Anaerobic co-digestion technology is increasingly used to simultaneously treat solid and liquid organic waste to balance nutrient content, to reduce the negative effects of toxic compounds in the process, and to increase biogas yield. The aim of this study was to analyze the economic performance of co-digestion plants fed with agro-industrial wastes as a function of installed power, with a method of discounted cash flow. The study focused on Italian framework conditions concerning payment for electricity produced by anaerobic digestion (AD) plants as well as the production costs. The economic analysis was carried out using three different plant sizes: 100 kW, 500 kW, and 1000 kW, which are representative of biogas plants in Italy. The study showed that the improvement of the break-point is closely linked to the increase in corresponding plant size. Given the assumptions of the simulation, the payback for the 100 kW plant was nine years for both the all-inclusive tariff and the basic feed-in tariff (BFT). Regarding the 500 kW and 1000 kW plants, the payback periods were five and four years, respectively.

The transition to a circular economy bodes well for a future of environmentally sustainable growth and economic development. The implications and advantages of a shift to a circular economy have been extensively demonstrated by the literature on the subject. What has not been sufficiently investigated is how this paradigm can be enabled through the inter-organisational cooperation among different business enterprises. In order to illustrate this point, in this paper we aim to contribute to the circular economy debate by describing and discussing such a meta-model of inter-organisational cooperation. The present study is therefore based on the analysis of three cases from an equal number of industries, from which we identified factors of potential impact for the stimulation of cooperation in a circular economy perspective. Last, but not least, we discuss the relations between the case studies and try to formulate all possible implications for both managers and research.

Circular economy and corporate social responsibility in the agricultural system: Cases study of the Italian agri-food industry | Simona Fortunati, Donato Morea, Enrico Maria Mosconi | Agricultural Journals

Sustainability is often explained through three dimensions (society, economy and environment). However, such a definition currently appears to be restricted. Sustainable development often includes the energy issue. An example of realities founded on bioenergy are agro-energy districts. These realities involve all the three dimensions of sustainability, integrating also the energy dimension and fueling a potential circular economy. Based on these premises, the most affluent rural subdivision in Italy is that of wine. The wine sector has experienced a recent growth of its economic market, diverging from other agricultural activities and enlarging its cultivated surface areas. In this sense, the local landscape has also changed. Owing to the strong inclination of the wine sector in adopting sustainable strategies and measures, agro-energy districts can be the following future phase in viticulture realities as a cutting-edge business in the modern agricultural sector, implementing new strategies and opportunities.

A circular economy has been gaining momentum as the most innovative approach in business. Its proposed model, based on sustainability and new product-driven differentiated strategies of production and organizational exchange, has brought to light the need to better understand the relevance of stakeholders as a critical factor in the creation of new added value in business management. The primary purpose of this paper is to investigate how the B-Corp Certification System could contribute to a process of awareness raising in business organizations. It also focuses on the stakeholders’ commitment, within the framework of circular economy principles, and demonstrates that those companies who are adopting the certification concerning “recycling service and waste management” strongly contribute to the development in the direction of the circular economy. The analysis of the case studies shows two possible scenarios describing the circular approach in business and the different roles of stakeholders in the activation of such a virtuous path. “Social recycling” considers the key role of social participation and contribution in circular-economy related activities of primary and secondary stakeholders, and “highly regenerative recycling” aims to involve qualified stakeholders to start inter-organizational symbioses within the circular process of waste recycling. Key factors, such as industrial symbiosis, tax benefits, financial incentives, legislative harmonization, and the consumers’ behavior, represent the tenets of the circular economy model An awareness-raising perspective and the capacity on the part of companies to understand the relevance of stakeholders and the way to transform their role into the most effective lever to reinforce competitiveness is therefore necessary. Accordingly, the whole system of Benefit Corporation certification could boost business towards new business models involving stakeholders in several directions.