http://dns2.asia.edu.tw/~ysho/YSHO-English/1000%20WC/PDF/Pro%20Bio34,%20451.pdf

Pseudo-second order model for sorption processes

http://libir.tmu.edu.tw/bitstream/987654321/43034/1/4.pdf

Review of second-order models for adsorption systems.

http://dns2.asia.edu.tw/~ysho/ysho-english/1000 wc/pdf/wat res34, 735.pdf

The kinetics of sorption of divalent metal ions onto sphagnum moss peat

Adsorption is one of the most widely applied techniques for environmental remediation. Its kinetics are of great significance to evaluate the performance of a given adsorbent and gain insight into the underlying mechanisms. There are lots of references available concerning adsorption kinetics, and several mathematic models have been developed to describe adsorption reaction and diffusion processes. However, these models were frequently employed to fit the kinetic data in an unsuitable or improper manner. This is mainly because the boundary conditions of the associated models were, to a considerable extent, ignored for data modeling. Here we reviewed several widely-used adsorption kinetic models and paid more attention to their boundary conditions. We believe that the review is of certain significance and improvement for adsorption kinetic modeling.

/pdf/critical-review-in-adsorption-kinetic-models-53zhc1ayhu.pdf

Critical review in adsorption kinetic models

A pseudo-second order rate equation describing the kinetics of sorption of divalent metal ions on to sphagnum moss peat at various initial metal ion concentrations and peat doses has been developed. The sorption kinetics were followed based on the concentrations of metal sorbed at various time intervals. Results show that chemical sorption processes might be rate-limiting for the sorption of divalent metal ions on to peat during agitated batch contact time experiments. The rate constant, the equilibrium sorption capacity and the initial sorption rate were calculated. From these parameters, an empirical model for predicting the concentrations of metal ions sorbed was derived.

http://dns2.asia.edu.tw/~ysho/YSHO-English/Publications/PDF/Ads%20Sci%20Tec18,%20639.pdf

N. T. Coleman

Papers

Formation Constants for Cu(II)-Peat Complexes.