Petroleum refining operations such as hydroprocessing and fluid catalytic cracking (FCC)
generate huge quantities of spent catalysts containing toxic and valuable metals (Ni, V, Mo …

Progressively and projected integration of rare earth metals (REMs) in modern technologies,
especially in the clean energy, consumer electronics, aerospace, automotive, and defense …

The management and prevention of environmental risks associated with spent
telecommunications printed circuit boards (STPCBs) is a concerning issue worldwide …

Despite the increased demand for resource recovery from spent lithium-ion batteries (LIBs),
low Mn leaching efficiencies have hindered the development of this technology. A novel …

Abstract Acidothiobacillus ferrooxidans (A. ferrooxidans), an iron-oxidizing bacteria oxidizes
Fe (II) to Fe (III), which is an excellent leaching agent to leach out rare earth elements …

Biohydrometallurgy recovers metals through microbially mediated processes and has been
traditionally applied for the extraction of base metals from low-grade sulfidic ores. New …

Environmentally appropriate economic recycling of spent automotive catalytic converters
(SACCs) is difficult due to their complexity. The prominent reason is the lack of knowledge …

The fluid catalytic cracking (FCC) process in petroleum refineries produces enormous
quantities of waste (spent) catalysts as solid waste. Due to stricter environmental …

Here, we report three spiropyran derivatives, which were then incorporated into poly
(caprolactone) electrospun fibers as a platform for sensing heavy metals. The materials …

Rare earth elements (REEs) play an important role in various high-tech technologies,
including renewable energy systems, electronics, and catalytic converters. The increasing …