Red mud, the leftover sludge from aluminum production, is infamous for its high pH and toxic metals. Left untreated, it can seep into soil or water, creating long-term damage. Researchers explored how to turn this industrial headache into a useful ingredient for road mix. They designed a three-step
Scientists tested a new type of concrete made mostly from red mud, a leftover from aluminum production. They wanted to see how long it could last in salty water and when it gets wet and dry over and over. Instead of just watching if it cracked or broke, they measured how strong it stayed, how easily
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
In many parts of western Iran, farmers produce a lot of crop and orchard leftovers that can harm the environment if not handled properly. A new study looked at why these farmers decide to recycle or ignore that waste, using two well‑known theories about human behavior. The research combined the T
Every year, billions of used alkaline batteries end up in landfills, leaking harmful metals like zinc and manganese. Instead of just chucking them away, scientists found a clever way to give these batteries a second job. They turned battery scrap into tiny particles that can purify dirty water under
Short‑chain and medium‑chain chlorinated paraffins, common in plastics and metal‑working fluids, have become a hot topic because they stick around in the environment, travel far, and can build up in living things. Long‑chain variants are less studied but may also be a threat. In China’s Guiyu, a tow
The world's hunger for gold is growing, but the Earth's supply is running low. This has sparked a race to find new ways to get gold, like recycling old electronics and pulling it from seawater. But there's a big problem: finding a way to pull out tiny amounts of gold from messy water mixtures is sup
The European Union has been exploring how foreign direct investment (FDI) and energy use affect the recycling rates across its member states from 2000 to 2021. Interestingly, money coming in from other countries (inflow) can boost local productivity but might cut down on recycling efforts. This is b
Imagine turning something as mundane as rice husk ash into something incredibly useful! Scientists have figured out a way to mix rice husk ash with polypropylene fibers and a special alkaline solution to create soil that can withstand more pressure and protect against erosion much better than regula
Trying to recycle waste polyvinyl chloride (PVC) plastics is tough because it can create hazardous stuff, like polychlorinated biphenyls. Researchers have come up with a cool new way to fix this issue. They use sunlight to heat up and convert PVC plastics into useful carbon materials. This process i
