Published May 10, 2017
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Adsorption Behaviour of Lactic Acid on Granular Activated Carbon and Anionic Resins: Thermodynamics, Isotherms and Kinetic Studies

  • 1. Department of Biology
  • 2. UNESCO-IHE Institute for Water Education
  • 3. National Research Council
  • 4. Consiglio Nazionale delle Ricerche
  • 5. Pegaso Telematic University
  • 6. University of Cassino

Description

Solid-liquid extraction (adsorption or ion exchange) is a promising approach for the in situ separation of organic acids from fermentation broths. In this study, a diluted concentration of lactic acid ( 0.96) and the pseudo-second order kinetic model (R2 ~ 1) fitted better to the experimental data than the other models tested. Postulating the conditions for the real fermentation broth (pH: 5.0–6.5 and temperature: 30–80 °C), the resin AMB400 represents an ideal candidate for the extraction of lactic acid during fermentation.
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