Principle and Process of Biofiltration of Cd, Cr, Co, Ni & Pb from Tropical Opencast Coalmine Effluent

  title={Principle and Process of Biofiltration of Cd, Cr, Co, Ni \& Pb from Tropical Opencast Coalmine Effluent},
  author={Alka Rani Upadhyay and Brahma Dutt Tripathi},
  journal={Water, Air, and Soil Pollution},
Opencast coalmine effluent contains higher concentrations of Cd, Cr, Co, Ni and Pb. Biofiltration of these metals has been demonstrated successfully with the help of aquatic macrophytes i.e., E. crassipes, L. minor and A. pinnata. Experiments revealed E. crassipes reduced highest concentration of heavy metals followed by L. minor and A. pinnata on 20th days retention period. Plant tissue analysis revealed higher accumulation of metals in roots than leaves. Highly significant correlations have… 

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