Hypochlorite Production
Swimming Pools
Anodeum manufactures electrodes for swimming pool disinfection, made from Ruthenium-Titanium coated MMO, designed to withstand typical conditions such as low salt concentrations (3 to 5 grams per liter) and polarity reversal times of 2 to 4 hours. The polarity reversal helps remove calcareous deposits that form on the electrode surface during the cathodic period, which dissolve during the anodic period. This process, managed by a simple electronic device, offers significant benefits over acid rinsing, especially for small systems.
Brine
In disinfection applications, a brine solution consists of high-purity sodium chloride dissolved in softened water, free from unwanted ions like Ca²⁺ and Mg²⁺. When used in a brine cell or electrochlorinator, this solution produces highly concentrated hypochlorite, which is effective for disinfecting water. Anodeum supplies Ruthenium-Titanium MMO coated titanium anodes for these chlorinators, designed to produce chlorine gas that directly reacts to form hypochlorite, ensuring long-term performance at high current densities.
Electro Chlorination
Electrochlorination refers to the generation of chlorine gas in a chloride-containing solution through an electric current. The chlorine gas forms on the anode surface and reacts to produce hypochlorite, depending on the pH. The anodes are typically made of Ruthenium-Titanium MMO coated titanium, available in various shapes and configurations. Anodeum manufactures all types of these anodes, including fully coated anodes, monopoles, uncoated titanium cathode plates, and half-coated bipolar plates.
The formation of calcareous deposits due to Ca²⁺ and Mg²⁺ ions in the water can block the system over time. This issue can be addressed through regular acid flushing or frequent polarity reversal to maintain the system's efficiency.
Hypochlorite Production
An efficient method for producing hypochlorite involves passing an electric current through a chloride-containing solution, where chlorine gas forms at the anode and reacts to produce hypochlorite. This process is widely used for applications such as swimming pool disinfection, producing concentrated hypochlorite solutions from brine, electrochlorination of seawater to prevent biofouling in cooling water systems, and treating ballast water on ships to prevent the spread of invasive microorganisms.
In electrochlorination systems, precautions are necessary to prevent calcareous deposits from forming on the cathode due to Ca²⁺ and Mg²⁺ ions in the water. Common practices include using pure water and salt, regular acid rinsing, or employing polarity reversal in swimming pool applications to maintain efficient operation and prevent surface blockage.
