@article{E_T_Lin_D_Sh_T.O_2018, title={Biosorption of lead (II) from an aqueous solution using biosorbents prepared from water plants}, volume={18}, url={https://www.mongoliajol.info/index.php/MJC/article/view/937}, DOI={10.5564/mjc.v18i44.937}, abstractNote={Due to its toxicity causing serious health problems, persistence in the environment and non-biodegradability, lead (Pb) is considered as one of the most harmful metals on earth. In this study, dried aquatic plants as sorbents including <em>Nymphoides peltata</em> (NP), <em>Typha laxmannii</em> (TL), and <em>Eichhornia crassipes</em> (EC) were examined and compared to discover the best biosorption for Pb. The effect of physical and chemical parameters including pH (2.0–5.5), sorbent dosage (1–5 g/l), metal concentration (20–100 mg/l), and contact time (~240 min) were investigated to determine the optimal condition for Pb(II) biosorption. As a result, the optimum pH, sorbent dosage, and contact time were 5.0, 1 g/l, and 120 minutes, respectively. Pb<sup>2+</sup> biosorption data were found to follow the Langmuir isotherm model while the kinetic biosorption data followed pseudo-second-order model. The maximum biosorption capacity from Langmuir model was calculated as 63.3, 82.9, and 51.9 mg/g for EC, NP, and TL, respectively. All the results showed that biosorption efficiencies of Pb(II) by different biosorbents were in following order NP>EC>TL.}, number={44}, journal={Mongolian Journal of Chemistry}, author={E, Tseveendorj and T, Enkhdul and Lin, S and D, Dorj and Sh, Oyungerel and T.O, Soyol-Erdene}, year={2018}, month={Feb.}, pages={52–61} }