| IrO2/Ta2O5-石墨电Fenton降解对硝基酚的研究 |
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| 引用本文： | 杨志新,袁松虎,陆晓华. IrO2/Ta2O5-石墨电Fenton降解对硝基酚的研究[J]. 环境科学与技术, 2005, 28(3): 22-24 |
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| 作者姓名： | 杨志新 袁松虎 陆晓华 |
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| 作者单位： | 华中科技大学环境科学研究所,武汉,430074;华中科技大学环境科学研究所,武汉,430074;华中科技大学环境科学研究所,武汉,430074 |
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| 摘 要： | 采用最高的电化学稳定性钛基镀IrO2/Ta2O5为阳极,以石墨为阴极,通过外加Fe2+,构成一种新的高效电Fenton体系对难降解有机物对硝基酚(4NP)废水进行了降解研究。在最佳工艺条件:恒电流0.3A,Na2SO4浓度3g/L,Fe2+浓度为1mmoL/L,曝气量40mL/min,初始pH为5.30对100mg/L的4NP电解2h,COD去除率达84%。并且钛基镀IrO2/Ta2O5阳极相对于目前常用的Pt、PbO2等阳极具有特有的优势,为废水处理中选择新型阳极材料和新的反应体系提供了新思路。
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| 关 键 词： | 钛基阳极IrO2/Ta2O5 电Fenton 对硝基酚 |
| 文章编号： | 1003-6504(2005)03-0022-03 |
| 修稿时间： | 2004-03-24 |
Electro-Fenton Treatment of 4-nitrophenol Using IrO2/Ta2O5 as Anode and Graphite as Cathode |
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| YANG Zhi-xin,YUAN Song-hu,LU Xiao-hua. Electro-Fenton Treatment of 4-nitrophenol Using IrO2/Ta2O5 as Anode and Graphite as Cathode[J]. Environmental Science and Technology, 2005, 28(3): 22-24 |
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| Authors: | YANG Zhi-xin YUAN Song-hu LU Xiao-hua |
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| Abstract: | Simulated wastewater of 4-nitrophenol (4NP) was electrolyzed by a new system combined IrO_(2)/Ta_(2)O_(5) as anode and graphite as cathode. Ferrous ion was introduced to generate an effective Fenton reaction. Under the optimum conditions of current 0.3A, pH 5.30, air flow rate 40mL/min, c (Na_(2)SO_(4)) 3g/L and c (Fe~(2+)) 1mmoL/L, the final removal of COD could be up to 84% for the degradation of 100mg/L 4NP in 2h. IrO_(2)/Ta_(2)O_(5) anode has some advantages over anode of Pt and PbO_(2), which presents a new way for the option of anode in wastewater treatment. |
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| Keywords: | titanium anode IrO_(2)/Ta_(2)O_(5) electro-Fenton 4-nitrophenol |
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