Search results for "CIRCULAR ECONOMY"
showing 10 items of 179 documents
Fatty Acids and Triacylglycerols Profiles from Sicilian (Cold Pressed vs. Soxhlet) Grape Seed Oils
2021
Among the Sicilian economic productive sectors, that of wine production has today a considerable economic value. However, with the growth of this sector, notable was the increase in the production of waste, which to date is not only an economic damage for companies, but also a threat to the environment. It is known that waste from wine production has properties (e.g., antioxidants) which have potential reuse at cosmetic, pharmaceutical and nutritional levels to obtain economically sustainable applications. A new goal is given by the recovery of added value compounds from agri-food wastes and by-products. Grape seed oil is a promising vegetable fat and cold pressing does not involve the use …
Values created by circular solutions in the buildings sector for companies and municipalities as key actors
2016
Gospodarka o obiegu zamkniętym uznawana jest za narzędzie na rzecz eliminacji lub ograniczenia odpadów i emisji, co ma prowadzić do poprawy wydajności zużycia energii i surowców podczas aktywności ludzi w życiu społeczno-gospodarczym. Jednak wdrażanie rozwiązań opartych na gospodarce o obiegu zamkniętym w sektorze budownictwa wymaga nowego podejścia, co może być postrzegane jako trudne, niewygodne lub zbyt skomplikowane, ponieważ „tradycyjne” rozwiązania wydają się łatwiejsze. Głównym celem artykułu jest określenie, jakie wartości mogą być wykreowane przez firmy doradcze dla ich klientów w sektorze budownictwa dzięki rozwiązaniom opartym na gospodarce o obiegu zamkniętym, a także, jakie spo…
Le start-up e PMI ‘innovative’ e la loro rilevanza nella ‘Green Economy’ e nella ‘Circular Economy’: proposta per uno statuto fiscale
2022
Il contributo, muovendo dal quadro normativo e definitorio delle start-up e pmi innovative, dall'analisi dell'attuale disciplina fiscale e dalla constatazione della rilevanza che le start-up green hanno nel PNRR, elabora una sorta di statuto-fiscale per tali tipologie di imprese, identificando sei proposte normative: estendere le agevolazioni al settore “green” in linea con le previsioni del PNRR; graduare le agevolazioni fiscali in ragione della fase di sviluppo dell’azienda che riceve l’investimento (e della sua natura di impresa “green”) e consentire una maggiore deducibilità delle perdite della start-up; razionalizzare l’attuale quadro normativo delle agevolazioni fiscali per start-up e…
The Application of Supercritical Fluids Technology to Recover Healthy Valuable Compounds from Marine and Agricultural Food Processing By-Products: A …
2021
Food by-products contain a remarkable source of bioactive molecules with many benefits for humans; therefore, their exploitation can be an excellent opportunity for the food sector. Moreover, the revalorization of these by-products to produce value-added compounds is considered pivotal for sustainable growth based on a circular economy. Traditional extraction technologies have several drawbacks mainly related to the consumption of hazardous organic solvents, and the high temperatures maintained for long extraction periods which cause the degradation of thermolabile compounds as well as a low extraction efficiency of desired compounds. In this context, supercritical fluid extraction (SFE) ha…
Organisational Drivers and Challenges in Circular Economy Implementation : An Issue Life Cycle Approach
2022
Business is a significant cause of various global sustainability challenges addressed by the Circular Economy (CE), making companies instrumental in the transition from a linear economic model to a circular one. While drivers and challenges in corporate CE implementation have been researched on an organisational level, a more detailed understanding is needed regarding their contextual nature and interplay with the evolution of CE implementation in a company. Utilising issue life cycle theory, this study contributes to the literature on CE implementation in business by displaying differences in corporate CE implementation drivers and challenges, relating to the time since starting, and the …
Supplementing air with CO2 stripped from recirculating aquaculture improves growth of two green microalgae in aquaculture wastewater
2023
To improve sustainability and to implement the principles of circular economy in aquaculture, we tested the possibility to boost the capture of nitrate by two green microalgal species from recirculating aquaculture system's (RAS) wastewater by supplementing air with carbon dioxide stripped from a RAS. Carbon dioxide addition increased cell densities of Monoraphidium griffithii and Haematococcus pluvialis in photobioreactors during 9-day growing periods. However, growth rates and nitrate uptake rates were only improved for M. griffithii. Addition of CO2 decreased pH of the medium with M. griffithii which likely also affected positively on algal growth and nutrient uptake. These laboratory sc…
The green granary of the Empire? Insights into olive agroforestry in Sicily (Italy) from the Roman past and the present
2023
Groves with ancient olive trees (Olea europaea L.) could be considered remnants of old agroforestry systems. Anything but static, these agro-ecosystems have undergone drastic transformational processes in Mediterranean countries, where abandonment or intensification have been observed far more than continuity, expansion or renaissance, leading to environmental degradation of rural areas. Starting from this assumption and inspired by historical ecology and historical geography, we consider centuries-old olive trees as living archives of human-nature interactions and are thus proxies of past agroforestry. Our aim is to better understand what has driven dynamics of change and persistence, happ…
Examining the critical factors that influence the success of construction and demolition waste reverse logistics operations
2022
The reverse logistics (RL) performance of construction and demolition waste (C&DW) differs significantly between countries. Although some countries are successfully circular, other countries are still far behind; with C&DW being largely directed to landfills or being illegally dumped. There is a lack of guidelines on the requirements for transitioning countries towards C&DW diversion, and little attention has been given to the factors that influence the success of C&DW RL and increased circularity. This study aims to develop a framework that helps in structuring and assessing the success of C&DW RL on a regional level and serves as a guide for transitioning developing co…
Bold ambition, blunted agency? : Examining top management perspectives on a circular economy transition in Finland
2022
The circular economy is proposed as a company-driven means to further sustainability transitions. Top managers have a critical role in fostering the circular economy as they are responsible for shaping and implementing a company's sustainability strategy and performance. In this paper, we adopt a microfoundations perspective to enhance our understanding of the influence of top managers as agents of the sustainability transition to the circular economy. In a qualitative research study, we interviewed 34 top managers of Finnish companies that are actively pursuing the circular economy. The main implication of our study is in exploring the role of top managers, as they engage in actively struc…
Examining the role of waste-to-energy in a circular economy in Finland with meeting a zero-waste goal
2016
As the concept for circular economy gains traction in the world and the EU pushes for the transition from a linear economy to a circular economy model, the role of waste-toenergy is crucial in a circular economy as it is the last chance to extract value out of material at the same time as providing an alternative energy source, henceforth bringing together a closed-loop system. A functioning circular economy will also have minimal waste generated which is sync with the idea of zero-waste. How all these aspects really work together is the focal point of this Master’s thesis where the aim is to see how the three factors of waste-to-energy, the circular economy and a zero-waste goal work toget…