电催化氧化处理工业苯胺废水工艺的研究
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摘要
采用自制电催化设备处理实际苯胺工业废水,探讨在电催化处理过程中各种单因素对处理效果的影响,并结合正交实验及成本问题确定最优处理条件为:电极形貌为网状、pH值为5.41,处理时间为60 min、电解质NaCl的投加量为4 g/L,电流密度为25 mA/cm~2,此时苯胺的去除率为99%,废水中COD的去除率达到60%以上,对电催化氧化处理苯胺废水的应用提供基础。
The self-made electrocatalystic equipment was used to treat the aniline industrial wastewater, and the effects of single factor on the treatment effect in the treatment process were researched. Combined with the orthogonal experiment and the cost, the best treatment conditions were determined. The electrode structure was meshed, pH value was 5.41, the processing time was 60 min, the electrolyte NaCl dosage was 4 g/L, and current density was 25 mA/cm~2. The removal rate of aniline was 99%, and COD removal rate could reach over 60%, which would provide basis for the application of electrocatalytic oxidation treatment of aniline wastewater.
The self-made electrocatalystic equipment was used to treat the aniline industrial wastewater, and the effects of single factor on the treatment effect in the treatment process were researched. Combined with the orthogonal experiment and the cost, the best treatment conditions were determined. The electrode structure was meshed, pH value was 5.41, the processing time was 60 min, the electrolyte NaCl dosage was 4 g/L, and current density was 25 mA/cm~2. The removal rate of aniline was 99%, and COD removal rate could reach over 60%, which would provide basis for the application of electrocatalytic oxidation treatment of aniline wastewater.
引文
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[2] 王孝华.苯胺废水处理的新进展[J].工业水处理,2010,30(2):11-14.
[3] 聂永平,邓正栋,袁进.苯胺废水处理研究进展[J].环境污染治理技术与设备,2003,4(3):77- 81.
[4] 郑金来,李君文,晁福寰.苯胺、硝基苯和三硝基甲苯生物降解研究进展[J].微生物学通报,2001,28(5):85-88.
[5] 朱利中,王晴.阴-阳离子有机膨润土吸附水中苯胺、苯酚的性能[J].环境科学,2000,21(4):42-46.
[6] 朱利中,徐霞.西湖底泥对水中苯胺,苯酚的吸附性能及机理[J].环境科学,2000(2):28-31.
[7] 冷文华,成少安,刘鸿,等.负载型二氧化钛光催化降解苯胺[J].环境科学学报,2000,20(4):499-503.
[8] 冯玉杰,沈宏,崔玉虹,等.钛基二氧化铅电催化电极的制备及电催化性能研究[J].分子催化,2002,16(3):181-186.
[9] 李慧,王建中,杨建涛.电催化氧化法处理苯胺废水实验研究[J].环境科学与管理,2010,35(5):59-62.
[10] Rajeshwark A,Ibanez J G.Electrochemistry and the environment[J].J.Appl.Electrochem.,1994,24(11):1077-1091.
[11] 王心芳,孙宗光,黄叶茹.水和废水监测分析方法[M].北京:中国环境出版社,2002:515-517.
[12] 黄兴华,王黎明,关志成,等.电化学法处理染料废水的研究[J].高压电器,2002,38(5):22-26.
[13] 王波.钛基RuOx-PdOy电极电催化氧化降解苯胺研究[D].成都:四川大学化学学院,2005:42-43.