Has anyone used the electrochemical treatment process for circulating water?

China Haicheng Engineering Company (formerly the Shanghai Light Industry Research Institute under the Ministry of Light Industry) possesses this technology. It involves placing several cages filled with low-voltage electricity in the recirculation tank; the electric field is used to capture calcium and magnesium salts, causing them to deposit on the surface of the cage’s metal plates. This prevents the accumulation of calcium and magnesium ions, thereby significantly reducing the amount of concentrated wastewater discharged and achieving water savings. The results are good after application. Years ago, this technology wasn’t very convenient for regularly removing the scale that accumulated on the surface of the metal plates in the retrieved cages; it was necessary to place them in a special scaling tank and manually knock off the scale ； It is said that it has been improved since then.

This post was last edited by qugd on 2022-9-15 at 11:07. Personally, I feel that this technology isn’t very reliable. The most reliable method for removing water’s hardness ions through electrochemical means is electrodialysis; this process takes advantage of the ion-selective permeability of ion exchange membranes, and under an appropriate electric field, it allows calcium and magnesium ions to move from the water to the concentrated solution side, thereby reducing the concentration of these ions on the other side. The so-called “cage” concept in this method—it’s unclear what specific device or apparatus this refers to. If it’s an electrodialysis unit, then it can still be said to conform to the basic principles of water treatment. However, if it represents some vague and esoteric concept or principle, then it’s basically just a scam. For the conventional circulating water treatment in large chemical enterprises, the standard approach nowadays is to discharge the concentrated water, replenish it with fresh water, add appropriate water treatment chemicals, and simultaneously monitor the water quality. If other water treatment methods prove to be more effective, they will surely be adopted by large chemical enterprises, especially those in the petrochemical and coal chemical industries, as well as metallurgical plants and some power plants. Given that these enterprises deal with large volumes of water and have complex and variable water quality conditions, any method that is both efficient and cost-effective would certainly attract their attention. But the reality is anything but that.

To determine whether it’s reliable or not, you need to look at the actual performance. The electrochemical equipment itself is non-standard; we are the manufacturer. Our track record includes standalone systems capable of handling circulation volumes ranging from several hundred to one hundred thousand cubic meters. Fully automatic operation – no ads, just results{:9022:}

Hello, is your company currently using electrochemistry for its circulating water system? Our company is AgSai Electrochemistry from Israel, a globally leading original manufacturer. At high concentration levels (about twice the concentration of the chemical used, depending on the quality of the water added), it is possible to keep the calcium hardness in the circulating water below 600 mg/L without the need for corrosion inhibitors, scale inhibitors, or disinfectants; meanwhile, keeping the alkalinity below 250 mg/L ensures safety.

It works okay; the desalination level is quite significant, and it’s possible to control the hardness of the circulating water