e-ISSN 2231-8542
ISSN 1511-3701
Nur-Nazirah, P. M., Arifin, A., Shamshuddin, J., Rezaul, K., Muhammad-Nazrin, Mohd-Hadi, A. and Aiza-Shaliha
Pertanika Journal of Tropical Agricultural Science, Volume 40, Issue 3, August 2017
Keywords: Heavy metals, manganese, phytoremediation, sewage sludge
Published on: 19 Jul 2017
The cost to dispose of sludge is very high, and Malaysia usually treats it by composting. However, composting is not a feasible method because it is time consuming. The application of sewage sludge on cropland is economical method because it provides the plant nutrients. However, it has a serious impact on the plants, animal and environment due to high concentration of heavy metals. Therefore, phytoremediation is a green technology to remove pollutants especially heavy metals from contaminated soil. This study was conducted to determine the potential of Ricinus communis to remove heavy metal in soil. The seedlings were planted on six different planting media T0 (100% soil-Control), T2 (80% soil + 20% sewage sludge), T3 (60% soil + 40 % sewage sludge), T4 (40% soil + 60% sewage sludge), T5 (20% soil + 80% sewage sludge) and T6 (100% sewage sludge). The highest accumulation of Mn was observed in leaves. Ricinus communis were found to be suitable as phytoremediators to clean heavy metals especially Mn as its TF value was higher than BCF.
ISSN 1511-3701
e-ISSN 2231-8542