Can we turn the Whitechapel fatberg into biodiesel?

The human-waste bomb recently found clogging up a London sewer has an unlikely admirer - a Scottish renewable energy company

For a 130-tonne mass of grease, bound as hard as concrete by thousands of tampons, wipes and used tissues, the Whitechapel fatberg is in surprisingly high demand.

Last week, the Museum of London announced it wants to display a chunk of the human-waste bomb, recently unearthed in east London, as a way "to raise questions about how we live today". Now, a Scottish biodiesel company is taking a piece to turn into fuel.