“Concrete sponge” to filter parking lot run off. Mother earth gives thumbs up.

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by Mike
Posted October 30th, 2009 at 2:06 pm

You may thing there isn’t anything “technological” about a parking lot. It’s a simple mass of various minerals and compounds that are unmoving, unchanging, and wholly static. People, it’s a concrete slab for crying out loud. What could it do. While all sorts of energy regenerating technologies can be incorporated into the concrete floor that covers large swaths of cities, one thing that many people tend to over look is how to prevent waste run off.

Introducing the parking lot of tomorrow — a sponge-like, porous concrete that filters water and other automotive liquids as to remove environmental contaminants before they enter the ground water. Seems like a pretty awesome idea doesn’t it? The testbed for this high tech concrete sponge is the Environmental Protection Agency’s 43,000 sq. ft. parking lot located in Edison, New Jersey. One interesting tidbit is that they aren’t just testing one type of permeable concrete but three different variations!

Parking lots as you all know are dumps full of all kinds of waste. Though automotive waste is the biggest concern as all of the various liquids contained in cars end up at some point or another in our ground water. While water filtration plants filter (most of) the harmful contents out, having the filtration done by an physical object that doesn’t use any electricity and doesn’t move has huge cost saving possibilities. Who would have thought concrete could be so cool?

Pop Sci > Scientific American

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