Green corrosion on pipes is a type of corrosion that frequently occurs in water services

The source of the problem is non-turbulent flow which allows dissolved oxygen to remain stable at high concentrations, allowing aerobic bacteria to grow and release acidic metabolic products.

Another reason for green corrosion is low pH caused by acid mine drainage or acidic groundwater.

Green corrosion is not to do with the color green, but rather it is named after the bacteria that cause the problem.

The bacteria involved are known as Leptothrix (formerly known as ‘Sphaerotilus’).

The type of damage caused by them includes pitting and perforation. These damages can lead to significant leakage of water.

This type of piping is not suitable for the new low-corrosion, low-pH environment expected by modern environmental regulations.

Pipes made from cement mortar lining or plastic material are recommended.

Newer designs include filters to prevent growths of microorganisms on pipes and less expensive anti-corrosion materials.

How to prevent green corrosion:

* The key to prevention of this type of corrosion is the avoidance of low-pH conditions.

* Decrease acid inputs such as sulfuric and nitric acid, sewage water, and acidic groundwater (e.g., from abandoned mines).

* Increase chlorine or other disinfectant levels in distribution systems.

* Drain distribution systems on a regular basis.

* Introduce corrosion inhibitors to the system.

* Use non-metallic piping materials such as plastics, concrete lining, and mortar lining.

What it means when you see green corrosion on pipes: Green corrosion on pipes is a type of corrosion that frequently occurs in water services. The source of the problem is non-turbulent flow which allows dissolved oxygen to remain stable at high concentrations, allowing aerobic bacteria to grow and release acidic metabolic products. Another reason for green corrosion is low pH caused by acid mine drainage or acidic groundwater. Green corrosion is not to do with the color green, but rather it is named after the bacteria that cause the problem.

The type of damage caused by them includes pitting and perforation. These damages can lead to significant leakage of water. This type of piping is not suitable for the new low-corrosion, low-pH environment expected by modern environmental regulations. Pipes made from cement mortar lining or plastic material are recommended. Newer designs include filters to prevent growths of microorganisms on pipes and less expensive anti-corrosion materials.

In conclusion , green corrosion on pipes is not to do with the color green, but rather it is named after the bacteria that cause the problem. The type of damage caused by them includes pitting and perforation. These damages can lead to significant leakage of water.

 

For more information, contact Vinny’s Jersey Plumbing, located in Wayne, New Jersey.  We also service other areas in New Jersey, such as Bergenfield, Kinnelon and Elmwood Park.