旋转填充床中O_3/Fenton工艺处理模拟焦化废水

The Treatment of Simulated Coking Wastewater by O_3/Fenton Process in a Rotating Packed Bed

在旋转填充床(RPB)中,研究了O3/Fenton工艺处理模拟焦化废水的效果。考察了Fe2+浓度、旋转床转速、液体流量、气体流量及初始p H值对化学需氧量(COD)去除率及溶液中苯酚、苯胺、喹啉和NH3-N去除率的影响。结果表明,在p H值为6,温度25℃,液体流量20 L/h,气体流量5 L/h,转速1 000 r/min,H2O2的浓度为6.5 mmol/L,Fe2+浓度为0.4 mmol/L的条件下,模拟焦化废水的COD的去除率达到43.57%,废水中苯酚的去除率达81.56%,苯胺为100%,喹啉为81.17%,NH3-N为100%。

The treatment of simulated coking wastewater by the O3/Fenton process in a rotating packed bed （RPB） was studied. The effects of Fe（II） concentration, RPB rotating speed, liquid flow rate, gas flow rate and initial pH on the removal of chemical oxygen demand（COD） and the degradation of phenol, aniline, quinoline, and NH3-N were investigated. The results showed that the COD removal of the coking wastewater reached 43.57%, and the degradation of phenol, aniline, quinoline and NH3-N reached 81.56%, 100%, 81.17% and 100%, respectively, in the O3/Fenton process under the conditions of 25℃, rotating speed 1 000 r/min, pH value 6, H2O2 concentration 6.5 mmol/L, Fe^2＋ concentration 0.4 mmol/L, gas flow rate 5 L/h, and liquid flow rate 20 L/h.