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Supermarket Uses Expired Food As Its New Power Source

  • July 26, 2014
  • 5:29 am
Supermarket Uses Expired Food As Its New Power Source

Food in a British supermarket too rotten to be sold is still being digested—by a plant that turns it into electricity to power the store. The Sainsbury’s store says it’s the first retail outlet in the country to remove itself from the national power grid, receiving electricity directly from a nearby anaerobic digestion plant that turns food waste from Sainsbury’s outlets into bio-gas, the BBC reports.

“Sainsbury’s sends absolutely no waste to landfill and we’re always looking for new ways to re-use and recycle,” a company spokesman says.

At the digestion plant, expired food is placed in tanks and digested by bacteria that thrive without oxygen, breaking the food down into methane gas which is used to generate power, explains Popular Science, which notes that anaerobic digestion plants are planned for numerous US cities and the Kroger grocery chain has a distribution plant partly powered by old food. And there is plenty of room for expansion of the effort: More than a billion tons of food are wasted every year, with people in North America and Europe wasting around 220 pounds each, the Smithsonian finds. (A restaurant in Chicago, however, has managed to limit its waste to just 8 gallons in two years.)

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70 comments

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3:39AM PDT on Aug 8, 2014

We need to do that in every grocery market

4:38AM PDT on Aug 2, 2014

ty

5:13AM PDT on Jul 30, 2014

Good idea!

10:41PM PDT on Jul 29, 2014

My uncle has something similar set up at his farm, they have almost zero waste and create most of their own energy. I hope ideas like this will spread and become more commonplace.

10:41AM PDT on Jul 29, 2014

Too bad more places don't do this!

9:37AM PDT on Jul 29, 2014

Awesome, way to go!

10:52PM PDT on Jul 28, 2014

This is exactly the kind of clever idea we need to save humanity

9:43PM PDT on Jul 28, 2014

Cool!

4:18PM PDT on Jul 28, 2014

Wow, I am impressed!

9:41AM PDT on Jul 28, 2014

GREAT IDEA!

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people are talking

So adorable! Makes me want to grab them, hug them and kiss them

Best part of the apple as far as I'm concerned was the skin.

Ignored. According to these 'surveys,' virtually everything will make you fat. Shower curtains, ha…

Yep, I make all that stuff myself and it's definitely better.

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