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50 Current news about the topic environmental engineering

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Large-scale and sustainable 3D printing with the most ubiquitous natural material

08-Jun-2018

Cellulose is one of the most abundant and broadly distributed organic compound and industrial by-product on Earth. Yet, despite decades of extensive research, the bottom-up use of cellulose to fabricate 3D objects is still plagued with problems that restrict its practical applications: ...

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Weak hydrogen bonds key to strong, tough infrastructure

31-Jan-2018

The right mix of hydrogen bonds in polymer and cement composites is critical to making strong, tough and ductile infrastructure material, according to Rice University scientists who want to mimic the mechanics of mother-of-pearl and similar natural composites with synthetic materials. Seashells ...

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Safer carbon nanomaterials, by design

08-Sep-2017

Carbon nanomaterials (CNMs) are a class of engineered nanomaterials that can be used for many environmental applications, including water treatment and contaminant sensing and remediation. While they are prized for their ability to detect, remove, or degrade contaminants in the environment, CNMs ...

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Indented cement shows unique properties

21-Jul-2017

Rice University scientists have determined that no matter how large or small a piece of tobermorite is, it will respond to loading forces in precisely the same way. But poking it with a sharp point will change its strength. Tobermorite is a naturally occurring crystalline analog to the ...

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Bacteria-coated nanofiber electrodes clean pollutants in wastewater

30-Jun-2017

Cornell University materials scientists and bioelectrochemical engineers may have created an innovative, cost-competitive electrode material for cleaning pollutants in wastewater. The researchers created electro-spun carbon nanofiber electrodes and coated them with a conductive polymer, called ...

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Air pollution casts shadow over solar energy production

29-Jun-2017

According to a new study, airborne particles and their accumulation on solar cells are cutting energy output by more than 25 percent in certain parts of the world. The regions hardest hit are also those investing the most in solar energy installations: China, India and the Arabian Peninsula. "My ...

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Cold conversion of food waste into renewable energy and fertilizer

02-Jun-2017

Researchers from Concordia's Department of Building, Civil and Environmental Engineering (BCEE) in collaboration with Bio-Terre Systems Inc. are taking the fight against global warming to colder climes. Their weapon of choice? Cold-loving bacteria. In a study authors Rajinikanth Rajagopal, David ...

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Squeezing every drop of fresh water from waste brine

31-May-2017

Engineers at the University of California, Riverside have developed a new way to recover almost 100 percent of the water from highly concentrated salt solutions. The system will alleviate water shortages in arid regions and reduce concerns surrounding high salinity brine disposal, such as ...

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Silver nanoparticle concentration too low to be harmful in water supply

17-Oct-2016

Silver nanoparticles have a wide array of uses, one of which is to treat drinking water for harmful bacteria and viruses. But do silver nanoparticles also kill off potentially beneficial bacteria or cause other harmful effects to water-based ecosystems? A new paper from a team of University of ...

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Yale researchers’ technology turns wasted heat into power

29-Jun-2016

Researchers at Yale have developed a new technology that could make energy from the low-temperature wasted heat produced by industrial sources and power plants, tapping into a widely available — and mostly unused — resource. It is estimated that recoverable waste heat in the U.S. alone could ...

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