Conference Agenda

Cities are growing worldwide and the problem of Urban Heat Islands (UHI) is increasingly worrying due to human activities and climate change. Various studies propose urban green infrastructure as a sustainable and effective solution to mitigate UHI, especially in subtropical and warm cities. Based on this, the objective of this research is to collect information regarding the evaluation and mitigation methods of UHI in different cities around the world in the last 5 years (2020-2024). To this end, various strategies were analyzed, such as cool pavements, green and blue spaces. To this end, a search for information was carried out in the electronic databases of ScienceDirect, Google Scholar and Scopus, excluding articles based on established criteria and finally selecting fifteen relevant articles which were classified, ordered, analyzed and compared for their full-text evaluation. In conclusion, as cities continue to grow, they would face the challenge of climate change. Green infrastructure in conjunction with a sustainable urbanization plan can provide a comprehensive solution that would not only improve urban well-being and reduce temperatures, but would also contribute to achieving governments' sustainable development goals. Future studies should focus on evaluating and developing new green technologies and materials that improve the efficiency of green infrastructure and green and blue areas, as well as further simulations and analysis in cities with different climates and urban characteristics.

This study addresses the characterization and fractionation of organic matter and nitrogen in effluents from the cattle slaughtering process, aiming to generate key information for optimizing their treatment. The methodology included the collection and physicochemical characterization of the effluents, followed by the fractionation of organic matter and nitrogen using sequencing batch reactors and applying Pearson correlations to the obtained results. High concentrations of COD (12,867 mg/L) and BOD₅,20 (5,282 mg/L) were identified, indicating moderate biodegradability. Likewise, total Kjeldahl nitrogen (TKN) reached 529 mg/L, and total phosphorus 13 mg/L, exceeding regulatory limits. The results showed that 21.2% of the COD corresponds to non-biodegradable fractions, and that inert and particulate organic nitrogen represents a significant proportion of the TKN, which limits the effectiveness of conventional biological treatments. It was concluded that, for efficient removal of the pollutant load, a combined treatment scheme is necessary. Pretreatment with dissolved air flotation (DAF) is recommended for the removal of solids and fats, followed by a biological process using sequencing batch reactors (SBR) for the elimination of biodegradable organic matter and nitrogen. Finally, coagulation-flocculation and activated carbon adsorption are proposed as complementary strategies for the removal of recalcitrant fractions. This integrated approach ensures compliance with environmental regulations and promotes sustainability in the meat processing industry.

This study aimed to evaluate the removal of contaminants (COD, nitrogen, and phosphorus) through the use of microalgae cultivated in photobioreactors (PBR). The research was conducted using four pilot-scale PBRs inoculated with a microalgal concentrate (Scenedesmus almeriensis) at a concentration of 1 g/L. The PBRs were supplied with CO₂ and compressed air to determine whether CO₂ influences microalgal growth by enhancing nutrient assimilation.

The quality of domestic wastewater was assessed through parameters such as pH, temperature, total suspended solids (TSS), chemical oxygen demand (COD), total organic carbon (TOC), total nitrogen, and total phosphorus. The experimental setup for the four PBRs was as follows: PBR 1: 100% wastewater, microalgal inoculum, compressed air, and CO₂; PBR 2: 70% wastewater, 30% dilution water, microalgal inoculum, compressed air, and CO₂, PBR 3: 70% wastewater, 30% dilution water, microalgal inoculum, and compressed air and PBR 4: 100% wastewater, microalgal inoculum, and compressed air.

The results demonstrated that nutrient removal efficiency in all four PBRs was optimal, exceeding 90% for total nitrogen and total phosphorus. The highest removal rates were observed in PBR 1, achieving 92% nitrogen and 96% phosphorus removal.

In conclusion, microalgae exhibit significant phycoremediation activity, presenting an eco-friendly technology with great potential for further research due to the vast diversity of microalgal species.

In this scientific article, the research focuses on raising awareness about community sustainability and how it has become a fundamental pillar of urban development, influencing the planning and design of architectural spaces with a cultural focus. Additionally, the study explores the intersection between sustainability, architecture, and culture through the evaluation of library parks in different urban contexts. This study analyzes three cases of library parks, assessing their impact through measurable criteria. The results show that integrating sustainable strategies not only reduces environmental impact but also strengthens the sense of belonging and citizen participation. Finally, the study highlights the need to continue promoting policies and projects that integrate community sustainability as a central axis of urban and cultural development.

The accelerated growth of cities has generated environmental and social challenges due to the predominance of gray infrastructure, characterized by buildings without integration with nature, which has intensified the heat island effect, atmospheric pollution and the fragmentation of urban ecosystems. In response, architecture and urbanism have incorporated nature-based strategies to promote more sustainable and resilient urban environments. This study presents a literature review on the integration of nature in urban design through green infrastructure, addressing strategies such as green roofs and facades, ecological corridors and multifunctional urban parks, which have proven to be effective in thermal regulation, water management. and the improvement of social well-being. Through the PRISMA method, articles indexed in SCOPUS were analyzed, identifying trends, challenges and opportunities in the implementation of these solutions. The results show that, although green infrastructure offers multiple benefits, its adoption faces regulatory, economic and technical barriers. The need for an interdisciplinary approach in urban planning is emphasized, where ecology, architecture and citizen participation work together to ensure its viability. It is concluded that the transformation of cities through the integration of nature is key to facing the challenges of climate change and improving the quality of urban life through sustainable and inclusive design strategies, ensuring equity in access to natural spaces and resilience. environmental in urban development.

Microplastic contamination (< 5 μm) is a global problem with social, economic and environmental impacts. Its presence in marine species for human consumption has raised concerns due to the risks to health and ecosystems. Although legislation and analytical techniques have advanced worldwide, in Peru studies and regulations are still limited.This research was carried out in the Pucusana fishing market, where microplastic contamination has been detected in the coastal area. The digestive tracts and soft tissue of Mugil cephalus, Trachurus murphyi and Aulacomya atra were analyzed using stereoscopic microscopy, obtaining 100% positive cases, with T. murphyi as the species with the highest amount of microplastics. In all the individuals analyzed, synthetic fibers were the predominant type (> 80%). For the identification of microplastics by epifluorescence microscopy, Rhodamine B (100 µg/mL) was used and compared with Nile Red (10 µg/mL). Although microplastics treated with Rhodamine B at a concentration of 100 µg/mL showed fluorescence, it was lower in intensity than with Nile Red at a concentration of 10 µg/mL.