| 含铁矿物与UV联合催化H2O2深度处理印染废水 |
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| 引用本文： | 刘晓琛,赵琪,陈泉源,唐聪,卢钧,姚远.含铁矿物与UV联合催化H2O2深度处理印染废水[J].化工环保,2019,39(3):255-261. |
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| 作者姓名： | 刘晓琛 赵琪 陈泉源 唐聪 卢钧 姚远 |
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| 作者单位： | 东华大学 环境科学与工程学院,上海 201620;上海污染控制与生态安全研究院,上海 200092;东华大学 环境科学与工程学院,上海 201620;上海污染控制与生态安全研究院,上海 200092;东华大学 环境科学与工程学院,上海 201620;上海污染控制与生态安全研究院,上海 200092;东华大学 环境科学与工程学院,上海 201620;上海污染控制与生态安全研究院,上海 200092;东华大学 环境科学与工程学院,上海 201620;上海污染控制与生态安全研究院,上海 200092;东华大学 环境科学与工程学院,上海 201620;上海污染控制与生态安全研究院,上海 200092 |
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| 基金项目： | 国家重点研发计划项目（2016YFC0400501,2016YFC0400502） |
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| 摘 要： | 分别以天然含铁矿物黄铜矿、磁铁矿、磁黄铁矿为催化剂,构建了UV-异相类Fenton体系处理实际印染废水生化出水,确定了最优反应条件,并对反应机理进行了初步探讨。实验结果表明:最佳条件下,以黄铜矿、磁铁矿、磁黄铁矿为催化剂的3种异相UV-类Fenton体系对废水的COD去除率分别可达58.83%、57.41%和60.57%,UV254去除率均大于94%;3种天然矿物在重复使用5次后对废水COD的去除率仍保持在50%以上,光催化活性稳定;该体系产生·OH的途径主要有催化剂表面的Fe(Ⅱ)催化H_2O_2分解、H_2O_2光解、溶出的Fe~(2+)催化H_2O_2分解3种,以前两种方式为主。
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| 关 键 词： | 黄铜矿 磁铁矿 磁黄铁矿 UV 异相类Fenton氧化 印染废水 |
| 收稿时间： | 2018-09-07 |
Advanced treatment of printing and dyeing wastewater with H2O2 catalyzed by UV and iron-bearing minerals |
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| LIU Xiaochen,ZHAO Qi,CHEN Quanyuan,TANG Cong,LU Jun,YAO Yuan.Advanced treatment of printing and dyeing wastewater with H2O2 catalyzed by UV and iron-bearing minerals[J].Environmental Protection of Chemical Industry,2019,39(3):255-261. |
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| Authors: | LIU Xiaochen ZHAO Qi CHEN Quanyuan TANG Cong LU Jun YAO Yuan |
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| Affiliation: | 1. College of Environmental Science and Engineering,Donghua University,Shanghai 201620,China;2. Shanghai Institute of Pollution Control and Ecological Safety,Shanghai 200092,China |
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| Abstract: | UV-heterogeneous Fenton-like systems were exploited to treat the biochemical effluent of printing and dyeing wastewater using natural iron-bearing minerals （chalcopyrite,magnetite and pyrrhotite）as catalysts. The optimal reaction conditions were determined and the reaction mechanisms were discussed. The experimental results showed that：Under the optimal conditions,the COD removal rate by the three UV-heterogeneous Fenton-like system with chalcopyrite,magnetite and pyrrhotite as catalysts reached 58.83%,57.41% and 60.57% respectively,the UV254 removal rates were all greater than 94%;The COD removal rates remained above 50% with the three natural minerals reused for 5 times,showing their excellent stability of photocatalytic activity;The origination of ·OH could be H2O2 decomposition catalyzed by Fe（Ⅱ）on surface of the catalysts,H2O2 photolysis and H2O2 decomposition catalyzed by dissolved Fe2+,and the former two were the main ways. |
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| Keywords: | chalcopyrite magnetite pyrrhotite UV heterogeneous Fenton-like oxidation printing and dyeing wastewater |
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