Adsorption of p-chlorophenol by biofilm components

摘要

Through batch equilibrium experiments under the conditions of temperature 25 deg. C, pH values of 2.7, 5.3 and 6.1, the p-chlorophenol (4-cp) adsorption to biofilm components was investigated in this study. The contributions of biofilm components to 4-cp adsorption were discussed by comparing four adsorption systems, i. e. 4-cp adsorbed by model suspended particulate matter (kaolin)with biofilm coating, bacteria, bacterial exopolysaccharide (EPS) and kaolin, respectively. Langmuir and Freundlich isotherm equations were used to evaluate the experiment data.