Strategies to promote circular economy in the management of construction and demolition waste at the regional level: a case study in Manaus, Brazil

2021 ◽  
Author(s):  
Maria do Perpétuo Socorro Lamego Oliveira ◽  
Evailton Arantes de Oliveira ◽  
Ana Margarida Fonseca
Keyword(s):  
Circular Economy ◽  
Regional Level ◽  
Construction And Demolition Waste ◽  
Demolition Waste

The Traceability of Construction and Demolition Waste in Flanders via Blockchain Technology: A Match Made in Heaven?

2021 ◽  
Vol 18 (4) ◽  
pp. 347-369
Author(s):  
Jonas Voorter ◽  
Christof Koolen
Keyword(s):  
Circular Economy ◽  
Construction And Demolition Waste ◽  
Waste Processing ◽  
Construction Sector ◽  
Sustainable Society ◽  
Demolition Waste ◽  
Blockchain Technology ◽  
Legal Case ◽  
Made In

Abstract The construction sector plays a crucial role in the transition to a circular economy and a more sustainable society. With this objective in mind, Flanders – the Dutch speaking part of Belgium – makes use of a traceability procedure for construction and demolition waste in order to guarantee that value can be derived from downstream waste processing activities. This article takes this traceability procedure as a legal case study and examines if the use of blockchain technology could lead to even stronger supply chains, better data management, and, more generally, a smoother transition to circular practices in the construction sector.

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

2021 ◽  
Author(s):  
Maria do Perpétuo Socorro Lamego Oliveira ◽  
Evailton Arantes de Oliveira ◽  
Ana Fonseca
Keyword(s):  
Circular Economy ◽  
Daily Basis ◽  
Construction And Demolition Waste ◽  
Amazon Forest ◽  
Demolition Waste ◽  
Mobile Phone Application ◽  
Professional Activities ◽  
Municipal Policies ◽  
Regional Authorities

Abstract 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.

scholarly journals in Construction from Waste to in Israel: A Case Study

2021 ◽  
pp. 323-340
Author(s):  
Zvi Weinstein
Keyword(s):  
National Economy ◽  
Circular Economy ◽  
Legal Framework ◽  
Construction And Demolition Waste ◽  
Demolition Waste ◽  
Economic Interests ◽  
Local Municipalities ◽  
The One ◽  
State Of Israel

AbstractThe chapter describes a policy of the State of Israel with the aim to cope with construction and demolition waste (CDW) through recycling, to be further used as green products. It is aimed at supporting the national economy and the recovery of the open public spaces that became places for illegal landfills, impacting the natural environment. Two major tools are used to achieve these aims: the first is the circular economy (CE), instrumentally led by the Ministry of Economy, and the second is the regulatory framework led by the Ministry of Environmental Protection. Both have the capacities to cope with, and support, the national economy and the environment. We argue that the way to achieve the full integration between the circular economy and the legal framework has still a wide gap, although big changes and advancements have been made towards reaching a comprehensive policy. Both Ministries are aware that it is a long process to achieve real changes after many years of environmental neglect due mainly to conflictual politics, economic interests, lack of budget and other government priorities. The means to achieve that goal include the use of the circular economy principles for recycling CDW into green and reusable products, on the one hand, and empowering the responsibility and accountability of local municipalities through regulation, on the other.

scholarly journals From Buildings’ End of Life to Aggregate Recycling under a Circular Economic Perspective: A Comparative Life Cycle Assessment Case Study

2021 ◽  
Vol 13 (17) ◽  
pp. 9625
Author(s):  
Ambroise Lachat ◽  
Konstantinos Mantalovas ◽  
Tiffany Desbois ◽  
Oumaya Yazoghli-Marzouk ◽  
Anne-Sophie Colas ◽  
...  
Keyword(s):  
Life Cycle Assessment ◽  
Life Cycle ◽  
End Of Life ◽  
Environmental Impacts ◽  
Open Loop ◽  
Decision Makers ◽  
Construction And Demolition Waste ◽  
Recycled Aggregates ◽  
Demolition Waste

The demolition of buildings, apart from being energy intensive and disruptive, inevitably produces construction and demolition waste (C&Dw). Unfortunately, even today, the majority of this waste ends up underexploited and not considered as valuable resources to be re-circulated into a closed/open loop process under the umbrella of circular economy (CE). Considering the amount of virgin aggregates needed in civil engineering applications, C&Dw can act as sustainable catalyst towards the preservation of natural resources and the shift towards a CE. This study completes current research by presenting a life cycle inventory compilation and life cycle assessment case study of two buildings in France. The quantification of the end-of-life environmental impacts of the two buildings and subsequently the environmental impacts of recycled aggregates production from C&Dw was realized using the framework of life cycle assessment (LCA). The results indicate that the transport of waste, its treatment, and especially asbestos’ treatment are the most impactful phases. For example, in the case study of the first building, transport and treatment of waste reached 35% of the total impact for global warming. Careful, proactive, and strategic treatment, geolocation, and transport planning is recommended for the involved stakeholders and decision makers in order to ensure minimal sustainability implications during the implementation of CE approaches for C&Dw.

scholarly journals Circular Economy on Construction and Demolition Waste: A Literature Review on Material Recovery and Production

Materials ◽  
2020 ◽  
Vol 13 (13) ◽  
pp. 2970 ◽  
Author(s):  
Clarence P. Ginga ◽  
Jason Maximino C. Ongpeng ◽  
Ma. Klarissa M. Daly
Keyword(s):  
Literature Review ◽  
Circular Economy ◽  
Business Models ◽  
Latent Dirichlet Allocation ◽  
Traditional Approach ◽  
Construction And Demolition Waste ◽  
The European Union ◽  
Demolition Waste ◽  
Material Recovery ◽  
New Construction

Construction and demolition waste (CDW) accounts for at least 30% of the total solid waste produced around the world. At around 924 million tons in the European Union in 2016 and 2.36 billion tons in China in 2018, the amount is expected to increase over the next few years. Dumping these wastes in sanitary landfills has always been the traditional approach to waste management but this will not be feasible in the years to come. To significantly reduce or eliminate the amount of CDW being dumped, circular economy is a possible solution to the increasing amounts of CDW. Circular economy is an economic system based on business models which replaces the end-of-life concept with reducing, reusing, recycling, and recovering materials. This paper discusses circular economy (CE) frameworks—specifically material recovery and production highlighting the reuse and recycling of CDW and reprocessing into new construction applications. Likewise, a literature review into recent studies of reuse and recycling of CDW and its feasibility is also discussed to possibly prove the effectivity of CE in reducing CDW. Findings such as effectivity of recycling CDW into new construction applications and its limitations in effective usage are discussed and research gaps such as reuse of construction materials are also undertaken. CE and recycling were also found to be emerging topics. Observed trends in published articles as well as the use of latent Dirichlet allocation in creating topic models have shown a rising awareness and increasing research in CE which focuses on recycling and reusing CDW.

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