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

Yanfang Feng, Fan Yang, Yongqian Wang, Ma. Li, Wu. Yonghong, Philip Kerr, Linzhang Yang

Research output: Contribution to journalArticle

86 Citations (Scopus)

Abstract

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. © 2011 Elsevier Ltd.
Original languageEnglish
Pages (from-to)10280-10285
Number of pages6
JournalBioresource Technology
Volume102
Issue number22
Early online date27 Aug 2011
DOIs
Publication statusPublished - Nov 2011

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