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Fat, oil and grease (FOG) in sewers, like in our blood vessels, can accumulate and produce hard deposits which interfere with the sewage flow. will explain at 91av live how these deposits grow bigger over time and can become huge underground fatbergs, composed of saponified fats congealed with non-flushable products.

Based at De Montfort University, Villa is an expert on microbial bioengineering and uses her particular expertise in microbial and enzymatic processes in the environmental sectors.

is the world’s greatest science festival and runs from 10 to 13 October at ExCel London. You can .