Introduction of the circular economy to expanded polystyrene household waste: A case study from an Ecuadorian plastic manufacturer

Hidalgo-Crespo, J.; Jervis, Freddy X.; Moreira, César M.; Soto, M.; Rivas, Jorge Luis Amaya

doi:10.1016/j.procir.2020.01.089

Cited by 19 publications

(11 citation statements)

References 13 publications

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“…It is also used extensively also due to its ability to adapt to the shape of the protected product and tear resistance. Popular foamed polystyrene has found wide ranging applications in packaging not only due to its low density, favourable thermal insulation properties, durability and low production costs but also due to the ease with which packages of almost any form may be created (Hidalgo-Crespo et al, 2020;Ho et al, 2018;Soykeabkaew et al, 2004).…”

Section: Foamed Packaging Materialsmentioning

confidence: 99%

“…At present, from the point of view of environmental protection the production of foamed polystyrene makes the most use of the raw material either from the initial stage and at the stage of the utility of postproduction wastes (Hidalgo-Crespo et al, 2020;Ho et al, 2018). The waste resulting from the cutting of foamed polystyrene is directly recycled to produce a material that can be reused.…”

Section: Environmentally Friendly Foamed Packaging Materialsmentioning

confidence: 99%

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Foamed bioplastics: a review

Combrzyński¹,

Özmen²

2021

Int. Agrophys.

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A b s t r a c t. Based on a literature review, the development and importance of foamed bioplastics in the context of conventional materials has been discussed in the paper. Raw materials, technological aspects, types of products (including a new generation of bioplastics), their advantages and disadvantages as well as user expectations are presented. Despite considerable progress, especially in the formulation of new raw material compositions, there is still a need to continue research work on the application of different techniques in the production of biodegradable porous packaging materials. It still remains the current primary goal -to produce products with physical characteristics that are comparable with those of petroleum based plastic.K e y w o r d s: physical properties, foams, porous materials, bioplastics, starch-based packaging materials

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Section: Foamed Packaging Materialsmentioning

confidence: 99%

Section: Environmentally Friendly Foamed Packaging Materialsmentioning

confidence: 99%

Foamed bioplastics: a review

Combrzyński¹,

Özmen²

2021

Int. Agrophys.

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“…In Ecuador, there has been little research on the use of PET as an alternative material in construction. Nonetheless, a study has proposed an innovative and ecological technology in the elaboration of aggregate for cobblestones in the city of Quito due to a large number of PET plastic bottles [17], [18]. The construction of construction materials whose mixing composition contains recycled PET, saves costs and generates durability benefits compared to traditionally prepared materials [19]- [21].…”

Section: Introductionmentioning

confidence: 99%

Determination of Compression Stress and Volumetric Weight of Lightened Concrete Blocks, with the Use of Recycled Polymers and Nanoadditives

Gonzagaa¹,

Carrillo²,

Bedón³

et al. 2022

International Journal on Advanced Science, Engineering and Information Technology

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The current study describes the development and evaluation of hollow concrete blocks using recycled polymers and a waterproof, resistance improver nanoadditive together with cement, sand, and pumice to search for an ecological building material capable of reducing the environmental pollution. Three phases were performed; in which the first, we characterized petrous aggregates, polyethylene terephthalate (PET) and the nanoadditive. In the second one, several dosages were established with different percentages of crushed PET that represented to the sand. Additionally, a nanoadditive's part was placed in relation to the total water of the mixture. In the third phase, the compressive stress, volumetric weight, and absorption of the elaborated specimens were determined according to the national standard. The resulting optimal dosage was about 25% PET in replacement of sand + 0.0087 kg of nanoadditive, able to generate a better quality material, obtaining a compressive strength of 36.5 kg/cm 2, very close to the normative (40 kg/cm 2 ) and superior to the of commercial blocks (14.35 kg/cm 2 ). Regarding the volumetric weights, the plastic had a good performance as it managed to reduce the weight by 20%, while the use of the nanoadditive waterproofing decreased by 25% of water absorption. The block of the current research was twice as expensive as the traditional, even if production is tripled, as it was reduced to only $ 0.06 (8%). However, in comparison with the industrially elaborated procedure, the costs are very similar.

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“…This review provides a comprehensive overview of currently employed methods for MP degradation. The main objectives of this study are to (1) summarize the emerging remediation approaches such as biological, photo-, chemical, and mechanical degradation methods for MP decomposition; (2) explore the fundamental mechanisms of MP degradation through different methods; (3) assess their decomposition efficiency; (4) present the limitations and knowledge gaps, and (5) propose suggestions for future research work.…”

Section: Introductionmentioning

confidence: 99%

“…Plastics are a fast-growing industry, which plays a vital role in improving human health and lifestyle by allowing the manufacturing of disposable medical materials and enhancing food safety . The low-cost, long-lasting, lightweight characteristics of plastic lead to its extensive use in daily life .…”

Section: Introductionmentioning

confidence: 99%

Mechanisms and the Engineering Approaches for the Degradation of Microplastics

2021

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Microplastic waste is an emerging global issue due to its environmental effect of accumulation in ecosystems, and waste managing systems have given rise to its presence in the aquatic environment. It is gaining attention due to its persistent nature and potential adverse effects on living organisms. There is an urgent need for the development of efficient degradation methods for microplastic (MP) treatment. In this review, a comprehensive overview of current methods for the degradation of MPs, such as biological, photo, chemical, and mechanical degradation have been summarized and discussed in detail. All the fundamental mechanisms of MP degradation in the natural environment are linked with remediation approaches to accelerate these mechanisms that occur in nature. Decomposition efficiency with the applied system’s limitations has also been mentioned. Furthermore, the current knowledge gaps about MP decomposition, and future research directions are proposed. This work offers a summary of current degradation methods for MP decomposition and provides a reference for the control of MP pollution.

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Introduction of the circular economy to expanded polystyrene household waste: A case study from an Ecuadorian plastic manufacturer

Cited by 19 publications

References 13 publications

Foamed bioplastics: a review

Foamed bioplastics: a review

Determination of Compression Stress and Volumetric Weight of Lightened Concrete Blocks, with the Use of Recycled Polymers and Nanoadditives

Mechanisms and the Engineering Approaches for the Degradation of Microplastics

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