Antibacterial and antifouling oil-water separation material and preparation method thereof

A technology of oil-water separation and anti-fouling, applied in the field of water treatment, to achieve good application prospects, simple method, and high-efficiency anti-fouling effect

Active Publication Date: 2018-12-25
ZHEJIANG SCI-TECH UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the separation materials involved in the above patents lack the ability to prevent microbial contamination in complex water treatment.

Method used

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  • Antibacterial and antifouling oil-water separation material and preparation method thereof
  • Antibacterial and antifouling oil-water separation material and preparation method thereof
  • Antibacterial and antifouling oil-water separation material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] (1) Immerse a 5cm×5cm cellulose filter membrane in distilled water, boil and activate it for 30min, then wash it for later use.

[0024] (2) Immerse the activated cellulose filter membrane in step (1) in 30 mL of copper sulfate solution with a concentration of 0.5 mol / L, stir at room temperature at 120 rpm for 30 min, and slowly adjust the pH of the solution to 11 with NaOH solution of 1.0 mol / L .

[0025] (3) Add 30 mL of glucose solution with a concentration of 0.5 mol / L to the mixed system obtained in step (2), and reduce in situ at 25° C. for 6 h. Then it was taken out, washed and dried to obtain a film material with in-situ deposition of copper oxide inorganic nanoparticles on the surface, which is an antibacterial and antifouling oil-water separation material, named S1.

Embodiment 2

[0027] (1) Immerse a 5cm×5cm cellulose filter membrane in distilled water, boil and activate it for 30min, then wash it for later use.

[0028] (2) Immerse the activated cellulose filter membrane in step (1) in 30 mL of copper acetate solution with a concentration of 1.0 mol / L, stir at room temperature at 120 rpm for 30 min, and slowly adjust the pH of the solution to 10 with 1.0 mol / L of NaOH solution. .

[0029] (3) Add 30 mL of glucose solution with a concentration of 1.0 mol / L to the mixed system obtained in step (2), and reduce in situ at 70° C. for 4 h. Then it was taken out, washed and dried to obtain a film material with in-situ deposition of cuprous oxide inorganic nanoparticles on the surface, which is an antibacterial and antifouling oil-water separation material, named S2.

Embodiment 3

[0031] (1) Immerse a 5cm×5cm polyester filter membrane in 0.1mol / L NaOH solution, boil it for 30min and then wash it for later use.

[0032] (2) Immerse the polyester filter membrane activated in step (1) in 30 mL of copper acetate solution with a concentration of 1.0 mol / L, stir at 120 rpm for 30 min at room temperature, and then slowly adjust the pH of the solution to 12 with 1.0 mol / L NaOH solution.

[0033] (3) Add 30 mL of glucose solution with a concentration of 1.5 mol / L to the mixed system obtained in step (2), and perform in-situ reduction at 120° C. for 3 h. Then it was taken out, washed and dried to obtain a film material with in-situ deposition of cuprous oxide inorganic nanoparticles on the surface, which is an antibacterial and antifouling oil-water separation material, named S3.

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Abstract

The invention discloses an antibacterial and antifouling oil-water separation material and a preparation method thereof. The preparation method comprises the following steps: soaking a filtering membrane material into distilled water or a NaOH solution, boiling the water or the solution for activating treatment, and cleaning for later use; soaking the membrane material subjected to activating treatment into a Cu<2+> solution, and stirring at normal temperature; performing in-situ reduction on a mixing system to obtain the antibacterial and antifouling oil-water separation material. The method is simple, and the antibacterial and antifouling oil-water separation material is good in antibacterial effect, high in antifouling performance and high in separation efficiency, and can be used for purifying and separating complicated oily wastewater containing inorganic matters, organic matters and microorganisms.

Description

technical field [0001] The invention relates to an antibacterial and antifouling oil-water separation material and a preparation method thereof, belonging to the technical field of water treatment. Background technique [0002] Water pollution has become a major issue faced by countries all over the world to implement sustainable development. Among them, oily wastewater, as a common source of pollution, is extremely harmful to environmental protection and ecological balance, so the oil-water separation of oily wastewater is very important. In recent years, membrane separation technology has been applied to the treatment of oily wastewater due to its advantages of low energy consumption, high separation efficiency, and small equipment. However, when the membrane separation method is used to treat oily wastewater, the membrane fouling caused by the presence of inorganic substances, organic substances, microorganisms, etc. in the sewage reduces the separation performance and r...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01D69/02B01D67/00B01D17/02C02F1/40
CPCB01D17/085B01D67/0093B01D69/02B01D2323/04B01D2325/48C02F1/40
Inventor 刘琳陈选章钦姚菊明
Owner ZHEJIANG SCI-TECH UNIV
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