Modeling the effect of pH on biosorption of heavy metals by citrus peels.

@article{Schiewer2008ModelingTE,
  title={Modeling the effect of pH on biosorption of heavy metals by citrus peels.},
  author={Silke Schiewer and Santosh Bramhadev Patil},
  journal={Journal of hazardous materials},
  year={2008},
  volume={157 1},
  pages={
          8-17
        }
}
Biosorption by materials such as citrus peels could be a cost effective technique for removing toxic heavy metals from wastewater. Orange peels, lemon peels and lemon-based protonated pectin peels (PPP) had Langmuir sorption capacities of 0.7-1.2 mequiv./g (39-67 mg/g) of Cd per biosorbent dry weight. A potentiometric titration was interpreted using a continuous pK(a) spectrum approach. It revealed four acidic sites with pK(a) values of 3.8, 6.4, 8.4 and 10.7, and a total site quantity of 1.14… CONTINUE READING

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