Method for ozonizing organic matters in wastewater by using activated carbon structured catalyst

A technology of structured catalyst and activated carbon, applied in physical/chemical process catalysts, chemical instruments and methods, metal/metal oxide/metal hydroxide catalysts, etc. Problems such as large pressure drop in the bed
CN112403457APending Publication Date: 2021-02-26BEIJING UNIV OF CHEM TECH
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Patent Information

Authority / Receiving Office
CN Β· China
Current Assignee / Owner
BEIJING UNIV OF CHEM TECH
Publication Date
2021-02-26

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Abstract

The invention discloses a method for ozonizing organic matters in wastewater by using an activated carbon structured catalyst, and belongs to the technical field of sewage purification. The catalyst is composed of a carrier, an active component and an auxiliary agent, the carrier is honeycomb activated carbon, the active component is one or more of Mn, Fe, Co, Ni, Cu, Zn, Y and Zr, and the auxiliary agent is one or more of La and Ce. The preparation method comprises the following steps: (1) washing and drying the carrier; (2) preparing an impregnation liquid containing the active component andthe auxiliary agent; (3) placing the carrier in the impregnation liquid for impregnation to obtain a catalyst precursor; and (4) washing, drying and calcining the catalyst precursor to obtain the activated carbon structured catalyst. The catalyst is applied to treatment of organic wastewater, has the characteristics of small bed pressure drop, uniform gas distribution, small internal diffusion resistance, high COD removal rate and the like, and has a good application prospect.
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Description

technical field

[0001] The invention relates to the field of wastewater treatment and catalysts, and mainly relates to a method for using an activated carbon structured catalyst to ozonate organic matter in wastewater, belonging to the technical field of sewage purification.

[0002] technical background

[0003] In the process of social development, a large amount of wastewater will inevitably be produced, and some wastewater will be discharged into surrounding rivers and underground without treatment, causing serious pollution to water bodies. The types and contents of organic matter in different types of wastewater are different. Compared with other pollutants, the treatment process of organic matter in wastewater is more difficult and complicated. At present, the commonly used wastewater organic matter treatment methods include biological and chemical methods. The biological method can use organisms to degrade the organic matter in the wastewater into small molecular sub...

Claims

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