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PHYTOREMEDIATION POTENTIAL OF VETIVER GRASS IRRIGATED WITH WASTEWATER FOR TREATMENT OF METAL CONTAMINATED SOIL
Kafil, M., S. Boroomand Nasab, H. Moazed, and A. Bhatnagar.
International Journal of Phytoremediation 21(2):92-100(2019)

A field experiment was conducted to understand the potential of vetiver grass (Vetiveria zizanioides) in heavy metal uptake from the soil and wastewater. Four main irrigation treatments were applied: T1 (treated industrial wastewater), T2 (1:1 ratio of municipal:industrial wastewater), T3 (treated municipal wastewater), and T4 (fresh water). The effect of arbuscular mycorrhizal fungus, Glomus mosseae, on plant growth and heavy metal concentration was also evaluated. Three main criteria—bioconcentration factor, translocation factor, and heavy metal uptake—were applied to assess the potential of vetiver grass in accumulation and translocation of heavy metals to aerial parts. The highest concentration of heavy metals was found in plants and soils irrigated with T1 treatment followed by T2, T3, and T4 (lowest concentrations). Irrigation with treated municipal wastewater led to a significant increase in plant biomass and heavy metal uptake compared to other treatments. In T1 treatment (industrial wastewater), a significant decrease in Zn, Fe, Cu, Cd, and Pb concentrations was observed in vetiver-planted soil as compared to no-plant treatment. https://www.tandfonline.com/eprint/bVTMrbnVAxZymweu9rvZ/full



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