| 초록 |
Environmental regulations for the removal of trinitrotoluene (TNT) from wastewater have steadily become more stringent. This study focuses on the adsorption equilibrium, kinetics and column dynamics of TNT on heterogeneous activated carbon. Adsorption equilibrium data in terms of temperature and Ph were obtained and were correlated by Sips equation. In addition, the adsorption energy distribution functions which describe heterogeneous characteristics of porous solid sorbents, were calculated by using the generalized nonlinear regularization method (GENEREG). Adsorption breakthrough curves were studied in a column adsorber under various operating conditions such as temperature, pH, concentration, flow rate, and column length. An adsorption model was formulated by employing the surface diffusion model inside activated carbon particles. The model equation was solved numerically by an orthogonal collocation method. The model successfully simulates the adsorption breakthrough curves. |
