摘要
目的研究光电Fenton氧化法处理染料废水的脱色效果,确定处理染料废水的最佳工艺条件.方法在自制的电化学反应器中,通过光电Fenton氧化法处理染料废水试验,确定初始p H值、槽电压、曝气量、Fe2+投加量和支持电解质投加量对染料脱色效果的影响;通过Design Expert软件建立数学模型,最终拟合最优反应条件,应用响应曲面分析法模拟分析初始p H值、槽电压和曝气量3个因素在染料废水脱色过程中的显著性和交互性.结果响应曲面分析法确定的最佳脱色工艺条件为:p H值4.25、槽电压15.73 V、曝气量0.25 L/min,在此条件下,脱色率为97.186 9%;各因素对体系脱色效果影响大小为:p H值>槽电压>曝气量;各因素交互作用对体系脱色效果影响大小为:槽电压&p H值>p H值&曝气量>槽电压&曝气量.结论光电Fenton氧化法处理染料废水的脱色效果较好.
To study the decoloration process, the optimum technological effect of dye wastewater by the conditions were determined. In Photoelectric Fenton oxidation the self-made electrochemical reactor, the treatment of dye wastewater by photo Fenton oxidation process was used. The model was established by Expert Design software, and the optimal reaction conditions were fitted and the mathematical model was established. And the significance and interaction of the 3 factors in the process of decolorization of the dye wastewater by the factors of the response surface analysis method, the initial pH value, the tank voltage and the aeration rate. Response surface methodology was used to determine the optimal decolorization conditions ：pH 4.25 ,cell voltage 15.73 V, aeration rate 0.25 L/min,and the decolorizafion rate was 97. 1869%. Effect of various factors on decoloration system is ： pH 〉 slot voltage 〉 air; Effect of the interaction between various factors on decolorizing is：bath voltage ＆ pH 〉 pH ＆ air 〉 cell voltage ＆ air. The results showed that the decoloration effect of dye wastewater by the Photoelectric Fenton oxidation process was good.
出处
《沈阳建筑大学学报（自然科学版）》
CAS
CSCD
北大核心
2017年第1期134-142,共9页
Journal of Shenyang Jianzhu University：Natural Science
基金
国家水体污染重大专项治理项目(2014ZX07202-0114)
辽宁省自然科学基金优秀人才培育项目(2014020073)
沈阳建筑大学学科涵育项目(XKHY-35)
沈阳建筑大学科技项目(2014043)
