Fe/C微电解Fenton协同氧化-混凝沉淀-A/O工艺处理蒽醌类染料废水  

Treatment of Anthraquinone Dye Wastewater with Fe/C Electrolysis-Fenton Synergistic Oxidation-Coagulation Sedimentation-A/O Process

作　　者：肖霄[1] 崔康平[1] 王郑[1] 冯莹莹[1] 

机构地区：[1]合肥工业大学资源与环境工程学院,安徽合肥230009

出　　处：《水处理技术》2016年第12期55-59,共5页Technology of Water Treatment

基　　金：国家水体污染控制与治理科技重大专项(2012ZX07205-002);国家自然科学基金(41072194)

摘　　要：采用Fe/C微电解与Fenton协同氧化-混凝沉淀-A/O组合工艺对蒽醌类染料废水进行处理,研究了各处理单元的优化反应条件。结果表明,在Fe/C微电解与Fenton协同氧化处理单元,当H_2O_2投加量为3 mL/L、HRT为100min、pH为3时,单级COD和色度去除率分别为80.67%和92.73%,BOD5/COD由初始的0.07升高至0.45;在混凝沉淀单元,当pH为8,PAC、PAM的投加量分别为200、2 mg/L,沉淀时间为30 min时,单级COD和色度去除率分别为65.41%和88.33%,BOD5/COD提高至0.57;通过后续生化处理后,最终出水的COD为68 mg/L,色度为30倍,总去除率分别达到99.01%和99.82%,出水NH_4^+-N、TN、TP的质量浓度分别为3.65、19.22、0.38 mg/L,出水水质均达到了GB 4287-2012排放标准。In this study, a combined processing, which was comprised of the Fe/C electrolysis, Fenton synergistic oxidation, coagulation sedimentation and finally A/O approach, was used to treat the anthraquinone-enri＇ched wastewater and the optimal reaction conditions were subsequently determined for each unit. In the Fe/C electrolysis and Fenton synergistic oxidation unit, the COD and colority removal rates were 80.67% and 92.73%, respectively, and the BOD5/COD increased from 0.07 to 0.45, when the input condition was set as 3 mL/L for H202, 100 min for HRT, 3.5 for pH, respectively. In the coagulation sedimentation unit, the COD and colorityremoval rates were 65.41% and 88.33%, respectively, and the value of BOD5/COD could reach up to 0.57; Through the following biochemical treatment, the eolority of the eluted water was accumulated for 30 times, with total removal rate reaching 99.01% （COD） and 99.82% （colority）, respectively; the final effluent mass concentrations of NH4＋-N, TN and TP were 3.65 mg/L, 19.22 mg/L and 0.38 mg/L resPectively. The quality of effluent water reached the discharging standard of GB 4287-2012.

关 键 词：蒽醌类染料废水 FE/C微电解 FENTON氧化 A/O工艺 

分 类 号：X791[环境科学与工程—环境工程]