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采用三维电极法对维生素废水进行深度处理,分别以钛涂钌铱板、铁板和不锈钢板作为电极阳极,石墨板作为电极阴极,柱状活性炭作为粒子电极,结果表明,当以钛涂钌铱板作为阳极,以粒径为1 mm的柱状活性炭作为粒子电极时电解效果最好,COD和色度去除率最高。实验选择电解电压、电极板间距、电解时间和初始pH值作为主要影响因素进行正交实验,实验研究证明,各因素的影响大小为电解电压>电极板间距>电解时间>初始pH值,得到的最佳参数组合分别为:电解电压为10 V,电极板间距为8 cm,电解时间为20 min,初始pH值为4,得到COD和色度最大去除率分别为59.5%和93.57%。
The three-dimensional electrode method was applied to the deep treatment of vitamin wastewater. Titanium-coated ruthenium-iridium plate, iron plate and stainless steel plate were used as the anode, graphite plate as the cathode and columnar activated carbon as the particle electrode. The results showed that when ruthenium- As the anode, the particle size of 1mm columnar activated carbon as a particle electrode electrolysis best, COD and color removal rate of the highest. The experiment selected the electrolysis voltage, the electrode plate spacing, the electrolysis time and the initial pH value as the main influencing factors. The experimental research proves that the influence factors of each factor are the electrolytic voltage> electrode plate spacing> electrolysis time> initial pH value, The best combination of parameters were as follows: the electrolysis voltage was 10 V, the distance between electrode plates was 8 cm, the electrolysis time was 20 min, and the initial pH was 4. The maximum removal rates of COD and color were 59.5% and 93.57% respectively.