WU Zhiyu,LI Xingqing*,KUANG Yudan,et al.Study on the Treatment of Nickel-Containing Wastewater by Three-Dimensional Electrolysis[J].Plating & Finishing,2022,(5):39-43.[doi:10.3969/j.issn.1001-3849.2022.05.007]
三维电解处理含镍废水的研究
- Title:
- Study on the Treatment of Nickel-Containing Wastewater by Three-Dimensional Electrolysis
- Keywords:
- nickel-containing wastewater; three-dimensional electrolysis; chemical oxygen demand; degradation rate; stability
- 分类号:
- X703.1
- 文献标志码:
- A
- 摘要:
- 以含镍废水为研究对象，石墨极板为阴阳极，负载氧化性的活性炭为填料，底部连接曝气装置，构建三维电解体系。利用单因素分析的方法和正交实验的分析方法分别对三维电解体系的电压、初始 pH 以及电解时间进行了考察。通过计算化学需氧量（ COD ）的降解率，研究了体系在不同条件下的作用效果，分析了活性炭在该三维电解体系的稳定性。结果表明，该三维电解体系的最佳工艺参数为：电压 17.5 V 、初始 pH 7 、电解时间 3 h ，在此条件下 COD 的去除率达到 94.02% ；三个因素对三维电解体系的影响顺序为：电压 >pH> 电解时间，同时证明活性炭在该体系中有非常好的稳定性，可以重复利用。
- Abstract:
- ： In this paper ， nickel-containing wastewater is used as the research object ， the graphite plate is the cathode and anode ， the oxidizing activated carbon is the filler ， and the bottom is connected with an aeration device to construct a three-dimensional electrolysis system. Single factor analysis and the orthogonal experiment analysis were used to investigate the voltage ， initial pH value and electrolysis time of the three-dimensional electrolysis system. By calculating the degradation rate of chemical oxygen demand （ COD ）， the effect of the system under different conditions was studied ； and the stability of activated carbon in the three-dimensional electrolysis system was investigated. The results show that the optimal process parameters of the three-dimensional electrolysis system are voltage 17.5 V ， initial pH 7 and electrolysis time 3 h. Under these conditions ， the removal rate of COD reaches 94.02%. The influence order of three factors on three-dimensional electrolysis system is ： voltage > pH > electrolysis time. At the same time ， it is proved that activated carbon has very good stability in the system and can be reused.
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备注/Memo
收稿日期： 2021-06-06 修回日期： 2021-10-28 作者简介： 吴志宇（ 1988 ―），男，硕士，中级工程师， email ： 605459434@qq.com 通信作者： 李杏清， email ： 1968548710@qq.com