LCA of alternative granular materials – Assessment of ecotoxicity and toxicty for road case studies

Jullien, Agnès; Proust, C.; Yazoghli-Marzouk, Oumaya

doi:10.1016/j.conbuildmat.2019.116737

Cited by 6 publications

(3 citation statements)

References 23 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…For both scenarios involving the re-use of cement, TBBPA leachate was modified, according to the experimental results shown by Gómez et al [ 53 ]. For the last scenario, namely the re-use as is in bituminous pavement, substances, such as aluminum, zinc, chlorides, and sulphates, were included, according to Jullien et al [ 77 ], who performed an LCA for the leaching of granular alternative materials used in road construction, including waste, assuming a similar soil and water leachate. Table 6 gives an overview of the considered sensitivity options relative to the corresponding steps of each process.…”

Section: Resultsmentioning

confidence: 99%

Ecotoxicity of Plastics from Informal Waste Electric and Electronic Treatment and Recycling

Butturi

Marinelli

Gamberini

et al. 2020

Toxics

View full text Add to dashboard Cite

Plastic materials account for about 20% of waste electrical and electronic equipment (WEEE). The recycling of this plastic fraction is a complex issue, heavily conditioned by the content of harmful additives, such as brominated flame retardants. Thus, the management and reprocessing of WEEE plastics pose environmental and human health concerns, mainly in developing countries, where informal recycling and disposal are practiced. The objective of this study was twofold. Firstly, it aimed to investigate some of the available options described in the literature for the re-use of WEEE plastic scraps in construction materials, a promising recycling route in the developing countries. Moreover, it presents an evaluation of the impact of these available end-of-life scenarios on the environment by means of the life cycle assessment (LCA) approach. In order to consider worker health and human and ecological risks, the LCA analysis focuses on ecotoxicity more than on climate change. The LCA evaluation confirmed that the plastic re-use in the construction sector has a lower toxicity impact on the environment and human health than common landfilling and incineration practices. It also shows that the unregulated handling and dismantling activities, as well as the re-use practices, contribute significantly to the impact of WEEE plastic treatments.

show abstract

Section: Resultsmentioning

confidence: 99%

Ecotoxicity of Plastics from Informal Waste Electric and Electronic Treatment and Recycling

Butturi

Marinelli

Gamberini

et al. 2020

Toxics

View full text Add to dashboard Cite

show abstract

“…At the same time, and with the aim to objectively evaluate the reduction of environmental impact [ 28 ] and greenhouse gas emissions from the use of waste, a life cycle analysis has been carried out comparing the results of the waste with those of commercial materials with similar characteristics. In other words, the electric arc furnace slag has been evaluated with respect to a similar quality aggregate used for coarse and fine aggregates in bituminous mixtures [ 29 ].…”

Section: Introductionmentioning

confidence: 99%

Determination of the Chemical, Physical and Mechanical Characteristics of Electric Arc Furnace Slags and Environmental Evaluation of the Process for Their Utilization as an Aggregate in Bituminous Mixtures

et al. 2021

View full text Add to dashboard Cite

Road construction is an activity that demands a significant amount of aggregates for bituminous mixtures. In addition, these aggregates must be of a suitable quality for use, even more so on high traffic roads. In response to this problem, and in order to avoid the extraction of new raw materials, research is being carried out using industrial waste as a substitute for conventional aggregates. In this way, the extraction of raw materials is reduced and landfilling of waste is avoided. However, these wastes must have certain properties and environmental advantages over natural aggregates. Otherwise, the use of waste would not be environmentally beneficial but would be more damaging to the environment. For this reason, this research evaluates the viability of using electric arc furnace slag as aggregates for bituminous mixtures, the main objectives being the determination of the characteristics of the by-product, the particularities and the critical points to be taken into account for its subsequent use in mixtures. At the same time, the environmental advantages of treating this waste to obtain a usable aggregate are evaluated in comparison with the processing of a natural aggregate. The results showed that electric arc furnace slags have a suitable chemical composition and excellent physical and mechanical properties for use in bituminous mixtures, even on high traffic roads. At the same time, it was determined that their use produces a considerable reduction in environmental afflictions. Therefore, it could be affirmed that the use of electric arc furnace slags in bituminous mixtures is recommendable as a way to develop more sustainable materials for construction.

show abstract

“…This analysis can be applied to different types of processes such as welding [15], the agricultural process [16], generation systems [17], and the treatment of materials [18], among other processes. An example of the application in LCAs is a study carried out on the use of granular material for road applications, which evaluates the ecotoxicity, the toxicity generated in this process, and quantifies the release of water and its impact on the surrounding environment [19]. Similarly, an LCA was applied to a portable refrigerator, which went from using mains electricity to being a solar-thermal portable refrigerator.…”

Section: Introductionmentioning

confidence: 99%

Combining Energy Management Indicators and Life Cycle Assessment Indicators to Promote Sustainability in a Paper Production Plant

2020

View full text Add to dashboard Cite

This paper presents the application of an energy characterization method based on the ISO 50001 standard in a dry paper production plant. This plant operates using electricity, gas, and coal as energy sources. The last two energy sources are used to produce the steam and hot air used in the paper drying process. Through energy characterization, indicators such as energy baseline and consumption indicators were calculated for the plant, with which improvement opportunities were identified. These improvement opportunities were used as case studies for each energy source used and were based on the actual state of the plant. 2011 Midpoint+ ILCD method data was selected from the Ecoinvent database, using OpenLCA 1.7.0 for the energy assessment. The impact categories analyzed in this study were ecotoxicity, eutrophication of rivers and seas, climate change, and human toxicity. As a result of this work, it was found that energy-saving was possible by adjusting the production rate to a load factor of 77%, which implies a gas consumption of 1.6 kWh/kg and a value in the climate change category of 88.5 kg of CO2 equivalent. In addition, some technological improvement opportunities were economical and environmentally evaluated as a result of the sustainable improvement strategy implemented with energy management and life cycle assessment. The study of these technological opportunities showed that in order to achieve a sustainable industrial process, it is important to take into account energy, economic, and environmental criteria in the continuous improvement of the paper production process. In addition, it is of vital importance to analyze alternatives for technological change, which have a greater impact than operational alternatives according to energy, environmental and economic criteria.

show abstract

LCA of alternative granular materials – Assessment of ecotoxicity and toxicty for road case studies

Cited by 6 publications

References 23 publications

Ecotoxicity of Plastics from Informal Waste Electric and Electronic Treatment and Recycling

Ecotoxicity of Plastics from Informal Waste Electric and Electronic Treatment and Recycling

Determination of the Chemical, Physical and Mechanical Characteristics of Electric Arc Furnace Slags and Environmental Evaluation of the Process for Their Utilization as an Aggregate in Bituminous Mixtures

Combining Energy Management Indicators and Life Cycle Assessment Indicators to Promote Sustainability in a Paper Production Plant

Contact Info

Product

Resources

About