电解回收废定影液中银的研究

Research on Silver Reclamation from Waste Fixative by Method of Electrolysis

文章以广州某医院的废定影液作试料,采用电解法回收废定影液的银。实验表明,在极距为10 mm,电流密度为0.25 A/dm2,电解时间为2 h的条件下,银的回收率可达到90%。

In the paper, waste fixative of a hospital in Guangzhou taken as material and method of electrolysis was used to reclaim silver from waste fixative. Experiment showed that, under the conditions of 10 mm of polar distance, 0.25 A/dm2 of current density and 2 h of electrolysis time, silver reclamation rate could reach 90 %.