The economy that runs on waste: accumulation in the circular city

Savini, Federico

doi:10.1080/1523908x.2019.1670048

Cited by 105 publications

(81 citation statements)

References 46 publications

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“…Today, the challenge of the social, economic, and environmental impacts of food waste has become an urgent issue globally. The main causes of food waste or loss are the production, processing, retail, and consumption stages [ 1 ].…”

Section: Introductionmentioning

confidence: 99%

Effect of Drying Methods on Bioactive Compounds and Antioxidant Capacity in Grape Skin Residues from the New Hybrid Variety “BRS Magna”

et al. 2020

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The effects of the drying process using the conventional oven and freeze-drying on the thermogravimetric profile, proximate composition, color parameters, individual bioactive compounds, and antioxidant activity in the grape residue (skin) were evaluated. Twenty individual phenolic compounds were identified, where a variation in concentration was observed for flavonols, stilbenes, phenolic acids, flavonoids, procyanidins, and particularly anthocyanins (malvidin-3,5-di-O-glucoside of 253.2–536.9 mg/kg) due to the drying process. Drying in a conventional oven caused a decrease of 23% of the total polyphenols. The skin of the BRS magna grape has a high concentration of total phenolic content of 489.5–148.3 mg.GAE/100 g, total anthocyanin content of 124.9–260.1 mg.CE/100 g, and total flavonoid content of 12.7–26.0 mg.QE/100 g. The results of free radical scavenging activity (1.26–4.91 μg/mL, as EC50) and ferric reducing antioxidant power (82.93–184.10 μmol/g of skin as equivalent to Fe2SO4) indicate high antioxidant activity, independently of the drying process applied. It was concluded that, if the application is directed to anthocyanin compounds, the use of lyophilization is recommended. On the other hand, if the interest is in bioactive compounds that exert antioxidant activity, conventional oven-drying can be used.

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Section: Introductionmentioning

confidence: 99%

Effect of Drying Methods on Bioactive Compounds and Antioxidant Capacity in Grape Skin Residues from the New Hybrid Variety “BRS Magna”

et al. 2020

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“…Regularly, solutions were combined with new business models. These results differ from the few other studies on CE that address CE implementation at local level, particularly in the Netherlands (viz., Fellner et al, 2017;Campbell-Johnston et al 2019;Savini, 2019). These authors argue that the cities they studied (among which Amsterdam) prioritise lower value CE options, namely, recycling, and end up with relatively low recycling rates.…”

Section: Discussionmentioning

confidence: 99%

“…Campbell-Johnston et al (2019) conclude that the limited scope of instruments at city level to affect and compel stakeholders along the value chain leads to prioritising lower value CE options, namely, recycling. On the same note, Savini (2019) argues that the modern paradigm of waste disposal and recycling fails to cope with increasing waste stock and relatively low recycling rates, especially in urban agglomerations. This argument is echoed by Fellner, Lederer, Scharff, and Laner (2017).…”

Section: Theoretical Backgroundmentioning

confidence: 99%

Implementing the circular economy in the Amsterdam Metropolitan Area: The interplay between market actors mediated by transition brokers

Cramer

2020

Bus Strat Env

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This paper analyses the interplay between regime and niche actors in implementing the circular economy through mediation by transition brokers. The study is based on ‘action research’ carried out in the Amsterdam Metropolitan Area. Innovation science is adopted as theoretical approach. First, the analysis shows that more ambitious initiatives could be taken than by individual market actors. Whether these circular initiatives represent just incremental change—as other studies suggest—cannot be concluded. Rather, it is plausible to conceptualise the transition process as a continuous transformational change. Second, in creating circular initiatives, the interplay between regime and niche actors was evident but varied. Actors could team up more easily where their interests aligned. This conclusion corresponds with recent innovation literature, which emphasises the importance of linkages between processes at niche, regime and landscape levels. Before generalising the results, similar studies in other regional contexts would be valuable. Short informative In moving to a circular economy, the willingness of market actors to innovate is crucial. Real‐life experiments on the implementation of circular initiatives built by market actors at local level through the mediation of independent intermediaries (here called ‘transition brokers’) are scarce. This study aims to bridge this knowledge gap by focussing on the interplay between niche and regime actors. Action research on implementing the circular economy programme in the Amsterdam Metropolitan Area (2015–2020) represents an example. Innovation science is adopted as leading theoretical approach. The case shows that more advanced ambitions could be achieved than through individual market actors by themselves. Whether the circular initiatives built represent just incremental change—as suggested in the few other studies—is considered too simplistic. It is concluded to conceptualise the CE transition rather as a continuous, transformational change which takes time. The interplay between niche and regime actors was evident in the case but varied. Niche actors could team up more easily with regime actors where their interests coincided. Niche CE innovations did not necessarily develop in protected environments, as suggested by early MLP studies. They could diffuse more widely if they link up with ongoing processes at regime and landscape level. This conclusion corresponds with the more recent innovation literature.

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“…Far from being a fully worked out programme, the CE in Amsterdam functions as a narrative that "glues" a patchwork of urban projects, policies, and regulatory reforms that address the issue of resource efficiency. The origins of the CE policy discourse in Amsterdam can be traced back to the early debates on the efficiency of the waste and water utility sector in this city which took place back in 2009 [49]. The green-left government at that time devised implementation programmes for its newly edited strategic vision, documents that had the aim of combining economic development and sustainable urbanism (Structuurvisie Amsterdam 2040, structural vision Amsterdam).…”

Section: Circular Governance In Amsterdam and Turinmentioning

confidence: 99%

Transformative Urban Living Labs: Towards a Circular Economy in Amsterdam and Turin

et al. 2020

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The circular economy is becoming a field of experimentation to trigger site-specific laboratories oriented towards connecting material flows and citizens’ practices. Despite their wide use, a critical perspective of the transformative paths of these Urban Living Labs (ULLs) is still missing. This paper compares the paths followed by two such experiments, one in Amsterdam (The Netherlands) and the other in Turin (Italy). To this end, we build an analytical framework that targets three dimensions: unconventionality, autonomy, and systemic impact on policies. We conclude that ULLs can take very different transformation paths over time due to a wide range of enablers and barriers. In Amsterdam there has been an assimilation in the neighbourhood as well as a transformative effect on an urban scale; while the case of Turin has turned out to be potentially transformative but also at risk of marginalization.

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The economy that runs on waste: accumulation in the circular city

Cited by 105 publications

References 46 publications

Effect of Drying Methods on Bioactive Compounds and Antioxidant Capacity in Grape Skin Residues from the New Hybrid Variety “BRS Magna”

Effect of Drying Methods on Bioactive Compounds and Antioxidant Capacity in Grape Skin Residues from the New Hybrid Variety “BRS Magna”

Implementing the circular economy in the Amsterdam Metropolitan Area: The interplay between market actors mediated by transition brokers

Transformative Urban Living Labs: Towards a Circular Economy in Amsterdam and Turin

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