采用响应面法研究在紫外线存在下通过电羟基自由基去除苯酚的实验数据。
Experimental data on the removal of phenol by electro-HO in presence of UV with response surface methodology.
作者信息
Malakootian Mohammad, Nasiri Alireza, Khatami Mehrdad, Mahdizadeh Hakimeh, Karimi Pouria, Ahmadian Mohammad, Asadzadeh Nastaran, Heidari Mohammad Reza
机构信息
Environmental Health Engineering Research Center, Kerman University of Medical Sciences, Kerman, Iran.
Department of Environmental Health, School of Public Health, Kerman University of Medical Sciences, Kerman, Iran.
出版信息
MethodsX. 2019 May 9;6:1188-1193. doi: 10.1016/j.mex.2019.05.004. eCollection 2019.
Phenol is classified as priority pollutant. Phenol and its derivatives are stable in water, environmental contamination, and health concerns that are used as raw material in many chemical industries. This study investigated the removal of phenol by electro-HO/UV system. The response surface methodology (RSM) using central composite design (CCD) was used to modeling and optimization of experimental parameters such as pH, contact time, initial concentration of phenol, concentration of hydrogen peroxide, and current density. The obtained results demonstrated that the efficiency of the electro-HO/UV system was maximum (>99%) under the optimal conditions for the phenol removal from aqueous solutions, 2 mM of hydrogen peroxide concentration, 50 mg/L of initial phenol concentration, pH of 5, 10 mA/cm of current density, reaction time of 25 min and 2.1 kW h/m of energy consumption. Therefore, the electro-HO/UV system is an efficient method for the removal of organic compounds from industrial wastewater.
苯酚被列为优先污染物。苯酚及其衍生物在水中较为稳定，在许多化学工业中用作原材料，会造成环境污染并引发健康问题。本研究考察了电-HO/UV系统对苯酚的去除效果。采用中心复合设计（CCD）的响应面方法（RSM）对pH、接触时间、苯酚初始浓度、过氧化氢浓度和电流密度等实验参数进行建模和优化。所得结果表明，在从水溶液中去除苯酚的最佳条件下，即过氧化氢浓度为2 mM、苯酚初始浓度为50 mg/L、pH为5、电流密度为10 mA/cm²、反应时间为25分钟且能耗为2.1 kW·h/m³时，电-HO/UV系统的效率最高（>99%）。因此，电-HO/UV系统是一种从工业废水中去除有机化合物的有效方法。
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