Mr. ojogbede Akinniyi (Publications)
Publisher Elsevier Publications, UK
Publication Type Journal
Publication Title Landfill Leachate Treatment Using Sub-surface Flow Constructed Wetland By Cyperus Haspan.
Publication Authors 1. Akinbile C. O., M. S. Yusoff, A. Z. A. Zuki
Year Published 2012

Performance evaluation of pilot scale sub-surface constructed wetlands was carried out in treating
leachate from Pulau Burung Sanitary Landfill (PBSL). The constructed wetland was planted with Cyperus
haspan with sand and gravel used as substrate media. The experiment was operated for three weeks
retention time and during the experimentation, the influent and effluent samples were tested for its
pH, turbidity, color, total suspended solid (TSS), chemical oxygen demand (COD), biochemical oxygen
demand (BOD5), ammonia nitrogen (NH3-N), Total phosphorus (TP), total nitrogen (TN) and also for heavy
metals such as iron (Fe), magnesium (Mg), manganese (Mn) and zinc (Zn) concentrations. The results
showed that the constructed wetlands with C. haspan were capable of removing 7.2–12.4% of pH,
39.3–86.6% of turbidity, 63.5–86.6% of color, 59.7–98.8% of TSS, 39.2–91.8% of COD, 60.8–78.7% of
BOD5, 29.8–53.8% of NH3-N, 59.8–99.7% of TP, 33.8–67.0% of TN, 34.9–59.0% of Fe, 29.0–75.0% of Mg,
51.2–70.5% of Mn, and 75.9–89.4% of Zn. The significance of removal was manifested in the quality of
the effluent obtained at the end of the study. High removal efficiencies in the study proved that leachate
could be treated effectively using subsurface constructed wetlands with C. haspan plant.
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