A layperson’s question: How reliable is the electrochemical oxidation method?

No external electricity is required; a chemical potential is formed within the solution

I have heard of some electrochemical treatment techniques; could someone knowledgeable explain these techniques?

In fact, all one needs to do is pay attention to the facts: how many companies are currently using electrochemical methods for wastewater treatment? How many companies use chemical treatment methods for wastewater recycling? Just take a look at this result to get an idea. When it comes to circulating water treatment, one should not focus only on the treatment costs; rather, attention should be paid to the actual treatment effectiveness as well as the reliability and feasibility of the measures taken to address changes in the quality of the circulating water.

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Summary of the seven major issues related to TPFC iron-carbon fillers and micro-electrolysis fillers: 1. What is micro-electrolysis? Micro-electrolysis is a wastewater treatment process that utilizes the weak electric current generated spontaneously by iron and carbon elements to break down pollutants in wastewater. When closely packed iron and carbon are immersed in an wastewater solution, a weak internal molecular current is automatically generated between the iron atoms and carbon atoms. The reaction in which this weak current breaks down the pollutants in the wastewater is known as microelectrolysis. 2. Principle of micro-electrolysis: When the filler is immersed in an electrolyte solution, an electrode potential difference of 1.2V exists between Fe and C, which leads to the formation of numerous micro-battery systems. These systems create an electric field in their surrounding area; the anodic reactions result in the generation of large amounts of Fe2+ ions that enter the wastewater, where they are further oxidized to Fe3+, thereby forming flocculants with high adsorption and flocculation capabilities. The cathodic reaction generates a large amount of free radicals. Under slightly acidic conditions, these reactive species can undergo redox reactions with many components in the wastewater, causing the breakdown and degradation of organic macromolecules. This eliminates the coloration in organic substances, especially in printing and dyeing wastewater, and improves the biodegradability of the wastewater. The working principle relies on the combined action of electrochemistry, oxidation-reduction, physical adsorption, and flocculation sedimentation to treat wastewater. 3. Advantages: Wide range of applications, good treatment efficiency, low cost, easy operation and maintenance, no need for electrical power, fast reaction speed, stable treatment results, no secondary pollution, improvement in the biodegradability of wastewater, capability to remove phosphorus through chemical precipitation, removal of heavy metals via reduction, and can also be used as a pretreatment step for biological treatment, facilitating sludge sedimentation and biofilm formation. 4. Where does the carbon go after treatment? In the filler, carbon does not exist in the form of large particles, but rather as very fine particles. As iron is consumed during the reaction, carbon is also continuously released. These fine carbon particles, carrying pollutants with them, enter the sedimentation tank where they settle through flocculation. 5. Why there is no need to replace the filler: Iron and carbon are consumed simultaneously, and the ratio of iron to carbon in the filler never changes; therefore, the consumption of the filler involves only a change in quantity, not a change in quality. So as the filler is used up, it is only necessary to add new filler. 6. Strength issue: High-temperature sintering at over 1050 degrees enables the physical strength of the new iron-carbon microelectrolysis filler to reach 1000 Kg/CM2, sufficient to withstand a pressure of 20 meters of water column. Therefore, it is safe and reliable when filled in the micro-electrolysis tower. 7. Why no caking: The caking problem with traditional fillers occurs because the iron particles are not evenly dispersed by carbon particles, allowing the iron particles to rust and stick together. The new type of micro-electrolysis filler is produced through a special high-temperature sintering process, which results in the iron and carbon in this filler existing in the form of an iron-carbon inclusion structure. The iron framework intersects with the carbon chains, and this interconnection ensures that the iron particles are evenly dispersed by the carbon particles, thus preventing caking

I am working on electrochemical cyclic water treatment, involving scale removal, rust elimination, corrosion prevention, sterilization, and algae control, as well as skill-based emission reduction

Is it a bit biased to reject it based on the current number of chemical and electrochemical treatment systems? ? ? In the early stages of large-scale adoption of new technologies, there are certainly fewer traditional solutions available, don’t you think? Admittedly, we need to distinguish between primary and secondary priorities; addressing the issue of system scaling to ensure its healthy and stable operation is the key, while investment recovery and operating costs come as secondary considerations. For information on the performance of our electrochemical equipment, please refer to the application case from a chemical company in Heilongjiang shared on this forum. Feel free to contact us at dj122972@163.com