摘要
用氯化胆碱/尿素低共熔溶剂改性茶叶渣,研究其对苯酚废水的吸附性能,探讨了不同苯酚初始浓度、不同吸附剂用量、不同pH对吸附过程的影响,并利用等温吸附模型对吸附机理进行分析。结果表明,吸附的最好条件为苯酚初始浓度20 mg L^(-1),吸附剂用量为4 g L^(-1),pH=6,吸附率可达90%以上。茶叶渣吸附过程符合Freundlich等温模型,表明该过程是在非均相表面发生的多层吸附。
In this paper,choline chloride/urea low eutectic solvent is used to modify tea residue to study its adsorption performance on phenol wastewater.The effects of different initial phenol concentrations,different adsorbent dosages,and different pH levels on the adsorption process are investigated.Adsorption mechanism is analyzed using an isothermal adsorption model.The results show that the best conditions for adsorption are an initial concentration of phenol of 20 mg L^(-1),an adsorbent dosage of 4 g L^(-1),and pH=6.The adsorption rate can be as high as more than 90%.The adsorption process of tea residue is consistent with the Freundlich isothermal model,indicating that the process is a multi-layer adsorption occurring on a non-homogeneous phase surface.
作者
李倩
蒋德星
张宇
黄青
LI Qian;JIANG Dexing;ZHANG Yu;HUANG Qing(School of Physics and Mechanical&Electrical Engineering,Hubei University of Education,Wuhan 430205,China;Hubei Environmental Purification Material Science and Engineering Technology Research Center,Hubei University of Education,Wuhan 430205,China)
出处
《湖北第二师范学院学报》
2025年第8期9-13,37,共6页
Journal of Hubei University of Education
基金
2024年度湖北第二师范学院校级教学研究项目“新工科视域下‘化工仿真实训’一流课程的建设与探索”(X2024030)
2024年度湖北省普通本科高校新工科实践教学“新工科背景下化工仿真实训的数智化教学探索与实践”。
关键词
氯化胆碱/尿素低共熔溶剂
茶叶渣
苯酚
等温吸附
Choline chloride/urea low eutectic solvent
tea residue
phenol
isotherm adsorption
作者简介
李倩(1984-),女,河南信阳人,副教授,博士,研究方向为资源与环境综合利用。
