What goes down your toilet can end up on farm fields across the United States. Biosolids, or sewage sludge, are the solid byproducts of the wastewater treatment process. Rich in nutrients, they can be ...

Ammonia rarely makes headlines, but much of modern life depends on it. The compound of nitrogen and hydrogen is the key ingredient in the fertilizers that help feed roughly half of the world’s ...

Researchers have developed a simplified, sustainable method of converting sewage sludge from wastewater treatment into high-value activated carbon that can be used in a wide range of industrial and ...

Rates could double. We spoke with the Columbus Water Works president and CEO to learn about this project's costs and how it ...

A new method to treat sewage can efficiently convert leftover sludge to biogas, an advance that could help communities lower their waste treatment costs while helping the environment. A new method to ...