Water board aims to provide model of sustainability by collecting byproduct when orange-clad revellers take the pils

It is a process as natural as it is inevitable: the consumption of large quantities of beer leads to the production of large quantities of another amber liquid.

But when up 1.5 million ale-fuelled revellers take to the streets and canals of Amsterdam on Wednesday for the city’s annual King’s Day celebrations, the local water board does not intend to let it go to waste.

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Source: Guardian Environment