Evaluation of NH4+ Adsorption Capacity in Water of Coffee Husk-Derived Biochar at Different Pyrolysis Temperatures
Ammonium NH4+ is a pollutant that can be harmful to the water environment. The purpose of this study is to access NH4+ removal capacity from water by coffee husk-derived biochar. The properties of biochar prepared at different temperatures (300, 450, and 600°C) were determined including TOC, and pH,...
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| Format: | Article |
| Language: | English |
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Wiley
2021-01-01
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| Series: | International Journal of Agronomy |
| Online Access: | http://dx.doi.org/10.1155/2021/1463814 |
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| author | Nguyen Van Phuong Nguyen Khanh Hoang Le Van Luan L. V. Tan |
| author_facet | Nguyen Van Phuong Nguyen Khanh Hoang Le Van Luan L. V. Tan |
| author_sort | Nguyen Van Phuong |
| collection | DOAJ |
| description | Ammonium NH4+ is a pollutant that can be harmful to the water environment. The purpose of this study is to access NH4+ removal capacity from water by coffee husk-derived biochar. The properties of biochar prepared at different temperatures (300, 450, and 600°C) were determined including TOC, and pH, pHpzc, functional groups of H+/OH−, cation-exchange capacity (CEC), and the characteristics of groups of organic matter (FT-IR spectrum) were identified and evaluated. The trend of NH4+ adsorption equilibrium and kinetics of biochar have been studied. The experimental design of adsorption equilibrium was carried out by exposing biochar to a NH4+ solution at different concentrations, ranging from 0 to 50 mg NH4+/L for 12 hours. Kinetic surveys were carried out when biochar was exposed to a solution containing 8.3 mg NH4+/L for a varying length of time. The results showed that Langmuir and Freundlich models and the pseudo-second-order kinetic model are suitable to explain the NH4+ adsorption equilibrium and kinetics on the biochar forms derived from coffee husk. Biochar derived from coffee husk prepared at lower pyrolysis temperature has a higher adsorption capacity. The results suggest that the biochar could be used as an adsorbent ammonium from water. |
| format | Article |
| id | doaj-art-0e3d12c12cfe4d9b8c925662f1e082f6 |
| institution | Kabale University |
| issn | 1687-8159 1687-8167 |
| language | English |
| publishDate | 2021-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | International Journal of Agronomy |
| spelling | doaj-art-0e3d12c12cfe4d9b8c925662f1e082f62025-02-03T07:23:28ZengWileyInternational Journal of Agronomy1687-81591687-81672021-01-01202110.1155/2021/14638141463814Evaluation of NH4+ Adsorption Capacity in Water of Coffee Husk-Derived Biochar at Different Pyrolysis TemperaturesNguyen Van Phuong0Nguyen Khanh Hoang1Le Van Luan2L. V. Tan3Institute of Environmental Science, Engineering and Management, Industrial University of Ho Chi Minh City, Ho Chi Minh City 700000, VietnamInstitute of Environmental Science, Engineering and Management, Industrial University of Ho Chi Minh City, Ho Chi Minh City 700000, VietnamHue Industrial College, Hue City 49100, VietnamChemical Engineering Faculty, Industrial University of Ho Chi Minh City, Ho Chi Minh City 700000, VietnamAmmonium NH4+ is a pollutant that can be harmful to the water environment. The purpose of this study is to access NH4+ removal capacity from water by coffee husk-derived biochar. The properties of biochar prepared at different temperatures (300, 450, and 600°C) were determined including TOC, and pH, pHpzc, functional groups of H+/OH−, cation-exchange capacity (CEC), and the characteristics of groups of organic matter (FT-IR spectrum) were identified and evaluated. The trend of NH4+ adsorption equilibrium and kinetics of biochar have been studied. The experimental design of adsorption equilibrium was carried out by exposing biochar to a NH4+ solution at different concentrations, ranging from 0 to 50 mg NH4+/L for 12 hours. Kinetic surveys were carried out when biochar was exposed to a solution containing 8.3 mg NH4+/L for a varying length of time. The results showed that Langmuir and Freundlich models and the pseudo-second-order kinetic model are suitable to explain the NH4+ adsorption equilibrium and kinetics on the biochar forms derived from coffee husk. Biochar derived from coffee husk prepared at lower pyrolysis temperature has a higher adsorption capacity. The results suggest that the biochar could be used as an adsorbent ammonium from water.http://dx.doi.org/10.1155/2021/1463814 |
| spellingShingle | Nguyen Van Phuong Nguyen Khanh Hoang Le Van Luan L. V. Tan Evaluation of NH4+ Adsorption Capacity in Water of Coffee Husk-Derived Biochar at Different Pyrolysis Temperatures International Journal of Agronomy |
| title | Evaluation of NH4+ Adsorption Capacity in Water of Coffee Husk-Derived Biochar at Different Pyrolysis Temperatures |
| title_full | Evaluation of NH4+ Adsorption Capacity in Water of Coffee Husk-Derived Biochar at Different Pyrolysis Temperatures |
| title_fullStr | Evaluation of NH4+ Adsorption Capacity in Water of Coffee Husk-Derived Biochar at Different Pyrolysis Temperatures |
| title_full_unstemmed | Evaluation of NH4+ Adsorption Capacity in Water of Coffee Husk-Derived Biochar at Different Pyrolysis Temperatures |
| title_short | Evaluation of NH4+ Adsorption Capacity in Water of Coffee Husk-Derived Biochar at Different Pyrolysis Temperatures |
| title_sort | evaluation of nh4 adsorption capacity in water of coffee husk derived biochar at different pyrolysis temperatures |
| url | http://dx.doi.org/10.1155/2021/1463814 |
| work_keys_str_mv | AT nguyenvanphuong evaluationofnh4adsorptioncapacityinwaterofcoffeehuskderivedbiocharatdifferentpyrolysistemperatures AT nguyenkhanhhoang evaluationofnh4adsorptioncapacityinwaterofcoffeehuskderivedbiocharatdifferentpyrolysistemperatures AT levanluan evaluationofnh4adsorptioncapacityinwaterofcoffeehuskderivedbiocharatdifferentpyrolysistemperatures AT lvtan evaluationofnh4adsorptioncapacityinwaterofcoffeehuskderivedbiocharatdifferentpyrolysistemperatures |