Plantain peel adsorbent: Simple preparation, and adsorption at phosphate concentrations similar to those of water sources at risk of eutrophication
There are several investigations on the use of food waste to remove contaminants by adsorption. However, a simple route, without chemical activation reagents, is needed for the development of adsorbents. The aim of this study was to develop an adsorbent from plantain peel, using a simple procedure,...
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| Format: | Article |
| Language: | English |
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Universidad Nacional de Trujillo
2023-05-01
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| Series: | Scientia Agropecuaria |
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| Online Access: | https://revistas.unitru.edu.pe/index.php/scientiaagrop/article/view/4935 |
| _version_ | 1797802436787699712 |
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| author | Eliana Contreras-López Eida Quispe-Mitma Ana María Muñoz Ricardo Yuli-Posadas Marcelo Portuguez-Maurtua Félix Hugo Milla Flores |
| author_facet | Eliana Contreras-López Eida Quispe-Mitma Ana María Muñoz Ricardo Yuli-Posadas Marcelo Portuguez-Maurtua Félix Hugo Milla Flores |
| author_sort | Eliana Contreras-López |
| collection | DOAJ |
| description |
There are several investigations on the use of food waste to remove contaminants by adsorption. However, a simple route, without chemical activation reagents, is needed for the development of adsorbents. The aim of this study was to develop an adsorbent from plantain peel, using a simple procedure, and to evaluate its capacity to remove phosphate from aqueous solutions at phosphate concentrations similar to those of water sources at risk of eutrophication (0.30 mg/L). The simple pyrolysis method was used in an electric muffle, without chemical activation, using plantain peel as precursor. The variables evaluated were pyrolysis temperature and solution pH. The specific surface area BET, zero loading point of the developed treatments, was determined. Phosphate adsorption was studied in a batch experiment in the presence of calcium ions in solution. Phosphate adsorption was favorable at all three pyrolysis temperature levels (500, 600 and 700 °C) and two solution pH levels (pH 7 and 10). the pseudo-second order kinetic model was the best fit for the experimental data to describe the adsorption mechanism. The best fit to the experimental equilibrium data was obtained with the Langmuir isotherm model. It was found that a 1 g/L dose of the adsorbent was able to reduce 92% of phosphate in water, with a removal capacity 0.14 mg/g at pH 10 and pyrolysis temperature of 700 °C. This study lays the groundwork for future research on the use of this type of adsorbent in water treatment to facilitate access to clean water for rural populations.
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| first_indexed | 2024-03-13T05:06:28Z |
| format | Article |
| id | doaj.art-06e35c85876549c7a70827361e30e7f7 |
| institution | Directory Open Access Journal |
| issn | 2077-9917 2306-6741 |
| language | English |
| last_indexed | 2024-03-13T05:06:28Z |
| publishDate | 2023-05-01 |
| publisher | Universidad Nacional de Trujillo |
| record_format | Article |
| series | Scientia Agropecuaria |
| spelling | doaj.art-06e35c85876549c7a70827361e30e7f72023-06-16T12:39:47ZengUniversidad Nacional de TrujilloScientia Agropecuaria2077-99172306-67412023-05-0114210.17268/sci.agropecu.2023.017Plantain peel adsorbent: Simple preparation, and adsorption at phosphate concentrations similar to those of water sources at risk of eutrophicationEliana Contreras-López0Eida Quispe-Mitma1Ana María Muñoz2Ricardo Yuli-Posadas3Marcelo Portuguez-Maurtua4Félix Hugo Milla Flores5Research Group of the Revaluation of Natural Sources and Functional Foods (REVALF), Universidad Nacional Mayor de San Marcos, Jr Puno 1002, Lima.Research Group of the Revaluation of Natural Sources and Functional Foods (REVALF), Universidad Nacional Mayor de San Marcos, Jr Puno 1002, Lima.Institute of Food Science and Nutrition, Health Nutrition Research Unit, Functional Foods and Nutraceuticals. Universidad San Ignacio de Loyola, Pachacamac Campus, Section B, Plot 1, Fundo La Carolina, Pachacamac, Lima.Research Group of the Revaluation of Natural Sources and Functional Foods (REVALF), Universidad Nacional Mayor de San Marcos, Jr Puno 1002, Lima.Water Resources Department, College of Agricultural Engineering, Universidad Nacional Agraria La Molina, Av. La Molina s/n Lima.Research Group of the Revaluation of Natural Sources and Functional Foods (REVALF), Universidad Nacional Mayor de San Marcos, Jr Puno 1002, Lima. There are several investigations on the use of food waste to remove contaminants by adsorption. However, a simple route, without chemical activation reagents, is needed for the development of adsorbents. The aim of this study was to develop an adsorbent from plantain peel, using a simple procedure, and to evaluate its capacity to remove phosphate from aqueous solutions at phosphate concentrations similar to those of water sources at risk of eutrophication (0.30 mg/L). The simple pyrolysis method was used in an electric muffle, without chemical activation, using plantain peel as precursor. The variables evaluated were pyrolysis temperature and solution pH. The specific surface area BET, zero loading point of the developed treatments, was determined. Phosphate adsorption was studied in a batch experiment in the presence of calcium ions in solution. Phosphate adsorption was favorable at all three pyrolysis temperature levels (500, 600 and 700 °C) and two solution pH levels (pH 7 and 10). the pseudo-second order kinetic model was the best fit for the experimental data to describe the adsorption mechanism. The best fit to the experimental equilibrium data was obtained with the Langmuir isotherm model. It was found that a 1 g/L dose of the adsorbent was able to reduce 92% of phosphate in water, with a removal capacity 0.14 mg/g at pH 10 and pyrolysis temperature of 700 °C. This study lays the groundwork for future research on the use of this type of adsorbent in water treatment to facilitate access to clean water for rural populations. https://revistas.unitru.edu.pe/index.php/scientiaagrop/article/view/4935Batch adsorptionKineticsFood residuesIsothermsmodeling |
| spellingShingle | Eliana Contreras-López Eida Quispe-Mitma Ana María Muñoz Ricardo Yuli-Posadas Marcelo Portuguez-Maurtua Félix Hugo Milla Flores Plantain peel adsorbent: Simple preparation, and adsorption at phosphate concentrations similar to those of water sources at risk of eutrophication Scientia Agropecuaria Batch adsorption Kinetics Food residues Isotherms modeling |
| title | Plantain peel adsorbent: Simple preparation, and adsorption at phosphate concentrations similar to those of water sources at risk of eutrophication |
| title_full | Plantain peel adsorbent: Simple preparation, and adsorption at phosphate concentrations similar to those of water sources at risk of eutrophication |
| title_fullStr | Plantain peel adsorbent: Simple preparation, and adsorption at phosphate concentrations similar to those of water sources at risk of eutrophication |
| title_full_unstemmed | Plantain peel adsorbent: Simple preparation, and adsorption at phosphate concentrations similar to those of water sources at risk of eutrophication |
| title_short | Plantain peel adsorbent: Simple preparation, and adsorption at phosphate concentrations similar to those of water sources at risk of eutrophication |
| title_sort | plantain peel adsorbent simple preparation and adsorption at phosphate concentrations similar to those of water sources at risk of eutrophication |
| topic | Batch adsorption Kinetics Food residues Isotherms modeling |
| url | https://revistas.unitru.edu.pe/index.php/scientiaagrop/article/view/4935 |
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