Engineering

Tracking down polluters

Proving criminal machinations can be difficult—for instance when those involved covertly discharge hazardous wastewater into sewers. A new sensor system developed by Fraunhofer researchers and their partners could soon ...

Energy & Green Tech

Harnessing sunlight to pull hydrogen from wastewater

Hydrogen is a critical component in the manufacture of thousands of common products from plastic to fertilizers, but producing pure hydrogen is expensive and energy intensive. Now, a research team at Princeton University ...

Engineering

New plant tests energy-saving way to treat wastewater

Billions of years ago, when Earth's atmosphere reeked of unbreathable gases, microbes evolved in the absence of oxygen. As Earth matured and the nitrogen-oxygen atmosphere formed, these anaerobic, or oxygen-averse, bacteria ...