José Armando Hidalgo Crespo

• Doctor of Environmental Science
• Assistant Professor - Maître des Conférences at Arts et Métiers Institute of Technology

This study examines the domestic solid waste management system in the LATAM region, using the city of Guayaquil in Ecuador as a case study. Through the life cycle assessment (LCA) methodology, the study compares domestic and external recycling processes, evaluating their effects on global warming potential, fossil resource scarcity, and terrestrial...

This study tackles the growing global concern about municipal waste management, particularly in cities like the Grand Guayaquil Metropolitan Area (GGA). Through realistic field studies on in situ household waste generation and geographic information system (GIS) tools, this work offers a framework to predict the quantities and types of recyclable h...

Plastic materials used by the general population mostly derive from synthetic petrochemical polymers. In Guayaquil, the most generated type of plastic waste is Polyethylene Terephthalate with 15.13 g/day/capita, representing 37% of the total domestic plastic waste, which also represents close to 9.5% of the total domestic waste generation. In addit...

Understanding how to promote more sustainable behaviors (not only including recycling but also going beyond) across various contexts remains a key crucial challenge for policymakers and researchers. The norm activation model (NAM) provides valuable frameworks for determining the different psycho-social factors that influence different kinds of pro-...

The objective of this study was to characterize the solid wastes generated in 13 different restaurants in the city of Guayaquil, located in the province of Guayas, Ecuador, evaluating the potential of using the generated waste to produce energy through incineration in a power plant. Data was collected for a period of 7-days for five categories of r...

Large amounts of edible oils are discarded each day from various sources, principally from households. When disposed wrongly into the nature, they can reach the ground, reducing the absorption of nutrients from plants, the aquifers, making them unusable, and finally, water surfaces, affecting the aquatic systems. From a circular economy perspective...

Nowadays, many countries suffer economic, social, and environmental problems due to the lack of proper final disposal systems for different types of residues, like municipal solid waste (MSW), agricultural waste (AG), and waste cooking oil (WCO). In this context, the controlled degradation of wastes through anaerobic digestion (AD) in the absence o...

Millions of tons of polluted personal protective equipment, such as face masks, face shields, and gloves related to the COVID-19 disease, are becoming dangerous infectious waste. Suppose PPE is littered in the open environment, whether aquatic or terrestrial. It will most likely produce the blockage of sewages in towns and cities and could also per...

Systems for managing municipal solid waste are typically ineffective in developing nations because of governments' deficient financial and administrative frameworks, poor rules, and a lack of suitable infrastructure and human resources. The informal sector plays an essential role in these systems by reprocessing waste into secondary raw materials,...

The present study investigated citizens’ self-reported pro-environmental behaviors by adopting a survey and bootstrapping via structural equation modeling for five different personality traits. Adopting one traditional psycho-social theory, this study investigates how motivations, values, intentions, norms, and behaviors are connected by using diff...

Noise pollution is becoming a critical health risk for city life. In 2020, the COVID-19 pandemic forced many cities to implement several mobility restrictions. These restrictions changed human activity patterns and decreased the noise levels and noise pollution that often affect urban settings. As the number of infections decreased, so did the outd...

The purpose of this study was to explore, through the semi-structured survey technique, the perception of LPG gas consumption for domestic use in the canton of Guayaquil–Ecuador, with high rates of non-renewable energy consumption. Through a bibliographic study and relying on urban sustainability and the data obtained from the ministries of energy...

This research resumes the work carried out at the ACCIONA Micro Energy Foundation (FUNDAME) as part of the final internship and Master’s thesis for the 2014 European Joint Master’s in Management and Engineering of Environment and Energy Program (ME3). The internship took place in the Corporate Social Responsibility department of ACCIONA S.A. The in...

The objective of this work is to validate a questionnaire using the a priori market segmentation technique for the development of a biodigester prototype based on green technology. The structure of the instrument will allow us to obtain information on the design characteristics of the biodigester according to the variables that are associated with...

Objetivo Proponer una herramienta para identificar sectores de población que requieren mayor atención por parte de autoridades locales o gubernamentales en situaciones de crisis biológica, considerando los factores que influyen en la adherencia a las normas de minimización de riesgos. Metodología Se implementó un algoritmo de ordenamiento, tomando...

The objective of the present study was to quantify, geo-locate, model, and characterize domestic used cooking oil (dUCO) generation for the city of Guayaquil. For this reason, and as a prerequisite for the proper planning of municipal cooking oil waste management in the city, we carried out 14-day fieldwork involving 532 households from different p...

Plastic industry is ubiquitous worldwide, and the generation of “plastic waste” has been steadily increasing to the point of being considered a high impact pollutant. The expanded polystyrene (EPS) plastic industry aware of the issue is interested on trying recycling post-consumer material. Through a recent study made in an alliance between the pri...

The analysis of the prime political ideologies that affect human behaviours and how these make people interact with their habitat is most necessary for policy making. The objective of the present research is to analyse the relationship between an individual’s political ideology and his/her environmental concern and pro-environmental behaviours and...

El objetivo del estudio fue demostrar que el nivel de producción de biogás está determinado por la valorización ener-gética del sustrato orgánico (restos de comida), el cual es viable para alimentar un dispositivo basado en fermentación metánica que sustituya a los actuales cilindros de gas doméstico de 15 kg. La aportación científica del artículo...

A significant contributor to the waste stream is the domestic single-use plastic used in households, being the final disposal in most cases the local landfill. There is a significant opportunity to promote resource recovery and efficiency through the introduction of circular economy strategies. However, the knowledge and management of post-consumer...

Plastic pollution of the natural environment is ubiquitous, and around 40% of all plastic waste produced globally is used in single-use products and only 9% is recycled. From this plastic waste, expandable polystyrene single-use products pose a major problem because of its great volume and low density. To abord this issue, the authors proposed a ci...

En este trabajo se replicó un método basado en el teorema de Vergnaud sobre la conceptualización del campo eléctrico con cálculo integral realizado en una universidad privada de la ciudad de Guayaquil. El objetivo de este estudio es relacionar y conectar la interacción que existe entre el dominio conceptual – epistemológico (Saber comprender) con e...

Resumen Este estudio se basa en una investigación mixta con enfoque bibliográfico-documental y experimental para identificar las principales habilidades profesionales con el modelo STEM según la industria 4.0, que deben desarrollar los estudiantes del curso de Física aplicada en la carrera de ingeniería industrial. Para determinar las habilidades S...

The electricity consumption per capita in Ecuador almost doubled between 1999 and 2017. Although electricity, gas and fuels are subsidized by the state, and thus generate savings for users, this often leads to inefficient use or bad energy consumption habits in the population. The current economic situation in the country has urged reconsidering th...

Transition towards a more sustainable society is a complex task. The depletion of natural resources and waste generation cannot be sustained indefinitely, i.e. as waste increases, local landfills keep growing and land availability reduces. The introduction of circular economy in effective household solid waste management practices should be conside...

A sorting algorithm based on Theory of Decision in Uncertainty is implemented to rank urban-marginal areas in Guayaquil City according to 11 indicators that significantly impact energy consumption. Links between elements are set assigning roles: the object susceptible to the affectation and the object to be affected, organized in an arrangement lea...

Despite all efforts to reduce household electricity consumption in the country, the demand remains in constant increase. There has been very little investigation carried out on the integration of household consumption trends and explanatory variables influencing them. The study was conducted applying descriptive correlation and explanatory factors...

El modelo educativo (Science, Technology, Engineering and Mathematics) propone entre sus actividades el desarrollo de ciertas habilidades que deben adquirir los estudiantes desde niveles iniciales. Este artículo consiste en describir como este constructo pedagogico puede determinar, a través de proyectos colaborativos interdisciplinarios, habilidad...

The purpose of this study was to apply a development technique of "motivational support of learning skills" to improve the professional competence of the students of the industrial engineering career. The professional competence is a capacity that allows to put into practice all the knowledge, skills and values in the central labor field, which can...

Resumen El modelo educativo STEM (Science, Technology, Engineering and Mathematics) propone entre sus actividades el desarrollo de ciertas habilidades que deben adquirir los estudiantes desde niveles iniciales. Este artículo consiste en describir cómo éste nuevo constructo pedagógico puede promover algunas estrategias de aprendizaje en los estudian...