Wastewater
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Scientists at the Department of Energy’s Lawrence Berkeley National Laboratory have produced a material they say can selectively capture specific heavy metals from wastewater, and do so with unmatched speed and precision down to the atomic level.
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Technologies that extend the lifespan of perishable foods could help us avoid huge amounts of waste, and scientists in Singapore have unearthed a promising new possibility in the form of chemically treated pineapple leaves.
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After wastewater such as sewage has been processed at water treatment plants, a sandy grit is typically left over. And while that grit usually ends up in landfills, it could soon instead be used in a more eco-friendly pothole repair material.
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Antibiotic-resistant bacteria are emerging as a serious public health threat. Now, researchers have developed a system using nanoparticles wrapped in graphene oxide to kill both the superbugs and their free-floating resistance genes in wastewater.
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Making biofuel from algae is showing promise as a green energy source, but it does create large amounts of toxic wastewater. Now, researchers in Australia have found a way to clean up that wastewater, with a simple and scalable electrical process.
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Scientists in Italy have uncovered evidence of the coronavirus appearing in sewage months before the country confirmed its first cases, a finding that may help them understand the origins of the virus and how it spread throughout the country.
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Steel slag is currently utilized both to treat wastewater, and as a concrete aggregate. New research now indicates that using it for the former makes it perform even better as the latter – so the same slag could be used twice.
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Even after superbugs have been wiped out they can leave behind resistance genes for other bugs to use. Now, researchers at Rice University have developed new nanosheets that can “trap and zap” these loose genes in wastewater treatment plants.
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Scientists at Berkeley Lab have developed a sort of “solar umbrella” which could radically reduce the amount of land needed for industrial evaporation ponds.
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Coastal wastewater treatment plants may be a nasty but necessary way to handle the effluent from our cities, but a new study by Stanford University indicates that by mixing fresh water from the plants with seawater, they have the potential to recover 18 gigawatts of electricity worldwide.
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Science"Hypersaline brine" is industrial waste-water with salt levels that exceed even that of seawater. It’s a big, expensive, destructive problem which a team of engineers at Columbia University in New York City hope to solve with their solvent-based method of desalination.
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Endocrine disrupting chemicals (EDCs) are mostly man-made compounds found in substances such as pesticides, food additives and personal care products. Unfortunately, they're also linked to some serious health issues. It appears that algae, however, could be used for removing them from wastewater.
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