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Preparation method of catalyst for catalyzing sulfachloropyridazine sodium in ozonized water

A technology of sulfachloropyridazine sodium and a catalyst, which is applied in the field of catalytic ozonation of wastewater containing sulfachloropyridazine sodium, can solve the problems of low catalytic efficiency and low utilization rate, and achieve high catalytic activity, good stability, and expanded dispersion Effect

Pending Publication Date: 2022-05-06
陶雨
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a kind of preparation method of supported metal catalyst for the deficiencies in the prior art, and the catalyst is used for catalytic ozonation of waste water containing sulfachloropyridazine sodium, so as to solve the problem of low catalytic efficiency and low utilization rate of the current technology. defect

Method used

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  • Preparation method of catalyst for catalyzing sulfachloropyridazine sodium in ozonized water
  • Preparation method of catalyst for catalyzing sulfachloropyridazine sodium in ozonized water
  • Preparation method of catalyst for catalyzing sulfachloropyridazine sodium in ozonized water

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Effect test

Embodiment 1

[0039] Activation treatment of the carrier: first wash with distilled water until neutral, and then put it into a vacuum drying oven and dry at 120° C. for 2 hours. Finally, it was calcined at 200 °C for 2 h in a muffle furnace.

[0040] Preparation of catalyst: prepare Ce-Fe / AC supported metal catalyst by co-precipitation method, take 4.34g Ce(NO 3 ) 3 ·6H 2 O was put into five beakers with 100mL of distilled water, and after the dissolution was complete, add 0.278g, 0.417g, 0.556g, 0.834g, 0.973g, 1.390g FeSO 4 •7H 2 O, configured as a solution with a molar ratio of primary and secondary metals of 1:0.1, 1:0.15, 1:0.2, 1:0.3, 1:0.35, 1:0.5, completely dissolved with a magnetic stirrer, and 10g of activated The carrier was added to 100 mL of metal ion solutions of different concentrations, stirred at 25°C for 4 hours and then left to stand for 2 hours, so that the metal ions were evenly loaded inside the carrier. Then, a certain concentration of NaOH solution was added, ...

Embodiment 2

[0044] Activation treatment of the carrier: first wash with distilled water until neutral, and then put it into a vacuum drying oven and dry at 120° C. for 2 hours. Finally, it was calcined at 200 °C for 2 h in a muffle furnace.

[0045] Catalyst preparation: Ce-Fe-Zn / AC supported metal catalyst was prepared by co-precipitation method, and 4.34g Ce(NO 3 ) 3 ·6H 2 O, 0.556g FeSO 4 •7H 2 O was added to five beakers filled with 100mL of distilled water, and 0.029g, 0.058g, 0.087g, 0.145g, and 0.203g of ZnSO were added after the dissolution was complete. 4 •7H 2 O, configured into three kinds of solutions with metal molar ratios of 1:0.3:0.001, 1:0.3:0.002, 1:0.3:0.003, 1:0.3:0.005, 1:0.3:0.007, using a magnetic stirrer to make it completely dissolve. 10 g of the activated carrier was added to 100 mL of metal ion solutions of different concentrations, stirred at 25° C. for 4 h and then allowed to stand for 2 h, so that the metal ions were evenly loaded inside the carrier. ...

Embodiment 3

[0049] Activation treatment of the carrier: first wash with distilled water until neutral, and then put it into a vacuum drying oven and dry at 120° C. for 2 hours. Finally, it was calcined at 200 °C for 2 h in a muffle furnace.

[0050] The preparation of catalyst: take by weighing 4.34gCe(NO 3 ) 3 ·6H 2 O, 0.556g FeSO 4 •7H 2 O was added to a beaker containing 100mL of distilled water, and after the dissolution was complete, 0.058g of ZnSO was added 4 •7H 2 O, use a magnetic stirrer to dissolve it completely. 10 g of the activated carrier was added to 100 mL of metal ion solutions of different concentrations, stirred at 25° C. for 4 h and then allowed to stand for 2 h, so that the metal ions were evenly loaded inside the carrier. Then, a certain concentration of NaOH solution was added, stirred continuously for 4 hours at 25° C., and then stood still for 24 hours to completely precipitate the loaded metal ions. Wash the filtered catalyst with distilled water until th...

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Abstract

The invention discloses a catalyst for catalytic ozonation degradation of sulfachlorpyridazine sodium wastewater and a preparation method and application thereof, activated carbon is used as a carrier, a supported metal oxide catalyst Ce-Fe-Zn / AC is prepared through a chemical coprecipitation method, Ce, Fe and Zn are proportioned according to a certain molar ratio, the activated carbon carrier is washed, dried and then subjected to high-temperature calcination, and the sulfachlorpyridazine sodium wastewater is obtained. And adding the obtained carrier into different metal ions, stirring, standing, precipitating and calcining to obtain the required catalyst. The catalyst is high in catalytic activity, nontoxic and pollution-free in the production process, convenient to separate and reusable, and has a good application prospect.

Description

technical field [0001] The invention belongs to the field of sewage treatment, and relates to the preparation of Ce-Fe-Zn / AC catalyst and a method for catalytic ozonation of waste water containing sulfachloropyridazine sodium. Background technique [0002] As a sulfonamide antibacterial drug, sulfachloropyridazine sodium has stable properties and plays a significant role in the treatment of Escherichia coli and Pasteurella infection in livestock and poultry. Sulfachloropyridazine sodium is easily soluble in water, and can be directly put into the drinking water of livestock and poultry during the treatment of livestock and poultry. However, there are a lot of residues in the process of sewage discharge, which is easy to pose a threat to the water environment. The free amino group at the para-position of the chemical formula of sulfonamide is an antibacterial active group, which can indirectly inhibit the growth of microorganisms in wastewater. Among all the drugs that have...

Claims

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Application Information

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IPC IPC(8): B01J23/83B01J35/10C02F1/78C02F101/38
CPCB01J23/83C02F1/78C02F2101/40B01J35/61
Inventor 黄强陶雨李超杰班春兰
Owner 陶雨
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