Uso potencial de pellets para el tratamiento de aguas contaminadas con arsénico en comunidades de Xichú, Gto., México

Pellets potential use for the treatment of contaminated water with arsenic in communities Xichú, Gto. Mexico

ALMA HORTENSIA SERAFIN MUÑOZ MELINA GUADALUPE MEDINA GARCIA FRANCISCO AGUSTIN VIDO GARCIA BERENICE NORIEGA LUNA ADRIAN ZAMORATEGUI MOLINA (2017, [Artículo])

En el presente trabajo se llevó a cabo el desarrollo del uso de pellets, provenientes de resi-duos lignocelulósicos, para el tratamiento de aguas contaminadas con arsénico de las comu-nidades del municipio de Xichú, Gto., México. Las muestras de agua, n = 72, se evaluaron con base en la NOM-127-SSA1-1994. La concentración más alta de arsénico fue arriba de los límites permisibles, 0.2 mg.L–1 ± 0.04 mg.L–1. Los pellets utilizados fueron a partir de aserrín, paja de trigo, agave y sorgo. Se optimizó la rampa de temperatura para la mejor consistencia de los pellets. Se realizaron varios diseños experimentales con los pellets, n = 162, a diferentes condiciones, para desarrollar el proceso de activación y tratamiento con Fe (III). Los pellets obtenidos fueron colocados en muestras de agua contaminadas con ar-sénico por 24 h. Se logró una remoción de arsénico a pH entre 6.5 a 7, del 98.50% ± 1.2%.

Present work was carried out development of use of pellets from lignocellulosic waste for arsenic-contaminated waters treatment in communities of the municipality of Xichu, Guanajuato, Mexico. Water samples, n = 72, were evaluated based on NOM-127-SSA1-1994.

The highest concentration of arsenic was above permissible limits, 0.2 mg.L–1 ± 0.04 mg.L–1. Pellets used were from sawdust, wheat straw, agave and sorghum. Temperature ramp to the best consistency of pellets is optimized. Several experimental designs with pellets were

performed,n = 162, in different conditions to develop activation process and treatment with Fe (III). Pellets obtained were placed in water samples contaminated with arsenic 24 h. Arsenic removal at pH between 6.5 to 7, of 98.50% ± 1.2% was achieved.

BIOLOGÍA Y QUÍMICA Arsénico Pellets Lignocelulósica Tecnologías sustentables Xichú, Gto. México Arsenic Lignocellulosic wastes Sustainable technologies

Metodología Value Stream Mapping (VSM) aplicada a procesos de perforación de pozos petroleros en México

Value Stream Mapping (VSM) methodology applied to oil well drilling processes in Mexico

NEMIAS VASQUES MORALES CARLOS BELISARIO CASTAÑEDA CASTAÑEDA (2023, [Artículo])

Con los cambios recientes en el sector energético a nivel mundial, la industria petrolera enfrenta retos importantes en la extracción de hidrocarburos, por lo que se ha priorizado la implementación de operaciones que permitan esta actividad de forma eficiente y optimizada. En este trabajo se analizará la aplicación de una de las herramientas del Lean Manufacturing, el VSM (Value Stream Mapping) con la finalidad de identificar posibles mejoras y disminución de tiempos no productivos en los procesos de perforación de pozos petroleros, de acuerdo a las experiencias previas en campos desarrollados en México. Se pretende demostrar que herramientas de análisis de eficiencia para la manufactura pueden adaptarse a industrias pesadas como la petrolera y en particular del área de perforación.

With recent changes in the energy sector worldwide, the oil industry faces significant challenges in the extraction of hydrocarbons, which is why the implementation of operations that allow this activity in an efficient and optimized manner has been prioritized. In this work, the application of one of the Lean Manufacturing tools, VSM (Value Stream Mapping) will be analyzed with the purpose of identifying possible improvements and reduction of non-productive times in the oil well drilling processes, according to experiences. previous ones in developed fields in Mexico. The aim is to demonstrate that efficiency analysis tools for manufacturing can be adapted to heavy industries such as the oil industry and in particular the drilling area.

Lean Operaciones Tiempos no productivos Operations Non-productive times INGENIERÍA Y TECNOLOGÍA CIENCIAS TECNOLÓGICAS OTRAS ESPECIALIDADES TECNOLÓGICAS OTRAS OTRAS

Estudio de la calidad del agua de las subdivisiones del cuerpo de agua Laguna de Cuyutlán, Manzanillo, Colima

JUAN LEODEGARIO GARCIA ROJAS (2011, [Documento de trabajo])

El objetivo general del proyecto fue determinar la calidad del agua en los cuerpos de agua de la laguna de Cuyutlán, Las Garzas y San Pedrito. Los objetivos específicos, selección

Calidad del agua Lagunas Informes de proyectos Manzanillo, Colima INGENIERÍA Y TECNOLOGÍA

Multi-modal deep learning improves grain yield prediction in wheat breeding by fusing genomics and phenomics

Xu Wang Sandesh Kumar Shrestha Philomin Juliana Suchismita Mondal Francisco Pinto Govindan Velu Leonardo Abdiel Crespo Herrera JULIO HUERTA_ESPINO Ravi Singh Jesse Poland (2023, [Artículo])

New Crop Varieties Plant Breeding Programs Yield Prediction CIENCIAS AGROPECUARIAS Y BIOTECNOLOGÍA LEARNING GRAIN YIELDS WHEAT BREEDING FOOD SECURITY

Characterization of Mediterranean durum wheat for resistance to Pyrenophora tritici-repentis

marwa laribi Khaled Sassi Sarrah Ben M'barek (2022, [Artículo])

Tan Spot Durum Wheat Phenotypic Diversity CIENCIAS AGROPECUARIAS Y BIOTECNOLOGÍA SPOTS HARD WHEAT LANDRACES PHENOTYPIC VARIATION PLANT HEIGHT DISEASE RESISTANCE

Identification and characterization of resistance loci to wheat leaf rust and stripe rust in Afghan landrace “KU3067”

CAIXIA LAN Ravi Singh JULIO HUERTA_ESPINO Zaifeng Li Evans Lagudah sridhar bhavani (2022, [Artículo])

Genetic Analysis Molecular Mapping Wheat Rusts APR Genes CIENCIAS AGROPECUARIAS Y BIOTECNOLOGÍA ADULT PLANT RESISTANCE LANDRACES WHEAT RUSTS

An updated checklist of plant agrobiodiversity of northern Italy

Marco Canella Nicola Maria Giuseppe Ardenghi Graziano Rossi Filippo Guzzon (2022, [Artículo])

Ex Situ Conservation CIENCIAS AGROPECUARIAS Y BIOTECNOLOGÍA ETHNOBOTANY LANDRACES ON-FARM CONSERVATION PLANT GENETIC RESOURCES

User manual: How to use Agvisely to generate climate service advisories for livestock in Bangladesh

T.S Amjath-Babu Timothy Joseph Krupnik (2023, [Libro])

The Agvisely digital service for livestock integrates location-specific meteorological forecasts generated by the Bangladesh Meteorological Department (BMD) with species specific biological thresholds for weather variables (Temperature, rainfall, and temperature-humidity index (THI). When a biological threshold is to be breached in next five days' forecast, the system automatically generates location-specific management advice for livestock farmers. Advisories are based on a decision tree developed by the Bangladesh Livestock Research Institute (BLRI) and CIMMYT. Agvisely is a smart phone app and web-based service developed by the International Maize and Wheat Improvement Center (CIMMYT) CIMMYT with the support of USAID, securing the Food Systems of Asian Mega- Deltas (AMD) for Climate and Livelihood Resilience and the Transforming Agrifood Systems in South Asia (TAFSSA) initiatives in collaboration with Bangladesh Dept. of Agricultural Extension (DAE) and Bangladesh Meteorological Department (BMD).

CIENCIAS AGROPECUARIAS Y BIOTECNOLOGÍA CLIMATE SERVICES LIVESTOCK DIGITAL TECHNOLOGY

Discussion on sustainable water technologies for peri-urban areas of Mexico City: balancing urbanization and environmental conservation

EDUARDO LOPEZ RAMIREZ JOSE LUIS MARTINEZ RUIZ DANIEL MURILLO LICEA (2012, [Artículo])

This paper shows and demonstrates examples of different types of sustainable technologies that can be implemented in the peri-urban areas of Mexico City [rainwater harvesting, EcoSan and biofiltros (small constructed wetlands), and (vermi-)composting]. An innovative participatory planning method, combining scenario development with a participatory planning workshop with key stakeholders, was applied and resulted in three concept scenarios. Specific technologies were then selected for each concept scenario that the technical feasibility and applicability was assessed. Following this, the resulting resource flows (nutrients, water and energy) were determined and analyzed. The results show that decentralized technologies not only have the potential to deliver adequate water supply, sanitation and solid waste services in peri-urban areas and lessen environmental pollution, but also can recover significant amounts of resources thereby saving costs and providing valuable inputs in, for instance, the agricultural sector. Social acceptance of the technologies and institutional cooperation, however, is key for successful implementation.

Participación social Tecnología apropiada Abastecimiento de agua Saneamiento Zonas periurbanas Humedales Lombricultura CIENCIAS SOCIALES

Closing the yield gap of soybean (Glycine max (L.) Merril) in Southern Africa: a case of Malawi, Zambia, and Mozambique

Siyabusa Mkuhlani Isaiah Nyagumbo (2023, [Artículo])

Introduction: Smallholder farmers in Sub-Saharan Africa (SSA) are increasingly producing soybean for food, feed, cash, and soil fertility improvement. Yet, the difference between the smallholder farmers’ yield and either the attainable in research fields or the potential from crop models is wide. Reasons for the yield gap include low to nonapplication of appropriate fertilizers and inoculants, late planting, low plant populations, recycling seeds, etc. Methods: Here, we reviewed the literature on the yield gap and the technologies for narrowing it and modelled yields through the right sowing dates and suitable high-yielding varieties in APSIM. Results and Discussion: Results highlighted that between 2010 and 2020 in SSA, soybean production increased; however, it was through an expansion in the cropped area rather than a yield increase per hectare. Also, the actual smallholder farmers’ yield was 3.8, 2.2, and 2.3 times lower than the attainable yield in Malawi, Zambia, and Mozambique, respectively. Through inoculants, soybean yield increased by 23.8%. Coupling this with either 40 kg ha−1 of P or 60 kg ha−1 of K boosted the yields by 89.1% and 26.0%, respectively. Overall, application of 21–30 kg ha-1 of P to soybean in SSA could increase yields by about 48.2%. Furthermore, sowing at the right time increased soybean yield by 300%. Although these technologies enhance soybean yields, they are not fully embraced by smallholder farmers. Hence, refining and bundling them in a digital advisory tool will enhance the availability of the correct information to smallholder farmers at the right time and improve soybean yields per unit area.

Decision Support Tools Digital Tools Site-Specific Recommendations CIENCIAS AGROPECUARIAS Y BIOTECNOLOGÍA DECISION SUPPORT SYSTEMS LEGUMES YIELDS SOYBEANS