Beer waste is being turned into batteries

first_imgStay on target Beer really is amazing stuff. How amazing? It’s so amazing that even the waste produced by the brewing process can be used to do pretty incredible things.Take the work that’s being done by a team of researchers in Colorado, for example. They’ve partnered up with Avery Brewing in Boulder to produce a critical battery component using the wastewater that is producing their two dozen-plus craft beers creates.They’ve developed a very clever method of making carbon-based electrodes for lithium-ion batteries, and they have a very cool partner that helps them do it. That partner is Neurospora crassa, a rapidly-growing filamentous fungus.N. crassa (the handsome little devil above) has a sweet tooth, and it just so happens that Avery Brewing’s wastewater makes a rather tasty snack for it. Once the fungus has grown to an appropriate size, it’s pyrolyzed to form the electrode material. It’s a highly sustainable process, and they believe it’s one that can easily handle industrial-scale production.It’s also a much more eco-friendly way to deal with a brewery’s wastewater. This isn’t stuff that can be pumped out into municipal sewer systems — it has to be thoroughly filtered before that’s even allowed to happen. Even if that wasn’t a resource-intensive process, it’s definitely not a more appealing option than feeding the liquid to a fungus to produce a material that can be sold to battery makers for profit.Technically this now means that your urine can be used to produce new batches of beer… and the was from that beer can be used to make the battery for the smartphone that you tap to an NFC mug to earn free beers… which eventually make you pee, and the process starts all over again. It’s the circle of liiiiiiiiiiiiiiiiiiiiiiiiiife! Fiber-Based Six-Pack Can Rings Offer Eco-Friendly Alternative to PlasticEven More Kellogg’s Cereal Gets Re-Born as Craft Beer last_img

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