Sequential reactor for adsorption of pollutants onto activated carbon and electrochemical regeneration of the activated carbon

CN115916707BActive Publication Date: 2025-08-29NATIONAL UNIVERSITY OF SINGAPORE
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Patent Information

Application Number
CN202180029626.3
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Priority Date
2020-02-20
Filing Date
2021-02-22
Publication Date
2025-08-29
Estimated Expiration
2041-02-22

AI Technical Summary

Technical Problem

The prior art is difficult to achieve continuous adsorption and electrochemical regeneration of activated carbon in industrial wastewater treatment, which has high energy requirements, high costs, limited regeneration cycles and potential threats to the environment. Most methods are carried out in separate containers, limiting industrial applications.

Method used

A reactor including a cathode, anode and a separator is designed, the cathode has a fixed bed compartment, a carbon brush and activated carbon, and the compartments are arranged in parallel for continuous flowing wastewater treatment, electrochemical regeneration in combination with an electrofenton method, and the oxidation efficiency is improved by using a boron-doped diamond anode.

Benefits of technology

The continuous adsorption and electrochemical regeneration of activated carbon are achieved, the wastewater treatment efficiency is improved, energy consumption and cost are reduced, and environmental risks are reduced, and are suitable for industrial-scale continuous flow systems.

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Abstract

This article discloses a wastewater treatment reactor using activated carbon as an adsorbent. The wastewater treatment reactor is suitable for use in electrochemical advanced oxidation processes and includes a cathode and an anode, wherein the cathode is configured to include activated carbon and a carbon brush. Also disclosed are methods for adsorbing pollutants using the reactor and for regenerating the reactor.
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Citation Information

Patent Citations

  • Three-phase activated carbon fluidized bed electrochemical treatment installation and method for organic wastewater

    CN1654340A

  • Air pollutants removal apparatus using electro-activated catalyst oxidation process, and operation method thereof

    KR1020140115495A