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Preparation method and application of sewage purifying medium

A sewage purification and medium technology, applied in the field of sewage purification medium preparation, can solve the problems of low reusability of sewage purification medium and sludge generation, and achieve the effect of easy operation, good hydrophilicity and simple operation in the preparation process

Inactive Publication Date: 2015-07-01
XI'AN PETROLEUM UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Most of the traditional hospital sewage purification media only have one of the two functions of sterilization or adsorption of heavy metal ions. The reuse of sewage purification media is not high, and by-products such as sludge will be produced.

Method used

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  • Preparation method and application of sewage purifying medium
  • Preparation method and application of sewage purifying medium
  • Preparation method and application of sewage purifying medium

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Embodiment Construction

[0021] The present invention will be further elaborated below in conjunction with specific examples.

[0022] (1) Dissolve 1g of amino microspheres and 0.08g of 4-dimethylaminopyridine (DMAP) in 30mL of dry dichloromethane, stir well and add dropwise 1.25mL of trifluoroacetic acid and 8mmol of 2-bromoisobutyryl bromide The mixed solution was continued to stir for 2 hours under ice-bath conditions, then the reaction temperature was raised to room temperature and continued to stir for 12 hours;

[0023] (2), after the step (1) solution is reacted, it is washed with dry dichloromethane, acetone and methanol in sequence, and then placed in a vacuum drying oven at 60° C. for 12 hours;

[0024] (3) Add the amino microspheres obtained in step (2) to a mixture containing ethylene glycol methacrylate (17.5mL, 63mmol), 2-2 bipyridine (490mg, 3.15mmol), methanol and water (V 水 :V 甲醇 =1:4) in the mixed degassed solution, add CuBr (180mg, 1.26mmol) and CuBr 2 (14mg, 0.063mmol), 60 ° C ...

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Abstract

The invention discloses a preparation method and application of a sewage purifying medium. The preparation method of the sewage purifying medium comprises the following steps: carrying out reaction on macromolecular microspheres and 2-bromoisobutyryl bromide under catalysis of 4-dimethylaminopyridine to prepare an initiator; adding cuprous bromide, 2-2dipyridyl and poly6-glycol methacrylate to react to obtain activated macromolecular microspheres; carrying out reaction on the macromolecular microspheres and carbonyldimidazole to obtain an activated polymer brush; and then carrying out lucifugal reaction on the polymer brush and bactericidal proteins and 4-dimethylaminopyridine. The method is simple in preparation process, and the prepared sewage purifying medium after surface modification by virtue of the macromolecular microspheres is good in hydrophilicity, can suspend on the surface of sewage, and is well contacted with sewage, so that heavy metals in the sewage are adsorbed, sterilized and disinfected by taking a lysozyme as a carrier protein. The medium is not soluble in water, can be easily separated from the sewage and can be recycled after post-treatment.

Description

technical field [0001] The invention relates to the field of sewage purification treatment, in particular to a preparation method and application of a sewage purification medium. Background technique [0002] The source and composition of hospital sewage are complex. In addition to toxic and harmful physical and chemical pollutants and radioactive pollution, it also contains pathogenic microorganisms such as bacteria and viruses. It has the characteristics of space pollution, acute infection and latent infection. If it is not treated effectively , not only pollute the environment, but also become an important way for the spread of the disease. In my country's national environmental protection standard (HJ2029-2013), the hospital sewage treatment engineering technology is strictly regulated, which shows that the country attaches great importance to hospital sewage treatment. [0003] At present, the commonly used methods for hospital sewage treatment include physical methods...

Claims

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Application Information

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IPC IPC(8): C02F3/34C12N11/08C07K17/08
Inventor 熊迅宇
Owner XI'AN PETROLEUM UNIVERSITY
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