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Chlorine and Chlorine Dioxide Disinfection Systems

Disinfection processes, such as chlorine or ultraviolet light, kill or inactivate disease-causing bacteria in water.

Chlorine Dioxide Disinfection
Chlorine dioxide (ClO2) is used as both a disinfectant and an oxidant in drinking water treatment. It has several distinct chemical advantages, which complement the traditional use of chlorine in potable water treatment.

Chlorine dioxide is highly effective in controlling waterborne pathogens while minimizing halogenated disinfection byproducts. Chlorine dioxide is a broad-spectrum microbiocide as effective as chlorine against viruses, bacteria, and fungi, and more effective than chlorine for the inactivation of the encysted parasites Giardia and Cryptosporidium. Chlorine dioxide is also an effective control strategy for taste, odor, color, iron, and manganese removal.

Chlorine Disinfection
Chlorine is added to drinking water to destroy pathogens (disease-causing organisms). It can be applied in several forms: elemental chlorine (chlorine gas), sodium hypochlorite solution (bleach) and dry calcium hypochlorite. When applied to water, each of these forms “free chlorine,” which destroys pathogenic (disease-causing) organisms.  Chlorine is also is an effective control strategy for taste and odor.  Chlorine disinfectants will eliminate slime bacteria, molds and algae that commonly grow in water supply reservoirs, on the walls of water mains and in storage tanks.

We supply a complete range of these disinfection technologies, which are used for wastewater as well as drinking water. Our product line includes Wallace & Tiernan, the inventor of the chlorinator in the early 1900s, as well as chlorine control systems, emergency chlorine scrubbers, and de-chlorination systems.


 Download Potable Water Disinfection with Chlorine Dioxide (PDF)
 Download Chemical Feed Capabilities Overview Brochure (PDF)

Contact Us

For more information about chlorine and chlorine dioxide disinfection, contact the Information Desk, Monday through Friday, 8 a.m. to 5 p.m., Eastern Standard Time:

800.525.0658 or 724.772.1402

Chlorine Gas Disinfection System V2000


Featured Products and Services

Series 50-204 Automatic Chlorine and Chlorine Dioxide Changover System
Wallace & Tiernan Products Series 50-204 Automatic Switchover System is designed to give uninterrupted chlorine, sulfur dioxide or ammonia supply.
Acutec 35 Chlorine Gas Detector
Acutec 35 Gas Detection System utilizes the latest on-line gas monitoring technology to provide a flexible and reliable, self testing detection system in a compact, modular design. Acutec 35 is ideal for detecting leaks from storage containers,  etc.

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