20.00 mL of deionized water, 0.1000 g of magnetic grapefruit peel, add acid to adjust the pH of the solution to 2.0, and keep After ...

Embodiment 3

[0017] Example 3 (1) Collect the spongy inner skin of pomelo, wash, cut into pieces, and use 4% H 2 SO 4 Soak for 24 hours, drain and spread the pomelo peel on a tray, keep it dry in an electric blast drying oven at 60-80°C for 48 hours, take it out and grind it with an agate mortar to obtain product 1; weigh 4.0g FeCl 3 ·6H 2 O, 2.0g FeCl 2 4H 2 O. 3.0 g of product 1 was placed in a three-necked flask, and 80 mL of deionized water was added to magnetically stir for 60 min, and 30 mL of ammonia water was measured by a graduated cylinder. Use a constant pressure dropping funnel to add dropwise and nitrogen gas, heat in a water bath at 60°C for 70 min, magnetically separate the product, wash, dry in vacuum at 60°C, and grind in an agate mortar to obtain magnetic pomelo peel;

[0018] (2) Pipette 4.00 mL of 10 mg / mL chromazurin S into a 100 mL Erlenmeyer flask, add 20.00 mL of deionized water, 0.1000 g of magnetic grapefruit peel, add acid to adjust the pH of the solution to...

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PUM

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Abstract

The invention discloses a method for adsorbing chrome azurol S through magnetic pomelo peel. According to the method, the dye chrome azurol S is adsorbed by taking the magnetic pomelo peel as an adsorption material. The method is mainly characterized in that spongy inner peel of pomelo peel is treated, then the magnetic pomelo peel is synthesized, the adsorption capacity of the magnetic pomelo peel to the chrome azurol S is 381.6 mg / g under certain conditions, the magnetic pomelo peel completing adsorption can be desorbed with NaOH with a certain concentration, and the desorption rate reaches 89.02%. The adsorption rate of secondary adsorption of regenerated magnetic pomelo peel is 91.86%, and adsorption capacity is 367.4 mg / g.

Description

technical field [0001] The invention belongs to the field of industrial sewage treatment. Specifically, the magnetic pomelo peel mesocarp is used to treat waste water containing chrome azure S formed in the production process of the printing and dyeing industry, and to absorb chrome azure S. Background technique [0002] With the rapid development of the dye and printing and dyeing industries, a large amount of industrial wastewater containing dyes is discharged into the water body every year. This type of wastewater has deep color, high content of organic pollutants, complex components, water quality changes, high biological toxicity, and is difficult to biodegrade. The dye has strong photolysis and oxidation resistance, which has brought serious pollution to the environment. At present, there are biological, chemical and physical methods for treating dye sewage. Physical methods include membrane separation, extraction and adsorption. Among them, the adsorption method is ...

Claims

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Application Information

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IPC IPC(8): C02F1/28B01J20/24B01J20/28C02F101/30
Inventor 李燕张以河魏琴李响征王欢魏东
Owner UNIV OF JINAN
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