ADSORPTION OF ATRAZINE BY BIOCHARS PRODUCED FROM BYPRODUCTS OF THE WOOD INDUSTRY
ABSTRACT Atrazine is a herbicide widely used in agriculture; however, because of its toxicity, alternatives are needed to remove this compound from the environment. In this study, we investigated the adsorption process and the atrazine-adsorbing ability of three biochars produced at different pyroly...
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| Format: | Article |
| Language: | English |
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Sociedade Brasileira de Engenharia Agrícola
2020-11-01
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| Series: | Engenharia Agrícola |
| Subjects: | |
| Online Access: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162020000600769&tlng=en |
| _version_ | 1818731700397539328 |
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| author | Marcelo Fruehwirth Mariana Sbizzaro Danielle M. Rosa Silvio C. Sampaio Ralpho R. dos Reis |
| author_facet | Marcelo Fruehwirth Mariana Sbizzaro Danielle M. Rosa Silvio C. Sampaio Ralpho R. dos Reis |
| author_sort | Marcelo Fruehwirth |
| collection | DOAJ |
| description | ABSTRACT Atrazine is a herbicide widely used in agriculture; however, because of its toxicity, alternatives are needed to remove this compound from the environment. In this study, we investigated the adsorption process and the atrazine-adsorbing ability of three biochars produced at different pyrolysis temperatures from byproducts of the wood industry. The biochars were characterized by Fourier-transform infrared spectroscopy (FTIR) and scanning electron microscopy (SEM), and their physical characteristics were evaluated by Brunauer-Emmett-Teller (BET) analysis. The biochar pyrolyzed at 350 °C (BM350) adsorbed 26.04% of the herbicide, showing the best performance among the three biochars tested, even though it had the lowest specific surface area (1.467 m2 g–1). It also had a greater quantity of organic functional groups, which may have influenced the adsorption. The kinetics of the adsorption process were best explained by the pseudo-first-order model and by the Freundlich isotherm model. However, the biochar is not suitable for the removal of the herbicide atrazine, having a lower adsorption capacity than those of others described in the literature. |
| first_indexed | 2024-12-17T23:21:51Z |
| format | Article |
| id | doaj.art-ee859f74f1cf462883988455f672448d |
| institution | Directory Open Access Journal |
| issn | 0100-6916 |
| language | English |
| last_indexed | 2024-12-17T23:21:51Z |
| publishDate | 2020-11-01 |
| publisher | Sociedade Brasileira de Engenharia Agrícola |
| record_format | Article |
| series | Engenharia Agrícola |
| spelling | doaj.art-ee859f74f1cf462883988455f672448d2022-12-21T21:28:53ZengSociedade Brasileira de Engenharia AgrícolaEngenharia Agrícola0100-69162020-11-0140676977610.1590/1809-4430-eng.agric.v40n6p769-776/2020ADSORPTION OF ATRAZINE BY BIOCHARS PRODUCED FROM BYPRODUCTS OF THE WOOD INDUSTRYMarcelo Fruehwirthhttps://orcid.org/0000-0002-8548-3798Mariana SbizzaroDanielle M. RosaSilvio C. SampaioRalpho R. dos ReisABSTRACT Atrazine is a herbicide widely used in agriculture; however, because of its toxicity, alternatives are needed to remove this compound from the environment. In this study, we investigated the adsorption process and the atrazine-adsorbing ability of three biochars produced at different pyrolysis temperatures from byproducts of the wood industry. The biochars were characterized by Fourier-transform infrared spectroscopy (FTIR) and scanning electron microscopy (SEM), and their physical characteristics were evaluated by Brunauer-Emmett-Teller (BET) analysis. The biochar pyrolyzed at 350 °C (BM350) adsorbed 26.04% of the herbicide, showing the best performance among the three biochars tested, even though it had the lowest specific surface area (1.467 m2 g–1). It also had a greater quantity of organic functional groups, which may have influenced the adsorption. The kinetics of the adsorption process were best explained by the pseudo-first-order model and by the Freundlich isotherm model. However, the biochar is not suitable for the removal of the herbicide atrazine, having a lower adsorption capacity than those of others described in the literature.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162020000600769&tlng=enwater contaminationisothermfunctional groupskinetics models |
| spellingShingle | Marcelo Fruehwirth Mariana Sbizzaro Danielle M. Rosa Silvio C. Sampaio Ralpho R. dos Reis ADSORPTION OF ATRAZINE BY BIOCHARS PRODUCED FROM BYPRODUCTS OF THE WOOD INDUSTRY Engenharia Agrícola water contamination isotherm functional groups kinetics models |
| title | ADSORPTION OF ATRAZINE BY BIOCHARS PRODUCED FROM BYPRODUCTS OF THE WOOD INDUSTRY |
| title_full | ADSORPTION OF ATRAZINE BY BIOCHARS PRODUCED FROM BYPRODUCTS OF THE WOOD INDUSTRY |
| title_fullStr | ADSORPTION OF ATRAZINE BY BIOCHARS PRODUCED FROM BYPRODUCTS OF THE WOOD INDUSTRY |
| title_full_unstemmed | ADSORPTION OF ATRAZINE BY BIOCHARS PRODUCED FROM BYPRODUCTS OF THE WOOD INDUSTRY |
| title_short | ADSORPTION OF ATRAZINE BY BIOCHARS PRODUCED FROM BYPRODUCTS OF THE WOOD INDUSTRY |
| title_sort | adsorption of atrazine by biochars produced from byproducts of the wood industry |
| topic | water contamination isotherm functional groups kinetics models |
| url | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162020000600769&tlng=en |
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