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

Rolewicz-Kalińska, Anna; Lelicińska-Serafin, Krystyna; Manczarski, Piotr

doi:10.3390/en13174366

Cited by 34 publications

(22 citation statements)

References 61 publications

(69 reference statements)

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“…Similar results were reported previously with DOC = 0.08 and Lo at the level of 0.05 compared to 0.018 in this study [43]. The carbon content in the organic fraction of the landfilled waste can be reduced by the application of an additional mechanical treatment prior to a biological treatment process, where 56% reduction in biological activity was observed after 4 weeks of treatment [44,45].…”

Section: Discussionsupporting

confidence: 90%

Emission and Neutralization of Methane from a Municipal Landfill-Parametric Analysis

et al. 2020

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An attempt was made to estimate the annual production of CH4 at a municipal waste landfill site in Poland. As a matter of fact, the extent of the unorganized emission of CH4 from the landfill surface was approached based on the adopted mathematical model. The Ward agglomeration method for cluster analysis and the Pearson coefficient were employed to evaluate the distance-based similarity measure and to optimize methods for estimating methane emissions from a landfill as well as to verify the input parameters for the model. In order to calculate the content of biodegradable organic parts in the waste, morphological tests of the landfilled waste were performed. Physical quantities, measurements and the actual amount of the landfilled waste as well as the volume of CH4 neutralized in a collective flare were implemented in the model, respectively. The model-based findings and experimental outcome demonstrated stable gas production in the landfill with a high CH4 content. On the other hand, a rather low efficiency of the landfill passive degassing installation indicated the necessity to design and develop its active counterpart with the prospective application of the generated biogas for energy production in a cogeneration system.

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Section: Discussionsupporting

confidence: 90%

Emission and Neutralization of Methane from a Municipal Landfill-Parametric Analysis

et al. 2020

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“…The highest values are found in Zone 2, with a SR bw of 8.63% and an NSR bw of 7.14%, followed by Zone 3, with an SR bw of 4.25% and an NSR bw of 3.45%. The literature review and the experiences of other cities with regard to separate collection also indicate that densely populated areas with large incoming populations have difficulty achieving high separate collection rates 20 .…”

Section: Resultsmentioning

confidence: 99%

“…As reported in literature sources creating a circular bioeconomy based on effective use of biomass (including biowaste) is one of the major global concerns. Biomass and biowastes are highly significant in a circular economy in terms of material products and the provision of energy 19 , since biowaste separate collection and its treatment play an important role in meeting the requirements of the circular economy has been confirmed 20 . Biowastes, annually generated at millions of tonnes scale worldwide, must enter a value chain crucial to rethink the planetary welfare in terms of circular economy, where the concept of sustainable growth has to be implemented through a closed loop for the recycling of any material or its transformation into other resources without harming and/or depleting the natural ecosystem 21 .…”

Section: Introductionmentioning

confidence: 99%

Efficiency of a pilot scheme for the separate collection of the biowaste from municipal solid waste in Spain

Gallardo

Mendoza

Carlos-Alberola

et al. 2021

Sci Rep

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According to EU regulations, member states shall take measures to encourage the recycling of biowaste in a way that fulfils a high level of environmental protection. In Spain, the separate collection of biowaste is only implemented in some regions. For this reason, a pilot scheme based on an information campaign and the location of a specific brown container for biowaste in specific zones of the city was carried out in Castelló de la Plana (Spain) over a period of six months. In this period, the collection and composition of the biowaste was monitored in depth with the goal of determining the evolution of the efficiency of the new collection system over time. In the zones, the quality rate in the biowaste container increased as the pilot study progressed, finally reaching 90%. The rate of biowaste separation also increased in the three zones over time, although in different ways, which means that there is greater collaboration on the part of citizens. On the other hand, an analysis of the rate of net biowaste daily collection from zones 2 and 3 has shown that their value increases as the rate of containerization of biowaste decreases. Therefore, to obtain better results it will be necessary to increase the containerization of biowaste, that is, to reduce the distance from the citizen to the container. It can thus be said that there is a positive evolution of the experience, which boosts confidence when it comes to implementing the system throughout the city.

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“…Solid biofuels also have the characteristics of reducing carbon dioxide emissions (Mardoyan et al 2015). Biowaste collection and circular economy are closely related (Rolewicz-Kalińska et al 2020). Meanwhile, fouling deposits on the surface of condensers/heat exchangers have a severe impact on the condenser's ability to condense the exhaust steam, resulting in a significant increase in the amount of fuel consumption, waste energy and CO 2 emissions (Byers et al 2014).…”

Section: Waste Heat and Co 2 Emissionsmentioning

confidence: 99%

Reduction of dust deposition in air-cooled condensers in thermal power plants by Ni–P-based coatings

Zhao

Wang

Xu³

et al. 2021

Clean Techn Environ Policy

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One of the largest problems with most current thermal power plants is the cooling efficiency. This paper aims to massively reduce fuel consumption and heat wasted in thermal power plants and hence CO2 emissions by resolving fouling issues associated with air-cooled condensers. In order to reduce the dust fouling deposition in the air-cooled condensers, the finned flat tubes were coated with nickel−phosphorus and nickel−phosphorus−polytetrafluoroethylene (Ni–P-PTFE) by an electroless coating technology. The anti-fouling performance of the coated tubes was investigated using the field operation parameters of air-cooled condensers, and the influence of the surface energies of the coatings on the dust adhesion was also investigated. The results demonstrated that the Ni–P coated finned tubes performed best, which reduced fouling resistance by 83.3% compared with the untreated finned tubes. The Ni–P coatings have potential applications in thermal power plants for reducing heat exchanger fouling and hence significantly decreasing waste heat and CO2 emissions. Graphic abstract

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

Cited by 34 publications

References 61 publications

Emission and Neutralization of Methane from a Municipal Landfill-Parametric Analysis

Emission and Neutralization of Methane from a Municipal Landfill-Parametric Analysis

Efficiency of a pilot scheme for the separate collection of the biowaste from municipal solid waste in Spain

Reduction of dust deposition in air-cooled condensers in thermal power plants by Ni–P-based coatings

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