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Preparation method of manganese oxide molecular sieve composite filter material for treating diclofenac in water

A technology of composite filter material and diclofenac, which is applied in chemical instruments and methods, alkali metal compounds, water/sewage treatment, etc., can solve the problems of poor removal effect and high efficiency, and achieve high-efficiency purification of water quality. The preparation method is simple and effective. The effect of removing the effect

Inactive Publication Date: 2022-03-04
兰溪市钱江水务有限公司
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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 overcome the deficiency of the above-mentioned background technology, aiming at the problem that the removal effect of pharmaceutical pollutants such as diclofenac in slightly polluted raw water is not good in the current conventional water treatment process, and to provide a manganese oxide molecular sieve composite filter material for treating diclofenac in water Compared with the traditional filter material, the composite filter material prepared by the present invention can treat pharmaceutical pollutants such as diclofenac in the water body through adsorption and catalytic degradation at the same time. The time required for biofilm formation in the filter material

Method used

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  • Preparation method of manganese oxide molecular sieve composite filter material for treating diclofenac in water

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Embodiment 1

[0031] A kind of preparation method of manganese oxide molecular sieve composite filter material for treating diclofenac in water, is characterized in that, carries out as follows:

[0032] (1) Synthesis of manganese oxide molecular sieve, mix potassium permanganate and manganese acetate according to the molar ratio of 2:3 and grind them evenly in a mortar, pour the resulting mixed powder into a capped glass bottle, and place it at 80°C After 4 hours under ambient conditions, the obtained black product was washed 3 times with deionized water and suction-filtered, and finally the obtained material was dried at 80° C. for 12 hours to obtain a manganese oxide molecular sieve.

[0033] (2) Synthesis of amino-modified manganese oxide molecular sieve composite filter material, 1.5g manganese oxide molecular sieve was added into 300mL volume concentration of 50% ethanol aqueous solution, ultrasonic at room temperature for 0.5 hours, 35mL ammonia water was added, and stirred at 60°C fo...

Embodiment 2

[0035] A kind of preparation method of manganese oxide molecular sieve composite filter material for treating diclofenac in water, is characterized in that, carries out as follows:

[0036] (1) For the synthesis of manganese oxide molecular sieve, mix potassium permanganate and manganese acetate according to the molar ratio of 2.5:3 and grind them evenly in a mortar, pour the resulting mixed powder into a capped glass bottle, and place it at 85°C After 5 hours under ambient conditions, the obtained black product was washed 5 times with deionized water and suction-filtered, and finally the obtained material was dried at 85° C. for 12 hours to obtain a manganese oxide molecular sieve.

[0037] (2) Synthesis of amino-modified manganese oxide molecular sieve composite filter material, add 1.5g manganese oxide molecular sieve to 300mL volume concentration of 55% ethanol aqueous solution, ultrasonic at room temperature for 0.5 hour, add 35mL ammonia water, stir at 60°C for 24 hours (...

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Abstract

The invention belongs to the technical field of water treatment, and discloses a preparation method of a manganese oxide molecular sieve composite filter material for treating diclofenac in water. The method comprises the following steps: (1) mixing potassium permanganate and manganese acetate, uniformly grinding, pouring the obtained mixed powder into a closed container, cleaning the obtained black product, carrying out suction filtration, and drying the obtained product to obtain a manganese oxide molecular sieve; and (2) adding the manganese oxide molecular sieve into an ethanol aqueous solution, carrying out ultrasonic treatment, adding ammonia water, stirring, cleaning, carrying out suction filtration, adding a product into the ethanol aqueous solution, carrying out ultrasonic treatment, adding 3-aminopropyltriethoxysilane, stirring, cleaning the product, carrying out suction filtration, and carrying out vacuum freeze drying to obtain the amino-modified manganese oxide molecular sieve composite filter material. The prepared composite filter material can treat drug pollutants such as diclofenac in a water body in adsorption and catalytic degradation modes at the same time, is ready to use after being put, is high in efficiency, and greatly saves the time required by biofilm formation in a traditional filter material.

Description

technical field [0001] The invention relates to the technical field of water treatment, in particular to a preparation method of a manganese oxide molecular sieve composite filter material for treating diclofenac in water. Background technique [0002] The production and use of drugs are increasing year by year. However, the removal efficiency of drugs and their metabolic molecules in sewage plants is limited, and the pollution of drug pollutants in natural water is becoming more and more serious. Diclofenac is a representative anti-inflammatory drug with strong environmental toxicity and high concentration in the effluent of sewage treatment plants. The detected concentration in natural water bodies has reached the level of μg / L, but the current conventional drinking water treatment technology is not effective Remove diclofenac. [0003] Manganese oxide molecular sieves have been proven to have adsorption properties and can be used to remove certain pollutants. For example...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J20/30B01J20/28C02F1/28C02F1/72C02F101/34C02F101/36C02F103/34
CPCB01J20/3085B01J20/3021B01J20/3071B01J20/28095B01J20/28057C02F1/288C02F1/725C02F2101/345C02F2101/36C02F2103/343
Inventor 陈如勇徐华明王益军史俊
Owner 兰溪市钱江水务有限公司
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