Abstract
Lemna minor L. (duckweed) is a free floating small, rapidly growing aquatic plant. It can adjust very easily
to several types of aquatic conditions and hence play a central role in extraction and bioaccumulation of toxic
pollutants from waters. In the present investigation Duckweed (Lemna minor L.), was exposed to different
concentrations of tannery sludge i.e., 0, 30 and 60% TS to assess the tolerance and heavy metals uptake.
Further, the transfer of these metals from roots to other plant parts was also measured. Results indicate that
higher concentration of metals was found in the shoots as compared to the roots. The transfer factor was also
greater than 1.0. The enrichment coefficients of the leaves of L. minor were found to be lower than 1.0 for all the
metals. This study confirmed that L. minor could be established as not only as bio-indicator but a bioaccumulator for different sediments and waste water polluted by metals
SHEZA AYAZ KHILJI , FIRDAUS-E-BAREEN. (2016) Efficiency of Duckweed (Lemna minor L.) in Phytotreatment of Tannery Sludge, Biologia – Journal of Biological Society of Pakistan, Volume 62 (I), Issue 1.
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