中文摘要：

acetaminophen 的吸附行为被描述到 Weihe 河里的沉积上。在吸附的进程的影响因素例如接触时间，解决方案 pH，温度，和离子的力量，被实验决定。试验性的结果被分析由运动并且等温线模型。吸附动力学被发现跟随一个伪 first-order 模型。与兰米尔和 Freundlich 等温线适合很好的平衡吸附数据当模特儿。然而，兰米尔等温线是更合适的描述吸附。象 Gibbs 免费的精力那样的热力学参数变化(G ⁰), 热含量变化(H ⁰) 和熵变化(S ⁰) 被计算。结果证明吸附是可行的，自发，熵增加，并且在自然吸热，它在大约 24 个小时到达了平衡。吸附能力没在答案 pH 3.0-9.0 引起明显的变化，并且在答案 pH 9.0-11.0 减少。象在水的答案的 NaCl 那样的电解质的存在在吸附上有重要否定效果。控制吸附的机制应当是化学吸着。

英文摘要：

Adsorption behaviors of acetaminophen onto sediment in the Weihe River were described.The impact factors in the processes of adsorption,such as contact time,solution pH,temperature,and ionic strength,were determined by experiments.The experimental results were analyzed by kinetic and isotherm models.The adsorption kinetics was found to follow a pseudo-first-order model.The equilibrium adsorption data fitted well with the Langmuir and Freundlich isotherm models.However,the Langmuir isotherm was more suitable to describe the adsorption.Thermodynamics parameters such as Gibbs-free energy change（△C^0）,enthalpy change（△H^0） and entropy change（△S^0） were calculated.Results showed that the adsorption was feasible,spontaneous,entropy increasing,and endothermic in nature,which reached equilibrium in about 24 hours.The adsorption capacity did not cause obvious change at solution pH 3.0-9.0,and decreased in solution pH 9.0-11.0.The presence of electrolytes such as NaCl in aqueous solution had a significant negative effect on the adsorption.The mechanisms controlling the adsorption were supposed to be chemisorption.