Researchers Are Harvesting Precious Metals From Industrial Waste By MINING.com - Dec 26, 2020, 10:00 AM CST Researchers from Kanazawa University in Japan have developed a mechanism to improve the recovery of silver and palladium ions from aqueous acidic waste. In a paper published in the Chemical Engineering Journal, the scientists said that the process they developed involves chemically modifying ultrasmall particles of cellulose – an abundant and nontoxic biopolymer – to selec