The present study deals with the treatment of an artificial pharmaceutical waste which contained amoxicillin (AMX) by using successively an electrocoagulation (EC) with Ca(NO₃)₂ as an electrolyte and a nanofiltration (NF) with a Nanomax-50 membrane. The effect of the current intensity and of the operating pressure was investigated for separately EC and NF, respectively. The AMX removal as a function of pH and initial AMX concentration was also investigated for the separately conducted EC and NF processes. The best percentage removal of AMX by EC and NF was recorded to be 52.7% and 99.0%, respectively. In the case of the sequential processes EC followed by NF, the removal of AMX was 98.2% and 97.5% at pH 2.5 and 10, respectively. The contribution of both EC and NF towards the AMX removal efficiency in the case of the sequential process was very much significant. It is remarkable that the EC pre-treated feed into NF was explored with several benefits such as high removal efficiency, calcium involved in EC process, prolonged membrane life and reduced power consumption. The electrogenerated solids (the sediment and the cathode deposit) were characterized using Fourier Transform Infra-red spectroscopy (FTIR), Energy Dispersive Spectroscopy (EDS) coupled to Scanning Electron Microscopy (SEM), X-ray Photoelectron Spectroscopy (XPS) and Thermo Gravimetry Analysis (TGA). It appeared that calcium was involved in the electrogenerated solids. It gave a cathode deposit of Ca(OH)₂ in which some AMX was embedded.

本研究通过使用Ca（NO ₃）₂连续电凝（EC）处理包含阿莫西林（AMX）的人工制药废物作为电解质和具有Nanomax-50膜的纳滤（NF）。分别针对EC和NF研究了电流强度和工作压力的影响。还针对单独进行的EC和NF工艺研究了AMX去除量与pH和初始AMX浓度的关系。EC和NF去除AMX的最佳百分比分别为52.7％和99.0％。在依次进行EC和NF的顺序过程中，在pH 2.5和10时，AMX的去除率分别为98.2％和97.5％。在顺序过程中，EC和NF对AMX去除效率的贡献非常重要。值得注意的是，对EC预处理后的NF进料进行了探索，具有许多好处，例如去除效率高，EC过程中涉及钙，延长膜寿命并降低功耗。使用傅立叶变换红外光谱（FTIR），能量色散光谱（EDS）耦合到扫描电子显微镜（SEM），X射线光电子能谱（XPS）和热重分析法对电生成的固体（沉积物和阴极沉积物）进行表征分析（TGA）。似乎钙与电生成的固体有关。它产生了Ca（OH）的阴极沉积物 似乎钙与电生成的固体有关。它产生了Ca（OH）的阴极沉积物 似乎钙与电生成的固体有关。它产生了Ca（OH）的阴极沉积物₂中嵌入了一些AMX。