Acetonitrile wastewater advanced treatment process and monolithic catalyst

By using alumina integral catalyst prepared by transition metal-doped aluminum sol in the acetonitrile wastewater treatment, combined with high temperature Fenton oxidation technology, the problems of low efficiency, high cost and secondary pollution in the existing technology are solved, and efficient and environmentally friendly deep treatment effect is achieved.

CN119638047AActive Publication Date: 2025-03-18DALIAN INSTITUTE OF CHEMICAL PHYSICS CHINESE ACADEMY OF SCIENCES
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Patent Information

Application Number
CN202510172957.2
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-02-17
Publication Date
2025-03-18
Estimated Expiration
2045-02-17

AI Technical Summary

Technical Problem

The prior art is inefficient, cost-effective and prone to secondary pollution when treating high-concentration acetonitrile waste liquid, and the normal temperature heterogeneous Fenton still has limitations in terms of treatment efficiency.

Method used

The alumina integral catalyst is prepared by using transition metal doped aluminum sol, combined with high-temperature Fenton oxidation technology, which significantly improves the treatment efficiency of acetonitrile wastewater and reduces energy consumption and secondary pollution risks.

Benefits of technology

In-depth treatment of acetonitrile wastewater was achieved, the acetonitrile concentration was reduced to within 0.5 mg/L, and the TOC was reduced to within 100 mg/L, reaching the emission standard, and the catalyst was easy to recycle and reuse.

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Abstract

The invention discloses an acetonitrile wastewater advanced treatment process and a monolithic catalyst, and belongs to the technical field of wastewater treatment technologies and environmental functional materials. The alumina monolithic catalyst is prepared by using a transition metal doped alumina sol one-step method, and is used for treating acetonitrile wastewater through high-temperature Fenton oxidation. According to the process, the high activity of the transition metal doped aluminum sol monolithic catalyst and the strong oxidation capacity of high-temperature Fenton oxidation are combined, the problem that the acetonitrile wastewater is difficult to degrade is effectively solved, the acetonitrile wastewater can be discharged after reaching the standard after being treated, and the process has the advantages of being high in treatment efficiency, low in energy consumption, free of secondary pollution and the like.
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