| Removal of TOC and Color in Bleaching Effluents from Straw Pulp and Paper Mill by Fe^0- H2O2 Process |
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| 作者姓名： | 于水利 刘汝鹏 刘亚男 |
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| 作者单位： | [1]School of Municipal and Environmental Engineering, Harbin Institute of Technology, Harbin 150090 [2]College of Envirorrmental Science and Engineering, Donghua University, Shanghai 201620 |
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| 摘 要： | TOC and color in the bleaching effluent from straw pulp paper process could not reach draining standard after its treatment by a biochemical process. In this study, advanced treatment by integrated micro-electrolysis （Fe^0） method and Fenton-like process was investigated under various conditions, i.e. pH, Fe/C ratio, initial I-I2O2 concentration and carrier gas. Results showed that Fe/C ratio（V/V = 1.5）, larger H2O2 dosage around 50 rag/L, lower pH（pH= 3） turned out to be particularly efficient. Temperature was a key parameter, remarkably increasing reaction rates. Carrier air not only improved reaction efficiency, but also saved H2O2 dosage. Chlorinated organic compounds could be reductive dechlorinated by Fe^0 reaction and oxidated by OH produced from Fenton process. The combination of Fe^0 and H2O2 reactions had been proved to be highly effective for the advanced treatment of such a type of wastewaters, and important advantages concerning the application in the study.
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| 关 键 词： | 深度处理 绿色化学 有机化合物 维电解 造纸厂 |
| 收稿时间： | 2005-10-08 |
Removal of TOC and Color in Bleaching Effluents from Straw Pulp and Paper Mill by Fe0- H2O2 Process |
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| YU Shui-li,LIU Ru-peng,LIU Ya-nan.Removal of TOC and Color in Bleaching Effluents from Straw Pulp and Paper Mill by Fe^0- H2O2 Process[J].Journal of Donghua University,2006,23(3):114-119. |
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| Authors: | YU Shui-li LIU Ru-peng LIU Ya-nan |
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| Abstract: | TOC and color in the bleaching effluent from straw pulp paper process could not reach draining standard after its treatment by a biochemical process. In this study, advanced treatment by integrated micro-electrolysis (Fe0) method and Fenton-like process was investigated under various conditions, i.e. pH, Fe/C ratio, initial H2O2 concentration and carrier gas. Results showed that Fe/C ratio(V/V =1.5), larger H2O2 dosage around 50 mg/L, lower pH(pH=3) turned out to be particularly efficient. Temperature was a key parameter, remarkably increasing reaction rates.Carrier air not only improved reaction efficiency, but also saved H2O2 dosage. Chlorinated organic compounds could be reductive dechlorinated by Fe0 reaction and oxidated by · OH produced from Fenton process. The combination of Fe0 and H2O2 reactions had been proved to be highly effective for the advanced treatment of such a type of wastewaters, and important advantages concerning the application in the study. |
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| Keywords: | straw pulp and paper mill bleaching effluents advanced treatment chlorinated organic compounds micro-electrolysis Fenton-like process |
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