Oscillating Electrode for Decomposing Insoluble Organic Liquids
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Solution Overview
Problem
Existing methods for decomposing insoluble or semi-soluble organic liquids in aqueous media face challenges such as limited applicability to water-insoluble compounds, requirement of heat or redox systems, and electrode surface blocking issues during electrochemical oxidation processes.
Innovation Solution
A method involving the emulsification of organic liquids in an electrically conducting aqueous medium followed by electrochemical decomposition on an oscillating electrode at ultrasonic frequencies, utilizing cavitation to facilitate oxidative decomposition into CO2 and H2O, with diamond electrodes resistant to cavitation damage, and no need for a separate redox couple.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If electrochemical oxidation is used to decompose organic materials, then oxidation of organic waste occurs, but electrode surfaces become blocked by deposits
Solution Approach 1:
The patent applies ultrasonic vibration to the electrode surface to prevent deposit buildup and maintain electrode performance. The ultrasonic oscillation creates mechanical vibrations that continuously disrupt the formation and accumulation of deposits on the electrode surface, allowing the electrochemical oxidation process to continue efficiently without performance degradation.
2Adaptability or versatility
If conventional electrochemical oxidation is used, then water-soluble compounds can be decomposed, but water-insoluble compounds cannot be effectively treated
Solution Approach 1:
The patent applies ultrasonic treatment as a preliminary action to emulsify water-insoluble organic compounds before electrochemical oxidation. The ultrasonic vibration breaks down the insoluble organic materials into finer emulsified droplets, increasing their surface area and making them accessible to the electrochemical oxidation process, thereby enabling effective treatment of both soluble and insoluble organics.
3Productivity
If heat treatment is applied to decompose insoluble organic waste, then decomposition occurs, but high temperature and long time are required
Solution Approach 1:
The patent replaces thermal heat treatment with ultrasonic mechanical vibration and electrochemical oxidation. Instead of using high temperature to decompose insoluble organics, the system uses ultrasonic mechanical energy to emulsify the organics and electrochemical oxidation to decompose them at room temperature, significantly reducing the energy input requirements while maintaining high decomposition rates.
4Productivity
If redox system is added to electrolyte for electrochemical oxidation, then oxidation process is enhanced, but system complexity increases
Solution Approach 1:
The patent extracts and eliminates the need for additional redox couples from the electrolyte system. By using ultrasonic emulsification to prepare the organic waste and applying direct electrochemical oxidation, the system achieves effective decomposition without requiring external redox mediators, thereby simplifying the overall system while maintaining high oxidation efficiency.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This method efficiently decomposes insoluble organic liquids at room temperature, reducing electrode deposit buildup and allowing for simple process control, suitable for decomposing hazardous materials without the need for additional redox systems or heat, and enabling long-term unattended operation.
Implementation Method 1
the electrode is oscillating at a frequency of at least 5 KHz, preferably at least 15 KHz, more preferably at least 20 KHz
Implementation Method 2
utilizing cavitation to facilitate oxidative decomposition
Implementation Method 3
electrochemically decomposing the emulsified organic liquid on a surface of an oscillating electrode in an electrochemical cell
Implementation Method 4
an electrochemical reaction generates oxidising species in the media, such as atomic oxygen and hydroxyl radicals, which are able to subsequently oxidise the organic waste species
Implementation Method 5
The oxidised form of said couple(s) are produced by oxidation at the anode. The oxidised species of said redox couple(s) oxidise the organic waste matter, themselves being converted to their reduced form
Data Source
AI summary
A method of decomposing an organic liquid, having a solubility in water of 0 or less than 50g/l at 25°C, comprising: a) emulsifying an amount of the organic liquid in an amount of an aqueous medium to form an emulsion of the organic liquid in the aqueous medium; and b) electrochemically decomposing the emulsified organic liquid on a surface of an oscillating electrode in an electrochemical cell, wherein the electrode is oscillating at a frequency of at least 5 KHz.