Conference Agenda

A systematic review will examine multiple sources and methods in analyzing and evaluating renewable energy technologies used in marginalized rural communities. The research focuses on identifying technologies such as solar, wind, hydro, and biomass, highlighting their potential to meet local energy needs. The findings demonstrated that these solutions are effective in providing reliable access to sustainable energy, reducing dependence on fossil fuels and improving quality of life. However, the need to consider cultural, social and economic aspects for successful implementation was emphasized, stressing the importance of community training and long-term technical and financial support. The importance of the sustainability of these technologies and the need to adapt them to specific contexts is demonstrated. Finally, it concludes that by providing access to clean energy, fostering local economic growth, and contributing to environmental conservation, renewable energy technologies have the potential to generate a significant positive impact if properly implemented.

In a world facing an unprecedented environmental crisis, construction and demolition waste (CDW) management is positioned as a critical challenge and an opportunity to transform the construction sector. This article conducts a study of the recycling and resource recovery processes from construction and demolition waste (CDW), with the aim of identifying the most effective and sustainable techniques. From the analysis of 132 articles published between 2020 and 2024, 20 studies that met the inclusion criteria were selected, using a methodology based on preferred elements for systematic review reporting. The results highlight the role of advanced technologies such as optical and magnetic separation and 3D printing to optimize the quality of recycled materials, as well as their positive impact on environmental sustainability. Critical challenges were identified such as the absence of homogeneous regulations and the limited adoption of these technologies in the industry. The study concludes that the implementation of sustainable practices and the promotion of the circular economy in the construction sector require a joint effort between regulators, companies and communities. It also emphasizes the importance of robust policies and continuous research to overcome barriers and maximize environmental and economic benefits.

There is a growing interest in the development of highly efficient and sustainable treatments for the removal of pollutants that are difficult to remove by traditional methods. In this sense, the objective was to explore and critically analyze emerging technologies in industrial wastewater treatment, seeking to provide a comprehensive overview of the most recent advances in this field, assessing their efficiency, sustainability, and feasibility of various innovative methodologies, as well as to identify the strengths and limitations of each technology. To this end, a systematic literature review was carried out using the PICOC method and a screening of scientific articles by means of PRISMA, obtaining a sample of 95 publications. The results showed that the efficiency of the emerging technologies is above 90% for most organic, inorganic, and microbiological pollutants, with the adsorption method standing out. Despite the advantages offered by these technologies, there are still challenges, such as high costs and validation at industrial scale. It is concluded that the current industrial wastewater treatment landscape is characterized by a wide range of emerging technologies that seek to address the specific challenges associated with the diversity of pollutants; these innovations focus on advanced adsorption methods, photocatalysis, advanced oxidation, bioremediation, nanofiltration, among others, each under unique approaches, to achieve more effective and sustainable industrial wastewater management.

This systematic review evaluates the relationship between smart buildings and their environmental impact through an analysis of 30 scientific articles, using the PICO and PRISMA methodologies. The most important objective is to identify how smart buildings help to reduce environmental impact by improving energy efficiency, reducing CO2 emissions, optimizing the consumption of HVAC systems and implementing advanced technologies. The energy efficiency criterion stands out as the most important with 53.33% emphasis, showing that these buildings are a feasible solution to promote sustainability and minimize the consumption of energy resources. This work highlights the potential of smart buildings as a crucial tool to reduce climate change and promote sustainable urban practices.
Keywords: Smart buildings, environmental impact, energy efficiency, technologies, sustainability

The discharge of untreated wastewater generates environmental pollution and poses health risks; therefore, wastewater must undergo treatment to reduce organic matter contamination. A quantitative methodology with an experimental design was applied. Twenty effluent flows were taken, with 2 liters of water sampled from each flow. Initial physicochemical conditions were determined, yielding the following results: 371.2 mg/L of oils and greases, 2046 mg/L of BOD, 3988 mg O2/L of COD, 1.57 mg/L of DO, 5.51 pH, 5725 mg/L of TSS, and 360 NTU of turbidity. Subsequently, a filtration system was designed, using 40 liters of domestic wastewater, achieving organic matter removal with an average efficiency of 99.1%, 99.3%, 99%, 81.8%, 21%, 90.1%, and 96.4%, respectively. It is concluded that the activated carbon filtration system influences the removal of organic matter.

This study addresses the problem of inadequate management of agricultural waste in the Cusco Convention, Peru, focusing on coffee and cocoa waste. The production of ecological charcoal is proposed as a sustainable alternative to conventional charcoal to reduce and add value to these wastes. The research is based on an experimental approach that details the carbonization process of the waste, considering variables such as waste type, temperature and carbonization time. Samples of coffee and cocoa waste were selected with humidity levels of 14.596% and 14.786%, respectively. Five different combinations were made to determine the optimal dosage: 50% coffee - 50% cocoa, 75% coffee - 25% cocoa, 25% coffee - 75% cocoa, 60% coffee - 40% cocoa, and 40% coffee - 60% cocoa. Each combination was carbonized under controlled conditions of temperature, time and according to the established combinations. The calorific value for each combination was determined, finding that sample 3 (25% coffee - 75% cocoa) showed the highest result, with 25.6 MJ/kg, while sample 2 (75% coffee - 25% cocoa) exhibited the lowest calorific value, with 24.6 MJ/kg. The results indicate that the optimal combination to maximize the calorific value was sample 3 (25% coffee - 75% cocoa). This finding suggests that the relative content of coffee and cocoa significantly influences the properties of the generated organic charcoal.

One of the main factors affecting the productivity of plant cultivation is water scarcity. Likewise, “hierba buena” (Mentha spicata) is considered a plant with beneficial characteristics for health due to its antidiabetic, anti-inflammatory, antioxidant, and digestion-improving properties. In the present work we examined the use of hydrogel in the cultivation of Mentha spicata, evaluating its effect on growth in the cauline and root systems. A control sample “A” without the application of the hydrogel, a sample “B” in the presence of hydrogel with soil, and a sample “C” containing hydrogel and a guano substrate were analyzed. Greater growth was observed in the cauline system in sample “B” with a size of 21.400 ± 0.337 cm and 4.300 ± 0.0816 cm in stem and leaves, respectively; growth in this system could be associated with the thermoregulatory role of the hydrogel in the presence of soil which favored the growth of this zone. These results are favorable since the main sources of its nutrients and the plant zone that is most used are found in the caulinar system.