Engineers Develop Anti-Fatberg Coating to Combat Sewer Blockages

A new zinc-enhanced polyurethane coating shows promise in reducing fatberg formation in sewers by limiting calcium release.

Fatbergs, composed of fat, oil, grease, and other debris, cause significant sewer blockages, responsible for 40% of blockages in Australia and 50% in the US.
The newly developed coating reduces the release of calcium from concrete by 80%, a key factor in fatberg formation.
In laboratory tests, the coating decreased the build-up of fats, oils, and grease by 30% compared to uncoated concrete.
The coating is water-stable, withstands high temperatures, and features self-healing properties to extend its lifespan.
Further research aims to enhance the coating's effectiveness and mechanical strength before potential commercial implementation.