@article{ART001869404},
author={Harminder Singh and Dawa Tshering B},
title={Removal of methylene blue using lemon grass ash as an adsorbent},
journal={Carbon Letters},
issn={1976-4251},
year={2014},
volume={15},
number={2},
pages={105-112}
TY - JOUR
AU - Harminder Singh
AU - Dawa Tshering B
TI - Removal of methylene blue using lemon grass ash as an adsorbent
JO - Carbon Letters
PY - 2014
VL - 15
IS - 2
PB - Korean Carbon Society
SP - 105
EP - 112
SN - 1976-4251
AB - Wastewater from textile industries is a major cause of water pollution in most developingcountries. In order to address the issues of water pollution and high cost for treatment processes,the use of an inexpensive and environmentally benign adsorbents has been studied.
The objective was to find a better alternative to the conventional methods. Lemon grasswaste (ash) collected from a lemon grass stream distillation subunit in Bhutan was tested fordye removal from aqueous solutions. The study investigated the removal of methylene blueusing the following operational parameters: initial concentration (100-600 mg/L), contacttime, adsorbent dose (0.1- 0.55 gm/100 mL), and pH (3-10). It was found that the percentageremoval of dye increased with a decrease of the initial concentration and increased contacttime and dose of adsorbent. The basic pH solution of dye showed better adsorption capacityas compared to the acidic dye solution. Langmuir and Freundlich adsorption isothermswere fitted to the data well. Data fitted better to Lagergren pseudo 2nd order kinetics thana 1st order kinetic model. Surface morphology was also examined via scanning electronmicroscopy. An elemental analysis was also carried out and the chemical composition andfunctional groups were analyzed using energy dispersive X-ray spectroscopy and Fouriertransform infrared spectroscopy techniques, respectively. The obtained results indicate thatlemon grass ash could be employed as a low cost alternative to commercial activated carbonin wastewater treatment for the removal of dyes.
KW - adsorption;methylene blue;low cost adsorbent;scanning electron microscopy;infrared spectroscopy
DO -
UR -
ER -
Harminder Singh and Dawa Tshering B. (2014). Removal of methylene blue using lemon grass ash as an adsorbent. Carbon Letters, 15(2), 105-112.
Harminder Singh and Dawa Tshering B. 2014, "Removal of methylene blue using lemon grass ash as an adsorbent", Carbon Letters, vol.15, no.2 pp.105-112.
Harminder Singh, Dawa Tshering B "Removal of methylene blue using lemon grass ash as an adsorbent" Carbon Letters 15.2 pp.105-112 (2014) : 105.
Harminder Singh, Dawa Tshering B. Removal of methylene blue using lemon grass ash as an adsorbent. 2014; 15(2), 105-112.
Harminder Singh and Dawa Tshering B. "Removal of methylene blue using lemon grass ash as an adsorbent" Carbon Letters 15, no.2 (2014) : 105-112.
Harminder Singh; Dawa Tshering B. Removal of methylene blue using lemon grass ash as an adsorbent. Carbon Letters, 15(2), 105-112.
Harminder Singh; Dawa Tshering B. Removal of methylene blue using lemon grass ash as an adsorbent. Carbon Letters. 2014; 15(2) 105-112.
Harminder Singh, Dawa Tshering B. Removal of methylene blue using lemon grass ash as an adsorbent. 2014; 15(2), 105-112.
Harminder Singh and Dawa Tshering B. "Removal of methylene blue using lemon grass ash as an adsorbent" Carbon Letters 15, no.2 (2014) : 105-112.
