摘要
以棉杆为吸附材料,研究了吸附时间、溶液p H、吸附剂用量、染料浓度、温度对棉花杆吸附水溶液中碱性品红的影响。用Langmuir和Freundlich等温吸附模型对吸附平衡数据进行非线性回归分析。结果表明,Langmuir等温线方程对平衡实验数据拟合良好,棉杆对碱性品红的吸附行为符合准2级动力学模型吸附,该吸附属于化学吸附。棉杆能有效地去除水中的碱性品红,可作为一种新型吸附剂应用于活性染料废水的处理。
Using cotton stalk as adsorption material,effects of adsorption time,pH,adsorbent dosage,dye concentration and temperature on the adsorption of basic fuchsin in water by cotton stalk were studied.Nonlinear regression analysis of adsorption equilibrium data was conducted with Langmuir adsorption model and Freundlich adsorption model.The results showed that,the adsorption equilibrium data fitted Langmuir isotherm equation well.The adsorption of basic fuchsin by cotton stalk was in line with of the pseudo-second-order model,which belonged to chemical adsorption.Basic fuchsin could be efficiently removed by cotton stalk,and it could be used as a new adsorbent for the treatment of wastewater containing reactive dye.
出处
《水处理技术》
CAS
CSCD
北大核心
2015年第4期66-70,共5页
Technology of Water Treatment
基金
国家自然科学基金项目(21261023)
关键词
棉杆
吸附
碱性品红
cotton stalk
adsorption
basic fuchsin
