AI Article Synopsis
- The study assessed a continuous free surface flow wetland's ability to remove heavy metals from industrial wastewater in Swabi, Pakistan.
- Samples from different points of the wetland were analyzed for metals like lead, cadmium, and copper, showing varying removal efficiencies, with cadmium being removed most effectively at nearly 92%.
- The findings suggest that while the wetland effectively reduces metal contamination, enhancing its performance could be achieved through better management of plants and expanding the wetland area.
Article Abstract
This study was conducted to investigate the effectiveness of a continuous free surface flow wetland for removal of heavy metals from industrial wastewater, in Gadoon Amazai Industrial Estate (GAIE), Swabi, Pakistan. Industrial wastewater samples were collected from the in-let, out-let and all cells of the constructed wetland (CW) and analyzed for heavy metals such as lead (Pb), cadmium (Cd), iron (Fe), nickel (Ni), chromium (Cr) and copper (Cu) using standard methods. Similarly, samples of aquatic macrophytes and sediments were also analyzed for selected heavy metals. Results indicate that the removal efficiencies of the CW for Pb, Cd, Fe, Ni, Cr, and Cu were 50%, 91.9%, 74.1%, 40.9%, 89%, and 48.3%, respectively. Furthermore, the performance of the CW was efficient enough to remove the heavy metals, particularly Cd, Fe, and Cu, from the industrial wastewater fed to it. However, it is suggested that the metal removal efficiency of the CW can be further enhanced by using proper management of vegetation and area expansion of the present CW.
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| http://dx.doi.org/10.1016/j.jenvman.2009.05.026 | DOI Listing |
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