DEVELOPMENT OF A METHOD TO EVALUATE THE EFFICIENCY OF NANOSCALE ZERO-VALENT IRON (NZVI) TO DEGRADE POLLUTANTS
Iron nanoparticles (nZVI) stand out in environmental remediation due to their high reactivity. However, they have low chemical stability when exposed to oxygen and water, reducing their effectiveness. The objective of this work was to develop and validate a method to evaluate the efficiency of nZVI...
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| Format: | Article |
| Language: | English |
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Universidade Federal de Viçosa (UFV)
2019-06-01
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| Series: | The Journal of Engineering and Exact Sciences |
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| Online Access: | https://periodicos.ufv.br/jcec/article/view/8447 |
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| author | Giovana Arrighi Ferrari Felipe Santana de Oliveira Cruz Renata Pereira Lopes Moreira Gustavo Alves Puiatti Luiza Dumont de Miranda Moraes André Fernando Oliveira |
| author_facet | Giovana Arrighi Ferrari Felipe Santana de Oliveira Cruz Renata Pereira Lopes Moreira Gustavo Alves Puiatti Luiza Dumont de Miranda Moraes André Fernando Oliveira |
| author_sort | Giovana Arrighi Ferrari |
| collection | DOAJ |
| description | Iron nanoparticles (nZVI) stand out in environmental remediation due to their high reactivity. However, they have low chemical stability when exposed to oxygen and water, reducing their effectiveness. The objective of this work was to develop and validate a method to evaluate the efficiency of nZVI from synthetic lots L01 and L02, from the degradation of dyes, orange and methyl violet (MO and MV). The previous degradation tests provided the best results for MO (~100% degradation, 12 min reaction, 0.5 g L-1 dose). The optimization using Factorial Planning obtained the optimal condition, CMO = 5.98 mol L-1 and DnZVI = 0.56 g L-1. The Boltzmann model fitted the results obtained (R2 = 0.993). Finally, a mathematical relationship was obtained that provided equivalent doses of L01 and L02 in relation to the Standard. The applied mathematical adjustments presented R²> 0.99 and errors <4%. |
| format | Article |
| id | doaj-art-fe1d2f48b8ab459489b80e5c6c6e5a15 |
| institution | Kabale University |
| issn | 2527-1075 |
| language | English |
| publishDate | 2019-06-01 |
| publisher | Universidade Federal de Viçosa (UFV) |
| record_format | Article |
| series | The Journal of Engineering and Exact Sciences |
| spelling | doaj-art-fe1d2f48b8ab459489b80e5c6c6e5a152025-02-02T19:58:45ZengUniversidade Federal de Viçosa (UFV)The Journal of Engineering and Exact Sciences2527-10752019-06-015310.18540/jcecvl5iss3pp0299-0307fDEVELOPMENT OF A METHOD TO EVALUATE THE EFFICIENCY OF NANOSCALE ZERO-VALENT IRON (NZVI) TO DEGRADE POLLUTANTSGiovana Arrighi Ferrari0Felipe Santana de Oliveira Cruz1Renata Pereira Lopes Moreira2Gustavo Alves Puiatti3Luiza Dumont de Miranda Moraes4André Fernando Oliveira5Universidade Federal de ViçosaUniversidade Federal de ViçosaUniversidade Federal de ViçosaUniversidade Federal de ViçosaUniversidade Federal de ViçosaUniversidade Federal de ViçosaIron nanoparticles (nZVI) stand out in environmental remediation due to their high reactivity. However, they have low chemical stability when exposed to oxygen and water, reducing their effectiveness. The objective of this work was to develop and validate a method to evaluate the efficiency of nZVI from synthetic lots L01 and L02, from the degradation of dyes, orange and methyl violet (MO and MV). The previous degradation tests provided the best results for MO (~100% degradation, 12 min reaction, 0.5 g L-1 dose). The optimization using Factorial Planning obtained the optimal condition, CMO = 5.98 mol L-1 and DnZVI = 0.56 g L-1. The Boltzmann model fitted the results obtained (R2 = 0.993). Finally, a mathematical relationship was obtained that provided equivalent doses of L01 and L02 in relation to the Standard. The applied mathematical adjustments presented R²> 0.99 and errors <4%.https://periodicos.ufv.br/jcec/article/view/8447Zero-valent ironOptimizationRemoval efficiencyMethod validation. |
| spellingShingle | Giovana Arrighi Ferrari Felipe Santana de Oliveira Cruz Renata Pereira Lopes Moreira Gustavo Alves Puiatti Luiza Dumont de Miranda Moraes André Fernando Oliveira DEVELOPMENT OF A METHOD TO EVALUATE THE EFFICIENCY OF NANOSCALE ZERO-VALENT IRON (NZVI) TO DEGRADE POLLUTANTS The Journal of Engineering and Exact Sciences Zero-valent iron Optimization Removal efficiency Method validation. |
| title | DEVELOPMENT OF A METHOD TO EVALUATE THE EFFICIENCY OF NANOSCALE ZERO-VALENT IRON (NZVI) TO DEGRADE POLLUTANTS |
| title_full | DEVELOPMENT OF A METHOD TO EVALUATE THE EFFICIENCY OF NANOSCALE ZERO-VALENT IRON (NZVI) TO DEGRADE POLLUTANTS |
| title_fullStr | DEVELOPMENT OF A METHOD TO EVALUATE THE EFFICIENCY OF NANOSCALE ZERO-VALENT IRON (NZVI) TO DEGRADE POLLUTANTS |
| title_full_unstemmed | DEVELOPMENT OF A METHOD TO EVALUATE THE EFFICIENCY OF NANOSCALE ZERO-VALENT IRON (NZVI) TO DEGRADE POLLUTANTS |
| title_short | DEVELOPMENT OF A METHOD TO EVALUATE THE EFFICIENCY OF NANOSCALE ZERO-VALENT IRON (NZVI) TO DEGRADE POLLUTANTS |
| title_sort | development of a method to evaluate the efficiency of nanoscale zero valent iron nzvi to degrade pollutants |
| topic | Zero-valent iron Optimization Removal efficiency Method validation. |
| url | https://periodicos.ufv.br/jcec/article/view/8447 |
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