PJB-2020-181
BIOSORPTION OF HEAVY METALS COPPER AND NICKEL BY VERBASCUM THAPSUS
Sajjad Ali Shah
Abstract
Bioremediation is critical need because heavy metals have different side effect on human health. For the biosorption studies we focused on easily available, green, and eco-friendly medicinal plant with low operational cost materials, namely: Verbascum Thapsus, commonly known as great mullein or common mullein. In this study we have Copper and Nickel as our metal of interest, widely used in various industries. The leaves of Verbascum thapsus were used as absorbant and first treated with A 1000 ppm stock solution of Cu II ions and then treated with stock solution of 2625 ppm of Ni(II) ions. Biosorption of two heavy metals namely Copper and Nickel were conducted using a common mullein Verbascum Thapsus. The Copper biosorption studies using Verbascum Thapsus resulted 90.74% of absorption at pH 5, temperature 40oC and biomass dosage of 1.50 g in 6 hours’ period of contact time. Similarly, the Nickel biosorption studies using Verbascum Thapsus resulted 99.92% absorption at temperature 35oC, pH 5 and biomass dosage of 1.25 g in 5 hours’ period of contact time. In this study we investigate the biosorption of cu (II) and nickel (II) through Verbascum Thapsus.
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