Topic 1: Environmental Impact of Materials. Materials¿ Life Cycle.
Description: The environmental impact of materials encompasses the ecological consequences that arise from raw material extraction to their final disposal. During the life cycle of materials, factors such as pollutant emissions, energy and water consumption, and waste generation are considered at each stage: production, use, and disposal. The increasing demand for materials due to population growth places greater pressure on natural resources and ecosystems. Therefore, adopting sustainable practices, such as designing products for greater durability and selecting recyclable or low-impact materials, is crucial.
Topic 2: Circular Economy and Resource Management
Description: The circular economy proposes a production and consumption model that involves reusing, repairing, redesigning, refabricating, and recycling materials to extend their life cycle. This approach reduces the need for extracting new raw materials and decreases waste generation. Adequate management of industrial and urban solid waste is essential within this context. Separating and selecting urban solid waste (RSU) facilitates recycling and reuse, contributing to resource conservation and climate change mitigation. Implementing efficient collection systems and treatment plants can transform waste into valuable resources within a circular economy.
Topic 3: Sustainable Development Goals and Materials Science
Description: The Sustainable Development Goals (SDGs) constitute a master plan for achieving a sustainable future for all. These 17 interconnected goals address global challenges such as poverty, inequality, climate change, health, education, and gender equality. Materials science plays a crucial role in achieving these objectives by enabling advances in areas such as sustainable energy, clean water, health, sustainable construction, rational use of raw materials, and environmental conservation.
Topic 4: Recycling of Metals and Alloys
Description: Recycling metals and alloys is a key process in waste management and environmental sustainability. Metals are highly recyclable materials that can be reused multiple times without losing their properties. The recycling process begins with collecting and classifying metallic waste, followed by smelting and refining to remove impurities. This recycling cycle reduces the need for extracting new resources, decreases greenhouse gas emissions, and saves energy. Additionally, recycling specific alloys requires specialized technologies to separate and recover the different metals they contain.
Topic 5: Comprehensive Metal Cycle. Basic Processes: Pyrometallurgy (Steel Scrap Treatment), Hydrometallurgy (Heavy Metal Recycling). Aluminum Recycling. Tinplate Recycling.
Description: The comprehensive metal cycle encompasses all stages from mineral extraction to final recycling. This cycle includes mining, smelting, product manufacturing, use, and eventual recycling. An integrated approach considers not only recycling efficiency but also product design to facilitate metal recovery at the end of their useful life. Implementing circular economy practices in the metallurgical industry promotes more efficient resource use and minimizes waste, contributing to environmental and economic sustainability.
Topic 6 - Environmental Impact and Recycling of Plastics: Plastic Separation Treatment. Reuse of Thermoset Plastics. Recycling of Thermoset Plastics. Bioplastics
Description: Plastic recycling is a fundamental pillar for sustainability, as it allows us to reduce the environmental footprint by avoiding the extraction of new raw materials and decreasing greenhouse gas emissions. This process involves collecting, sorting, washing, and transforming used plastics into new products, promoting a circular economy. Additionally, plastic recycling and reuse contribute to biodiversity protection and human health by reducing pollution and plastic waste that affects terrestrial and marine ecosystems.
Topic 7 - Environmentally Friendly Plastics: Bioplastics: Advantages
Description: Bioplastics offer an ecological alternative to traditional plastics derived from fossil fuels, providing significant benefits for the environment and sustainability. Among their advantages are biodegradability, allowing them to decompose naturally without polluting; a lower carbon footprint during production, contributing to climate change reduction; and the absence of harmful additives such as phthalates or bisphenol A. Furthermore, bioplastics do not consume non-renewable raw materials and reduce non-biodegradable waste that pollutes the environment. These characteristics make them a preferred option for a more sustainable future.
Topic 8.- Recycling of Composite Materials. Sustainability. Examples: Recycling of GFRP and CFRP. Reuse or Recycling: Cases of Tires, Tetra Paks, etc. Description: Composite materials have a significant environmental impact due to their non-biodegradable nature and the difficulty in recycling them. Recycling these materials is complex and costly, requiring specialized technologies to separate the different components. However, the development of new recycling methods is helping to reduce this impact, facilitating the reuse of fibers and resins and promoting a more sustainable circular economy.
Topic 9 - Recycling of Ceramic and Glass Materials. Integral Glass Cycle. Vitrification Process. Harmful Inorganic Materials: Asbestos and Its Deactivation
Description: Recycling ceramic and glass is essential for sustainability and waste reduction. While ceramics are challenging to recycle due to their durability, glass offers a second life through crushing and remelting processes. Glass bottles and other glass items are transformed into glass powder (cullet), which is then used in the manufacturing of new products. Additionally, some companies reuse ceramic materials in construction projects, contributing to environmental care. The integral glass cycle refers to the complete and sustainable process that begins with raw material extraction and transforms it into glass products, such as bottles and containers. After use, these products are collected and taken to recycling plants where they are crushed and melted to create new glass articles without losing their original properties. This closed cycle significantly saves energy and raw materials while reducing greenhouse gas emissions, contributing to a circular economy and environmental protection.
Topic 10 - Issues with Nuclear Energy Waste. Sustainable Environmental Proposals. High-Activity Waste: ATC and Deep Burial. Dismantling of a Power Plant. Recycling of Nuclear Fuel. Map of the Future of Nuclear Energy.
Description: Nuclear waste generated by nuclear energy poses significant concerns in terms of environmental impact and health. These wastes are hazardous and take hundreds of years to degrade. Nuclear energy, although efficient, is not renewable, and its management is an ethical challenge. To address these issues, solutions such as deep geological storage, nuclear fuel recycling, and the use of fast neutron reactors have been proposed to reduce the environmental footprint and make better use of uranium resources.
Topic 11 - Materials and Devices for Clean Energy Generation: Li-ion Batteries, Na-ion, ¿, Electrochemical Devices for Green Hydrogen Generation, Non-Critical Metals, Photovoltaic Cells, etc.
Description: Clean energy generation refers to the production of electricity and heat using renewable sources that emit few or no pollutants. These sources include solar, wind, hydroelectric, and geothermal energy. By adopting these alternatives, we reduce dependence on fossil fuels and contribute to a more sustainable and healthy planet.
Topic 12 - Recycling of Energy Generation Systems: a) Lead Batteries, Primary Cells, Rechargeable and Reversible Cells, Ni-Cd/Pb/Li-ion Batteries, ¿ b) Photovoltaic Panels (Based on Silicon, Perovskites, ¿). Mercury Management. Fluorescent Bulbs
Description: The recycling of batteries and cells reduces pollution from heavy metals and toxic chemicals. Materials such as lead and acid are recycled, and metals are recovered to manufacture new batteries. Mercury management encompasses its controlled use and responsible recycling to minimize environmental impacts based on Regulation (EU) 2017/8521, which limits its use in products and promotes proper mercury waste management, focusing on reducing mercury in circulation and establishing criteria for its safe storage and disposal.