Printed circuit boards (PCBs) represent one of the most complicated and valuable
components in electric and electronic equipment (EEE). Waste PCBs (WPCBs) contain more …

Since the birth of cyanidation, it has been dominant in the gold extraction industry. Recently,
with the increasing awareness of environmental hazards and potential risks posed by the …

Glycine has recently gained plenty of attention in gold processing as an alternative lixiviant
to cyanide due to its non-toxicity, efficiency in metal dissolution as well as selectivity for …

Waste printed circuit boards (WPCBs) are a complicated and valuable fraction of electric and
electronic waste. The recycling of them is critical to avoid environmental pollutions and to …

A novel eco-friendly synthetic gold lixiviant (Jinchan) was used to recover gold from gold
ores. Ultrasound was used to improve gold leaching efficiency and recovery percentage …

Gold recovery from limited global resources has gained increasing attention due to a
growing demand for gold and heightened social awareness of the high toxicity and the …

Gold is mainly extracted by cyanidation; however, cyanide is not only highly toxic to
organisms but is also not a very effective lixiviant for refractory gold ores. Environmentally …

Electronic waste (E-waste) is accumulating rapidly globally and pose a significant
environmental challenge. One of the ways to cover the cost of waste processing (in addition …

The past decade has seen significant interest in non-conventional lixiviants, particularly the
growing interest in organic acids and amino acids. Of the amino acids, glycine has much …

E-waste has become a global risk to the environment and humans due to the improper
disposal. Recently, a novel approach has been reported to effectively extract copper (Cu) …