Mixed oxidant

[1] An MOS may have advantages such as a higher disinfecting power, stable residual chlorine in water, elimination of biofilm, and safety.

[2] The main components of an MOS are chlorine and its derivatives (ClO− and HClO), which are produced by electrolysis of sodium chloride.

[3] It may also contain high amounts of hydroxy radicals, chlorine dioxide, dissolved ozone, hydrogen peroxide and oxygen from which the name "mixed oxidant" is derived.

In this way, different reactions occur at the anode and cathode poles, and therefore, various oxidizing substances are produced.

Hydrogen peroxide and ozone are produced by different half reactions, but each of them may occur in practice.

[7] The basis of the mixed oxidant production cell is electrolysis of a water solution of sodium chloride.

Fixed titanium electrodes, which are resistant to corrosion at the anode, are suitable for this kind of electrolysis cell.

The disinfecting effect of applying mixed oxidant is more efficacious and has fewer safety concerns than other methods, such as chlorination and ozonation.

[15] In the next table, the effectiveness of mixed oxidant and bleach in terms of deactivating bacteria and viruses has been compared.

[16] Bacillus anthracis (Sterne) spores Time, concentration, efficacy A mixed oxidant production cell generally works regardless of a membrane.

Moreover, in a membrane cell, other powerful oxidants such as ozone, chlorine dioxide and hydrogen peroxide can be produced, which are effective for killing bacteria and omitting[clarification needed] biofilms in water distribution systems and containers.

[14] Mixed oxidant solutions for water treatment may improve safety, lower general corrosion rates, increase performance, and save money.

Cooling water treatment: An MOS for industrial cooling water treatment and disinfection improves safety and thermal efficiency, lowers general corrosion rates, increases performance, and saves money, resulting in a reduction of downtime, maintenance, and expense.

Additionally, it can improve workplace safety by eliminating the handling and storage of hazardous chemicals while maintaining steady microbiological control.

[17] Cooling tower water treatment: An MOS improves cooling tower efficiency, safety, and cost compared to conventional biocide treatment methods for legionella prevention, biofilm removal, and inactivation of other performance-inhibiting waterborne organisms.

[19] Municipal wastewater: As one of the world's most precious natural resources, the reuse of water is becoming increasingly important.

For providing clean, safe drinking water ranges from rural communities to large cities.

An MOS can also reduce maintenance time and costs compared to chlorine as the need for "shocking" and draining the pool is minimized or unnecessary.