Phytoremediation of landfill leachate using Pennisetum clandestinum


Sogut Z. , Zaimoglu B. Z. , ERDOĞAN R., SUCU M.

JOURNAL OF ENVIRONMENTAL BIOLOGY, cilt.26, ss.13-20, 2005 (SCI İndekslerine Giren Dergi) identifier identifier identifier

  • Cilt numarası: 26 Konu: 1
  • Basım Tarihi: 2005
  • Dergi Adı: JOURNAL OF ENVIRONMENTAL BIOLOGY
  • Sayfa Sayısı: ss.13-20

Özet

Landfills are still the most widely used solid waste disposal method used across the world. Leachale generated from landfill areas exerts environmental risks mostly on surface and groundwater, with its high pollutant content most notably metals which cause an unbearable lower water quality. During dumping or after the capacity of the landfill has been reached, a decontamination and remediation program should be taken for the area. This study was conducted to assess Me capacity and efficiency of Pennisetum clandestinum, a prostrate perennial plant, to accumulate chromium (Gr), copper (Cu), iron (Fe), nickel (Ni), zinc (Zn) and lead (Pb). Leachate, taken from the Sofulu Landfill Site, was given to Pennisetum clandestinum for 180 days, in 3 dilution sets as 1/1, 112 and 114, in batch configuration. An additional control set was also installed for comparison. Results showed that, even though the metal content of soil had risen, plants accumulated 2 to 8.5 times higher concentrations than Me control set. It is important to see, the plant showed almost no stress symptoms even if the set was fed by pure leachate. Pennisetum dandestinum was observed to accumulate metals mostly in the upper bodies, excluding Fe and Cu. 76% of accumulated Cr, 85% of Ni, 66% of Zn and 100% of Pb was observed to accumulate in above-ground pails, where only 20% of Cu and 4% of Fe was accumulaled Due to the high pollution tolerance of Pennisetum clandestinum, makes this plant suitable for decontamination and remediation of landfill sites.