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Kinetic and isotherm study of Malachite green dye removal using Imperata Cylindrica

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Main Author: Liew, Onn Kei
Other Authors: Anis Atikah, Ahmad
Format: Learning Object
Language:English
Published: Universiti Malaysia Perlis (UniMAP) 2021
Subjects:
Wastewater treatment
Dyes
Imperata Cylindrica (cogon grass)
Adsorbent
Isotherm study
Malachite Green
Online Access:http://dspace.unimap.edu.my:80/xmlui/handle/123456789/73871
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spelling my.unimap-738712022-01-27T08:30:29Z Kinetic and isotherm study of Malachite green dye removal using Imperata Cylindrica Liew, Onn Kei Anis Atikah, Ahmad School of Bioprocess Engineering Wastewater treatment Dyes Imperata Cylindrica (cogon grass) Adsorbent Isotherm study Malachite Green Access is limited to UniMAP community. This research encompasses on the adsorption of MG dye from waste water by using Imperata cylindrica (cogon grass) as a low cost adsorbent as compared to chemical adsorbents. Apart from, coagulation and membrane filtration, MG dye is found to be easily extracted from waste water by adsorption. Batch adsorption on cogon grass as a function of various parameters such as solution pH (4-8), initial dye concentration (20-120 mg/L) and adsorbent dosage (0.1-0.5 g) was studied. Cogon grass leaf-based adsorbent was found effective in MG dye removal where the maximum sorption capacity found to be 30.67 mg/g and the maximum percentage removal was 96.03 %. The optimum condition for the adsorption to occur were at pH 8 with adsorption capacity 29.36 mg/g, 50 mg/L of initial MG dye concentration with adsorption capacity 29.45 mg/g and 0.3 g adsorbent dosage with 27.73 mg/g. The rates of adsorption were found well fitted to pseudo-second order model which has higher-correlation coefficient than pseudo-first order, while equilibrium studies revealed that the adsorption process follow the Langmuir isotherm. The cogon grass leaf-based adsorbent were characterized by scanning electron microscopy (SEM) and Fourier transform infrared (FT-IR) spectroscopy. SEM images of cogon grass indicate that it has porous and rough surface that provide micropores for adsorption process occurred. FTIR analysis was showed that formation of chemical bond between functional groups present on cogon grass and MG. Hence, cogon grass leaf powder has a potential to be developed as low cost adsorbent for the removal of the MG dye. 2021 2022-01-27T08:30:29Z 2022-01-27T08:30:29Z 2017-06 Learning Object http://dspace.unimap.edu.my:80/xmlui/handle/123456789/73871 en Universiti Malaysia Perlis (UniMAP)
institution Universiti Malaysia Perlis
building UniMAP Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Malaysia Perlis
content_source UniMAP Library Digital Repository
url_provider http://dspace.unimap.edu.my/
language English
topic Wastewater treatment
Dyes
Imperata Cylindrica (cogon grass)
Adsorbent
Isotherm study
Malachite Green
spellingShingle Wastewater treatment
Dyes
Imperata Cylindrica (cogon grass)
Adsorbent
Isotherm study
Malachite Green
Liew, Onn Kei
Kinetic and isotherm study of Malachite green dye removal using Imperata Cylindrica
description Access is limited to UniMAP community.
author2 Anis Atikah, Ahmad
author_facet Anis Atikah, Ahmad
Liew, Onn Kei
format Learning Object
author Liew, Onn Kei
author_sort Liew, Onn Kei
title Kinetic and isotherm study of Malachite green dye removal using Imperata Cylindrica
title_short Kinetic and isotherm study of Malachite green dye removal using Imperata Cylindrica
title_full Kinetic and isotherm study of Malachite green dye removal using Imperata Cylindrica
title_fullStr Kinetic and isotherm study of Malachite green dye removal using Imperata Cylindrica
title_full_unstemmed Kinetic and isotherm study of Malachite green dye removal using Imperata Cylindrica
title_sort kinetic and isotherm study of malachite green dye removal using imperata cylindrica
publisher Universiti Malaysia Perlis (UniMAP)
publishDate 2021
url http://dspace.unimap.edu.my:80/xmlui/handle/123456789/73871
_version_ 1729704654012416000
score 13.214268

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