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
Wastewater treatment plants are under scrutiny for their role in releasing nitrous oxide, a potent greenhouse gas. With the rise of digital tech, scientists are turning to machine learning to predict and manage these emissions. This approach leverages vast amounts of data from various sources to mak
Eswatini's waters are under threat from a silent invader: emerging pollutants (EMPs). These pollutants, often overlooked, can harm both people and wildlife. A recent study took a closer look at these EMPs in the country's wastewater and rivers. Using advanced technology, researchers identified 347 d
The workers at Portland's wastewater treatment plant are doing a tough job. They are dealing with an old plant that needs a lot of care. The plant was built a long time ago. It wasn't made for the kind of waste we have today. There's more of it, and it's more complicated. These workers are handling
In a clever twist on waste management, scientists found a way to turn a problem into a solution. They used a mix of algae and cyanobacteria to clean up a messy byproduct of maize processing called nejayote. This isn't just about cleaning up, though. The team also wanted to see if they could make som
Water from homes travels through pipes to a treatment plant. There, it goes through several steps to become clean again. First, large items like sticks and plastic are removed. Then, in the primary treatment, oils and greases float to the top, while solids sink to the bottom. Next, bacteria help bre
