含酚模拟废水电催化氧化实验研究

Experimental Study on Phenol-Containing Simulation Wastewater Treatment by Electro-Catalytic Oxidation Method

电催化氧化法因其特有的优点，现已成为水处理领域研究的热点。实验采用自制实验装置，用电池中碳棒为电极，对含酚模拟废水进行电催化氧化处理。着重考察溶液温度、电解时间、电解质浓度、电压、溶液pH值等影响因素在电解过程中对苯酚去除率的影响，并分析其原因。实验表明：在常温、电压为5．5V、电解质（Na2SO4）浓度为20．0g／L、pH值为8．0～9．0、电解120min时，苯酚去除率接近100．0％。因此电催化氧化法作为一种高效、简便的废水处理技术具有一定的应用潜力。

Electro-catalytic oxidation method has become a research hotspot in water treatment field because of its unique advantages. In the experiments of this paper, the homemade experimental device is adopted and the carbon stick of dry batteries is taken as electrodes to treat the phenol-containing simulation wastewater by electro-catalytic oxidation method. The investigations is focused on the effects of solution temperature, electrolysis time, electrolyte concentration, voltage, pH value, and other factors on the removal of phenol in the electrolytic process. Also, the causes are analyzed. The experiments show that the phenol removal rate is close to 100. 0% under the condition of room temperature, voltage of 5.5 V, electrolyte （Na2SO4） concentration of 20. 0 g/L, pH value of 8. 0-9.0, electrolysis 120 min. Therefore, as a highly efficient, easy wastewater treatment technology, the electro-catalytic oxidation method has certain application potential.