【摘要】 采用UV／Fenton氧化-混凝联合工艺对模拟苯酚废水进行处理,探讨了UV／Fenton预氧化程度和混凝处理条件对模拟苯酚废水处理效果的影响。结果表明,采用混凝处理,COD去除率仅为14.1％;当UV／Fenton预氧化处理过程中H2O2的质量浓度为150~300mg／L时,废水的混凝性能可提高1.5倍以上;当H2O2质量浓度为450 mg／L、光反应时间为30 min时,采用UV／Fenton氧化-混凝工艺联合处理后COD去除率达82.7％。苯酚废水采用UV／Fenton预氧化处理后,进行混凝处理过程的适宜pH为6.5,混凝剂Fe3+的适宜质量浓度为500 mg／L。更多还原

【Abstract】 <abstract>mulated phenol-containing wastewater was treated by UV/Fenton oxidation-coagulation process. The effects of UV/Fenton preoxidation and the coagulation condition on treatment efficiency were explored. The removal rate of COD is only 14.1% in direct coagulation treatment. When the mass concentration of H2O2 is 150 -300 mg/L in preoxidation, the coagulation efficiency is increased by 150% . When the mass concentration of H2O2 is 450 mg/L, the photoreaction time is 30 min, the removal rate of COD by the combined process is 82.7 % . After pretreatment by UV/Fenton oxidation, the optimum wastewater pH for coagulation is 6.5, and the mass concentration of Fe3+ is 500 mg/L.更多还原