International Journal of Botany Studies


International Journal of Botany Studies


International Journal of Botany Studies
International Journal of Botany Studies
Vol. 6, Issue 2 (2021)

Biosorption of lead ions from aqueous solutions by using dead biomass of Bacillus subtilis


Vinamrata Ponia, Seema Bhadauria, Shumailah Ishtiyaq, Harsh Kumar, Vishwajeet Singh

Exaggeration of heavy metal toxicants in aquatic systems arises as an alarming situation and emanating as a serious threat to all life forms. This study examines the potential of Bacillus subtilis biomass for Lead metal ions biosorption from contaminated aqueous media. Biosorption efficiency was determined in batch experiments and the metal concentration was analyzed by using (Atomic Absorption Spectrometry). The favorable optimum conditions for maximum removal (83.46 %) of Lead ions from 100 ml solution were obtained at pH 6, biomass dosage of 3 mg/ml, temperature 300C and 20 mg/L of lead concentration at 80 minutes of contact time. The models Langmuir and Freundlich isotherm were determined for Lead metal ions adsorption by Bacillus subtilis. The adsorption experimental data was best fitted for Langmuir model (R2 = 0.99892). The result indicates that Bacillus subtilis emerging as an efficient sorbent for the remediation of Lead metal ions from aquatic environments.
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