Water Sector News & Trends

New Technology Could Generate Electricity From Wastewater And Seawater

https://www.designnews.com/content/new-technology-could-generate-electricity-wastewater-and-seawater/6407157861250

Researchers at Stanford University have developed a “mixing entropy battery” (MEB) that can harness energy from the mixing of fresh and salt water. The energy created this way is sometimes called “blue energy.” According to a Stanford news release, the team’s objective is to apply the technology to coastal wastewater treatment plants and to use the electricity generated to make the plants energy-independent and carbon-neutral.

“Blue energy is an immense and untapped source of renewable energy,” said Kristian Dubrawski, a postdoctoral scholar in civil and environmental engineering at Stanford. “Our battery is a major step toward practically capturing that energy without membranes, moving parts or energy input.”