Preparation method of hydrophobic Arabic gum flocculant for antibiotic treatment

A gum arabic and hydrophobic technology, applied in the direction of flocculation/sedimentation water/sewage treatment, etc., can solve the problems of unsatisfactory tetracycline removal effect, cumbersome preparation process, and secondary pollution of the environment, and achieve good social and economic benefits, water-soluble Good performance and high conversion rate

Inactive Publication Date: 2020-09-15
CHONGQING TECH & BUSINESS UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The formed heterogeneous Fenton-like reaction system can simultaneously exert the adsorption effect of chitosan cross-linked body and the catalytic performance of nano-Fe3O4, realize the complete degradation of tetracycline on the basis of adsorption to water, and greatly improve the tetracycline The removal rate solves the problem that single adsorption is not ideal for the removal of tetracycline, but the preparation process is cumbersome, and too many raw materials are added, which may cause secondary pollution to the environment

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] The preparation method of the hydrophobic gum arabic flocculant for antibiotic treatment is prepared in the following manner:

[0026] 1) Weigh a certain amount of gum arabic and place it in distilled water, stir until the gum arabic is completely dissolved to obtain a gum arabic solution with a concentration of 10%, then add AM and HEMA monomers in a ratio of 1:1 until the two are completely dissolved.

[0027] 2) Slowly add 0.04% surfactant cetyltrimethylammonium bromide (CTAB) dropwise under stirring water bath heating condition, and then add 0.6% initiator cerium ammonium nitrate.

[0028] 3) Place the reactor in a closed stainless steel (SUS316) chamber equipped with a vacuum line, and feed F at a pressure of 5 KPa into the reactor 2 (diluted from 10% to 5%) for fluorination induction for 1h.

[0029] 4) After the induction is completed, the reactor is sealed, and the polymerization reaction is initiated by heating at a water bath temperature of 60°C under the sti...

Embodiment 2

[0031] Prepare a kind of preparation method of the hydrophobic gum arabic flocculant that is used for antibiotic treatment in the following manner:

[0032] 1) Weigh a certain amount of gum arabic and place it in distilled water, stir until the gum arabic is completely dissolved to obtain a gum arabic solution with a concentration of 10%, then add AM and HEMA monomers in a ratio of 3:1 until the two are completely dissolved.

[0033] 2) Slowly add 0.06% surfactant cetyltrimethylammonium bromide (CTAB) dropwise under stirring water bath heating condition, and then add 0.2% initiator cerium ammonium nitrate.

[0034] 3) Place the reactor in a closed stainless steel (SUS316) chamber equipped with a vacuum line, and feed F at a pressure of 10 KPa into the reactor 2 (diluted from 10% to 5%) for fluorination induction 4h.

[0035]4) After the induction is completed, the reactor is sealed, and the polymerization reaction is initiated by heating at a water bath temperature of 60°C un...

Embodiment 3

[0037] The preparation method of the hydrophobic gum arabic flocculant for antibiotic treatment is prepared in the following manner:

[0038] 1) Weigh a certain amount of gum arabic and place it in distilled water, stir until the gum arabic is completely dissolved to obtain a gum arabic solution with a concentration of 15%, then add AM and HEMA monomers in a ratio of 1:1 until the two are completely dissolved.

[0039] 2) Slowly add 0.04% surfactant cetyltrimethylammonium bromide (CTAB) dropwise under stirring water bath heating condition, and then add 0.2% initiator cerium ammonium nitrate.

[0040] 3) Place the reactor in a closed stainless steel (SUS316) chamber equipped with a vacuum line, and feed F at a pressure of 10 KPa into the reactor 2 (diluted from 10% to 5%) for fluorination induction 4h.

[0041] 4) After the induction is completed, the reactor is sealed, and the polymerization reaction is initiated by heating at a water bath temperature of 40°C under the stirri...

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Abstract

The invention discloses a preparation method of a hydrophobic Arabic gum flocculant for antibiotic treatment, which is characterized in that Arabic gum, acrylamide (AM) and hydroxyethyl methacrylate (HEMA) are used as raw materials in the method; by adding Arabic gum into distilled water to prepare an aqueous solution, then sequentially adding AM and HEMA until AM and HEMA are completely dissolved, slowly dropwise adding a surfactant cetyl trimethyl ammonium bromide (CTAB) under the condition of stirring, water bath and heating, and then adding an initiator ceric ammonium nitrate, placing thereactor in a closed stainless steel (SUS316) chamber equipped with a vacuum line, and introducing F2 of a certain pressure into the reactor for fluorination induction; and sealing the reactor after the induction is finished, heating in a water bath under a stirring condition to initiate a polymerization reaction, and curing and purifying to obtain the hydrophobic Arabic gum flocculant for antibiotic treatment. The method is stable in reaction and easy to control, and the obtained hydrophobic Arabic gum is good in solubility and excellent in antibiotic treatment effect and has a good application prospect.

Description

technical field [0001] The invention belongs to the technical field of flocculants, and in particular relates to a preparation method of a hydrophobic gum arabic flocculant used for antibiotic treatment. Background technique [0002] Coagulation is widely used in water treatment because of its simplicity, cost-effectiveness and high efficiency. In the coagulation experiment, the flocculant plays the main role. The flocculant is an indispensable chemical agent in domestic water and wastewater treatment, and is an important environmental ecological material. Pollution control and other fields play an important role. In the process of water treatment, it mainly plays the role of adsorption, electric neutralization, compression of electric double layer, adsorption, and bridging. Flocculants mainly include inorganic flocculants, organic polymer flocculants, natural organic polymer flocculants and microbial flocculants. [0003] Gum Arabic is a natural polysaccharide with good ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F251/00C08F220/56C08F220/20C02F1/56
CPCC08F251/00C02F1/56
Inventor 郑洁唐晓旻
Owner CHONGQING TECH & BUSINESS UNIV
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