水中抗生素磺胺二甲基嘧啶的吸附去除机理研究

发布时间：2018-05-10 21:21

  本文选题：抗生素 + 松针　； 参考：《辽宁工程技术大学》2015年硕士论文

【摘要】：抗生素的大量使用甚至滥用对环境造成不容忽视的污染。本文选取生物质材料—马尾松松针和高分子合成材料—强碱性阴离子交换树脂作为吸附剂,分别对磺胺二甲基嘧啶吸附影响因素进行了实验研究。以静态和动态实验分别考察两种吸附剂对水中的磺胺二甲基嘧啶的吸附效果。结果表明,松针与树脂对水中的磺胺二甲基嘧啶吸附均属于物理吸附,两种吸附剂的吸附等温方程都与Langmuir方程相符,松针吸附动力学可以用一级动力学方程描述；而树脂吸附动力学可以用二级动力学方程描述；pH值对饱和吸附量有很大的影响,它们都以近中性溶液的饱和吸附量最大,饱和吸附量分别为0.229mg/g及0.244mg/g；溶液温度超过20℃时对饱和吸附量的影响不大。以马尾松松针作为吸附剂去除水体中的抗生素类物质具有良好的应用前景。
[Abstract]:The extensive use and even abuse of antibiotics cause pollution to the environment that can not be ignored. In this paper, the influence factors of sulfadimethylpyrimidine adsorption on the adsorption of sulfadimethylpyrimidine were studied by selecting the biomaterials, pine needles of Masson pine and polymer synthetic materials, strong basic anion exchange resin as adsorbent. The adsorption effects of two adsorbents on sulfadimethazine in water were investigated by static and dynamic experiments. The results showed that the adsorption of sulfamethylpyrimidine in water by pine needle and resin was physical, and the adsorption isotherm equation of the two adsorbents was consistent with the Langmuir equation, and the adsorption kinetics of pine needle could be described by first-order kinetic equation. The adsorption kinetics of resin can be described by the second-order kinetic equation. The pH value of resin has a great influence on the saturated adsorption capacity, and they all have the largest saturated adsorption capacity in near-neutral solution. The saturated adsorption capacity is 0.229mg/g and 0.244 mg / g, respectively, and the solution temperature over 20 鈩，

本文编号：1870955