Conference Agenda

Wastewater treatment plants (WWTPs) play a crucial role in protecting the environment and public health by ensuring that treated effluents meet regulatory standards. This study evaluates the efficiency of the Tamboril WWTP, designed under the extended aeration activated sludge system, in removing key contaminants: Biochemical Oxygen Demand (BOD₅), Chemical Oxygen Demand (COD), Suspended Solids (SS), Total Nitrogen (N), and Total Phosphorus (P). Based on historical data analysis (2010–2024), the average annual influent flow was found to be below the installed capacity of 85 L/s, indicating underutilization of the system. Actual influent values showed significant increases in organic load and nutrients, occasionally exceeding design parameters. Statistical analysis revealed a positive correlation between SS concentration in Tank 2 and the removal of BOD₅ (r = 0.43), N-NH₄ (r = 0.43), and phosphorus (P-PO₄, r = 0.56). These results suggest that operating with SS concentrations between 5,000 and 6,000 mg/L in Tank 2 optimizes phosphorus removal, achieving efficiencies close to 80%, without compromising the removal of other contaminants. The study highlights the need for operational adjustments in the WWTP to maximize efficiency, particularly in nutrient removal, contributing to the achievement of Sustainable Development Goals related to water quality. These findings are relevant for the optimization of plants with similar characteristics.

The relationship between personality and academic performance in at-risk engineering students from the National University of Engineering (UNI) in Peru, between 2022 and 2023, is presented. Using a survey applied to students where the MBTI indicator was used, finding An assessment between certain personality dimensions and performance, the dimensions "Intuition/Sensation" and "Thinking/Feeling" showed a statistically significant association with academic performance. Students with a preference for “Feeling” and “Thinking” showed a greater tendency toward poor performance. However, "Extroversion/Introversion" and "Judgment/Perception" did not show any significant correlation. The study concludes that, although personality influences performance, it does not determine it, and recommends personalized pedagogical interventions and socio-emotional support to improve the performance of these students.

It is important to consider that this study could be extended to other engineering specialties to improve the quality and generalization of the conclusions.

In recent years, research on additives for the protection of reinforcing steel has advanced significantly, highlighting the development of more efficient and sustainable technologies. Anticorrosive have emerged as key tools for mitigating corrosion, a phenomenon that compromises the durability and safety of reinforced concrete structures. Traditional approaches, based on chemical inhibitors such as nitrates and phosphates, have evolved toward more environmentally friendly solutions, such as green inhibitors derived from natural sources. Among these, the use of organic compounds as anticorrosive has garnered significant interest due to their Anticorrosive properties, biodegradability, and low environmental impact. These additives act by forming protective layers on the steel surface, blocking the electrochemical processes that drive corrosion. Furthermore, advances in nanotechnology have enabled the incorporation of nanoparticles into coatings and concrete mixes, enhancing their resistance to corrosive agents. Another significant advancement is the development of multifunctional additives that not only inhibit corrosion but also improve the mechanical properties and workability of concrete. The combination of advanced technologies and sustainable strategies is driving a shift toward more efficient, cost effective, and environmentally friendly protection systems. These developments represent a step forward in extending the service life of structures and reducing costs associated with maintenance and repairs. This article reviews recent advances, current limitations, and future opportunities in the use of anticorrosive additives for reinforcing steel.

This study evaluates the potential of organic additives to improve the resistance and performance of gravel soils in Costa Rica with the main objective to reduce the carbon footprint associated to road maintenance. The research focuses on two specifically organic additives: molasses and palm oil. Tests were carried out in the laboratory to evaluate the mechanical properties on the treated material. The research shows that the application of these additives improves the capacity of soil to resist weather conditions and the high traffic on the highway. The main findings reveals that the use of molasses and palm oil improves the stability, the bearing capacity and the volumetric changes due to environment conditions. The study also includes a cost analysis that confirms that road management and the use of these organic additives is a feasible alternative to traditional stabilization methods. The use of these organic products reduces the cost of conservation strategies but also improves the sustainability of traditional methods. The study suggests the implementation of full-scale test sections to generate more data to allow more information for future implementation. The proposed methods can serve as a sustainable alternative not only at the national level, but at the regional level where material conditions are similar.

The article examined the implementation of Lean Six Sigma (LSS) as a methodology for process improvement in the industrial sector, identifying critical aspects of its application, as well as the most commonly used methodologies and tools. A literature review was conducted based on scientific articles published between 2020 and 2024, sourced from SCOPUS and SCIELO, selecting 20 studies after applying inclusion and exclusion criteria. The results showed that the DMAIC approach (Define, Measure, Analyze, Improve, and Control) was the most widely used, complemented by tools such as the Ishikawa diagram and value stream mapping, demonstrating its effectiveness in optimizing productivity, reducing waste, and improving customer satisfaction in sectors such as manufacturing and healthcare. The research concluded that LSS is a robust and versatile methodology, adaptable to various industrial contexts, which fosters continuous improvement, increases operational efficiency, and strengthens organizational competitiveness. Its application not only optimizes internal processes but also contributes to management excellence, establishing itself as a fundamental strategy for achieving high standards of quality and performance. Additionally, the importance of staff training and management commitment to ensure successful implementation was highlighted. Despite its benefits, challenges were identified, such as resistance to change and the need for specialized resources, suggesting the importance of a structured and well-planned approach to overcome these barriers and maximize results.

The project presents an innovative and artisanal solution to mitigate the proliferation of the Aedes aegypti mosquito, responsible for transmitting dengue in rural communities of Ica, Peru. The proposal involves a device inspired by traditional copper stills, adapted to simulate human attraction through the emission of CO2 generated by a mixture of yeast, sugar, and water. This design aims to confuse mosquitoes, luring them into the container where they become trapped, thus preventing their reproduction. The initiative addresses the lack of access to potable water and adequate sanitation infrastructure, conditions that promote mosquito breeding sites and increase the risk of infection. The implementation includes the physical design of the device, community education, and awareness through workshops and training programs that encourage community participation and the adoption of preventive practices. The user-centered approach ensures the design is accessible, eco-friendly, and adaptable to different types of water containers, enhancing its effectiveness in rural settings.

Opuntia ficus-indica (OFI) seeds are a promising source of bioactive lipids. The extraction methods significantly influence the composition of extracted oils. In this sense, subcritical and supercritical fluid extraction using CO₂ (SCE-CO₂ and SFE-CO₂) as an extraction solvent offer a greener alternative by reducing volatile organic solvents (e.g., n-hexane) without compromising efficiency and quality of extraction compared to conventional method. In this study, the lipid extraction of two different OFI cultivars (Villanueva and Rojo Vigor) was performed with conventional maceration and sustainable methods (SCE-CO₂ and SFE-CO₂). This study compares conventional and CO₂-based methodologies with or without enzymatic pretreatment in these two Mexican cultivars to evaluate their impact on the lipid composition. The oil yield, fatty acid profile and phytosterol content were evaluated and analyzed through GC-MS to assess efficiency of SCE-CO₂ and SFE-CO₂ (with or without enzymatic pretreatment) against maceration method using n-hexane. The results showed SCE-CO₂ y SFE-CO₂ improved fatty acid purity (p<0.05), particularly in OFI Villanueva cultivar, where oleic and linoleic acids were the major components, indicating that CO₂-based extraction methods, especially SCE in Villanueva provide the most refined lipid profile. Additionally, SFE showed the highest sitosterol content, nearly three times that of maceration (p<0.05). Regarding, the enzymatic pretreatment showed a negative influence in all samples. However, CO₂-based methodologies preserved higher proportion of unsaturated fatty acid and other bioactive lipids, such as γ-sitosterol in all OFI oil samples. These finding highlight the potential of CO₂-based extraction processes as an environmentally friendly alternative to extract high quality OFI lipids.

The process of obtaining the A1 type license in Peru presents multiple challenges, such as high costs, risks in practice with real vehicles, and the limited availability of infrastructure in regions with fewer resources. In this work in progress, the initial development of a virtual reality (VR) simulator designed to replicate the official evaluation circuit of the Ministry of Transport and Communications (MTC) in Huánuco is presented. The simulator combines 3D modeling in Blender with dynamic simulation in Assetto Corsa, integrating haptic hardware to improve the immersive user experience. Although preliminary results show the fidelity of the virtual environment and its potential to reduce costs and improve the effectiveness of preparation for the practical exam, empirical tests with users have not yet been carried out. This work in progress seeks to lay the groundwork for future studies that validate the effectiveness of the simulator in practical contexts and explore the integration of simulated traffic and dynamic environmental conditions.