Cleaning water before it reaches our taps often involves adding chlorine to kill harmful algae. But algae have a clever trick—they wrap themselves in sticky layers called extracellular polymeric substances, or EPS. These layers act like shields, protecting the algae from chlorine’s effects. Scientis
Wastewater plants use special methods to remove phosphorus before water goes back into nature. These methods often rely on tiny microbes that store phosphorus inside their cells. Recently, scientists noticed something surprising: when tiny plastic pieces (smaller than a grain of sand) mix with these
A team of researchers has built a new catalyst that can break down the pain‑killer acetaminophen from water more efficiently than before. The trick is to stick two different metal atoms – cobalt and copper – onto a thin sheet called Ti₃C₂Tₓ MXene. By balancing the two metals at a 1:1 ratio, they cre
Cleaning wastewater efficiently is tricky, especially when dealing with low levels of ammonia. Traditional methods struggle because harmful bacteria called nitrite-oxidizing bacteria (NOB) keep growing and messing up the process. This new approach flips the script by using a smarter loading strategy
A big problem in factories is that copper mixed with phosphate chemicals sticks together so tightly it resists usual cleaning methods. The new trick uses a soap‑like molecule called CTAB that forms tiny bubbles in water. Inside these bubbles the copper‑phosphate is pulled close to iron and a powerfu
Nothing we flush ever really disappears. Most of it ends up in a treatment plant where armies of bacteria quietly get to work, breaking down what we send down the pipes. In cities with advanced systems like the A2O process, wastewater passes through three stages—first without oxygen, then with limit
Recycling leftover eucalyptus wood into biochar turns a common trash problem into a water-cleaning hero. Scientists took ordinary wood chips from eucalyptus trees and heated them without oxygen, creating a material that grabs arsenic from polluted water. In lab tests, one gram of this biochar remove
Engineers shape the roads, bridges and water that keep communities alive. Their work is often hidden behind everyday life, yet it decides how safe and clean our world feels. The latest National Engineer’s Week highlighted this unseen influence, urging young people to see engineering as a creat
Water treatment just got a boost from a tiny element: sulfur. Scientists have been working on ways to make water treatment more effective and eco-friendly. They've come up with a new electrode that uses sulfur to make two key processes work better. These processes are ozone production and chlorine c
Wetlands are a cheap and easy way to clean water in small towns. But, most studies on these wetlands don't look at how they work when water flow changes throughout the day. This is important because water use in small towns isn't constant. In a recent study, three types of wetlands were tested. The
