The best of EcoWatch, right in your inbox. Sign up for our email newsletter!
How a Solar-Powered Water Wheel Can Clean 50,000 Pounds of Trash Per Day From Baltimore's Inner Harbor
A large wheel has been strolling the Baltimore Inner Harbor the past month, doing its best to clean the trash that has littered a city landmark and tourist attraction.
It's called the Inner Harbor Water Wheel, and though it moves slow, it has the capability to collect 50,000 pounds of trash. The timing for John Kellett's solar-powered creation is crucial—hands and crab nets simply can't keep up with the growing amount of wrappers, cigarette butts, bottles and other debris carried from storm drains into the harbor.
"It looks sort of like a cross between a spaceship and a covered wagon and an old mill," says Kellett told NPR. "It's pretty unique in its look, but it's also doing a really good job getting this trash out of the water."
The wheel has become an integral part of the Healthy Harbor Waterfront Partnership Initiative. It receives power from the Jones Falls river's current near the harbor, which turns the wheel and lifts trash from the water into a dumpster barge. A solar panel array keeps it running when there water current isn't enough.
The wheel is now docked to the harbor. Each it runs, it removes an impressive amount of debris. So far, it has never collected less than eight cubic yards of trash.
Healthy Harbor hopes to make the body of water swimmable in less than six years, and the Water Wheel could be a big part of that.
"The water wheel has been a time-saver for us," said Bill Flohr, who runs Baltimore Harbor's East Marina. "It seems to be collecting probably 95 percent of what we normally had to pick up by hand."
EcoWatch Daily Newsletter
By Bijal Trivedi
The Centers for Disease Control and Prevention (CDC) released a report on Nov. 13 that describes a list of microorganisms that have become resistant to antibiotics and pose a serious threat to public health. Each year these so-called superbugs cause more than 2.8 million infections in the U.S. and kill more than 35,000 people.
By Joe Vukovich
Under the guise of responding to consumer complaints that today's energy- and water-efficient dishwashers take too long, the Department of Energy has proposed creating a new class of dishwashers that wouldn't be subject to any water or energy efficiency standards at all. The move would not only undermine three decades of progress for consumers and the environment, it is based on serious distortions of fact regarding today's dishwashers.
By Emily Moran
If you have oak trees in your neighborhood, perhaps you've noticed that some years the ground is carpeted with their acorns, and some years there are hardly any. Biologists call this pattern, in which all the oak trees for miles around make either lots of acorns or almost none, "masting."
By Catherine Davidson
Tashi Yudon peeks out from behind a net curtain at the rooftops below and lets out a sigh, her breath frosting on the windowpane in front of her.
Some 700 kilometers away in the capital city Delhi, temperatures have yet to dip below 25 degrees Celsius, but in Spiti there is already an atmosphere of impatient expectation as winter settles over the valley.