A kind of preparation method for the cellulose composite membrane that is used for adsorbing heavy metal ions

A technology for adsorbing heavy metals and bacterial cellulose membranes, applied in alkali metal compounds, chemical instruments and methods, adsorption water/sewage treatment, etc., can solve problems such as high operating costs, incomplete treatment, secondary pollution, etc., and achieve environmental protection , Saving polymer solution and saving cost

Inactive Publication Date: 2017-03-22
WUHAN TEXTILE UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

When these methods treat low-concentration (100mg / L) sewage, frequent operations, high operating costs, easy to form secondary pollution, and there are problems of incomplete treatment

Method used

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  • A kind of preparation method for the cellulose composite membrane that is used for adsorbing heavy metal ions

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Effect test

Embodiment 1

[0032] Wash the bacterial cellulose membrane repeatedly with deionized water according to the above method, put the cleaned bacterial cellulose membrane in 300ml distilled water with 6g sodium hydroxide, 6g azodicarbonamide, 0.6g Span-80, and then in 60 ℃ for 1 h, and then washed with deionized water. Configure 0.5mol / L pyrrole solution and 0.25mol / L FeCl 3 solution. The pyrrole solution with a concentration of 0.5 was charged into the first nebulizer reactor (1), and the first reactor (1) was placed in a cooling water bath, and the FeCl solution with a concentration of 0.25 3 The solution is loaded into the third atomization reactor (3), and the third reactor (3) is placed in a cold water bath, and the treated bacterial cellulose membrane is placed in the middle of the second reactor (2), and the bacterial cellulose The membrane plane is perpendicular to the center line of the atomization pipeline, and the atomizers and gas flow bottles in the first atomization reactor (1) ...

Embodiment 2

[0034] Wash the bacterial cellulose membrane repeatedly with deionized water according to the above method, put the cleaned bacterial cellulose membrane in 400ml distilled water with 8g sodium hydroxide, 8g azodicarbonamide, 0.8g Span-80, and then in 60 ℃ for 1 h, and then washed with deionized water. Configure 1mol / L pyrrole solution and 0.5mol / LFeCl 3 solution. The pyrrole solution is loaded into the first atomizer reactor (1), and the first reactor (1) is placed in a cooling water bath, and the FeCl 3 The solution is loaded into the third atomization reactor (3), and the third reactor (3) is placed in a cold water bath, and the treated bacterial cellulose membrane is placed in the middle of the second reactor (2), and the bacterial cellulose The membrane plane is perpendicular to the center line of the atomization pipeline, and the atomizers and gas flow bottles in the first atomization reactor (1) and the third atomization reactor (3) are opened at the same time, so that...

Embodiment 3

[0036] Wash the bacterial cellulose membrane repeatedly with deionized water according to the above method, put the cleaned bacterial cellulose membrane in 500ml distilled water with 10g sodium hydroxide, 10g azodicarbonamide, and 1g Span-80, and then heat it at 60°C It was treated at constant temperature for 1 h, and then washed with deionized water. Configure 1.5mol / L pyrrole solution and 0.75mol / LFeCl 3 solution. The pyrrole solution is loaded into the first atomizer reactor (1), and the first reactor (1) is placed in a cooling water bath, and the FeCl 3The solution is loaded into the third atomization reactor (3), and the third reactor (3) is placed in a cold water bath, and the treated bacterial cellulose membrane is placed in the middle of the second reactor (2), and the bacterial cellulose The membrane plane is perpendicular to the center line of the atomization pipeline, and the atomizers and gas flow bottles in the first atomization reactor (1) and the third atomiza...

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Abstract

The invention relates to a preparation method for a piece of compound cellulose film for adsorbing heavy metal ions. The preparation method obtains the compound cellulose film capable of adsorbing heavy metal ions in sewage through using a piece of foamed bacterial cellulose film as base material and depositing polymer with heavy metal ion adsorption function on the bacterial cellulose film through a fog phase interface polymerization method. The preparation method is simple and convenient for continuous production. The compound cellulose film prepared by the preparation method has a micrometer-nanometer porous structure, the film and sewage contact area is increased, the adsorption efficiency is improved, the heavy metal ion adsorption effect is good, and moreover, the compound cellulose film has advantages of convenience in separation, repeated use and the like. The adsorption film can be broadly used for the industrial waste water treatment.

Description

technical field [0001] The invention relates to a preparation method of a cellulose composite membrane for absorbing heavy metal ions. Specifically, a polymer with the function of adsorbing heavy metal ions is deposited on the bacterial cellulose membrane by the method of mist-phase interfacial polymerization, so that it becomes a cellulose composite membrane with the function of adsorbing heavy metal ions. The invention belongs to the field of heavy metal ion adsorption material preparation. Background technique [0002] In recent years, with the rapid development of industrial production and urbanization, the pollution of the environment by human production activities has become more and more serious. Since water is an important basis for human survival and development, the problem of water pollution has become an urgent problem to be solved. However, in industrial production, electroplating, mining, smelting, printing and dyeing, chemical industries and other industries ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01D69/12B01D71/10B01D67/00B01J20/26B01J20/28B01J20/30C02F1/28C02F1/44C02F101/20
Inventor 许杰王大祥袁野彭硕李梅霞韦炜包海峰徐卫林
Owner WUHAN TEXTILE UNIV
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