Gravimetric composition of the rejects coming from the segregation process of the municipal recyclable wastes

Moura, João Marcos Bosi Mendonça de; Pinheiro, Ivone Gohr; Carmo, J.

doi:10.1016/j.wasman.2018.01.011

Cited by 26 publications

(28 citation statements)

References 47 publications

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“…The assessment of a representative sample of about 4 tons of solid waste sorted by the same collector’s cooperative over one year [ 48 ] quantified 30.5% (28.8 tons/month) of discarded recyclable waste. Apart from polymeric waste, a substantial presence of hazardous organic matter, construction and demolition waste, health care waste, electronics, textiles, footwear, batteries, and bulbs were identified.…”

Section: Experimental Programmentioning

confidence: 99%

Effects of Plastic Waste on the Heat-Induced Spalling Performance and Mechanical Properties of High Strength Concrete

et al. 2020

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This paper investigates a potential application of hard-to-recycle plastic waste as polymeric addition in high strength concrete, with a focus on the potential to mitigate heat-induced concrete spalling and the consequent effects on the mechanical properties. The waste corresponds to soft and hard plastic, including household polymers vastly disposed of in landfills, although technically recyclable. Mechanical and physical properties, cracking, mass loss, and the occurrence of spalling were assessed in high strength concrete samples produced with either plastic waste or polypropylene fibers after 2-h exposure to 600 °C. The analysis was supported by Scanning Electron Microscopy and X-Ray Computed Tomography images. The plastic waste is composed of different polymers with a thermal degradation between 250 to 500 °C. Polypropylene (PP) fibers and plastic waste dispersed in concrete have proved to play an essential role in mitigating heat-induced concrete spalling, contributing to the release of internal pressure after the polymer melting. The different morphology of plastic waste and polypropylene fibers leads to distinct mechanisms of action. While the vapor pressure dissipation network originated by polypropylene fibers is related to the formation of continuous channels, the plastic waste seems to cause discontinuous reservoirs and fewer damages into the concrete matrix. The incorporation of plastic waste improved heat-induced concrete spalling performance. While 6 kg/m3 of plastic increased the mechanical performance after exposure to high temperature, the incorporation of 3 kg/m3 resulted in mechanical properties comparable to the reference concrete.

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Section: Experimental Programmentioning

confidence: 99%

Effects of Plastic Waste on the Heat-Induced Spalling Performance and Mechanical Properties of High Strength Concrete

et al. 2020

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“…A study by Moura et al . of the rejects from the segregation process of selective waste collection in Blumenau, state of Santa Catarina, showed that e‐waste comprises 2.7% of the waste.…”

Section: State‐of‐the‐art Of Research On the E‐waste Management In Brmentioning

confidence: 99%

A Mini‐Review of E‐Waste Management in Brazil: Perspectives and Challenges

Neto

Silva

Santos

2019

CLEAN Soil Air Water

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The accelerated production and replacement of new electrical and electronic equipment demonstrates a tendency for the proportional increase in the generation of e-waste. Developing countries experience similar social and environmental consequences from this trend, which compounds the other challenges associated with the already poor solid waste management in these regions. Moreover, the dangerous composition of some e-waste amplifies the problems related to managing these materials. This mini-review presents a brief overview of e-waste management in Brazil, including technical aspects, scientific studies, and the challenges ahead. With the Brazilian National Policy of Solid Waste already in place, technical and scientific studies endorse measures that range from incorporating the informal recycling sector into the e-waste management sector to encouraging the expansion of the recycling industry. All such actions, combined with an intensified commitment of electronic equipment manufacturers to reverse logistics, can improve e-waste management in Brazil.

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“…[ 15 ] Brazil is the second‐largest producer of e‐waste in the Americas [ 16 ] and the practice of disposing of e‐waste mixed with common residues in the commingled collection or mixed with recyclable waste in selective collection is quite common, as described by Araujo et al., [ 17 ] Oliveira, [ 18 ] and Moura et al. [ 19 ] Knowledge of the quantities and characteristics of e‐wastes that are discarded along with the common and/or recyclable wastes is of great importance for the formulation and improvement of waste management systems and reverse logistics programs.…”

Section: Introductionmentioning

confidence: 99%

E‐Waste Mistakenly Disposed of as Recyclable Waste: A Case Study from Brazil

Oliveira

Neto

Silva

et al. 2020

CLEAN Soil Air Water

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High e‐waste production has become a growing worldwide challenge in waste management. Several studies show negative consequences for the environment and public health from improper e‐waste management. In this context, this paper presents a characterization of e‐waste sent to recyclable waste picker cooperatives in a Brazilian city. E‐waste is mistakenly disposed of by the population as common recyclable waste and collected through special selective collection programs. The research also evaluated aspects related to the risks and opportunities inherent to e‐waste handling by cooperatives. The results showed that i) the population very often discards e‐waste along with common recyclable waste; ii) cooperative members unsafely dismantle e‐waste for resale, because the profitability of these materials is much higher than that of ordinary recyclables; and iii) the municipality must make the population aware of the separation and disposal of e‐waste. More than just a challenge for managers, proper e‐waste management is a market with high environmental and economic potential, both negative and positive, and complete knowledge and mastery of it will show what will prevail. The results of this research may support a proposal for continuous monitoring and analysis of the flow of e‐waste to better manage this type of waste.

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Gravimetric composition of the rejects coming from the segregation process of the municipal recyclable wastes

Cited by 26 publications

References 47 publications

Effects of Plastic Waste on the Heat-Induced Spalling Performance and Mechanical Properties of High Strength Concrete

Effects of Plastic Waste on the Heat-Induced Spalling Performance and Mechanical Properties of High Strength Concrete

A Mini‐Review of E‐Waste Management in Brazil: Perspectives and Challenges

E‐Waste Mistakenly Disposed of as Recyclable Waste: A Case Study from Brazil

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