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Method for preparing ozone catalyst for removal of antibiotics in water by using cheap material as carrier

A catalyst and water removal technology, which is applied in chemical instruments and methods, natural water treatment, oxidized water/sewage treatment, etc., can solve the problems of high production cost, emerging pollutants, difficulty in completely degrading antibiotics, complicated preparation process, etc., and achieve improvement The effect of antibiotic mineralization efficiency, ease of operation, and simple preparation process

Inactive Publication Date: 2018-08-17
DALIAN UNIV OF TECH
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Problems solved by technology

[0004] The present invention mainly aims at the problems of harsh preparation conditions, complex preparation process, high preparation cost and difficulty in complete degradation of emerging pollutant antibiotics of the current ozone catalyst, and establishes a method for preparing an ozone catalyst for removing antibiotics in water by using cheap materials as a carrier

Method used

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  • Method for preparing ozone catalyst for removal of antibiotics in water by using cheap material as carrier

Examples

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Embodiment 1

[0026] Example 1: Preparation of a catalyst supported by oyster shells.

[0027] (1) Put discarded oyster shells in a large beaker, scrub with a brush to remove sediment, seaweed and organic matter deposited on the surface, repeatedly soak and rinse with deionized water, and then dry them in an oven at 60°C for later use. Select a certain amount of treated oyster shells and crush them with a common crusher to obtain powdered oyster shell powder with uneven particle size but relatively small size for future use.

[0028] (2) Weigh a certain quality of oyster shell powder in a beaker, and use the prepared Fe(NO 3 ) 3 Soak in the dipping solution, and stir with a glass rod from time to time during the soaking process to improve the dipping efficiency. In the present invention, the immersion time is 24h.

[0029] (3) Rinse the soaked oyster shell powder repeatedly to remove the residual Fe(NO 3 ) 3 The solution was dried in an oven at 105°C for later use. The dried oyster sh...

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Abstract

The invention belongs to the technical fields of preparation of novel materials and wastewater treatment with an advanced oxidation technology, and relates to a method for preparing an ozone catalystfor removal of antibiotics in water by using a cheap material as a carrier. The method comprises the following steps: selecting a cheap material namely oyster shells as a catalyst carrier, impregnating oyster shell powder into an impregnating solution through a wet impregnation method, and after completion of impregnation, carrying out drying, calcining and screening so as to obtain a metallic oxide loaded ozone catalyst, wherein the metallic oxide loaded ozone catalyst is applied to a system of ozone catalytic oxidation and degradation of antibiotic wastewater, significantly improves the mineralization efficiency of the antibiotics, and shows good catalytic performance. The method provided by the invention has the advantages of simple process, convenient operation, cheap and easily-available oyster shell, safety and environmental protection, significantly reduces the cost of water treatment by ozone catalytic oxidation, and facilitates extensive application of an ozone catalytic oxidation technology.

Description

technical field [0001] The invention belongs to the technical field of preparation of new materials and advanced oxidation technology for wastewater treatment, and relates to a method for preparing an ozone catalyst for removing antibiotics in water by using cheap materials as carriers. Iron oxide, the catalyst is prepared by a wet impregnation method, and the catalyst is applied to a system for degrading antibiotic wastewater by ozone catalytic oxidation. Background technique [0002] In recent years, the scope and dosage of antibiotics have been increasing, seriously affecting the water environment and human health. How to choose an efficient water treatment technology to remove antibiotics in water has attracted widespread attention from researchers. Among many water treatment technologies, ozone catalytic oxidation is widely used because of its strong oxidation ability and high degradation efficiency. In the process of ozone catalytic oxidation, the preparation and sele...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J23/745C02F1/78C02F1/72C02F103/34
Inventor 张捍民魏雪
Owner DALIAN UNIV OF TECH
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