BIODEGRADATION OF THE COMMERCIAL MIXTURE OF THE HERBICIDES ATRAZINE AND AMETRYN, USING CULTURES WITH SUSPENDED AND IMMOBILIZED CELLS
The excessive use of herbicides has caused weeds resistance to these compounds; thus, it has been implemented the use of mixtures of herbicides to ensure its effect on weeds. One of the commercial mixtures used in Mexico is that of atrazine and ametryn. Information on processes for ametryn degradati...
| Autores: | , , , , , , |
|---|---|
| Tipo de recurso: | artículo |
| Estado: | Versión publicada |
| Fecha de publicación: | 2019 |
| País: | México |
| Institución: | UNIVERSIDAD NACIONAL AUTÓNOMA DE MÉXICO |
| Repositorio: | Revista Internacional de Contaminación Ambiental |
| Idioma: | español |
| OAI Identifier: | oai:ojs.pkp.sfu.ca:article/53091 |
| Acceso en línea: | https://www.revistascca.unam.mx/rica/index.php/rica/article/view/RICA.2019.35.03.05 |
| Access Level: | acceso abierto |
| Palabra clave: | quimiostato biobarrera comunidad microbiana biopelícula chemostat biobarrier microbial community biofilm |
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BIODEGRADATION OF THE COMMERCIAL MIXTURE OF THE HERBICIDES ATRAZINE AND AMETRYN, USING CULTURES WITH SUSPENDED AND IMMOBILIZED CELLS DEGRADACIÓN DE LA MEZCLA COMERCIAL DE LOS HERBICIDAS ATRAZINA Y AMETRINA, UTILIZANDO CULTIVOS CON CÉLULAS EN SUSPENSIÓN E INMOVILIZADAS |
| title |
BIODEGRADATION OF THE COMMERCIAL MIXTURE OF THE HERBICIDES ATRAZINE AND AMETRYN, USING CULTURES WITH SUSPENDED AND IMMOBILIZED CELLS |
| spellingShingle |
BIODEGRADATION OF THE COMMERCIAL MIXTURE OF THE HERBICIDES ATRAZINE AND AMETRYN, USING CULTURES WITH SUSPENDED AND IMMOBILIZED CELLS Castillo-Martínez, Karla Lizzette quimiostato biobarrera comunidad microbiana biopelícula chemostat biobarrier microbial community biofilm |
| title_short |
BIODEGRADATION OF THE COMMERCIAL MIXTURE OF THE HERBICIDES ATRAZINE AND AMETRYN, USING CULTURES WITH SUSPENDED AND IMMOBILIZED CELLS |
| title_full |
BIODEGRADATION OF THE COMMERCIAL MIXTURE OF THE HERBICIDES ATRAZINE AND AMETRYN, USING CULTURES WITH SUSPENDED AND IMMOBILIZED CELLS |
| title_fullStr |
BIODEGRADATION OF THE COMMERCIAL MIXTURE OF THE HERBICIDES ATRAZINE AND AMETRYN, USING CULTURES WITH SUSPENDED AND IMMOBILIZED CELLS |
| title_full_unstemmed |
BIODEGRADATION OF THE COMMERCIAL MIXTURE OF THE HERBICIDES ATRAZINE AND AMETRYN, USING CULTURES WITH SUSPENDED AND IMMOBILIZED CELLS |
| title_sort |
BIODEGRADATION OF THE COMMERCIAL MIXTURE OF THE HERBICIDES ATRAZINE AND AMETRYN, USING CULTURES WITH SUSPENDED AND IMMOBILIZED CELLS |
| dc.creator.none.fl_str_mv |
Castillo-Martínez, Karla Lizzette Ahuatzi-Chacón, Deifilia Ruiz-Ordaz, Nora Sandoval-Carrasco, Carlos Alberto Juárez-Ramírez, Cleotilde Galíndez-Mayer, Juvencio Salmerón-Alcocer, Angélica María |
| author |
Castillo-Martínez, Karla Lizzette |
| author_facet |
Castillo-Martínez, Karla Lizzette Ahuatzi-Chacón, Deifilia Ruiz-Ordaz, Nora Sandoval-Carrasco, Carlos Alberto Juárez-Ramírez, Cleotilde Galíndez-Mayer, Juvencio Salmerón-Alcocer, Angélica María |
| author_role |
author |
| author2 |
Ahuatzi-Chacón, Deifilia Ruiz-Ordaz, Nora Sandoval-Carrasco, Carlos Alberto Juárez-Ramírez, Cleotilde Galíndez-Mayer, Juvencio Salmerón-Alcocer, Angélica María |
| author2_role |
author author author author author author |
| dc.subject.none.fl_str_mv |
quimiostato biobarrera comunidad microbiana biopelícula chemostat biobarrier microbial community biofilm |
| topic |
quimiostato biobarrera comunidad microbiana biopelícula chemostat biobarrier microbial community biofilm |
| description |
The excessive use of herbicides has caused weeds resistance to these compounds; thus, it has been implemented the use of mixtures of herbicides to ensure its effect on weeds. One of the commercial mixtures used in Mexico is that of atrazine and ametryn. Information on processes for ametryn degradation is scarce, and virtually no references to the biodegradation of the commercial mixture of atrazine and ametryn exist. In this study, the biodegradation of this commercial mixture using a microbial community in different types of cultures, and using a chemostat and biobarrier is presented. To assess the degradation capability of the microbial community, planktonic cells were used in a semi-continuous batch system. From this system, the continuous process was started. In repeated batch cultures, complete removal of both herbicides was obtained. In the continuous system, at all tested volumetric loads, the removal efficiencies of ametryn and atrazine were of 100 and 97 % respectively. During continuous operation, biofilm formation on the reactor walls was observed; thus, it was decided to install a biobarrier using volcanic rock fragments (tezontle) as biofilm support. In this system, the removal efficiencies (ŋ) and the volumetric removal rates (Rv) of the herbicide mixture were 100 % and 287 mg/L/d, respectively. At all the loading rates tested, cyanuric acid accumulation was observed; however, when the biobarrier was operated at low volumetric loading rates, considerable metabolic degradation of this intermediate was achieved. |
| publishDate |
2019 |
| dc.date.none.fl_str_mv |
2019-07-31 |
| dc.type.none.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion ART |
| format |
article |
| status_str |
publishedVersion |
| dc.identifier.none.fl_str_mv |
https://www.revistascca.unam.mx/rica/index.php/rica/article/view/RICA.2019.35.03.05 10.20937/RICA.2019.35.03.05 |
| url |
https://www.revistascca.unam.mx/rica/index.php/rica/article/view/RICA.2019.35.03.05 |
| identifier_str_mv |
10.20937/RICA.2019.35.03.05 |
| dc.language.none.fl_str_mv |
spa |
| language |
spa |
| dc.relation.none.fl_str_mv |
https://www.revistascca.unam.mx/rica/index.php/rica/article/view/RICA.2019.35.03.05/46871 |
| dc.rights.none.fl_str_mv |
Derechos de autor 2019 Revista Internacional de Contaminación Ambiental info:eu-repo/semantics/openAccess |
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Derechos de autor 2019 Revista Internacional de Contaminación Ambiental |
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openAccess |
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application/pdf |
| dc.publisher.none.fl_str_mv |
Instituto de Ciencias de la Atmósfera, Universidad Nacional Autónoma de México |
| publisher.none.fl_str_mv |
Instituto de Ciencias de la Atmósfera, Universidad Nacional Autónoma de México |
| dc.source.none.fl_str_mv |
Revista Internacional de Contaminación Ambiental; Vol. 35 Núm. 3 (2019); 575-588 Revista Internacional de Contaminación Ambiental; Vol. 35 No. 3 (2019); 575-588 0188-4999 reponame:Revista Internacional de Contaminación Ambiental instname:UNIVERSIDAD NACIONAL AUTÓNOMA DE MÉXICO instacron:UNAM |
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UNIVERSIDAD NACIONAL AUTÓNOMA DE MÉXICO |
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UNAM |
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UNAM |
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Revista Internacional de Contaminación Ambiental |
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Revista Internacional de Contaminación Ambiental |
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1858176010960240640 |
| spelling |
BIODEGRADATION OF THE COMMERCIAL MIXTURE OF THE HERBICIDES ATRAZINE AND AMETRYN, USING CULTURES WITH SUSPENDED AND IMMOBILIZED CELLSDEGRADACIÓN DE LA MEZCLA COMERCIAL DE LOS HERBICIDAS ATRAZINA Y AMETRINA, UTILIZANDO CULTIVOS CON CÉLULAS EN SUSPENSIÓN E INMOVILIZADASCastillo-Martínez, Karla LizzetteAhuatzi-Chacón, DeifiliaRuiz-Ordaz, NoraSandoval-Carrasco, Carlos AlbertoJuárez-Ramírez, CleotildeGalíndez-Mayer, JuvencioSalmerón-Alcocer, Angélica Maríaquimiostatobiobarreracomunidad microbianabiopelículachemostatbiobarriermicrobial communitybiofilmThe excessive use of herbicides has caused weeds resistance to these compounds; thus, it has been implemented the use of mixtures of herbicides to ensure its effect on weeds. One of the commercial mixtures used in Mexico is that of atrazine and ametryn. Information on processes for ametryn degradation is scarce, and virtually no references to the biodegradation of the commercial mixture of atrazine and ametryn exist. In this study, the biodegradation of this commercial mixture using a microbial community in different types of cultures, and using a chemostat and biobarrier is presented. To assess the degradation capability of the microbial community, planktonic cells were used in a semi-continuous batch system. From this system, the continuous process was started. In repeated batch cultures, complete removal of both herbicides was obtained. In the continuous system, at all tested volumetric loads, the removal efficiencies of ametryn and atrazine were of 100 and 97 % respectively. During continuous operation, biofilm formation on the reactor walls was observed; thus, it was decided to install a biobarrier using volcanic rock fragments (tezontle) as biofilm support. In this system, the removal efficiencies (ŋ) and the volumetric removal rates (Rv) of the herbicide mixture were 100 % and 287 mg/L/d, respectively. At all the loading rates tested, cyanuric acid accumulation was observed; however, when the biobarrier was operated at low volumetric loading rates, considerable metabolic degradation of this intermediate was achieved.El empleo desmedido de los herbicidas ha ocasionado que las malezas generen resistencia a estos agroquímicos, por lo que se ha implementado el uso de mezclas para garantizar su efecto sobre diversos pastos indeseables. Una de las formulaciones comerciales utilizada en México es la mezcla de atrazina con ametrina. La información sobre procesos de degradación de la ametrina es escasa y prácticamente no hay referencias sobre la biodegradación de la mezcla comercial de la atrazina con ametrina. En este trabajo se presenta la biodegradación de esta mezcla comercial utilizando una comunidad microbiana en diferentes tipos de cultivo, empleando un quimiostato y una biobarrera. Para evaluar la capacidad de degradación de la comunidad microbiana se utilizaron células planctónicas en un sistema por lote semicontinuo, donde se obtuvo la remoción completa de ambos herbicidas. A partir de este sistema se inició un proceso continuo en el que, con todas las cargas volumétricas probadas, se removió el 100 % de ametrina y más del 97 % de atrazina. Durante la operación del proceso continuo se observó la formación de biopelícula en las paredes del reactor, por lo que se decidió utilizar una biobarrera con fragmentos de roca volcánica (tezontle) como soporte. En este sistema se obtuvieron eficiencias (ŋ) y velocidades volumétricas de remoción (RV) de los herbicidas, del 100 % y 287 mg/L/d, respectivamente. En todos los cultivos evaluados se observó la acumulación de ácido cianúrico; sin embargo, a bajas cargas volumétricas se alcanzó una degradación considerable de este intermediario metabólico. Instituto de Ciencias de la Atmósfera, Universidad Nacional Autónoma de México2019-07-31info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionARTapplication/pdfhttps://www.revistascca.unam.mx/rica/index.php/rica/article/view/RICA.2019.35.03.0510.20937/RICA.2019.35.03.05Revista Internacional de Contaminación Ambiental; Vol. 35 Núm. 3 (2019); 575-588Revista Internacional de Contaminación Ambiental; Vol. 35 No. 3 (2019); 575-5880188-4999reponame:Revista Internacional de Contaminación Ambientalinstname:UNIVERSIDAD NACIONAL AUTÓNOMA DE MÉXICOinstacron:UNAMspahttps://www.revistascca.unam.mx/rica/index.php/rica/article/view/RICA.2019.35.03.05/46871Derechos de autor 2019 Revista Internacional de Contaminación Ambientalinfo:eu-repo/semantics/openAccessoai:ojs.pkp.sfu.ca:article/530912024-08-16T19:00:38Z |
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15,812429 |