All articles tagged with #environmental remediation
Researchers at Texas A&M tested controlled fire whirls (fire tornadoes) as a method to burn oil spills more quickly and with less soot than current in-situ burning, achieving up to 95% fuel burn-off with 40% less soot in a 17‑foot-tall fire whirl; the concept is in early stages and aims to speed cleanup while protecting coastlines, pending further research on practicality and environmental impact.
Waxworms can eat and break down plastic, specifically polyethylene, thanks to enzymes in their saliva, and they store the plastic as body fat. However, a diet solely of plastic shortens their lives and reduces their mass, making them unsuitable for direct environmental cleanup. Researchers see potential in re-engineering their plastic-degrading pathways or using them in controlled, co-supplemented environments for plastic waste management and possibly producing insect biomass for commercial use.
Researchers have discovered that the molecule S-adenosyl-L-methionine (SAM) is a key player in the microbial production of methylmercury, a highly toxic form of mercury that accumulates in fish and poses significant health risks. Using advanced X-ray spectroscopy at the Stanford Synchrotron Radiation Lightsource, the study identified SAM as the methyl donor in the conversion process, challenging previous assumptions. This finding could inform new strategies for environmental remediation of methylmercury contamination.
In the Madre de Dios region of Peru, a nonprofit group called Pure Earth is working with miners to restore the Amazon rainforest that was devastated by illegal gold mining. By planting saplings and using techniques to regenerate the soil, they are successfully reviving the once-denuded landscape. This effort not only aims to restore the forest but also mitigate the impact of mercury contamination caused by the mining. Pure Earth is also teaching miners responsible gold extraction methods to reduce environmental harm, offering hope for a sustainable future in the region.
One year after a Norfolk Southern freight train derailed in East Palestine, Ohio, residents and business owners still express deep concerns about safety and health risks. While the company's CEO acknowledges progress and investments in environmental remediation and community support, some locals remain skeptical and seek greater accountability. Lawsuits have been filed against Norfolk Southern, and residents continue to worry about long-term health effects and the safety of their community.
Researchers have developed a material using nickel and cobalt atoms with tailored electronic structures to selectively oxidize urea in an electrochemical reaction, potentially enabling the conversion of urea from water into hydrogen gas. This breakthrough could help address the challenge of urea-rich agricultural runoff and municipal wastewater discharge, which cause environmental harm, while also offering a more energy-efficient and economical method for hydrogen production. The study highlights the importance of tuning valence charges for designing high-performance and selective electrocatalysts, with potential applications in environmental remediation and the water-energy nexus.