@article{MAKHILLJEAS2019142218616,
    title = {Utilization of <i>Filopaludina sumatrensis&#146s</i> Shell as a Biosorbent for
Removing of Pb<sup>2+</sup> in Wastewater},
    journal = {Journal of Engineering and Applied Sciences},
    volume = {14},
    number = {22},
    pages = {8403-8407},
    year = {2019},
    issn = {1816-949x},
    doi = {jeasci.2019.8403.8407},
    url = {https://makhillpublications.co/view-article.php?issn=1816-949x&doi=jeasci.2019.8403.8407},
    author = {Ronbanchob},
    keywords = {isotherm,Freundlich isotherm,Biosorption,wastewater treatment,Pb2+,kinetics},
    abstract = {Filopaludina sumatrensis&#146;s shell was used as a low-cost sorbent for removing of Pb<sup>2+</sup> in synthetic
wastewater. The shell was burnt in aerobic conditions at 400, 500 and 600&deg;C using a furnace. The different burnt
shells were then compared with an unburnt shell for the efficiency of Pb<sup>2+</sup> removal at the 0.05 level of statistical
significance. The results showed that there were not any significant differences between sorption efficiency
of Pb<sup>2+</sup> from the unburnt shell and burnt shells at any temperatures for initial Pb<sup>2+</sup> concentration of 0.1 mM.
Meanwhile, at an initial Pb<sup>2+</sup> concentration of 1 mM, the burnt shell at 600&deg;C has less Pb<sup>2+</sup> sorption efficiency
than that of the other conditions. The unburnt shell was selected for the further study of sorption kinetics and
sorption isotherm. The pseudo second order kinetic model was suitable for the description of sorption kinetics.
Although, it took 20 and 30 min to reach equilibrium for experiments at initial Pb<sup>2+</sup> concentration of 1 and
0.1 mM, respectively. Biosorption isotherm data could be described with the Freundlich isotherm.}
    }