Phytoremediation of Lead-Contaminated Soil by Using Vetiver Grass (Vetiveria zizanioides L.)

Abdallah, Rawidh Said; Rachmansyah, Arief; Yanuwiadi, Bagyo

doi:10.21776/ub.jels.2019.009.01.09

Cited by 2 publications

(1 citation statement)

References 8 publications

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“…The accumulation of all heavy metals in Vetiver roots is much higher than in shoots 7,[28][29][30][31][32] . Because it is highly tolerant to many heavy metals 33 . Mn was found maximum in roots of Vetiver grass than the shoots.…”

Section: Dry Weight Of Shoots and Roots After Treatmentsmentioning

confidence: 99%

Phytoaccumulation of heavy metals from municipal solid waste leachate using different grasses under hydroponic condition

Hassan

Haleem

Baig

et al. 2020

Sci Rep

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Grasses have been used widely to remediate contaminants present in domestic wastewater, but leachate generated from municipal solid waste that usually contain some concentrations of heavy metals has never been reported to be treated with grasses, especially Rhodes grass. A series of experiments was performed to investigate the contaminant uptake from municipal solid waste leachate by Chloris gayana (Rhodes grass) grown in combination with two commonly available grass varieties namely Vetiveria zizanioides (Vetiver grass) and Pennisetum purpureum (Elephant grass). Leachate used for the experiments had high values for chemical oxygen demand (5 g/L), pH (8.5), electrical conductivity (9.0 mS/cm), nitrates (182.1 mg/L), phosphates 6.4 mg/L along with heavy metals i.e. copper, zinc and manganese. Different dilutions of leachate ranging from 0 to 100% were applied in batches and their result showed that collectively all the grasses reduced overall contaminant concentrations. These were reported for chemical oxygen demand, electrical conductivity, nitrates, and phosphates reduced up to 67, 94, 94, and 73%, respectively. Metals uptake by grasses also showed a significant decrease in applied dose i.e. zinc (97%), copper (89%), and manganese (89%). Plant analysis showed that all grasses showed preference to heavy metals uptake e.g. Rhodes grass favoured up taking zinc, Elephant grass for copper and Vetiver grass preferred manganese. Overall growth performance of Rhodes grass was better in dilute leachate, whereas in more concentrated leachate, Rhodes grass did not perform better and production of biomass decreased. In Vetiver grass, root and shoot lengths decreased with increasing leachate strength, but the biomass did not change significantly.

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