| 含甲醛毒性废水电-Fenton试剂氧化技术研究 |
| 摘要点击 1726 全文点击 1725 投稿时间：2002-12-10 修订日期：2003-04-28 |
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| 中文关键词 含甲醛废水 电-Fenton反应 三维填充电极 催化氧化 |
| 英文关键词 formaldehyde-containing wastewater electro-fenton reaction three-dimensional filled electrode catalytic oxidation |
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| 中文摘要 |
| 研究了以活性炭粒子为填充电极的填充床式电-Fenton反应装置处理自配甲醛毒性有机废水时各影响因子的作用机制,通过正交实验和单因素实验确定了各影响因子的最佳操作条件为:反应时间90min,反应体系pH值＜3.5,涂膜炭填充比例40%,电压25V,Fe2++浓度300mg/L,反应温度30℃～40℃结合氧化产物的紫外光谱分析,提出甲醛电-Fenton氧化反应机理利用电-Fenton试剂氧化法对实际洗胶废水进行连续处理,甲醛及CODCr的去除率分别在90%及30%左右,运行费用较Fenton试剂法降低42.3%. |
| 英文摘要 |
| The mechanisms of affecting factors in treating formaldehyde-containing organic wastewater by electro-Fenton reactor which had granular carbon as the filled electrode were investigated. The optimal operating conditions determined by orthogonal experiments and individual factor experiments were as following: 90min, 25V, 30℃～40℃, insulating carbon content 40%, Fe2+ concentration 300mg/L at pH<3.5. Formaldehyde degradation mechanisms were proposed after analyzing the oxidation products with UV absorbance spectrum. Experiment of treating the actual wastewater using this method were also performed.The removal rates of formaldehyde and CODCr were about 90%, 30%, respectively. In addition, the operating cost was 42.3% less than that of treatment by Fenton method. |
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