| 甲苯硝化废水的微电解-Fenton氧化预处理 |
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| 引用本文： | 朱兆连,陈哲,魏翔,王海玲,李爱民. 甲苯硝化废水的微电解-Fenton氧化预处理[J]. 环境科学与管理, 2011, 36(3): 80-83 |
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| 作者姓名： | 朱兆连 陈哲 魏翔 王海玲 李爱民 |
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| 作者单位： | 朱兆连,Zhu Zhaolian(南京工业大学环境学院,江苏南京,210009;南京大学环境学院污染控制与资源化研究国家重点实验室,江苏南京,210093);陈哲,王海玲,Chen Zhe,Wang Hailing(南京工业大学环境学院,江苏南京,210009);魏翔,Wei Xiang(无锡市锡山区建设局,江苏无锡,214101);李爱民,Li Aimin(南京大学环境学院污染控制与资源化研究国家重点实验室,江苏南京,210093) |
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| 基金项目： | 江苏省自然科学基金项目(BK2010559)南京工业大学学科基金资助项目 |
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| 摘 要： | 采用铁碳微电解-Fenton氧化联合工艺处理甲苯硝化废水,探讨了溶液pH值、铁炭投加量、铁炭比例、H2O2投加量和反应时间等因素对微电解-Fenton氧化处理硝化废水的影响规律,获得微电解-Fenton氧化处理硝化废水的最佳工艺条件:废水pH在3左右,铁炭投加量为0.6 g/L,Fe/C质量比为4∶1,反应时间为1.5h,微电解后H2O2投加量为20 ml/L,反应时间为1 h。硝化废水经微电解-Fenton氧化处理后,COD由29 146mg/L降至6 477 mg/L,COD去除率达77.8%,BOD5/COD由0提高到0.37左右,废水可生化性显著增强。
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| 关 键 词： | 铁碳微电解 Fenton氧化 甲苯硝化废水 |
Pretreatment of Wastewater from Toluene Nitration by Iron-Carbon Microelectrolysis and Fenton Oxidation |
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| Zhu Zhaolian,Chen Zhe,Wei Xiang,Wang Hailing,Li Aimin. Pretreatment of Wastewater from Toluene Nitration by Iron-Carbon Microelectrolysis and Fenton Oxidation[J]. Environmental Science and Management, 2011, 36(3): 80-83 |
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| Authors: | Zhu Zhaolian Chen Zhe Wei Xiang Wang Hailing Li Aimin |
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| Affiliation: | 1. College of Environment, Nanjing University of Technology, Nanjing 210009, China; 2. State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing 210093, China; 3. Xishan District Construction Bureau of Wuxi City, Wuxi 214101 ,China) |
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| Abstract: | In this paper, iron - carbon mieroeleetrolysis and Fenton process was tried to treat wastewater from toluene nitration. Factors such as initial pH, Fe/C dosage, Fe/C mass ratio, H2 02 dosage, and reaction time were investgated and their influence mechenisms were discussed. The optimum process conditions are as follows：initial pH is around 3, Fe/C dosage is O. 6 g/L, Fe/C mass ratio is 4：1, and reaction time is 1.5h. H202 was directlyly added to the wasewater after microelectrolysis, the opti- mum dosage of H=O2 is 20 ml/L, and reaction time is 1h. The wastewater COD decreased to 6 477 mg/L from 29 146 mg/Land COD removal reached 77. 8%. BODJCOD was improved to about 0. 37 from 0 and the biodegradability was greatly enhanced. |
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| Keywords: | iron - carbon micreelectrolysis fenton oxidation wastewater from toluene nitration |
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