邻甲苯胺废水电化学处理效能的影响因素研究

发布时间：2018-07-29 13:36

【摘要】：文章采用石墨片做电极,搭建了简易的电化学污水处理装置处理邻甲苯胺模拟废水。实验中分别选取Na_2SO_4和NaCl做电解质考察了电解质浓度和电流密度对邻甲苯胺去除效果的影响规律,比较了2种电解质条件下COD去除率与能耗的差异,初步分析探讨了电化学反应器去除邻甲苯胺的机理。研究结果表明,NaCl做电解质时的去除效果明显优于Na_2SO_4,同等条件下邻甲苯胺的去除率高出41.2%,COD去除率高出37.2%,优化条件下所需能耗降低7.4%。这主要是由于氯化钠做电解质时,不仅有阳极对邻甲苯胺的直接氧化降解作用还能够产生强氧化性的氯气和次氯酸间接氧化邻甲苯胺。
[Abstract]:In this paper, a simple electrochemical wastewater treatment device was built using graphite sheet as electrode to treat o-toluidine simulated wastewater. In the experiment, Na_2SO_4 and NaCl were chosen as electrolytes to investigate the effect of electrolyte concentration and current density on the removal efficiency of o-toluidine, and the difference between COD removal efficiency and energy consumption was compared. The removal mechanism of o-toluidine by electrochemical reactor was analyzed. The results show that the removal efficiency of sodium chloride as electrolyte is obviously better than that of Na2SOs _ 4, the removal rate of o-toluidine is higher than that of 41.2% and 37.2% of COD under the same conditions, and the energy consumption is reduced by 7.4% under the optimized conditions. This is mainly due to the direct oxidation degradation of o-toluidine by anode and the indirect oxidation of o-toluidine by chlorine gas and hypochloric acid when sodium chloride is used as electrolyte.
【作者单位】： 南京工业大学环境科学与工程学院;
【基金】：国家自然科学基金青年科学基金项目(51308284)
【分类号】：X703

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1 曹培义,刘健,王继业;邻甲苯胺分光光度法测定甜饮料中的葡萄糖[J];职业与健康;2001年08期

2 ;用钢、铁屑作还原剂制备邻甲苯胺[J];南昌大学学报(理科版);1977年00期

3 穆绍林,孙东豪,石玉军;聚邻甲苯胺的电化学和磁性质[J];物理化学学报;1990年05期

4 陆友玲;钱必东;穆绍林;;聚邻甲苯胺的化学合成与电导率[J];扬州师院学报(自然科学版);1990年01期

5 王利祥,景遐斌,王佛松;不同氧化程度聚邻甲苯胺的合成与表征[J];中国科学(B辑 化学 生命科学 地学);1992年05期

6 高益令;N-乙基邻甲苯胺的合成与应用[J];精细化工;1993年04期

7 孙东豪,丁进青,张展屏;聚邻甲苯胺合成及性能研究[J];塑料工业;1999年01期

8 贺芬霞,刘润柱,段占怀;常压气相催化合成N-乙基邻甲苯胺[J];江苏化工;1999年03期

9 奚美s，

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