Up to a billion tons of waste potentially burned in the open every year

Credit: Aline Tong/Shutterstock As much as one billion tons of waste could be burned in open and uncontrolled fires around the world each year, according to one estimate – close to half of all the municipal solid waste generated on Earth. But even if the true total is a fraction of that amount, the impact […]

Catalyst transforms plastic waste to valuable ingredients at low temperature

IMAGE: Graphical abstract view more  Credit: Tamura/Osaka City University For the first time, researchers have used a novel catalyst process to recycle a type of plastic found in everything from grocery bags and food packaging to toys and electronics into liquid fuels and wax. The team published their results on Dec. 10 in Applied Catalysis B: […]

TPU chemists convert plastic bottle waste into insecticide sorbent

Scientists of Tomsk Polytechnic University proposed a method to create a sorbent for imidacloprid insecticide removal from water. The sorbent belongs to metal-organic frameworks, a class of non-conventional materials. The TPU chemists grew such a framework right on polyethylene terephthalate (PET) used to produce regular plastic bottles. The method is quite simple and allows converting […]

Simple and cost-effective extraction of rare metals from industrial waste

Credit: CC0 Public Domain Many rare metals are in scarce supply, yet demand for use in electronics, medical instrumentation, and other purposes continues to increase. As waste, these metals pollute the environment and harm human health. Ideally, we would recycle the metals from waste for reuse. Unfortunately, current recycling methods are some combination of complex, […]

Simple and cost-effective extraction of rare metals from industrial waste

Kanazawa, Japan – Many rare metals are in scarce supply, yet demand for use in electronics, medical instrumentation, and other purposes continues to increase. As waste, these metals pollute the environment and harm human health. Ideally, we would recycle the metals from waste for reuse. Unfortunately, current recycling methods are some combination of complex, expensive, […]

Plastic waste forms huge, deadly masses in camel guts

Marcus Eriksen was studying plastic pollution in the Arabian Gulf when he met camel expert Ulrich Wernery. “[Ulrich] said, ‘You want to see plastic? Come with me.’ So we went deep into the desert,” Eriksen recalls. Before long, they spotted a camel skeleton and began to dig through sand and bones. “We unearthed this mass […]

Multiple semiconductor type switching to boost thermoelectric conversion of waste heat

Tin monoselenide (SnSe), when doped with antimony (Sb), can make for a suitable candidate for the design of thermoelectric conversion elements (p-n junction device). Credit: Tokyo Tech In recent years, the energy consumption in developed countries has been rather wasteful. Nearly two-thirds of the total energy is typically discarded into the environment as “waste heat,” […]

China to end all waste imports on Jan 1

China for years has been the world’s largest importer of garbage—but as of 2021 it will end waste imports, according to Xinhua China will ban all waste imports from January 1, 2021, state media reported Friday, marking the culmination of a three-year phase-out of accepting overseas junk. Since the 1980s the country has imported solid […]

Creating energy and valuable products from fruit waste

Credit: Pixabay/CC0 Public Domain Waste from the citrus industry can provide biogas and valuable products for a range of industries. This has been shown by Lukitawesa, who recently defended his doctoral thesis at the Department of Resource Recovery and Building Technology at the University of Borås. Climate change has increased the need for resource recycling […]

Minimal waste production is a fundamental law for animal locomotion

Is there a unifying principle underpinning animal locomotion in its rich diversity? A thermodynamic analysis performed by a Skoltech professor and his French collaborators at Université Paris Diderot, Université Paris Saclay, and the Muséum national d’Histoire Naturelle, shows why and how waste minimization prevails on efficiency or power maximization when it comes to free locomotion […]