Study on cationic dye adsorption of bio-chars prepared from thermal-alkaline-pretreated sludge

被引：0
|
作者：
Zhai Shimin [1 ,2 ]
Xiao Benyi [2 ]
Guo Xuesong [2 ]
Liu Rongzhan [1 ]
机构：
[1] College of Textiles and Clothing,Qingdao University
[2] Research Center for Eco-Environmental Science,Chinese Academy of
来源：
石化技术 | 2017年 / 24卷 / 04期
关键词：
bio-char; cationic dye; adsorption; sewage sludge; thermal-alkaline pretreatment;
D O I：
暂无
中图分类号：
O647.3 [吸附]; X703 [废水的处理与利用];
学科分类号：
摘要：
Sludge bio-char(SC)and thermal-alkaline treated sludge bio-char(TSC)were prepared from municipal sewage sludge(RS)and thermal-alkaline treated sludge sediments(STAS)through fast pyrolysis under nitrogen existence condition to remove cationic red X-GRL(A)and cationic yellow X-6G(B)from aqueous solutions.Results of adsorption experiment show that the adsorption capacities of TSC are better than the adsorption capacities of SC.The highest adsorption capacity of 47.65 mg/g for A and 45.41mg/g for B are obtained by TSC in an isotherm experiment at 2.0 g/L dosage and 25°C temperature.TSC adsorption for the two kinds of cationic dyes can be well fitted by pseudo-second-order kinetics model and Langmuir isotherm model.
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页码：33 / 34
页数：2
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