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A method for treating genistein-containing wastewater

A technology of genistein and isoflavones, which is applied in the field of pollutant degradation, can solve the problems of complex operation, low processing capacity, high energy consumption of activation and regeneration, and achieve the effects of simple reaction conditions, low processing cost, and less human injury

Active Publication Date: 2022-06-24
SHENYANG INST OF APPL ECOLOGY CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The biological method is a method of using microorganisms to adsorb or degrade phenolic pollutants. This method is greatly affected by environmental factors such as pH, temperature and dissolved oxygen, and sometimes has disadvantages such as highly toxic intermediate products.
The common chemical method mainly reacts with phenolic pollutants by adding chemical agents. This method can quickly treat refractory phenolic pollutants, but there are problems such as small amount of treatment and high cost.
Physicochemical methods mainly include extraction and adsorption methods. The extraction method uses the difference in the solubility of phenol between the extraction agent and water to separate, but the operation is relatively complicated, the extraction agent is expensive and difficult to regenerate, and it will cause secondary pollution; The method is to use an adsorbent to absorb phenolic pollutants in the solution. This method has a good treatment effect and can be reused, but there are problems such as high energy consumption for activation and regeneration, and insufficient adsorption capacity.

Method used

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  • A method for treating genistein-containing wastewater
  • A method for treating genistein-containing wastewater
  • A method for treating genistein-containing wastewater

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Methylene blue is a soluble organic substance, and using this substance as a sensitizer, the reaction steps of using methylene blue to sensitize photolysis of genistein are as follows:

[0022] Prepare 250 mL of genistein solution with an initial concentration of 5 μmol / L in a beaker, add 125 μL of 10 mmol / L methylene blue, then add 3.5 g of sodium perchlorate, adjust the pH to 3 with perchloric acid, and then pour it into a Pyrex test tube , turn on the xenon lamp to preheat for 20 minutes, then put the Pyrex test tube into the photolysis box for photolysis, and take samples at 0, 0.5, 1, 2, 3, 4.5 and 6 hours and put them in liquid phase vials for HPLC analysis (see figure 1 ). The chromatographic conditions of the HPLC were as follows: the column was an Agilent C18 reversed-phase column (Wonda Sil C18 5 μM); the mobile phase was 60% methanol and 40% buffer (pH=3), and the flow rate was 1 mL / min.

Embodiment 2

[0024] The difference from Example 1 is that:

[0025] Prepare 250 mL of genistein solution with an initial concentration of 5 μmol / L in a beaker, add 125 μL of 10 mmol / L methylene blue, then add 3.5 g of sodium perchlorate, and then pour it into a Pyrex test tube, turn on the xenon lamp to preheat for 20 minutes, Then put the Pyrex test tube into the photolysis box for photolysis, and take samples at 0, 0.5, 1, 2, 3, 4.5 and 6 hours and put them in liquid phase vials for HPLC analysis (see figure 1 ). The chromatographic conditions of HPLC are: chromatographic column Agilent C18 reversed-phase column (Wonda Sil C185 μM); mobile phase is 60% methanol and 40% buffer (pH=3), and the flow rate is 1 mL / min.

Embodiment 3

[0027] The difference from Example 1 is that:

[0028] Prepare 250 mL of genistein solution with an initial concentration of 5 μmol / L in a beaker, add 125 μL of 10 mmol / L methylene blue, add 3.5 g of sodium perchlorate, then adjust the pH to 9 with sodium hydroxide solution, and pour it into a Pyrex test tube , turn on the xenon lamp to preheat for 20 minutes, then put the Pyrex test tube into the photolysis box for photolysis, and take samples at 0, 3, 6, 10, 20, 30, 45, 60 and 100 minutes and put them in the liquid phase vials. HPLC analysis (see figure 1 ).

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Abstract

The invention relates to pollutant degradation technology, in particular to a method for treating genistein-containing wastewater. The small molecule dissolved organic substance is used as a sensitizer and mixed with the wastewater containing phytoestrogen genistein to be treated under natural light for photolysis, thereby degrading the genistein in the wastewater. The method of the invention has the advantages of low cost, simple reaction conditions, good effect and less harm to human bodies, and can be used for the research on treating waste water containing phytoestrogen genistein.

Description

technical field [0001] The invention relates to a pollutant degradation technology, in particular to a method for treating genistein-containing waste water. Background technique [0002] A large number of modern organic industrial raw materials contain phenolic compounds, and phenolic compounds are also one of the representatives of environmental organic pollution, such as phenol, chlorophenols, nitrophenols, alkylphenols, polyphenols, etc. Among them, many phenols have been listed as priority pollutants by the EPA. Genistein (5,7,4'-trihydroxyisoflavone, Gs) is a phytoestrogen, also known as genistein, which is a typical environmental endocrine disruptor. Therefore, environmental endocrine disruptors and environmental migration It has all the dangers. Genistein is a phenol with a polyphenolic hydroxyl structure, which is anti-oxidative. Under alkaline conditions, the hydrogen atom on the phenolic hydroxyl group is easy to separate from the oxygen atom, and the hydrogen i...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F1/30C02F101/34
CPCC02F1/30C02F2101/34
Inventor 张思玉杨晨赵青张雪娇李英华李海波
Owner SHENYANG INST OF APPL ECOLOGY CHINESE ACAD OF SCI
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