Metal leaching analysis from a core-shell WEEE plastic synthetic aggregate

Peisino, Lucas Ernesto; Gómez, Melina Gabriela; Kreiker, Jerónimo; Gaggino, Rosana; Angelelli, Melina

doi:10.1016/j.scp.2019.100134

Cited by 3 publications

(3 citation statements)

References 28 publications

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“…The main polymers in WEEEP samples were HIPS (34.5 %), ABS (62.0 %) and ABS/PC (2.2 %), which were determined by FT-IR in a previous report (Peisino et al 2019). Better results in term of shapes and size homogeneity were achieved when three layers of cementitious covering were applied (Gómez et al 2020).…”

Section: Rpas Manufacturingmentioning

confidence: 82%

“…It is particularly important to analyze the impact of both contaminants (heavy metals and polybrominated organic compounds) in the final recycled material. In this way, Senthil-Kumar et al (2016) and our research group considered the presence of metals in the leaching of Portland cement base materials made with WEEEP (Peisino et al 2019). Also, we recently puy a study about the behavior of the BFRs present in WEEEP (specifically tetrabomobisphenol-A [TBBPA]), in a Portland cement system (Gómez et al 2020).…”

Section: Introductionmentioning

confidence: 99%

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Stabilization of Leachate in Aggregates Made With Plastic From Weee

Cappelletti

Peisino

Gaggino

et al. 2021

RICA

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A recycled plastic aggregate (RPA) was developed using the core-shell strategy, where the core is the plastic fraction of Waste of Electrical and Electronic Equipment (WEEE) and a cement matrix with stabilizing additives acts as the shell. The amount of brominated flame retardant (mainly tetrabromobisphenol-A) leached in curing water of RPAs was quantified using extraction with an organic solvent and gas chromatography methods (CG-FID). A clear relationship can be established between the characteristics of the stabilizing additive used and the amount of tetrabromobisphenol-A and bisphenol-A leached. The additive used was activated carbon, which in a manufacture scale may be provided by different suppliers with different mesoporous characteristics, which can be easily determined by the iodine number. The analysis proposed can be an effective way to determine if a particular activated carbon can be used as stabilizing additive in the production of RPAs with the developed technology.

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Section: Rpas Manufacturingmentioning

confidence: 82%

Section: Introductionmentioning

confidence: 99%

Stabilization of Leachate in Aggregates Made With Plastic From Weee

Cappelletti

Peisino

Gaggino

et al. 2021

RICA

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“…La metodología experimental para la fabricación del RPA core-shell se describió ampliamente en reportes previos (Gómez et al, 2020;Peisino et al, 2019). Una descripción esquemática se representa en la Figura 1.…”

Section: Agregado De Plástico Reciclado Core-shell a Partir De La Fracción Plástica De Raeeunclassified

Componentes Constructivos con Agregado de Plástico Reciclado hecho en base a Residuos de Aparatos Eléctricos y Electrónicos

Cappelletti¹,

Peisino²,

Gaggino³

et al. 2021

Congresso Internacional Sobre Patologia E Reabilitação Das Construções

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La cantidad de Residuos de Aparatos Eléctricos y Electrónicos (RAEE), creció notablemente en los últimos años y se espera que esta tendencia continúe. La fracción plástica de RAEE (FPR), constituye aproximadamente el 25% del total en peso, y no ha podido ser insertada en el circuito del reciclado, debido a la heterogeneidad de los plásticos que la componen y a la presencia de contaminantes tóxicos para la salud humana, principalmente retardantes de llama y metales pesados.La adición de plásticos a morteros, actuando como agregados o fibras de refuerzo, ha sido extensamente estudiada, logrando materiales con aptitud para el uso en la construcción, en muchos casos mejorando las propiedades técnicas. Esto llevó a considerar el uso de la FPR como agregado, en reemplazo total y/o parcial del agregado natural. Estudios previos de nuestro equipo demostraron que la matriz cementicia no logra estabilizar los contaminantes orgánicos y éstos lixivian con el tiempo, resultando ser una tecnología deficiente y un peligro para su utilización en ambientes habitados.Para estabilizar dichos contaminantes, se desarrolló un agregado de plástico reciclado (APR) aplicando el concepto Core-Shell, en el cual el núcleo de plástico reciclado es recubierto con sucesivas capas de cemento y aditivos estabilizantes. El APR mostró características físicas y morfológicas que lo hacen apto para agregar a morteros. Los ensayos químicos mostraron la estabilización completa de los contaminantes y los ensayos de resistencia a la compresión presentaron valores similares al agregado natural.En base a estos resultados se avanzó en la fabricación de componentes constructivos con el APR en reemplazo de arena para fabricar ladrillos, bloques y placas. En este trabajo se presentan los componentes fabricados y los resultados primarios de los ensayos de resistencia a la compresión simple, los cuales evidenciaron que los componentes podrían ser aptos para la construcción.

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Capillary Suction Properties of Mortar Made with Recycled Plastic Aggregates Elaborated from Waste Electrical and Electronic Equipment

Kreiker,

Gomez,

Peisino

et al. 2024

Recent Prog Mater

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It is possible to revalue the plastic fraction from WEEE using it as a recycled aggregate (RA) in cement mortars. However, this feasibility depends on elaborating a granular material via a core-shell strategy to stabilize the potential contaminants. The core is a plastic particle, and the shell is a cement, fillers, and activated carbon mixture. Due to the hydrophilic characteristics of the shell and the presence of interstitial sites generated by the use of the RA, it is necessary to study the wetting properties of these mortars. This article presents the results of capillary suction and contact angle studies of mortars made with RA having different shell compositions. The capillary suction of the latter is higher than in traditional mortars, which limits their use for structures exposed to water and environmental agents but opens the possibility of new uses in permeable concrete or for the manufacture of building components.

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Metal leaching analysis from a core-shell WEEE plastic synthetic aggregate

Cited by 3 publications

References 28 publications

Stabilization of Leachate in Aggregates Made With Plastic From Weee

Stabilization of Leachate in Aggregates Made With Plastic From Weee

Componentes Constructivos con Agregado de Plástico Reciclado hecho en base a Residuos de Aparatos Eléctricos y Electrónicos

Capillary Suction Properties of Mortar Made with Recycled Plastic Aggregates Elaborated from Waste Electrical and Electronic Equipment

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