本研究探讨了纳滤（NF）和反渗透（RO）膜的可能性 从废水中去除低水平选定抗生素的替代方法 以及在不断变化的水条件下的地表水，如pH值和天然有机物的存在 物质（名词）。用死端过滤装置获得的初步实验结果 表明抗生素在膜表面的吸附可以忽略不计。然而 pH值的变化对去除有很大的影响，pH值的变化是由于两种材料之间静电斥力的变化引起的 带电抗生素和膜表面。NF的孔隙扩散模型和 反渗透溶液扩散模型将用于进一步了解其机理和趋势 在实验数据背后。包括17个参考文献、表格、图表。

This study addresses the possibility for nanofiltration (NF) and reverse osmosis (RO) membrane processes to serve as an alternative to remove low levels of selected antibiotics from wastewaters and surface waters given changing water conditions such as pH and presence of natural organic matter (NOM). Preliminary experimental results obtained with a dead-end filtration apparatus suggest that adsorption of antibiotics onto the membrane surface is negligible. However, removal is greatly affected by changes in pH due to changes in electrostatic repulsion between charged antibiotics and membrane surfaces. Both the pore diffusion model for NF and the solution diffusion model for RO will be applied to further understand the mechanisms and trends behind the experimental data. Includes 17 references, table, figure.