Machine purifies Flint river water on the spot for residents hit by crisis

February 22, 2016 by  
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A company from Florida traveled all the way to Michigan to provide clean drinking water to residents of Flint , who are still unable to use water from their taps due to high levels of lead and other contaminants stemming from corroded pipes. They didn’t bring trucks filled with water, though. Instead, ANSA Technologies  is sourcing water from the Flint River – the very same source that led to the water crisis in the first place – and purifying it on the spot. Read the rest of Machine purifies Flint river water on the spot for residents hit by crisis

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Machine purifies Flint river water on the spot for residents hit by crisis

Recycling CDs for Wastewater Treatment

September 30, 2013 by  
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Someone has finally come up with an upcycling use for old CD discs. Din Ping Tsai, a physicist at National Taiwan University, has developed a small, low-power method for treating wastewater using UV light and zinc oxide applied to the CDs. Using old CDs as a substrate to coat with zinc oxide provides a low cost layer which can be spun as water is applied, creating a thin film of water which more effectively interacts with the photocatalytic layer of zinc oxide nanorods. In tests, the device was able to break down over 95% of the contaminants after an hour of treatment. Though this could be a wonderful application for old CDs, it’s unlikely to solve the waste accumulation from billions of old CDs. The number used for this treatment system, even if it becomes widely adopted, is going to be a tiny fraction of the total production of CDs (which, at present is about 20 billion CDs per year). “The spinning disk reactor is small, consumes little power, and processes contaminated water more efficiently than other photocatalytic wastewater treatment methods, Tsai says. The device could be used on a small scale to clean water contaminated with domestic sewage, urban run-off, industrial effluents, and farm waste. Going forward, the team is also working on ways to increase the efficiency of the reactor, and Tsai estimates that the system could soon be improved to work even faster, perhaps by creating layers of stacked disks.” While the system seems best suited to small installations, rather than big, municipal facilities, it is nevertheless an interesting system, and the ability to also deal with an e-waste issue at the same time as creating equipment for effective wastewater treatemt is a positive synergy. via: Treehugger

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Recycling CDs for Wastewater Treatment

Fracking Wastewater Disposal Plan Could Send Contaminants Over Niagara Falls

October 21, 2011 by  
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Rinaldo Wurglitsch / CC BY 2.0 The contentious debate over hydraulic fracturing for natural gas in New York State just took a turn towards the weird. As Care2 reports, natural gas companies and the Niagara Falls Water Board have agreed to a plan for fracking wastewater disposal … Read the full story on TreeHugger

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Fracking Wastewater Disposal Plan Could Send Contaminants Over Niagara Falls

Reforming Energy, Finance & Food With System Innovation – Live Chat With Stephanie Draper, Oct 26, 10am ET

October 21, 2011 by  
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Form for the Future /Promo image Given all the Occupy Wall Street action going on right now, and with rising energy prices and peak oil posing a real challenge to the viability of a the globalized economy , major corporations are probably not at the top of most environmentalists’ holiday gift list. But even many of

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Reforming Energy, Finance & Food With System Innovation – Live Chat With Stephanie Draper, Oct 26, 10am ET

Amazing Osorb Chemical Sponge Removes Contaminants From Water

October 3, 2011 by  
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A miracle chemical sponge could be the answer to cleaning up contaminated water and eliminating harmful toxins from the environment. A team led by chemist Paul Edmiston discovered the Osorb material, which removes toxins from water without bonding to H2O molecules, yielding clean water. The glass substance has been proven to act like a nanomechanical sponge that drinks up petroleum, solvents and other toxins. Osorb sponges can swell up to 8 times in volume as they scoop up contaminants, and the material can lift 20,000 times its own weight! Read the rest of Amazing Osorb Chemical Sponge Removes Contaminants From Water Permalink | Add to del.icio.us | digg Post tags: ABS Materials , chemical sponge , nanomechanical sponge , Osorb , Paul Edmiston , University of Wooster , wastewater management

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Amazing Osorb Chemical Sponge Removes Contaminants From Water

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