scholarly journals Selection of Sites for the Treatment and the Final Disposal of Construction and Demolition Waste, Using Two Approaches: An Analysis for Mexico City

2019 ◽  
Vol 11 (15) ◽  
pp. 4077 ◽  
Author(s):  
Juan Antonio Araiza-Aguilar ◽  
Constantino Gutiérrez-Palacios ◽  
María Neftalí Rojas-Valencia ◽  
Hugo Alejandro Nájera-Aguilar ◽  
Rubén Fernando Gutiérrez-Hernández ◽  
...  
Keyword(s):  
Network Analysis ◽  
Mexico City ◽  
Waste Treatment ◽  
Decision Makers ◽  
Construction And Demolition Waste ◽  
Evaluation Technique ◽  
Demolition Waste ◽  
Final Disposal ◽  
Multi Criteria Evaluation ◽  
Analysis Technique

This paper proposes a solution to the current problems of Mexico City (Ciudad de México) with respect to construction and demolition waste, through a spatial analysis to locate a waste treatment and disposal infrastructure. Two analysis methodologies, specifically the multi-criteria evaluation technique and network analysis, are used with the support of geographic information systems. The results of the multi-criteria evaluation technique indicate that the most suitable places for this infrastructure location are in the south and southeast of the study area, in the Tlalpan, Milpa Alta, Xochimilco and Cuajimalpa boroughs. The results of the network analysis technique indicate that four facilities strategically located in Miguel Hidalgo, Gustavo A. Madero, Tlahuac and Tlalpan boroughs would permit the provision of service to almost all waste generation points in the study area. Decision makers in Mexico City can use either of the two approaches. If the objective is to find the best location of a single place for the treatment or disposal of huge amounts of waste, the results obtained with the multi-criteria evaluation technique should be used. On the other hand, if waste treatment is favored over final disposal, decision makers should use the results of the network analysis technique.

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.

Analysis of incombustibles in the feedstock to incineration facilities in Republic of Korea for optimum sorting and management

2020 ◽  
pp. 0734242X2096268
Author(s):  
Kyuyeon Kim ◽  
Suyoung Lee ◽  
Wonseok Yang ◽  
Gyunggoo Choi ◽  
Wonseok Lee ◽  
...  
Keyword(s):  
Waste Treatment ◽  
Waste Incineration ◽  
Proximate Analysis ◽  
Optimal Operation ◽  
Construction And Demolition Waste ◽  
Republic Of Korea ◽  
Demolition Waste ◽  
Institutional Management ◽  
Treatment Facilities ◽  
To Receive

The Ministry of Environment, Republic of Korea has implemented the “Framework Act on Resource Recirculation” to activate waste resource recovery. However, industrial waste treatment facilities have some problems related to diversity of waste received for proper management of wastes. Waste incineration facilities are required to receive and process combustible waste and are forbidden to re-consign waste to other waste treatment facilities without any processing. In reality, a large quantity of incombustibles is injected into the incinerator because it is impossible to completely separate the incombustible materials. Therefore, it is necessary to develop additional management criteria for optimal operation of the incineration facility. This study was conducted to improve institutional management of incineration facilities in Korea. Through a literature review and statistics study, incombustible waste management trends were investigated. The characteristics of waste entering incineration facilities were surveyed. Physical composition and proximate analysis of incoming waste were conducted, and properties of the incombustibles mixed in feedstock to waste incineration facilities were examined. As a result of this study, incombustibles mainly consisting of the construction and demolition waste, such as soil, glass, and metals should be separated from feed sent to incinerators. A mechanical screening technique that sorts particles of 30–40 mm in size can be used to separate the incombustibles. Also, management criteria could be proposed to sort and re-consign the incombustibles.

Environmental and economic advantages of adopting reverse logistics for recycling construction and demolition waste: A case study of Brazilian construction and recycling companies

2019 ◽  
Vol 37 (2) ◽  
pp. 176-185 ◽  
Author(s):  
Geraldo C Oliveira Neto ◽  
José MF Correia
Keyword(s):  
Environmental Impact ◽  
Solid Waste ◽  
Reverse Logistics ◽  
Waste Treatment ◽  
Economic Assessment ◽  
Construction And Demolition Waste ◽  
Demolition Waste ◽  
Construction Companies ◽  
Solid Waste Treatment

The aim of this study was to assess the economic and environmental advantages of implementing reverse logistics to recycle solid waste from construction companies. The adopted research method was based on a systematic literature review and two case studies. For the economic assessment, the return on investment, the internal rate of return, and the discounted payback factors were considered, while the material intensity factor was used for the environmental impact assessment. This study shows that there are economic and environmental advantages associated with the use of reverse logistics for solid waste treatment and recycling. In 2016, the purchase of recycled blocks resulted in a profit of over US$45,000 for one company, and another company earned almost US$250,000 in the same year by recycling solid waste from manufacturing blocks and selling iron, wood, paper, and plastics. Furthermore, the environmental impact was reduced. This paper contributes to the dissemination of knowledge regarding the advantages of adopting reverse logistics for recycling construction and demolition waste, and creates new opportunities for companies.

Analysis of incombustibles in the feedstock to incineration facilities in South Korea for optimum sorting and management

2020 ◽  
pp. 0734242X2096710
Author(s):  
Kyuyeon Kim ◽  
Suyoung Lee ◽  
Wonseok Yang ◽  
Gyunggoo Choi ◽  
Wonseok Lee ◽  
...  
Keyword(s):  
Industrial Waste ◽  
Waste Treatment ◽  
Waste Incineration ◽  
Proximate Analysis ◽  
Optimal Operation ◽  
Construction And Demolition Waste ◽  
Demolition Waste ◽  
Institutional Management ◽  
Treatment Facilities ◽  
To Receive

Korea’s Ministry of Environment has implemented the Framework Act on Resource Recirculation to activate waste resource recovery. However, industrial waste treatment facilities have some problems related to diversity of waste received for proper management of wastes. Waste incineration facilities are required to receive and process combustible waste and are forbidden to re-consign waste to other waste treatment facilities without any processing. In reality, a large amount of incombustibles is injected into the incinerator because it is impossible to completely separate the incombustible materials. Therefore, it is necessary to develop additional management criteria for optimal operation of the incineration facility. This study was conducted to improve institutional management of incineration facilities in Korea. Through a literature review and statistics study, incombustible waste management trends were investigated. The characteristics of waste entering incineration facilities were surveyed. Physical composition and proximate analysis of incoming waste were conducted, and properties of the incombustibles mixed in feedstocks to waste incineration facilities were examined. As a result of this study, incombustibles mainly consisting of the construction and demolition waste, such as soil, glass, and metals, should be separated from feed sent to incinerators. A mechanical screening technique that sorts particles of 30–40 mm in size can be used to separate the incombustibles. Also, management criteria could be proposed to sort and re-consign the incombustibles.

Status Analysis of Building Construction and Demolition Waste Treatment/Disposal and Management in China

2013 ◽  
Vol 409-410 ◽  
pp. 143-147 ◽  
Author(s):  
Hui Juan Zhang ◽  
Jing Jing Zhang ◽  
Sha Chen
Keyword(s):  
Waste Management ◽  
Large Scale ◽  
Waste Treatment ◽  
Building Construction ◽  
Construction And Demolition Waste ◽  
Sustainable Construction ◽  
Research Trend ◽  
Demolition Waste ◽  
Policy System ◽  
Management Measures

China is experiencing a large scale of building construction, attracting great attention paid to debris generated by frequent construction and demolition activities for its cost inefficiency and environmental pollution. It is of great importance to better understand the magnitude and composition of the waste stream when developing rules, policies and strategies to manage this segment of the solid waste. In this study, after clarifying the definition of construction and demolition (C&D) waste according to its complex composition and diverse sources, approaches quantifying C&D waste to meet different requirements were summarized, and a simple weight-per-construction-area was employed to make an approximate estimation. Based on the main causes and status quo of C&D waste management, measures to reduce C&D waste were proposed to realize a sustainable construction industry, which include improving environmental awareness, strengthening the establishment of policy system and company waste management system, and reinforcing research and study work. This study also adds to the knowledge on research trend of C&D waste in China.

scholarly journals The Production of Sustainable Concrete with the Use of Alternative Aggregates: A Review

2020 ◽  
Vol 12 (19) ◽  
pp. 7903
Author(s):  
Maria Cristina Collivignarelli ◽  
Giacomo Cillari ◽  
Paola Ricciardi ◽  
Marco Carnevale Miino ◽  
Vincenzo Torretta ◽  
...  
Keyword(s):  
Alternative Fuels ◽  
Waste Treatment ◽  
Mechanical Performance ◽  
Raw Materials ◽  
Metallurgical Industry ◽  
Construction And Demolition Waste ◽  
Demolition Waste ◽  
Core Element ◽  
Complete Replacement ◽  
Coarse Aggregates

The concrete industry is a core element of the building sector, but it has to deal with the increasing attention on the environmental issues related to the production process: increasing energy efficiency and the adoption of alternative fuels or raw materials represent the most relevant solutions. The present work analyses physical, mechanical, and environmental performances of concrete incorporating residues derived from four main sources (construction and demolition waste, residues from waste treatment, metallurgical industry by-products, and others), as substitutes of either fine or coarse aggregates. Fine aggregates showed the highest number of alternatives and replacement level, with the relevant impact on concrete properties; coarse aggregates, however, always reach a complete replacement, with the exclusion of glass that highly affects the mechanical performance. Construction and metallurgical industry categories are the main sources of alternative materials for both the components, with ceramic and lead slag reaching a full replacement for fine and coarse aggregates.

scholarly journals First results of Technosols constructed from municipal waste in Vitoria-Gasteiz (Spain)

2016 ◽  
Vol 6 ◽  
Author(s):  
Álvaro Herrán Fernández ◽  
Rafael G. Lacalle ◽  
María Jesús Iturritxa Vélez del Burgo ◽  
Mikel Martínez Azkuenaga ◽  
Juan Vilela Lozano
Keyword(s):  
Green Infrastructure ◽  
Waste Treatment ◽  
Monitoring Program ◽  
Size Fraction ◽  
Treatment Plant ◽  
Municipal Waste ◽  
Construction And Demolition Waste ◽  
Demolition Waste ◽  
Public Park ◽  
Waste Treatment Plant

Construction of Technosols offers interesting alternatives to two current problems in the city of Vitoria-Gasteiz (Spain): waste recycling and degraded plot recovery. To evaluate the viability of their use, 6 types of Technosols were created by mixing four different byproducts from municipal waste treatment plants. The less than 40 mm size fraction material from the municipal construction and demolition waste treatment plant was used as the main ingredient, bio-stabilized material from the solid urban waste treatment plant mixed with triturated pruning was used as organic matter input, recycled bentonites and topsoil from the public plots of Vitoria-Gasteiz (Spain) completed the mixture. Mixes were prepared in triplicate and installed in 48 m<sup>2</sup> cells along with another 4 control cells containing only one of the ingredients at the municipal landfill of Gardelegui. A monitoring program for different parameters on soil, eluates and natural leachates was established to test the Technosols’ capacity to sustain vegetation without negative impacts on the environment. The final objective is to test their ability to restore unused municipal plots. Results from the first year show that Technosols are a suitable option for degraded sites restoration and green infrastructure support. All controlled parameters on soil are within the limits set by autonomic legislation for land use as public park. The eluate analysis concludes for all studied parameters that all mixes would be classified by legislation as inert waste, except for the sulphate concentration (which exceeds the inert waste limit of 1 000 ppm), that currently would label the soil as non-hazardous. In the natural leachate analysis strongly basic pH values were present above 9.5, the limit allowed in Royal Decreet 849/1986, but acidified throughout the year moving towards neutrality, with final values between 7.31 and 7.51. Leachate from CDW30, TS15 and RB30 Technosols showed not allowed values with respect to sulfates and Fe during the last sampling, surpassing the limits of 2 mg/l and 2000 mg/l respectively. All studied Technosols presented a low ecological potential risk (RI &lt; 150) for heavy metals in soil and eluates.

Life Cycle GHG Assessment of Mixed Construction and Demolition Waste Treatment for End of Life Recovery Facility Design: A Sydney, Australia Case Study

2020 ◽  
Author(s):  
Tahli Moore ◽  
Hao Zhang
Keyword(s):  
Life Cycle ◽  
Industrial Waste ◽  
Waste Treatment ◽  
New South ◽  
Ghg Emissions ◽  
Construction And Demolition Waste ◽  
Demolition Waste ◽  
South Wales ◽  
Sydney Australia

Abstract Historically in Australia, mixed Construction and Demolition waste, and Commercial and Industrial waste has been traditionally landfilled. As environmental impacts of landfilling is becoming more evident New South Wales policy makers and innovators have begun exploring an incineration strategy to use such waste to generate electricity. The objective of this study is to utilise life cycle assessment to evaluate GHG emissions from this waste treatment strategy and the environmental impact of a case study facility, in Sydney Australia. The system boundary includes the thermal treatment of waste through incineration, the electricity generation from the steam turbine and air pollution control processes involved within. The functional unit is based on 1 tonne of input mixed Construction and Demolition waste and Commercial and Industrial waste. GHG emissions are calculated and the result shows that the facility generates 0.994 MWh/tonne waste and 1.16 tCO2e/MWh electricity. This emission is lower than a brown coal fired powerplant emission factor 1.31 tCO2e/MWh. The results from this study assists understanding and policy making for the future of Energy-from-Waste as part of the generation mix in New South Wales, Australia.

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