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The circular economy is a social, technological and economic paradigm that aims to build a production and consumption model focused on waste reduction and maximization of discarded matter recovery. Discussion of the circular economy often treats it as a technocratic and profit-driven phenomenon that can be developed by capital investment in a particular industrial sector without necessarily taking into account the needs of the surrounding geographic area. The promotion of the circular economy often emphasises recycling and other practices that may not fully use the recovered material but are highly automatable, thus creating only a limited number of jobs. At the same time, there is another model of the circular economy, in which small and medium-sized organizations engage in transformative and low-technology activities such as reuse and repair, benefiting local development and creating job opportunities. This model is often explicitly driven by a social development mandate. Still, it risks falling short of its goals because of a lack of expertise and a less systematic approach. This paper aims to introduce the Design-led Repair & Reuse (DLRR) framework for mitigating the shortcomings of this second model, using an approach that is both sustainable and accessible to organizations with limited resources. Inspired by the principles of "Design-driven innovation", "social & solidarity economy", and "appropriate technology", DLRR aims to generate a higher quality of processes and products from circular, low entropy and low capital-intensity production activities, resulting in a more solid, identifiable and conscious positioning in the reuse market. It complements the socially inclusive ethos of these third sector small and medium-sized organizations while contributing to the debate on integrating alternative perspectives into the mainstream circular economy discourse. The first part of this paper discusses the theoretical principles that have inspired the DLRR framework. The second part presents research that tests the consistency of these founding principles based on a case study of a sample of organizations in Italy that are active in circular waste transformation processes. • The circular economy is an emerging paradigm in the race to achieve environmental sustainability. • Mainstream discourse on circular economy often does not focus on the social dimension of sustainability. • This discourse often interprets circular economy in a technocratic way, emphasizing high-tech, capital intensive approaches. • Reuse and repair practices are more technologically accessible, and can foster the creation of job opportunities. • A Design-led reuse and repair approach can contribute to strenghten the social dimension of circular economy. [ABSTRACT FROM AUTHOR]

In the current scenario of transition to a Europe-wide circular economy (CE), the Waste-to-Energy (WtE) treatments represent a smart solution to generate renewable energy, reduce landfills and ensure sustainable waste management. The costs and environmental impacts of existing WtE treatments are very different for each available technology. In many cases, their identification is affected by a set of variable boundary conditions strongly dependent on local municipal requirements. In light of these considerations, the paper aims to compare the investment in three different WtE treatments (i.e., incineration, gasification, and flameless oxy-combustion) to identify the best solution to support the current transitional phase towards a CE condition. An overall yearly cost analysis was developed by varying local municipal requirements, including investment, operating, and carbon emissions costs. The overall yearly cost and the revenues, due to energy sales and tipping fees, allowed to evaluate the profitability of the investment in the plant lifetime to identify the best WtE treatment. The investment profitability was evaluated by adopting the Net Present Value (NPV) method by estimating the cash flow statement over the entire plant lifetime. The performance of the three WtE treatments, classified as "conventional" (i.e., gasification and incineration) and "innovative" (i.e., flameless oxy-combustion), were compared in a case study concerning Southern Italy's Metropolitan City of Bari. The applied methodology showed, in this case, that gasification, at the moment, has to be deemed as the most sustainable treatment for MSW management. Moreover, the study proved a high dependence between the carbon price and the profitability of the investment and, thus, in the next future the innovative oxy-combustion technology will gain an advantage over all the other technologies, when carbon price will be higher than 44 €/tonnes CO2. [ABSTRACT FROM AUTHOR]

This VSI focuses on what cross-cutting insights might be gained from research to increase the energy/materials circularity and the contribution of eco-innovation, cleaner consumption, and waste management to produce a logical body of knowledge that may lead to increased resilience and a sustainable Planet. The articles' collection shows development trends of sustainable, cleaner production under the Special Issue: A Resilient and Sustainable World. Some selected d papers have been presented and emerged from the 10th and 11th International Workshop on Advances in Cleaner Production (IWACP), held in hybrid mode in Italy (Ferrata and Florence). The contribution of the articles in this Special Issue could be divided into efforts toward sustainable and cleaner production, aiming (i) Eco-innovation for cleaner production and circular economy, (ii) Proper monitoring and identification of cleaner production, circular economy, and eco-innovation, (iii) cleaner production, circular economy and eco-innovation targeting social wellbeing and cleaner environment, (iv) cleaner production, circular economy and eco-innovation targeting emission reduction, and (v) cleaner production, circular economy and eco-innovation targeting improved and optimized production processes. [ABSTRACT FROM AUTHOR]

Biogas production and use can represent a win-win strategy providing multiple opportunities to mitigate the emission of greenhouse gases responsible for climate change, while offering a range of important social, environmental and economic benefits. Nevertheless, as for other bioenergy pathways, biogas sustainability needs to be carefully assessed and continuously monitored in light of the specific geographic and temporal context in which it performs. This paper aims to provide a comprehensive review on the sustainability assessment of domestic production and use of biogas in Italy, with a focus on the environmental dimension of the sustainability. Furthermore, it elaborates the results of the review to perform an ex-novo sustainability assessment of biogas pathway at national level, through the methodology developed by the Global Bioenergy Partnership. The biogas value chain in Italy can play a positive role to foster the transition towards an ecological and circular economy. This paper highlights both weaknesses and strengths of the biogas value chain in Italy and points out existing differences, in relation to the sustainability of the value chain, between various geographical areas of the country. The outcomes of this study could inform, both at national and international scale, the drawing of tailor-made policies and measures to reduce biogas-related potential risks of environmental impacts, as well as to support the replication and scaling up of successful management practices. Furthermore, they could serve as a baseline for the future monitoring of the sector. Ultimately, the paper reports the key difficulties encountered in the implementation of the GBEP methodology and the solutions adopted to overcome them. [Display omitted] • Three-quarters (75.4%) of the Italian biogas production takes place in the Po river valley, one-third comes from Lombardy. • Maize silage and livestock manure are the most common feedstocks in Italian biogas plants. • Roughly 80 k tons of nitrogen contained in livestock manure were treated by biogas plant in Italy in 2016. • The main source of GHG emissions along the biogas pathway in Italy lies in the cultivation of dedicated bioenergy crops. • Water shortage hampers the development of the biogas sector in southern Italy, restricting the cultivation of energy crops. [ABSTRACT FROM AUTHOR]