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Search results for “Water Quality”

1,000+ results for "Water Quality"

How much water does US fracking really use?

A new Duke University study finds that energy companies used nearly 250 billion gallons of water for US fracking between 2005 and 2014, while generating about 210 billion gallons of wastewater. The study's findings highlight the need for better treatment and disposal methods for chemical-laden flowback water and brine-laden wastewater.

SourceDuke University·JournalEnvironmental Science & Technology Letters·DateSep 15, 2015

Water covers 70 percent of the Earth's surface, but only a fraction is fresh

The current issue of Technology and Innovation highlights the challenges of ensuring water security due to growing concerns over fresh water availability. Advances in analytical techniques, nanobiotechnologies, and monitoring methods are being explored to develop innovative solutions for water conservation and quality improvement.

SourceUniversity of South Florida·JournalJournal of Technology and Innovation·DateAug 25, 2015

Just say 'No' to drugs -- in water

A 16-year-old scientist has created a solution to remove pharmaceutical drugs from contaminated water, using a plastic adsorbent that can capture the chemicals. The innovative technique, tested over six years, shows promise for scaling up and applying it in real-world water treatment.

SourceAmerican Society of Agronomy·JournalJournal of Environmental Quality·DateJul 29, 2015

Where does water go when it doesn't flow?

A new study by University of Utah researchers shows that two-thirds of the remaining water after rainfall is released by plants, while more than a quarter lands on leaves and evaporates. The study also found that only 38% of water entering groundwater interacts with soil before reaching streams and groundwater.

SourceUniversity of Utah·JournalScience·DateJul 9, 2015

Tel Aviv/Tsinghua University project uses crowd computing to improve water filtration

A new study proposes a novel nanotechnology-based strategy to enhance water diffusion through sanitation filters using phonon oscillations, resulting in three times the efficiency of water transport. Crowdsourced computing played a crucial role in this project, with over 150,000 volunteers contributing their computing power.

SourceAmerican Friends of Tel Aviv University·JournalNature Nanotechnology·DateJul 6, 2015

Travertine reveals ancient Roman aqueduct supply

A study of travertine deposits in the Anio Novus aqueduct revealed an actual estimate of its flow rate, significantly lower than previous estimates. The aqueduct's average water level indicates it was almost always full of water, supplying Rome with a reliable water supply that enabled urbanization during the first century AD.

New planning toolset gives farmers more options for improving water quality

A promising new solution for improving water quality is the Agricultural Conservation Planning Framework (ACPF), a systematic approach to identifying best options for reducing nutrient losses and erosion within a watershed. The framework provides an inventory of conservation possibilities, allowing farmers and stakeholders to choose th...

SourceAmerican Society of Agronomy·JournalJournal of Environmental Quality·DateMay 27, 2015

Water fleas genetically adapt to climate change

Biologists from KU Leuven found that water flea populations can rapidly adapt to rising temperatures and increased heat wave frequencies. The study, using 'resurrected' eggs, showed a 3.6°C increase in critical temperature for activity.

SourceKU Leuven·JournalNature Climate Change·DateMay 11, 2015

Quenching the thirst for clean, safe water

A new foam water filter has been developed by Michigan State University researchers, which significantly reduces dangerous pathogens in drinking water. The filter combines existing treatment principles and features a unique biological layer that enables it to become more efficient over time.

SourceMichigan State University·JournalAmerican Journal of Tropical Medicine and Hygiene·DateApr 29, 2015

Mars: The planet that lost an ocean's worth of water

Scientists have estimated that Mars once had a massive ocean covering 19% of its surface, which would have made the planet habitable for longer. The new research uses detailed observations of water in Mars' atmosphere to determine the amount of water lost over time.

SourceESO·JournalScience·DateMar 5, 2015

Water-quality trading can reduce river pollution

A new study by Duke University researchers suggests that water-quality trading programs can significantly lower costs of achieving Clean Water Act goals. By allowing polluters to buy, sell or trade credits, these programs can reduce pollution in river basins and estuaries faster and at a lower cost than requiring facilities to meet com...

SourceDuke University·JournalWater Resources Research·DateSep 23, 2014

Residual hydraulic fracturing water not a risk to groundwater

New research by Penn State scientists suggests that hydraulic fracturing water is not a significant risk to groundwater, as it is sequestered in the rock formation. The study found that capillary and osmotic forces prevent upward migration of residual treatment water into overlying groundwater.

SourcePenn State·JournalJournal of Unconventional Oil and Gas Resources·DateSep 10, 2014

Researchers part water

Researchers have developed a method to isolate and separate para and ortho water molecules, which differ in their nuclear spin states. This breakthrough could provide new insights into various phenomena, including the study of interstellar ice and protein structures.

SourceDeutsches Elektronen-Synchrotron DESY·JournalAngewandte Chemie International Edition·DateSep 8, 2014

So... do you know what is in your water?

Researchers at Virginia Tech find that 50% of the population can't detect high levels of manganese in water, leading to potential health risks. The study's findings highlight the importance of considering water safety not only in tap water but also in humidified air.

Reducing water scarcity possible by 2050

Researchers from McGill and Utrecht University outline six strategies to reduce water stress, including improving irrigation techniques, increasing water-recycling facilities, and limiting population growth. By applying these strategies simultaneously, significant reductions in water-stressed populations are possible by 2050.

SourceMcGill University·JournalNature Geoscience·DateAug 29, 2014

Diet change -- A solution to reduce water use?

Researchers at Aalto University found that shifting to vegetarian diets can reduce green water use by up to 21% and blue water use by up to 14%. This could secure food supply for an additional 1.8 billion people without increasing water resources.

SourceAalto University·JournalEnvironmental Research Letters·DateAug 4, 2014

Water bonus flows from climate change measures

A new study by Monash University found that implementing efficiency measures addressing climate change can reduce water consumption. Energy efficiency measures, such as wind power and solar photovoltaics, were identified as key options for saving water while reducing greenhouse gas emissions.

SourceMonash University·JournalClimatic Change·DateJul 4, 2014

Water from improved sources is not consistently safe

A comprehensive review found that improved water sources in low- and middle-income countries often contain fecal contamination. The study's findings suggest a large proportion of the world's population uses unsafe water, highlighting the need for alternative indicators of safe water.

SourcePLOS·JournalPLOS Medicine·DateMay 6, 2014