Abstract

A synthetic adsorbent (FS) that can be used in constructed wetlands to removal Tetracycline (TET) from wastewater was obtained by co-precipitation of iron and oyster shell. The scanning electron microscopy (SEM) of the oyster shells showed rough surface and layered structure, while the characteristics of FS were shown by X-ray diffraction (XRD). Adsorption efficiency of FS was influenced by particle size and HCl concentration. The experimental results revealed that FS with particle diameter of 20–30mm and HCl concentration of 0.6 mol/L had the highest TET removal rate. The results of study presented that FS was recognized as a low-cost, effective adsorbent.

摘要

通过铁和牡蛎壳的共沉淀获得了一种合成吸附剂 (FS)，可用于人工湿地以去除废水中的四环素 (TET)。牡蛎壳的扫描电子显微镜（SEM）显示表面粗糙和层状结构，而 FS 的特征由 X 射线衍射（XRD）显示。FS 的吸附效率受粒径和 HCl 浓度的影响。实验结果表明，粒径为20-30mm、HCl浓度为0.6 mol/L的FS具有最高的TET去除率。研究结果表明，FS 被认为是一种低成本、有效的吸附剂。