Copper ores are becoming bioleaching. bioleaching. scarce and new ways of extracting copper from Evaluate the impacts and Include percentage of ores include phytomining benefits of biological extracted, concentration of and bioleaching. These methods of extracting global warming gases methods avoid traditional metal. released, amount of mining methods of digging, electricity used etc. moving and disposing of Use this data in an large amounts of rock. evaluation. Phytomining uses plants to It may be possible to model absorb metal compounds. phytomining in the The plants are harvested and laboratory by watering then burned to produce ash geraniums with dilute copper that contains metal sulphate for a period of time. compounds. The leaves can be burnt and copper can be extracted from the ash by rinsing in Bioleaching uses bacteria to dilute hydrochloric acid and produce leachate solutions electrolysing the solution. that contain metal compounds. The metal compounds can be processed to obtain the metal. For example, copper can be obtained from solutions of copper compounds by displacement using scrap iron or by electrolysis.
Copper ores are becoming scarce and new ways of extracting copper from ores include phytomining and bioleaching. These methods avoid traditional mining methods of digging, moving and disposing of large amounts of rock. Phytomining uses plants to absorb metal compounds. The plants are harvested and then burned to produce ash that contains metal compounds. Bioleaching uses bacteria to produce leachate solutions that contain metal compounds. The metal compounds can be processed to obtain the metal. For example, copper can be obtained from solutions of copper compounds by displacement using scrap iron or by electrolysis. bioleaching. Evaluate the impacts and benefits of biological methods of extracting metal. bioleaching. Include percentage of extracted, concentration of global warming gases released, amount of electricity used etc. Use this data in an evaluation. It may be possible to model phytomining in the laboratory by watering geraniums with dilute copper sulphate for a period of time. The leaves can be burnt and copper can be extracted from the ash by rinsing in dilute hydrochloric acid and electrolysing the solution.
AQA-8464-SOW-RES.DOCX