Sorption kinetics of PAHs in methanol-water systems

摘要

The objectives of this study were to evaluate the relationships between the equilibrium sorption constant(K_p), the first-order desorption rate coefficient(k_2), and the volumetric fraction of water miscible solvent(f_c); and to utilize SPARC-calculated(SPARC Performs Automatic Reasoning in Chemistry)solubility and partitioning parameters with empirical measurements for a priori Prediction of solute sorption kinetics in aqueous and mixed solvent systems. soil column miscible Displacement experiments were performed using naphthalene, phenanthrene, anthracene, pyrene And benzo(a)pyrene over an f_c range from 0.0 to 0.8.