Bioremoval of Heavy Metals (Mn, Pb, Zn) from Wastewater Chemistry Laboratory, Satya Wacana Christian University Using Water Fern (Azollapinnata R.Br.)
Abstract: The objective of
this study were: Firstly,to determine the optimal absorption ofmanganese (Mn),
zinc (Zn) and lead (Pb) based on determined the optimum of Water Fern (A.pinnata)
population densities, and secondly to determine the effectiveness of Mn, Zn and
Pb absorption by different population densities of A. pinnata. The waste water
obtained from Chemistry Laboratory, Satya Wacana Christian University,
Salatiga. Heavy metals analysed inplants and in waste water were measured using
AAS (Perkin Elmer, 3110). Data were analysedby Randomized Completely Block
Design (RCBD), 6 treatments and 4 replications. As thetreatments were various
percentage surface area coverage of the plastic cups by A. pinnata, which were:
0%, 12.5%, 25%, 37.5%, 50%, and 62.5%, respectively. To test the differencesbetween
treatment means, the Honestly Significant of Differences (HSD) were used with
5%level of significant. The result of this study showed that : Firstly, optimal
absorption of manganese (Mn), zinc (Zn), and lead (Pb), respectively, could be
performed by 62.5% population densities of A. pinnata. Secondly, within 4 days
effectively of A. pinnata absorbheavy metals were as follow: Mn 95.11%; Pb
90.90%, and Zn 87.04%.
Author: Hartini, L B S Mansawan, A I Kristijanto
Journal Code: jpkimiagg170012
