Assessment of Bacopa caroliniana to sequester landfill heavy metals contaminant via in vitro hybrid model system
Most of developing countries used to develop various technologies to decrease the percentage of heavy metals contaminant from landfill site such as incineration, solvent extraction, soil washing by using physical separation methods or chemical agents, solidification or stabilizatio...
| Main Authors: | , , , |
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| Format: | Conference or Workshop Item |
| Language: | English |
| Published: |
2015
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| Subjects: | |
| Online Access: | http://irep.iium.edu.my/45764/ http://irep.iium.edu.my/45764/1/45764.pdf |
| Summary: | Most of developing countries used to develop various technologies to decrease the
percentage of heavy metals contaminant from landfill site such as incineration, solvent extraction,
soil washing by using physical separation methods or chemical agents, solidification or
stabilization technology, indirect thermal treatment, soil venting, membrane technology and
industrial water treatment. However, these approaches are expensive, difficult to apply in huge
scale area and also may cause great environmental impact as it affects soil structure and fertility
and biological activity. Therefore, one of the effective approach to control this matter is by
using natural treatment. Phytoremediation is one of the natural ways for landfill treatment by
using plants and is proven to be an economically competitive and eco-friendly to the environment as
it does not require additional energy or substantial material just a small mechanical apparatus to
operate it. Therefore, the study aimed to evaluate heavy metals sequestration rate of Bacopa
caroliniana at three different concentrations ranging from low, medium and high (0.5 mol, 1.0 mol
and 2.0 mol) of hybrids heavy metals from Al, Fe, Mn, and Mg at four different period of time (week
1 until week 4) through in vitro model system. The results showed that there were significant
differences between the sequestration rates of different heavy metal hybrids and B. caroliniana in
removing the contaminants. Thus, this species is strongly supported the phytoremediation
approach in remediating the landfill heavy metals contaminant.
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