On the ASR and ASR thermal residues characterization of full scale treatment plant

Mancini, Giuseppe; Viotti, Paolo; Luciano, Antonella; Fino, Debora

doi:10.1016/j.wasman.2013.11.002

Cited by 39 publications

(29 citation statements)

References 34 publications

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“…Due to high polymer content, ASR has an average lower heat value of about 20 MJ/kg [10], therefore thermal recovery processes are widely used for their energetic recovery, such as incineration, pyrolosis, and gasification. Thermal processes convert organic materials of ASR into energy or fuels but concentrate chlorine, heavy metals, and toxins present in ARS, in the ash residues [10][11][12], which leads to environmental risks.…”

Section: Introductionmentioning

confidence: 99%

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Feasibility Study of Sensor Aided Impact Acoustic Sorting of Plastic Materials from End-of-Life Vehicles (ELVs)

2015

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Abstract:The purpose of this feasibility research was to study a novel sensor based separation method for recycling of plastic materials from end-of-life vehicles (ELVs) by using eigen-frequency response of impact acoustic emission. In this research three kinds of commonly used plastics, polypropylene (PP), acrylonitrile-butadiene-styrene (ABS), and styrene-maleic-anhydride (SMA) sampled from end-of-life vehicles, were researched. Almost all the crushed plastic scraps had a flake structure, theoretically their impact response behaviors were determined by their diameters and thicknesses. The equivalent diameters of the scraps were characterized by fine sieving and their thicknesses were measured online by a 3D laser triangulation sensor above the conveying path. Following this the scraps were free dropped one-by-one to impact with an impact passive body on which impact acoustic emission (AE) signals were generated and acquired by an acoustic pickup sensor. Thirdly, the AE signals which carried eigen-frequency response features were processed and characterized. Results demonstrated that the scraps with diameters < 8 mm were too weak for the actual devices to process; the scraps with diameter from 8-13 mm still generated quite a lot of AE signals of inadequate intensity. Finally the general characterization and recognition yields were 64.6%, 61.7%, and 63.9% of PP, ABS, and SMA in mass, respectively of tested materials. OPEN ACCESSAppl. Sci. 2015, 5 1700

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Section: Introductionmentioning

confidence: 99%

“…Thermal processes convert organic materials of ASR into energy or fuels but concentrate chlorine, heavy metals, and toxins present in ARS, in the ash residues [10][11][12], which leads to environmental risks. Moreover, the increasingly strict regulations concerning gaseous emissions also limits the thermal processes [12].…”

Section: Introductionmentioning

confidence: 99%

Feasibility Study of Sensor Aided Impact Acoustic Sorting of Plastic Materials from End-of-Life Vehicles (ELVs)

2015

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“…Owing to its high heterogeneity and variable composition of hazardous substances, such as heavy metals, polychlorinated biphenyls (PCBs), brominated flame retardants (BFRs) and other persistent organic pollutants (POPs), ASR can be classified as hazardous waste [1,[5][6][7]. According to the U.S. Environmental Protection Agency, approximately one million tons of ASR could be recovered for fuel by thermal process [8].…”

Section: Introductionmentioning

confidence: 99%

“…However, ASR thermal process removes some of the organic material but concentrates the heavy metals and POPs present in the ASR, by a factor of up to 20, in the ash residues [10]. As a consequence, the amount of heavy metals and POPs in the residues obtained from the ASR thermal processes can be remarkably high as compared to bottom and fly ash generated from common municipal solid waste incinerator (MSWI) [6,9,10]. ASR residues such as slag, bottom ash, fly ash and ASR dust represented approximately 25% of the initial ASR by weight.…”

Section: Introductionmentioning

confidence: 99%

“…ASR residues such as slag, bottom ash, fly ash and ASR dust represented approximately 25% of the initial ASR by weight. A recent study revealed that the concentrations of heavy metals leached from different ASR gasification and thermal residues were higher than the regulatory limit for hazardous waste landfills [6]. According to the new policy on waste management specified by the Korean Ministry of Environment (MOE), fly ash/bottom ash containing toxic substances was to be treated only in hazardous waste landfill sites following strict treatment procedures [11].…”

Section: Introductionmentioning

confidence: 99%

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Evaluation of heavy metals in hazardous automobile shredder residue thermal residue and immobilization with novel nano-size calcium dispersed reagent

Lee

Truc

Lee

et al. 2015

Journal of Hazardous Materials

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Life cycle assessment of innovative technology for energy production from automotive shredder residue

Rinaldi

Masoni

Salvati

et al. 2015

Integr Envir Assess & Manag

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Automotive Shredder Residue (ASR) is a problematic waste material remaining after shredding and recovery processes of end-of-life vehicles (ELVs). Its heterogeneous grain size and composition make difficult its recovery or disposal. Although ASR accounts for approximately 20% to 25% of the weight of an ELV, the European Union (EU)'s ELV Directive (2000/53/EC) requires that by 2015 a minimum 95% of the weight of an ELV must be reused or recovered, including a 10% weight energy recovery. The quantity of ASR is relevant: Approximately 2.4 million tons are generated in the EU each year and most of it is sent to landfills. This article describes a life cycle model of the "TEKNE-Fluff" process designed to make beneficial use of ASR that is based on the results of an experimental pilot plant for pyro-gasification, combustion, cogeneration, and emissions treatment of ASR. The goal of the research was the application of life cycle assessment (LCA) methodology to identify the environmental hot spots of the "TEKNE system" and use scenario analysis to check solutions to improve its environmental profile, supporting the design and industrialization process. The LCA was conducted based on data modeled from the experimental campaign. Moreover, different scenarios on shares of electricity and thermal energy produced by the cogeneration system and alternative treatment processes for the waste produced by the technology were compared. Despite the limitation of the research (results based on scaling up experimental data by modeling), impact assessment results are promising and sufficiently robust, as shown by Monte Carlo analysis. The TEKNE technology may become an interesting solution for the problem of ASR management: Besides representing an alternative to landfill disposal, the energy produced could avoid significant impacts on fossil resources depletion (a plant of 40,000 tons/y capacity could produce ∼ 147,000 GJ/yr, covering the annual need of ∼ 13,500 households).

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On the ASR and ASR thermal residues characterization of full scale treatment plant

Cited by 39 publications

References 34 publications

Feasibility Study of Sensor Aided Impact Acoustic Sorting of Plastic Materials from End-of-Life Vehicles (ELVs)

Feasibility Study of Sensor Aided Impact Acoustic Sorting of Plastic Materials from End-of-Life Vehicles (ELVs)

Evaluation of heavy metals in hazardous automobile shredder residue thermal residue and immobilization with novel nano-size calcium dispersed reagent

Life cycle assessment of innovative technology for energy production from automotive shredder residue

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