Abstract
Treatment of tannery effluents with hydrophytes viz., Chara intermedia, Typha angustifolia, Hemarthria compressa, Pistia stratiotes, Marsilea minuta and Salvinia natans showed a reduction in the heavy metal component of the effluents after growing them in tannery effluents. Typha angustifolia was found to be the best followed by H. compressa. These plants not only tolerated the full concentrations of tannery effluents but also reduced chromium content of the effluents upto a considerable extent. Other species exhibited more sensitivity towards high concentrations of the effluents and could not survive long during the experiment.
