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International Journal of Environment Science and Technology
Center for Environment and Energy Research and Studies (CEERS)
ISSN: 1735-1472
EISSN: 1735-2630
Vol. 10, No. 4, 2013, pp. 865-870
Bioline Code: st13085
Full paper language: English
Document type: Short Communication
Document available free of charge

International Journal of Environment Science and Technology, Vol. 10, No. 4, 2013, pp. 865-870

 en Biosorption of methylene blue from aqueous solutions by Typha angustata check for this species in other resources phytomass
Rehman, M. Saif Ur & Han, J.I.

Abstract

The objective of this study was to investigate the biosorption of an azo dye (Methylene blue) by a wetland phytomass ( Typha angustata check for this species in other resources ) under post-phytoremediation scenario. Thus, the phytomass was used without any chemical modification. The batch adsorption experiments were conducted to evaluate the effects of contact time and temperatures (25–45 °C) on the adsorption of methylene blue (MB) from aqueous solution by cattail phytomass (CP). More than 80 % of MB dye was removed from the aqueous solution within first 10 min of the experiment. Langmuir isotherm was modeled to describe the monolayer adsorption of MB dye (R2 = 0.995) with the maximum adsorption capacity of 8.1 mg/g at 25 °C. Pseudo-second-order kinetic model adequately described the kinetics of absorption process (R2 = 0.999). The adsorption of MB on the cattail phytomass was a spontaneous and endothermic process that was governed by chemisorption. Hence, CP could be applied as a potential low cost biosorbent to treat dyeing wastewater.

Keywords
Biosorption; Methylene blue; Phytomass; Typha spp.

 
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