Abstract
The kinetics of four sorption systems, Cu/tree fern, Pb/tree fern, AB9/activated clay and BR18/activated clay have been studied based on the assumption of a pseudo-second order rate law. Pseudo-isotherms using the pseudo-second order kinetic expression constant have been developed to describe the four liquid-solid sorption systems. The experimental results have been analyzed using a pseudo-Langmuir and a pseudo-Redlich-Peterson isotherm. Both isotherms were found to represent the measured sorption data well. According to the evaluation using the pseudo-Langmuir equation, the monolayer sorption capacities were obtained to be 13.9, 46.6, 124 and 105 mg g-1 for copper, lead, AB9 and BRI 8 respectively.
Original language | English |
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Pages (from-to) | 151-158 |
Number of pages | 8 |
Journal | Adsorption |
Volume | 10 |
Issue number | 2 |
DOIs | |
Publication status | Published - Jun 2004 |
Keywords
- Adsorption
- Equilibrium
- Kinetics
- Pseudo-isotherm
- Pseudo-second order
ASJC Scopus subject areas
- Physical and Theoretical Chemistry
- Process Chemistry and Technology
- General Chemical Engineering