三维电极电-Fenton法处理硝基苯废水试验  

Experiment on Treatment of Nitrobenzene Wastewater by Three-dimensional Electrode Electro-Fenton Method

作　　者：李亚峰[1] 郭鹏成 LI Yafeng;GUO Pengcheng(School of Municipal and Environment Engineering,Shenyang Jianzhu University,Shenyang,China,110168)

机构地区：[1]沈阳建筑大学市政与环境工程学院,辽宁沈阳110168

出　　处：《沈阳建筑大学学报（自然科学版）》2023年第1期177-184,共8页Journal of Shenyang Jianzhu University：Natural Science

基　　金：“十三五”国家计划水体污染控制与治理科技重大专项(2018ZX07601-001)。

摘　　要：目的 研究三维电极电-Fenton法处理硝基苯废水的工艺条件及各因素的影响规律,为电-Fenton法在硝基苯废水处理领域的应用提供技术支撑。方法 通过单因素试验,分析pH值、电流强度、极板间距及曝气强度等对处理废水效果的影响;通过正交试验确定最优反应条件。结果 Fe-C电极的处理效果优于C-C电极,活性炭和纳米铁混合三维粒子电极的处理效果优于其他两种单一粒子三维电极。初始pH值、极板间距、电流强度、曝气强度对三维电极电-Fenton法处理硝基苯废水的效果有影响,当初始pH值为3.5、极板间距为8 cm、电流为1.5 A、曝气强度0.8 m^(3)/h时,COD平均去除率可达到83.01%。结论 三维电极电-Fenton法的氧化能力高于传统电-Fenton法,对硝基苯废水具有较理想的处理效果。To the application of electrofenton process in the field of nitrobenzene wastewater treatment, the operation conditions and effects of various factors in the treatment of nitrobenzene wastewater by three-dimensional electrode-electro-fenton process were studied.The effects of pH value, current intensity, plate spacing and aeration intensity on wastewater treatment were studied and analyzed by single factor test.The optimum reaction conditions were determined by orthogonal test.The treatment effect of Fe-C electrode is better than that of C-C electrode, and the treatment effect of the three-dimensional particle electrode mixed with activated carbon and nano-iron is better than that of the other two single particle three-dimensional electrodes.The initial pH value, plate spacing, current intensity and aeration intensity have an effect on the treatment of nitrobenzene wastewater by three-dimensional electrode-electro-Fenton process.When the initial pH value is 3.5,plate spacing is 8 cm, current intensity is 1.5 A and aeration intensity is 0.8 m^(3)/h, the average COD removal rate can reach 83.01%.The oxidation capacity of three-dimensional electrofenton process is higher than that of traditional electrofenton process, and has a better treatment effect on nitrobenzene wastewater.

关 键 词：三维电极 活性炭 硝基苯废水 电-FENTON 

分 类 号：TU99[建筑科学—市政工程] X703[环境科学与工程—环境工程]