Comparação de cenários de tratamento de resíduos sólidos urbanos por meio da técnica da Avaliação do Ciclo de Vida: o caso do município de Garibaldi, RS

Mersoni, Cristina; Reichert, Geraldo Antônio

doi:10.1590/s1413-41522017150351

Cited by 23 publications

(20 citation statements)

References 8 publications

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“…The case study presented in this article corroborates the authors of the researched bibliography, in the sense of considering other MSW treatments before the nal disposal, as a sustainable strategy for municipal management, aiming at lower environmental impacts(Mersoni and Reichert 2017; Marchi 2015; Jacobi and Besen 2011; Wartchow et al 2011; Pandyaswargo and Premakumara 2014). "The present work reinforces the recommendations ofMersoni and Reichert (2017) andMarchi (2015), by suggesting that managers take into account environmental and social factors when making decisions about the MSW management model to be implemented in the municipalities, and highlighting that the problem of waste does not seem to be solved by just disposing of it inexpensive land lls.In this sense, it is emphasized that the technological simplicity of the proposed composting model for the case study in Paraíba do Sul (UFSC Method) contributes to success in the local context -which can be replicated in several small Brazilian cities. This idea was worked on both byMarchi (2015) when commenting on the abandonment of land lls due to lack of technical capacity and nancial resources, and by Jacobi and Besen (2011), who highlight the need for commitment by city halls and the technological adequacy of management solutions of MSW.Also in terms of the operating costs of the composting units, it is interesting to keep it simple, as in the proposed case study.…”

supporting

confidence: 80%

A Comparative Study for Two Solid Waste Management Scenarios Based on Economic Cost and Sustainability Indicators

Vazquez

Souza

Najjar

et al. 2021

Preprint

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This work presents the results of a comparative evaluation of two possible scenarios for Municipal Solid Waste (MSW) Management in Paraíba do Sul city - RJ - Brazil, using economic cost and sustainability indicators. The novelty of this work is in validating by means of cost and sustainability indicators the MSW management proposal that use of the organic fraction of waste in a local composting process. The first scenario, Simulated Scenario 1, which is currently being assessed by municipal management is: sending all MSW collected in the city to the new private landfill. The second scenario, Simulated Scenario 2, is a novel model proposed in this work, which involves the shipment of organic waste to a composting yard. The scenarios are examined on a case study composed of ten neighborhoods from the municipal core. The results obtained reveal a difference of less than R$ 10,000.00 per month between the total estimated costs for each scenario, with the second simulation being the most expensive. For the second scenario, there is the possibility of generating income through the sale of the compost, which could cover the excess cost. Insights from the score of the sustainability indicators show that the second scenario is the best from the environmental point of view. The technological simplicity and the low economic cost of the indicated method for composting are highlighted, as well as the existence of selective collection and the use of organic waste as the main advantages of Simulated Scenario 2.

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supporting

confidence: 80%

A Comparative Study for Two Solid Waste Management Scenarios Based on Economic Cost and Sustainability Indicators

Vazquez

Souza

Najjar

et al. 2021

Preprint

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“…No entanto, antes de se proporem e implementarem mudanças no sistema de gestão de resíduos sólidos (RS), Chang e Pires (2015) sugerem a utilização de algum método de apoio à decisão. Na literatura, é possível levantar diversos estudos que utilizam métodos desse tipo no planejamento de sistemas de gestão de resíduos, de forma a avaliar e comparar diferentes alternativas (MERSONI; REICHERT, 2017;MENDES, 2014;SOLTANI et al, 2015;YAP;NIXON, 2015). A seleção de alternativas de tratamento de resíduos é um processo complexo, em que se devem considerar diferentes critérios de avaliação, como o social, o ambiental e o econômico (QAZI; ABUSHAMMALA; AZAM, 2018).…”

Section: Introductionunclassified

Uma análise multicritério de alternativas para o tratamento de resíduos sólidos urbanos do município de Juazeiro do Norte no Ceará

Müller

Arruda

Alcantara

et al. 2021

Eng. Sanit. Ambient.

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RESUMO Gestores públicos necessitam planejar e implementar alternativas sustentáveis de gestão de Resíduos Sólidos Urbanos (RSU) que contenham unidades de tratamento de resíduos. Entretanto, a seleção de alternativas de tratamento de resíduos é um processo complexo, sendo necessário considerar diferentes critérios. Nesse sentido, este artigo tem o objetivo de analisar diferentes alternativas de tratamento de RSU para o município de Juazeiro do Norte no Ceará, Brasil, por meio da avaliação dos critérios econômico, ambiental, social, técnico e regulatório. Para alcançar esse objetivo, aplicou-se o método multicritério de apoio à decisão Analytic Hierarchy Process (AHP), com o auxílio de diversas técnicas quantitativas de projeção e de dados coletados em campo e em fontes secundárias. Os resultados mostram que as alternativas 1 (centro de triagem manual e unidade de compostagem descentralizados) e 3 (centro de triagem manual e biodigestor descentralizados) são as opções de tratamento de RSU mais favoráveis para o município, com percentual de 25,11 e 24,97%, respectivamente. As alternativas descentralizadas (1 e 3) levam vantagem sobre as centralizadas 2 (centro de triagem automatizado e unidade centralizada de compostagem), 4 (centro de triagem automatizado e biodigestor centralizado) e 5 (centro de triagem automatizado e incinerador) em virtude, principalmente, da maior geração de empregos e viabilidade técnica. Entretanto, com a realização da análise de sensibilidade em uma avaliação na qual o critério econômico tinha peso superior ou igual a 70%, constatou-se que o resultado geral mudaria e as alternativas centralizadas 2 e 4, com melhores resultados econômicos, seriam apontadas como as melhores opções.

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“…There is a direct relationship between the ratio of hydrogen to carbon and the concentration of soot. The higher the H/C ratio, the higher the concentration of soot particles [1][2][3][4].…”

Section: Introductionmentioning

confidence: 99%

Formation of soot in the disposal of municipal solid waste

Барышева

Mokhova

2021

E3S Web Conf.

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In power plants intended for the disposal of solid household waste, the processes take place at a high temperature. For such installations, nonequilibrium processes are characteristic of a change in the composition of combustion products caused by the final rates of the ongoing chemical reactions. This affects the basic characteristics of the combustion process of municipal solid waste. A mathematical model has been created for calculating the chemically nonequilibrium composition of the fuel. Solid household and industrial waste is a high-energy fuel. It is a high energy fuel. The process of thermal neutralization of solid household waste is considered. An alternative calculation method is presented that allows one to find the composition of combustion products under conditions of nonequilibrium in the process of thermal utilization of solid domestic waste. The data on the composition and properties of solid household waste obtained by the developed method of calculation allow predicting the yield of super Eco toxicants in combustion products. On the basis of the equations of formal chemical kinetics, an alternative was created, which consists in determining the composition of combustion products taking into account the kinetics of chemical reactions. The assumption is introduced that transformations in the gas phase are elementary, one-stage. Various chemical interactions can be represented by a set of elementary stages. The most probable are mono-, biand three molecular chemical reactions. The method allows predicting the yield of Eco toxicants by finding the composition of the fuel combustion products prior to its utilization.

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Comparação de cenários de tratamento de resíduos sólidos urbanos por meio da técnica da Avaliação do Ciclo de Vida: o caso do município de Garibaldi, RS

Cited by 23 publications

References 8 publications

A Comparative Study for Two Solid Waste Management Scenarios Based on Economic Cost and Sustainability Indicators

A Comparative Study for Two Solid Waste Management Scenarios Based on Economic Cost and Sustainability Indicators

Uma análise multicritério de alternativas para o tratamento de resíduos sólidos urbanos do município de Juazeiro do Norte no Ceará

Formation of soot in the disposal of municipal solid waste

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