REMEDIATION OF ZINC CONTAMINATED SOIL USING Acalypha wilkesiana | Journal of Global Ecology and ...

A study was planned to assess Acalypha wilkesiana's phytoextraction capacity for zinc (Zn) remediation. A series of pot experiments were carried out. Acalypha wilkesiana stems were planted in five kilogrammes of soil with 0 ppm, 5 ppm, 10 ppm, 15 ppm, 20 ppm, and 25 ppm of Zn in each plastic container. The research took place over the course of 12 weeks in natural settings. Standard procedures were used to determine the soil's physicochemical qualities. When comparing polluted soil remediated with Acalypha wilkesiana to zinc-free soil, the results revealed that pH, phosphorus, and moisture content increased but nitrogen and organic carbon content declined. After 12 weeks, the plant's leaves, stems, and roots were examined for Zn uptake. When compared to concentrations in the roots, the plant soaked up significant amounts of Zn in the stem (6.21 ppm) and leaves (8.23 ppm) (6.08 ppm). The metal bioconcentration factor (BCF) and translocation factor were used to evaluate the plants' phytoextraction capabilities (TF). After 12 weeks, the levels of Zn in the roots and shoots revealed that a larger bio-available pool of Zn was translocated from the root to the leaves and stem, in that sequence. The findings imply that the plant has phytoextraction capabilities and could be used to re-establish soil that has been contaminated with Zn.

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