Women's Hospital, School of Medicine, Zhejiang University, Hangzhou 310006, China.
Zhejiang Key Laboratory of Drinking Water Safety and Distribution Technology, Zhejiang University, Hangzhou 310058, China.
Molecules. 2022 Jul 15;27(14):4524. doi: 10.3390/molecules27144524.
Carbamazepine (CBZ), as a typical pharmaceutical and personal care product (PPCP), cannot be efficiently removed by the conventional drinking water and wastewater treatment process. In this work, the CoS2/Fe2+/PMS process was applied for efficient elimination of CBZ. The CBZ removal efficiency of CoS2/Fe2+/PMS was 2.5 times and 23 times higher than that of CoS2/PMS and Fe2+/PMS, respectively. The intensity of DMPO-HO• and DMPO-SO4•− followed the order of Fe2+/PMS < CoS2/PMS < CoS2/Fe2+/PMS, also suggesting the CoS2/Fe2+/PMS process has the highest oxidation activity. The effects of reaction conditions (e.g., CoS2 dosage, Fe2+ concentration, PMS concentration, initial CBZ concentration, pH, temperature) and water quality parameters (e.g., SO42−, NO3−, H2PO4−, Cl−, NH4+, humic acid) on the degradation of CBZ were also studied. Response surface methodology analysis was carried out to obtain the best conditions for the removal of CBZ, which are: Fe2+ = 70 µmol/L, PMS = 240 µmol/L, CoS2 = 0.59 g/L. The sustainability test demonstrated that the repeated use of CoS2 for 8 successive cycles resulted in little function decrease (<10%). These findings suggest that CoS2/Fe2+/PMS may be a promising method for advanced treatment of tailwater from sewage treatment plant.
卡马西平（CBZ）作为一种典型的医药和个人护理产品（PPCP），不能被传统的饮用水和废水处理工艺有效去除。在这项工作中，采用了 CoS2/Fe2+/PMS 工艺来高效去除 CBZ。CoS2/Fe2+/PMS 对 CBZ 的去除效率分别比 CoS2/PMS 和 Fe2+/PMS 高 2.5 倍和 23 倍。DMPO-HO•和 DMPO-SO4•−的强度顺序为 Fe2+/PMS < CoS2/PMS < CoS2/Fe2+/PMS，也表明 CoS2/Fe2+/PMS 过程具有最高的氧化活性。还研究了反应条件（例如 CoS2 用量、Fe2+浓度、PMS 浓度、初始 CBZ 浓度、pH 值、温度）和水质参数（例如 SO42−、NO3−、H2PO4−、Cl−、NH4+、腐殖酸）对 CBZ 降解的影响。通过响应面法分析，获得了去除 CBZ 的最佳条件，即：Fe2+ = 70 µmol/L，PMS = 240 µmol/L，CoS2 = 0.59 g/L。可持续性测试表明，CoS2 重复使用 8 次后，其功能下降幅度较小（<10%）。这些发现表明，CoS2/Fe2+/PMS 可能是一种很有前途的污水处理厂尾水深度处理方法。
