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首页> 外文期刊>Procedia - Social and Behavioral Sciences >Development of an Integrated Model to Recover Precious Metals from Electronic Scrap - A Novel Strategy for E-Waste Management
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Development of an Integrated Model to Recover Precious Metals from Electronic Scrap - A Novel Strategy for E-Waste Management

机译：开发从电子废料中回收贵金属的集成模型-电子废物管理的新策略

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The authors in this paper makes an attempt to propose a novel integrated model for the recovery of precious metals (gold - Au and silver - Ag) for the management of e-waste using a combination of hydrometallurgical (chemical) and biometallurgical (low cost biomass) processes. Chemical process involves leaching of gold/silver from electronic scrap using cyanide. The leachate containing gold/silver complex thus obtained is then subjected to biosorption process using low-cost biomass. The model proposed by us will help to strengthen the ‘processing’ part of the functional elements employed for proficient e-waste management. Feasibility study was also conducted to explore the possibility of removal/recovery of silver-cyanide using low-cost biosorbents. Results showed that Eicchornia root biomass and Waste tea powder were efficient biosorbents for leached silver-cyanide from electronic scrap. The concentrated silver-cyanide recovered could further be used as an input material for electroplating industry.
机译：本文的作者尝试通过湿法冶金（化学）和生物冶金（低成本生物质）的组合，提出一种用于电子废物管理的贵金属（金-金和银-银）回收的新型集成模型。 ）流程。化学过程涉及使用氰化物从电子废料中浸出金/银。然后使用低成本生物质对由此获得的含浸出液的金/银络合物进行生物吸附过程。我们提出的模型将有助于加强用于熟练电子废物管理的功能元素的“处理”部分。还进行了可行性研究，以探索使用低成本生物吸附剂去除/回收氰化银的可能性。结果表明，刺五加根生物量和废茶粉是从电子废料中浸出氰化银的有效生物吸附剂。回收的浓缩氰化银可进一步用作电镀工业的输入材料。

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