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What are the stages of Phytomining?

What are the stages of Phytomining?

Phytomining has several stages:

  • Plants are grown in an area with low grade ores where they take in the minerals through their roots.
  • The plants are then burned.
  • The ash is added to water and the minerals dissolve in that water.
  • Electrolysis is then used to extract the metal from the mineral.

What is the method of Phytomining?

Phytoextraction (phytomining) plants are grown in soil that contains low grade ore. the plants absorb metal ions through their roots and concentrate these ions in their cells. the plants are harvested and burnt. the ash left behind contains metal compounds.

What methods are used to extract metals?

There are 3 main methods of extracting metals from their ore. They are reduction of the ore with carbon, reduction of the molten ore by electrolysis, and reduction of the ore with a more reactive metal.

Is Phytomining effective technique?

Phytomining is one of the environmentally friendly, mineral extraction technique which helps in the hyperaccumulator plant species at different areas of the globe. This technique helps in increasing the economic value of low-grade ores (Ha. Hoang et al., 2011).

Where is Phytomining used?

Gold revenue at each location is helping promote management of mercury (Indonesia) and arsenic (China) in mine waste, while in Mexico, phytomining is being used as a mechanism to create employment in poor areas.

What are the three major steps involved in extraction of a metal after its ore is mined?

The conversion of metals from their ores to more useful forms is called metallurgy, which consists of three general steps: mining, separation and concentration, and reduction.

What is the process of extracting metal from their ore?

The process of extracting metals from their ores is called metallurgy. The process employed in the extraction of the ore depends on the nature of the ore and the impurities present in it.

How does Phytomining obtain copper?

In the future, when supplies of higher grade ores have run out, metals might be extracted by burning the plants to produce ash. The ash would contain a higher concentration of metal than the soil. Phytomining is used to extract copper from soil containing its ore.

What is Phytotransformation process?

Phytotransformation, also referred to as phytodegradation, is the breakdown of organic contaminants sequestered by plants via: (1) metabolic processes within the plant; or (2) the effect of compounds, such as enzymes, produced by the plant.

What plants are used in Phytomining?

Brassica juncea (Indian mustard) and Berkheya coddii (Asteraceae) are commonly used in the phytomining of NMs (Table 2).

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