Conference Agenda

Deforestation and forest degradation in the Peruvian Amazon have caused significant environmental impacts, affecting biodiversity, water resources, and soil stability. However, current legislation has gaps that limit the State's ability to effectively manage forest resources and mitigate these impacts. This study analyzes Law No. 31973, which amends Law No. 29763, the Forest and Wildlife Law, and approves complementary provisions aimed at forest zoning, comparing Peruvian environmental legislation with the regulations of other countries that have achieved effective forest management to identify best practices applicable to Peru. A systematic review of scientific literature and international legislation was conducted using databases such as Redalyc, Scopus, and Google Scholar, with keywords related to deforestation and environmental laws. The results showed that Law No. 31973 weakened forest management by eliminating land classification and restricting the State’s capacity to restore degraded areas. In contrast, Brazil, Guatemala, and Costa Rica have implemented effective strategies, such as economic incentives for conservation (PSA in Brazil, PINFOR in Guatemala), environmental monitoring (CAR in Brazil), and reforestation programs, while India and Sweden stand out for their focus on community participation and sustainable reforestation regulations. It is concluded that Peru could adapt these practices to close legal gaps and promote sustainable development, aligning itself with international commitments on sustainability and climate change, thus fostering responsible environmental management.

The evolution of technologies and efficient methods in plastic recycling has transformed waste management, offering new opportunities to mitigate environmental pollution and promote the circular economy. This study analyzes 50 research papers that explore the latest advancements in this field. It highlights that methods such as mechanical, chemical, enzymatic, and advanced thermal recycling have a significant impact on sustainability and efficiency. Findings indicate that mechanical recycling, although widely used due to its low cost, has limitations regarding the quality of the recovered material. In contrast, chemical and advanced thermal recycling enable greater resource recovery by breaking down polymers into monomers or basic products, although they require higher energy investments. Innovations such as enzymatic recycling show great potential for processing complex plastics, opening new perspectives in the field. The results also emphasize the need to optimize processes and develop infrastructure to overcome challenges such as material purity and operational costs, ensuring a higher recovery rate. Additionally, the study underscores the importance of integrating these technologies with public policies and circular economy models to maximize their positive impact on the environment and reduce plastic pollution.

The contamination of agricultural soils by organophosphate pesticides deteriorates soil fertility and biodiversity, posing environmental and health risks. This study evaluates the potential of Pseudomonas aeruginosa in the bioremediation of contaminated soils, assessing its degradation efficiency and optimization strategies. A systematic review was conducted using scientific databases such as Scopus, Web of Science, and SciELO, applying inclusion criteria that consider recent studies (2014–2024) on the biodegradation of organophosphate pesticides by P. aeruginosa. A total of 34 relevant articles were selected, revealing that P. aeruginosa can degrade up to 90% of compounds such as chlorpyrifos and monocrotophos through hydrolytic enzymes and rhamnolipids, which enhance the bioavailability of contaminants. Key strategies were proposed, including genetic engineering to enhance rhamnolipid production and microbial consortia with bacteria such as Bacillus and fungi such as Trichoderma, which optimize degradation and soil restoration. It is recommended to evaluate its application in highly contaminated Peruvian regions such as Chancay-Lima and San Martín. The integration of stricter environmental regulations and the development of microorganism-based technologies can strengthen agricultural sustainability and mitigate the impacts of pesticides.

This study evaluated the efficiency of a horizontal subsurface flow constructed wetland in removing BOD₅, COD, and total coliforms, considering hydraulic retention time (HRT) and the presence of Phragmites australis. Results showed that HRT had a significant impact on the removal of evaluated parameters, with removal percentages increasing as retention time lengthened. In the control system (without plants), BOD5 removal reached 65.51%, COD 77.81%, and total coliforms 84.16% after 8 days. In the system with Phragmites australis, these values increased to 89.16%, 89.96%, and 94.54%, respectively, indicating that the presence of plants significantly improves system efficiency. Statistical analyses confirmed that both HRT and plant presence have significant effects (p < 0.05) on parameter removal, although no significant interaction was found between them (p > 0.05). This suggests that the effects of both factors are independent, but their combination offers optimal results. In conclusion, this study highlights the importance of implementing constructed wetlands with long retention times and incorporating Phragmites australis as an effective strategy to maximize the removal of organic matter and microorganisms in wastewater treatment.

This study evaluates the use of electrocoagulation with iron and aluminum electrodes to treat Acid Mine Drainage (AMD), focusing on removing heavy metals. The aim was to evaluate the effectiveness of electrocoagulation in removing heavy metals from AMD. The method included taking samples from the AMD, placing them in an electrocoagulation cell, and treating them for 10, 20, and 30 minutes with each type of electrode (iron and aluminum). This research allowed us to evaluate the removal capacity of the iron and aluminum electrodes in the electrocoagulation process, finding that aluminum electrodes have a greater capacity to remove heavy metals such as Mn, Fe, Cr, Cd, Cu, Co, Ni, Pb, and Zn, with removal rates ranging from 83% to 99.5% after 30 minutes. At the end of the process, water of category 3 is obtained, meaning it can be used for irrigation of plants and animal drinking water, according to DS N° 004-2017, which approves the Environmental Quality Standards (ECA) for Water in Peru.

3D printing technology is revolutionizing the world as we know it. The depletion of fossil fuels, increasing energy demand and climate change are problems that demand viable and sustainable long-term solutions. Under these circumstances, the use of additive manufacturing in renewable energy presents itself as a favorable alternative to address this crisis. Therefore, the purpose of this study is to present a systematic literature review based on 3D printing materials and devices or functional components used in renewable energy applications. In order to achieve this goal, the PICOC method was employed with the final retrieval of the selection of articles through the PRISMA methodology. A total of 605 records from 4 indexed databases were identified from the search performed. The variability of materials used in 3D printing is highlighted, including polymeric materials, ceramics, metals, composites, materials of biological origin, recyclable and waste materials, where they play a transforming role in the circular economy. Also, applications of 3D printing are highlighted in devices or functional components for the use of four different renewable energies: wind, marine, bioelectrochemical and solar-electrochemical; where design and manufacturing flexibility are the main advantages exploited. Finally, the coupling of additive manufacturing to other existing and developing technologies has the capacity to drive and generate new routes towards a sustainable energy transition.