Waste Management at Construction Sites in the Municipality of Manaus, Amazonas, Brazil: Characterization of the Current Situation

Oliveira, Maria do Perpétuo Socorro Lamego; Oliveira, Evailton Arantes de; Freitas, Reginaldo da Rocha; Campos, Arlene Maria Lamêgo da Silva; Fonseca, Ana

doi:10.12944/cwe.14.2.17

Cited by 7 publications

(10 citation statements)

References 16 publications

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“…In the municipality of Manaus, the only available legal solution for CDW disposal is the municipal land ll. However, high deposition costs are applied, and therefore construction companies tend to outsource the transport and disposal of their CDW to private companies operating in this area (Oliveira et al 2019a).…”

Section: Analysis Of the Current Practices For Cdw Management In Manausmentioning

confidence: 99%

“…These construction companies refer very high costs with CDW management -only metal waste is sold for recycling purposes, and the transport and disposal of other produced waste is outsourced to private companies. Wood and paper/cardboard waste, produced in high quantities in these industries and having high reuse and recycling potential, are not being valorised due to the lack of an organized system for waste commercialization (Oliveira et al 2019a).…”

Section: Analysis Of the Current Practices For Cdw Management In Manausmentioning

confidence: 99%

“…The amount of CDW generated and the correspondent management practices differ from country to country, depending on the existing policies, regulations, and waste disposal infrastructures (Blaisi 2019;Li et al 2020b;Lv et al 2020). For example, Singapore reports a 99% recycling rate regarding CDW, while China only recycles 5% of the estimated 2,36 billion tons of CDW produced in a year (Lv et al 2020); in Europe the amount of CDW produced is over 870 million tons per year (Bonoli and Zanni 2021), with recovery rates around 90% (European Commission 2020); the Environmental Protection Agency of the United States of America reports 600 million tons of CDW produced in 2018, 24% of which have their nal disposal in land lls (U.S. EPA 2020); in Brazil the amount of CDW generated in 2019 is estimated as 44,5 million ton (ABRELP 2020), but the recycling practices for CDW in Brazil are scarce (Contreras et As waste material produced in the process of construction, renovation or demolition of structures, CDW mainly consists of concrete, bricks, asphalt, excavated soil, metals, wood, ceramics, plastics, glass and cardboard (Yeheyis et al 2013;Ossa et al 2016;Cai and Waldmann 2019;Oliveira et al 2019a).…”

Section: Introductionmentioning

confidence: 99%

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Development of Strategies to Promote Circular Economy in the Management of Construction and Demolition Waste: A Case Study in Manaus, Brazil

Oliveira

Fonseca

2021

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Construction and Demolition Waste (CDW) cause environmental impacts in a worldwide scale. The existing international concern regarding the adequate management of CDW is justified by the large amount of this waste produced in a daily basis, together with its potential hazardous effects on ecosystems and human health. In countries with growing economies, like Brazil, it is of the utmost importance to promote sustainability-oriented practices that can co-exist with economic development. In this scope, the present research proposes strategies regarding the management of CDW based on the Circular Economy principles, focusing the case study of the municipality of Manaus, in the centre of the Amazon Forest. The characterization of the reference situation regarding CDW management in Manaus revealed several deficiencies, namely the lack of reuse and recycling opportunities, the unsupervised disposal of CDW in illegal landfills, together with insufficient surveillance procedures and inadequate policies from regional authorities like the Manaus City Hall and the Amazon’s Regional Council of Engineering and Agronomy (CREA-AM). The acknowledgement of these problems led to the identification of improvement opportunities and to the development and operationalization of Circular Economy promotion strategies: valorisation of CDW through the enhancement of reuse and recycling opportunities, operationalized through a mobile phone application; inclusion of sensibilization and surveillance practices regarding professional activities related to CDW management on the CREA-AM inspection plan; and the proposal of alterations in the municipal policies regarding CDW disposal in the public landfill. These strategies have been implemented in the Manaus municipality, but are easily adaptable to other Brazilian municipalities and even to other countries’ realities.

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Section: Analysis Of the Current Practices For Cdw Management In Manausmentioning

confidence: 99%

Section: Analysis Of the Current Practices For Cdw Management In Manausmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Development of Strategies to Promote Circular Economy in the Management of Construction and Demolition Waste: A Case Study in Manaus, Brazil

Oliveira

Fonseca

2021

Preprint

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“…In the search for cheaper solutions, it was decided in this research to study the addition of Ca(OH)2 to the pervious concrete during the preparation, because the high porosity of this material facilitates the penetration of external gases of the atmosphere, which catalyze the carbonation in the process for the CO2 sequestration, as the pH within the internal structure (De Oliveira, 2018). Studies for adsorption of CO2 by porous solid materials used techniques for CO2 capture technologies with CaO-based sorbent, applied for high-temperature (Jamrunroj et al, 2019), but it is also a process that uses a lot of energy and is very expensive.…”

Section: Introductionmentioning

confidence: 99%

Environmental Implications of CO2 absorption by pervious concrete pavement in urban roads

Oliveira¹,

Guerreiro²,

Isabeu³

et al. 2019

XIII CTV 2019 Proceedings: XIII International Conference on Virtual Cityand Territory: “Challenges and Paradigms of the Contemp

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This research deals with a new material, made from conventional pervious concrete, but with the addition of two components in its mixture, calcium hydroxide (Ca(OH) 2), to improve its carbon dioxide (CO 2) absorption properties from the atmosphere, and Scrap Tyre Tubes (STT), a rubber waste from used tyres of vehicle (motorcycles and cars), which makes the new material lighter and contributes to urban sustainability by reusing industrial waste automotive. Conventional pervious concrete has a main property that benefits the environment, which is natural from its porous structure, which is the permeability of the urban pavement, which allows the drainage of rainwater from the urban pavement to the underground, contributing to the reduction of flooding in cities through the infiltration of water into the groundwater. This research sought to improve conventional pervious concrete through additives in its mix to create a new porous material, more efficient at sequestering CO 2 from the atmosphere, lighter and reusing rubber waste from used tyres. The porosity of conventional pervious concrete makes this material ideal for carbon dioxide (CO 2) sequestration due to the ease of CO 2 penetration into its internal structure pore network, which interacts with cement and other additives, which by means of a chemical reaction called carbonation, absorbs CO 2 from the atmosphere to form calcium carbonate (CaCO 3) in its internal structure, which is an excellent environmental benefit for the materials used in the manufacture of urban pavements, as it makes the urban pavement contribute directly for air quality and for

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“…These negative impacts are of major importance in sensitive natural environments, justifying the relevance of this research in the city of Manaus, in the central Amazon, Brazil. A previous study involved the quantification of CDW produced at 4 construction sites in the city of Manaus, and the costs involved in its management and disposal (Oliveira et al, 2019). The results showed that high quantities of wood and paper waste are produced, with considerable disposal costs, in spite of the high potential to recycle and re-use these types of waste.…”

Section: Introductionmentioning

confidence: 99%

Smart management of waste from construction sites: mobile application technology in the City Manaus, Amazonas, Brazil

Oliveira¹,

Oliveira²,

Wanderley³

et al. 2019

XIII CTV 2019 Proceedings: XIII International Conference on Virtual Cityand Territory: “Challenges and Paradigms of the Contemp

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This study was carried out in the city of Manaus, Amazonas, Brazil, a municipality surrounded by the Amazon Rainforest. This world heritage site, with a great diversity of fauna and flora, requires the care and attention of both the authorities and the population. The research involved studies on four construction sites to collect data regarding the waste generated and the environmental management practices, especially regarding waste disposal, considering that this item causes major environmental impacts in the Amazon Forest surrounding the city of Manaus. There is only one public landfill, managed by the Municipality of Manaus, and several clandestine landfills, which end up being the final disposal of many construction waste due to lack of inspection and population neglect. The consequences are serious for the Amazon rainforest that suffers the impact of the pollution generated by these residues, such as plastic, paper, metal, and debris which is a major contaminant since it may contain paints, solvents, oils and other materials toxic to nature. Two of the construction sites under study were residential buildings and the other two were thermoelectric power plants (industrial). After data collection through interviews, statistical studies were carried out to analyze and discuss the results obtained, aiming to make the characterization of the current production of construction waste in the city of Manaus, Amazonas, Brazil, and understand how these wastes affect the environment of the Amazon Forest. The collected data enabled the identification of the types of construction waste produced, their respective volumes, and their environmental management practices regarding reuse, sale or disposal. After analyzing the results, it was concluded that the sampled construction companies do not reuse nor recycle construction waste, and discard them in municipal or clandestine landfills. To minimize the identified problem regarding the disposal of construction waste in the city of Manaus, a proposal for the environmental management of construction site waste was developed through mobile application technology, with the aim of mitigating the environmental impacts of these wastes in nature. The mobile application serves as a tool for environmental managers in construction sites, and even for citizens who want to make a renovation in their home and do not know how to allocate the generated construction waste in a responsible and sustainable way. The mobile application was developed on the Android platform and had as premises the main construction waste identified in the construction companies studied in the city of Manaus, which would be plastic, paper, metals, rubble, and demolition remains, such as broken bricks, broken tiles, damaged wood, coatings, paints, mortar and other debris, with potential for contamination and pollution of the environment. The structure of the computer program was developed in order to enable the purchase, sale, exchange, recycling or donation of construction waste through the mobile application itse...

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Waste Management at Construction Sites in the Municipality of Manaus, Amazonas, Brazil: Characterization of the Current Situation

Cited by 7 publications

References 16 publications

Development of Strategies to Promote Circular Economy in the Management of Construction and Demolition Waste: A Case Study in Manaus, Brazil

Development of Strategies to Promote Circular Economy in the Management of Construction and Demolition Waste: A Case Study in Manaus, Brazil

Environmental Implications of CO2 absorption by pervious concrete pavement in urban roads

Smart management of waste from construction sites: mobile application technology in the City Manaus, Amazonas, Brazil

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