| 纳米 TiO2光催化处理模拟苯胺废水的响应面优化试验 |
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| 引用本文： | 吕,雷,朱米家,李,辉等.纳米 TiO2光催化处理模拟苯胺废水的响应面优化试验[J].安徽农业科学,2014(1):209-211. |
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| 作者姓名： | 吕 雷 朱米家 李 辉等 |
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| 作者单位： | [1]陕西延长石油集团有限责任公司研究院,陕西西安710075 [2]北京科技大学土木与环境工程学院,北京100083 |
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| 摘 要： | 目的]探讨纳米TiO2光催化处理模拟苯胺废水的最佳反应条件。方法]采用纳米TiO2光催化降解模拟苯胺废水，以TiO2投加量、废水初始pH、光催化反应时间作为影响因素，采用Box—Behnken设计3因素3水平试验，通过响应面预测回归方程模型。结果]回归模型线性度高，R^2达到0．9905，理论值与实际值差异小，证明了预测模型的可靠性。模拟苯胺废水降解的最优条件为：纳米TiO2投加量为100mg／L，初始pH为8．0，光催化反应时间为60min，此时苯胺去除率高达97．8％。结论]该研究为苯胺废水的处理提供亍理论依据。
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| 关 键 词： | 纳米TiO2 光催化降解 苯胺废水 响应面 |
Optimization of Conditions for Aniline Wastewater Treatment Catalyzed by Nano TiO2 Using Response Surface Methodology |
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| Institution: | LV Lei ct al (Research Institute of Yanchang Petroleum Crop. Ltd. ,Xi＇an,Shaanxi 710075) |
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| Abstract: | Objective] The study aimed to discuss the optimal conditions for aniline wastewater treatment catalyzed by nano TiO2. Method] Nano TiO2 was used to catalyze the degradation of aniline in simulated wastewater, and the effects of TiO2 dosage,initial pH of wastewater and reaction time on the removal rate of aniline were analyzed using Box-Behnken Design （BBD） ,and the regression equation was predicted using response surface methodology. Result] The correlation coefficient of the regression model reached 0.990 5 ,and it was reliable because the differ- ence between the actual and predicted value was small. When aniline wastewater with initial pH of 8.0 and TiO2 dosage of 100 mg/L was treated for 60 min,the removal rate of aniline was the highest,namely 97.8%. Conclusion] The research could provide scientific references for the treat- ment of aniline wastewater in future. |
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| Keywords: | Nano TiO2 Phtocatalytic degradation Aniline wastewater Response surface methodology |
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