Basic dye adsorption onto an agro-based waste material - Sesame hull (Sesamum indicum L.)

被引：128

作者：

Feng, Yanfang ^{[1
,3
]}

Yang, Fan ^{[1
]}

Wang, Yongqian ^{[1
,3
]}

Ma, Li ^{[1
]}

Wu, Yonghong ^{[1
]}

Kerr, Philip G. ^{[2
]}

Yang, Linzhang ^{[1
]}

机构：

[1] Chinese Acad Sci, Inst Soil Sci, State Key Lab Soil & Sustainable Agr, Nanjing 210008, Jiangsu, Peoples R China

[2] Charles Sturt Univ, Sch Biomed Sci, Wagga Wagga, NSW 2678, Australia

[3] Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China

来源：

BIORESOURCE TECHNOLOGY | 2011年 / 102卷 / 22期

基金：

中国国家自然科学基金;

关键词：

Methylene blue; Biosorption; Sesame hull (Sesamum indicum L.); METHYLENE-BLUE ADSORPTION; LOW-COST ADSORBENTS; AQUEOUS-SOLUTIONS; LEAF POWDER; ACTIVATED CARBONS; REMOVAL; KINETICS; SORPTION; EQUILIBRIUM; THERMODYNAMICS;

D O I：

10.1016/j.biortech.2011.08.090

中图分类号：

S2 [农业工程];

学科分类号：

0828 ;

摘要：

The aim of this project was to establish an economical and environmentally benign biotechnology for removing methylene blue (MB) from wastewater. The adsorption process of MB onto abandoned sesame hull (Sesamum indicum L.) (SH) was investigated in a batch system. The results showed that a wide range of pH (3.54-10.50) was favorable for the adsorption of MB onto SH. The Langmuir model displayed the best fit for the isothermal data. The exothermic adsorption process fits a pseudo-second-order kinetic model. The maximum monolayer adsorption capacity (359.88 mg g(-1)) was higher than most previously investigated low-cost bioadsorbents (e.g., peanut hull, wheat straw, etc.). This study indicated that sesame hull is a promising, unconventional, affordable and environmentally friendly bio-measure that is easily deployed for removing high levels of MB from wastewater. (C) 2011 Elsevier Ltd. All rights reserved.

引用

页码：10280 / 10285

页数：6

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