—Improper discharge of heavy metals such as
cadmium, copper, nickel, lead and zinc to the environment could
impose severe health and toxicological problems. Within
Malaysian context, Cu(II), Pb(II) and Zn(II) are the most
common heavy metals present in various industrial wastewater
effluents. The removal of Cu(II), Pb(II) and Zn(II) from water
bodies is of interest due to their high toxicity. Copper and lead
are classified as carcinogenic agents. Accumulation of zinc in
human and animal increases the risk of blood, nervous and
reproductive disorders. In this study, the ability of Kenaf Bast
fiber (KBF) adsorbent to sequester Cu(II), Pb(II) and Zn(II)
from synthetic solution with respect to solution pH, initial metal
concentration and adsorbent dosage was investigated. Both
single-metal and multi-metal system studies were carried out in
batch experiments. The adsorption equilibrium was analyzed by
Langmuir and Freundlich isotherm models. The biomass
adsorbent was characterized using Scanning Electron
Microscope (SEM), Energy Dispersive X-ray spectrometer
(EDX) and Fourier Transform Infrared Spectrometer (FTIR).
The optimum conditions of metals adsorption was found at pH
4.0 (Pb(II)) and pH 5.0 for both Cu(II), and Zn(II). The
maximum adsorption capacity estimated using Langmuir
isotherm model was in the order of Pb(II) (50.0 mg/g) > Cu(II)
(33.56 mg/g) > Zn(II) (13.68). The analysis of SEM, EDX and
FTIR proved metal ions uptake by the adsorbent. The result
highlights the significance of KBF as effective natural adsorbent
for Cu(II), Pb(II) and Zn(II) removal from water bodies.
—Heavy metals, kenaf bast fiber, single- and
multi-metal system, wastewater.
Ridwan Shamsudin and Hanisom Abdullah are with Biology Department,
Faculty of Science and Mathematics, Universiti Pendidikan Sultan Idris,
35900, Tg. Malim, Perak, Malaysia (e-mail: email@example.com).
Azlan Kamari is with Chemistry Department, Faculty of Science and
Mathematics, Universiti Pendidikan Sultan Idris, 35900, Tg. Malim, Perak,
Cite: Ridwan Shamsudin, Hanisom Abdullah, and Azlan Kamari, "Application of Kenaf Bast Fiber to Adsorb Cu(II), Pb(II) and Zn(II) in Aqueous Solution: Single- and Multi-metal Systems," International Journal of Environmental Science and Development vol. 7, no. 10, pp. 715-723, 2016.