The global transition to a circular economy calls for research and development on
technologies facilitating sustainable resource recovery from wastes and by-products. Metal …

Bioleaching (microbial leaching), being an economical and environmental friendly process,
is investigated extensively for metal extraction from secondary solid wastes, viz., electronic …

The disposal of hazardous waste of any form has become a great concern for the industrial
sector due to increased environmental awareness. The increase in usage of …

Nickel is an important metal, heavily utilized in industry mainly due to its anticorrosion
properties. As a consequence, nickel containing wastes such as spent batteries and …

The increasing demand of different essential metals as a consequence of the development
of new technologies, especially in the so called “low carbon technologies” require the …

Due to rapid industrialization the demand for heavy metals is ever increasing, but the
reserves of high-grade ores are diminishing. Therefore there is a need to explore alternative …

Recovery of valuable metals such as cobalt, molybdenum, nickel, and vanadium from spent
catalysts has attracted much attention owing to the gradual depletion of high-grade ores. In …

Cobalt demand has witnessed tremendous growth in recent years due to its wide utilization
in many critical industries. However, more than half the world's demand for cobalt is supplied …

Research on biohydrometallurgy of secondary metal resources is primarily focused on the
leaching of valuable metals. For secondary metal resources biological processing can be an …

Microbial leaching via biocyanidation process enables efficient extraction of precious metals
from low-grade ores and increases attention in mineral industries for applying green and …