Removal of Acetaminophen by Biochar from Aqueous Environment:Performance and Mechanisms
Biochar is one of the most promising materials for non-steroidal anti-inflammatory drugs(NSAIDs)removal from aqueous environment.However,the relative study is far from complete and involved mechanisms are unclear,especially about the dynamic adsorption process.Batch adsorption and fixed-bed column experiments are conducted to investigate the removal of acetaminophen(AP)from aqueous environment by commercial biochar.The sorption kinetics are well fitted with Pseudo-second-order model and Elovich model.The adsorption isotherm could be better described by Langmuir model than Freundlich model,and the Langmuir maximum capacity is 131.578 mg/g.Biochar dosage and flow rate affect the dynamic adsorption removal process of fixed-bed columns.Thomas model,Yoon-Nelson model,Clark model and BDST model all well simulate and predict the column experimental data.The results indicate great application prospect of biochar in large-scale AP removal.
万方数据
维普
