CrS＠酵母复合吸附剂对亚甲基蓝的吸附特性研究

摘要

研究了 CrS＠酵母复合吸附剂对阳离子型染料亚甲基蓝的吸附性能，考察了在不同 pH 值、流速 V、床高 H、初始浓度 c0条件下对亚甲基蓝染料的吸附效果，以探究最佳吸附条件。结果表明，在溶液 pH 值为3，流速5 mL／min，床高 H ＝1．5 cm，初始浓度 c ＝50 mg／L 时吸附效果最好。采用动力学模型 Yoon-Nelson 对不同条件下吸附曲线进行分析，相关系数 R2均大于0．9，本次研究结果对于甲基蓝废水的处理具有很重要的参考价值，并且对于我国染料废水的处理可提供借鉴。%CrS@yeast composite adsorbents were used to treat the methylene blue aqueous solutions.Fac-tors affecting the adsorption process,such as different pH values,flow velocity V,bed height H,initial con-centration c0 were investigated respectively,which to explore the best adsorption conditions.Results show that the solution pH =3,velocity 5 mL/min,the bed height H =1.5 cm,the initial concentration c0 =50 mg/L can reach the best adsorption condition.And this experiment uses kinetic model Yoon-Nelson to analyze the adsorption curve under different conditions,correlation coefficient R2 >0.9.The results of this study for the methylene blue wastewater treatment has a very important reference value,and give some ref-erence for the treatment of dye wastewater.