A serious environmental problem is associated with the accumulation of solid waste on the
Earth. Researchers are encouraged to find an efficient and sustainable method to recover …

This review paper explores the potential of bioleaching as a sustainable alternative for
recovering metals from solid matrices. With over 12 billion tons of solid waste annually …

Electroplating sludge is classified by environmental agencies as a hazardous waste, the
disposal of which can be a serious environmental concern. In the present study, the recovery …

Electronic waste (E-waste) generation is evaluated at 20–50 million tons, representing 1–
3% of the general waste generated yearly worldwide. The large quantities of outdated and …

The production of critical metals for emerging clean technologies also requires more
sustainable, cleaner and cost-effective processing options. The recovery of cobalt (Co) via …

The present study evaluates biopotential of Aspergillus niger and chemical potency of strong
organic and inorganic acids to leach out Al, Fe, Ti, Ni, V from spent fluid catalytic cracking …

Mobile phones are known as the most widely used electronic instruments, and an enormous
number of discarded mobile phones are generated. The present work used a pure culture of …

The current study evaluates the bio-potential of Aspergillus niger to leach out Nickel,
Vanadium from spent fluid catalytic cracking catalyst (SFCCC) and is compared with …

An efficient and rapid metal leaching process for solubilisation of heavy and precious metals
from waste printed circuit board (PCB) powder was investigated. The PCB powder was first …

The objective of the present study was to investigate the indirect bioleaching of low-grade
nickel limonite and saprolite ores using fungal metabolic organic acids generated by …