Sewage treatment membrane material and preparation method thereof

A technology for sewage treatment and membrane materials, which is applied in water/sewage treatment, adsorbed water/sewage treatment, light water/sewage treatment, etc., and can solve the problems of poor membrane performance stability, poor compatibility, and high price. , to achieve the effect of improving sewage treatment effect, operation control method, and convenient recovery and separation.

Active Publication Date: 2021-01-05
中煤(北京)环保股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the compatibility between the film substrate polyvinylidene fluoride and nano-titanium dioxide is not good, and the phenomenon of extravasation is prone to occur during the long-term use of the film, resulting in poor stability of the film performance, and this film contains polyvinylidene fluoride This substrate is expensive

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Embodiment 1 provides a kind of preparation method of sewage treatment membrane material, is characterized in that, comprises the steps:

[0031] Step S1, preparation of polymerizable sulfuryl diimidazole base monomer: add N,N'-sulfuryl diimidazole and trifluorochrysanthemic acid into an organic solvent, stir and react at 40°C for 4 hours, and spin The solvent was evaporated, and the product was washed 3 times with ether, and then the ether was removed by rotary evaporation to obtain a polymerizable sulfuryl diimidazolium monomer;

[0032]Step S2, preparation of 2,4,6-tris[(p-carboxyphenyl)amino]-1,3,5-triazine modified by ethoxy silicon: 2-(3,4-epoxycyclohexane Base) ethyltriethoxysilane, 2,4,6-tris[(p-carboxyphenyl)amino]-1,3,5-triazine were added to tetrahydrofuran, stirred and reacted at 70°C for 6 hours, and then Removal of tetrahydrofuran by rotary evaporation to obtain silicon ethoxy modified 2,4,6-tris[(p-carboxyphenyl)amino]-1,3,5-triazine;

[0033] Step S3, ...

Embodiment 2

[0040] Embodiment 2 provides a kind of preparation method of sewage treatment membrane material, is characterized in that, comprises the steps:

[0041] Step S1. Preparation of polymerizable sulfuryl diimidazole base monomer: add N,N'-sulfuryl diimidazole and trifluorochrysanthemic acid into an organic solvent, stir and react at 45°C for 4.5 hours, and spin Evaporate to remove the solvent, wash the product with ether for 3-7 times, and then remove the ether by rotary evaporation to obtain a polymerizable sulfuryl diimidazolium monomer;

[0042] Step S2, preparation of 2,4,6-tris[(p-carboxyphenyl)amino]-1,3,5-triazine modified by ethoxy silicon: 2-(3,4-epoxycyclohexane Base) ethyltriethoxysilane, 2,4,6-tris[(p-carboxyphenyl)amino]-1,3,5-triazine were added to tetrahydrofuran, stirred and reacted at 73°C for 6.5 hours, and then Removal of tetrahydrofuran by rotary evaporation to obtain silicon ethoxy modified 2,4,6-tris[(p-carboxyphenyl)amino]-1,3,5-triazine;

[0043] Step S3,...

Embodiment 3

[0050] Embodiment 3 provides a kind of preparation method of sewage treatment membrane material, is characterized in that, comprises the steps:

[0051] Step S1, preparation of polymerizable sulfuryl diimidazole base monomer: add N,N'-sulfuryl diimidazole and trifluorochrysanthemum acid into an organic solvent, stir and react at 50°C for 5 hours, and spin The solvent was evaporated, and the product was washed 5 times with ether, and then the ether was removed by rotary evaporation to obtain a polymerizable sulfuryl diimidazolium monomer;

[0052] Step S2, preparation of 2,4,6-tris[(p-carboxyphenyl)amino]-1,3,5-triazine modified by ethoxy silicon: 2-(3,4-epoxycyclohexane Base) ethyltriethoxysilane, 2,4,6-tris[(p-carboxyphenyl)amino]-1,3,5-triazine were added to tetrahydrofuran, stirred and reacted at 75°C for 7 hours, and then Removal of tetrahydrofuran by rotary evaporation to obtain silicon ethoxy modified 2,4,6-tris[(p-carboxyphenyl)amino]-1,3,5-triazine;

[0053] Step S3,...

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PUM

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Abstract

The invention discloses a preparation method of a sewage treatment membrane material, which is characterized by comprising the following steps: S1, preparing a polymerizable sulfuryl diimidazolium salt monomer, S2, preparing ethoxysilane modified 2, 4, 6-tri [(p-carboxyphenyl) amino]-1, 3, 5-triazine, and S3, preparing a membrane material. The invention also discloses the sewage treatment membranematerial prepared according to the preparation method of the sewage treatment membrane material and application of the sewage treatment membrane material in sewage treatment. The sewage treatment membrane material disclosed by the invention is excellent in comprehensive performance, good in performance stability, remarkable in sewage treatment effect, capable of effectively catalyzing organic matters in sewage to be decomposed and adsorbing and separating heavy metal ions in the sewage, and long in service life.

Description

technical field [0001] The invention relates to the technical field of sewage treatment, in particular to a sewage treatment membrane material and a preparation method thereof. Background technique [0002] With the rapid expansion of the manufacturing industry and the frequent occurrence of sewage accidents in chemical companies, the discharge of heavy metal ions, organic dyes, and sewage containing toxic and harmful organic substances has seriously threatened the ecosystem and human health. In addition, the global shortage of water resources is becoming more and more serious. How to efficiently treat sewage has become a difficult problem that sewage discharge enterprises have to face. [0003] Traditional sewage treatment methods mainly include biological methods, electrolytic methods, chemical methods and photocatalytic methods. The biological method occupies a large area, the scope of application is narrow, and the effect is not ideal; although the electrolysis method i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D71/70B01D67/00B01J20/26B01J20/28B01J31/06C02F1/28C02F1/30C02F1/44B01J20/30C02F101/30
CPCB01D71/70B01D67/0079B01J20/262C02F1/44B01J20/28033B01J20/06B01J35/004B01J31/069C02F1/285C02F1/281C02F1/30C02F2101/308C02F2305/10
Inventor 王平
Owner 中煤(北京)环保股份有限公司
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