Equilibrium and Kinetic Studies on the Adsorption of Acid Yellow 36 Dye by Pinecone
Background & Aims of the Study: Dyes have significant role in environmental problems, due to their toxic effects on the food chain and sources of water. The purpose of this research was to study the adsorption of acid yellow 36 dye onto pinecone using batch system. Materials & Methods: T...
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2013-11-01
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doaj-4526affb87274d50908b31284d90aa3f2020-11-24T22:36:10ZengQom University of Medical SciencesArchives of Hygiene Sciences2251-92032322-49162013-11-0124158164Equilibrium and Kinetic Studies on the Adsorption of Acid Yellow 36 Dye by PineconeAmir Sheikh Mohammadi0Mahdieh Sardar1Amir Mohammadi2Faramarz Azimi3Nafiseh Nurieh4 Lorestan University of Medical Sciences Lorestan University of Medical Sciences Lorestan University of Medical Sciences Lorestan University of Medical Sciences Lorestan University of Medical Sciences Background & Aims of the Study: Dyes have significant role in environmental problems, due to their toxic effects on the food chain and sources of water. The purpose of this research was to study the adsorption of acid yellow 36 dye onto pinecone using batch system. Materials & Methods: This research was performed at laboratory scale and batch system. Equilibrium isotherms were modeled using Langmuir, Freundlich, and D-R models. Also kinetic studies were done by three models of pseudo first order, pseudo second order, and intra-particle diffusion. Results: The maximum adsorption was achieved at pH 5.0, adsorbent dose 0.7 g/l and contact time 20 min. The equilibrium adsorption capacity (mg/g) increased with increasing initial dye concentration. The Langmuir model (R2=0.99) provided the best fit for the experimental data. The adsorption kinetics were studied and best fit was achieved by pseudo- second order model (R2= 0.96). Conclusions: According to the results obtained of equilibrium and kinetic studies on the adsorption of acid yellow 36, pinecone can be a suitable and efficient adsorbent in the removal of yellow acid 36 dye from industrial wastewater.http://jhygiene.muq.ac.ir/browse.php?a_code=A-10-1-49&slc_lang=en&sid=1Adsorption Acid yellow 36 aqueous solution Azo compounds Isotherm Kinetic |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Amir Sheikh Mohammadi Mahdieh Sardar Amir Mohammadi Faramarz Azimi Nafiseh Nurieh |
spellingShingle |
Amir Sheikh Mohammadi Mahdieh Sardar Amir Mohammadi Faramarz Azimi Nafiseh Nurieh Equilibrium and Kinetic Studies on the Adsorption of Acid Yellow 36 Dye by Pinecone Archives of Hygiene Sciences Adsorption Acid yellow 36 aqueous solution Azo compounds Isotherm Kinetic |
author_facet |
Amir Sheikh Mohammadi Mahdieh Sardar Amir Mohammadi Faramarz Azimi Nafiseh Nurieh |
author_sort |
Amir Sheikh Mohammadi |
title |
Equilibrium and Kinetic Studies on the Adsorption of Acid Yellow 36 Dye by Pinecone |
title_short |
Equilibrium and Kinetic Studies on the Adsorption of Acid Yellow 36 Dye by Pinecone |
title_full |
Equilibrium and Kinetic Studies on the Adsorption of Acid Yellow 36 Dye by Pinecone |
title_fullStr |
Equilibrium and Kinetic Studies on the Adsorption of Acid Yellow 36 Dye by Pinecone |
title_full_unstemmed |
Equilibrium and Kinetic Studies on the Adsorption of Acid Yellow 36 Dye by Pinecone |
title_sort |
equilibrium and kinetic studies on the adsorption of acid yellow 36 dye by pinecone |
publisher |
Qom University of Medical Sciences |
series |
Archives of Hygiene Sciences |
issn |
2251-9203 2322-4916 |
publishDate |
2013-11-01 |
description |
Background & Aims of the Study: Dyes have significant role in environmental problems, due to their toxic effects on the food chain and sources of water. The purpose of this research was to study the adsorption of acid yellow 36 dye onto pinecone using batch system.
Materials & Methods: This research was performed at laboratory scale and batch system. Equilibrium isotherms were modeled using Langmuir, Freundlich, and D-R models. Also kinetic studies were done by three models of pseudo first order, pseudo second order, and intra-particle diffusion.
Results: The maximum adsorption was achieved at pH 5.0, adsorbent dose 0.7 g/l and contact time 20 min. The equilibrium adsorption capacity (mg/g) increased with increasing initial dye concentration. The Langmuir model (R2=0.99) provided the best fit for the experimental data. The adsorption kinetics were studied and best fit was achieved by pseudo- second order model (R2= 0.96).
Conclusions: According to the results obtained of equilibrium and kinetic studies on the adsorption of acid yellow 36, pinecone can be a suitable and efficient adsorbent in the removal of yellow acid 36 dye from industrial wastewater. |
topic |
Adsorption Acid yellow 36 aqueous solution Azo compounds Isotherm Kinetic |
url |
http://jhygiene.muq.ac.ir/browse.php?a_code=A-10-1-49&slc_lang=en&sid=1 |
work_keys_str_mv |
AT amirsheikhmohammadi equilibriumandkineticstudiesontheadsorptionofacidyellow36dyebypinecone AT mahdiehsardar equilibriumandkineticstudiesontheadsorptionofacidyellow36dyebypinecone AT amirmohammadi equilibriumandkineticstudiesontheadsorptionofacidyellow36dyebypinecone AT faramarzazimi equilibriumandkineticstudiesontheadsorptionofacidyellow36dyebypinecone AT nafisehnurieh equilibriumandkineticstudiesontheadsorptionofacidyellow36dyebypinecone |
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