Electronic Journal of Biotechnology ISSN: 0717-3458
  © 2007 by Universidad Católica de Valparaíso -- Chile
Vol. 10 No. 3, Issue of August 15, 2007
 


Table 1. Biosorption and chemical precipitation of lead at different pH values.


 

Pb(II) (mmol/L)*

pH 4.0

pH 4.5

pH 5.0

Chemical precipitation (blank)

0.23 0.01

0.21 0.01

0.16 0.01

Biosorption

0.002

0.004

0.005

*Standard deviations were not reported, in some cases, due to their negligible values.
Initial lead concentration: 0.23 0.01 mmol/L.


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