How to purify water with waste materials


(Tomsk Polytechnic University) Sand, coral and even waste building materials can become extremely efficient sorbents for water purification from toxic substances, if they are subject to treat in a special way.

Faster groundwater remediation with thermal storage


Groundwater. Image Source: Wikimedia Commons.

Aquifer thermal energy storage (ATES) is more than a renewable energy source. The storage and extraction of heat and cold can remediate polluted groundwater ten times faster than existing technologies, a researcher says.

Protecting lakes, streams by removing phosphates as well as nitrates

EarthzineAgriculture, Water

A low-cost method of removing phosphates from tile drainage water has been developed, and may help protect lakes and streams. Using steel byproducts to trap phosphates in simulated tile drainage water, the researchers envision installing a steel-containing cartridge as an add-on to nitrate-capturing bioreactors.