响应曲面法优化生物质炭复合材料处理亚甲基蓝废水的研究

发布时间：2018-05-23 10:39

  本文选题：稀土 + 向日葵秸秆　； 参考：《内蒙古师范大学学报(自然科学汉文版)》2017年01期

【摘要】：以废弃向日葵秸秆为原料,采用机械混合法制备了多元稀土/生物质炭复合催化剂,用空气作为氧化剂催化氧化处理模拟印染废水亚甲基蓝.在单因素实验的基础上,采用Box-Beknhen实验设计,以亚甲基蓝脱色率和COD去除率为响应值,对影响催化氧化法最重要的4个因素,即催化剂投加浓度、曝气量、温度及pH进行优化.通过对二次多项式方程求解得知:复合催化剂的投加浓度为8.67g/L、曝气量2.5L/min、温度21℃、pH值为12时,亚甲基蓝脱色率的预测值和实验值分别为100.00%、99.61%;投加浓度7.33g/L、曝气量0.64L/min、温度30℃、pH值为10时,亚甲基蓝COD去除率的预测值和实验值分别为77.65%、75.81%.理论值与实际值非常接近,说明建立的模型合理可行.
[Abstract]:Using waste sunflower straw as raw material, the multicomponent rare earth / biomass carbon composite catalyst was prepared by mechanical mixing method. Air was used as oxidant for catalytic oxidation of methylene blue in simulated printing and dyeing wastewater. On the basis of single factor experiment, using Box-Beknhen experimental design, with methylene blue decolorization rate and COD removal rate as response value, the most important four factors affecting catalytic oxidation method, namely catalyst concentration, aeration rate, temperature and pH, were optimized. The solution of quadratic polynomial equation shows that the concentration of the composite catalyst is 8.67 g / L, the aeration rate is 2.5 L / min, the temperature is 21 鈩，

本文编号：1924390