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Method for reducing biological toxicity of antibiotic wastewater through modified hyper-cross-linked resin adsorption

A technology of ultra-high cross-linked resin and antibiotic wastewater, which is applied in the direction of adsorption water/sewage treatment, chemical instruments and methods, and other chemical processes. It can solve the problems of small adsorption of organic pollutants, reduce concentration, reduce inhibition, The effect of easy preparation

Active Publication Date: 2019-03-19
CHONGQING TECH & BUSINESS UNIV
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  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The purpose of the present invention is to provide a method for reducing the biotoxicity of antibiotic wastewater through the adsorption of modified ultra-high cross-linked resins, so as to solve the problem that the existing cross-linked resins with styrene-divinylbenzene as the skeleton are more polar organic compounds. The problem of small pollutant adsorption

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  • Method for reducing biological toxicity of antibiotic wastewater through modified hyper-cross-linked resin adsorption
  • Method for reducing biological toxicity of antibiotic wastewater through modified hyper-cross-linked resin adsorption
  • Method for reducing biological toxicity of antibiotic wastewater through modified hyper-cross-linked resin adsorption

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Embodiment 1

[0028] A method for reducing the biotoxicity of antibiotic wastewater by modifying super-high cross-linked resin adsorption, specifically comprising the following treatment steps:

[0029] (1) prepare modified resin, the chemical structural formula of modified resin monomer is:

[0030]

[0031] The synthetic steps of modified resin are as follows:

[0032]

[0033] Step a. using 4,4-dichloromethylbiphenyl as a raw material, using anhydrous ferric chloride as a catalyst, and carrying out self-polymerization through a Friedel-Crafts reaction to prepare a CMB-CMB matrix resin material;

[0034] Step b. Using N,N-dimethylformamide (DMF) as a solvent, under stirring conditions at room temperature, use 2-chloro-4,6-diamine-1, 3,5-triazine substitution, CMB-CMB matrix resin material and 2-chloro-4,6-diamine-1,3,5-triazine material ratio = 1:2, this process ensures that 2-chloro - Excess of 4,6-diamino-1,3,5-triazine.

[0035] After reacting for 24 h, the solvent in the reac...

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Abstract

The invention belongs to the technical field of treatment of water, wastewater, sewage or sludge and in particular discloses a method for reducing the biological toxicity of antibiotic wastewater through modified hyper-cross-linked resin adsorption. The method comprises the following steps: (1) preparing modified resin; (2) enabling the wastewater to pass through an adsorption column filled with modified resin prepared by step (1); (3) taking out the modified resin in the adsorption column to obtain resin to be recycled; and injecting the resin to be recycled and a washing solution into a resin recycling device and carrying out adsorption recycling. The method provided by the invention can be used for effectively removing organic pollutants in the wastewater.

Description

technical field [0001] The application of the invention belongs to the technical field of water, waste water, sewage or sludge treatment, and specifically discloses a method for reducing the biotoxicity of antibiotic waste water through adsorption of modified ultra-high cross-linked resin. Background technique [0002] Antibiotic wastewater belongs to refractory organic wastewater, and the residual organic pollutants in it will strongly inhibit or even kill some microorganisms, thus greatly affecting the treatment effect of microorganisms on wastewater. Therefore, before biochemical treatment of antibiotic wastewater, it is necessary to Organic pollutants are detoxified and deactivated pretreatment. [0003] In the early 1970s, Davankov et al. synthesized a class of porous polymer adsorbents, which were obtained by crosslinking linear polystyrene or recrosslinking low-crosslinked polystyrene through the Friedel-Crafts reaction. Due to the high degree of cross-linking of thi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F1/28B01J20/26B01J20/30
CPCB01J20/262C02F1/285
Inventor 齐高相杨虹燕阿拉牧申渝张海东陈佳王建辉
Owner CHONGQING TECH & BUSINESS UNIV