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Degradation method and evaluation method for cooperatively processing nine environmental estrogens

An environmental estrogen and synergistic treatment technology is applied in the field of synergistic treatment of the degradation and evaluation of nine environmental estrogens, which can solve the problems of high cost, poor degradation effect and poor operability, and achieves low cost, good degradation effect, Actionable effect

Inactive Publication Date: 2016-06-22
湖北食之安生物技术有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The purpose of the present invention is to provide a degradation and evaluation method for co-processing nine environmental estrogens, aiming to solve the problems of poor degradation effect, poor operability and high cost of existing degradation methods

Method used

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  • Degradation method and evaluation method for cooperatively processing nine environmental estrogens
  • Degradation method and evaluation method for cooperatively processing nine environmental estrogens
  • Degradation method and evaluation method for cooperatively processing nine environmental estrogens

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Experimental program
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Effect test

Embodiment 1

[0064] Embodiment 1: in the electrolytic cell, the concentration of sodium sulfate in the electrolyte is 1.5g / L, the concentration of hydrogen peroxide is 10mg / L, the concentration of sodium chloride is 0.1g / L, the pH value of the electrolyte is 3, and the current density value is set 40mA / cm 2 , the initial concentration of nine environmental estrogen compounds in water samples was 1 μg / L, and the electrolysis time was 60 minutes; the degradation rate of environmental estrogen compounds in the treated water samples was evaluated and analyzed using the SPE-GC-MS evaluation method.

Embodiment 2

[0065] Embodiment 2: in the electrolytic cell, the concentration of sodium sulfate in the electrolyte is 1.5g / L, the concentration of hydrogen peroxide is 10mg / L, the concentration of sodium chloride is 0.1g / L, the pH value of the electrolyte is adjusted to 3, and the current density value is set 40mA / cm 2 , the initial concentration of nine kinds of environmental estrogen compounds in water samples was 1 μg / L, and the electrolysis time was 60 minutes; then 10 mg / L of hydrogen peroxide was added to the water samples, and further processed by electron beam irradiation, and the irradiation dose was 4 kGy; using the The SPE-GC-MS evaluation method was used to evaluate and analyze the degradation rate of environmental estrogen compounds in treated water samples.

Embodiment 3

[0066] Embodiment 3: in the electrolytic cell, the concentration of sodium sulfate in the electrolyte is 1.5g / L, the concentration of hydrogen peroxide is 10mg / L, the concentration of sodium chloride is 0.1g / L, the pH value of the electrolyte is 3, and the current density value is set 40mA / cm 2 , the initial concentration of nine kinds of environmental estrogen compounds in water samples was 100ng / L, and the electrolysis time was 120 minutes; the degradation rate of environmental estrogen compounds in the treated water samples was evaluated and analyzed by using the SPE-GC-MS evaluation method.

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Abstract

The invention discloses a degradation method and evaluation method for cooperatively processing nine environmental estrogens.The degradation method includes the steps that a to-be-processed water sample is filtered through a 0.45-micron microfiltration membrane, a Ti / IrO2-Pt electrode serves as a positive pole, a Ti plate serves as an electrode plate of a negative pole, and the Ti / IrO2-Pt electrode and the Ti plate are inserted into the to-be-degraded water sample; a stirrer is put into the to-be-processed water sample, sodium sulfate serves as an auxiliary electrolyte, and sodium chloride and hydrogen peroxide are added; the stirrer is started, the to-be-processed water solution is in the evenly-stirred-mixed state, and a switch of a direct-current power source is turned on; hydrogen peroxide is added into the water sample subjected to electrochemical processing, and the mixture is further subjected to electro-beam irradiation processing.The evaluation method includes the steps of water sample pretreatment; solid phase extraction; derivatization; gas chromatograph-mass spectrometer detection; data processing.According to the degradation method and the evaluation method, under the effect of a direct current, the good degradation effect on the nine environmental estrogens is achieved, and the degradation method and the evaluation method are simple and easy to carry out, high in operability and low in cost.

Description

technical field [0001] The invention belongs to the technical field of endocrine disruptor control and evaluation, and in particular relates to a degradation and evaluation method for co-processing nine environmental estrogens. Background technique [0002] In the environment, there is a class of environmental estrogens that have estrogen activity and can simulate the function of estrogen. The common ones are octylphenol, nonylphenol, bisphenol A, diethylstilbestrol, estrone, estradiol, estriol, 9 environmental estrogens including estradiol and ethinyl estradiol. With the rapid development of human society, industry and economy, the amount of environmental estrogen discharged into the environment by humans is increasing, and its final destination in the environment is various water bodies, and it is enriched in animals and humans through the food chain. Studies have shown that many human reproductive disorders, developmental abnormalities and some cancers are related to env...

Claims

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Application Information

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IPC IPC(8): C02F9/08G01N30/02C02F101/30C02F101/34
CPCC02F1/305C02F1/444C02F1/46109C02F1/4672C02F9/00C02F2001/46133C02F2101/305C02F2101/34C02F2101/345G01N30/02G01N2030/025
Inventor 廖涛程薇熊光权吴晓翠鉏晓艳耿胜荣李新白婵吴文锦汪兰李海蓝乔宇
Owner 湖北食之安生物技术有限公司
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