Effects of components of multiples emulsions system in the MTBE contaminants by microbial consortium

Effects of components of multiples emulsions system in the MTBE contaminants by microbial consortium

The use of water-in-oil-in-water (W1/O/W2) emulsions has been proposed in environmental studies for treating water systems polluted with contaminants in low concentrations, where other treating techniques are not effective. For example it has been proposed that a microbial consortium capable of degrading methyl tert-butil ether (MTBE) be entrapped in a W1/O/W2 emulsion for treating water contaminated with MTBE. However a proper selection of the materials (emulsifying agents, oil phase) making up the W1/O/W2 emulsion must be carried out in order to ensure that the microbial consortium does not consume these materials, interfering with the degradation of MTBE. The objective of this study was to determine the consumption of potential materials for making up the W1/O/W2 multiple emulsions, in the presence and absence of MTBE, by the microbial consortium. Potential materials proposed for making up the multiple emulsions W1/O/W2 are Span 80 as the primary lipophilic emulsifier, mesquite gum (Prosopis laevigata) and polyacrylic acid as the secondary hydrophilic emulsifiers, and light mineral oil as the intermediate oil phase. Each of these compounds was used by separate at a concentration of 0.2 % in microcosms with and without MTBE. Production of CO2 was quantified as a measure of the compounds consumption. In the absence of MTBE, results indicate that Span 80 was used as carbon source by the microbial consortium, showing significantly higher (P0.05) different when MTBE was present with Span 80 than when it was not, but was significantly higher (P

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Main Authors: Pimentel-González, D. J., Campos-Montiel, R. G., Cisneros-Ortiz, M. E., Monroy-Hermosillo, O. A., Vernon-Carter, E. J.
Format: Digital revista
Language:spa
Published: Instituto de Ingeniería, Universidad Nacional Autónoma de México 2009
Online Access:https://www.revistas.unam.mx/index.php/aidis/article/view/14436
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institution UNAM MX
collection OJS
country México
countrycode MX
component Revista
access En linea
databasecode rev-aidis-mx
tag revista
region America del Norte
libraryname Biblioteca de Instituto de Ingeniería de la UNAM de México
language spa
format Digital
author Pimentel-González, D. J.
Campos-Montiel, R. G.
Cisneros-Ortiz, M. E.
Monroy-Hermosillo, O. A.
Vernon-Carter, E. J.
spellingShingle Pimentel-González, D. J.
Campos-Montiel, R. G.
Cisneros-Ortiz, M. E.
Monroy-Hermosillo, O. A.
Vernon-Carter, E. J.
Effects of components of multiples emulsions system in the MTBE contaminants by microbial consortium
author_facet Pimentel-González, D. J.
Campos-Montiel, R. G.
Cisneros-Ortiz, M. E.
Monroy-Hermosillo, O. A.
Vernon-Carter, E. J.
author_sort Pimentel-González, D. J.
title Effects of components of multiples emulsions system in the MTBE contaminants by microbial consortium
title_short Effects of components of multiples emulsions system in the MTBE contaminants by microbial consortium
title_full Effects of components of multiples emulsions system in the MTBE contaminants by microbial consortium
title_fullStr Effects of components of multiples emulsions system in the MTBE contaminants by microbial consortium
title_full_unstemmed Effects of components of multiples emulsions system in the MTBE contaminants by microbial consortium
title_sort effects of components of multiples emulsions system in the mtbe contaminants by microbial consortium
description The use of water-in-oil-in-water (W1/O/W2) emulsions has been proposed in environmental studies for treating water systems polluted with contaminants in low concentrations, where other treating techniques are not effective. For example it has been proposed that a microbial consortium capable of degrading methyl tert-butil ether (MTBE) be entrapped in a W1/O/W2 emulsion for treating water contaminated with MTBE. However a proper selection of the materials (emulsifying agents, oil phase) making up the W1/O/W2 emulsion must be carried out in order to ensure that the microbial consortium does not consume these materials, interfering with the degradation of MTBE. The objective of this study was to determine the consumption of potential materials for making up the W1/O/W2 multiple emulsions, in the presence and absence of MTBE, by the microbial consortium. Potential materials proposed for making up the multiple emulsions W1/O/W2 are Span 80 as the primary lipophilic emulsifier, mesquite gum (Prosopis laevigata) and polyacrylic acid as the secondary hydrophilic emulsifiers, and light mineral oil as the intermediate oil phase. Each of these compounds was used by separate at a concentration of 0.2 % in microcosms with and without MTBE. Production of CO2 was quantified as a measure of the compounds consumption. In the absence of MTBE, results indicate that Span 80 was used as carbon source by the microbial consortium, showing significantly higher (P0.05) different when MTBE was present with Span 80 than when it was not, but was significantly higher (P
publisher Instituto de Ingeniería, Universidad Nacional Autónoma de México
publishDate 2009
url https://www.revistas.unam.mx/index.php/aidis/article/view/14436
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spelling rev-aidis-mx-article-144362022-12-07T23:34:32Z Effects of components of multiples emulsions system in the MTBE contaminants by microbial consortium Efecto de componentes del sistema de emulsiones múltiples en el consumo del contaminante MTBE por un consorcio microbiano Efecto de componentes del sistema de emulsiones múltiples en el consumo del contaminante MTBE por un consorcio microbiano Efecto de componentes del sistema de emulsiones múltiples en el consumo del contaminante MTBE por un consorcio microbiano Pimentel-González, D. J. Campos-Montiel, R. G. Cisneros-Ortiz, M. E. Monroy-Hermosillo, O. A. Vernon-Carter, E. J. MTBE microcosms multiple emulsion microbial consortium emulsion materials MTBE microcosmos emulsión múltiple consorcio microbiano The use of water-in-oil-in-water (W1/O/W2) emulsions has been proposed in environmental studies for treating water systems polluted with contaminants in low concentrations, where other treating techniques are not effective. For example it has been proposed that a microbial consortium capable of degrading methyl tert-butil ether (MTBE) be entrapped in a W1/O/W2 emulsion for treating water contaminated with MTBE. However a proper selection of the materials (emulsifying agents, oil phase) making up the W1/O/W2 emulsion must be carried out in order to ensure that the microbial consortium does not consume these materials, interfering with the degradation of MTBE. The objective of this study was to determine the consumption of potential materials for making up the W1/O/W2 multiple emulsions, in the presence and absence of MTBE, by the microbial consortium. Potential materials proposed for making up the multiple emulsions W1/O/W2 are Span 80 as the primary lipophilic emulsifier, mesquite gum (Prosopis laevigata) and polyacrylic acid as the secondary hydrophilic emulsifiers, and light mineral oil as the intermediate oil phase. Each of these compounds was used by separate at a concentration of 0.2 % in microcosms with and without MTBE. Production of CO2 was quantified as a measure of the compounds consumption. In the absence of MTBE, results indicate that Span 80 was used as carbon source by the microbial consortium, showing significantly higher (P0.05) different when MTBE was present with Span 80 than when it was not, but was significantly higher (P Las emulsiones múltiples agua-en aceite-en agua (W1/O/W2) en el área ambiental se han propuesto para tratar aguas. Actualmente se ha sugerido entrampar un consorcio microbiano degradador de MTBE en el sistema de emulsiones múltiples, para tratar agua contaminada con metil ter butil éter (MTBE), no obstante, es importante el uso de los materiales adecuados en la formulación de la emulsión debido a que pueden interferir en la degradación de MTBE. El objetivo de este estudio fue observar el consumo de los materiales que componen la emulsión múltiple W1/O/W2 en presencia y ausencia de MTBE por el consorcio microbiano. Los materiales que se han propuesto para estabilizar la emulsión múltiple W1/O/W2 son goma de mezquite (Prosopis laevigata), ácido poliacrílico, aceite mineral ligero y Span 80. Se utilizaron cada uno de los anteriores compuestos por separado en una concentración de 0.2% en microcosmos en ausencia y en presencia de MTBE, se cuantificó CO2 para advertir el consumo de los compuestos. Los resultados de la primer prueba en ausencia de MTBE mostraron que el Span 80 es utilizado como fuente de carbono por el consorcio microbiano, reflejándose en la alta producción de CO2; la goma de mezquite y aceite mineral, también son biodegradados por el consorcio microbiano, pero significativamente diferente (P Instituto de Ingeniería, Universidad Nacional Autónoma de México 2009-11-17 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://www.revistas.unam.mx/index.php/aidis/article/view/14436 Revista AIDIS de Ingeniería y Ciencias Ambientales. Investigación, desarrollo y práctica; Vol. 1, No. 3, 2007 Revista AIDIS de Ingeniería y Ciencias Ambientales. Investigación, desarrollo y práctica; Vol. 1, No. 3, 2007 Revista AIDIS de Ingeniería y Ciencias Ambientales. Investigación, desarrollo y práctica; Vol. 1, No. 3, 2007 0718-378X 10.22201/iingen.0718378xe.2007.1.3 spa https://www.revistas.unam.mx/index.php/aidis/article/view/14436/13771

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