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Method for removing estrogen from water body

A technology for estrogen and water body, which is applied in the field of decontamination and water body purification, can solve the problems of not being able to achieve good results and the difficulty of removing conjugated estrogen, and achieve the effects of wide range of use, reduced installation costs, and low operating costs

Inactive Publication Date: 2015-01-21
RUIAN PULUO BIOTECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method is to use the adsorption method to remove the phthalic acid monoester environmental hormones in the environmental water body. Therefore, it can only remove the free estrogen in the water body, and it is difficult to achieve a good removal effect on the conjugated estrogen.
And even for free estrogen, when the concentration of free estrogen is very small, good results cannot be obtained by using this method

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] The method for removing estrogen in the water body of the present invention comprises the following steps, 1. Carry out ultraviolet irradiation treatment to the water body containing estradiol, the radiation intensity of the ultraviolet irradiation is 20μw / cm 2 2. Adjust the pH value of the water body. The pH value of the estrogen-containing water body is 5-7. Under the condition of ultrasonic treatment, the frequency of the ultrasonic wave is 80kHz, and the power is 500W. Add laccase and horseradish peroxidase in the water body, described laccase and horseradish peroxidase are immobilized on the immobilized carrier, and described immobilized carrier is nitrocellulose, and the concentration of described laccase is 0.5 -1U / ml, the concentration of the horseradish peroxidase is more than 3U / ml, react, the time of the reaction is 0.2-1 hour, after the reaction, stir the water body containing estrogen, the stirring speed is 500rpm / min, filtered to obtain purified water.

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Embodiment 2

[0038] The method for removing estrogen in water body of the present invention comprises the following steps, 1. Carry out ultraviolet irradiation treatment to the water body containing estrol, the radiation intensity of described ultraviolet irradiation is 70μw / cm 22. Adjust the pH value of the water body. The pH value of the water body containing estrogen is 5-7. Under the condition of ultrasonic treatment, the frequency of the ultrasonic wave is 70kHz, and the power is 650W. Add laccase and horseradish peroxidase in the water body, described laccase and horseradish peroxidase are immobilized on the immobilized carrier, and described immobilized carrier is nitrocellulose, and the concentration of described laccase is 0.5 -1U / ml, the concentration of the horseradish peroxidase is more than 3U / ml, react, the time of the reaction is 0.2-1 hour, after the reaction, stir the water body containing estrogen, the stirring speed is 800rpm / min, filtered to obtain purified water.

[...

Embodiment 3

[0043] The method for removing estrogen in the water body of the present invention comprises the following steps, 1. The water body containing the mixture of estriol and estrol is subjected to ultraviolet irradiation treatment, and the radiation intensity of the ultraviolet irradiation is 100 μw / cm 2 2. Adjust the pH value of the water body. The pH value of the water body containing estrogen is 5-7. Under the condition of ultrasonic treatment, the frequency of the ultrasonic wave is 50kHz, and the power is 700W. Add laccase and horseradish peroxidase in the water body, described laccase and horseradish peroxidase are immobilized on the immobilized carrier, and described immobilized carrier is nitrocellulose, and the concentration of described laccase is 0.5 -1U / ml, the concentration of the horseradish peroxidase is more than 3U / ml, react, the time of the reaction is 0.2-1 hour, after the reaction, stir the water body containing estrogen, the stirring speed is 1500rpm / min, fil...

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PUM

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Abstract

The invention belongs to the technical field of water purification and decontamination and particularly relates to a method for removing estrogen from a water body. The method comprises the following steps: 1, carrying out ultraviolet radiation treatment on the water body containing estrogen; and 2, under the condition of ultrasonic treatment, adding laccase and horse radish peroxidase into the treated water body containing estrogen, reacting and separating to obtain purified water, wherein in the treated water body, the content of estrogen is less than 0.005mg / L which is far lower than the emission standard regulated by the government. The purified water can be directly discharged to the municipal pipe network, thereby greatly lowering the damage to human bodies or animals and plants. According to the method provided by the invention, by activating estrogen in the water body by virtue of ultraviolet radiation and carrying out polymerization on estrogen by using laccase and horse radish peroxidase, estrogen in the water body is converted into a copolymer, so that macromolecular substances are more quickly and conveniently discharged from the water body.

Description

technical field [0001] The invention belongs to the technical field of water purification and decontamination, and in particular relates to a method for removing estrogen in water. Background technique [0002] Endocrine disruptors have attracted more attention because they interfere with the normal working mode of the endocrine system. Steroid estrogens have been identified as endocrine disruptors, and the investigation and research surrounding this type of substances have received high attention and attention. Feminized substances in the effluent of sewage treatment plants above the interference threshold are the main causes of feminization of some aquatic organisms in rivers. Estrone, estradiol, ethinyl estradione, estriol and alkylphenols The main substances with female vitality, among which E1, E2 and EE2 are the three feminized substances with the most potential impact on ecology at present. Therefore, estrogen is the object that needs to be removed in sewage discharge...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/14
CPCC02F9/00C02F1/32C02F1/36C02F3/342C02F2101/34C02F2301/08
Inventor 杨钟华
Owner RUIAN PULUO BIOTECH