ABSTRACT

E-waste is major environmental pollutants when present in soil and show potential toxic effects on growth and development in plants and animals. E-waste contains a number of toxic materials like lead, mercury, cadmium, hexavalent chromium and brominated flam. Most of the metal tolerant microbes as used for the remediation, this point of view, and the present investigations were carried out to isolate metal tolerant bacterial species from the E-waste contaminated sites on Trichy area. Totally 44 colonies were observed from 3 soil samples, among them 6 bacterial genera and 9 species were obtained. Among the 44 isolates, single isolate was tolerating up to 14mM concentration of lead. This isolate was confirmed as Pseudomonas stutzeri by using 16srRNA sequence. The bioaccumulation of started with media optimization and results showed maximum accumulation of heavy metal (lead) at 37°C temperature, pH 7.0, lactose and yeast extract as carbon and nitrogen source respectively. The results demonstrated that under such ideal condition bioaccumulation of Pb by Pseudomonas stutzeri was found to be at a maximum of 1144?g accounting to 39.4%. Keywords: - E-waste, Metal, Lead, Bioaccumulation, Pseudomonas stutzeri
Publication date: 01/05/21

https://ijbpas.com/pdf/2021/May/MS_IJBPAS_2021_5458.pdf

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https://doi.org/10.31032/IJBPAS/2021/10.5.5458