Challenges and perspectives of greenhouse gases emissions from municipal solid waste management in Angola

Maria, Caetano; Góis, José C.; Leitão, Anabela

doi:10.1016/j.egyr.2019.08.074

Cited by 71 publications

(32 citation statements)

References 5 publications

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“…Constraint (8) ensures that all vehicles start from the depot with empty load. Constraint (9) ensures that the load of each vehicle will not exceed its own capacity.…”

Section: Model Settingmentioning

confidence: 99%

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Optimization of a Capacitated Vehicle Routing Problem for Sustainable Municipal Solid Waste Collection Management Using the PSO-TS Algorithm

Qiao

Tao

et al. 2020

IJERPH

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Sustainable management of municipal solid waste (MSW) collection has been of increasing concern in terms of its economic, environmental, and social impacts in recent years. Current literature frequently studies economic and environmental dimensions, but rarely focuses on social aspects, let alone an analysis of the combination of the three abovementioned aspects. This paper considers the three benefits simultaneously, aiming at facilitating decision-making for a comprehensive solution to the capacitated vehicle routing problem in the MSW collection system, where the number and location of vehicles, depots, and disposal facilities are predetermined beforehand. Besides the traditional concerns of economic costs, this paper considers environmental issues correlated to the carbon emissions generated from burning fossil fuels, and evaluates social benefits by penalty costs which are derived from imbalanced trip assignments for disposal facilities. Then, the optimization model is proposed to minimize system costs composed of fixed costs of vehicles, fuel consumption costs, carbon emissions costs, and penalty costs. Two meta-heuristic algorithms, particle swarm optimization (PSO) and tabu search (TS), are adopted for a two-phase algorithm to obtain an efficient solution for the proposed model. A balanced solution is acquired and the results suggest a compromise between economic, environmental, and social benefits.

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“…Constraint (8) ensures that all vehicles start from the depot with empty load. Constraint (9) ensures that the load of each vehicle will not exceed its own capacity.…”

Section: Model Settingmentioning

confidence: 99%

“…Carbon dioxide emissions are the most common assessment criterion of the environmental dimension in MSW collection [8]. Transportation, which is an integral element of the MSW collection process, is a crucial sector of energy consumption and a key driving force of carbon dioxide emissions in China [1,9].…”

Section: Introductionmentioning

confidence: 99%

Optimization of a Capacitated Vehicle Routing Problem for Sustainable Municipal Solid Waste Collection Management Using the PSO-TS Algorithm

Qiao

Tao

et al. 2020

IJERPH

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“…A geração per capita de RSD na Província de Luanda alcançou, em 2012, uma média de 0,65 kg/(habitante.dia), variando de 0,30 kg/(habitante.dia) para os municípios suburbanos, até um máximo de 1,0 kg/(habitante.dia), na cidade de Luanda. Tais resíduos são dispostos, sem qualquer separação, no aterro Mulenvos, o maior do país (Maria et al, 2019).…”

Section: Caracterização Da Região Estudadaunclassified

Identificação das possíveis causas para o elevado índice de pós-obra em uma construtora certificada pela ABNT NBR ISO 9001 e SIAC: Um estudo de caso em obra de Condomínio Horizontal

Dutra¹

2020

Gestão De Resíduos Sólidos – Volume 1

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“…While the energy sector is the largest contributor to CO2 emissions, a signi cant amount of the carbon footprint is originated from urban waste treatment systems, particularly at land ll disposal due to the GHG emissions resulting from the main activities of the land ll during degradation waste processes and the burning of fossil fuels in equipment machinery and so on (3,4). The emission from land ll sites accounts for approximately 5% of the global GHG emissions (5)(6)(7). Now, the Covid-19 pandemic is making the situation worse.…”

Section: Introductionmentioning

confidence: 99%

Can universities be a platform for climate mitigation? Exploring the impacts of carbon pricing in the university setting

Lee

2021

International Journal of Sustainable Development & World Ec

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Climate Change is one of the most important threats in the world today and it is driven by the human-induced build-up of greenhouse gases (GHG) in the atmosphere. Despite worldwide policy efforts from the Kyoto Protocol to the Paris Agreement, global emissions of GHG have continued to steadily increase over the past decade. Against this backdrop, many higher education institutions (HEIs) around the world began to engage in sustainable practices implementing green initiatives on their campuses. Using the waste disposal and the associated GHG emissions data from the academic community, this study describes how HEIs can assume a leadership role in climate mitigation through the implementation of a carbon pricing initiative. Speci cally, this study estimates the economic costs of carbon emissions from waste and conceptualizes how revenues generated from carbon pricing can be rechanneled to support carbon reduction efforts in HEIs. By this approach, HEIs not only create incentives for campus users such as students and employees to choose cleaner options but also be able to understand their own carbon footprint and adjust strategy accordingly. While carbon pricing has long been regarded as an alternative approach to tackle carbon pollution, it has not been much discussed in the area of waste management. In this regard, this study attempted to ll this research gap by nding emission reduction potentials in waste management using carbon pricing as a mechanism. the use of protective gears such as facial masks, gloves, disinfectant wipes, sanitizer bottles, and food packaging have become a norm creating added types of wastes (11-14). Millions of people around the globe are littering those 'COVID-19 items' every day. Disposable plastic items are reintroduced into lives backdating our recycling efforts due to growing concerns of hygiene (15). It poses a new challenge to develop innovative solutions and policies to the added waste concerns, and yet, the volume of single-use products, panic buying packages grow across the globe. 1.1. The United States being the Most Wasteful Country In the World While over two billion tonnes of municipal solid waste are produced every year, the worst offenders are the U.S. citizens producing three times the global average of waste (16,17). While the U.S. accounts for only about four percent of the world's population, it generates 12 percent of the world's municipal solid waste. In comparison, China and India, making up more than 36 percent of the world's population, yet generate about 27 percent of the global waste. The average amount of waste Americans create per day is about 4.9 pounds whereas, in Europe, the average amount weighs in at 2.9 pounds (4,18) When it comes to recycling, the U.S. again lags behind other countries. Despite EPA's recent release about an increase in the average recycling rates to around 32 percent in 2018, this rate is still signi cantly lower than the one of other leading countries like Germany where people recycle around 68 percent of materials (7,16,17,19). This in...

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Challenges and perspectives of greenhouse gases emissions from municipal solid waste management in Angola

Cited by 71 publications

References 5 publications

Optimization of a Capacitated Vehicle Routing Problem for Sustainable Municipal Solid Waste Collection Management Using the PSO-TS Algorithm

Optimization of a Capacitated Vehicle Routing Problem for Sustainable Municipal Solid Waste Collection Management Using the PSO-TS Algorithm

Identificação das possíveis causas para o elevado índice de pós-obra em uma construtora certificada pela ABNT NBR ISO 9001 e SIAC: Um estudo de caso em obra de Condomínio Horizontal

Can universities be a platform for climate mitigation? Exploring the impacts of carbon pricing in the university setting

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