Australian engineers invent anti-fatberg coating to tackle sticky sewer problem

Zinc and polyurethane product could stop dangerous blockages in concrete wastewater pipes – but is a few years off commercial use

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Australian engineers have invented an anti-fatberg coating for sewer pipes that could prevent the congealed masses from blocking the wastewater system and leading to overflows and flooding.

Fatbergs – solidified masses of fat, oil and grease that accumulate in sewer pipes, collecting wet wipes and other material – are a major concern for wastewater authorities globally, responsible for 40% of blockages in Australia, and a likely source for the mysterious balls that recently washed up on Sydney beaches.