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Jan 20, 2015#183; The technique of phytomining involves growing a crop of a metalhyperaccumulating plant species, harvesting thebiomass and burning it to produce a bioore In the first phytomining experiment, it was found that a yield of 100 kg/ha of sulphurfree Ni could be produced.
Phytomining uses plants to absorb metal compounds and the plants are then harvested and burned to produce ash that contains a more concentrated raw material of the metal compounds. From this ash the metal can then be extracted. Bioleaching uses bacteria to produce leachate solutions that contain metal compounds. The metal compounds can be processed to obtain the metal copper can be obtained
Phytomining and Bioleaching. Metal ores are a finite resource which are in limited supply. New methods of copper extraction exploit waste ores and low grade ores. Phytomining involves growing plants on top of low grade ores. The plants absorb copper ions through their roots The plants are then burnt to ashes containing copper ions.
Phytoming and Bioleaching Extraction of Copper from Ores Bioleaching Advantages We can use waste ores, reducing the impact of mining on the environment. Energy efficient, using almost half as much energy as traditional extraction. No gases that will harm the environment are
GCSE CHEMISTRY . Bioleaching and phytomining are increasingly used to extract copper from low grade ores (see below). The traditional method of extraction is to heat the copper sulfide. Copper(II) sulfide gives copper and sulfur dioxide during thermal decomposition.
Bioleaching is more costeffective than smelting processes. Some Bioleaching offers a different way to extract valuable metals from lowgrade ores that have already been processed. The Commercial Process. Commercial metal extraction is a quicker process that can be optimized through humidity, potential hydrogen (pH), temperature, and chemical
Core Chemistry GCSE Revision Booklet . Core Chemistry GCSE Revision Booklet Don''t forget to add dates to your checklist as you complete each Briefly explain the processes of Phytomining and Bioleaching. Phytomining Bioleaching Benefits of recycling metals: ECONOMIC Benefits of recycling metals: ENVIRONMENTAL . Get Price
Bioleaching and phytomining are increasingly used to extract copper from low grade ores (see below). Phytomining and Bioleaching GCSE Triple Award. Phytomining involves growing plants on top of low grade ores. The plants absorb copper ions through their roots The plants are then burnt to ashes containing copper ions.
Another way of using phytomining is to remove toxic metals from contaminated ground. If we grow hyperaccumulators on contaminated ground, they will remove the toxic substances from the soil, making it safe to use again. Bioleaching uses bacteria, rather than plants, to remove metals from compounds. Some bacteria can extract energy from the chemical bonds in sulfate compounds, such as copper
Phytomining and Bioleaching GCSE Triple Award Revision Metal ores are a finite resource which are in limited methods of copper extraction exploit waste ores and low grade ores.; Phytomining involves growing plants on top of low grade plants absorb copper ions through their roots The plants are then burnt to ashes containing copper ions are leached from the ash using sulfuric acid.
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