Nowadays, due to fast global industrial progress and near diminution of high-grade ore
reserves, there has been massive call to cost-effectively process the resources of low-grade …

Nowadays, large amount of municipal solid waste is because of electrical scraps (ie waste
electrical and electronic equipment) that contain large quantities of electrical conductive …

Mine tailings often contain significant amounts of metals and sulfide, many traditional
operations used to minerals was not as good as those currently available. This study …

Low kinetic is one of the most important disadvantages of bioleaching. The leaching rate can
be increased by employing thermophilic microorganisms. In this research, the moderate …

Globally, the amounts of metal ore deposits have been declining, so the research directions
investigating the extraction of metals from materials that are classified as waste are gaining …

Recycling of lithium-ion batteries (LIBs) is essential not only to protect the environment but
also to recover valuable metals, such as lithium and cobalt. The effect of ferrous (Fe 2+) has …

During the process of bioleaching, lead (Pb) recovery is low. This low recovery is caused by
a problem with the bioleaching technique. This research investigated the bioleaching …

Current paper introduces the iron scrap as a sustainable, economic and efficient reducing
agent for cobalt, nickel, and lithium leaching from waste lithium ion batteries (LIBs). In this …

The primary zinc ore in the world is sphalerite, and roasting-leaching-electrowinning (RLE)
is the most typical method of processing. This method has different disadvantages, and …

The high amount of base metals poses an important challenge in gold bioleaching from
spent printed circuit boards (PCBs). This study aims to investigate the bioleaching of …