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An evaluation of use of lean and sustainable manufacturing tools was made, correlating them with the productivity and quality indices in an industry of the electronic sector located in the city of Mexicali. In this evaluated company, it was observed that some improper manufacturing methods was used and for this reason, generated a large amount of waste from electronic devices and electronic boards. This caused the productivity and quality indices to decrease, originating the need for extra time and with it unnecessary costs that devalued the prices of manufactured products, due to the competitiveness in the electronic industry sector evaluated. With the application of tools of lean manufacturing and sustainable manufacturing, the productivity and quality levels were increased and both overtime and unnecessary costs were reduced, achieving competitive prices in the evaluated industry. The installation method of electronic components with polarity in electronic boards was evaluated, due to the fact that a great diversity of products emerged from the automatic insertion area with defects, indicating reversed polarity, which should be solved, otherwise, short circuits could be generated or lack of electrical conductivity, in the manufactured products in their final process. This caused the manufactured products to not work properly, causing the presence of defective products and with it low levels of productivity and quality and economic losses. and It was detected that this occurred due to the lack of training of the operative personnel and the neglect of the operative workers of the automatic insertion area. In order to control this situation, as a methodological part, schematic models were developed to support the operational personnel in their activities in the automatic insertion area. This proposal with the schematic models developed for use in the electronics industry, where the research was made. The study was developed from 2018 to 2019.
Ana Laura Sánchez Corona; Samantha Eugenia Cruz Sotelo; Sara Ojeda Benítez; Gustavo López Badilla. Importance of the Application of Lean Manufacturing and Sustainable Manufacturing and Its Impact on Productivity and Quality in the Electronics Industry of Mexicali. International Journal of Innovative Technology and Exploring Engineering 2021, 10, 30 -39.
AMA StyleAna Laura Sánchez Corona, Samantha Eugenia Cruz Sotelo, Sara Ojeda Benítez, Gustavo López Badilla. Importance of the Application of Lean Manufacturing and Sustainable Manufacturing and Its Impact on Productivity and Quality in the Electronics Industry of Mexicali. International Journal of Innovative Technology and Exploring Engineering. 2021; 10 (5):30-39.
Chicago/Turabian StyleAna Laura Sánchez Corona; Samantha Eugenia Cruz Sotelo; Sara Ojeda Benítez; Gustavo López Badilla. 2021. "Importance of the Application of Lean Manufacturing and Sustainable Manufacturing and Its Impact on Productivity and Quality in the Electronics Industry of Mexicali." International Journal of Innovative Technology and Exploring Engineering 10, no. 5: 30-39.
In recent years, the interest in sustainable supply chain management has increased significantly in both business and academic areas. This is reflected in the growing number of articles, conferences, special publications and websites devoted to the subject. Nonetheless, sustainable development in emerging economies just started gaining importance. The objective of this article is to review, from a global perspective, the existing literature regarding sustainable supply chain management (SSCM) in emerging economies. For this purpose, a systematic literature review was performed, analyzing 56 articles from the year 2010 to April 2020 from a descriptive and content approach. Subsequently, the results are presented, showing the increasing interest in SSCM, however lagging behind in emerging economies’ research versus developed ones. Findings indicate the context in developing countries plays an important role when conducting empirical or case study investigations. Additionally, the integration of the three dimensions of sustainability and how they impact supply chain performance becomes crucial to research from an emerging economy perspective. Consequently, limitations of this work are presented, and opportunities are identified for future lines of research, in particular in key supply chain functions. Finally, the conclusion confirms the need for further research from different supply chain viewpoints, such as collaboration, sustainable practices innovation, sourcing and supplier development from emerging countries’ standpoint and background.
Rebeca Sánchez-Flores; Samantha Cruz-Sotelo; Sara Ojeda-Benitez; Ma. Ramírez-Barreto. Sustainable Supply Chain Management—A Literature Review on Emerging Economies. Sustainability 2020, 12, 6972 .
AMA StyleRebeca Sánchez-Flores, Samantha Cruz-Sotelo, Sara Ojeda-Benitez, Ma. Ramírez-Barreto. Sustainable Supply Chain Management—A Literature Review on Emerging Economies. Sustainability. 2020; 12 (17):6972.
Chicago/Turabian StyleRebeca Sánchez-Flores; Samantha Cruz-Sotelo; Sara Ojeda-Benitez; Ma. Ramírez-Barreto. 2020. "Sustainable Supply Chain Management—A Literature Review on Emerging Economies." Sustainability 12, no. 17: 6972.
In this work, the analysis of a hybrid LiBr/H2O absorption-cooling and flash-desalination system, using solar thermal energy as heat source, is presented. An absorption open-cycle with three pressure levels is used in combination with a single-stage flash-desalination process to use the coolant as product water, resulting in an increase in cooling and desalination efficiency. For the application, a 20-room coastal hotel complex in San Felipe, Baja California, Mexico, is taken as a case study and the sizing of the solar collection and storage system is carried out for the operation of the proposed hybrid system, during the summer operative period. The operational dynamics during the week with the highest ambient temperatures are presented. The dimensioning of the solar collector’s area and the energy storage resulted in a collection area of 620 m2 with 30 m3, respectively, reaching a solar fraction of 69%. The absorption-cooling subprocess showed an increase of 13.88% in the average coefficient of performance (COP) compared to conventional LiBr/H2O absorption systems. Also, considering that the system provides cooling and desalination simultaneously, the average COPG is 1.64, which is 2.27 times higher than the COP of conventional LiBr/H2O single-effect absorption units. During the critical week, the system presented a desalinated water production of 16.94 m3 with an average performance ratio (PR) of 0.83, while the average daily water production was 2406 kg/day; enough to satisfy the daily water requirements of four people in a coastal hotel in Mexico or to cover the basic services of 24 people according to the World Health Organization.
Nicolás Velázquez-Limón; Ricardo López-Zavala; Luis Hernández-Callejo; Jesús A. Aguilar-Jiménez; Sara Ojeda-Benítez; Juan Ríos-Arriola. Study of a Hybrid Solar Absorption-Cooling and Flash-Desalination System. Energies 2020, 13, 3943 .
AMA StyleNicolás Velázquez-Limón, Ricardo López-Zavala, Luis Hernández-Callejo, Jesús A. Aguilar-Jiménez, Sara Ojeda-Benítez, Juan Ríos-Arriola. Study of a Hybrid Solar Absorption-Cooling and Flash-Desalination System. Energies. 2020; 13 (15):3943.
Chicago/Turabian StyleNicolás Velázquez-Limón; Ricardo López-Zavala; Luis Hernández-Callejo; Jesús A. Aguilar-Jiménez; Sara Ojeda-Benítez; Juan Ríos-Arriola. 2020. "Study of a Hybrid Solar Absorption-Cooling and Flash-Desalination System." Energies 13, no. 15: 3943.
Juan Carlos Alvarez-Zeferino; Universidad Autónoma De Baja California Instituto De Ingeniería; Arely Areanely Cruz Salas; Alethia Vázquez-Morillas; Sara Ojeda-Benitez; Universidad Autónoma Metropolitana Área De Tecnologías Sustentables. METHOD FOR QUANTIFYING AND CHARACTERIZATION OF MICROPLASTICS IN SAND BEACHES. Revista Internacional de Contaminación Ambiental 2020, 36, 151 -164.
AMA StyleJuan Carlos Alvarez-Zeferino, Universidad Autónoma De Baja California Instituto De Ingeniería, Arely Areanely Cruz Salas, Alethia Vázquez-Morillas, Sara Ojeda-Benitez, Universidad Autónoma Metropolitana Área De Tecnologías Sustentables. METHOD FOR QUANTIFYING AND CHARACTERIZATION OF MICROPLASTICS IN SAND BEACHES. Revista Internacional de Contaminación Ambiental. 2020; 36 (1):151-164.
Chicago/Turabian StyleJuan Carlos Alvarez-Zeferino; Universidad Autónoma De Baja California Instituto De Ingeniería; Arely Areanely Cruz Salas; Alethia Vázquez-Morillas; Sara Ojeda-Benitez; Universidad Autónoma Metropolitana Área De Tecnologías Sustentables. 2020. "METHOD FOR QUANTIFYING AND CHARACTERIZATION OF MICROPLASTICS IN SAND BEACHES." Revista Internacional de Contaminación Ambiental 36, no. 1: 151-164.
Sara Ojeda-Benitez; Universidad Autónoma De Baja California Instituto De Ingeniería; Claudia E. Saldaña Durán; Universidad Autónoma De Nayarit. MANEJO DE RESIDUOS SÓLIDOS EN MÉXICO. Revista Internacional de Contaminación Ambiental 2019, 35, 7 -9.
AMA StyleSara Ojeda-Benitez, Universidad Autónoma De Baja California Instituto De Ingeniería, Claudia E. Saldaña Durán, Universidad Autónoma De Nayarit. MANEJO DE RESIDUOS SÓLIDOS EN MÉXICO. Revista Internacional de Contaminación Ambiental. 2019; 35 (esp02):7-9.
Chicago/Turabian StyleSara Ojeda-Benitez; Universidad Autónoma De Baja California Instituto De Ingeniería; Claudia E. Saldaña Durán; Universidad Autónoma De Nayarit. 2019. "MANEJO DE RESIDUOS SÓLIDOS EN MÉXICO." Revista Internacional de Contaminación Ambiental 35, no. esp02: 7-9.
This paper presents a hypothetical and comparative performance of a 5 ton air conditioner (AC) operating in two zones in different urban microclimates for 25 days. One site represents a type of homogeneous planned urbanism and the other is a traditional heterogeneous zone. Air temperature data was collected and then processed using a linear regression model included in the operating manual of the AC in order to obtain their energy consumption. Results indicate that for an area with 500 homes, a traditional urban complex requires 12,350 kWh of electrical energy more than a planned zone (1.89%). This extra energy amounts up to $1180 and adds 9191 kg of CO2 to the atmosphere. The increased energy consumption has implications that increase the cost and environmental aspects of two urban microclimates, so that urbanization without planning is less friendly to the environment. In this sense, this study highlights the effects of urban microclimates on domestic electricity consumption from air conditioning. In addition, for a city with an arid desert climate, the variation in electricity consumption is associated with changes in the urban mosaic. The results found represent scientific evidence that can be used as a reference to establish public policies that could be incorporated into the local construction regulations, oriented to reduce the energy consumption associated with the use of air conditioning equipment.
Néstor Santillán-Soto; O. Rafael García-Cueto; Alejandro A. Lambert-Arista; Sara Ojeda-Benítez; Samantha E. Cruz-Sotelo. Comparative Analysis of Two Urban Microclimates: Energy Consumption and Greenhouse Gas Emissions. Sustainability 2019, 11, 2045 .
AMA StyleNéstor Santillán-Soto, O. Rafael García-Cueto, Alejandro A. Lambert-Arista, Sara Ojeda-Benítez, Samantha E. Cruz-Sotelo. Comparative Analysis of Two Urban Microclimates: Energy Consumption and Greenhouse Gas Emissions. Sustainability. 2019; 11 (7):2045.
Chicago/Turabian StyleNéstor Santillán-Soto; O. Rafael García-Cueto; Alejandro A. Lambert-Arista; Sara Ojeda-Benítez; Samantha E. Cruz-Sotelo. 2019. "Comparative Analysis of Two Urban Microclimates: Energy Consumption and Greenhouse Gas Emissions." Sustainability 11, no. 7: 2045.
Global studies focusing on climate extremes in urban areas, specifically in Mexico, have not been approached with a sufficient level of detail, despite considerably increased risks for both infrastructure and human society. Based on 14 climate indices proposed by the Expert Team on Climate Change Detection and Indices (ETCCDI) and the application of the nonparametric Mann-Kendall and Sen’s slope tests, the observed trends of climate extremes in 16 urban areas in Mexico from 1980 to 2010 were analyzed. The results show that climate conditions over most cities of México are changing, as indicated by a warming trend during the study period. Significant increases were detected in the annual average maximum temperature (TMX) and the annual average minimum temperature (TMN). There is no clear trend that the warmest days (TXx) are increasing, but the annual number of warm days (TX90p) and summer days (SU) has increased, and the cold days (TX10p) have decreased. Associated with these changes are concomitant decreases in fewer coldest nights (TNn), an increase in the percentage of days with warm nights (TN90p) and tropical nights (TR), and a decrease in the number of frost days (FD). In contrast, the analysis reveals a statistically significant decrease in the mean temperature and the amount of warm days in Mexico City, which could be associated with the increasing trend of atmospheric pollution and the continuous smoke and ash emissions from the volcano Popocatepetl, which disperse incoming solar radiation and reduce radiative forcing. Climate change indices based on daily precipitation data show positive trends in many cities. In general, an increasing trend in very wet days (R95p), a number of very heavy rainfall days ≥ 25 mm (R25), and the annual total wet days (PRCP) were observed. These results highlight the vulnerability of cities confronted with both global and local climate change and the importance of promoting effective local risk reduction measures as part of urban planning for city dwellers.
O. Rafael García-Cueto; Néstor Santillán-Soto; Ernesto López-Velázquez; Jaime Reyes-López; Samantha Cruz-Sotelo; Sara Ojeda-Benítez. Trends of climate change indices in some Mexican cities from 1980 to 2010. Theoretical and Applied Climatology 2018, 137, 775 -790.
AMA StyleO. Rafael García-Cueto, Néstor Santillán-Soto, Ernesto López-Velázquez, Jaime Reyes-López, Samantha Cruz-Sotelo, Sara Ojeda-Benítez. Trends of climate change indices in some Mexican cities from 1980 to 2010. Theoretical and Applied Climatology. 2018; 137 (1-2):775-790.
Chicago/Turabian StyleO. Rafael García-Cueto; Néstor Santillán-Soto; Ernesto López-Velázquez; Jaime Reyes-López; Samantha Cruz-Sotelo; Sara Ojeda-Benítez. 2018. "Trends of climate change indices in some Mexican cities from 1980 to 2010." Theoretical and Applied Climatology 137, no. 1-2: 775-790.
The mobile phone market has experienced continuous growth over the last decade. Increasingly, mobile phones are replaced by new models with more modern designs or expansion of functions. This lifestyle is causing increasing amount of electronic waste that do not always receive treatment. This article presents the results of the application of the methodology for life-cycle assessment (LCA) to calculate quantitatively the environmental benefit due to the extension of lifespan mobile phones during different periods of time. Taking as a functional unit the life cycle of an average mobile phone during 30 months and considering the stages of raw materials/production, distribution, use and end of life, three scenarios were modeled. The SimaPro (2013) software was used, the Ecoinvent database has been applied to configure the life cycle inventory, and the emissions were allocated into six categories according to the impact CML2000 method. It was observed that to extend the mobile phone useful life and to provide treatment when it becomes a waste, represents an environmental gain not only because the provision and consumption of a new one is avoided, but because limited resources and energy required for extraction are saved through recovery of materials. However, before recycling it is important to consider reuse (extending lifespan) because a substantial amount of the mobile phones are discarded for fashion or cosmetic reasons while they are still functional. El mercado de telefonía móvil ha experimentado un continuo crecimiento en la última década. Cada vez más, los teléfonos móviles son reemplazados por nuevos modelos con diseños más modernos y ampliación de funciones. Este estilo de vida está provocando incremento en la cantidad de residuos de aparatos electrónicos que no siempre reciben tratamiento. Por lo que, en este artículo, se presentan los resultados de la aplicación de la metodología de análisis de ciclo de vida (ACV) para calcular cuantitativamente el beneficio ambiental debido a la extensión de vida útil del teléfono móvil durante diferentes períodos. Tomando como unidad funcional el ciclo de vida promedio de 30 meses, se modelaron tres escenarios considerando cuatro etapas: adquisición de materias primas/producción, distribución, uso y fin de vida útil. Se utilizó el paquete SimaPro (2013), la base de datos Ecoinvent para configurar el inventario y las emisiones consideradas se asignaron en seis categorías de impacto según el método CML2000 del Centro para Estudios Medioambientales (CML). Se observó que al prolongar la vida útil del teléfono móvil y dar tratamiento cuando se convierte en residuo representa una ganancia ambiental no sólo porque se evita su disposición y consumo de uno nuevo, sino porque se ahorran recursos limitados y la energía necesaria para su extracción a través de la recuperación de materiales. Sin embargo, antes de reciclar es importante considerar su reutilización (extensión de su vida útil) ya que una cantidad sustancial de los móviles son dispuestos por razones de moda o estética mientras aún son funcionales.
Samantha Eugenia Cruz Sotelo; Universidad Autónoma De Baja California Facultad De Ingeniería; María Dolores Bovea Edo; Sara Ojeda-Benitez; Néstor Santillán Soto; Onofre Rafael García Cueto; Universitat Jaume I Departamento De Ingeniería Mecánica Y Construcción. EVALUACIÓN DEL IMPACTO AMBIENTAL AL EXTENDER LA VIDA ÚTIL DEL TELÉFONO MÓVIL. Revista Internacional de Contaminación Ambiental 2017, 33, 701 -712.
AMA StyleSamantha Eugenia Cruz Sotelo, Universidad Autónoma De Baja California Facultad De Ingeniería, María Dolores Bovea Edo, Sara Ojeda-Benitez, Néstor Santillán Soto, Onofre Rafael García Cueto, Universitat Jaume I Departamento De Ingeniería Mecánica Y Construcción. EVALUACIÓN DEL IMPACTO AMBIENTAL AL EXTENDER LA VIDA ÚTIL DEL TELÉFONO MÓVIL. Revista Internacional de Contaminación Ambiental. 2017; 33 (4):701-712.
Chicago/Turabian StyleSamantha Eugenia Cruz Sotelo; Universidad Autónoma De Baja California Facultad De Ingeniería; María Dolores Bovea Edo; Sara Ojeda-Benitez; Néstor Santillán Soto; Onofre Rafael García Cueto; Universitat Jaume I Departamento De Ingeniería Mecánica Y Construcción. 2017. "EVALUACIÓN DEL IMPACTO AMBIENTAL AL EXTENDER LA VIDA ÚTIL DEL TELÉFONO MÓVIL." Revista Internacional de Contaminación Ambiental 33, no. 4: 701-712.
Electronic waste is a widespread environmental problem. From all waste streams, e-waste is registering one of the largest growing rates (between 3% and 5%). In Mexico, the e-waste recovery system comprises a mix of formal and informal sectors not well known to date. The goal of this article was to analyze electronic waste in Mexico through the active actors in the recovery chain. This article presents the evolution of studies on electronic waste in Mexico. The legal regulations and public policies were analyzed, as were the existing practices of electronic waste handling, and some challenges facing this country for waste flow management. A management model is proposed which highlights components that must be considered in the model and the opportunities and challenges to transition from an unbundled handling, which still has practices that lack environmental and technical support, to sustainable management.
Samantha E. Cruz-Sotelo; Sara Ojeda-Benítez; Jorge Jáuregui Sesma; Karla I. Velázquez-Victorica; Néstor Santillán-Soto; O. Rafael García-Cueto; Víctor Alcántara Concepción; Camilo Alcántara. E-Waste Supply Chain in Mexico: Challenges and Opportunities for Sustainable Management. Sustainability 2017, 9, 503 .
AMA StyleSamantha E. Cruz-Sotelo, Sara Ojeda-Benítez, Jorge Jáuregui Sesma, Karla I. Velázquez-Victorica, Néstor Santillán-Soto, O. Rafael García-Cueto, Víctor Alcántara Concepción, Camilo Alcántara. E-Waste Supply Chain in Mexico: Challenges and Opportunities for Sustainable Management. Sustainability. 2017; 9 (4):503.
Chicago/Turabian StyleSamantha E. Cruz-Sotelo; Sara Ojeda-Benítez; Jorge Jáuregui Sesma; Karla I. Velázquez-Victorica; Néstor Santillán-Soto; O. Rafael García-Cueto; Víctor Alcántara Concepción; Camilo Alcántara. 2017. "E-Waste Supply Chain in Mexico: Challenges and Opportunities for Sustainable Management." Sustainability 9, no. 4: 503.
The consumer plays a key role in resource conservation; therefore, it is important to know consumer behavior to identify consumer profiles and to promote pro-environmental practices in society that encourage resource conservation and reductions in waste generation. The purpose of this paper is to implement a fuzzy model to evaluate consumer behavior in relation to three pro-environmental practices that can be implemented at the household level, including reductions in resource consumption (reduce), reuse of resources (reuse), and recycling (recycle). To identify socio-demographic profiles that characterize an environmentally responsible consumer, 2831 surveys were applied on a representative sample of consumers residing in a Mexican city. Fuzzy logic and neural networks were applied using a Sugeno-type subtractive clustering to determine each profile. The model input variables were socioeconomic status, age, education level, monthly income, occupation and the type of organizations with which the consumer is affiliated. The output variables were represented by pro-environmental practices. Results show that the consumer practices are performed independently of each other, with the most frequent pro-environmental consumer practices being reduction and reuse.
Wendolyn Aguilar-Salinas; Sara Ojeda-Benitez; Samantha E. Cruz-Sotelo; Juan Ramón Castro-Rodríguez. Model to Evaluate Pro-Environmental Consumer Practices. Environments 2017, 4, 11 .
AMA StyleWendolyn Aguilar-Salinas, Sara Ojeda-Benitez, Samantha E. Cruz-Sotelo, Juan Ramón Castro-Rodríguez. Model to Evaluate Pro-Environmental Consumer Practices. Environments. 2017; 4 (1):11.
Chicago/Turabian StyleWendolyn Aguilar-Salinas; Sara Ojeda-Benitez; Samantha E. Cruz-Sotelo; Juan Ramón Castro-Rodríguez. 2017. "Model to Evaluate Pro-Environmental Consumer Practices." Environments 4, no. 1: 11.
El desarrollo de la humanidad ha implicado acceso a formas cada vez más variadas y vinculadas con sus prácticas sociales. En el siglo XXI la humanidad ha visto crecer sus necesidades de insumos con gran rapidez, estos satisfactores que demanda la sociedad del siglo XXI son provistos a través de procesos de industrialización y comercialización, lo que representa una notoria explotación de los recursos naturales y la generación de grandes volúmenes de desechos. Es así que el manejo de residuos sólidos es un tema de interés mundial, por ello en este volumen se presenta una visión del manejo de residuos sólidos en Iberoamérica, resultado del trabajo en red realizado por un grupo de investigadores de algunos países de esta región. Contiene 12 artículos, que analizan diversos temas del manejo de residuos, se incluye un artículo en el que se presenta un análisis y comparación de la composición de residuos sólidos domiciliarios (RSD) en ciudades de cinco países de Latinoamérica. Entre los hallazgos, los autores de éste articulo encontraron variaciones en la generación y composición de los RSD de las ciudades estudiadas, observaron que la composición es más heterogénea, así mismo reportan que los subproductos reciclables están presentes en el flujo de RSD, siendo la fracción orgánica la que continua predominando. También destacan la importancia de contar con datos precisos y actualizados de tasas de generación y composición, ya que estos datos son esenciales para el diseño de programas de gestión que incluyan el reciclaje y la disposición final adecuada. En el segundo artículo, se hace una revisión de la aplicación de la metodología de Análisis de Ciclo de Vida (ACV) como una herramienta para evaluar el desempeño ambiental de los sistemas de gestión de residuos sólidos. Analizan cinco experiencias de aplicación de la metodología en las que evalúan el comportamiento ambiental de un sistema de recogida selectiva de residuos domiciliarios en España; un sistema de gestión de residuos de aparatos eléctricos y electrónicos y específicamente terminales de telefonía móvil en México; un sistema de gestión de residuos de construcción y demolición en Argentina; la incorporación de recogida selectiva en un sistema de gestión de residuos domiciliarios en Brasil; y finalmente, un sistema de gestión de residuos domiciliarios en Colombia. Señalan la importancia de contar con inventarios en bases de datos comerciales adaptados a diferentes países, fracciones y tratamientos de gestión de residuos, para obtener mejores resultados. En el tercer artículo se presenta la evaluación de riesgos (ER) como una herramienta aplicada al manejo de residuos sólidos urbanos (RSU) y a la operación de sitios de disposición final (SDF), se establece que esta herramienta puede ayudar a estimar y jerarquizar los riesgos ocasionados por esos sitios. La información que se obtiene de ER proporciona elementos para la elaboración de medidas normativas de prevención de riesgos, así como en la toma de decisiones de control ambiental, a través del suministro de información científica. En el cuarto artículo, los autores realizan un análisis de los plásticos, una de las corrientes de residuos que está en continuo crecimiento y provoca efectos ambientales por la saturación de sitios de disposición final y afectaciones en los ecosistemas por su manejo inadecuado. Se analizan y comparan la generación de residuos plásticos no industriales, las medidas legislativas enfocadas en la minimización de sus impactos y el aumento de su valorización. También se ha incluido un artículo que analiza el desarrollo de la industria del biodiesel en Colombia y México, a partir de la utilización de residuos. Los autores comparan esta industria en ambos países y reportan que para producir biodiesel, en Colombia, se utiliza una tecnología que procesa palma la cual genera residuos que son aprovechados como fuente de energía en otros procesos, reportan que el desarrollo de la industria del biodiesel en este país se debe a la integración de los productores de palma quienes proveen las materias primas. El trabajo articulado de todos los actores, provee y asegura la plataforma y condiciones de mercado del biodiesel. El reto para Colombia es continuar con esta dinámica y explorar otras materias primas tales para producir biodiesel. En el caso de México, las tecnologías de las plantas fueron diseñadas para procesar residuos y semillas oleaginosas. Otro tema que se aborda en este número es el de rellenos sanitarios, en tres artículos, se presenta una revisión del estado actual del conocimiento sobre biorrellenos. Los autores reúnen las directrices generales de diseño y operación recomendables para nuevas instalaciones de biorrellenos anaeróbicos y semiaeróbicos, incluyendo los sistemas de recirculación de lixiviados y extracción del gas generado, los cambios principales respecto a la operación de un relleno tradicional y las necesidades de seguimiento. Analizan una experiencia a escala real, un modelo de biorrelleno semiaeróbico aplicable a países de desarrollo intermedio y dos casos representativos del avance en este campo en Iberoamérica. Otro tema que se aborda en...
Antonio Gallardo Izquierdo; Samantha E. Cruz-Sotelo; Sara Ojeda Benitez. EDITORIAL Una visión del manejo de residuos sólidos en Iberoamérica. Revista Internacional de Contaminación Ambiental 2016, 32, 7 -9.
AMA StyleAntonio Gallardo Izquierdo, Samantha E. Cruz-Sotelo, Sara Ojeda Benitez. EDITORIAL Una visión del manejo de residuos sólidos en Iberoamérica. Revista Internacional de Contaminación Ambiental. 2016; 32 (Residuos s):7-9.
Chicago/Turabian StyleAntonio Gallardo Izquierdo; Samantha E. Cruz-Sotelo; Sara Ojeda Benitez. 2016. "EDITORIAL Una visión del manejo de residuos sólidos en Iberoamérica." Revista Internacional de Contaminación Ambiental 32, no. Residuos s: 7-9.
Néstor Santillán Soto; Rafael García Cueto; Gabriela Peñuelas García; José Ernesto López Velázquez; Sara Ojeda Benítez; Nicolás Velázquez Limón; Samantha Cruz Sotelo. Análisis comparativo de emisiones de CO2 y su impacto económico en dos complejos habitacionales de Mexicali, México. Clima, sociedad, riesgos y ordenación del territorio 2016, 613 -622.
AMA StyleNéstor Santillán Soto, Rafael García Cueto, Gabriela Peñuelas García, José Ernesto López Velázquez, Sara Ojeda Benítez, Nicolás Velázquez Limón, Samantha Cruz Sotelo. Análisis comparativo de emisiones de CO2 y su impacto económico en dos complejos habitacionales de Mexicali, México. Clima, sociedad, riesgos y ordenación del territorio. 2016; ():613-622.
Chicago/Turabian StyleNéstor Santillán Soto; Rafael García Cueto; Gabriela Peñuelas García; José Ernesto López Velázquez; Sara Ojeda Benítez; Nicolás Velázquez Limón; Samantha Cruz Sotelo. 2016. "Análisis comparativo de emisiones de CO2 y su impacto económico en dos complejos habitacionales de Mexicali, México." Clima, sociedad, riesgos y ordenación del territorio , no. : 613-622.
Net radiation is an essential forcing of climate in the lower layers of Earth’s atmosphere. In this paper, radiation balance is measured in clay soil and green grass, and is compared with three urban materials. These materials: asphalt, concrete and white painted elastomeric polystyrene roofing sheet are widely used in Mexicali, Baja California, México. This study was carried out during August of 2011, the hottest time of the year. The 24-hour average values of net radiation found were: 137.2 W·m−2 for asphalt, 119.1 for concrete, 104.6 for clay soil, 152 for green grass and 29.2 for the polystyrene insulation. The latter two types of materials are likely to be the most effective in reducing urban heat island effects. This variation in the radiation balance has widespread implications for human living conditions, as land cover change tends to be towards surfaces that have higher levels of net radiation.
Néstor Santillán-Soto; Rafael García-Cueto; Zalia Haro-Rincón; Sara Ojeda-Benítez; Margarito Quintero-Núñez; Nicolás Velázquez-Limón. Radiation Balance of Urban Materials and Their Thermal Impact in Semi-Desert Region: Mexicali, México Study Case. Atmosphere 2015, 6, 1578 -1589.
AMA StyleNéstor Santillán-Soto, Rafael García-Cueto, Zalia Haro-Rincón, Sara Ojeda-Benítez, Margarito Quintero-Núñez, Nicolás Velázquez-Limón. Radiation Balance of Urban Materials and Their Thermal Impact in Semi-Desert Region: Mexicali, México Study Case. Atmosphere. 2015; 6 (10):1578-1589.
Chicago/Turabian StyleNéstor Santillán-Soto; Rafael García-Cueto; Zalia Haro-Rincón; Sara Ojeda-Benítez; Margarito Quintero-Núñez; Nicolás Velázquez-Limón. 2015. "Radiation Balance of Urban Materials and Their Thermal Impact in Semi-Desert Region: Mexicali, México Study Case." Atmosphere 6, no. 10: 1578-1589.
Waste with high biomass content generated in cities in developing countries is sent to landfills or open dumps. This research aims to degrade biomass content in urban waste through cultivation, at pilot scale, of the edible mushroom Pleurotus ostreatus. First, the number of diapers used by one baby per week was measured with a survey in day care facilities. Then, cellulose content of diapers was assessed. Finally, cultivation of P. ostreatus was carried out using as substrate a mixture of diapers with gardening waste, a co-substrate readily available at urban settings. The factors assessed were strain of P. ostreatus (grey BPR-81, white BPR-5), conditioning of the substrate (diapers with and without plastic) and co-substrate (wheat straw, grass, and withered leaves). Results show that diapers are a valuable source of biomass, as generation of diapers with urine is 15.3 kg/child/month and they contain 50.2% by weight of cellulose. The highest reductions in dry weight and volume (>64%) of substrates was achieved with the substrate diaper without plastic and co-substrate wheat straw. Although diapers with plastic and grass and leaves showed lower degradation, they achieved efficiencies that make them suitable as a co-substrate (>40%), considering that their biomass is currently confined in landfills.
Rosa María Espinosa-Valdemar; Alethia Vázquez-Morillas; Sara Ojeda-Benítez; Gabriela Arango-Escorcia; Sonia Cabrera-Elizalde; Xochitl Quecholac-Piña; Maribel Velasco-Pérez; Perla X. Sotelo-Navarro. Assessment of Gardening Wastes as a Co-Substrate for Diapers Degradation by the Fungus Pleurotus ostreatus. Sustainability 2015, 7, 6033 -6045.
AMA StyleRosa María Espinosa-Valdemar, Alethia Vázquez-Morillas, Sara Ojeda-Benítez, Gabriela Arango-Escorcia, Sonia Cabrera-Elizalde, Xochitl Quecholac-Piña, Maribel Velasco-Pérez, Perla X. Sotelo-Navarro. Assessment of Gardening Wastes as a Co-Substrate for Diapers Degradation by the Fungus Pleurotus ostreatus. Sustainability. 2015; 7 (5):6033-6045.
Chicago/Turabian StyleRosa María Espinosa-Valdemar; Alethia Vázquez-Morillas; Sara Ojeda-Benítez; Gabriela Arango-Escorcia; Sonia Cabrera-Elizalde; Xochitl Quecholac-Piña; Maribel Velasco-Pérez; Perla X. Sotelo-Navarro. 2015. "Assessment of Gardening Wastes as a Co-Substrate for Diapers Degradation by the Fungus Pleurotus ostreatus." Sustainability 7, no. 5: 6033-6045.
Quetzalli Aguilar-Virgen; Paul Taboada-González; Sara Ojeda-Benitez. Analysis of the feasibility of the recovery of landfill gas: a case study of Mexico. Journal of Cleaner Production 2014, 79, 53 -60.
AMA StyleQuetzalli Aguilar-Virgen, Paul Taboada-González, Sara Ojeda-Benitez. Analysis of the feasibility of the recovery of landfill gas: a case study of Mexico. Journal of Cleaner Production. 2014; 79 ():53-60.
Chicago/Turabian StyleQuetzalli Aguilar-Virgen; Paul Taboada-González; Sara Ojeda-Benitez. 2014. "Analysis of the feasibility of the recovery of landfill gas: a case study of Mexico." Journal of Cleaner Production 79, no. : 53-60.
Rosa M. Espinosa-Valdemar; Perla Xochitl Sotelo Navarro; Xochitl Quecholac-Piña; Mariel A. García Rivera; Margarita Beltrán-Villavicencio; Sara Ojeda-Benítez; Alethia Vázquez-Morillas. Biological recycling of used baby diapers in a small-scale composting system. Resources, Conservation and Recycling 2014, 87, 153 -157.
AMA StyleRosa M. Espinosa-Valdemar, Perla Xochitl Sotelo Navarro, Xochitl Quecholac-Piña, Mariel A. García Rivera, Margarita Beltrán-Villavicencio, Sara Ojeda-Benítez, Alethia Vázquez-Morillas. Biological recycling of used baby diapers in a small-scale composting system. Resources, Conservation and Recycling. 2014; 87 ():153-157.
Chicago/Turabian StyleRosa M. Espinosa-Valdemar; Perla Xochitl Sotelo Navarro; Xochitl Quecholac-Piña; Mariel A. García Rivera; Margarita Beltrán-Villavicencio; Sara Ojeda-Benítez; Alethia Vázquez-Morillas. 2014. "Biological recycling of used baby diapers in a small-scale composting system." Resources, Conservation and Recycling 87, no. : 153-157.
The high per capita generation of solid waste and the environmental problems in major rural communities of Ensenada, Baja California, have prompted authorities to seek alternatives for waste treatment. In the absence of a selection methodology, three technologies of waste treatment with energy recovery (an anaerobic digester, a downdraft gasifier, and a plasma gasifier) were evaluated, taking the broader social, political, economic, and environmental issues into considerations. Using the scientific literature as a baseline, interviews with experts, decision makers and the community, and waste stream studies were used to construct a hierarchy that was evaluated by the analytic hierarchy process. In terms of the criteria, judgments, and assumptions made in the model, the anaerobic digester was found to have the highest rating and should consequently be selected as the waste treatment technology for this area. The study results showed low sensitivity, so alternative scenarios were not considered. The methodology developed in this study may be useful for other governments who wish to assess technologies to select waste treatment.
Paul Taboada-González; Quetzalli Aguilar-Virgen; Sara Ojeda-Benitez; Samantha Cruz-Sotelo. Application of analytic hierarchy process in a waste treatment technology assessment in Mexico. Environmental Monitoring and Assessment 2014, 186, 5777 -5795.
AMA StylePaul Taboada-González, Quetzalli Aguilar-Virgen, Sara Ojeda-Benitez, Samantha Cruz-Sotelo. Application of analytic hierarchy process in a waste treatment technology assessment in Mexico. Environmental Monitoring and Assessment. 2014; 186 (9):5777-5795.
Chicago/Turabian StylePaul Taboada-González; Quetzalli Aguilar-Virgen; Sara Ojeda-Benitez; Samantha Cruz-Sotelo. 2014. "Application of analytic hierarchy process in a waste treatment technology assessment in Mexico." Environmental Monitoring and Assessment 186, no. 9: 5777-5795.
In Mexico there are three liquid natural gas (LNG) terminals supplied from places such as Palmira, Tamaulipas, Manzanillo, Colima and Costa Azul,...
M. Quintero-Núñez; C. Del C. Sanchez-Sanchez; R. García-Cueto; N. Santillán-Soto; Sara Ojeda-Benitez; Nicolas Velazquez-Limon. Environmental impact of the Energía Costa Azul LNG terminal at Ensenada, B.C., México. Environmental Impact II 2014, 1 .
AMA StyleM. Quintero-Núñez, C. Del C. Sanchez-Sanchez, R. García-Cueto, N. Santillán-Soto, Sara Ojeda-Benitez, Nicolas Velazquez-Limon. Environmental impact of the Energía Costa Azul LNG terminal at Ensenada, B.C., México. Environmental Impact II. 2014; ():1.
Chicago/Turabian StyleM. Quintero-Núñez; C. Del C. Sanchez-Sanchez; R. García-Cueto; N. Santillán-Soto; Sara Ojeda-Benitez; Nicolas Velazquez-Limon. 2014. "Environmental impact of the Energía Costa Azul LNG terminal at Ensenada, B.C., México." Environmental Impact II , no. : 1.
Néstor Santillán Soto; O. Rafael García Cueto; Sara Ojeda Benítez; Alejandro Adolfo Lambert Arista. Photovoltaic low power systems and their environmental impact:Yuma, Arizona, U.S.A. case study and projections for Mexicali, Mexico. Renewable and Sustainable Energy Reviews 2014, 32, 172 -177.
AMA StyleNéstor Santillán Soto, O. Rafael García Cueto, Sara Ojeda Benítez, Alejandro Adolfo Lambert Arista. Photovoltaic low power systems and their environmental impact:Yuma, Arizona, U.S.A. case study and projections for Mexicali, Mexico. Renewable and Sustainable Energy Reviews. 2014; 32 ():172-177.
Chicago/Turabian StyleNéstor Santillán Soto; O. Rafael García Cueto; Sara Ojeda Benítez; Alejandro Adolfo Lambert Arista. 2014. "Photovoltaic low power systems and their environmental impact:Yuma, Arizona, U.S.A. case study and projections for Mexicali, Mexico." Renewable and Sustainable Energy Reviews 32, no. : 172-177.
Quetzalli Aguilar-Virgen; Paul Taboada-González; Sara Ojeda-Benitez; Samantha Cruz-Sotelo. Power generation with biogas from municipal solid waste: Prediction of gas generation with in situ parameters. Renewable and Sustainable Energy Reviews 2014, 30, 412 -419.
AMA StyleQuetzalli Aguilar-Virgen, Paul Taboada-González, Sara Ojeda-Benitez, Samantha Cruz-Sotelo. Power generation with biogas from municipal solid waste: Prediction of gas generation with in situ parameters. Renewable and Sustainable Energy Reviews. 2014; 30 ():412-419.
Chicago/Turabian StyleQuetzalli Aguilar-Virgen; Paul Taboada-González; Sara Ojeda-Benitez; Samantha Cruz-Sotelo. 2014. "Power generation with biogas from municipal solid waste: Prediction of gas generation with in situ parameters." Renewable and Sustainable Energy Reviews 30, no. : 412-419.