Adsorptive Removal of Methylene Blue in Aqueous Solutions Through Raw and Modified Cantaloupe Peel Wastes: Kinetic and Isotherm Study
Since large amounts of agricultural wastes are produced in Iran and these wastes have lignocellulosic nature, the current study was performed to survey the adsorption performance of methylene blue dye from aqueous solutions by means of raw and modified cantaloupe peel. The adsorbents used were chara...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Hamadan University of Medical Sciences
2020-06-01
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| Series: | Avicenna Journal of Environmental Health Engineering |
| Subjects: | |
| Online Access: | https://ajehe.umsha.ac.ir/PDF/ajehe-7-35.pdf |
| _version_ | 1797670178933178368 |
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| author | Mohammad Reza Samarghandi Kazem Godini Ghasem Azarian Ali Reza Ehsani Hassan Zolghadrnasab |
| author_facet | Mohammad Reza Samarghandi Kazem Godini Ghasem Azarian Ali Reza Ehsani Hassan Zolghadrnasab |
| author_sort | Mohammad Reza Samarghandi |
| collection | DOAJ |
| description | Since large amounts of agricultural wastes are produced in Iran and these wastes have lignocellulosic nature, the current study was performed to survey the adsorption performance of methylene blue dye from aqueous solutions by means of raw and modified cantaloupe peel. The adsorbents used were characterized using techniques like scanning electron microscope (SEM), as well as Fourier transform infrared spectroscopy (FTIR). In this study, the effects of a few key variables including pH, reaction time, dye concentration, adsorbent dosage and temperature on the adsorption performance were investigated. Optimum values were attained at 0.04 and 0.08 g doses of modified and raw cantaloupe peel, pH of 7 after mixing for 120 and 90 minutes for raw and modified cantaloupe peel, respectively. The equilibrium information was fitted to the Langmuir, Freundlich, Temkin, and Dubinin-Radushkevich equations and the respective data for all models were tested. An increase in adsorbent dose and temperature caused the efficiency to rise. The mechanism and rate of adsorption were ascertained by analyzing the experimental data at various contact times according to traditional kinetic equations: pseudo-first-order and second order, Elovich, and intra-particle diffusion. The findings illustrated that the data accorded closely with the pseudo-second-order model. Moreover, it was found that these wastes can be applied to remove environmental pollutants, particularly methylene blue dye. |
| first_indexed | 2024-03-11T20:55:58Z |
| format | Article |
| id | doaj.art-9830cea94e4f4ae183043055c40d4a2a |
| institution | Directory Open Access Journal |
| issn | 2423-4583 |
| language | English |
| last_indexed | 2024-03-11T20:55:58Z |
| publishDate | 2020-06-01 |
| publisher | Hamadan University of Medical Sciences |
| record_format | Article |
| series | Avicenna Journal of Environmental Health Engineering |
| spelling | doaj.art-9830cea94e4f4ae183043055c40d4a2a2023-09-30T09:49:58ZengHamadan University of Medical SciencesAvicenna Journal of Environmental Health Engineering2423-45832020-06-0171354610.34172/ajehe.2020.06ajehe-4091Adsorptive Removal of Methylene Blue in Aqueous Solutions Through Raw and Modified Cantaloupe Peel Wastes: Kinetic and Isotherm StudyMohammad Reza Samarghandi0Kazem Godini1Ghasem Azarian2Ali Reza Ehsani3Hassan Zolghadrnasab4Department of Environmental Health Engineering, School of Public Health and Research Center for Health Sciences, Hamadan University of Medical Sciences, Hamadan, Iran.Environmental Health Research Center, Research Institute for Health Development, Kurdistan University of Medical Sciences, Sanandaj, Iran.Research Center for Health Sciences, Hamadan University of Medical Sciences, Hamadan, IR Iran.Department of Environmental Health Engineering, School of Public Health and Research Center for Health Sciences, Hamadan University of Medical Sciences, Hamadan, Iran.Department of Environmental Health Engineering, School of Public Health and Research Center for Health Sciences, Hamadan University of Medical Sciences, Hamadan, Iran.Since large amounts of agricultural wastes are produced in Iran and these wastes have lignocellulosic nature, the current study was performed to survey the adsorption performance of methylene blue dye from aqueous solutions by means of raw and modified cantaloupe peel. The adsorbents used were characterized using techniques like scanning electron microscope (SEM), as well as Fourier transform infrared spectroscopy (FTIR). In this study, the effects of a few key variables including pH, reaction time, dye concentration, adsorbent dosage and temperature on the adsorption performance were investigated. Optimum values were attained at 0.04 and 0.08 g doses of modified and raw cantaloupe peel, pH of 7 after mixing for 120 and 90 minutes for raw and modified cantaloupe peel, respectively. The equilibrium information was fitted to the Langmuir, Freundlich, Temkin, and Dubinin-Radushkevich equations and the respective data for all models were tested. An increase in adsorbent dose and temperature caused the efficiency to rise. The mechanism and rate of adsorption were ascertained by analyzing the experimental data at various contact times according to traditional kinetic equations: pseudo-first-order and second order, Elovich, and intra-particle diffusion. The findings illustrated that the data accorded closely with the pseudo-second-order model. Moreover, it was found that these wastes can be applied to remove environmental pollutants, particularly methylene blue dye.https://ajehe.umsha.ac.ir/PDF/ajehe-7-35.pdfeffluentmethylene blue removalcantaloupe peel wastekineticisotherm |
| spellingShingle | Mohammad Reza Samarghandi Kazem Godini Ghasem Azarian Ali Reza Ehsani Hassan Zolghadrnasab Adsorptive Removal of Methylene Blue in Aqueous Solutions Through Raw and Modified Cantaloupe Peel Wastes: Kinetic and Isotherm Study Avicenna Journal of Environmental Health Engineering effluent methylene blue removal cantaloupe peel waste kinetic isotherm |
| title | Adsorptive Removal of Methylene Blue in Aqueous Solutions Through Raw and Modified Cantaloupe Peel Wastes: Kinetic and Isotherm Study |
| title_full | Adsorptive Removal of Methylene Blue in Aqueous Solutions Through Raw and Modified Cantaloupe Peel Wastes: Kinetic and Isotherm Study |
| title_fullStr | Adsorptive Removal of Methylene Blue in Aqueous Solutions Through Raw and Modified Cantaloupe Peel Wastes: Kinetic and Isotherm Study |
| title_full_unstemmed | Adsorptive Removal of Methylene Blue in Aqueous Solutions Through Raw and Modified Cantaloupe Peel Wastes: Kinetic and Isotherm Study |
| title_short | Adsorptive Removal of Methylene Blue in Aqueous Solutions Through Raw and Modified Cantaloupe Peel Wastes: Kinetic and Isotherm Study |
| title_sort | adsorptive removal of methylene blue in aqueous solutions through raw and modified cantaloupe peel wastes kinetic and isotherm study |
| topic | effluent methylene blue removal cantaloupe peel waste kinetic isotherm |
| url | https://ajehe.umsha.ac.ir/PDF/ajehe-7-35.pdf |
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