Assessing the environmental performance for more local and more circular biowaste management options at city-region level

Zeller, Vanessa; Lavigne, Carolien; D’Ans, Pierre; Towa, Edgar; Achten, Wouter

doi:10.1016/j.scitotenv.2020.140690

Cited by 51 publications

(24 citation statements)

References 55 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…For example, in their paper, Demichelis et al concluded that for the case study of Italy biowaste treatment, avoided CO 2 emissions were increased between 10% and 89.9%, when applying AD instead thermal treatment [40]. The work of Zeller et al, analysing circular biowaste management options at city-region level, concludes that AD treatment combined with separate collection may be beneficial in terms of meeting environmental criteria (based on life cycle assessment) [41]. Research by Maroušek et al indicates that the benefits of AD technology can be extended by further using the digestate to produce biochar [42].…”

mentioning

confidence: 99%

The Circular Economy and Organic Fraction of Municipal Solid Waste Recycling Strategies

2020

View full text Add to dashboard Cite

Densely populated areas with large incoming populations have difficulty achieving high separate collection rates of municipal solid waste. The manuscript analyzes the link between biowaste collection and circular economy requirements as a fulfilment of the recycling rates and using biogas as a sustainable energy source. Three biowaste collection scenarios and three technical scenarios for its treatment are considered. The first scenario assumes only composting for biowaste treatment, the next includes also anaerobic digestion. In the years 2020–2050, the separate biowaste collection level will increase, depending on the scenario, from 26.9 kg/inh. up to 148.1kg/inh. By 2030, the quantity of biogas generated from biowaste can grow to almost 9 million m3/year, enabling the production of renewable energy at annual levels of almost 17 GWh and 69 TJ. Using the third scenario, the quantity of biogas generated grows more than twice (in 2035). If the capture rate of biowaste increases from 15% to 20% and then to 25%, the quantity of biogas generated grows by, respectively, 65% and more than 100%. Unfortunately, none of the scenarios enables the required municipal solid waste recycling rates in 2030 (60%) and 2035 (65%), which demonstrates the significant need to develop more effective separate collection systems, including biowaste. Methodology applied in the paper can be used for other cities and regions trying to meet circular economy demands.

show abstract

mentioning

confidence: 99%

The Circular Economy and Organic Fraction of Municipal Solid Waste Recycling Strategies

2020

View full text Add to dashboard Cite

show abstract

“…Nevertheless, biowaste still remains a largely untapped resource globally. In most urban areas, it is still collected while mixed with other MSW types and disposed in landfills and open dumps [2,17]. The current global status of biowaste management highlights the shortcomings of the linear economic model and the largely unexploited potential to close resource loops through biowaste recovery [18].…”

Section: Urban Biowaste Recovery: a Largely Untapped Potentialmentioning

confidence: 99%

“…In contrast, 'centralized systems' consisted of (usually fewer) large-scale facilities located at larger distance from the city. Based on the review material, one example of centralized AD was an urban biowaste large-scale facility 130 km from the city of Brussels that treats food waste with capacity of 50,000 tonnes/year [17]. One example of decentralized AD was a system of 170 small-scale AD sites to treat urban biowaste in the Lyon metropolitan area, each located at a maximum distance of 5 km from waste sources and with capacity of less than 61 tonnes/year [54].…”

Section: Definitions Of Centralized and Decentralized Ad Systemsmentioning

confidence: 99%

“…At times, biowaste subcategories (food and green waste) were collected and treated combined or separately. For example, four papers focused on food waste as key AD feedstock, while [17] found that combined collection of food and green waste, separated from other waste fractions, was the most efficient collection approach for their Brussels case study. The suitable feedstock, as well as the suitable mode of separation and collection, were context-specific for each recovery project, depending on several characteristics of the city studied.…”

Section: Feedstocksmentioning

confidence: 99%

“…In the review material, only three papers addressed urban AD explicitly in the context of circular bioeconomy. Namely, the authors of [17] mentioned the study of bio-based materials deriving from AD as a future research step. The authors of [57] reviewed digestate valorization options, including advanced technologies, to support the development of biorefinery systems.…”

Section: Circular Economy and Bioeconomymentioning

confidence: 99%

See 2 more Smart Citations

The Potential Contribution of Decentralized Anaerobic Digestion towards Urban Biowaste Recovery Systems: A Scoping Review

2021

View full text Add to dashboard Cite

The potential contribution of decentralized approaches in implementing biowaste recovery systems has attracted interest in urban policy making and scientific research. Although the scientific literature on the topic is rapidly increasing, it is still limited and scattered. A comprehensive overview of current scientific knowledge is thus needed to support future research on decentralized options for biowaste recovery systems. Anaerobic digestion (AD) is a mature biowaste treatment technology that recovers energy and nutrients, and can close urban resource loops. Through a scoping literature review, this paper investigated decentralized AD and its potential contribution in implementing urban biowaste recovery systems. We identified opportunities and challenges for planning of decentralized AD, and concluded that these mainly concern: (a) digestate management; (b) the potential for local circularity with product valorization in outlets such as urban agriculture; and (c) the development and application of decision support tools. The findings highlighted the need to enhance scientific evidence on the impact of decentralized AD in different urban contexts. Results from published studies were highly context-specific, making it difficult to draw general conclusions. This study can support the transition to integrated planning of AD and wider urban biowaste recovery systems. Such planning must include a comprehensive analysis of configuration approaches.

show abstract

Microbial Degradation of Biowaste for Hydrogen Production

Asri

Fadlaoui

Ramdani

et al. 2021

Environmental and Microbial Biotechnology

View full text Add to dashboard Cite

Assessing the environmental performance for more local and more circular biowaste management options at city-region level

Cited by 51 publications

References 55 publications

The Circular Economy and Organic Fraction of Municipal Solid Waste Recycling Strategies

The Circular Economy and Organic Fraction of Municipal Solid Waste Recycling Strategies

The Potential Contribution of Decentralized Anaerobic Digestion towards Urban Biowaste Recovery Systems: A Scoping Review

Microbial Degradation of Biowaste for Hydrogen Production

Contact Info

Product

Resources

About