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Filtering radioactive elements from water

Membrane massively reduces volumes of waste

01-Oct-2020

The nuclear accident in Fukushima remains etched into people's memories. It was a catastrophe that caused huge amounts of radioactively contaminated water to be released, which the operators of the nuclear power plant subsequently had to clean up. One of the methods they used was reverse osmosis ...

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Turning jellyfish from a nuisance to useful product

13-Nov-2017

Global climate change and the human impact on marine ecosystems have led to dramatic decreases in the number of fish in the ocean. It has also had an unforseen side effect: because overfishing decreases the numbers of jellyfish competitors, their blooms are on the rise. The GoJelly project, ...

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Separating methane and CO2 will become more efficient

19-Oct-2017

To make natural gas and biogas suitable for use, the methane has to be separated from the CO2 . This involves the use of membranes: filters that stop the methane and let theCO2 pass through. Researchers at KU Leuven (University of Leuven), Belgium, have developed a new membrane that makes the ...

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Filter may be a match for fracking water

27-Sep-2017

A new filter produced by Rice University scientists has proven able to remove more than 90 percent of hydrocarbons, bacteria and particulates from contaminated water produced by hydraulic fracturing (fracking) operations at shale oil and gas wells. The work by Rice chemist Andrew Barron and his ...

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Tiny lasers from a gallery of whispers

21-Sep-2017

Whispering gallery mode (WGM) resonators are used to make tiny micro-lasers, sensors, switches, routers and other devices. These tiny structures rely on a phenomenon similar to an effect observed in circular galleries, such as in some cathedrals or museums, where sound waves travel across the ...

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Heavy metals in water meet their match

28-Jul-2017

Carbon nanotubes immobilized in a tuft of quartz fiber have the power to remove toxic heavy metals from water, according to researchers at Rice University. Prize-winning filters produced in the lab of Rice chemist Andrew Barron by then-high school student and lead author Perry Alagappan absorb ...

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Revolutionary new materials for troubled carbon times

Super filters the world can afford

07-Jun-2017

Around 2800BC, the ancient inhabitants of Ur, Mesopotamia made a discovery that was to change civilization. They learned that if they blended copper and tin into an alloy, the new composite material was stronger, more useful, and more valuable than any man-made substance to date. It gave its name ...

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Graphene sieve turns seawater into drinking water

05-Apr-2017

Graphene-oxide membranes have attracted considerable attention as promising candidates for new filtration technologies. Now the much sought-after development of making membranes capable of sieving common salts has been achieved. New research demonstrates the real-world potential of providing ...

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Composite material for water purification

Removal of multiple contaminants from water by supported ionic liquid phases

17-Jan-2017

Fresh, clean water coming directly from the tap is a true luxury. In developing countries, people often have no choice but to use a contaminated river for drinking water. Water filters can help by quickly converting polluted surface or ground water into safe drinking water. In the journal ...

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Glowing crystals can detect, cleanse contaminated drinking water

30-Nov-2016

Tiny, glowing crystals designed to detect and capture heavy-metal toxins such as lead and mercury could prove to be a powerful new tool in locating and cleaning up contaminated water sources. Motivated by publicized cases in which high levels of heavy metals were found in drinking water in Flint, ...

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