A man standing in a laboratory, writing in his notebook. A team led by Case van Genuchten, seen here in in a laboratory in India, has found a way to extract metallic arsenic from wastewater sludge.

Sewage sludge at the Wakarusa Wastewater Treatment Plant before it is thickened for land use is pictured on Friday, February 14, 2025. In these bubbling basins, you’ll find some of the hardest workers ...

The San Antonio River Authority is looking for a supply of polymer — and interested vendors can request a sludge sample to make sure they’re the right fit. So what does that all mean? And how does ...

Each year, the United States produces more than 12 million tons of sludge – the thick mixture of solid and liquid matter left over from processing wastewater and raw sewage in treatment plants. And it ...

Subscribe to our newsletter for the latest sci-tech news updates. What comes out of our wastewater treatment plants may not be very appealing, but the real problem is what is left behind after water ...