What is the difference between Phytomining and Phytoextraction?

Phytoextraction (phytomining) Plants absorb mineral ions through their roots. Phytoextraction makes use of this: 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.

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 does Phytostimulation mean?

Phytostimulation, also referred to as enhanced rhizosphere biodegradation, rhizodegradation, or plant-assisted bioremediation/degradation, is the breakdown of organic contaminants in the soil via enhanced microbial activity in the plant root zone or rhizosphere.

What is meant by Phytostabilization?

Phytostabilization involves the reduction of the mobility of heavy metals in soil. Immobilization of metals can be accomplished by decreasing wind-blown dust, minimizing soil erosion, and reducing contaminant solubility or bioavailability to the food chain.

Why is Phytomining and bioleaching used?

Phytoextraction and bioleaching are principally used for copper extraction due to the high global demand for copper, but these methods can be applied to other metals.

What is bioleaching in biotechnology?

Bioleaching is a part of microbial mining. In microbial leaching or bioleaching metals can be extracted from large quantities of low grade ores This process has been used for centuries to recover copper form the drainage water of mines the role of microbes in the bioleaching came into notice some 40 years ago.

Which of the following phytoremediation process is also called Phytotransformation?

Phytodegradation (also called phytotransformation) uses plants or microorganisms to degrade organic pollutants in the soil or within the body of the plant.

What is the meaning of Rhizofiltration?

Rhizofiltration is the adsorption onto plant roots or absorption into plant roots of contaminants that are in solution surrounding the root zone (rhizosphere). Rhizofiltration is used to decontaminate groundwater. Plants are grown in greenhouses in water instead of soil.

What is phyto degradation?

Phytodegradation involves the degradation of organic contaminants directly, through the release of enzymes from roots, or through metabolic activities within plant tissues (Figure 3B). In phytodegradation organic contaminants are taken up by roots and metabolized in plant tissues to less toxic substances.

Why is bioleaching used?

Bioleaching can stabilise sulphate toxins from the mine without causing harm to the environment. Poisonous sulfur dioxide emissions harm the environment and can cause health problems for miners, and bioleaching avoids this process entirely. Bioleaching is more cost-effective than smelting processes.

Why is Phytomining used?

Phytomining is used to extract copper from soil containing its ore. Phytomining is slow, but it: reduces the need to obtain new ore by mining. conserves limited supplies of more valuable ores with higher metal content.