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Water Disinfectants and Oxidants

150 years ago, chlorine was the only option for treating drinking water.  Today, many more water disinfectants are available. This list includes ozone, hydrogen peroxide, chlorine dioxide, potassium monopersulfate (KMPS), and UV radiation. Each of these disinfectants has a different strength and are suitable for different applications. They are all effective at water disinfection and avoid some of the complications associated with chlorine.

Water disinfectants can also be used as oxidants. Oxidants remove unwanted components in water through oxidation. UV radiation, in particular, triggers oxidation by photolysis. 

The strongest known oxidant in water treatment, hydroxyl radicals, are formed during UV light dissociation of hydrogen peroxide.

More information about water disinfection

Chlorine Dioxide

Chlorine dioxide is an advanced disinfectant for water and wastewater treatment, as well as for disinfecting swimming pools. Unlike chlorine, chlorine dioxide does NOT produce carcinogenic compounds as a by-product of disinfection. For drinking water, chlorine dioxide is better than regular chlorine. Chlorine dioxide has a long-lasting effect through residual concentration – something that neither ozone nor UV can provide.

Our liquid sets for chlorine dioxide production consist of Hydrochloric Acid 9% and Sodium Chlorite 7.5%. Both components are ANSI60 certified for drinking water. You can purchase these liquid sets from the Osorno Online Store and directly from our company.


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Hydrochloric Acid 9% label

Sodium Chlorite 7.5% label

PowerOxide™ Disinfectant

The PowerOxide™ chlorine dioxide kit consists of two components used to produce chlorine dioxide. PowerOxide™ is often used when you cannot invest in a chlorine dioxide generator or when you only need to produce singular batches of chlorine dioxide. Both components are ANSI60 certified for drinking water. You can purchase PowerOxide™ disinfectant from the Osorno Online Store.

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PowerOxide™ Component A

PowerOxide™ Component B


KMPS, potassium monopersulfate, (the K comes from “kalium”, the Latin word for potassium) in its stable form is a triple salt and a highly active oxidant. You can use this chemical for a wide range of applications, such as disinfecting drinking water, disinfecting wastewater lagoons prior to discharge, disinfecting swimming pools, or sanitizing water reservoirs (dugouts) for small communities. You can use potassium monopersulfate with sodium or calcium hypochlorite. KMPS is ANSI60 certified for drinking water. You can purchase KMPS from the Osorno Online Store or directly from our company.

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Hydrogen Peroxide

Hydrogen peroxide (perhaps best known for its use as hair bleach) is a slow-acting, but strong disinfectant. The oxidation potential of hydrogen peroxide even exceeds that of potassium permanganate. It is best used to oxidize organic matter in raw water, enabling easy removal through flocculation. You can use hydrogen peroxide with chlorine dioxide (but not with chlorine or hypochlorite). You can purchase Hydrogen Peroxide from the Osorno Online Store in 4 L and 20 L containers.

Hydrogen Peroxide 12% Label


Sodium Hypochlorite (Liquid Chlorine, Bleach)

The disinfection compound in sodium hypochlorite is hypochlorous acid. This acid forms when chlorine gas dissolves in water.  You cannot isolate hypochlorous acid from sodium hypochlorite because it exists in equilibrium with its precursors. This equilibrium depends on numerous factors. The disinfection efficiency of sodium hypochlorite depends on the water's pH. An acceptable pH for efficient disinfection is 6.8 – 7.5. Hypochlorous acid reacts with organic compounds and forms THMs (trihalomethanes).

In addition, hypochlorous acid reacts with ammonia to form chloramines, which are a weak secondary disinfectant. There are many different types of chloramines. Monochloramines form in a pH range of 7.5 - 9.0. The most acceptable pH for water chloramination is 8.2 – 8.3. You can purchase Sodium Hypochlorite 12% from the Osorno Online Store.

Sodium Hypochlorite 12% Label

Sodium Bisulfite

Sodium bisulfite (also known as bisulfite bleach or sodium hydrogen sulfite) is a reducing disinfectant.  Sodium bisulfite reduces residual chlorine in chlorinated water. It also reduces residual concentrations of chlorine dioxide and hydrogen peroxide and it can prevent oxidative corrosion. You can purchase our 32% sodium bisulfite solution from the Osorno Online Store.

Sodium Bisulfite Label


Ozone (O3) is produced when oxygen (O2) is exposed to UV light. It is a powerful oxidant for treating water and air. Because ozone decays quickly, you cannot manufacture and transport ozone like other industrial gases.

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Osorno Enterprises Inc.
976 Elgin Avenue
Winnipeg, MB R3E 1B4

+1 204 488-1538 (Phone)
+1 204 488-1566 (Fax)
+1 204 294-1539 (Emergency)
Hours of Operation

We are closed on December 24 - 28, 2020 and
December 31, 2020 - January 4, 2021
Monday - Friday: 9:00 - 17:00
Saturday - Sunday:  CLOSED

In case of EMERGENCY please call (204) 294-1539.

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