Baltimore’s floating trash-eaters have intercepted 1 million tons of debris

February 21, 2017 by  
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Mr. Trash Wheel and Professor Trash Wheel sound like characters on a children’s program, but they are actually solar- and hydro-powered trash interceptors cleaning up Baltimore’s Inner Harbor. As cute as they are effective, Mr. Trash Wheel and Professor Trash Wheel have wide googly eyes, a snail-like shape, and the ability to suck up plastic bags , Styrofoam containers, cigarette butts, and other debris. The initial trash wheel prototype was created by local sailor and engineer John Kellett, who approached the city about trying to find a water pollution solution after watching debris floating in the Inner Harbor on a regular basis. After a little trial and error and a promising but inadequate first trash wheel, Kellett gained the support of the Water Partnership of Baltimore , a non-profit that supports environmental legislation and aims to make the area a green, safe, and friendly destination for both humans and animals. Mr. Trash Wheel, who has his own Twitter account, is the result of their union: he uses solar panels and the river’s current to turn a waterwheel, which then activates a conveyor belt. The  trash , which gets pulled in by floating containment booms, gets tangled and lifted by rotating forks before going up the conveyor belt and being deposited into the dumpster. Once the dumpster is full, it gets towed to a transit station, and Mr. Trash Wheel continues on his trash munching ways. But Mr. Trash Wheel doesn’t have to clean up the Inner Harbor’s water all by himself. Image © John Kellet, Clearwater Mills and Waterfront Partnership of Baltimore  Related: Baltimore’s solar-powered water wheel devours up to 50,000 pounds of harbor trash each day After Mr. Trash Wheel’s success, Kellett and the Water Partnership raised funds for a female garbage gobbling counterpart: Professor Trash Wheel. Professor does her work in another part of the Inner Harbor, but both trash wheels are in high demand, especially after rain or thunderstorms. Most of the debris they pick up actually comes from illegal dumping, trash chucked from cars, and cigarette butts stubbed out on the ground as opposed to from people directly littering into the river itself, but the flow of the area’s watershed eventually brings the trash into Professor and Mr. Trash Wheel’s territory. Mr. Trash Wheel has picked up more than a million pounds of trash from the Jones Fall River since it was rolled out in 2014, with the trash wheels filling an average of 70-100 dumpsters worth every year. 300,000 plastic bags , six thousand glass bottles, and nine million cigarette butts as well as more exotic offenders including a live ball python make up the waste that is removed from the waterway. The trash gets burned to generate electricity with plans to increase recycling capabilities in the future. In order to continue their progress and to stay in line with the Water Partnership’s goal of making the harbor swimmable and fishable by 2020, the city is hoping to add an additional trash wheel or two in the future and to serve as a model for other cities and areas with water pollution issues. Kellett is also looking into other potential trash wheel sites, including Rio de Janeiro, Honolulu, and Denver. While the ultimate goal is for trash wheels (even charming, googly-eyed ones with Twitter accounts) to become obsolete due to better environmental regulations and practices, expect to see more of these effective and playful floating trash devices in harbors and waterways near you. Via National Geographic Lead image © The Waterfront Partnership

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Baltimore’s floating trash-eaters have intercepted 1 million tons of debris
