Reciclagem do lixo de informática: uma oportunidade para a química

Gerbase, Annelise Engel; Oliveira, C. R. de

doi:10.1590/s0100-40422012000700035

Cited by 25 publications

(28 citation statements)

References 16 publications

(19 reference statements)

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“…Consequently, the accumulation of electronic waste is increasing according to demand, since the average lifetime of a printer is about 5 years 1 . Electronic waste represents around 8% of the urban waste volume worldwide 2 . In Europe about 10 million tons WEEE are produced each year 3 and it is estimated that by 2020 the amount generated will reach a total annual tonnage of 12.3 million 4 .…”

Section: Introductionmentioning

confidence: 99%

Recycling and Mechanical Characterization of Polymer Blends Present in Printers

et al. 2017

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More and more electronic devices are being produced and most of them are disposed of improperly. In addition, as they contain heavy metals and toxic substances in their composition, the environmental impact increases. This work aims to study the recycling of polymers present in e-waste through the mechanical characterization of polymer blends produced with the main polymers present in printers. To do so, printers were dismounted, the material of the components was classified, and the main polymers were processed. The sample consisted of 20 printers, from which HIPS-90%/PS-10%, HIPS-90%/ ABS-10% and HIPS-100%, blends were processed by extrusion and injection of specimens with tensile test geometry. The tensile strength was 39.0 MPa for HIPS/ABS, and 37.5 MPa for HIPS/PS. Despite having slightly different mechanical properties, probably due to possible variations in their chemical composition, the formulations have good quality and potential for use in new products such as hangers, organizing boxes, soles and, watering cans.

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Section: Introductionmentioning

confidence: 99%

Recycling and Mechanical Characterization of Polymer Blends Present in Printers

et al. 2017

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“…In this scenario, the electronic waste (e‐waste) production has been growing about three times more than conventional waste production . Considering only the waste coming from computers, the United States produces 474,000 tons and China around 300,000 tons per year . In Latin America, Brazil occupies the first position of e‐waste, with 0.56 kg per capita per year.…”

Section: Introductionmentioning

confidence: 99%

Evaluation of metal release from battery and electronic components in soil using SR‐TXRF and EDXRF

Santos

Almeida²,

Kemerich

et al. 2017

X-Ray Spectrometry

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Potentially toxic elements may be leached contaminating the soil, surface, and ground water due to the improper disposal of batteries and electronic devices. The objective of this study was to evaluate metal release from batteries and electronic components deposited in specific receptacles filled with soil in which acid rain was simulated. The leachate solution and the soil were analyzed by synchrotron radiation total reflection x‐ray fluorescence and benchtop energy dispersive x‐ray fluorescence, respectively. Results indicate that batteries released K, Mn, Fe, Cu, Zn, and Pb and electronic component released Ti, Mn, Fe, Cu, Zn, and Pb. For batteries' leachate test samples, higher amounts of Fe, Cu, Mn, Zn, and Pb have been released compared with electronic component ones under same the experimental conditions. The Fe, Cu, and Pb concentrations in battery leachate test samples were above their National Environment Council maximum permitted values (MPV) and in the electronic waste leachate ones, only the Pb concentrations was above MPV. For soil sample containing batteries K, Mn and Zn presented higher concentrations, mainly at the 10‐cm topsoil, ranging from 0.16 to 0.50, 0.27 to 8.67, and 0.03 to 1.26, in % (% w/w), respectively. The Zn–C battery soil samples present similar behavior to the alkaline ones. The impact due to the Pb release was higher in the soil test samples with electronic components, in which their concentrations ranged from 51 to 394 mg/kg, above its MPV up to 28‐cm soil layer. The X‐ray fluorescence techniques employed were suitable for water and soil environmental evaluation.

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“…Recycling should be part of this strategy as today only a small portion of electronic waste is recycled (Gerbase & Oliveira, 2012) and most of it is exported to underdeveloped countries (United Nations, 2010). Recycling not only has large environmental benefits but also financial benefits.…”

Section: Introductionmentioning

confidence: 99%

E-waste Management in Portugal: Legislation, Practices and Recommendations

Marques

Silva

2017

Journal of Information Systems Engineering & Management

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The use of electrical and electronic devices has grown exponentially in the last years thanks to technological advances and its wide dissemination. Consequently, the number of obsolete equipment (electronic waste or e-waste) has also increased significantly, becoming a major problem for society. This paper deals with electronic waste and explains the concept and risks for the particular case of Portugal. Measures to reduce the problem such as legislation, education production R&D and social responsibility are also discussed. And finally, a survey is presented which was carried out in two Portuguese Higher Education institutions with a view to determining students' awareness, attitudes and opinions on this matter.

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Reciclagem do lixo de informática: uma oportunidade para a química

Cited by 25 publications

References 16 publications

Recycling and Mechanical Characterization of Polymer Blends Present in Printers

Recycling and Mechanical Characterization of Polymer Blends Present in Printers

Evaluation of metal release from battery and electronic components in soil using SR‐TXRF and EDXRF

E-waste Management in Portugal: Legislation, Practices and Recommendations

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