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Where It’s Used: Wastewater and Water Treatment Plants

Corrosion to pipes, valves, fittings and tank lining caused by chemicals and microbes can greatly impact the bottom line at wastewater and water treatment plants. Engineers and procurement officials must find cost-effective technologies that ensure quality and reliability.

Corzan® CPVC is well-suited to treat raw water corrosive chemicals and where chloride levels exceed the limitations of 316L stainless steel. Corrosion resistant and strong, Corzan CPVC has demonstrated long-term performance in water distribution applications—even in aggressive saltwater environments.

Metal pipe with scale
Corzan CPVC after years of service

Two pipes after years in use for wastewater treatment. The metal pipe (left) is severely corroded, while the Corzan CPVC pipe (right) has maintained its surface smoothness and inside diameter.

A Solution Wastewater and Water Treatment Industries Trust

For 60 years, Corzan Material and Piping Solutions – made from non-corrosive, high-performance CPVC – has provided an excellent balance of properties that improve reliability and confidence while reducing capital and life-cycle costs for water and wastewater treatment plants.

Primary Wastewater Treatment: Corzan CPVC is ideal for primary wastewater treatment, as it is not susceptible to microbial corrosion and is resistant to commonly used chemicals, including ferrous chloride, ferric chloride, alum, and alkaline lime slurry systems that neutralize the acid generated during the nitrification of ammonia.

Since it is resistant to scaling and fouling, Corzan CPVC maintains its friction factor throughout its entire service life. With a constant Hazen Williams C Factor of 150, smaller piping can often be specified, resulting in significant cost savings. This means that less energy or horsepower is required to transfer fluids.

Secondary Wastewater Treatment: In this part of the process, piping is exposed to high concentrations of microorganisms when excessive biological growth washes out and collects in a clarifier. Byproducts of these microbes, including acids or hydrogen sulfide, or disinfectants and dechlorination chemicals, contribute to the corrosion of metallic piping systems.

Corzan CPVC stands up to both chemical and microbial corrosion, even when used to transport highly concentrated acids and caustic solutions used for pH control. It can also be used in outdoor applications, as it has excellent UV resistance and high heat tolerance.

Advanced Water Treatment: Corzan Material and Piping Solutions provide reliable performance even when exposed to cooling tower applications and handling nominal concentrations of methanol for biological denitrification. Corzan CPVC is pressure rated to 200°F, making it ideal for double-containment systems, which are often required to transport treatment chemicals underground.

Wastewater Odor Control: With today's long list of odor control mandates, Corzan CPVC is a proven material used in both traditional wastewater applications and in scrubbers and ancillary equipment.

Whether a plant is using sodium hydroxide and sodium hypoclorite in its wet air scrubbers at temperatures as high as 200°F (93.33°C) or metal chelating agents in a liquid redox process, Corzan CPVC offers the chemical resistance and superior high-temperature performance that wastewater odor control processes require.

Guide: CPVC Use in Wastewater Treatment Plants

Whether you’re processing sewage, industrial wastewater or agricultural wastewater, learn where you can install specifically engineered Corzan CPVC to extend service life of a system and increase reliability.


Contact a Corzan CPVC Specialist

One of the many things that sets Corzan CPVC apart from the competition is our service. The Corzan CPVC team has a proven record of personalized, timely customer care. Get expert answers to your question to help make your project a success with Corzan CPVC.


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