Athens-Biowaste Model: Cost and Carbon Footprint Calculation of the Collection at Source and Treatment of Biowaste

Bourka, A.; Malamis, Dimitris; Venetis, Christos; Μουστάκας, Κωνσταντίνος; Konstantzos, Giorgos E.; Skiadi, O.; Loizidou, Maria

doi:10.1007/s12649-015-9399-7

Cited by 7 publications

(3 citation statements)

References 8 publications

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“…Implementation of separate collection of biowaste is generally seen as more expensive by local authorities and therefore disregarded as a viable option. A recent study in Greece shows that the operational costs with biowaste collection is higher for door-todoor than for road containers, as it requires additional routes for serving a specific area [6]. In city centers the spatial density of biowaste producers such as restaurants and canteens is higher, rendering collection more cost effective.…”

Section: Introductionmentioning

confidence: 99%

Door-to-Door Collection of Food and Kitchen Waste in City Centers Under the Framework of Multimunicipal Waste Management Systems in Portugal: The Case Study of Aveiro

Rodrigues

Oliveira

Lopes

et al. 2015

Waste Biomass Valor

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Separate collection of biowaste represents inPortugal only 2 % of total collected biowaste. Even though higher quality compost can be obtained through the separate collection of biowaste, this is generally regarded as more expensive and discarded as an option. In this work we assessed the viability of implementing the separate collection of biowaste targeting restaurants and canteens in city centers, using Aveiro as a case study. The current situation (no separate collection for biowaste) was compared with an alternative scenario in which biowaste was separately collected and valorized. The costs, constrains and the producers' attitude towards such a collection scheme are presented and discussed. On average 0.46 kg of biowaste were produced per meal served. The acceptance of separate biowaste collection was high (67 %) among producers, and it could be increased further through informative campaigns and economic incentives such as payas-you-throw tariffs. Door-to-door collection of biowaste could reduce the cost per ton as much as 37 %, when compared to collection as unsorted waste. The major constrains for the implementation of separate collection of biowaste were the selection of alternative legal destinations to the MBT unit (which has the exclusivity to treat collected waste) and the lack of dedicated infrastructures at multimunicipal waste management facilities to handle separately collected biowaste.

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Section: Introductionmentioning

confidence: 99%

Door-to-Door Collection of Food and Kitchen Waste in City Centers Under the Framework of Multimunicipal Waste Management Systems in Portugal: The Case Study of Aveiro

Rodrigues

Oliveira

Lopes

et al. 2015

Waste Biomass Valor

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“…Nesse sentido, a frequência de coleta é considerada adequada de acordo com o Instituto Brasileiro da Administração Municipal-IBAM ( 2001) que afirma que o tempo decorrido entre a geração do resíduo domiciliar e seu destino final não deve exceder uma semana para evitar proliferação de maus odores e vetores. A frequência de coleta é considerada um fator crítico no gerenciamento de RSU, com prioridade, especialmente, devido a presença da fração orgânica, que está associada à proliferação de vetores de doenças nos períodos chuvosos e em regiões com clima tropical, por ocasião de demora de recolhimento do lixo (Bourka et al, 2015;Cetrulo et al, 2018).…”

Section: Frequência Da Coletaunclassified

Caracterização Gravimétrica de Resíduos Sólidos Urbanos da Cidade de Ereré/CE

Júnior

Bezerra

Costa

et al. 2021

Rev. Bras. Geog. Fis.

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Os Resíduos Sólidos Urbanos (RSU) são um dos grandes problemas socioambientais da atualidade, em muitos casos, devido ao gerenciamento inadequado ou ineficiente nas etapas de coleta, transporte, destinação e disposição final, além das limitações quanto a promoção da educação ambiental. Diante disso, se faz necessária uma análise mais detalhada acerca da dinâmica de descarte destes resíduos para a adoção de metodologias que visem melhorar a qualidade no serviço deste eixo do saneamento. Desta forma, o objetivo desta pesquisa foi realizar a composição gravimétrica dos resíduos sólidos urbanos da cidade de Ereré/CE, por meio da análise quali-quantitativa desses materiais, no intuito de configurar os tipos e a quantidade de RSU gerado. O município de Ereré situado no estado do Ceará possui como dispositivo final de acomodação de seus RSU um aterro comum (vazadouro a céu aberto). Para tanto, se utilizou da metodologia de amostragem no local de descarte final, empregando a técnica de quarteamento na obtenção de massa específica. Os dados coletados foram analisados e tratados em planilha do software Microsoft Office Excel ®. Observou-se que a disposição de rejeitos é predominante, totalizando 28,23 % da amostra, seguida de matéria orgânica (20,75 %) e plásticos (19,04%). Além disso, os dados obtidos mediante cálculos matemáticos indicaram que a geração per capita é de 0,800 kg/hab.dia. Esses valores refletem na dinâmica de consumo de produtos e descarte de inservíveis presentes no município. Além disso, os dados obtidos foram de fundamental importância para se estabelecer métodos de otimização no gerenciamento de resíduos e para a promoção da educação ambiental. Gravimetric Characterization of Urban Solid Waste in the City of Ereré/CE A B S T R A C TUrban Solid Waste (USW) is one of the major social and environmental problems of the present time, in many cases, due to inadequate or inefficient management in the stages of collection, transport, destination and final disposal, in addition to environmental education. At that, a more detailed analysis about the dynamics of disposing of these residues is required for the adoption of methodologies that aim at improving the quality of service in this area of sanitation. The aim of this research was to perform the gravimetric composition of urban solid waste in the city of Ereré- CE, based on a qualitative and quantitative analysis of these materials, in order to configure the types and quantity of USW. The municipality of Ereré, located in the state of Ceará, has a standard landfill (open-pit dumping ground) as the end-unit for accommodating its USW. For this purpose, it was applied the sampling methodology at the local of final disposal, using the quartering technique to get a specific mass. The collected data were analyzed and processed in a Microsoft Office Excel ® spreadsheet. It was found that the waste disposal is prevalent, amounting 28.23% of the whole sample, followed by organic matter (20.75%) and plastics (19.04%). Moreover, mathematical calculations indicated that the per capita generation is 0.800 kg/hab/day. These values reflect the dynamics of product consumption and discarding of unusable materials present in the municipality. Furthermore, the data obtained were crucially important for establishing optimization methods in waste management and for the promotion of environmental education.Keywords: Gravimetry. Quartering. Solid waste.

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“…This scenario is an interesting one for the case of developing countries that still utilize landfilling as a primer waste management strategy. Bourka et al (2015) mentioned the case of anaerobic digestion, which-except from the production of biogas-produces the additional stream of digestate/compost, and thus it is a strategy with increased complexity [10]. In this case, the nature of the waste should be taken into consideration; in anaerobic digestion, the feedstock is primarily bio-waste that are usually separated at source.…”

Section: Introductionmentioning

confidence: 99%

Applications of the 3T Method and the R1 Formula as Efficiency Assessment Tools for Comparing Waste-to-Energy and Landfilling

Vakalis

Μουστάκας

2019

Energies

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The assessment of novel waste-to-energy technologies has several drawbacks due to the nature of the R1 formula. The 3T method, which aims to cover this gap, combines thermodynamic parameters in a radar graph and the overall efficiency is calculated from the area of the trapezoid. The present study expands the application of the 3T method in order to make it suitable for utilization in other energy-from-waste technologies. In the framework of this study, a 3T specialized solution is developed for the case of landfilling plus landfill gas recovery, with the potential inclusion of landfill mining. Numerical applications have been performed for waste-to-energy and landfilling by using both the R1 formula and the 3T method. The model Land GEM was used for the calculation of the total landfill gas. The Combined Heat and Power (CHP) efficiency of the landfill gas CHP efficiency was 16.6%–33.1%, and for the waste-to-energy plant, the CHP efficiency was over 70%. The full range of parameters, like metal recovery and quality of CHP, were not fully reflected by the R1 formula, which returned values of 1.07 for waste-to-energy and from 0.37 to 0.63 for different landfilling scenarios. Contrary to that, the 3T method calculated values between 0.091 and 0.307 for the waste-to-energy plant and values between 0.011 and 0.121 for the various landfilling scenarios. The 3T method is able to account for the recovery of materials like metals and assess the quality of the output flows. The 3T method was able to successfully provide a solution for the case of landfilling plus landfill gas recovery, with the potential inclusion of landfill mining, and directly compares the results with the conventional case of waste-to-energy.

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Athens-Biowaste Model: Cost and Carbon Footprint Calculation of the Collection at Source and Treatment of Biowaste

Cited by 7 publications

References 8 publications

Door-to-Door Collection of Food and Kitchen Waste in City Centers Under the Framework of Multimunicipal Waste Management Systems in Portugal: The Case Study of Aveiro

Door-to-Door Collection of Food and Kitchen Waste in City Centers Under the Framework of Multimunicipal Waste Management Systems in Portugal: The Case Study of Aveiro

Caracterização Gravimétrica de Resíduos Sólidos Urbanos da Cidade de Ereré/CE

Applications of the 3T Method and the R1 Formula as Efficiency Assessment Tools for Comparing Waste-to-Energy and Landfilling

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