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Digestor Pipe Repair

Digestor Pipe Repair

THE PROBLEM

A Wastewater Treatment Facility was experiencing significant issues with digestor pipes clogging and needed some digestor pipe repairs and upgrades. Over time, an 8-inch diameter pipe had become choked down to a 1-inch diameter due to buildup on the pipe walls. This buildup caused back pressure issues and placed a strain on the pumps.

Additionally, the customer was frustrated with the amount of time and labor required to clean the pipes every few months. The pipes were made of ductile iron and lined with concrete.

They contacted the USI Team for an unconventional, long-lasting solution to help the flow stay open for a longer period of time.

THE SUBSTRATE

Ductile Iron & Lined with Concrete

THE SOLUTION

Digestor Pipe Repair Digestor Pipe Repair Digestor Pipe Repair Digestor Pipe Repair

USI Groups devised a plan to repair this digestor pipe and address the issue using Resimetal 203 Super Flow with a primer to coat the interior of the pipes. Resimetal 203 was chosen for its ability to create a surface 10 times smoother than bare steel, which improves fluid flow dynamics. Unlike the original concrete-lined pipes, Resimetal 203 eliminates edges and ridges, reducing the chance for future buildup.

The pipes were dismantled and taken to a facility where they were sandblasted to a profile of 2.5-4.5 mils and cleaned using USI Universal Cleaner. Once dry, a layer of Resichem 503 SPEP primer was applied to the interior of the pipes. As soon as the primer became tacky, one coat of Resichem 203 (red) was applied. After approximately two hours, when the first coat became tacky, a second coat of Resimetal 203 (grey) was applied. The pipes were allowed to cure for two full days before being returned to the customer and reinstalled.

PRODUCTS USED

Resimetal 203 Super Flow
Resichem 503 SPEP Primer
USI Universal Cleaner

 

For comprehensive and effective pipe repairs and upgrades in wastewater facilities, reach out to Unconventional Solutions below to speak with a technical expert.

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