A method for starting and debugging an oscillation type electric adsorption based wastewater treatment system
By injecting a microampere-level broadband AC excitation current signal and impedance imaginary part feedback into the electroadsorption system, combined with a piezoelectric ceramic pulsating water pump and digital phase-locked loop control, the problem of electrolyte penetration into the microporous structure of porous carbon electrodes was solved, achieving efficient wetting and stable operation of the system.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- HUANENG (DALIAN) THERMAL POWER CO LTD
- Filing Date
- 2026-04-27
- Publication Date
- 2026-07-17
AI Technical Summary
In the initial startup and commissioning phases, existing electroadsorption systems face resistance during the penetration process of the electrolyte into the microporous structure of the porous carbon electrode, resulting in the formation of unwetted dead zones, which affects adsorption efficiency and system stability. Furthermore, they lack precise monitoring of the physical state of the micro-interface and coordinated control of macro-fluid-driven processes.
A wastewater treatment system based on oscillating electroadsorption is adopted. By injecting a microampere-level broadband AC excitation current signal, combined with in-situ microcurrent broadband impedance detection and impedance imaginary part feedback, and using a piezoelectric ceramic pulsed water pump and digital phase-locked loop control, the physical wetting state of the porous carbon electrode micropore network is quantitatively monitored and precisely controlled. With the help of high-frequency asymmetric commutation pulse voltage and acoustic cleaning, the mechanical balance of the air blockage inside the micropores is broken, ensuring the deep penetration of wastewater electrolyte.
It enables precise monitoring and control of the physical wetting state of the microporous network of porous electrodes, ensuring that the system operates under optimal wetting conditions, improving initial desalination efficiency and system stability, and avoiding the problem of excessively rapid local polarization of the electrodes.
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Figure CN122403589A_ABST