Electrodesan

Electrodesan is a term used to describe electrochemical disinfection systems that generate sanitizing oxidants at electrodes to inactivate microorganisms in liquids or on surfaces.

The technology operates by electrolyzing an electrolyte; at the anode, oxidants such as hypochlorous acid (via chlorine species) or hydroxyl radicals are produced, while the cathode supports reductive reactions. The result is in-situ disinfection without adding bulk chemical sanitizers.

Typical designs include two-electrode flow-through cells, electrochemical baths for surfaces, and coated-electrode configurations. Materials commonly used are titanium with mixed-metal-oxide coatings, boron-doped diamond, and carbon-based electrodes.

Applications span drinking water and process water disinfection, food and beverage sanitation, horticultural irrigation systems, and surface sterilization for medical devices, laboratory equipment, and consumer appliances such as dishwashers.

Advantages include on-site generation, reduced handling of chemical sanitizers, rapid activity, and broad-spectrum effectiveness. The technology can be integrated into existing water-treatment lines or cleaning workflows.

Limitations and safety considerations involve disinfection-byproduct formation (especially if chloride is present), electrode degradation, energy requirements, and maintenance needs. Effectiveness depends on water chemistry, flow rates, and contact time.

Regulatory status varies by jurisdiction. In water applications, devices may require certification or compliance marks; in medical contexts they may require health-hazard assessments and clearance similar to other disinfection equipment.

History and development in electrochemical disinfection date to the early 20th century with advances in electrode materials and electrochemical reactors; modern implementations emphasize efficiency, sustainability, and safety in municipal, industrial, and consumer environments.