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[1]马文梅,王营茹,明银安*,等.锂盐改性累托石处理染料废水[J].武汉工程大学学报,2012,(2):19-23.
　MA Wen\|mei,WANG Ying\|ru,MING Yin\|an,et al.Dye wastewater treatment by rectorite modified by lithium[J].Journal of Wuhan Institute of Technology,2012,(2):19-23.
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《武汉工程大学学报》[ISSN:1674-2869/CN:42-1779/TQ]

卷:
期数:
2012年2期
页码:
19-23
栏目:
资源与土木工程
出版日期:
2012-03-10

文章信息/Info

Title:
Dye wastewater treatment by rectorite modified by lithium
文章编号:
16742869(2012)2001905
作者:
马文梅; 王营茹; 明银安*; 廖金阳; 李丽荣
武汉工程大学环境与城市建设学院，湖北 武汉 430074
Author(s):
MA Wen\|mei;   WANG Ying\|ru;   MING Yin\|an;   LIAO Jin\|yang;   LI Li\|rong
School of Environmental and Civil Engineering, Wuhan Institute of Technology, Wuhan 430074 , China
关键词:
碳酸锂; 改性; 累托石; 亚甲基蓝; 热力学; 动力学
Keywords:
lithium carbonate;  ;  modify;  ;  rectorite;  ;  methylene blue trihydrate;  ;  thermodynamics;  ;  dynamics
分类号:
X703
DOI:
-
文献标志码:
AAdoi:103969/jissn1674286920122004
摘要:
采用锂盐对累托石进行改性，研究其最佳改性条件及吸附亚甲基蓝的热力学和动力学规律.以碳酸锂为改性剂，碳酸锂与草酸用量比为08∶1，试验出改性的最佳条件为：碳酸锂与累托石质量比为5%，固液比为1∶20，改性时间为3 h.改性后累托石对亚甲基蓝溶液的吸附性能明显优于未改性的累托石，吸附量提高了65%；热力学和动力学探究表明，改性累托石对亚甲基蓝的吸附过程符合Langmuir规律，动力学符合Lagergren准二级动力学规律.
Abstract:
Experiment was done to modify rectorite by lithium. Study was made on the best modifying conditions and adsorption principle of thermodynamics and dynamics for methylene blue trihydrate, which was an innovation for modifying of rectorite, and could give a new push to application in environment engineering. With lithium carbonate as modifying thing and the dosage ratio of lithium carbonate to oxalic acid being 0.8 to 1, many experiments were done to make out the best modifying conditions of rectorite, the mass ratio of lithium carbonate to rectorite was 5 percent, the ratio of solid to liquid was 1 to 20, the modifying time was 3 hours. Rectorite modified by lithium (Rec\|Li) had better adsorption capability than original rectorite in evidence, and the adsorption quantity of Rec\|Li had been raised 65 percent for methylene blue trihydrate. Study on thermodynamics and dynamics shows that isothermal adsorption law of Rec\|Li for methylene blue trihydrate can well be described by Langmuir model, and adsorption kinetics law conforms to the fitting of Lagergren second order equation.

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