Building renovation was declared a key point for sustainable development, however, the renovation rate of residential buildings in the European Union is insufficient to meet the climate and energy targets set. This paper analyses the main circular economy models used in the construction sector, as well as the situation of the building renovation market, to set a framework for circular economy models in building renovation. Of all the existing strategies in this sector, design, material recovery, building renovation and end-of-life actions would be the best, respectively. It also includes a market analysis consisting of a literature review covering PEST perspectives (political, economic, social and technical) and a SWOT analysis (strengths, weaknesses, opportunities and threats), concluding with a market gap analysis. The results of these analyses allow the development of a series of suggestions and strategies to be followed in order to solve the main barriers that hinder the implementation of the circular economy in the building´s renovation sector.

The acceptance of bio-based products by consumers is one of the fundamental pillars to achieve the integration of a circular economy model in society. This article analyses the results obtained in a large-scale survey on the social acceptance of bio-based products, especially those obtained from Absorbent Hygiene Products, where a statistical analysis of the data collected is performed to establish rules of thumb and conclusions on the factors considered most significant for consumers in their purchasing decisions. The study was carried out in four European countries, and the sample population covered different age ranges, genders and economic statuses. The main findings are that the most critical factors relate to price, quality and ease of use, but other factors, such as environmental benefits, composition and origin of materials, also affect bio-based products. In addition, this study concludes that most people do not understand some important aspects related to bio-based products, and product information and communication channels need to be improved. Therefore, purchasing strategies for bio-based products should focus on addressing these shortcomings, making the decision to buy bio-based products a quick and easy action.

This study investigates the application of the Analytic Hierarchy Process (AHP) as a decision-support mechanism for managing complex sustainability issues in industrial settings, specifically within the framework of circular economy principles. Focusing on a case from the brewery sector, developed under the EU ECOFACT initiative, this research evaluates ten distinct configurations for the must cooling process. These alternatives are assessed using environmental, economic, and technical criteria, drawing on data from life cycle assessment (LCA) and life cycle costing (LCC) methodologies. The findings indicate that selecting an optimal scenario involves balancing trade-offs among electricity and water consumption, operational efficiency, and overall environmental impacts. Notably, Scenario 3 emerges as the most balanced option, consistently demonstrating superior performance across the primary evaluation criteria. The use of AHP in this context proves valuable by introducing structure and transparency to a multifaceted decision-making process where quantitative metrics and sustainability objectives intersect. By integrating empirical industrial data with an established multi-criteria decision approach, this study highlights both the practical utility and existing limitations of conventional AHP, particularly its diminished ability to discriminate between alternatives when their scores are closely aligned. These insights suggest that hybrid or advanced AHP methodologies may be necessary to facilitate more nuanced decision-making for circular economy transitions in industrial environments.

The development of a resilient and circular bio-based economy is of paramount importance, notably in the EU, where current climate policies and evolving regulations strongly demand more sustainable practices, impacting monitoring and reporting, as well as the deployment of novel valorization routes for byproducts and waste streams. In this context, with the aim of assessing the current state of the European bio-based economy, a comprehensive analysis based on socio-environmental, socioeconomic, and technical indicators was carried out on major sectors, namely textiles, woodworking, pulp and paper, bio-based chemicals and materials, liquid biofuels, and bio-based electricity. Each sector was evaluated with respect to its main biological raw materials, and a methodology is proposed to link their geographical origin (inside or outside the EU), import shares, and internal production with socio-environmental impacts, based on official databases and indexes. Socioeconomic data (turnover and employment) and technical data (average bio-based content within the main products of the sector) were also considered for the analyses, allowing a multi-angle comparison between sectors and the identification of barriers and opportunities for future developments. Finally, a quantitative and qualitative overview of non-hazardous biogenic waste streams generated in the EU is presented, and opportunities for their valorization and reintegration into the EU bio-based economy are discussed. As a result of this analysis, beyond enabling the assessment of each sector within the bio-based economy, along with the assignment of values for comparison, the implementation of this evaluation facilitated the identification of improvement pathways, which were consolidated into a set of proposals.

This work identifies relevant sustainability targets from the UN’s Sustainable Development Goals (SDGs) for main value chains of biobased products, categorized into four dimensions: environment, circularity, social, and economics. Of the 17 Sustainable Development Goals (SDGs), 85 targets were identified as aligning with sustainability criteria for industrial biobased systems. Six sectors with biobased activity were analyzed, chemicals, construction, plastics, textiles, woodworking, and pulp and paper, each represented by 3–5 value chains. These value chains were chosen based on certification availability, production scale in Europe, economic importance, and potential to replace fossil-based products. In total, 25 value chains were assessed qualitatively for their positive, negative, or neutral impact on each selected SDG target, using public data like EU reports, life cycle analyses, and expert insights. The results showed that 43 SDG targets were directly applicable to the value chains, with higher synergies for those using waste as feedstock over primary resources like crops or virgin wood. Overall, advances in technology and holistic approaches are paving the way for biobased solutions to replace resource-intensive, petroleum-derived materials and chemicals. These alternatives offer additional advantages, such as enhanced recyclability, biodegradability, and reduced toxicity, making them promising candidates for sustainable development. This study underscores that technological progress and a comprehensive approach can further advance sustainable biobased solutions in industry and have a relevant positive impact on various SDGs.

This study explores and compares stakeholders’ perceptions of biobased products over the last few years. Three groups of stakeholders are included: consumers, the business-to-business market, and public procurers. The main research method consists of a qualitative analysis of some of the results obtained in a series of surveys in Europe-wide projects with the aim of understanding the behaviour, motivations, and concerns of stakeholders related to biobased products. The aim is to gather up-to-date information on the opinion of society from the perspective of the different actors on this type of product, focusing on textiles, in order to make a series of proposals to favour their inclusion in the market, while at the same time answering which are the most influential aspects when it comes to favouring or complicating the access of bioproducts to the market. The document compiles information from multiple sources and years (2014–2020) and, together with the most current and available information (2021), is processed in such a way that the information can be compared across years and stakeholders, allowing to observe the evolution over time of societal perspectives and the variation in opinion according to stakeholder. The results are presented according to three themes: (1) level of awareness, (2) product information, and (3) benefits, drivers, and barriers. The main findings indicate a general lack of awareness of biobased products, as well as several divergences in terms of the best methods to promote market access for biobased textiles.