使用具有三相三维电极的电解槽处理含酸性橙II的染料废水。
Treatment of dye wastewater containing acid orange II using a cell with three-phase three-dimensional electrode.
作者信息
Xiong Y, Strunk P J, Xia H, Zhu X, Karlsson H T
机构信息
Department of Chemistry, Zhongshan University, Guangzhou, People's Republic of China.
出版信息
Water Res. 2001 Dec;35(17):4226-30. doi: 10.1016/s0043-1354(01)00147-6.
The removal of color and chemical oxygen demand (COD) from simulated dye wastewater containing Acid Orange II was experimentally investigated using coagulation-electrooxidation. Two kinds of coagulation methods, ferrous-mediated coagulation and electrocoagulation were tested as pretreatment. The electrooxidation was carried out in a cell with a three-phase three-dimensional electrode using granular activated carbon as particle electrodes. Particular attention was paid to probe the effect of cell voltage, airflow rate, solution conductivity and treatment time on the electrochemical treatment efficiency. The experimental results showed that the coagulation-electrooxidation process could efficiently remove the color and the COD from the simulated dye wastewater. The overall COD and color removal efficiencies reached as high as 99% and 87%, respectively, by ferrous coagulation (molar rate of Fe(II)/ dye: 0.5) and 30-min electrolysis (cell voltage: 20.0 V and airflow: 0.1 m3 h(-1)).
采用混凝-电氧化法对含酸性橙II的模拟染料废水进行脱色及化学需氧量（COD）去除的实验研究。测试了两种混凝方法，即亚铁介导混凝和电混凝作为预处理方法。电氧化在装有三相三维电极的电解槽中进行，使用颗粒活性炭作为粒子电极。特别关注了考察槽电压、空气流速、溶液电导率和处理时间对电化学处理效率的影响。实验结果表明，混凝-电氧化工艺能够有效地去除模拟染料废水中的颜色和COD。通过亚铁混凝（Fe(II)/染料摩尔比：0.5）和30分钟电解（槽电压：20.0 V，空气流速：0.1 m³ h⁻¹），COD和颜色的总去除效率分别高达99%和87%。
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