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Article

Pretreatment of e-waste and mutation of alkali-tolerant cyanogenic bacteria promote gold biorecovery.

Bioresource technology - 1 Jan 2014

Natarajan Gayathri, Ting Yen-Peng

Abstract excerpt

Gold was recovered from electronic scrap material (ESM) as gold-cyanide complex by Chromobacterium violaceum which produces cyanide as a secondary metabolite. The effect of pretreatment and mutation of alkali-tolerant bacteria was examined. Pretreatment dissolved most of the base metals, thereby reducing competition for the cyanide ion from other metals. As the pKa of HCN is 9.3, alkaline pH increases the cyanide...

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Identifiers

PMID: 24291311
DOI: 10.1016/j.biortech.2013.10.108

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PubMed metadata and Literature Corpus relationships. Corpus snapshot updated 7 Sept 2026. Manifest publication-graph-cohort-2026-09-08.1.

Source receipt: pubmed, retrieved 7 Sept 2026.

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