Electronic Journal of Biotechnology ISSN: 0717-3458
  © 2005 by Universidad Católica de Valparaíso -- Chile
Vol. 8 No.1, Issue of April 15, 2005 

Figure 2. Effect of pH on the adsorption of Chromium ions on various adsorbents.
Cr (VI) concentration was 20 mg/ml;
Agitation speed: 200 rpm.;
Contact time: 3 hrs;
Amount of each adsorbent: 40 g/l;
Temperature was maintained at 25oC.

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