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GCSE Chemistry · key term
The use of bacteria to release metal compounds from ores or waste material, commonly producing a solution called a leachate.
Used by OCR
Paper 1 (Foundation), Paper 2 (Foundation), Paper 3 (Higher), Paper 4 (Higher)
Revise: Biological metal extractionOCR focuses on two alternatives for extracting relatively unreactive metals: bacterial extraction and phytoextraction. These methods can also recover metals from waste material rather than requiring newly mined ore.
Keep the methods distinct: plants absorb metal ions in phytoextraction; bacteria help release metal compounds into a leachate in bacterial extraction.
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