化工环保2023，Vol.43Issue(6)：767-772,6.DOI:10.3969/j.issn.1006-1878.2023.06.008
改性石墨毡阴极电Fenton氧化法处理印染废水
Treatment of printing and dyeing wastewater by electro-Fenton oxidation process with modified graphite felt cathode
摘要
Abstract
Graphite felt(GF)was doped with N and modified using manganese sulfate assisted with α-cyclodextrin(α-CD)to prepare N-Mn co-doped modified graphite felt(N-Mn(α-CD)/GF).An electro-Fenton oxidation system was constructed using N-Mn(α-CD)/GF as cathode,and the treatment effect of this system on printing and dyeing wastewater was investigated.The characterization results show that N and Mn are successfully loaded onto GF surface,α-CD helps to overcome the agglomeration of Mn particles on GF surface,and can introduce oxygen-containing functional groups into GF surface,thereby enhancing the hydrophilicity of GF.The experimental results show that:In the electro-Fenton oxidation system containing tirpolyphosphate(TPP),the mass concentration decreased by 10.30％from 165 mg/L for the first time to 145 mg/L after repeated for 6 times at the reaction time of 120 min,indicating the stable H2O2 production performance of the system;Under the conditions of TPP concentration 5.0 mmol/L,aeration flow 1.5 L/min,current 200 mA,influent COD 1 620-2 200 mg/L,influent chroma 800-1 000 times and reaction time 120 min,the removal rate of COD and chroma of the printing and dyeing wastewater after treated by electro-Fenton oxidation with N-Mn(α-CD)/GF cathode is 88.31％and 98.79％,respectively.关键词
石墨毡/电Fenton氧化/印染废水/过氧化氢/三聚磷酸盐Key words
graphite felt/electro-Fenton oxidation/printing and dyeing wastewater/hydrogen peroxide/tirpolyphosphate分类
资源环境引用本文复制引用
王晓媛,马迁,崔玉,杨洋,李增辉,戴捷..改性石墨毡阴极电Fenton氧化法处理印染废水[J].化工环保,2023,43(6):767-772,6.基金项目
国家自然科学基金项目(21173026) （21173026）
湖北省自然科学基金重点项目(2013CFA107) （2013CFA107）
荆州市科技项目(2019EC61-14). （2019EC61-14）
