采用置换反应法制备了铜包铁粉催化剂，并用SEM、XRD、ICP对其进行了表征。研究了铜包铁粉催化类Fenton反应处理废切削液过程中，pH、催化剂质量浓度、反应时间、絮凝沉淀等工艺条件对COD去除率的影响。结果表明，当废切削液破乳出水初始pH 3、催化剂质量浓度为4.228 g/L、过氧化氢体积分数为193 mL/L、反应时间为3 h时，铜包铁粉催化类Fenton反应处理效果最优，反应后回调pH 10，投加10 g/L的聚合氯化铝混凝沉淀后，废切削液COD去除率可达96.7%。在铁基类Fenton催化剂上负载单质铜，可以显著提高其催化活性。

A kind of copper cladded iron powder catalyst is prepared by single displacement reaction method and then is characterized by SEM,XRD and ICP.Effects of pH,catalyst dosage,reaction time and coagulation-precipitation on the COD removal efficiency are experimentally studied in the waste cutting fluid treatment via Fenton-like reaction catalyzed by copper cladded iron powder.The results indicate that the optimal treatment effect via Fenton-like reaction catalyzed by copper cladded iron powder will be achieved when the demulsification water of waste cutting fluid water has an initial pH of 3,catalyst dosage is 4.228 g·L^-1,dosage of hydrogen peroxide is 193 mL·L^-1 and reaction time is 3 h.The COD removal rate of waste cutting fluid can reach 96.7% when the pH of waste cutting fluid after Fenton-like reaction is adjusted back to 10 and 10 g·L^-1 PAC is added for coagulation and flocculation.The loading of copper on iron-based Fenton catalyst can improve its catalytic activity significantly.

李雪伟(1993-),男,硕士研究生,研究方向为废水处理,2464303845@qq.com。