-Phytoremediation refers to the use of plants for cleaning up contaminants in soil, groundwater, surface water and air.
-It is a cost-effective and non-polluting way to remove toxic chemicals that contaminate soil and water and also it offers remediation of brownfield sites.
-Phytoremediation has several methodologies which includes
1.Phytoextraction or phytoconcentration : contaminant concentrated in roots, stem and foliage of plan.
2.Phytodegradation: plant enzymes help catalyze breakdown of the contaminant molecule.
3.Rhizosphere biodegradation: plant roots release nutrients to mircro-organisms which are active in
bio-degradation of the contaminant molecule.
4.Volatilization : transpiration of organics, selenium and mercury run through leaves of the plant
5.Stabilization: ant converts the contaminant into a form which is not bioavailable, or the plant prevents the spreading of a contaminant plume.
Applications of Phytoremediation
•The principal application of Phytoremediation is for lightly contaminated soils, sledges and waters where the material to be treated is at a shallow or medium depth and the area to be treated is large, so that agronomic techniques are economical and applicable for both planting and harvesting.
•Phytoremediation can be applied for producing energy from controlled combustion of harvested biomass
•Applied for harvesting valuable metals that are dispersed in soil.
• Applied for providing quick remediation of Brownfield sites.
-It is a cost-effective and non-polluting way to remove toxic chemicals that contaminate soil and water and also it offers remediation of brownfield sites.
-Phytoremediation has several methodologies which includes
1.Phytoextraction or phytoconcentration : contaminant concentrated in roots, stem and foliage of plan.
2.Phytodegradation: plant enzymes help catalyze breakdown of the contaminant molecule.
3.Rhizosphere biodegradation: plant roots release nutrients to mircro-organisms which are active in
bio-degradation of the contaminant molecule.
4.Volatilization : transpiration of organics, selenium and mercury run through leaves of the plant
5.Stabilization: ant converts the contaminant into a form which is not bioavailable, or the plant prevents the spreading of a contaminant plume.
Applications of Phytoremediation
•The principal application of Phytoremediation is for lightly contaminated soils, sledges and waters where the material to be treated is at a shallow or medium depth and the area to be treated is large, so that agronomic techniques are economical and applicable for both planting and harvesting.
•Phytoremediation can be applied for producing energy from controlled combustion of harvested biomass
•Applied for harvesting valuable metals that are dispersed in soil.
• Applied for providing quick remediation of Brownfield sites.
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