Antimicrobial algae-killing active carbon and preparation method

A technology of activated carbon and acrylonitrile, applied in chemical instruments and methods, sterilization/microdynamic water/sewage treatment, adsorbed water/sewage treatment, etc. Efficient, easy-to-clean effect

Inactive Publication Date: 2009-01-07
HUAZHONG NORMAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It has no pollution to the environment and solves the problem that physical algae killing methods cannot cure algae blooms

Method used

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  • Antimicrobial algae-killing active carbon and preparation method
  • Antimicrobial algae-killing active carbon and preparation method

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0027] Take 1-2g of acrylonitrile-styrene resin completely dissolved in 50-100mL of acetone, heat to 60 or 65 or 70°C and evaporate until the solution is slightly viscous, add 20g of activated carbon, stir and evaporate at 120 rpm until the acetone is completely volatilized, The acrylonitrile-styrene resin is evenly wrapped on the surface of the activated carbon, and dried at 80°C. Place the dried activated carbon in 100mL of chelating solution prepared by adding 0.8g of copper sulfate and 0.4g of sodium thiosulfate per 100mL of deionized water, 50 or 51 or 53 or 56 or 59 or 63 or 67 Or stir and react at 70°C for 1 hour, pour out the reaction solution, soak and wash in deionized water 3 to 5 times, 100mL each time, to remove the reaction solution remaining on the surface of the activated carbon, and dry to obtain the bactericidal and algae-removing activated carbon.

example 2

[0029] Take 10-20g of acrylonitrile-styrene resin completely dissolved in 500mL of acetone, heat to 57 or 60 or 68°C to evaporate until the solution is slightly viscous, add 200g of activated carbon, stir and evaporate at 120 rpm until the acetone is completely volatilized, and the propylene Nitrile-styrene resin is evenly wrapped on the surface of activated carbon and dried at 80°C. Place the dried activated carbon in 1000mL of chelating solution prepared by adding 0.8g of copper sulfate and 0.4g of sodium thiosulfate per 100mL of deionized water, 50 or 54 or 57 or 60 or 62 or 65 or 68 Or stir and react at 70°C for 1 hour, pour out the reaction solution, soak and wash in deionized water 3 to 5 times, 1000mL each time, to remove the reaction solution remaining on the surface of the activated carbon, and dry to obtain the bactericidal and algae-removing activated carbon.

example 3

[0031] Take 15kg of acrylonitrile-styrene resin and completely dissolve it in a reaction kettle filled with 500L of acetone, heat it to 67 or 70 or 75 or 80°C and distill until the solution is slightly viscous and recover acetone, add 200kg of activated carbon, and stir at 120 rpm Evaporate until the acetone is basically volatilized completely, so that the acrylonitrile-styrene resin is evenly wrapped on the surface of the activated carbon, and dried at 80°C. Place the dried activated carbon in 1000L of chelating solution prepared by adding 0.8g of copper sulfate and 0.4g of sodium thiosulfate per 100mL of deionized water, 50 or 52 or 55 or 58 or 61 or 64 or 67 Or stir and react at 70°C for 1 hour, pour out the reaction solution, soak and wash in deionized water 3 to 5 times, 1000L each time, to remove the reaction solution remaining on the surface of the activated carbon, and dry to obtain the bactericidal and algae-removing activated carbon. Antibacterial and algicidal data ...

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Abstract

The invention discloses antibacterial and algae-killing active carbon and a preparation method thereof, which comprises the following steps: applying acrylonitrile-styrol reisn to the surface of active carbon; performing chemical treatment so as to combine the acrylonitrile-styrol reisn with copper ions. The acrylonitrile-styrol reisn is firmly combined on active carbon, thus being safe and nontoxic to the environment. The antibacterial and algae-killing active carbon has an antibacterial effect on tested golden staphylococcus, colon bacillus, white candida, micrococcus lutea, bacillus subtilis, etc., and has a good effect of killing various types of algae such as microcystic aeruginosa DS, microcystic aeruginosa 7820, Plectonemaboryanum IU594, chlammydomonas reinhardtii, scenedesmus obliquus, etc., which cause algae bloom in fresh water. The antibacterial and algae-killing active carbon can be used for sterilization and treatment of algae bloom in fresh water in environmental cleaning.

Description

technical field [0001] The invention relates to an antibacterial and algaecidal activated carbon, and also relates to a preparation method of the antibacterial and algaecidal activated carbon. The application scope of the antibacterial and algaecidal activated carbon is the field of sterilization in environmental purification and freshwater bloom control. Background technique [0002] "Water blooms" are a natural ecological phenomenon in fresh water. The vast majority of water blooms are caused only by algae, such as cyanobacteria (strictly called cyanobacteria), green algae, diatoms, etc. When " wawter bloom " took place, water generally was blue or green. This " wawter bloom " phenomenon that just has in nature, just on the books in ancient my country history. [0003] After eutrophication in fresh water, "water blooms" appear frequently, the area spreads year by year, and the duration is extended year by year. According to a recent survey, 53%, 28%, 48% and 41% of the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F1/28C02F1/50B01J20/20
Inventor 杨继红张翌
Owner HUAZHONG NORMAL UNIV
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